UPDATING revision 306230
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 1920160923 p38 FreeBSD-SA-16:26.openssl 20 21 Fix multiple OpenSSL vulnerabilitites. 22 2320160725 p37 FreeBSD-SA-16:25.bspatch 24 FreeBSD-EN-16:09.freebsd-update 25 26 Fix bspatch heap overflow vulnerability. [SA-16:25] 27 28 Fix freebsd-update(8) support of FreeBSD 11.0 release 29 distribution. [EN-16:09] 30 3120160604 p36 FreeBSD-SA-16:24.ntp 32 33 Fix multiple vulnerabilities of ntp. 34 3520160531 p35 FreeBSD-SA-16:20.linux 36 FreeBSD-SA-16:21.43bsd 37 FreeBSD-SA-16:22.libarchive 38 39 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 40 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 41 Fix directory traversal in cpio(1). [SA-16:22] 42 4320160517 p34 FreeBSD-SA-16:18.atkbd 44 FreeBSD-SA-16:19.sendmsg 45 46 Fix buffer overflow in keyboard driver. [SA-16:18] 47 48 Fix incorrect argument handling in sendmsg(2). [SA-16:19] 49 5020160504 p33 FreeBSD-SA-16:17.openssl 51 FreeBSD-EN-16:08.zfs 52 53 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 54 55 Fix memory leak in ZFS. [EN-16:08] 56 5720160429 p32 FreeBSD-SA-16:16.ntp 58 59 Fix multiple vulnerabilities of ntp. 60 6120160316 p31 FreeBSD-SA-16:14.openssh-xauth 62 FreeBSD-SA-16:15.sysarch 63 FreeBSD-EN-16:04.hyperv 64 65 Fix OpenSSH xauth(1) command injection. [SA-16:14] 66 Fix incorrect argument validation in sysarch(2). [SA-16:15] 67 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04] 68 6920160303 p30 FreeBSD-SA-16:12.openssl 70 71 Fix multiple vulnerabilities of OpenSSL. 72 7320160130 p29 FreeBSD-SA-16:11.openssl 74 75 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 76 7720160127 p28 FreeBSD-SA-16:09.ntp 78 FreeBSD-SA-16:10.linux 79 80 Fix multiple vulnerabilities of ntp. [SA-16:09] 81 82 Fix Linux compatibility layer issetugid(2) system call 83 vulnerability. [SA-16:10] 84 8520160114 p27 FreeBSD-SA-16:07.openssh 86 87 Fix OpenSSH client information leak. [SA-16:07] 88 8920160114 p26 FreeBSD-EN-16:02.pf 90 FreeBSD-EN-16:03.yplib 91 FreeBSD-SA-16:01.sctp 92 FreeBSD-SA-16:02.ntp 93 FreeBSD-SA-16:03.linux 94 FreeBSD-SA-16:04.linux 95 FreeBSD-SA-16:05.tcp 96 FreeBSD-SA-16:06.bsnmpd 97 98 Fix pf(4) generating bad TCP checksums. [EN-16:02] 99 Fix infinite loop in YP/NIS client library. [EN-16:03] 100 Fix remote denial of service in SCTP. [SA-16:01] 101 Update NTP to 4.2.8p5. [SA-16:02] 102 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 103 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 104 Fix crash in TCP MD5 signatures. [SA-16:05] 105 Fix insecure default permissions for snmpd.config. [SA-16:06] 106 10720151205 p25 FreeBSD-SA-15:26.openssl 108 109 Fix multiple OpenSSL vulnerabilities. [SA-15:26] 110 11120151104 p24 FreeBSD-SA-15:25.ntp [revised] 112 FreeBSD-EN-15:19.kqueue 113 FreeBSD-EN-15:20.vm 114 115 Fix regression in ntpd(8) lacking support for RAWDCF reference 116 clock in 10.1-RELEASE-p23. [SA-15:25.ntp] 117 118 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 119 120 Fix applications exiting due to segmentation violation on a correct 121 memory address. [EN-15:20] 122 12320151026: p23 FreeBSD-SA-15:25.ntp 124 125 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 126 127 The configuration file syntax has been changed, thus mergemaster 128 run is recommended. Now the "kod" parameter requires "limited" 129 parameter. If the ntp.conf is not updated, the ntpd will run 130 successfully, but with KoD disabled. 131 13220151002: p22 FreeBSD-SA-15:24.rpcbind [revised] 133 Revised patch to address a regression that prevents NIS from working. 134 13520150929: p21 FreeBSD-SA-15:24.rpcbind 136 137 Fix rpcbind(8) remote denial of service. [SA-15:24] 138 13920150916: p20 FreeBSD-EN-15:18.pkg 140 141 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 142 14320150825: p19 FreeBSD-SA-15:21.amd64 144 FreeBSD-SA-15:22.openssh 145 FreeBSD-EN-15:14.ixgbe 146 FreeBSD-EN-15:15.pkg 147 148 Fix local privilege escalation in IRET handler. [SA-15:21] 149 150 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 151 152 Disabled ixgbe(4) flow-director support. [EN-15:14] 153 154 Fix insufficient check of unsupported pkg(7) signature methods. 155 [EN-15:15] 156 15720150818: p18 FreeBSD-SA-15:20.expat 158 159 Fix multiple integer overflows in expat (libbsdxml) XML parser. 160 [SA-15:20] 161 16220150805: p17 FreeBSD-SA-15:18.bsdpatch 163 FreeBSD-SA-15:19.routed 164 165 Fix patch(1) shell injection vulnerability via ed(1). 166 [SA-15:18] 167 168 Fix routed remote denial of service vulnerability. [SA-15:19] 169 17020150728: p16 FreeBSD-SA-15:14.bsdpatch 171 FreeBSD-SA-15:15.tcp 172 FreeBSD-SA-15:16.openssh 173 174 Fix patch(1) shell injection vulnerability. [SA-15:14] 175 176 Fix resource exhaustion in TCP reassembly. [SA-15:15] 177 178 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 179 18020150721: p15 FreeBSD-SA-15:13.tcp 181 182 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 183 [SA-15:13] 184 18520150630: p14 FreeBSD-EN-15:08.sendmail [revised] 186 FreeBSD-EN-15:09.xlocale 187 FreeBSD-EN-15:10.iconv 188 189 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 190 191 Fix inconsistency between locale and rune locale states. 192 [EN-15:09] 193 194 Improved iconv(3) UTF-7 support. [EN-15:10] 195 19620150618: p13 FreeBSD-EN-15:08.sendmail 197 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 198 19920150612: p12 FreeBSD-SA-15:10.openssl 200 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 201 20220150609: p11 FreeBSD-EN-15:06.file 203 FreeBSD-EN-15:07.zfs 204 205 Updated base system file(1) to 5.22 to address multiple denial 206 of service issues. [EN-15:06] 207 208 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 209 [EN-15:07] 210 21120150513: p10 FreeBSD-EN-15:04.freebsd-update 212 FreeBSD-EN-15:05.ufs 213 214 Fix bug with freebsd-update(8) that does not ensure the previous 215 upgrade was completed. [EN-15:04] 216 217 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 218 21920150407: p9 FreeBSD-SA-15:04.igmp [revised] 220 FreeBSD-SA-15:07.ntp 221 FreeBSD-SA-15:08.bsdinstall 222 FreeBSD-SA-15:09.ipv6 223 224 Improved patch for SA-15:04.igmp. 225 226 Fix multiple vulnerabilities of ntp. [SA-15:07] 227 228 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 229 230 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 231 23220150320: p8 233 Fix patch for SA-15:06.openssl. 234 23520150319: p7 FreeBSD-SA-15:06.openssl 236 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 237 23820150225: p6 FreeBSD-SA-15:04.igmp 239 FreeBSD-EN-15:01.vt 240 FreeBSD-EN-15:02.openssl 241 FreeBSD-EN-15:03.freebsd-update 242 243 Fix integer overflow in IGMP protocol. [SA-15:04] 244 245 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 246 247 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 248 249 Fix freebsd-update libraries update ordering issue. [EN-15:03] 250 25120150127: p5 FreeBSD-SA-15:02.kmem 252 FreeBSD-SA-15:03.sctp 253 254 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 255 vulnerability. [SA-15:02] 256 257 Fix SCTP stream reset vulnerability. [SA-15:03] 258 25920150114: p4 FreeBSD-SA-15:01.openssl 260 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 261 26220141223: p3 FreeBSD-SA-14:31.ntp 263 FreeBSD-EN-14:13.freebsd-update 264 265 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 266 Fix directory deletion issue in freebsd-update. [EN-14:13] 267 26820141217: p2 FreeBSD-SA-14:30.unbound 269 Fix unbound remote denial of service vulnerability. 270 27120141210: p1 FreeBSD-SA-14:27.stdio 272 FreeBSD-SA-14:28.file 273 274 Fix buffer overflow in stdio. [SA-14:27] 275 276 Fix multiple vulnerabilities in file(1) and libmagic(3). 277 [SA-14:28] 278 27920140904: 280 The ofwfb driver, used to provide a graphics console on PowerPC when 281 using vt(4), no longer allows mmap() of all of physical memory. This 282 will prevent Xorg on PowerPC with some ATI graphics cards from 283 initializing properly unless x11-servers/xorg-server is updated to 284 1.12.4_8 or newer. 285 28620140831: 287 The libatf-c and libatf-c++ major versions were downgraded to 0 and 288 1 respectively to match the upstream numbers. They were out of 289 sync because, when they were originally added to FreeBSD, the 290 upstream versions were not respected. These libraries are private 291 and not yet built by default, so renumbering them should be a 292 non-issue. However, unclean source trees will yield broken test 293 programs once the operator executes "make delete-old-libs" after a 294 "make installworld". 295 296 Additionally, the atf-sh binary was made private by moving it into 297 /usr/libexec/. Already-built shell test programs will keep the 298 path to the old binary so they will break after "make delete-old" 299 is run. 300 301 If you are using WITH_TESTS=yes (not the default), wipe the object 302 tree and rebuild from scratch to prevent spurious test failures. 303 This is only needed once: the misnumbered libraries and misplaced 304 binaries have been added to OptionalObsoleteFiles.inc so they will 305 be removed during a clean upgrade. 306 30720140814: 308 The ixgbe tunables now match their sysctl counterparts, for example: 309 hw.ixgbe.enable_aim => hw.ix.enable_aim 310 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 311 31220140801: 313 The NFSv4.1 server committed by r269398 changes the internal 314 function call interfaces used between the NFS and krpc modules. 315 As such, __FreeBSD_version was bumped. 316 31720140729: 318 The default unbound configuration has been modified to address 319 issues with reverse lookups on networks that use private 320 address ranges. If you use the local_unbound service, run 321 "service local_unbound setup" as root to regenerate your 322 configuration, then "service local_unbound reload" to load the 323 new configuration. 324 32520140717: 326 It is no longer necessary to include the dwarf version in your DEBUG 327 options in your kernel config file. The bug that required it to be 328 placed in the config file has bene fixed. DEBUG should now just 329 contain -g. The build system will automatically update things 330 to do the right thing. 331 33220140715: 333 Several ABI breaking changes were merged to CTL and new iSCSI code. 334 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 335 iscsictl need to be rebuilt to work with a new kernel. 336 33720140708: 338 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 339 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 340 which differs from the behaviour controlled by this knob.) 341 34220140608: 343 On i386 and amd64 systems, the onifconsole flag is now set by default 344 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 345 as a login TTY if it is set in the bootloader as an active kernel 346 console. No changes in behavior should result otherwise. To revert to 347 the previous behavior, set ttyu0 to "off" in /etc/ttys. 348 34920140512: 350 Clang and llvm have been upgraded to 3.4.1 release. 351 35220140321: 353 Clang and llvm have been upgraded to 3.4 release. 354 35520140306: 356 If a Makefile in a tests/ directory was auto-generating a Kyuafile 357 instead of providing an explicit one, this would prevent such 358 Makefile from providing its own Kyuafile in the future during 359 NO_CLEAN builds. This has been fixed in the Makefiles but manual 360 intervention is needed to clean an objdir if you use NO_CLEAN: 361 # find /usr/obj -name Kyuafile | xargs rm -f 362 36320140303: 364 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 365 capability mode support. Please note that enabling the feature in 366 kernel is still highly recommended. 367 36820140227: 369 OpenSSH is now built with sandbox support, and will use sandbox as 370 the default privilege separation method. This requires Capsicum 371 capability mode support in kernel. 372 37320140216: 374 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 375 been deprecated and will not be part of FreeBSD 11.0 and later 376 releases. If you use this driver, please consider switching to 377 the nfe(4) driver instead. 378 37920140120: 380 10.0-RELEASE. 