1Updating Information for FreeBSD current users 2 3This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>. 4See end of file for further details. For commonly done items, please see the 5COMMON ITEMS: section later in the file. These instructions assume that you 6basically know what you are doing. If not, then please consult the FreeBSD 7handbook: 8 9 http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html 10 11Items affecting the ports and packages system can be found in 12/usr/ports/UPDATING. Please read that file before running portupgrade. 13 14NOTE: FreeBSD has switched from gcc to clang. If you have trouble bootstrapping 15from older versions of FreeBSD, try WITHOUT_CLANG to bootstrap to the tip of 16stable/10, and then rebuild without this option. The bootstrap process from 17older version of current is a bit fragile. 18 1920161222 p28 FreeBSD-SA-16:39.ntp 20 21 Fix multiple vulnerabilities of ntp. 22 2320161208 p27 FreeBSD-SA-16:37.libc [revised] 24 25 Fix regressions introduced by SA-16:37.libc. 26 2720161206 p26 FreeBSD-SA-16:36.telnetd 28 FreeBSD-SA-16:37.libc 29 FreeBSD-SA-16:38.bhyve 30 FreeBSD-EN-16:19.tzcode 31 FreeBSD-EN-16:20.tzdata 32 33 Fix possible login(1) argument injection in telnetd(8). [SA-16:36] 34 Fix link_ntoa(3) buffer overflow in libc. [SA-16:37] 35 Fix possible escape from bhyve(8) virtual machine. [SA-16:38] 36 Fix warnings about valid time zone abbreviations. [EN-16:19] 37 Update timezone database information. [EN-16:20] 38 3920161102 p25 FreeBSD-SA-16:35.openssl 40 41 Fix OpenSSL remote DoS vulnerability. [SA-16:35] 42 4320161025 p24 FreeBSD-SA-16:15.sysarch [revised] 44 45 Fix incorrect argument validation in sysarch(2). [SA-16:15] 46 4720161010 p23 FreeBSD-SA-16:29.bspatch 48 FreeBSD-SA-16:30.portsnap 49 FreeBSD-SA-16:31.libarchive 50 51 Fix bspatch heap overflow vulnerability. [SA-16:29] 52 53 Fix multiple portsnap vulnerabilities. [SA-16:30] 54 55 Fix multiple libarchive vulnerabilities. [SA-16:31] 56 5720160926 p22 FreeBSD-SA-16:26.openssl [revised] 58 59 Fix OpenSSL regression introduced in SA-16:26. 60 6120160923 p21 FreeBSD-SA-16:26.openssl 62 63 Fix multiple OpenSSL vulnerabilitites. 64 6520160725 p20 FreeBSD-SA-16:25.bspatch 66 FreeBSD-EN-16:09.freebsd-update 67 68 Fix bspatch heap overflow vulnerability. [SA-16:25] 69 70 Fix freebsd-update(8) support of FreeBSD 11.0 release 71 distribution. [EN-16:09] 72 7320160604 p19 FreeBSD-SA-16:24.ntp 74 75 Fix multiple vulnerabilities of ntp. 76 7720160531 p18 FreeBSD-SA-16:20.linux 78 FreeBSD-SA-16:21.43bsd 79 FreeBSD-SA-16:22.libarchive 80 81 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 82 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 83 Fix directory traversal in cpio(1). [SA-16:22] 84 8520160517 p17 FreeBSD-SA-16:18.atkbd 86 FreeBSD-SA-16:19.sendmsg 87 88 Fix buffer overflow in keyboard driver. [SA-16:18] 89 90 Fix incorrect argument handling in sendmsg(2). [SA-16:19] 91 9220160504 p16 FreeBSD-SA-16:17.openssl 93 FreeBSD-EN-16:07.ipi 94 FreeBSD-EN-16:08.zfs 95 96 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 97 98 Fix excessive latency in x86 IPI delivery. [EN-16:07] 99 100 Fix memory leak in ZFS. [EN-16:08] 101 10220160429 p15 FreeBSD-SA-16:16.ntp 103 104 Fix multiple vulnerabilities of ntp. 105 10620160316 p14 FreeBSD-SA-16:14.openssh-xauth 107 FreeBSD-SA-16:15.sysarch 108 FreeBSD-EN-16:04.hyperv 109 FreeBSD-EN-16:05.hv_netvsc 110 111 Fix OpenSSH xauth(1) command injection. [SA-16:14] 112 Fix incorrect argument validation in sysarch(2). [SA-16:15] 113 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04] 114 Fix hv_netvsc(4) incorrect TCP/IP checksums. [EN-16:05] 115 11620160303 p13 FreeBSD-SA-16:12.openssl 117 118 Fix multiple vulnerabilities of OpenSSL. 119 12020160130 p12 FreeBSD-SA-16:11.openssl 121 122 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 123 12420160127 p11 FreeBSD-SA-16:09.ntp 125 FreeBSD-SA-16:10.linux 126 127 Fix multiple vulnerabilities of ntp. [SA-16:09] 128 129 Fix Linux compatibility layer issetugid(2) system call 130 vulnerability. [SA-16:10] 131 13220160114 p10 FreeBSD-SA-16:07.openssh 133 134 Fix OpenSSH client information leak. [SA-16:07] 135 13620160114 p9 FreeBSD-EN-16:01.filemon 137 FreeBSD-EN-16:02.pf 138 FreeBSD-EN-16:03.yplib 139 FreeBSD-SA-16:01.sctp 140 FreeBSD-SA-16:02.ntp 141 FreeBSD-SA-16:03.linux 142 FreeBSD-SA-16:04.linux 143 FreeBSD-SA-16:05.tcp 144 FreeBSD-SA-16:06.bsnmpd 145 146 Fix multiple stability and locking problems in filemon(4). [EN-16:01] 147 Fix pf(4) generating bad TCP checksums. [EN-16:02] 148 Fix infinite loop in YP/NIS client library. [EN-16:03] 149 Fix remote denial of service in SCTP. [SA-16:01] 150 Update NTP to 4.2.8p5. [SA-16:02] 151 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 152 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 153 Fix crash in TCP MD5 signatures. [SA-16:05] 154 Fix insecure default permissions for snmpd.config. [SA-16:06] 155 15620151205 p8 FreeBSD-SA-15:26.openssl 157 158 Fix multiple OpenSSL vulnerabilities. [SA-15:26] 159 16020151104 p7 FreeBSD-SA-15:25.ntp [revised] 161 FreeBSD-EN-15:19.kqueue 162 FreeBSD-EN-15:20.vm 163 164 Fix regression in ntpd(8) lacking support for RAWDCF reference 165 clock in 10.2-RELEASE-p6. [SA-15:25] 166 167 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 168 169 Fix applications exiting due to segmentation violation on a correct 170 memory address. [EN-15:20.vm] 171 17220151026: p6 FreeBSD-SA-15:25.ntp 173 174 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 175 17620151002: p5 FreeBSD-SA-15:24.rpcbind [revised] 177 Revised patch to address a regression that prevents NIS from working. 178 17920150929: p4 FreeBSD-SA-15:24.rpcbind 180 181 Fix rpcbind(8) remote denial of service. [SA-15:24] 182 18320150916: p3 FreeBSD-EN-15:16.pw 184 FreeBSD-EN-15:17.libc 185 FreeBSD-EN-15:18.pkg 186 187 Fix regression in pw(8) when creating numeric users or groups. 188 [EN-15:16] 189 190 Fix libc handling of signals for multi-threaded processes. 191 [EN-15:17] 192 193 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 194 19520150825: p2 FreeBSD-SA-15:22.openssh 196 FreeBSD-EN-15:15.pkg 197 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 198 199 Fix insufficient check of unsupported pkg(7) signature methods. 200 [EN-15:15] 201 20220150818: p1 FreeBSD-SA-15:20.expat 203 FreeBSD-EN-15:11.toolchain 204 FreeBSD-EN-15:12.netstat 205 FreeBSD-EN-15:13.vidcontrol 206 207 Fix multiple integer overflows in expat (libbsdxml) XML parser. 208 [SA-15:20] 209 210 Fix make(1) syntax errors when upgrading from 9.x and earlier. 211 [EN-15:11] 212 213 Fix incorrect netstat(1) data handling on 32-bit systems. 214 [EN-15:12] 215 216 Allow size argument to vidcontrol(1) for syscons(4). [EN-15:13] 217 21820150813: 219 10.2-RELEASE. 220 22120150703: 222 The default Unbound configuration now enables remote control 223 using a local socket. Users who have already enabled the 224 local_unbound service should regenerate their configuration 225 by running "service local_unbound setup" as root. 226 22720150624: 228 An additional fix for the issue described in the 20150614 sendmail 229 entry below has been been committed in revision 284786. 230 23120150615: 232 The fix for the issue described in the 20150614 sendmail entry 233 below has been been committed in revision 284485. The work 234 around described in that entry is no longer needed unless the 235 default setting is overridden by a confDH_PARAMETERS configuration 236 setting of '5' or pointing to a 512 bit DH parameter file. 237 23820150614: 239 The import of openssl to address the FreeBSD-SA-15:10.openssl 240 security advisory includes a change which rejects handshakes 241 with DH parameters below 768 bits. sendmail releases prior 242 to 8.15.2 (not yet released), defaulted to a 512 bit 243 DH parameter setting for client connections. To work around 244 this interoperability, sendmail can be configured to use a 245 2048 bit DH parameter by: 246 247 1. Edit /etc/mail/`hostname`.mc 248 2. If a setting for confDH_PARAMETERS does not exist or 249 exists and is set to a string beginning with '5', 250 replace it with '2'. 251 3. If a setting for confDH_PARAMETERS exists and is set to 252 a file path, create a new file with: 253 openssl dhparam -out /path/to/file 2048 254 4. Rebuild the .cf file: 255 cd /etc/mail/; make; make install 256 5. Restart sendmail: 257 cd /etc/mail/; make restart 258 259 A sendmail patch is coming, at which time this file will be 260 updated. 261 26220150601: 263 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 264 defined in symlink(7); previously symlinks were silently ignored. 265 26620150430: 267 The const qualifier has been removed from iconv(3) to comply with 268 POSIX. The ports tree is aware of this from r384038 onwards. 269 27020141215: 271 At svn r275807, The default linux compat kernel ABI has been adjusted 272 to 2.6.18 in support of the linux-c6 compat ports infrastructure 273 update. If you wish to continue using the linux-f10 compat ports, 274 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 275 encouraged to update their linux-compat packages to linux-c6 during 276 their next update cycle. 277 278 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 279 28020141205: 281 pjdfstest has been integrated into kyua as an opt-in test suite. 282 Please see share/doc/pjdfstest/README for a more details on how to 283 execute it. 284 28520141118: 286 10.1-RELEASE. 287 28820140904: 289 The ofwfb driver, used to provide a graphics console on PowerPC when 290 using vt(4), no longer allows mmap() of all of physical memory. This 291 will prevent Xorg on PowerPC with some ATI graphics cards from 292 initializing properly unless x11-servers/xorg-server is updated to 293 1.12.4_8 or newer. 294 29520140831: 296 The libatf-c and libatf-c++ major versions were downgraded to 0 and 297 1 respectively to match the upstream numbers. They were out of 298 sync because, when they were originally added to FreeBSD, the 299 upstream versions were not respected. These libraries are private 300 and not yet built by default, so renumbering them should be a 301 non-issue. However, unclean source trees will yield broken test 302 programs once the operator executes "make delete-old-libs" after a 303 "make installworld". 304 305 Additionally, the atf-sh binary was made private by moving it into 306 /usr/libexec/. Already-built shell test programs will keep the 307 path to the old binary so they will break after "make delete-old" 308 is run. 309 310 If you are using WITH_TESTS=yes (not the default), wipe the object 311 tree and rebuild from scratch to prevent spurious test failures. 312 This is only needed once: the misnumbered libraries and misplaced 313 binaries have been added to OptionalObsoleteFiles.inc so they will 314 be removed during a clean upgrade. 315 31620140814: 317 The ixgbe tunables now match their sysctl counterparts, for example: 318 hw.ixgbe.enable_aim => hw.ix.enable_aim 319 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 320 32120140801: 322 The NFSv4.1 server committed by r269398 changes the internal 323 function call interfaces used between the NFS and krpc modules. 324 As such, __FreeBSD_version was bumped. 325 32620140729: 327 The default unbound configuration has been modified to address 328 issues with reverse lookups on networks that use private 329 address ranges. If you use the local_unbound service, run 330 "service local_unbound setup" as root to regenerate your 331 configuration, then "service local_unbound reload" to load the 332 new configuration. 333 33420140717: 335 It is no longer necessary to include the dwarf version in your DEBUG 336 options in your kernel config file. The bug that required it to be 337 placed in the config file has bene fixed. DEBUG should now just 338 contain -g. The build system will automatically update things 339 to do the right thing. 340 34120140715: 342 Several ABI breaking changes were merged to CTL and new iSCSI code. 343 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 344 iscsictl need to be rebuilt to work with a new kernel. 345 34620140708: 347 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 348 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 349 which differs from the behaviour controlled by this knob.) 350 35120140608: 352 On i386 and amd64 systems, the onifconsole flag is now set by default 353 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 354 as a login TTY if it is set in the bootloader as an active kernel 355 console. No changes in behavior should result otherwise. To revert to 356 the previous behavior, set ttyu0 to "off" in /etc/ttys. 357 35820140512: 359 Clang and llvm have been upgraded to 3.4.1 release. 360 36120140321: 362 Clang and llvm have been upgraded to 3.4 release. 363 36420140306: 365 If a Makefile in a tests/ directory was auto-generating a Kyuafile 366 instead of providing an explicit one, this would prevent such 367 Makefile from providing its own Kyuafile in the future during 368 NO_CLEAN builds. This has been fixed in the Makefiles but manual 369 intervention is needed to clean an objdir if you use NO_CLEAN: 370 # find /usr/obj -name Kyuafile | xargs rm -f 371 37220140303: 373 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 374 capability mode support. Please note that enabling the feature in 375 kernel is still highly recommended. 376 37720140227: 378 OpenSSH is now built with sandbox support, and will use sandbox as 379 the default privilege separation method. This requires Capsicum 380 capability mode support in kernel. 381 38220140216: 383 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 384 been deprecated and will not be part of FreeBSD 11.0 and later 385 releases. If you use this driver, please consider switching to 386 the nfe(4) driver instead. 387 38820140120: 389 10.0-RELEASE. 390 39120131216: 392 The behavior of gss_pseudo_random() for the krb5 mechanism 393 has changed, for applications requesting a longer random string 394 than produced by the underlying enctype's pseudo-random() function. 395 In particular, the random string produced from a session key of 396 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 397 be different at the 17th octet and later, after this change. 398 The counter used in the PRF+ construction is now encoded as a 399 big-endian integer in accordance with RFC 4402. 400 __FreeBSD_version is bumped to 1000701. 401 40220131108: 403 The WITHOUT_ATF build knob has been removed and its functionality 404 has been subsumed into the more generic WITHOUT_TESTS. If you were 405 using the former to disable the build of the ATF libraries, you 406 should change your settings to use the latter. 407 40820131031: 409 The default version of mtree is nmtree which is obtained from 410 NetBSD. The output is generally the same, but may vary 411 slightly. If you found you need identical output adding 412 "-F freebsd9" to the command line should do the trick. For the 413 time being, the old mtree is available as fmtree. 414 41520131014: 416 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 417 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 418 1.1.4_8 and verify bsdyml not linked in, before running "make 419 delete-old-libs": 420 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 421 or 422 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 423 42420131010: 425 The rc.d/jail script has been updated to support jail(8) 426 configuration file. The "jail_<jname>_*" rc.conf(5) variables 427 for per-jail configuration are automatically converted to 428 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 429 This is transparently backward compatible. See below about some 430 incompatibilities and rc.conf(5) manual page for more details. 431 432 These variables are now deprecated in favor of jail(8) configuration 433 file. One can use "rc.d/jail config <jname>" command to generate 434 a jail(8) configuration file in /var/run/jail.<jname>.conf without 435 running the jail(8) utility. The default pathname of the 436 configuration file is /etc/jail.conf and can be specified by 437 using $jail_conf or $jail_<jname>_conf variables. 438 439 Please note that jail_devfs_ruleset accepts an integer at 440 this moment. Please consider to rewrite the ruleset name 441 with an integer. 442 44320130930: 444 BIND has been removed from the base system. If all you need 445 is a local resolver, simply enable and start the local_unbound 446 service instead. Otherwise, several versions of BIND are 447 available in the ports tree. The dns/bind99 port is one example. 448 449 With this change, nslookup(1) and dig(1) are no longer in the base 450 system. Users should instead use host(1) and drill(1) which are 451 in the base system. Alternatively, nslookup and dig can 452 be obtained by installing the dns/bind-tools port. 453 45420130916: 455 With the addition of unbound(8), a new unbound user is now 456 required during installworld. "mergemaster -p" can be used to 457 add the user prior to installworld, as documented in the handbook. 458 45920130911: 460 OpenSSH is now built with DNSSEC support, and will by default 461 silently trust signed SSHFP records. This can be controlled with 462 the VerifyHostKeyDNS client configuration setting. DNSSEC support 463 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 464 46520130906: 466 The GNU Compiler Collection and C++ standard library (libstdc++) 467 are no longer built by default on platforms where clang is the system 468 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 469 options in src.conf. 470 47120130905: 472 The PROCDESC kernel option is now part of the GENERIC kernel 473 configuration and is required for the rwhod(8) to work. 474 If you are using custom kernel configuration, you should include 475 'options PROCDESC'. 476 47720130905: 478 The API and ABI related to the Capsicum framework was modified 479 in backward incompatible way. The userland libraries and programs 480 have to be recompiled to work with the new kernel. This includes the 481 following libraries and programs, but the whole buildworld is 482 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 483 kdump, procstat, rwho, rwhod, uniq. 484 48520130903: 486 AES-NI intrinsic support has been added to gcc. The AES-NI module 487 has been updated to use this support. A new gcc is required to build 488 the aesni module on both i386 and amd64. 489 49020130821: 491 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 492 Thus "device padlock_rng" and "device rdrand_rng" should be 493 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 494 49520130813: 496 WITH_ICONV has been split into two feature sets. WITH_ICONV now 497 enables just the iconv* functionality and is now on by default. 498 WITH_LIBICONV_COMPAT enables the libiconv api and link time 499 compatability. Set WITHOUT_ICONV to build the old way. 500 If you have been using WITH_ICONV before, you will very likely 501 need to turn on WITH_LIBICONV_COMPAT. 502 50320130806: 504 INVARIANTS option now enables DEBUG for code with OpenSolaris and 505 Illumos origin, including ZFS. If you have INVARIANTS in your 506 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 507 explicitly. 508 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 509 locks if WITNESS option was set. Because that generated a lot of 510 witness(9) reports and all of them were believed to be false 511 positives, this is no longer done. New option OPENSOLARIS_WITNESS 512 can be used to achieve the previous behavior. 513 51420130806: 515 Timer values in IPv6 data structures now use time_uptime instead 516 of time_second. Although this is not a user-visible functional 517 change, userland utilities which directly use them---ndp(8), 518 rtadvd(8), and rtsold(8) in the base system---need to be updated 519 to r253970 or later. 520 52120130802: 522 find -delete can now delete the pathnames given as arguments, 523 instead of only files found below them or if the pathname did 524 not contain any slashes. Formerly, the following error message 525 would result: 526 527 find: -delete: <path>: relative path potentially not safe 528 529 Deleting the pathnames given as arguments can be prevented 530 without error messages using -mindepth 1 or by changing 531 directory and passing "." as argument to find. This works in the 532 old as well as the new version of find. 533 53420130726: 535 Behavior of devfs rules path matching has been changed. 536 Pattern is now always matched against fully qualified devfs 537 path and slash characters must be explicitly matched by 538 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 539 subdirectories must be reviewed. 540 54120130716: 542 The default ARM ABI has changed to the ARM EABI. The old ABI is 543 incompatible with the ARM EABI and all programs and modules will 544 need to be rebuilt to work with a new kernel. 545 546 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 547 548 NOTE: Support for the old ABI will be removed in the future and 549 users are advised to upgrade. 550 55120130709: 552 pkg_install has been disconnected from the build if you really need it 553 you should add WITH_PKGTOOLS in your src.conf(5). 554 55520130709: 556 Most of network statistics structures were changed to be able 557 keep 64-bits counters. Thus all tools, that work with networking 558 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 559 56020130629: 561 Fix targets that run multiple make's to use && rather than ; 562 so that subsequent steps depend on success of previous. 563 564 NOTE: if building 'universe' with -j* on stable/8 or stable/9 565 it would be better to start the build using bmake, to avoid 566 overloading the machine. 567 56820130618: 569 Fix a bug that allowed a tracing process (e.g. gdb) to write 570 to a memory-mapped file in the traced process's address space 571 even if neither the traced process nor the tracing process had 572 write access to that file. 573 57420130615: 575 CVS has been removed from the base system. An exact copy 576 of the code is available from the devel/cvs port. 577 57820130613: 579 Some people report the following error after the switch to bmake: 580 581 make: illegal option -- J 582 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 583 ... 584 *** [buildworld] Error code 2 585 586 this likely due to an old instance of make in 587 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 588 which src/Makefile will use that blindly, if it exists, so if 589 you see the above error: 590 591 rm -rf `make -V MAKEPATH` 592 593 should resolve it. 594 59520130516: 596 Use bmake by default. 597 Whereas before one could choose to build with bmake via 598 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 599 make. The goal is to remove these knobs for 10-RELEASE. 600 601 It is worth noting that bmake (like gmake) treats the command 602 line as the unit of failure, rather than statements within the 603 command line. Thus '(cd some/where && dosomething)' is safer 604 than 'cd some/where; dosomething'. The '()' allows consistent 605 behavior in parallel build. 606 60720130429: 608 Fix a bug that allows NFS clients to issue READDIR on files. 609 61020130426: 611 The WITHOUT_IDEA option has been removed because 612 the IDEA patent expired. 613 61420130426: 615 The sysctl which controls TRIM support under ZFS has been renamed 616 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 617 enabled by default. 618 61920130425: 620 The mergemaster command now uses the default MAKEOBJDIRPREFIX 621 rather than creating it's own in the temporary directory in 622 order allow access to bootstrapped versions of tools such as 623 install and mtree. When upgrading from version of FreeBSD where 624 the install command does not support -l, you will need to 625 install a new mergemaster command if mergemaster -p is required. 626 This can be accomplished with the command (cd src/usr.sbin/mergemaster 627 && make install). 628 62920130404: 630 Legacy ATA stack, disabled and replaced by new CAM-based one since 631 FreeBSD 9.0, completely removed from the sources. Kernel modules 632 atadisk and atapi*, user-level tools atacontrol and burncd are 633 removed. Kernel option `options ATA_CAM` is now permanently enabled 634 and removed. 635 63620130319: 637 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 638 and socketpair(2). Software, in particular Kerberos, may 639 automatically detect and use these during building. The resulting 640 binaries will not work on older kernels. 641 64220130308: 643 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 644 information, see the respective 20130304 entry). 645 64620130304: 647 Recent commits to callout(9) changed the size of struct callout, 648 so the KBI is probably heavily disturbed. Also, some functions 649 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 650 by macros. Every kernel module using it won't load, so rebuild 651 is requested. 652 653 The ctl device has been re-enabled in GENERIC for i386 and amd64, 654 but does not initialize by default (because of the new CTL_DISABLE 655 option) to save memory. To re-enable it, remove the CTL_DISABLE 656 option from the kernel config file or set kern.cam.ctl.disable=0 657 in /boot/loader.conf. 658 65920130301: 660 The ctl device has been disabled in GENERIC for i386 and amd64. 661 This was done due to the extra memory being allocated at system 662 initialisation time by the ctl driver which was only used if 663 a CAM target device was created. This makes a FreeBSD system 664 unusable on 128MB or less of RAM. 665 66620130208: 667 A new compression method (lz4) has been merged to -HEAD. Please 668 refer to zpool-features(7) for more information. 