381 38220131216: 383 The behavior of gss_pseudo_random() for the krb5 mechanism 384 has changed, for applications requesting a longer random string 385 than produced by the underlying enctype's pseudo-random() function. 386 In particular, the random string produced from a session key of 387 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 388 be different at the 17th octet and later, after this change. 389 The counter used in the PRF+ construction is now encoded as a 390 big-endian integer in accordance with RFC 4402. 391 __FreeBSD_version is bumped to 1000701. 392 39320131108: 394 The WITHOUT_ATF build knob has been removed and its functionality 395 has been subsumed into the more generic WITHOUT_TESTS. If you were 396 using the former to disable the build of the ATF libraries, you 397 should change your settings to use the latter. 398 39920131031: 400 The default version of mtree is nmtree which is obtained from 401 NetBSD. The output is generally the same, but may vary 402 slightly. If you found you need identical output adding 403 "-F freebsd9" to the command line should do the trick. For the 404 time being, the old mtree is available as fmtree. 405 40620131014: 407 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 408 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 409 1.1.4_8 and verify bsdyml not linked in, before running "make 410 delete-old-libs": 411 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 412 or 413 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 414 41520131010: 416 The rc.d/jail script has been updated to support jail(8) 417 configuration file. The "jail_<jname>_*" rc.conf(5) variables 418 for per-jail configuration are automatically converted to 419 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 420 This is transparently backward compatible. See below about some 421 incompatibilities and rc.conf(5) manual page for more details. 422 423 These variables are now deprecated in favor of jail(8) configuration 424 file. One can use "rc.d/jail config <jname>" command to generate 425 a jail(8) configuration file in /var/run/jail.<jname>.conf without 426 running the jail(8) utility. The default pathname of the 427 configuration file is /etc/jail.conf and can be specified by 428 using $jail_conf or $jail_<jname>_conf variables. 429 430 Please note that jail_devfs_ruleset accepts an integer at 431 this moment. Please consider to rewrite the ruleset name 432 with an integer. 433 43420130930: 435 BIND has been removed from the base system. If all you need 436 is a local resolver, simply enable and start the local_unbound 437 service instead. Otherwise, several versions of BIND are 438 available in the ports tree. The dns/bind99 port is one example. 439 440 With this change, nslookup(1) and dig(1) are no longer in the base 441 system. Users should instead use host(1) and drill(1) which are 442 in the base system. Alternatively, nslookup and dig can 443 be obtained by installing the dns/bind-tools port. 444 44520130916: 446 With the addition of unbound(8), a new unbound user is now 447 required during installworld. "mergemaster -p" can be used to 448 add the user prior to installworld, as documented in the handbook. 449 45020130911: 451 OpenSSH is now built with DNSSEC support, and will by default 452 silently trust signed SSHFP records. This can be controlled with 453 the VerifyHostKeyDNS client configuration setting. DNSSEC support 454 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 455 45620130906: 457 The GNU Compiler Collection and C++ standard library (libstdc++) 458 are no longer built by default on platforms where clang is the system 459 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 460 options in src.conf. 461 46220130905: 463 The PROCDESC kernel option is now part of the GENERIC kernel 464 configuration and is required for the rwhod(8) to work. 465 If you are using custom kernel configuration, you should include 466 'options PROCDESC'. 467 46820130905: 469 The API and ABI related to the Capsicum framework was modified 470 in backward incompatible way. The userland libraries and programs 471 have to be recompiled to work with the new kernel. This includes the 472 following libraries and programs, but the whole buildworld is 473 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 474 kdump, procstat, rwho, rwhod, uniq. 475 47620130903: 477 AES-NI intrinsic support has been added to gcc. The AES-NI module 478 has been updated to use this support. A new gcc is required to build 479 the aesni module on both i386 and amd64. 480 48120130821: 482 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 483 Thus "device padlock_rng" and "device rdrand_rng" should be 484 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 485 48620130813: 487 WITH_ICONV has been split into two feature sets. WITH_ICONV now 488 enables just the iconv* functionality and is now on by default. 489 WITH_LIBICONV_COMPAT enables the libiconv api and link time 490 compatability. Set WITHOUT_ICONV to build the old way. 491 If you have been using WITH_ICONV before, you will very likely 492 need to turn on WITH_LIBICONV_COMPAT. 493 49420130806: 495 INVARIANTS option now enables DEBUG for code with OpenSolaris and 496 Illumos origin, including ZFS. If you have INVARIANTS in your 497 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 498 explicitly. 499 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 500 locks if WITNESS option was set. Because that generated a lot of 501 witness(9) reports and all of them were believed to be false 502 positives, this is no longer done. New option OPENSOLARIS_WITNESS 503 can be used to achieve the previous behavior. 504 50520130806: 506 Timer values in IPv6 data structures now use time_uptime instead 507 of time_second. Although this is not a user-visible functional 508 change, userland utilities which directly use them---ndp(8), 509 rtadvd(8), and rtsold(8) in the base system---need to be updated 510 to r253970 or later. 511 51220130802: 513 find -delete can now delete the pathnames given as arguments, 514 instead of only files found below them or if the pathname did 515 not contain any slashes. Formerly, the following error message 516 would result: 517 518 find: -delete: <path>: relative path potentially not safe 519 520 Deleting the pathnames given as arguments can be prevented 521 without error messages using -mindepth 1 or by changing 522 directory and passing "." as argument to find. This works in the 523 old as well as the new version of find. 524 52520130726: 526 Behavior of devfs rules path matching has been changed. 527 Pattern is now always matched against fully qualified devfs 528 path and slash characters must be explicitly matched by 529 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 530 subdirectories must be reviewed. 531 53220130716: 533 The default ARM ABI has changed to the ARM EABI. The old ABI is 534 incompatible with the ARM EABI and all programs and modules will 535 need to be rebuilt to work with a new kernel. 536 537 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 538 539 NOTE: Support for the old ABI will be removed in the future and 540 users are advised to upgrade. 541 54220130709: 543 pkg_install has been disconnected from the build if you really need it 544 you should add WITH_PKGTOOLS in your src.conf(5). 545 54620130709: 547 Most of network statistics structures were changed to be able 548 keep 64-bits counters. Thus all tools, that work with networking 549 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 550 55120130629: 552 Fix targets that run multiple make's to use && rather than ; 553 so that subsequent steps depend on success of previous. 554 555 NOTE: if building 'universe' with -j* on stable/8 or stable/9 556 it would be better to start the build using bmake, to avoid 557 overloading the machine. 558 55920130618: 560 Fix a bug that allowed a tracing process (e.g. gdb) to write 561 to a memory-mapped file in the traced process's address space 562 even if neither the traced process nor the tracing process had 563 write access to that file. 564 56520130615: 566 CVS has been removed from the base system. An exact copy 567 of the code is available from the devel/cvs port. 568 56920130613: 570 Some people report the following error after the switch to bmake: 571 572 make: illegal option -- J 573 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 574 ... 575 *** [buildworld] Error code 2 576 577 this likely due to an old instance of make in 578 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 579 which src/Makefile will use that blindly, if it exists, so if 580 you see the above error: 581 582 rm -rf `make -V MAKEPATH` 583 584 should resolve it. 585 58620130516: 587 Use bmake by default. 588 Whereas before one could choose to build with bmake via 589 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 590 make. The goal is to remove these knobs for 10-RELEASE. 591 592 It is worth noting that bmake (like gmake) treats the command 593 line as the unit of failure, rather than statements within the 594 command line. Thus '(cd some/where && dosomething)' is safer 595 than 'cd some/where; dosomething'. The '()' allows consistent 596 behavior in parallel build. 597 59820130429: 599 Fix a bug that allows NFS clients to issue READDIR on files. 600 60120130426: 602 The WITHOUT_IDEA option has been removed because 603 the IDEA patent expired. 604 60520130426: 606 The sysctl which controls TRIM support under ZFS has been renamed 607 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 608 enabled by default. 609 61020130425: 611 The mergemaster command now uses the default MAKEOBJDIRPREFIX 612 rather than creating it's own in the temporary directory in 613 order allow access to bootstrapped versions of tools such as 614 install and mtree. When upgrading from version of FreeBSD where 615 the install command does not support -l, you will need to 616 install a new mergemaster command if mergemaster -p is required. 617 This can be accomplished with the command (cd src/usr.sbin/mergemaster 618 && make install). 619 62020130404: 621 Legacy ATA stack, disabled and replaced by new CAM-based one since 622 FreeBSD 9.0, completely removed from the sources. Kernel modules 623 atadisk and atapi*, user-level tools atacontrol and burncd are 624 removed. Kernel option `options ATA_CAM` is now permanently enabled 625 and removed. 626 62720130319: 628 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 629 and socketpair(2). Software, in particular Kerberos, may 630 automatically detect and use these during building. The resulting 631 binaries will not work on older kernels. 632 63320130308: 634 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 635 information, see the respective 20130304 entry). 636 63720130304: 638 Recent commits to callout(9) changed the size of struct callout, 639 so the KBI is probably heavily disturbed. Also, some functions 640 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 641 by macros. Every kernel module using it won't load, so rebuild 642 is requested. 643 644 The ctl device has been re-enabled in GENERIC for i386 and amd64, 645 but does not initialize by default (because of the new CTL_DISABLE 646 option) to save memory. To re-enable it, remove the CTL_DISABLE 647 option from the kernel config file or set kern.cam.ctl.disable=0 648 in /boot/loader.conf. 649 65020130301: 651 The ctl device has been disabled in GENERIC for i386 and amd64. 652 This was done due to the extra memory being allocated at system 653 initialisation time by the ctl driver which was only used if 654 a CAM target device was created. This makes a FreeBSD system 655 unusable on 128MB or less of RAM. 656 65720130208: 658 A new compression method (lz4) has been merged to -HEAD. Please 659 refer to zpool-features(7) for more information. 660 661 Please refer to the "ZFS notes" section of this file for information 662 on upgrading boot ZFS pools. 663 66420130129: 665 A BSD-licensed patch(1) variant has been added and is installed 666 as bsdpatch, being the GNU version the default patch. 