669 670 Please refer to the "ZFS notes" section of this file for information 671 on upgrading boot ZFS pools. 672 67320130129: 674 A BSD-licensed patch(1) variant has been added and is installed 675 as bsdpatch, being the GNU version the default patch. 676 To inverse the logic and use the BSD-licensed one as default, 677 while having the GNU version installed as gnupatch, rebuild 678 and install world with the WITH_BSD_PATCH knob set. 679 68020130121: 681 Due to the use of the new -l option to install(1) during build 682 and install, you must take care not to directly set the INSTALL 683 make variable in your /etc/make.conf, /etc/src.conf, or on the 684 command line. If you wish to use the -C flag for all installs 685 you may be able to add INSTALL+=-C to /etc/make.conf or 686 /etc/src.conf. 687 68820130118: 689 The install(1) option -M has changed meaning and now takes an 690 argument that is a file or path to append logs to. In the 691 unlikely event that -M was the last option on the command line 692 and the command line contained at least two files and a target 693 directory the first file will have logs appended to it. The -M 694 option served little practical purpose in the last decade so its 695 use is expected to be extremely rare. 696 69720121223: 698 After switching to Clang as the default compiler some users of ZFS 699 on i386 systems started to experience stack overflow kernel panics. 700 Please consider using 'options KSTACK_PAGES=4' in such configurations. 701 70220121222: 703 GEOM_LABEL now mangles label names read from file system metadata. 704 Mangling affect labels containing spaces, non-printable characters, 705 '%' or '"'. Device names in /etc/fstab and other places may need to 706 be updated. 707 70820121217: 709 By default, only the 10 most recent kernel dumps will be saved. To 710 restore the previous behaviour (no limit on the number of kernel dumps 711 stored in the dump directory) add the following line to /etc/rc.conf: 712 713 savecore_flags="" 714 71520121201: 716 With the addition of auditdistd(8), a new auditdistd user is now 717 required during installworld. "mergemaster -p" can be used to 718 add the user prior to installworld, as documented in the handbook. 719 72020121117: 721 The sin6_scope_id member variable in struct sockaddr_in6 is now 722 filled by the kernel before passing the structure to the userland via 723 sysctl or routing socket. This means the KAME-specific embedded scope 724 id in sin6_addr.s6_addr[2] is always cleared in userland application. 725 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 726 __FreeBSD_version is bumped to 1000025. 727 72820121105: 729 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 730 This means that the world and kernel will be compiled with clang 731 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 732 and /usr/bin/cpp. To disable this behavior and revert to building 733 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 734 of current may need to bootstrap WITHOUT_CLANG first if the clang 735 build fails (its compatibility window doesn't extend to the 9 stable 736 branch point). 737 73820121102: 739 The IPFIREWALL_FORWARD kernel option has been removed. Its 740 functionality now turned on by default. 741 74220121023: 743 The ZERO_COPY_SOCKET kernel option has been removed and 744 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 745 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 746 mechanism which is not safe and may result in kernel crashes. 747 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 748 driver supports disposeable external page sized mbuf storage. 749 Proper replacements for both zero-copy mechanisms are under 750 consideration and will eventually lead to complete removal 751 of the two kernel options. 752 75320121023: 754 The IPv4 network stack has been converted to network byte 755 order. The following modules need to be recompiled together 756 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 757 pf(4), ipfw(4), ng_ipfw(4), stf(4). 758 75920121022: 760 Support for non-MPSAFE filesystems was removed from VFS. The 761 VFS_VERSION was bumped, all filesystem modules shall be 762 recompiled. 763 76420121018: 765 All the non-MPSAFE filesystems have been disconnected from 766 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 767 portalfs, smbfs, xfs. 768 76920121016: 770 The interface cloning API and ABI has changed. The following 771 modules need to be recompiled together with kernel: 772 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 773 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 774 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 775 77620121015: 777 The sdhci driver was split in two parts: sdhci (generic SD Host 778 Controller logic) and sdhci_pci (actual hardware driver). 779 No kernel config modifications are required, but if you 780 load sdhc as a module you must switch to sdhci_pci instead. 781 78220121014: 783 Import the FUSE kernel and userland support into base system. 784 78520121013: 786 The GNU sort(1) program has been removed since the BSD-licensed 787 sort(1) has been the default for quite some time and no serious 788 problems have been reported. The corresponding WITH_GNU_SORT 789 knob has also gone. 790 79120121006: 792 The pfil(9) API/ABI for AF_INET family has been changed. Packet 793 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 794 with new kernel. 795 79620121001: 797 The net80211(4) ABI has been changed to allow for improved driver 798 PS-POLL and power-save support. All wireless drivers need to be 799 recompiled to work with the new kernel. 800 80120120913: 802 The random(4) support for the VIA hardware random number 803 generator (`PADLOCK') is no longer enabled unconditionally. 804 Add the padlock_rng device in the custom kernel config if 805 needed. The GENERIC kernels on i386 and amd64 do include the 806 device, so the change only affects the custom kernel 807 configurations. 808 80920120908: 810 The pf(4) packet filter ABI has been changed. pfctl(8) and 811 snmp_pf module need to be recompiled to work with new kernel. 812 81320120828: 814 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 815 to -HEAD. Pools that have empty_bpobj in active state can not be 816 imported read-write with ZFS implementations that do not support 817 this feature. For more information read the zpool-features(5) 818 manual page. 819 82020120727: 821 The sparc64 ZFS loader has been changed to no longer try to auto- 822 detect ZFS providers based on diskN aliases but now requires these 823 to be explicitly listed in the OFW boot-device environment variable. 824 82520120712: 826 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 827 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 828 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 829 83020120712: 831 The following sysctls and tunables have been renamed for consistency 832 with other variables: 833 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 834 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 835 83620120628: 837 The sort utility has been replaced with BSD sort. For now, GNU sort 838 is also available as "gnusort" or the default can be set back to 839 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 840 installed as "bsdsort". 841 84220120611: 843 A new version of ZFS (pool version 5000) has been merged to -HEAD. 844 Starting with this version the old system of ZFS pool versioning 845 is superseded by "feature flags". This concept enables forward 846 compatibility against certain future changes in functionality of ZFS 847 pools. The first read-only compatible "feature flag" for ZFS pools 848 is named "com.delphix:async_destroy". For more information 849 read the new zpool-features(5) manual page. 850 Please refer to the "ZFS notes" section of this file for information 851 on upgrading boot ZFS pools. 852 85320120417: 854 The malloc(3) implementation embedded in libc now uses sources imported 855 as contrib/jemalloc. The most disruptive API change is to 856 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 857 delete it prior to installworld, and optionally re-create it using the 858 new format after rebooting. See malloc.conf(5) for details 859 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 860 NAMESPACE section). 861 86220120328: 863 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 864 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 865 now spelled mips. This is to aid compatibility with third-party 866 software that expects this naming scheme in uname(3). Little-endian 867 settings are unchanged. If you are updating a big-endian mips64 machine 868 from before this change, you may need to set MACHINE_ARCH=mips64 in 869 your environment before the new build system will recognize your machine. 870 87120120306: 872 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 873 platforms. 874 87520120229: 876 Now unix domain sockets behave "as expected" on nullfs(5). Previously 877 nullfs(5) did not pass through all behaviours to the underlying layer, 878 as a result if we bound to a socket on the lower layer we could connect 879 only to the lower path; if we bound to the upper layer we could connect 880 only to the upper path. The new behavior is one can connect to both the 881 lower and the upper paths regardless what layer path one binds to. 882 88320120211: 884 The getifaddrs upgrade path broken with 20111215 has been restored. 885 If you have upgraded in between 20111215 and 20120209 you need to 886 recompile libc again with your kernel. You still need to recompile 887 world to be able to configure CARP but this restriction already 888 comes from 20111215. 889 89020120114: 891 The set_rcvar() function has been removed from /etc/rc.subr. All 892 base and ports rc.d scripts have been updated, so if you have a 893 port installed with a script in /usr/local/etc/rc.d you can either 894 hand-edit the rcvar= line, or reinstall the port. 895 896 An easy way to handle the mass-update of /etc/rc.d: 897 rm /etc/rc.d/* && mergemaster -i 898 89920120109: 900 panic(9) now stops other CPUs in the SMP systems, disables interrupts 901 on the current CPU and prevents other threads from running. 902 This behavior can be reverted using the kern.stop_scheduler_on_panic 903 tunable/sysctl. 904 The new behavior can be incompatible with kern.sync_on_panic. 905 90620111215: 907 The carp(4) facility has been changed significantly. Configuration 908 of the CARP protocol via ifconfig(8) has changed, as well as format 909 of CARP events submitted to devd(8) has changed. See manual pages 910 for more information. The arpbalance feature of carp(4) is currently 911 not supported anymore. 912 913 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 914 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 915 need to be recompiled. 916 91720111122: 918 The acpi_wmi(4) status device /dev/wmistat has been renamed to 919 /dev/wmistat0. 920 92120111108: 922 The option VFS_ALLOW_NONMPSAFE option has been added in order to 923 explicitely support non-MPSAFE filesystems. 924 It is on by default for all supported platform at this present 925 time. 926 92720111101: 928 The broken amd(4) driver has been replaced with esp(4) in the amd64, 929 i386 and pc98 GENERIC kernel configuration files. 930 93120110930: 932 sysinstall has been removed 933 93420110923: 935 The stable/9 branch created in subversion. This corresponds to the 936 RELENG_9 branch in CVS. 937 93820110913: 939 This commit modifies vfs_register() so that it uses a hash 940 calculation to set vfc_typenum, which is enabled by default. 941 The first time a system is booted after this change, the 942 vfc_typenum values will change for all file systems. The 943 main effect of this is a change to the NFS server file handles 944 for file systems that use vfc_typenum in their fsid, such as ZFS. 945 It will, however, prevent vfc_typenum from changing when file 946 systems are loaded in a different order for subsequent reboots. 947 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 948 until you are ready to remount all NFS clients after a reboot. 949 95020110828: 951 Bump the shared library version numbers for libraries that 952 do not use symbol versioning, have changed the ABI compared 953 to stable/8 and which shared library version was not bumped. 954 Done as part of 9.0-RELEASE cycle. 955 95620110815: 957 During the merge of Capsicum features, the fget(9) KPI was modified. 958 This may require the rebuilding of out-of-tree device drivers -- 959 issues have been reported specifically with the nVidia device driver. 960 __FreeBSD_version is bumped to 900041. 961 962 Also, there is a period between 20110811 and 20110814 where the 963 special devices /dev/{stdin,stdout,stderr} did not work correctly. 964 Building world from a kernel during that window may not work. 965 96620110628: 967 The packet filter (pf) code has been updated to OpenBSD 4.5. 968 You need to update userland tools to be in sync with kernel. 969 This update breaks backward compatibility with earlier pfsync(4) 970 versions. Care must be taken when updating redundant firewall setups. 971 97220110608: 973 The following sysctls and tunables are retired on x86 platforms: 974 machdep.hlt_cpus 975 machdep.hlt_logical_cpus 976 The following sysctl is retired: 977 machdep.hyperthreading_allowed 978 The sysctls were supposed to provide a way to dynamically offline and 979 online selected CPUs on x86 platforms, but the implementation has not 980 been reliable especially with SCHED_ULE scheduler. 981 machdep.hyperthreading_allowed tunable is still available to ignore 982 hyperthreading CPUs at OS level. 983 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 984 where X is an APIC ID of a CPU. Be advised, though, that disabling 985 CPUs in non-uniform fashion will result in non-uniform topology and 986 may lead to sub-optimal system performance with SCHED_ULE, which is 987 a default scheduler. 988 98920110607: 990 cpumask_t type is retired and cpuset_t is used in order to describe 991 a mask of CPUs. 992 99320110531: 994 Changes to ifconfig(8) for dynamic address family detection mandate 995 that you are running a kernel of 20110525 or later. Make sure to 996 follow the update procedure to boot a new kernel before installing 997 world. 998 99920110513: 1000 Support for sun4v architecture is officially dropped 1001 100220110503: 1003 Several KPI breaking changes have been committed to the mii(4) layer, 1004 the PHY drivers and consequently some Ethernet drivers using mii(4). 1005 This means that miibus.ko and the modules of the affected Ethernet 1006 drivers need to be recompiled. 1007 1008 Note to kernel developers: Given that the OUI bit reversion problem 1009 was fixed as part of these changes all mii(4) commits related to OUIs, 1010 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 1011 handling, no longer can be merged verbatim to stable/8 and previous 1012 branches. 1013 101420110430: 1015 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 1016 into their kernel configurations along with 'device pci'. 1017 101820110427: 1019 The default NFS client is now the new NFS client, so fstype "newnfs" 1020 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 1021 Although mounts via fstype "nfs" will usually work without userland 1022 changes, it is recommended that the mount(8) and mount_nfs(8) 1023 commands be rebuilt from sources and that a link to mount_nfs called 1024 mount_oldnfs be created. The new client is compiled into the 1025 kernel with "options NFSCL" and this is needed for diskless root 1026 file systems. The GENERIC kernel configs have been changed to use 1027 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 1028 To use the regular/old client, you can "mount -t oldnfs ...". For 1029 a diskless root file system, you must also include a line like: 1030 1031 vfs.root.mountfrom="oldnfs:" 1032 1033 in the boot/loader.conf on the root fs on the NFS server to make 1034 a diskless root fs use the old client. 1035 103620110424: 1037 The GENERIC kernels for all architectures now default to the new 1038 CAM-based ATA stack. It means that all legacy ATA drivers were 1039 removed and replaced by respective CAM drivers. If you are using 1040 ATA device names in /etc/fstab or other places, make sure to update 1041 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 1042 where 'Y's are the sequential numbers starting from zero for each type 1043 in order of detection, unless configured otherwise with tunables, 1044 see cam(4)). There will be symbolic links created in /dev/ to map 1045 old adX devices to the respective adaY. They should provide basic 1046 compatibility for file systems mounting in most cases, but they do 1047 not support old user-level APIs and do not have respective providers 1048 in GEOM. Consider using updated management tools with new device names. 1049 1050 It is possible to load devices ahci, ata, siis and mvs as modules, 1051 but option ATA_CAM should remain in kernel configuration to make ata 1052 module work as CAM driver supporting legacy ATA controllers. Device ata 1053 still can be used in modular fashion (atacore + ...). Modules atadisk 1054 and atapi* are not used and won't affect operation in ATA_CAM mode. 1055 Note that to use CAM-based ATA kernel should include CAM devices 1056 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1057 them are parts of the cam module. 1058 1059 ataraid(4) functionality is now supported by the RAID GEOM class. 1060 To use it you can load geom_raid kernel module and use graid(8) tool 1061 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1062 1063 No kernel config options or code have been removed, so if a problem 1064 arises, please report it and optionally revert to the old ATA stack. 1065 In order to do it you can remove from the kernel config: 1066 options ATA_CAM 1067 device ahci 1068 device mvs 1069 device siis 1070 , and instead add back: 1071 device atadisk # ATA disk drives 1072 device ataraid # ATA RAID drives 1073 device atapicd # ATAPI CDROM drives 1074 device atapifd # ATAPI floppy drives 1075 device atapist # ATAPI tape drives 1076 107720110423: 1078 The default NFS server has been changed to the new server, which 1079 was referred to as the experimental server. If you need to switch 1080 back to the old NFS server, you must now put the "-o" option on 1081 both the mountd and nfsd commands. This can be done using the 1082 mountd_flags and nfs_server_flags rc.conf variables until an 1083 update to the rc scripts is committed, which is coming soon. 1084 108520110418: 1086 The GNU Objective-C runtime library (libobjc), and other Objective-C 1087 related components have been removed from the base system. If you 1088 require an Objective-C library, please use one of the available ports. 1089 109020110331: 1091 ath(4) has been split into bus- and device- modules. if_ath contains 1092 the HAL, the TX rate control and the network device code. if_ath_pci 1093 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1094 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1095 in order to use ath on everything else. 1096 1097 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1098 need to load if_ath and if_ath_pci for ath(4) operation. 1099 110020110314: 1101 As part of the replacement of sysinstall, the process of building 1102 release media has changed significantly. For details, please re-read 1103 release(7), which has been updated to reflect the new build process. 1104 110520110218: 1106 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1107 is the last available version under GPLv2. It brings a number of new 1108 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1109 4.1 and SSE 4.2), better support for powerpc64, a number of new 1110 directives, and lots of other small improvements. See the ChangeLog 1111 file in contrib/binutils for the full details. 1112 111320110218: 1114 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1115 compliant, and will now use half of hash for authentication. 1116 This will break interoperability with all stacks (including all 1117 actual FreeBSD versions) who implement 1118 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1119 authentication). 1120 The only workaround with such peers is to use another HMAC 1121 algorithm for IPsec ("phase 2") authentication. 1122 112320110207: 1124 Remove the uio_yield prototype and symbol. This function has 1125 been misnamed since it was introduced and should not be 1126 globally exposed with this name. The equivalent functionality 1127 is now available using kern_yield(curthread->td_user_pri). 1128 The function remains undocumented. 1129 113020110112: 1131 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1132 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1133 for scalar sysctls is defined but disabled. Code that needs 1134 UQUAD to pass the type checking that must compile on older 1135 systems where the define is not present can check against 1136 __FreeBSD_version >= 900030. 1137 1138 The system dialog(1) has been replaced with a new version previously 1139 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1140 with the previous version, but the libdialog associated with it has 1141 a largely incompatible API. As such, the original version of libdialog 1142 will be kept temporarily as libodialog, until its base system consumers 1143 are replaced or updated. Bump __FreeBSD_version to 900030. 1144 114520110103: 1146 If you are trying to run make universe on a -stable system, and you get 1147 the following warning: 1148 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1149 unknown. config(8) likely too old." 1150 or something similar to it, then you must upgrade your -stable system 1151 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1152 stable/8) or build the config from the latest stable/8 branch and 1153 install it on your system. 1154 1155 Prior to this date, building a current universe on 8-stable system from 1156 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1157 error in the first kernel build phase. A new config on those old 1158 systems will fix that problem for older versions of -current. 1159 116020101228: 1161 The TCP stack has been modified to allow Khelp modules to interact with 1162 it via helper hook points and store per-connection data in the TCP 1163 control block. Bump __FreeBSD_version to 900029. User space tools that 1164 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1165 be recompiled. 1166 116720101114: 1168 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1169 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1170 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1171 to take advantage of it instead of using custom implementations. This 1172 means that these drivers now no longer unconditionally advertise 1173 support for flow control but only do so if flow control is a selected 1174 media option. This was implemented in the generic support that way in 1175 order to allow flow control to be switched on and off via ifconfig(8) 1176 with the PHY specific default to typically off in order to protect 1177 from unwanted effects. Consequently, if you used flow control with 1178 one of the above mentioned drivers you now need to explicitly enable 1179 it, for example via: 1180 ifconfig bge0 media auto mediaopt flowcontrol 1181 1182 Along with the above mentioned changes generic support for setting 1183 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1184 e1000phy(4) as well as ip1000phy(4) have been converted to take 1185 advantage of it. This means that these drivers now no longer take the 1186 link0 parameter for selecting master mode but the master media option 1187 has to be used instead, for example like in the following: 1188 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1189 1190 Selection of master mode now is also available with all other PHY 1191 drivers supporting 1000baseT. 1192 119320101111: 1194 The TCP stack has received a significant update to add support for 1195 modularised congestion control and generally improve the clarity of 1196 congestion control decisions. Bump __FreeBSD_version to 900025. User 1197 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1198 sockstat) need to be recompiled. 1199 120020101002: 1201 The man(1) utility has been replaced by a new version that no longer 1202 uses /etc/manpath.config. Please consult man.conf(5) for how to 1203 migrate local entries to the new format. 1204 120520100928: 1206 The copyright strings printed by login(1) and sshd(8) at the time of a 1207 new connection have been removed to follow other operating systems and 1208 upstream sshd. 1209 121020100915: 1211 A workaround for a fixed ld bug has been removed in kernel code, 1212 so make sure that your system ld is built from sources after 1213 revision 210245 from 2010-07-19 (r211583 if building head kernel 1214 on stable/8, r211584 for stable/7; both from 2010-08-21). 1215 A symptom of incorrect ld version is different addresses for 1216 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1217 121820100913: 1219 The $ipv6_prefer variable in rc.conf(5) has been split into 1220 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1221 1222 The $ip6addrctl_policy is a variable to choose a pre-defined 1223 address selection policy set by ip6addrctl(8). A value 1224 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1225 default is "AUTO". 