667 To inverse the logic and use the BSD-licensed one as default, 668 while having the GNU version installed as gnupatch, rebuild 669 and install world with the WITH_BSD_PATCH knob set. 670 67120130121: 672 Due to the use of the new -l option to install(1) during build 673 and install, you must take care not to directly set the INSTALL 674 make variable in your /etc/make.conf, /etc/src.conf, or on the 675 command line. If you wish to use the -C flag for all installs 676 you may be able to add INSTALL+=-C to /etc/make.conf or 677 /etc/src.conf. 678 67920130118: 680 The install(1) option -M has changed meaning and now takes an 681 argument that is a file or path to append logs to. In the 682 unlikely event that -M was the last option on the command line 683 and the command line contained at least two files and a target 684 directory the first file will have logs appended to it. The -M 685 option served little practical purpose in the last decade so its 686 use is expected to be extremely rare. 687 68820121223: 689 After switching to Clang as the default compiler some users of ZFS 690 on i386 systems started to experience stack overflow kernel panics. 691 Please consider using 'options KSTACK_PAGES=4' in such configurations. 692 69320121222: 694 GEOM_LABEL now mangles label names read from file system metadata. 695 Mangling affect labels containing spaces, non-printable characters, 696 '%' or '"'. Device names in /etc/fstab and other places may need to 697 be updated. 698 69920121217: 700 By default, only the 10 most recent kernel dumps will be saved. To 701 restore the previous behaviour (no limit on the number of kernel dumps 702 stored in the dump directory) add the following line to /etc/rc.conf: 703 704 savecore_flags="" 705 70620121201: 707 With the addition of auditdistd(8), a new auditdistd user is now 708 required during installworld. "mergemaster -p" can be used to 709 add the user prior to installworld, as documented in the handbook. 710 71120121117: 712 The sin6_scope_id member variable in struct sockaddr_in6 is now 713 filled by the kernel before passing the structure to the userland via 714 sysctl or routing socket. This means the KAME-specific embedded scope 715 id in sin6_addr.s6_addr[2] is always cleared in userland application. 716 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 717 __FreeBSD_version is bumped to 1000025. 718 71920121105: 720 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 721 This means that the world and kernel will be compiled with clang 722 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 723 and /usr/bin/cpp. To disable this behavior and revert to building 724 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 725 of current may need to bootstrap WITHOUT_CLANG first if the clang 726 build fails (its compatibility window doesn't extend to the 9 stable 727 branch point). 728 72920121102: 730 The IPFIREWALL_FORWARD kernel option has been removed. Its 731 functionality now turned on by default. 732 73320121023: 734 The ZERO_COPY_SOCKET kernel option has been removed and 735 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 736 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 737 mechanism which is not safe and may result in kernel crashes. 738 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 739 driver supports disposeable external page sized mbuf storage. 740 Proper replacements for both zero-copy mechanisms are under 741 consideration and will eventually lead to complete removal 742 of the two kernel options. 743 74420121023: 745 The IPv4 network stack has been converted to network byte 746 order. The following modules need to be recompiled together 747 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 748 pf(4), ipfw(4), ng_ipfw(4), stf(4). 749 75020121022: 751 Support for non-MPSAFE filesystems was removed from VFS. The 752 VFS_VERSION was bumped, all filesystem modules shall be 753 recompiled. 754 75520121018: 756 All the non-MPSAFE filesystems have been disconnected from 757 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 758 portalfs, smbfs, xfs. 759 76020121016: 761 The interface cloning API and ABI has changed. The following 762 modules need to be recompiled together with kernel: 763 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 764 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 765 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 766 76720121015: 768 The sdhci driver was split in two parts: sdhci (generic SD Host 769 Controller logic) and sdhci_pci (actual hardware driver). 770 No kernel config modifications are required, but if you 771 load sdhc as a module you must switch to sdhci_pci instead. 772 77320121014: 774 Import the FUSE kernel and userland support into base system. 775 77620121013: 777 The GNU sort(1) program has been removed since the BSD-licensed 778 sort(1) has been the default for quite some time and no serious 779 problems have been reported. The corresponding WITH_GNU_SORT 780 knob has also gone. 781 78220121006: 783 The pfil(9) API/ABI for AF_INET family has been changed. Packet 784 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 785 with new kernel. 786 78720121001: 788 The net80211(4) ABI has been changed to allow for improved driver 789 PS-POLL and power-save support. All wireless drivers need to be 790 recompiled to work with the new kernel. 791 79220120913: 793 The random(4) support for the VIA hardware random number 794 generator (`PADLOCK') is no longer enabled unconditionally. 795 Add the padlock_rng device in the custom kernel config if 796 needed. The GENERIC kernels on i386 and amd64 do include the 797 device, so the change only affects the custom kernel 798 configurations. 799 80020120908: 801 The pf(4) packet filter ABI has been changed. pfctl(8) and 802 snmp_pf module need to be recompiled to work with new kernel. 803 80420120828: 805 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 806 to -HEAD. Pools that have empty_bpobj in active state can not be 807 imported read-write with ZFS implementations that do not support 808 this feature. For more information read the zpool-features(5) 809 manual page. 810 81120120727: 812 The sparc64 ZFS loader has been changed to no longer try to auto- 813 detect ZFS providers based on diskN aliases but now requires these 814 to be explicitly listed in the OFW boot-device environment variable. 815 81620120712: 817 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 818 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 819 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 820 82120120712: 822 The following sysctls and tunables have been renamed for consistency 823 with other variables: 824 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 825 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 826 82720120628: 828 The sort utility has been replaced with BSD sort. For now, GNU sort 829 is also available as "gnusort" or the default can be set back to 830 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 831 installed as "bsdsort". 832 83320120611: 834 A new version of ZFS (pool version 5000) has been merged to -HEAD. 835 Starting with this version the old system of ZFS pool versioning 836 is superseded by "feature flags". This concept enables forward 837 compatibility against certain future changes in functionality of ZFS 838 pools. The first read-only compatible "feature flag" for ZFS pools 839 is named "com.delphix:async_destroy". For more information 840 read the new zpool-features(5) manual page. 841 Please refer to the "ZFS notes" section of this file for information 842 on upgrading boot ZFS pools. 843 84420120417: 845 The malloc(3) implementation embedded in libc now uses sources imported 846 as contrib/jemalloc. The most disruptive API change is to 847 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 848 delete it prior to installworld, and optionally re-create it using the 849 new format after rebooting. See malloc.conf(5) for details 850 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 851 NAMESPACE section). 852 85320120328: 854 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 855 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 856 now spelled mips. This is to aid compatibility with third-party 857 software that expects this naming scheme in uname(3). Little-endian 858 settings are unchanged. If you are updating a big-endian mips64 machine 859 from before this change, you may need to set MACHINE_ARCH=mips64 in 860 your environment before the new build system will recognize your machine. 861 86220120306: 863 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 864 platforms. 865 86620120229: 867 Now unix domain sockets behave "as expected" on nullfs(5). Previously 868 nullfs(5) did not pass through all behaviours to the underlying layer, 869 as a result if we bound to a socket on the lower layer we could connect 870 only to the lower path; if we bound to the upper layer we could connect 871 only to the upper path. The new behavior is one can connect to both the 872 lower and the upper paths regardless what layer path one binds to. 873 87420120211: 875 The getifaddrs upgrade path broken with 20111215 has been restored. 876 If you have upgraded in between 20111215 and 20120209 you need to 877 recompile libc again with your kernel. You still need to recompile 878 world to be able to configure CARP but this restriction already 879 comes from 20111215. 880 88120120114: 882 The set_rcvar() function has been removed from /etc/rc.subr. All 883 base and ports rc.d scripts have been updated, so if you have a 884 port installed with a script in /usr/local/etc/rc.d you can either 885 hand-edit the rcvar= line, or reinstall the port. 886 887 An easy way to handle the mass-update of /etc/rc.d: 888 rm /etc/rc.d/* && mergemaster -i 889 89020120109: 891 panic(9) now stops other CPUs in the SMP systems, disables interrupts 892 on the current CPU and prevents other threads from running. 893 This behavior can be reverted using the kern.stop_scheduler_on_panic 894 tunable/sysctl. 895 The new behavior can be incompatible with kern.sync_on_panic. 896 89720111215: 898 The carp(4) facility has been changed significantly. Configuration 899 of the CARP protocol via ifconfig(8) has changed, as well as format 900 of CARP events submitted to devd(8) has changed. See manual pages 901 for more information. The arpbalance feature of carp(4) is currently 902 not supported anymore. 903 904 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 905 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 906 need to be recompiled. 907 90820111122: 909 The acpi_wmi(4) status device /dev/wmistat has been renamed to 910 /dev/wmistat0. 911 91220111108: 913 The option VFS_ALLOW_NONMPSAFE option has been added in order to 914 explicitely support non-MPSAFE filesystems. 915 It is on by default for all supported platform at this present 916 time. 917 91820111101: 919 The broken amd(4) driver has been replaced with esp(4) in the amd64, 920 i386 and pc98 GENERIC kernel configuration files. 921 92220110930: 923 sysinstall has been removed 924 92520110923: 926 The stable/9 branch created in subversion. This corresponds to the 927 RELENG_9 branch in CVS. 928 92920110913: 930 This commit modifies vfs_register() so that it uses a hash 931 calculation to set vfc_typenum, which is enabled by default. 932 The first time a system is booted after this change, the 933 vfc_typenum values will change for all file systems. The 934 main effect of this is a change to the NFS server file handles 935 for file systems that use vfc_typenum in their fsid, such as ZFS. 936 It will, however, prevent vfc_typenum from changing when file 937 systems are loaded in a different order for subsequent reboots. 938 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 939 until you are ready to remount all NFS clients after a reboot. 940 94120110828: 942 Bump the shared library version numbers for libraries that 943 do not use symbol versioning, have changed the ABI compared 944 to stable/8 and which shared library version was not bumped. 945 Done as part of 9.0-RELEASE cycle. 946 94720110815: 948 During the merge of Capsicum features, the fget(9) KPI was modified. 949 This may require the rebuilding of out-of-tree device drivers -- 950 issues have been reported specifically with the nVidia device driver. 