1226 1227 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1228 flag (see an entry of 20090926) is set on an interface with no 1229 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1230 security reason. If you want IPv6 link-local address on all 1231 interfaces by default, set this to "YES". 1232 1233 The old ipv6_prefer="YES" is equivalent to 1234 ipv6_activate_all_interfaces="YES" and 1235 ip6addrctl_policy="ipv6_prefer". 1236 123720100913: 1238 DTrace has grown support for userland tracing. Due to this, DTrace is 1239 now i386 and amd64 only. 1240 dtruss(1) is now installed by default on those systems and a new 1241 kernel module is needed for userland tracing: fasttrap. 1242 No changes to your kernel config file are necessary to enable 1243 userland tracing, but you might consider adding 'STRIP=' and 1244 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1245 to have informative userland stack traces in DTrace (ustack). 1246 124720100725: 1248 The acpi_aiboost(4) driver has been removed in favor of the new 1249 aibs(4) driver. You should update your kernel configuration file. 1250 125120100722: 1252 BSD grep has been imported to the base system and it is built by 1253 default. It is completely BSD licensed, highly GNU-compatible, uses 1254 less memory than its GNU counterpart and has a small codebase. 1255 However, it is slower than its GNU counterpart, which is mostly 1256 noticeable for larger searches, for smaller ones it is measurable 1257 but not significant. The reason is complex, the most important factor 1258 is that we lack a modern and efficient regex library and GNU 1259 overcomes this by optimizing the searches internally. Future work 1260 on improving the regex performance is planned, for the meantime, 1261 users that need better performance, can build GNU grep instead by 1262 setting the WITH_GNU_GREP knob. 1263 126420100713: 1265 Due to the import of powerpc64 support, all existing powerpc kernel 1266 configuration files must be updated with a machine directive like this: 1267 machine powerpc powerpc 1268 1269 In addition, an updated config(8) is required to build powerpc kernels 1270 after this change. 1271 127220100713: 1273 A new version of ZFS (version 15) has been merged to -HEAD. 1274 This version uses a python library for the following subcommands: 1275 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1276 For full functionality of these commands the following port must 1277 be installed: sysutils/py-zfs 1278 127920100429: 1280 'vm_page's are now hashed by physical address to an array of mutexes. 1281 Currently this is only used to serialize access to hold_count. Over 1282 time the page queue mutex will be peeled away. This changes the size 1283 of pmap on every architecture. And requires all callers of vm_page_hold 1284 and vm_page_unhold to be updated. 1285 128620100402: 1287 WITH_CTF can now be specified in src.conf (not recommended, there 1288 are some problems with static executables), make.conf (would also 1289 affect ports which do not use GNU make and do not override the 1290 compile targets) or in the kernel config (via "makeoptions 1291 WITH_CTF=yes"). 1292 When WITH_CTF was specified there before this was silently ignored, 1293 so make sure that WITH_CTF is not used in places which could lead 1294 to unwanted behavior. 1295 129620100311: 1297 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1298 to allow 32-bit compatibility on non-x86 platforms. All kernel 1299 configurations on amd64 and ia64 platforms using these options must 1300 be modified accordingly. 1301 130220100113: 1303 The utmp user accounting database has been replaced with utmpx, 1304 the user accounting interface standardized by POSIX. 1305 Unfortunately the semantics of utmp and utmpx don't match, 1306 making it practically impossible to support both interfaces. 1307 The user accounting database is used by tools like finger(1), 1308 last(1), talk(1), w(1) and ac(8). 1309 1310 All applications in the base system use utmpx. This means only 1311 local binaries (e.g. from the ports tree) may still use these 1312 utmp database files. These applications must be rebuilt to make 1313 use of utmpx. 1314 1315 After the system has been upgraded, it is safe to remove the old 1316 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1317 assuming their contents is of no importance anymore. Old wtmp 1318 databases can only be used by last(1) and ac(8) after they have 1319 been converted to the new format using wtmpcvt(1). 1320 132120100108: 1322 Introduce the kernel thread "deadlock resolver" (which can be enabled 1323 via the DEADLKRES option, see NOTES for more details) and the 1324 sleepq_type() function for sleepqueues. 1325 132620091202: 1327 The rc.firewall and rc.firewall6 were unified, and 1328 rc.firewall6 and rc.d/ip6fw were removed. 1329 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1330 variables are obsoleted. Instead, the following new rc 1331 variables are added to rc.d/ipfw: 1332 1333 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1334 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1335 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1336 1337 The meanings correspond to the relevant IPv4 variables. 1338 133920091125: 1340 8.0-RELEASE. 1341 134220091113: 1343 The default terminal emulation for syscons(4) has been changed 1344 from cons25 to xterm on all platforms except pc98. This means 1345 that the /etc/ttys file needs to be updated to ensure correct 1346 operation of applications on the console. 1347 1348 The terminal emulation style can be toggled per window by using 1349 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1350 options can be used to change the compile-time default back to 1351 cons25. 1352 1353 To prevent graphical artifacts, make sure the TERM environment 1354 variable is set to match the terminal emulation that is being 1355 performed by syscons(4). 1356 135720091109: 1358 The layout of the structure ieee80211req_scan_result has changed. 1359 Applications that require wireless scan results (e.g. ifconfig(8)) 1360 from net80211 need to be recompiled. 1361 1362 Applications such as wpa_supplicant(8) may require a full world 1363 build without using NO_CLEAN in order to get synchronized with the 1364 new structure. 1365 136620091025: 1367 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1368 There's one kernel module for each firmware. Adding "device iwnfw" 1369 to the kernel configuration file means including all three firmware 1370 images inside the kernel. If you want to include just the one for 1371 your wireless card, use the devices iwn4965fw, iwn5000fw or 1372 iwn5150fw. 1373 137420090926: 1375 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1376 into rc.d/netif. The changes are the following: 1377 1378 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1379 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1380 Note that both variables need the "inet6" keyword at the head. 1381 1382 Do not set $ipv6_network_interfaces manually if you do not 1383 understand what you are doing. It is not needed in most cases. 1384 1385 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1386 they are obsolete. 1387 1388 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1389 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1390 1391 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1392 all configured interfaces have "inet6 accept_rtadv" in the 1393 $ifconfig_IF_ipv6. These are for backward compatibility. 1394 1395 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1396 functionality of interfaces with no corresponding 1397 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1398 and the default address selection policy of ip6addrctl(8) 1399 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1400 Note that if you want to configure IPv6 functionality on the 1401 disabled interfaces after boot, first you need to clear the flag by 1402 using ifconfig(8) like: 1403 1404 ifconfig em0 inet6 -ifdisabled 1405 1406 If YES, the default address selection policy is set as 1407 IPv6-preferred. 1408 1409 The default value of $ipv6_prefer is NO. 1410 1411 4. If your system need to receive Router Advertisement messages, 1412 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1413 scripts automatically invoke rtsol(8) when the interface becomes 1414 UP. The Router Advertisement messages are used for SLAAC 1415 (State-Less Address AutoConfiguration). 1416 141720090922: 1418 802.11s D3.03 support was committed. This is incompatible with the 1419 previous code, which was based on D3.0. 1420 142120090912: 1422 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1423 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1424 control whether accepting Router Advertisement messages or not. 1425 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1426 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1427 The ifconfig(8) utility now supports these flags. 1428 142920090910: 1430 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1431 mount(8) and -a option for df(1) to see them. 1432 143320090825: 1434 The old tunable hw.bus.devctl_disable has been superseded by 1435 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1436 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1437 is 1000. 1438 143920090813: 1440 Remove the option STOP_NMI. The default action is now to use NMI only 1441 for KDB via the newly introduced function stop_cpus_hard() and 1442 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1443 144420090803: 1445 The stable/8 branch created in subversion. This corresponds to the 1446 RELENG_8 branch in CVS. 1447 144820090719: 1449 Bump the shared library version numbers for all libraries that do not 1450 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1451 __FreeBSD_version to 800105. 1452 145320090714: 1454 Due to changes in the implementation of virtual network stack support, 1455 all network-related kernel modules must be recompiled. As this change 1456 breaks the ABI, bump __FreeBSD_version to 800104. 1457 145820090713: 1459 The TOE interface to the TCP syncache has been modified to remove 1460 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1461 The cxgb driver is the only TOE consumer affected by this change, and 1462 needs to be recompiled along with the kernel. As this change breaks 1463 the ABI, bump __FreeBSD_version to 800103. 1464 146520090712: 1466 Padding has been added to struct tcpcb, sackhint and tcpstat in 1467 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1468 maintaining the ABI. However, this change breaks the ABI, so bump 1469 __FreeBSD_version to 800102. User space tools that rely on the size of 1470 any of these structs (e.g. sockstat) need to be recompiled. 1471 147220090630: 1473 The NFS_LEGACYRPC option has been removed along with the old kernel 1474 RPC implementation that this option selected. Kernel configurations 1475 may need to be adjusted. 1476 147720090629: 1478 The network interface device nodes at /dev/net/<interface> have been 1479 removed. All ioctl operations can be performed the normal way using 1480 routing sockets. The kqueue functionality can generally be replaced 1481 with routing sockets. 1482 148320090628: 1484 The documentation from the FreeBSD Documentation Project (Handbook, 1485 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1486 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1487 148820090624: 1489 The ABI of various structures related to the SYSV IPC API have been 1490 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1491 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1492 800100. 1493 149420090622: 1495 Layout of struct vnet has changed as routing related variables were 1496 moved to their own Vimage module. Modules need to be recompiled. Bump 1497 __FreeBSD_version to 800099. 1498 149920090619: 1500 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1501 respectively. As long as no more than 16 groups per process are used, 1502 no changes should be visible. When more than 16 groups are used, old 1503 binaries may fail if they call getgroups() or getgrouplist() with 1504 statically sized storage. Recompiling will work around this, but 1505 applications should be modified to use dynamically allocated storage 1506 for group arrays as POSIX.1-2008 does not cap an implementation's 1507 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1508 1509 NFS and portalfs mounts may also be affected as the list of groups is 1510 truncated to 16. Users of NFS who use more than 16 groups, should 1511 take care that negative group permissions are not used on the exported 1512 file systems as they will not be reliable unless a GSSAPI based 1513 authentication method is used. 1514 151520090616: 1516 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1517 option compiles in the support for adaptive spinning for lockmgrs 1518 which want to enable it. The lockinit() function now accepts the flag 1519 LK_ADAPTIVE in order to make the lock object subject to adaptive 1520 spinning when both held in write and read mode. 1521 152220090613: 1523 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1524 changed. User applications that use this ioctl need to be rebuilt. 1525 152620090611: 1527 The layout of struct thread has changed. Kernel and modules need to 1528 be rebuilt. 1529 153020090608: 1531 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1532 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1533 153420090602: 1535 window(1) has been removed from the base system. It can now be 1536 installed from ports. The port is called misc/window. 1537 153820090601: 1539 The way we are storing and accessing `routing table' entries has 1540 changed. Programs reading the FIB, like netstat, need to be 1541 re-compiled. 1542 154320090601: 1544 A new netisr implementation has been added for FreeBSD 8. Network 1545 file system modules, such as igmp, ipdivert, and others, should be 1546 rebuilt. 1547 Bump __FreeBSD_version to 800096. 1548 154920090530: 1550 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1551 more valid. 1552 155320090530: 1554 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1555 Bump __FreeBSD_version to 800094. 1556 155720090529: 1558 Add mnt_xflag field to 'struct mount'. File system modules need to be 1559 rebuilt. 1560 Bump __FreeBSD_version to 800093. 1561 156220090528: 1563 The compiling option ADAPTIVE_SX has been retired while it has been 1564 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1565 The KPI for sx_init_flags() changes as accepting flags: 1566 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1567 been introduced in order to handle the reversed logic. 1568 Bump __FreeBSD_version to 800092. 1569 157020090527: 1571 Add support for hierarchical jails. Remove global securelevel. 1572 Bump __FreeBSD_version to 800091. 1573 157420090523: 1575 The layout of struct vnet_net has changed, therefore modules 1576 need to be rebuilt. 1577 Bump __FreeBSD_version to 800090. 1578 157920090523: 1580 The newly imported zic(8) produces a new format in the output. Please 1581 run tzsetup(8) to install the newly created data to /etc/localtime. 1582 158320090520: 1584 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1585 hw.usb.* and is now consistent again with previous releases. 1586 158720090520: 1588 802.11 monitor mode support was revised and driver api's were changed. 1589 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1590 of DLT_IEEE802_11. No user-visible data structures were changed but 1591 applications that use DLT_IEEE802_11 may require changes. 1592 Bump __FreeBSD_version to 800088. 1593 159420090430: 1595 The layout of the following structs has changed: sysctl_oid, 1596 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1597 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1598 panics may be experienced. World rebuild is required for 1599 correctly checking networking state from userland. 1600 Bump __FreeBSD_version to 800085. 1601 160220090429: 1603 MLDv2 and Source-Specific Multicast (SSM) have been merged 1604 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1605 The implementation of SSM within FreeBSD's IPv6 stack closely 1606 follows the IPv4 implementation. 1607 1608 For kernel developers: 1609 1610 * The most important changes are that the ip6_output() and 1611 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1612 and this lock has been downgraded to a non-recursive mutex. 1613 1614 * As with the changes to the IPv4 stack to support SSM, filtering 1615 of inbound multicast traffic must now be performed by transport 1616 protocols within the IPv6 stack. This does not apply to TCP and 1617 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1618 1619 * The KPIs used by IPv6 multicast are similar to those used by 1620 the IPv4 stack, with the following differences: 1621 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1622 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1623 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1624 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1625 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1626 for MLDv1 have an additional 'timer' argument which is used to 1627 jitter the initial membership report for the solicited-node 1628 multicast membership on-link. 1629 * This is not strictly needed for MLDv2, which already jitters 1630 its report transmissions. However, the 'timer' argument is 1631 preserved in case MLDv1 is active on the interface. 1632 1633 * The KAME linked-list based IPv6 membership implementation has 1634 been refactored to use a vector similar to that used by the IPv4 1635 stack. 1636 Code which maintains a list of its own multicast memberships 1637 internally, e.g. carp, has been updated to reflect the new 1638 semantics. 1639 1640 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1641 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1642 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1643 implementation constraint which needs to be addressed in HEAD. 1644 1645 For application developers: 1646 1647 * The changes are broadly similar to those made for the IPv4 1648 stack. 1649 1650 * The use of IPv4 and IPv6 multicast socket options on the same 1651 socket, using mapped addresses, HAS NOT been tested or supported. 1652 1653 * There are a number of issues with the implementation of various 1654 IPv6 multicast APIs which need to be resolved in the API surface 1655 before the implementation is fully compatible with KAME userland 1656 use, and these are mostly to do with interface index treatment. 1657 1658 * The literature available discusses the use of either the delta / ASM 1659 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1660 using setsourcefilter(3)/getsourcefilter(3). For more information 1661 please refer to RFC 3768, 'Socket Interface Extensions for 1662 Multicast Source Filters'. 1663 1664 * Applications which use the published RFC 3678 APIs should be fine. 1665 1666 For systems administrators: 1667 1668 * The mtest(8) utility has been refactored to support IPv6, in 1669 addition to IPv4. Interface addresses are no longer accepted 1670 as arguments, their names must be used instead. The utility 1671 will map the interface name to its first IPv4 address as 1672 returned by getifaddrs(3). 1673 1674 * The ifmcstat(8) utility has also been updated to print the MLDv2 1675 endpoint state and source filter lists via sysctl(3). 1676 1677 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1678 loopback of IPv6 multicast datagrams by default; it defaults to 1 1679 to preserve the existing behaviour. Disabling multicast loopback is 1680 recommended for optimal system performance. 1681 1682 * The IPv6 MROUTING code has been changed to examine this sysctl 1683 instead of attempting to perform a group lookup before looping 1684 back forwarded datagrams. 1685 1686 Bump __FreeBSD_version to 800084. 1687 168820090422: 1689 Implement low-level Bluetooth HCI API. 1690 Bump __FreeBSD_version to 800083. 1691 169220090419: 1693 The layout of struct malloc_type, used by modules to register new 1694 memory allocation types, has changed. Most modules will need to 1695 be rebuilt or panics may be experienced. 1696 Bump __FreeBSD_version to 800081. 1697 169820090415: 1699 Anticipate overflowing inp_flags - add inp_flags2. 1700 This changes most offsets in inpcb, so checking v4 connection 1701 state will require a world rebuild. 1702 Bump __FreeBSD_version to 800080. 1703 170420090415: 1705 Add an llentry to struct route and struct route_in6. Modules 1706 embedding a struct route will need to be recompiled. 1707 Bump __FreeBSD_version to 800079. 1708 170920090414: 1710 The size of rt_metrics_lite and by extension rtentry has changed. 1711 Networking administration apps will need to be recompiled. 1712 The route command now supports show as an alias for get, weighting 1713 of routes, sticky and nostick flags to alter the behavior of stateful 1714 load balancing. 1715 Bump __FreeBSD_version to 800078. 1716 171720090408: 1718 Do not use Giant for kbdmux(4) locking. This is wrong and 1719 apparently causing more problems than it solves. This will 1720 re-open the issue where interrupt handlers may race with 1721 kbdmux(4) in polling mode. Typical symptoms include (but 1722 not limited to) duplicated and/or missing characters when 1723 low level console functions (such as gets) are used while 1724 interrupts are enabled (for example geli password prompt, 1725 mountroot prompt etc.). Disabling kbdmux(4) may help. 1726 172720090407: 1728 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1729 kernel modules referencing any of the above need to be recompiled. 1730 Bump __FreeBSD_version to 800075. 1731 173220090320: 1733 GEOM_PART has become the default partition slicer for storage devices, 1734 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1735 introduces some changes: 1736 1737 MSDOS/EBR: the devices created from MSDOS extended partition entries 1738 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1739 to devices with offset-based names. fstabs may need to be modified. 1740 1741 BSD: the "geometry does not match label" warning is harmless in most 1742 cases but it points to problems in file system misalignment with 1743 disk geometry. The "c" partition is now implicit, covers the whole 1744 top-level drive and cannot be (mis)used by users. 1745 1746 General: Kernel dumps are now not allowed to be written to devices 1747 whose partition types indicate they are meant to be used for file 1748 systems (or, in case of MSDOS partitions, as something else than 1749 the "386BSD" type). 1750 1751 Most of these changes date approximately from 200812. 1752 175320090319: 1754 The uscanner(4) driver has been removed from the kernel. This follows 1755 Linux removing theirs in 2.6 and making libusb the default interface 1756 (supported by sane). 1757 175820090319: 1759 The multicast forwarding code has been cleaned up. netstat(1) 1760 only relies on KVM now for printing bandwidth upcall meters. 1761 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1762 ip6_mroute_mod respectively. The config(5) options for statically 1763 compiling this code remain the same, i.e. 'options MROUTING'. 1764 176520090315: 1766 Support for the IFF_NEEDSGIANT network interface flag has been 1767 removed, which means that non-MPSAFE network device drivers are no 1768 longer supported. In particular, if_ar, if_sr, and network device 1769 drivers from the old (legacy) USB stack can no longer be built or 1770 used. 1771 177220090313: 1773 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1774 a bunch of new language catalog files have also been added. 1775 This means that some common libc messages are now localized and 1776 they depend on the LC_MESSAGES environmental variable. 1777 177820090313: 1779 The k8temp(4) driver has been renamed to amdtemp(4) since 1780 support for Family 10 and Family 11 CPU families was added. 1781 178220090309: 1783 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1784 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1785 1786 For kernel developers, the most important changes are that the 1787 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1788 and this lock has been downgraded to a non-recursive mutex. 1789 1790 Transport protocols (UDP, Raw IP) are now responsible for filtering 1791 inbound multicast traffic according to group membership and source 1792 filters. The imo_multicast_filter() KPI exists for this purpose. 1793 Transports which do not use multicast (SCTP, TCP) already reject 1794 multicast by default. Forwarding and receive performance may improve 1795 as a mutex acquisition is no longer needed in the ip_input() 1796 low-level input path. in_addmulti() and in_delmulti() are shimmed 1797 to new KPIs which exist to support SSM in-kernel. 1798 1799 For application developers, it is recommended that loopback of 1800 multicast datagrams be disabled for best performance, as this 1801 will still cause the lock to be taken for each looped-back 1802 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1803 be tuned to 0 to disable loopback by default; it defaults to 1 1804 to preserve the existing behaviour. 1805 1806 For systems administrators, to obtain best performance with 1807 multicast reception and multiple groups, it is always recommended 1808 that a card with a suitably precise hash filter is used. Hash 1809 collisions will still result in the lock being taken within the 1810 transport protocol input path to check group membership. 