951 __FreeBSD_version is bumped to 900041. 952 953 Also, there is a period between 20110811 and 20110814 where the 954 special devices /dev/{stdin,stdout,stderr} did not work correctly. 955 Building world from a kernel during that window may not work. 956 95720110628: 958 The packet filter (pf) code has been updated to OpenBSD 4.5. 959 You need to update userland tools to be in sync with kernel. 960 This update breaks backward compatibility with earlier pfsync(4) 961 versions. Care must be taken when updating redundant firewall setups. 962 96320110608: 964 The following sysctls and tunables are retired on x86 platforms: 965 machdep.hlt_cpus 966 machdep.hlt_logical_cpus 967 The following sysctl is retired: 968 machdep.hyperthreading_allowed 969 The sysctls were supposed to provide a way to dynamically offline and 970 online selected CPUs on x86 platforms, but the implementation has not 971 been reliable especially with SCHED_ULE scheduler. 972 machdep.hyperthreading_allowed tunable is still available to ignore 973 hyperthreading CPUs at OS level. 974 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 975 where X is an APIC ID of a CPU. Be advised, though, that disabling 976 CPUs in non-uniform fashion will result in non-uniform topology and 977 may lead to sub-optimal system performance with SCHED_ULE, which is 978 a default scheduler. 979 98020110607: 981 cpumask_t type is retired and cpuset_t is used in order to describe 982 a mask of CPUs. 983 98420110531: 985 Changes to ifconfig(8) for dynamic address family detection mandate 986 that you are running a kernel of 20110525 or later. Make sure to 987 follow the update procedure to boot a new kernel before installing 988 world. 989 99020110513: 991 Support for sun4v architecture is officially dropped 992 99320110503: 994 Several KPI breaking changes have been committed to the mii(4) layer, 995 the PHY drivers and consequently some Ethernet drivers using mii(4). 996 This means that miibus.ko and the modules of the affected Ethernet 997 drivers need to be recompiled. 998 999 Note to kernel developers: Given that the OUI bit reversion problem 1000 was fixed as part of these changes all mii(4) commits related to OUIs, 1001 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 1002 handling, no longer can be merged verbatim to stable/8 and previous 1003 branches. 1004 100520110430: 1006 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 1007 into their kernel configurations along with 'device pci'. 1008 100920110427: 1010 The default NFS client is now the new NFS client, so fstype "newnfs" 1011 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 1012 Although mounts via fstype "nfs" will usually work without userland 1013 changes, it is recommended that the mount(8) and mount_nfs(8) 1014 commands be rebuilt from sources and that a link to mount_nfs called 1015 mount_oldnfs be created. The new client is compiled into the 1016 kernel with "options NFSCL" and this is needed for diskless root 1017 file systems. The GENERIC kernel configs have been changed to use 1018 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 1019 To use the regular/old client, you can "mount -t oldnfs ...". For 1020 a diskless root file system, you must also include a line like: 1021 1022 vfs.root.mountfrom="oldnfs:" 1023 1024 in the boot/loader.conf on the root fs on the NFS server to make 1025 a diskless root fs use the old client. 1026 102720110424: 1028 The GENERIC kernels for all architectures now default to the new 1029 CAM-based ATA stack. It means that all legacy ATA drivers were 1030 removed and replaced by respective CAM drivers. If you are using 1031 ATA device names in /etc/fstab or other places, make sure to update 1032 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 1033 where 'Y's are the sequential numbers starting from zero for each type 1034 in order of detection, unless configured otherwise with tunables, 1035 see cam(4)). There will be symbolic links created in /dev/ to map 1036 old adX devices to the respective adaY. They should provide basic 1037 compatibility for file systems mounting in most cases, but they do 1038 not support old user-level APIs and do not have respective providers 1039 in GEOM. Consider using updated management tools with new device names. 1040 1041 It is possible to load devices ahci, ata, siis and mvs as modules, 1042 but option ATA_CAM should remain in kernel configuration to make ata 1043 module work as CAM driver supporting legacy ATA controllers. Device ata 1044 still can be used in modular fashion (atacore + ...). Modules atadisk 1045 and atapi* are not used and won't affect operation in ATA_CAM mode. 1046 Note that to use CAM-based ATA kernel should include CAM devices 1047 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1048 them are parts of the cam module. 1049 1050 ataraid(4) functionality is now supported by the RAID GEOM class. 1051 To use it you can load geom_raid kernel module and use graid(8) tool 1052 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1053 1054 No kernel config options or code have been removed, so if a problem 1055 arises, please report it and optionally revert to the old ATA stack. 1056 In order to do it you can remove from the kernel config: 1057 options ATA_CAM 1058 device ahci 1059 device mvs 1060 device siis 1061 , and instead add back: 1062 device atadisk # ATA disk drives 1063 device ataraid # ATA RAID drives 1064 device atapicd # ATAPI CDROM drives 1065 device atapifd # ATAPI floppy drives 1066 device atapist # ATAPI tape drives 1067 106820110423: 1069 The default NFS server has been changed to the new server, which 1070 was referred to as the experimental server. If you need to switch 1071 back to the old NFS server, you must now put the "-o" option on 1072 both the mountd and nfsd commands. This can be done using the 1073 mountd_flags and nfs_server_flags rc.conf variables until an 1074 update to the rc scripts is committed, which is coming soon. 1075 107620110418: 1077 The GNU Objective-C runtime library (libobjc), and other Objective-C 1078 related components have been removed from the base system. If you 1079 require an Objective-C library, please use one of the available ports. 1080 108120110331: 1082 ath(4) has been split into bus- and device- modules. if_ath contains 1083 the HAL, the TX rate control and the network device code. if_ath_pci 1084 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1085 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1086 in order to use ath on everything else. 1087 1088 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1089 need to load if_ath and if_ath_pci for ath(4) operation. 1090 109120110314: 1092 As part of the replacement of sysinstall, the process of building 1093 release media has changed significantly. For details, please re-read 1094 release(7), which has been updated to reflect the new build process. 1095 109620110218: 1097 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1098 is the last available version under GPLv2. It brings a number of new 1099 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1100 4.1 and SSE 4.2), better support for powerpc64, a number of new 1101 directives, and lots of other small improvements. See the ChangeLog 1102 file in contrib/binutils for the full details. 1103 110420110218: 1105 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1106 compliant, and will now use half of hash for authentication. 1107 This will break interoperability with all stacks (including all 1108 actual FreeBSD versions) who implement 1109 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1110 authentication). 1111 The only workaround with such peers is to use another HMAC 1112 algorithm for IPsec ("phase 2") authentication. 1113 111420110207: 1115 Remove the uio_yield prototype and symbol. This function has 1116 been misnamed since it was introduced and should not be 1117 globally exposed with this name. The equivalent functionality 1118 is now available using kern_yield(curthread->td_user_pri). 1119 The function remains undocumented. 1120 112120110112: 1122 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1123 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1124 for scalar sysctls is defined but disabled. Code that needs 1125 UQUAD to pass the type checking that must compile on older 1126 systems where the define is not present can check against 1127 __FreeBSD_version >= 900030. 1128 1129 The system dialog(1) has been replaced with a new version previously 1130 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1131 with the previous version, but the libdialog associated with it has 1132 a largely incompatible API. As such, the original version of libdialog 1133 will be kept temporarily as libodialog, until its base system consumers 1134 are replaced or updated. Bump __FreeBSD_version to 900030. 1135 113620110103: 1137 If you are trying to run make universe on a -stable system, and you get 1138 the following warning: 1139 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1140 unknown. config(8) likely too old." 1141 or something similar to it, then you must upgrade your -stable system 1142 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1143 stable/8) or build the config from the latest stable/8 branch and 1144 install it on your system. 1145 1146 Prior to this date, building a current universe on 8-stable system from 1147 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1148 error in the first kernel build phase. A new config on those old 1149 systems will fix that problem for older versions of -current. 1150 115120101228: 1152 The TCP stack has been modified to allow Khelp modules to interact with 1153 it via helper hook points and store per-connection data in the TCP 1154 control block. Bump __FreeBSD_version to 900029. User space tools that 1155 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1156 be recompiled. 1157 115820101114: 1159 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1160 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1161 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1162 to take advantage of it instead of using custom implementations. This 1163 means that these drivers now no longer unconditionally advertise 1164 support for flow control but only do so if flow control is a selected 1165 media option. This was implemented in the generic support that way in 1166 order to allow flow control to be switched on and off via ifconfig(8) 1167 with the PHY specific default to typically off in order to protect 1168 from unwanted effects. Consequently, if you used flow control with 1169 one of the above mentioned drivers you now need to explicitly enable 1170 it, for example via: 1171 ifconfig bge0 media auto mediaopt flowcontrol 1172 1173 Along with the above mentioned changes generic support for setting 1174 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1175 e1000phy(4) as well as ip1000phy(4) have been converted to take 1176 advantage of it. This means that these drivers now no longer take the 1177 link0 parameter for selecting master mode but the master media option 1178 has to be used instead, for example like in the following: 1179 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1180 1181 Selection of master mode now is also available with all other PHY 1182 drivers supporting 1000baseT. 1183 118420101111: 1185 The TCP stack has received a significant update to add support for 1186 modularised congestion control and generally improve the clarity of 1187 congestion control decisions. Bump __FreeBSD_version to 900025. User 1188 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1189 sockstat) need to be recompiled. 1190 119120101002: 1192 The man(1) utility has been replaced by a new version that no longer 1193 uses /etc/manpath.config. Please consult man.conf(5) for how to 1194 migrate local entries to the new format. 