1811 1812 If deploying FreeBSD in an environment with IGMP snooping switches, 1813 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1814 enabled; this forces 224.0.0.0/24 group membership to be announced 1815 via IGMP. 1816 1817 The size of 'struct igmpstat' has changed; netstat needs to be 1818 recompiled to reflect this. 1819 Bump __FreeBSD_version to 800070. 1820 182120090309: 1822 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1823 updated to use it. This requires a buildworld/installworld in order to 1824 update the library and dependencies (usbconfig, etc). Its advisable to 1825 rebuild all ports which uses libusb. More specific directions are given 1826 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1827 libusb are no longer required and can be removed. 1828 182920090302: 1830 A workaround is committed to allow the creation of System V shared 1831 memory segment of size > 2 GB on the 64-bit architectures. 1832 Due to a limitation of the existing ABI, the shm_segsz member 1833 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1834 wrong for large segments. Note that limits must be explicitly 1835 raised to allow such segments to be created. 1836 183720090301: 1838 The layout of struct ifnet has changed, requiring a rebuild of all 1839 network device driver modules. 1840 184120090227: 1842 The /dev handling for the new USB stack has changed, a 1843 buildworld/installworld is required for libusb20. 1844 184520090223: 1846 The new USB2 stack has now been permanently moved in and all kernel and 1847 module names reverted to their previous values (eg, usb, ehci, ohci, 1848 ums, ...). The old usb stack can be compiled in by prefixing the name 1849 with the letter 'o', the old usb modules have been removed. 1850 Updating entry 20090216 for xorg and 20090215 for libmap may still 1851 apply. 1852 185320090217: 1854 The rc.conf(5) option if_up_delay has been renamed to 1855 defaultroute_delay to better reflect its purpose. If you have 1856 customized this setting in /etc/rc.conf you need to update it to 1857 use the new name. 1858 185920090216: 1860 xorg 7.4 wants to configure its input devices via hald which does not 1861 yet work with USB2. If the keyboard/mouse does not work in xorg then 1862 add 1863 Option "AllowEmptyInput" "off" 1864 to your ServerLayout section. This will cause X to use the configured 1865 kbd and mouse sections from your xorg.conf. 1866 186720090215: 1868 The GENERIC kernels for all architectures now default to the new USB2 1869 stack. No kernel config options or code have been removed so if a 1870 problem arises please report it and optionally revert to the old USB 1871 stack. If you are loading USB kernel modules or have a custom kernel 1872 that includes GENERIC then ensure that usb names are also changed over, 1873 eg uftdi -> usb2_serial_ftdi. 1874 1875 Older programs linked against the ports libusb 0.1 need to be 1876 redirected to the new stack's libusb20. /etc/libmap.conf can 1877 be used for this: 1878 # Map old usb library to new one for usb2 stack 1879 libusb-0.1.so.8 libusb20.so.1 1880 188120090209: 1882 All USB ethernet devices now attach as interfaces under the name ueN 1883 (eg. ue0). This is to provide a predictable name as vendors often 1884 change usb chipsets in a product without notice. 1885 188620090203: 1887 The ichsmb(4) driver has been changed to require SMBus slave 1888 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1889 All of the other SMBus controller drivers require left-justified 1890 slave addresses, so this change makes all the drivers provide the 1891 same interface. 1892 189320090201: 1894 INET6 statistics (struct ip6stat) was updated. 1895 netstat(1) needs to be recompiled. 1896 189720090119: 1898 NTFS has been removed from GENERIC kernel on amd64 to match 1899 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1900 will load ntfs.ko module automatically when NTFS support is 1901 actually needed, unless ntfs.ko is not installed or security 1902 level prohibits loading kernel modules. If either is the case, 1903 "options NTFS" has to be added into kernel config. 1904 190520090115: 1906 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1907 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1908 800061. User space tools that rely on the size of struct tcpcb in 1909 tcp_var.h (e.g. sockstat) need to be recompiled. 1910 191120081225: 1912 ng_tty(4) module updated to match the new TTY subsystem. 1913 Due to API change, user-level applications must be updated. 1914 New API support added to mpd5 CVS and expected to be present 1915 in next mpd5.3 release. 1916 191720081219: 1918 With __FreeBSD_version 800060 the makefs tool is part of 1919 the base system (it was a port). 1920 192120081216: 1922 The afdata and ifnet locks have been changed from mutexes to 1923 rwlocks, network modules will need to be re-compiled. 1924 192520081214: 1926 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1927 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1928 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1929 architecture and 40 bytes on 64-bit architecture. The userland 1930 applications "arp" and "ndp" have been updated accordingly. 1931 The output from "netstat -r" shows only routing entries and 1932 none of the L2 information. 1933 193420081130: 1935 __FreeBSD_version 800057 marks the switchover from the 1936 binary ath hal to source code. Users must add the line: 1937 1938 options AH_SUPPORT_AR5416 1939 1940 to their kernel config files when specifying: 1941 1942 device ath_hal 1943 1944 The ath_hal module no longer exists; the code is now compiled 1945 together with the driver in the ath module. It is now 1946 possible to tailor chip support (i.e. reduce the set of chips 1947 and thereby the code size); consult ath_hal(4) for details. 1948 194920081121: 1950 __FreeBSD_version 800054 adds memory barriers to 1951 <machine/atomic.h>, new interfaces to ifnet to facilitate 1952 multiple hardware transmit queues for cards that support 1953 them, and a lock-less ring-buffer implementation to 1954 enable drivers to more efficiently manage queueing of 1955 packets. 1956 195720081117: 1958 A new version of ZFS (version 13) has been merged to -HEAD. 1959 This version has zpool attribute "listsnapshots" off by 1960 default, which means "zfs list" does not show snapshots, 1961 and is the same as Solaris behavior. 1962 196320081028: 1964 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1965 196620081009: 1967 The uhci, ohci, ehci and slhci USB Host controller drivers have 1968 been put into separate modules. If you load the usb module 1969 separately through loader.conf you will need to load the 1970 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1971 controller add the following to loader.conf: 1972 1973 uhci_load="YES" 1974 ehci_load="YES" 1975 197620081009: 1977 The ABI used by the PMC toolset has changed. Please keep 1978 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1979 sync. 1980 198120081009: 1982 atapci kernel module now includes only generic PCI ATA 1983 driver. AHCI driver moved to ataahci kernel module. 1984 All vendor-specific code moved into separate kernel modules: 1985 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1986 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1987 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1988 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1989 199020080820: 1991 The TTY subsystem of the kernel has been replaced by a new 1992 implementation, which provides better scalability and an 1993 improved driver model. Most common drivers have been migrated to 1994 the new TTY subsystem, while others have not. The following 1995 drivers have not yet been ported to the new TTY layer: 1996 1997 PCI/ISA: 1998 cy, digi, rc, rp, sio 1999 2000 USB: 2001 ubser, ucycom 2002 2003 Line disciplines: 2004 ng_h4, ng_tty, ppp, sl, snp 2005 2006 Adding these drivers to your kernel configuration file shall 2007 cause compilation to fail. 2008 200920080818: 2010 ntpd has been upgraded to 4.2.4p5. 2011 201220080801: 2013 OpenSSH has been upgraded to 5.1p1. 2014 2015 For many years, FreeBSD's version of OpenSSH preferred DSA 2016 over RSA for host and user authentication keys. With this 2017 upgrade, we've switched to the vendor's default of RSA over 2018 DSA. This may cause upgraded clients to warn about unknown 2019 host keys even for previously known hosts. Users should 2020 follow the usual procedure for verifying host keys before 2021 accepting the RSA key. 2022 2023 This can be circumvented by setting the "HostKeyAlgorithms" 2024 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 2025 command line. 2026 2027 Please note that the sequence of keys offered for 2028 authentication has been changed as well. You may want to 2029 specify IdentityFile in a different order to revert this 2030 behavior. 2031 203220080713: 2033 The sio(4) driver has been removed from the i386 and amd64 2034 kernel configuration files. This means uart(4) is now the 2035 default serial port driver on those platforms as well. 2036 2037 To prevent collisions with the sio(4) driver, the uart(4) driver 2038 uses different names for its device nodes. This means the 2039 onboard serial port will now most likely be called "ttyu0" 2040 instead of "ttyd0". You may need to reconfigure applications to 2041 use the new device names. 2042 2043 When using the serial port as a boot console, be sure to update 2044 /boot/device.hints and /etc/ttys before booting the new kernel. 2045 If you forget to do so, you can still manually specify the hints 2046 at the loader prompt: 2047 2048 set hint.uart.0.at="isa" 2049 set hint.uart.0.port="0x3F8" 2050 set hint.uart.0.flags="0x10" 2051 set hint.uart.0.irq="4" 2052 boot -s 2053 205420080609: 2055 The gpt(8) utility has been removed. Use gpart(8) to partition 2056 disks instead. 2057 205820080603: 2059 The version that Linuxulator emulates was changed from 2.4.2 2060 to 2.6.16. If you experience any problems with Linux binaries 2061 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2062 if it fixes the problem contact emulation mailing list. 2063 206420080525: 2065 ISDN4BSD (I4B) was removed from the src tree. You may need to 2066 update a your kernel configuration and remove relevant entries. 2067 206820080509: 2069 I have checked in code to support multiple routing tables. 2070 See the man pages setfib(1) and setfib(2). 2071 This is a hopefully backwards compatible version, 2072 but to make use of it you need to compile your kernel 2073 with options ROUTETABLES=2 (or more up to 16). 2074 207520080420: 2076 The 802.11 wireless support was redone to enable multi-bss 2077 operation on devices that are capable. The underlying device 2078 is no longer used directly but instead wlanX devices are 2079 cloned with ifconfig. This requires changes to rc.conf files. 2080 For example, change: 2081 ifconfig_ath0="WPA DHCP" 2082 to 2083 wlans_ath0=wlan0 2084 ifconfig_wlan0="WPA DHCP" 2085 see rc.conf(5) for more details. In addition, mergemaster of 2086 /etc/rc.d is highly recommended. Simultaneous update of userland 2087 and kernel wouldn't hurt either. 2088 2089 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2090 modules were merged into the base wlan module. All references 2091 to these modules (e.g. in kernel config files) must be removed. 2092 209320080408: 2094 psm(4) has gained write(2) support in native operation level. 2095 Arbitrary commands can be written to /dev/psm%d and status can 2096 be read back from it. Therefore, an application is responsible 2097 for status validation and error recovery. It is a no-op in 2098 other operation levels. 2099 210020080312: 2101 Support for KSE threading has been removed from the kernel. To 2102 run legacy applications linked against KSE libmap.conf may 2103 be used. The following libmap.conf may be used to ensure 2104 compatibility with any prior release: 2105 2106 libpthread.so.1 libthr.so.1 2107 libpthread.so.2 libthr.so.2 2108 libkse.so.3 libthr.so.3 2109 211020080301: 2111 The layout of struct vmspace has changed. This affects libkvm 2112 and any executables that link against libkvm and use the 2113 kvm_getprocs() function. In particular, but not exclusively, 2114 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2115 The effects are minimal, but it's advisable to upgrade world 2116 nonetheless. 2117 211820080229: 2119 The latest em driver no longer has support in it for the 2120 82575 adapter, this is now moved to the igb driver. The 2121 split was done to make new features that are incompatible 2122 with older hardware easier to do. 2123 212420080220: 2125 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2126 likewise the kernel option is now GEOM_LINUX_LVM. 2127 212820080211: 2129 The default NFS mount mode has changed from UDP to TCP for 2130 increased reliability. If you rely on (insecurely) NFS 2131 mounting across a firewall you may need to update your 2132 firewall rules. 2133 213420080208: 2135 Belatedly note the addition of m_collapse for compacting 2136 mbuf chains. 2137 213820080126: 2139 The fts(3) structures have been changed to use adequate 2140 integer types for their members and so to be able to cope 2141 with huge file trees. The old fts(3) ABI is preserved 2142 through symbol versioning in libc, so third-party binaries 2143 using fts(3) should still work, although they will not take 2144 advantage of the extended types. At the same time, some 2145 third-party software might fail to build after this change 2146 due to unportable assumptions made in its source code about 2147 fts(3) structure members. Such software should be fixed 2148 by its vendor or, in the worst case, in the ports tree. 2149 FreeBSD_version 800015 marks this change for the unlikely 2150 case that a portable fix is impossible. 2151 215220080123: 2153 To upgrade to -current after this date, you must be running 2154 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2155 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2156 215720071128: 2158 The ADAPTIVE_GIANT kernel option has been retired because its 2159 functionality is the default now. 2160 216120071118: 2162 The AT keyboard emulation of sunkbd(4) has been turned on 2163 by default. In order to make the special symbols of the Sun 2164 keyboards driven by sunkbd(4) work under X these now have 2165 to be configured the same way as Sun USB keyboards driven 2166 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2167 2168 Option "XkbLayout" "us" 2169 Option "XkbRules" "xorg" 2170 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2171 217220071024: 2173 It has been decided that it is desirable to provide ABI 2174 backwards compatibility to the FreeBSD 4/5/6 versions of the 2175 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2176 broken with the introduction of PCI domain support (see the 2177 20070930 entry). Unfortunately, this required the ABI of 2178 PCIOCGETCONF to be broken again in order to be able to 2179 provide backwards compatibility to the old version of that 2180 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2181 again. As for prominent ports this affects neither pciutils 2182 nor xorg-server this time, the hal port needs to be rebuilt 2183 however. 2184 218520071020: 2186 The misnamed kthread_create() and friends have been renamed 2187 to kproc_create() etc. Many of the callers already 2188 used kproc_start().. 2189 I will return kthread_create() and friends in a while 2190 with implementations that actually create threads, not procs. 2191 Renaming corresponds with version 800002. 2192 219320071010: 2194 RELENG_7 branched. 2195 2196COMMON ITEMS: 2197 2198 General Notes 2199 ------------- 2200 Avoid using make -j when upgrading. While generally safe, there are 2201 sometimes problems using -j to upgrade. If your upgrade fails with 2202 -j, please try again without -j. From time to time in the past there 2203 have been problems using -j with buildworld and/or installworld. This 2204 is especially true when upgrading between "distant" versions (eg one 2205 that cross a major release boundary or several minor releases, or when 2206 several months have passed on the -current branch). 2207 2208 Sometimes, obscure build problems are the result of environment 2209 poisoning. This can happen because the make utility reads its 2210 environment when searching for values for global variables. To run 2211 your build attempts in an "environmental clean room", prefix all make 2212 commands with 'env -i '. See the env(1) manual page for more details. 2213 2214 When upgrading from one major version to another it is generally best 2215 to upgrade to the latest code in the currently installed branch first, 2216 then do an upgrade to the new branch. This is the best-tested upgrade 2217 path, and has the highest probability of being successful. Please try 2218 this approach before reporting problems with a major version upgrade. 2219 2220 When upgrading a live system, having a root shell around before 2221 installing anything can help undo problems. Not having a root shell 2222 around can lead to problems if pam has changed too much from your 2223 starting point to allow continued authentication after the upgrade. 2224 2225 ZFS notes 2226 --------- 2227 When upgrading the boot ZFS pool to a new version, always follow 2228 these two steps: 2229 2230 1.) recompile and reinstall the ZFS boot loader and boot block 2231 (this is part of "make buildworld" and "make installworld") 2232 2233 2.) update the ZFS boot block on your boot drive 2234 2235 The following example updates the ZFS boot block on the first 2236 partition (freebsd-boot) of a GPT partitioned drive ad0: 2237 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2238 2239 Non-boot pools do not need these updates. 2240 2241 To build a kernel 2242 ----------------- 2243 If you are updating from a prior version of FreeBSD (even one just 2244 a few days old), you should follow this procedure. It is the most 2245 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2246 2247 make kernel-toolchain 2248 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2249 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2250 2251 To test a kernel once 2252 --------------------- 2253 If you just want to boot a kernel once (because you are not sure 2254 if it works, or if you want to boot a known bad kernel to provide 2255 debugging information) run 2256 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2257 nextboot -k testkernel 2258 2259 To just build a kernel when you know that it won't mess you up 2260 -------------------------------------------------------------- 2261 This assumes you are already running a CURRENT system. Replace 2262 ${arch} with the architecture of your machine (e.g. "i386", 2263 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2264 2265 cd src/sys/${arch}/conf 2266 config KERNEL_NAME_HERE 2267 cd ../compile/KERNEL_NAME_HERE 2268 make depend 2269 make 2270 make install 2271 2272 If this fails, go to the "To build a kernel" section. 2273 2274 To rebuild everything and install it on the current system. 2275 ----------------------------------------------------------- 2276 # Note: sometimes if you are running current you gotta do more than 2277 # is listed here if you are upgrading from a really old current. 2278 2279 <make sure you have good level 0 dumps> 2280 make buildworld 2281 make kernel KERNCONF=YOUR_KERNEL_HERE 2282 [1] 2283 <reboot in single user> [3] 2284 mergemaster -p [5] 2285 make installworld 2286 mergemaster -i [4] 2287 make delete-old [6] 2288 <reboot> 2289 2290 To cross-install current onto a separate partition 2291 -------------------------------------------------- 2292 # In this approach we use a separate partition to hold 2293 # current's root, 'usr', and 'var' directories. A partition 2294 # holding "/", "/usr" and "/var" should be about 2GB in 2295 # size. 2296 2297 <make sure you have good level 0 dumps> 2298 <boot into -stable> 2299 make buildworld 2300 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2301 <maybe newfs current's root partition> 2302 <mount current's root partition on directory ${CURRENT_ROOT}> 2303 make installworld DESTDIR=${CURRENT_ROOT} 2304 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2305 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2306 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2307 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2308 <reboot into current> 2309 <do a "native" rebuild/install as described in the previous section> 2310 <maybe install compatibility libraries from ports/misc/compat*> 2311 <reboot> 2312 2313 2314 To upgrade in-place from stable to current 2315 ---------------------------------------------- 2316 <make sure you have good level 0 dumps> 2317 make buildworld [9] 2318 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2319 [1] 2320 <reboot in single user> [3] 2321 mergemaster -p [5] 2322 make installworld 2323 mergemaster -i [4] 2324 make delete-old [6] 2325 <reboot> 2326 2327 Make sure that you've read the UPDATING file to understand the 2328 tweaks to various things you need. At this point in the life 2329 cycle of current, things change often and you are on your own 2330 to cope. The defaults can also change, so please read ALL of 2331 the UPDATING entries. 2332 2333 Also, if you are tracking -current, you must be subscribed to 2334 freebsd-current@freebsd.org. Make sure that before you update 2335 your sources that you have read and understood all the recent 2336 messages there. If in doubt, please track -stable which has 2337 much fewer pitfalls. 2338 2339 [1] If you have third party modules, such as vmware, you 2340 should disable them at this point so they don't crash your 2341 system on reboot. 2342 2343 [3] From the bootblocks, boot -s, and then do 2344 fsck -p 2345 mount -u / 2346 mount -a 2347 cd src 2348 adjkerntz -i # if CMOS is wall time 2349 Also, when doing a major release upgrade, it is required that 2350 you boot into single user mode to do the installworld. 2351 2352 [4] Note: This step is non-optional. Failure to do this step 2353 can result in a significant reduction in the functionality of the 2354 system. Attempting to do it by hand is not recommended and those 2355 that pursue this avenue should read this file carefully, as well 2356 as the archives of freebsd-current and freebsd-hackers mailing lists 2357 for potential gotchas. The -U option is also useful to consider. 2358 See mergemaster(8) for more information. 2359 2360 [5] Usually this step is a noop. However, from time to time 2361 you may need to do this if you get unknown user in the following 2362 step. It never hurts to do it all the time. You may need to 2363 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2364 install) after the buildworld before this step if you last updated 2365 from current before 20130425 or from -stable before 20130430. 2366 2367 [6] This only deletes old files and directories. Old libraries 2368 can be deleted by "make delete-old-libs", but you have to make 2369 sure that no program is using those libraries anymore. 2370 2371 [8] In order to have a kernel that can run the 4.x binaries needed to 2372 do an installworld, you must include the COMPAT_FREEBSD4 option in 2373 your kernel. Failure to do so may leave you with a system that is 2374 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2375 required to run the 5.x binaries on more recent kernels. And so on 2376 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2377 2378 Make sure that you merge any new devices from GENERIC since the 2379 last time you updated your kernel config file. 2380 2381 [9] When checking out sources, you must include the -P flag to have 2382 cvs prune empty directories. 2383 2384 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2385 "?=" instead of the "=" assignment operator, so that buildworld can 2386 override the CPUTYPE if it needs to. 2387 2388 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2389 not on the command line, or in /etc/make.conf. buildworld will 2390 warn if it is improperly defined. 2391FORMAT: 2392 2393This file contains a list, in reverse chronological order, of major 2394breakages in tracking -current. It is not guaranteed to be a complete 2395list of such breakages, and only contains entries since October 10, 2007. 2396If you need to see UPDATING entries from before that date, you will need 2397to fetch an UPDATING file from an older FreeBSD release. 2398 2399Copyright information: 2400 2401Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2402 2403Redistribution, publication, translation and use, with or without 2404modification, in full or in part, in any form or format of this 2405document are permitted without further permission from the author. 2406 2407THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2408IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2409WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2410DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2411INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2412(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2413SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2414HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2415STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2416IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2417POSSIBILITY OF SUCH DAMAGE. 2418 2419Contact Warner Losh if you have any questions about your use of 2420this document. 2421 2422$FreeBSD: releng/10.2/UPDATING 310419 2016-12-22 16:19:05Z delphij $ 2423