1195 119620100928: 1197 The copyright strings printed by login(1) and sshd(8) at the time of a 1198 new connection have been removed to follow other operating systems and 1199 upstream sshd. 1200 120120100915: 1202 A workaround for a fixed ld bug has been removed in kernel code, 1203 so make sure that your system ld is built from sources after 1204 revision 210245 from 2010-07-19 (r211583 if building head kernel 1205 on stable/8, r211584 for stable/7; both from 2010-08-21). 1206 A symptom of incorrect ld version is different addresses for 1207 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1208 120920100913: 1210 The $ipv6_prefer variable in rc.conf(5) has been split into 1211 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1212 1213 The $ip6addrctl_policy is a variable to choose a pre-defined 1214 address selection policy set by ip6addrctl(8). A value 1215 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1216 default is "AUTO". 1217 1218 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1219 flag (see an entry of 20090926) is set on an interface with no 1220 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1221 security reason. If you want IPv6 link-local address on all 1222 interfaces by default, set this to "YES". 1223 1224 The old ipv6_prefer="YES" is equivalent to 1225 ipv6_activate_all_interfaces="YES" and 1226 ip6addrctl_policy="ipv6_prefer". 1227 122820100913: 1229 DTrace has grown support for userland tracing. Due to this, DTrace is 1230 now i386 and amd64 only. 1231 dtruss(1) is now installed by default on those systems and a new 1232 kernel module is needed for userland tracing: fasttrap. 1233 No changes to your kernel config file are necessary to enable 1234 userland tracing, but you might consider adding 'STRIP=' and 1235 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1236 to have informative userland stack traces in DTrace (ustack). 1237 123820100725: 1239 The acpi_aiboost(4) driver has been removed in favor of the new 1240 aibs(4) driver. You should update your kernel configuration file. 1241 124220100722: 1243 BSD grep has been imported to the base system and it is built by 1244 default. It is completely BSD licensed, highly GNU-compatible, uses 1245 less memory than its GNU counterpart and has a small codebase. 1246 However, it is slower than its GNU counterpart, which is mostly 1247 noticeable for larger searches, for smaller ones it is measurable 1248 but not significant. The reason is complex, the most important factor 1249 is that we lack a modern and efficient regex library and GNU 1250 overcomes this by optimizing the searches internally. Future work 1251 on improving the regex performance is planned, for the meantime, 1252 users that need better performance, can build GNU grep instead by 1253 setting the WITH_GNU_GREP knob. 1254 125520100713: 1256 Due to the import of powerpc64 support, all existing powerpc kernel 1257 configuration files must be updated with a machine directive like this: 1258 machine powerpc powerpc 1259 1260 In addition, an updated config(8) is required to build powerpc kernels 1261 after this change. 1262 126320100713: 1264 A new version of ZFS (version 15) has been merged to -HEAD. 1265 This version uses a python library for the following subcommands: 1266 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1267 For full functionality of these commands the following port must 1268 be installed: sysutils/py-zfs 1269 127020100429: 1271 'vm_page's are now hashed by physical address to an array of mutexes. 1272 Currently this is only used to serialize access to hold_count. Over 1273 time the page queue mutex will be peeled away. This changes the size 1274 of pmap on every architecture. And requires all callers of vm_page_hold 1275 and vm_page_unhold to be updated. 1276 127720100402: 1278 WITH_CTF can now be specified in src.conf (not recommended, there 1279 are some problems with static executables), make.conf (would also 1280 affect ports which do not use GNU make and do not override the 1281 compile targets) or in the kernel config (via "makeoptions 1282 WITH_CTF=yes"). 1283 When WITH_CTF was specified there before this was silently ignored, 1284 so make sure that WITH_CTF is not used in places which could lead 1285 to unwanted behavior. 1286 128720100311: 1288 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1289 to allow 32-bit compatibility on non-x86 platforms. All kernel 1290 configurations on amd64 and ia64 platforms using these options must 1291 be modified accordingly. 1292 129320100113: 1294 The utmp user accounting database has been replaced with utmpx, 1295 the user accounting interface standardized by POSIX. 1296 Unfortunately the semantics of utmp and utmpx don't match, 1297 making it practically impossible to support both interfaces. 1298 The user accounting database is used by tools like finger(1), 1299 last(1), talk(1), w(1) and ac(8). 1300 1301 All applications in the base system use utmpx. This means only 1302 local binaries (e.g. from the ports tree) may still use these 1303 utmp database files. These applications must be rebuilt to make 1304 use of utmpx. 1305 1306 After the system has been upgraded, it is safe to remove the old 1307 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1308 assuming their contents is of no importance anymore. Old wtmp 1309 databases can only be used by last(1) and ac(8) after they have 1310 been converted to the new format using wtmpcvt(1). 1311 131220100108: 1313 Introduce the kernel thread "deadlock resolver" (which can be enabled 1314 via the DEADLKRES option, see NOTES for more details) and the 1315 sleepq_type() function for sleepqueues. 1316 131720091202: 1318 The rc.firewall and rc.firewall6 were unified, and 1319 rc.firewall6 and rc.d/ip6fw were removed. 1320 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1321 variables are obsoleted. Instead, the following new rc 1322 variables are added to rc.d/ipfw: 1323 1324 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1325 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1326 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1327 1328 The meanings correspond to the relevant IPv4 variables. 1329 133020091125: 1331 8.0-RELEASE. 1332 133320091113: 1334 The default terminal emulation for syscons(4) has been changed 1335 from cons25 to xterm on all platforms except pc98. This means 1336 that the /etc/ttys file needs to be updated to ensure correct 1337 operation of applications on the console. 1338 1339 The terminal emulation style can be toggled per window by using 1340 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1341 options can be used to change the compile-time default back to 1342 cons25. 1343 1344 To prevent graphical artifacts, make sure the TERM environment 1345 variable is set to match the terminal emulation that is being 1346 performed by syscons(4). 1347 134820091109: 1349 The layout of the structure ieee80211req_scan_result has changed. 1350 Applications that require wireless scan results (e.g. ifconfig(8)) 1351 from net80211 need to be recompiled. 1352 1353 Applications such as wpa_supplicant(8) may require a full world 1354 build without using NO_CLEAN in order to get synchronized with the 1355 new structure. 1356 135720091025: 1358 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1359 There's one kernel module for each firmware. Adding "device iwnfw" 1360 to the kernel configuration file means including all three firmware 1361 images inside the kernel. If you want to include just the one for 1362 your wireless card, use the devices iwn4965fw, iwn5000fw or 1363 iwn5150fw. 1364 136520090926: 1366 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1367 into rc.d/netif. The changes are the following: 1368 1369 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1370 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1371 Note that both variables need the "inet6" keyword at the head. 1372 1373 Do not set $ipv6_network_interfaces manually if you do not 1374 understand what you are doing. It is not needed in most cases. 1375 1376 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1377 they are obsolete. 1378 1379 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1380 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1381 1382 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1383 all configured interfaces have "inet6 accept_rtadv" in the 1384 $ifconfig_IF_ipv6. These are for backward compatibility. 1385 1386 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1387 functionality of interfaces with no corresponding 1388 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1389 and the default address selection policy of ip6addrctl(8) 1390 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1391 Note that if you want to configure IPv6 functionality on the 1392 disabled interfaces after boot, first you need to clear the flag by 1393 using ifconfig(8) like: 1394 1395 ifconfig em0 inet6 -ifdisabled 1396 1397 If YES, the default address selection policy is set as 1398 IPv6-preferred. 1399 1400 The default value of $ipv6_prefer is NO. 1401 1402 4. If your system need to receive Router Advertisement messages, 1403 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1404 scripts automatically invoke rtsol(8) when the interface becomes 1405 UP. The Router Advertisement messages are used for SLAAC 1406 (State-Less Address AutoConfiguration). 1407 140820090922: 1409 802.11s D3.03 support was committed. This is incompatible with the 1410 previous code, which was based on D3.0. 1411 141220090912: 1413 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1414 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1415 control whether accepting Router Advertisement messages or not. 1416 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1417 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1418 The ifconfig(8) utility now supports these flags. 1419 142020090910: 1421 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1422 mount(8) and -a option for df(1) to see them. 1423 142420090825: 1425 The old tunable hw.bus.devctl_disable has been superseded by 1426 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1427 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1428 is 1000. 1429 143020090813: 1431 Remove the option STOP_NMI. The default action is now to use NMI only 1432 for KDB via the newly introduced function stop_cpus_hard() and 1433 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1434 143520090803: 1436 The stable/8 branch created in subversion. This corresponds to the 1437 RELENG_8 branch in CVS. 1438 143920090719: 1440 Bump the shared library version numbers for all libraries that do not 1441 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1442 __FreeBSD_version to 800105. 1443 144420090714: 1445 Due to changes in the implementation of virtual network stack support, 1446 all network-related kernel modules must be recompiled. As this change 1447 breaks the ABI, bump __FreeBSD_version to 800104. 1448 144920090713: 1450 The TOE interface to the TCP syncache has been modified to remove 1451 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1452 The cxgb driver is the only TOE consumer affected by this change, and 1453 needs to be recompiled along with the kernel. As this change breaks 1454 the ABI, bump __FreeBSD_version to 800103. 1455 145620090712: 1457 Padding has been added to struct tcpcb, sackhint and tcpstat in 1458 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1459 maintaining the ABI. However, this change breaks the ABI, so bump 1460 __FreeBSD_version to 800102. User space tools that rely on the size of 1461 any of these structs (e.g. sockstat) need to be recompiled. 1462 146320090630: 1464 The NFS_LEGACYRPC option has been removed along with the old kernel 1465 RPC implementation that this option selected. Kernel configurations 1466 may need to be adjusted. 1467 146820090629: 1469 The network interface device nodes at /dev/net/<interface> have been 1470 removed. All ioctl operations can be performed the normal way using 1471 routing sockets. The kqueue functionality can generally be replaced 1472 with routing sockets. 1473 147420090628: 1475 The documentation from the FreeBSD Documentation Project (Handbook, 1476 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1477 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1478 147920090624: 1480 The ABI of various structures related to the SYSV IPC API have been 1481 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1482 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1483 800100. 1484 148520090622: 1486 Layout of struct vnet has changed as routing related variables were 1487 moved to their own Vimage module. Modules need to be recompiled. Bump 1488 __FreeBSD_version to 800099. 1489 149020090619: 1491 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1492 respectively. As long as no more than 16 groups per process are used, 1493 no changes should be visible. When more than 16 groups are used, old 1494 binaries may fail if they call getgroups() or getgrouplist() with 1495 statically sized storage. Recompiling will work around this, but 1496 applications should be modified to use dynamically allocated storage 1497 for group arrays as POSIX.1-2008 does not cap an implementation's 1498 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1499 1500 NFS and portalfs mounts may also be affected as the list of groups is 1501 truncated to 16. Users of NFS who use more than 16 groups, should 1502 take care that negative group permissions are not used on the exported 1503 file systems as they will not be reliable unless a GSSAPI based 1504 authentication method is used. 1505 150620090616: 1507 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1508 option compiles in the support for adaptive spinning for lockmgrs 1509 which want to enable it. The lockinit() function now accepts the flag 1510 LK_ADAPTIVE in order to make the lock object subject to adaptive 1511 spinning when both held in write and read mode. 1512 151320090613: 1514 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1515 changed. User applications that use this ioctl need to be rebuilt. 1516 151720090611: 1518 The layout of struct thread has changed. Kernel and modules need to 1519 be rebuilt. 1520 152120090608: 1522 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1523 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1524 152520090602: 1526 window(1) has been removed from the base system. It can now be 1527 installed from ports. The port is called misc/window. 1528 152920090601: 1530 The way we are storing and accessing `routing table' entries has 1531 changed. Programs reading the FIB, like netstat, need to be 1532 re-compiled. 1533 153420090601: 1535 A new netisr implementation has been added for FreeBSD 8. Network 1536 file system modules, such as igmp, ipdivert, and others, should be 1537 rebuilt. 1538 Bump __FreeBSD_version to 800096. 1539 154020090530: 1541 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1542 more valid. 1543 154420090530: 1545 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1546 Bump __FreeBSD_version to 800094. 1547 154820090529: 1549 Add mnt_xflag field to 'struct mount'. File system modules need to be 1550 rebuilt. 1551 Bump __FreeBSD_version to 800093. 1552 155320090528: 1554 The compiling option ADAPTIVE_SX has been retired while it has been 1555 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1556 The KPI for sx_init_flags() changes as accepting flags: 1557 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1558 been introduced in order to handle the reversed logic. 1559 Bump __FreeBSD_version to 800092. 1560 156120090527: 1562 Add support for hierarchical jails. Remove global securelevel. 1563 Bump __FreeBSD_version to 800091. 1564 156520090523: 1566 The layout of struct vnet_net has changed, therefore modules 1567 need to be rebuilt. 1568 Bump __FreeBSD_version to 800090. 1569 157020090523: 1571 The newly imported zic(8) produces a new format in the output. Please 1572 run tzsetup(8) to install the newly created data to /etc/localtime. 1573 157420090520: 1575 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1576 hw.usb.* and is now consistent again with previous releases. 1577 157820090520: 1579 802.11 monitor mode support was revised and driver api's were changed. 1580 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1581 of DLT_IEEE802_11. No user-visible data structures were changed but 1582 applications that use DLT_IEEE802_11 may require changes. 1583 Bump __FreeBSD_version to 800088. 1584 158520090430: 1586 The layout of the following structs has changed: sysctl_oid, 1587 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1588 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1589 panics may be experienced. World rebuild is required for 1590 correctly checking networking state from userland. 1591 Bump __FreeBSD_version to 800085. 1592 159320090429: 1594 MLDv2 and Source-Specific Multicast (SSM) have been merged 1595 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1596 The implementation of SSM within FreeBSD's IPv6 stack closely 1597 follows the IPv4 implementation. 1598 1599 For kernel developers: 1600 1601 * The most important changes are that the ip6_output() and 1602 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1603 and this lock has been downgraded to a non-recursive mutex. 1604 1605 * As with the changes to the IPv4 stack to support SSM, filtering 1606 of inbound multicast traffic must now be performed by transport 1607 protocols within the IPv6 stack. This does not apply to TCP and 1608 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1609 1610 * The KPIs used by IPv6 multicast are similar to those used by 1611 the IPv4 stack, with the following differences: 1612 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1613 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1614 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1615 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1616 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1617 for MLDv1 have an additional 'timer' argument which is used to 1618 jitter the initial membership report for the solicited-node 1619 multicast membership on-link. 1620 * This is not strictly needed for MLDv2, which already jitters 1621 its report transmissions. However, the 'timer' argument is 1622 preserved in case MLDv1 is active on the interface. 1623 1624 * The KAME linked-list based IPv6 membership implementation has 1625 been refactored to use a vector similar to that used by the IPv4 1626 stack. 1627 Code which maintains a list of its own multicast memberships 1628 internally, e.g. carp, has been updated to reflect the new 1629 semantics. 1630 1631 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1632 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1633 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1634 implementation constraint which needs to be addressed in HEAD. 1635 1636 For application developers: 1637 1638 * The changes are broadly similar to those made for the IPv4 1639 stack. 1640 1641 * The use of IPv4 and IPv6 multicast socket options on the same 1642 socket, using mapped addresses, HAS NOT been tested or supported. 1643 1644 * There are a number of issues with the implementation of various 1645 IPv6 multicast APIs which need to be resolved in the API surface 1646 before the implementation is fully compatible with KAME userland 1647 use, and these are mostly to do with interface index treatment. 1648 1649 * The literature available discusses the use of either the delta / ASM 1650 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1651 using setsourcefilter(3)/getsourcefilter(3). For more information 1652 please refer to RFC 3768, 'Socket Interface Extensions for 1653 Multicast Source Filters'. 1654 1655 * Applications which use the published RFC 3678 APIs should be fine. 1656 1657 For systems administrators: 1658 1659 * The mtest(8) utility has been refactored to support IPv6, in 1660 addition to IPv4. Interface addresses are no longer accepted 1661 as arguments, their names must be used instead. The utility 1662 will map the interface name to its first IPv4 address as 1663 returned by getifaddrs(3). 1664 1665 * The ifmcstat(8) utility has also been updated to print the MLDv2 1666 endpoint state and source filter lists via sysctl(3). 1667 1668 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1669 loopback of IPv6 multicast datagrams by default; it defaults to 1 1670 to preserve the existing behaviour. Disabling multicast loopback is 1671 recommended for optimal system performance. 1672 1673 * The IPv6 MROUTING code has been changed to examine this sysctl 1674 instead of attempting to perform a group lookup before looping 1675 back forwarded datagrams. 1676 1677 Bump __FreeBSD_version to 800084. 1678 167920090422: 1680 Implement low-level Bluetooth HCI API. 1681 Bump __FreeBSD_version to 800083. 1682 168320090419: 1684 The layout of struct malloc_type, used by modules to register new 1685 memory allocation types, has changed. Most modules will need to 1686 be rebuilt or panics may be experienced. 1687 Bump __FreeBSD_version to 800081. 1688 168920090415: 1690 Anticipate overflowing inp_flags - add inp_flags2. 1691 This changes most offsets in inpcb, so checking v4 connection 1692 state will require a world rebuild. 1693 Bump __FreeBSD_version to 800080. 1694 169520090415: 1696 Add an llentry to struct route and struct route_in6. Modules 1697 embedding a struct route will need to be recompiled. 1698 Bump __FreeBSD_version to 800079. 1699 170020090414: 1701 The size of rt_metrics_lite and by extension rtentry has changed. 1702 Networking administration apps will need to be recompiled. 1703 The route command now supports show as an alias for get, weighting 1704 of routes, sticky and nostick flags to alter the behavior of stateful 1705 load balancing. 1706 Bump __FreeBSD_version to 800078. 1707 170820090408: 1709 Do not use Giant for kbdmux(4) locking. This is wrong and 1710 apparently causing more problems than it solves. This will 1711 re-open the issue where interrupt handlers may race with 1712 kbdmux(4) in polling mode. Typical symptoms include (but 1713 not limited to) duplicated and/or missing characters when 1714 low level console functions (such as gets) are used while 1715 interrupts are enabled (for example geli password prompt, 1716 mountroot prompt etc.). Disabling kbdmux(4) may help. 1717 171820090407: 1719 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1720 kernel modules referencing any of the above need to be recompiled. 1721 Bump __FreeBSD_version to 800075. 1722 172320090320: 1724 GEOM_PART has become the default partition slicer for storage devices, 1725 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1726 introduces some changes: 1727 1728 MSDOS/EBR: the devices created from MSDOS extended partition entries 1729 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1730 to devices with offset-based names. fstabs may need to be modified. 1731 1732 BSD: the "geometry does not match label" warning is harmless in most 1733 cases but it points to problems in file system misalignment with 1734 disk geometry. The "c" partition is now implicit, covers the whole 1735 top-level drive and cannot be (mis)used by users. 1736 1737 General: Kernel dumps are now not allowed to be written to devices 1738 whose partition types indicate they are meant to be used for file 1739 systems (or, in case of MSDOS partitions, as something else than 1740 the "386BSD" type). 1741 1742 Most of these changes date approximately from 200812. 1743 174420090319: 1745 The uscanner(4) driver has been removed from the kernel. This follows 1746 Linux removing theirs in 2.6 and making libusb the default interface 1747 (supported by sane). 1748 174920090319: 1750 The multicast forwarding code has been cleaned up. netstat(1) 1751 only relies on KVM now for printing bandwidth upcall meters. 1752 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1753 ip6_mroute_mod respectively. The config(5) options for statically 1754 compiling this code remain the same, i.e. 'options MROUTING'. 1755 175620090315: 1757 Support for the IFF_NEEDSGIANT network interface flag has been 1758 removed, which means that non-MPSAFE network device drivers are no 1759 longer supported. In particular, if_ar, if_sr, and network device 1760 drivers from the old (legacy) USB stack can no longer be built or 1761 used. 1762 176320090313: 1764 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1765 a bunch of new language catalog files have also been added. 1766 This means that some common libc messages are now localized and 1767 they depend on the LC_MESSAGES environmental variable. 1768 176920090313: 1770 The k8temp(4) driver has been renamed to amdtemp(4) since 1771 support for Family 10 and Family 11 CPU families was added. 1772 177320090309: 1774 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1775 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1776 1777 For kernel developers, the most important changes are that the 1778 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1779 and this lock has been downgraded to a non-recursive mutex. 1780 1781 Transport protocols (UDP, Raw IP) are now responsible for filtering 1782 inbound multicast traffic according to group membership and source 1783 filters. The imo_multicast_filter() KPI exists for this purpose. 1784 Transports which do not use multicast (SCTP, TCP) already reject 1785 multicast by default. Forwarding and receive performance may improve 1786 as a mutex acquisition is no longer needed in the ip_input() 1787 low-level input path. in_addmulti() and in_delmulti() are shimmed 1788 to new KPIs which exist to support SSM in-kernel. 1789 1790 For application developers, it is recommended that loopback of 1791 multicast datagrams be disabled for best performance, as this 1792 will still cause the lock to be taken for each looped-back 1793 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1794 be tuned to 0 to disable loopback by default; it defaults to 1 1795 to preserve the existing behaviour. 1796 1797 For systems administrators, to obtain best performance with 1798 multicast reception and multiple groups, it is always recommended 1799 that a card with a suitably precise hash filter is used. Hash 1800 collisions will still result in the lock being taken within the 1801 transport protocol input path to check group membership. 1802 1803 If deploying FreeBSD in an environment with IGMP snooping switches, 1804 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1805 enabled; this forces 224.0.0.0/24 group membership to be announced 1806 via IGMP. 1807 1808 The size of 'struct igmpstat' has changed; netstat needs to be 1809 recompiled to reflect this. 1810 Bump __FreeBSD_version to 800070. 1811 181220090309: 1813 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1814 updated to use it. This requires a buildworld/installworld in order to 1815 update the library and dependencies (usbconfig, etc). Its advisable to 1816 rebuild all ports which uses libusb. More specific directions are given 1817 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1818 libusb are no longer required and can be removed. 1819 182020090302: 1821 A workaround is committed to allow the creation of System V shared 1822 memory segment of size > 2 GB on the 64-bit architectures. 1823 Due to a limitation of the existing ABI, the shm_segsz member 1824 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1825 wrong for large segments. Note that limits must be explicitly 1826 raised to allow such segments to be created. 1827 182820090301: 1829 The layout of struct ifnet has changed, requiring a rebuild of all 1830 network device driver modules. 1831 183220090227: 1833 The /dev handling for the new USB stack has changed, a 1834 buildworld/installworld is required for libusb20. 1835 183620090223: 1837 The new USB2 stack has now been permanently moved in and all kernel and 1838 module names reverted to their previous values (eg, usb, ehci, ohci, 1839 ums, ...). The old usb stack can be compiled in by prefixing the name 1840 with the letter 'o', the old usb modules have been removed. 1841 Updating entry 20090216 for xorg and 20090215 for libmap may still 1842 apply. 1843 184420090217: 1845 The rc.conf(5) option if_up_delay has been renamed to 1846 defaultroute_delay to better reflect its purpose. If you have 1847 customized this setting in /etc/rc.conf you need to update it to 1848 use the new name. 1849 185020090216: 1851 xorg 7.4 wants to configure its input devices via hald which does not 1852 yet work with USB2. If the keyboard/mouse does not work in xorg then 1853 add 1854 Option "AllowEmptyInput" "off" 1855 to your ServerLayout section. This will cause X to use the configured 1856 kbd and mouse sections from your xorg.conf. 1857 185820090215: 1859 The GENERIC kernels for all architectures now default to the new USB2 1860 stack. No kernel config options or code have been removed so if a 1861 problem arises please report it and optionally revert to the old USB 1862 stack. If you are loading USB kernel modules or have a custom kernel 1863 that includes GENERIC then ensure that usb names are also changed over, 1864 eg uftdi -> usb2_serial_ftdi. 1865 1866 Older programs linked against the ports libusb 0.1 need to be 1867 redirected to the new stack's libusb20. /etc/libmap.conf can 1868 be used for this: 1869 # Map old usb library to new one for usb2 stack 1870 libusb-0.1.so.8 libusb20.so.1 1871 187220090209: 1873 All USB ethernet devices now attach as interfaces under the name ueN 1874 (eg. ue0). This is to provide a predictable name as vendors often 1875 change usb chipsets in a product without notice. 1876 187720090203: 1878 The ichsmb(4) driver has been changed to require SMBus slave 1879 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1880 All of the other SMBus controller drivers require left-justified 1881 slave addresses, so this change makes all the drivers provide the 1882 same interface. 1883 188420090201: 1885 INET6 statistics (struct ip6stat) was updated. 1886 netstat(1) needs to be recompiled. 1887 188820090119: 1889 NTFS has been removed from GENERIC kernel on amd64 to match 1890 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1891 will load ntfs.ko module automatically when NTFS support is 1892 actually needed, unless ntfs.ko is not installed or security 1893 level prohibits loading kernel modules. If either is the case, 1894 "options NTFS" has to be added into kernel config. 1895 189620090115: 1897 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1898 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1899 800061. User space tools that rely on the size of struct tcpcb in 1900 tcp_var.h (e.g. sockstat) need to be recompiled. 1901 190220081225: 1903 ng_tty(4) module updated to match the new TTY subsystem. 1904 Due to API change, user-level applications must be updated. 1905 New API support added to mpd5 CVS and expected to be present 1906 in next mpd5.3 release. 1907 190820081219: 1909 With __FreeBSD_version 800060 the makefs tool is part of 1910 the base system (it was a port). 1911 191220081216: 1913 The afdata and ifnet locks have been changed from mutexes to 1914 rwlocks, network modules will need to be re-compiled. 1915 191620081214: 1917 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1918 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1919 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1920 architecture and 40 bytes on 64-bit architecture. The userland 1921 applications "arp" and "ndp" have been updated accordingly. 1922 The output from "netstat -r" shows only routing entries and 1923 none of the L2 information. 1924 192520081130: 1926 __FreeBSD_version 800057 marks the switchover from the 1927 binary ath hal to source code. Users must add the line: 1928 1929 options AH_SUPPORT_AR5416 1930 1931 to their kernel config files when specifying: 1932 1933 device ath_hal 1934 1935 The ath_hal module no longer exists; the code is now compiled 1936 together with the driver in the ath module. It is now 1937 possible to tailor chip support (i.e. reduce the set of chips 1938 and thereby the code size); consult ath_hal(4) for details. 1939 194020081121: 1941 __FreeBSD_version 800054 adds memory barriers to 1942 <machine/atomic.h>, new interfaces to ifnet to facilitate 1943 multiple hardware transmit queues for cards that support 1944 them, and a lock-less ring-buffer implementation to 1945 enable drivers to more efficiently manage queueing of 1946 packets. 1947 194820081117: 1949 A new version of ZFS (version 13) has been merged to -HEAD. 1950 This version has zpool attribute "listsnapshots" off by 1951 default, which means "zfs list" does not show snapshots, 1952 and is the same as Solaris behavior. 1953 195420081028: 1955 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1956 195720081009: 1958 The uhci, ohci, ehci and slhci USB Host controller drivers have 1959 been put into separate modules. If you load the usb module 1960 separately through loader.conf you will need to load the 1961 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1962 controller add the following to loader.conf: 1963 1964 uhci_load="YES" 1965 ehci_load="YES" 1966 196720081009: 1968 The ABI used by the PMC toolset has changed. Please keep 1969 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1970 sync. 1971 197220081009: 1973 atapci kernel module now includes only generic PCI ATA 1974 driver. AHCI driver moved to ataahci kernel module. 1975 All vendor-specific code moved into separate kernel modules: 1976 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1977 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1978 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1979 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1980 198120080820: 1982 The TTY subsystem of the kernel has been replaced by a new 1983 implementation, which provides better scalability and an 1984 improved driver model. Most common drivers have been migrated to 1985 the new TTY subsystem, while others have not. The following 1986 drivers have not yet been ported to the new TTY layer: 1987 1988 PCI/ISA: 1989 cy, digi, rc, rp, sio 1990 1991 USB: 1992 ubser, ucycom 1993 1994 Line disciplines: 1995 ng_h4, ng_tty, ppp, sl, snp 1996 1997 Adding these drivers to your kernel configuration file shall 1998 cause compilation to fail. 1999 200020080818: 2001 ntpd has been upgraded to 4.2.4p5. 2002 200320080801: 2004 OpenSSH has been upgraded to 5.1p1. 2005 2006 For many years, FreeBSD's version of OpenSSH preferred DSA 2007 over RSA for host and user authentication keys. With this 2008 upgrade, we've switched to the vendor's default of RSA over 2009 DSA. This may cause upgraded clients to warn about unknown 2010 host keys even for previously known hosts. Users should 2011 follow the usual procedure for verifying host keys before 2012 accepting the RSA key. 2013 2014 This can be circumvented by setting the "HostKeyAlgorithms" 2015 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 2016 command line. 2017 2018 Please note that the sequence of keys offered for 2019 authentication has been changed as well. You may want to 2020 specify IdentityFile in a different order to revert this 2021 behavior. 2022 202320080713: 2024 The sio(4) driver has been removed from the i386 and amd64 2025 kernel configuration files. This means uart(4) is now the 2026 default serial port driver on those platforms as well. 2027 2028 To prevent collisions with the sio(4) driver, the uart(4) driver 2029 uses different names for its device nodes. This means the 2030 onboard serial port will now most likely be called "ttyu0" 2031 instead of "ttyd0". You may need to reconfigure applications to 2032 use the new device names. 2033 2034 When using the serial port as a boot console, be sure to update 2035 /boot/device.hints and /etc/ttys before booting the new kernel. 2036 If you forget to do so, you can still manually specify the hints 2037 at the loader prompt: 2038 2039 set hint.uart.0.at="isa" 2040 set hint.uart.0.port="0x3F8" 2041 set hint.uart.0.flags="0x10" 2042 set hint.uart.0.irq="4" 2043 boot -s 2044 204520080609: 2046 The gpt(8) utility has been removed. Use gpart(8) to partition 2047 disks instead. 2048 204920080603: 2050 The version that Linuxulator emulates was changed from 2.4.2 2051 to 2.6.16. If you experience any problems with Linux binaries 2052 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2053 if it fixes the problem contact emulation mailing list. 2054 205520080525: 2056 ISDN4BSD (I4B) was removed from the src tree. You may need to 2057 update a your kernel configuration and remove relevant entries. 2058 205920080509: 2060 I have checked in code to support multiple routing tables. 2061 See the man pages setfib(1) and setfib(2). 2062 This is a hopefully backwards compatible version, 2063 but to make use of it you need to compile your kernel 2064 with options ROUTETABLES=2 (or more up to 16). 2065 206620080420: 2067 The 802.11 wireless support was redone to enable multi-bss 2068 operation on devices that are capable. The underlying device 2069 is no longer used directly but instead wlanX devices are 2070 cloned with ifconfig. This requires changes to rc.conf files. 2071 For example, change: 2072 ifconfig_ath0="WPA DHCP" 2073 to 2074 wlans_ath0=wlan0 2075 ifconfig_wlan0="WPA DHCP" 2076 see rc.conf(5) for more details. In addition, mergemaster of 2077 /etc/rc.d is highly recommended. Simultaneous update of userland 2078 and kernel wouldn't hurt either. 2079 2080 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2081 modules were merged into the base wlan module. All references 2082 to these modules (e.g. in kernel config files) must be removed. 2083 208420080408: 2085 psm(4) has gained write(2) support in native operation level. 2086 Arbitrary commands can be written to /dev/psm%d and status can 2087 be read back from it. Therefore, an application is responsible 2088 for status validation and error recovery. It is a no-op in 2089 other operation levels. 2090 209120080312: 2092 Support for KSE threading has been removed from the kernel. To 2093 run legacy applications linked against KSE libmap.conf may 2094 be used. The following libmap.conf may be used to ensure 2095 compatibility with any prior release: 2096 2097 libpthread.so.1 libthr.so.1 2098 libpthread.so.2 libthr.so.2 2099 libkse.so.3 libthr.so.3 2100 210120080301: 2102 The layout of struct vmspace has changed. This affects libkvm 2103 and any executables that link against libkvm and use the 2104 kvm_getprocs() function. In particular, but not exclusively, 2105 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2106 The effects are minimal, but it's advisable to upgrade world 2107 nonetheless. 2108 210920080229: 2110 The latest em driver no longer has support in it for the 2111 82575 adapter, this is now moved to the igb driver. The 2112 split was done to make new features that are incompatible 2113 with older hardware easier to do. 2114 211520080220: 2116 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2117 likewise the kernel option is now GEOM_LINUX_LVM. 2118 211920080211: 2120 The default NFS mount mode has changed from UDP to TCP for 2121 increased reliability. If you rely on (insecurely) NFS 2122 mounting across a firewall you may need to update your 2123 firewall rules. 2124 212520080208: 2126 Belatedly note the addition of m_collapse for compacting 2127 mbuf chains. 2128 212920080126: 2130 The fts(3) structures have been changed to use adequate 2131 integer types for their members and so to be able to cope 2132 with huge file trees. The old fts(3) ABI is preserved 2133 through symbol versioning in libc, so third-party binaries 2134 using fts(3) should still work, although they will not take 2135 advantage of the extended types. At the same time, some 2136 third-party software might fail to build after this change 2137 due to unportable assumptions made in its source code about 2138 fts(3) structure members. Such software should be fixed 2139 by its vendor or, in the worst case, in the ports tree. 2140 FreeBSD_version 800015 marks this change for the unlikely 2141 case that a portable fix is impossible. 2142 214320080123: 2144 To upgrade to -current after this date, you must be running 2145 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2146 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2147 214820071128: 2149 The ADAPTIVE_GIANT kernel option has been retired because its 2150 functionality is the default now. 2151 215220071118: 2153 The AT keyboard emulation of sunkbd(4) has been turned on 2154 by default. In order to make the special symbols of the Sun 2155 keyboards driven by sunkbd(4) work under X these now have 2156 to be configured the same way as Sun USB keyboards driven 2157 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2158 2159 Option "XkbLayout" "us" 2160 Option "XkbRules" "xorg" 2161 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2162 216320071024: 2164 It has been decided that it is desirable to provide ABI 2165 backwards compatibility to the FreeBSD 4/5/6 versions of the 2166 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2167 broken with the introduction of PCI domain support (see the 2168 20070930 entry). Unfortunately, this required the ABI of 2169 PCIOCGETCONF to be broken again in order to be able to 2170 provide backwards compatibility to the old version of that 2171 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2172 again. As for prominent ports this affects neither pciutils 2173 nor xorg-server this time, the hal port needs to be rebuilt 2174 however. 2175 217620071020: 2177 The misnamed kthread_create() and friends have been renamed 2178 to kproc_create() etc. Many of the callers already 2179 used kproc_start().. 2180 I will return kthread_create() and friends in a while 2181 with implementations that actually create threads, not procs. 2182 Renaming corresponds with version 800002. 2183 218420071010: 2185 RELENG_7 branched. 2186 2187COMMON ITEMS: 2188 2189 General Notes 2190 ------------- 2191 Avoid using make -j when upgrading. While generally safe, there are 2192 sometimes problems using -j to upgrade. If your upgrade fails with 2193 -j, please try again without -j. From time to time in the past there 2194 have been problems using -j with buildworld and/or installworld. This 2195 is especially true when upgrading between "distant" versions (eg one 2196 that cross a major release boundary or several minor releases, or when 2197 several months have passed on the -current branch). 2198 2199 Sometimes, obscure build problems are the result of environment 2200 poisoning. This can happen because the make utility reads its 2201 environment when searching for values for global variables. To run 2202 your build attempts in an "environmental clean room", prefix all make 2203 commands with 'env -i '. See the env(1) manual page for more details. 2204 2205 When upgrading from one major version to another it is generally best 2206 to upgrade to the latest code in the currently installed branch first, 2207 then do an upgrade to the new branch. This is the best-tested upgrade 2208 path, and has the highest probability of being successful. Please try 2209 this approach before reporting problems with a major version upgrade. 2210 2211 When upgrading a live system, having a root shell around before 2212 installing anything can help undo problems. Not having a root shell 2213 around can lead to problems if pam has changed too much from your 2214 starting point to allow continued authentication after the upgrade. 2215 2216 ZFS notes 2217 --------- 2218 When upgrading the boot ZFS pool to a new version, always follow 2219 these two steps: 2220 2221 1.) recompile and reinstall the ZFS boot loader and boot block 2222 (this is part of "make buildworld" and "make installworld") 2223 2224 2.) update the ZFS boot block on your boot drive 2225 2226 The following example updates the ZFS boot block on the first 2227 partition (freebsd-boot) of a GPT partitioned drive ad0: 2228 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2229 2230 Non-boot pools do not need these updates. 2231 2232 To build a kernel 2233 ----------------- 2234 If you are updating from a prior version of FreeBSD (even one just 2235 a few days old), you should follow this procedure. It is the most 2236 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2237 2238 make kernel-toolchain 2239 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2240 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2241 2242 To test a kernel once 2243 --------------------- 2244 If you just want to boot a kernel once (because you are not sure 2245 if it works, or if you want to boot a known bad kernel to provide 2246 debugging information) run 2247 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2248 nextboot -k testkernel 2249 2250 To just build a kernel when you know that it won't mess you up 2251 -------------------------------------------------------------- 2252 This assumes you are already running a CURRENT system. Replace 2253 ${arch} with the architecture of your machine (e.g. "i386", 2254 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2255 2256 cd src/sys/${arch}/conf 2257 config KERNEL_NAME_HERE 2258 cd ../compile/KERNEL_NAME_HERE 2259 make depend 2260 make 2261 make install 2262 2263 If this fails, go to the "To build a kernel" section. 2264 2265 To rebuild everything and install it on the current system. 2266 ----------------------------------------------------------- 2267 # Note: sometimes if you are running current you gotta do more than 2268 # is listed here if you are upgrading from a really old current. 2269 2270 <make sure you have good level 0 dumps> 2271 make buildworld 2272 make kernel KERNCONF=YOUR_KERNEL_HERE 2273 [1] 2274 <reboot in single user> [3] 2275 mergemaster -p [5] 2276 make installworld 2277 mergemaster -i [4] 2278 make delete-old [6] 2279 <reboot> 2280 2281 To cross-install current onto a separate partition 2282 -------------------------------------------------- 2283 # In this approach we use a separate partition to hold 2284 # current's root, 'usr', and 'var' directories. A partition 2285 # holding "/", "/usr" and "/var" should be about 2GB in 2286 # size. 2287 2288 <make sure you have good level 0 dumps> 2289 <boot into -stable> 2290 make buildworld 2291 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2292 <maybe newfs current's root partition> 2293 <mount current's root partition on directory ${CURRENT_ROOT}> 2294 make installworld DESTDIR=${CURRENT_ROOT} 2295 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2296 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2297 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2298 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2299 <reboot into current> 2300 <do a "native" rebuild/install as described in the previous section> 2301 <maybe install compatibility libraries from ports/misc/compat*> 2302 <reboot> 2303 2304 2305 To upgrade in-place from stable to current 2306 ---------------------------------------------- 2307 <make sure you have good level 0 dumps> 2308 make buildworld [9] 2309 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2310 [1] 2311 <reboot in single user> [3] 2312 mergemaster -p [5] 2313 make installworld 2314 mergemaster -i [4] 2315 make delete-old [6] 2316 <reboot> 2317 2318 Make sure that you've read the UPDATING file to understand the 2319 tweaks to various things you need. At this point in the life 2320 cycle of current, things change often and you are on your own 2321 to cope. The defaults can also change, so please read ALL of 2322 the UPDATING entries. 2323 2324 Also, if you are tracking -current, you must be subscribed to 2325 freebsd-current@freebsd.org. Make sure that before you update 2326 your sources that you have read and understood all the recent 2327 messages there. If in doubt, please track -stable which has 2328 much fewer pitfalls. 2329 2330 [1] If you have third party modules, such as vmware, you 2331 should disable them at this point so they don't crash your 2332 system on reboot. 2333 2334 [3] From the bootblocks, boot -s, and then do 2335 fsck -p 2336 mount -u / 2337 mount -a 2338 cd src 2339 adjkerntz -i # if CMOS is wall time 2340 Also, when doing a major release upgrade, it is required that 2341 you boot into single user mode to do the installworld. 2342 2343 [4] Note: This step is non-optional. Failure to do this step 2344 can result in a significant reduction in the functionality of the 2345 system. Attempting to do it by hand is not recommended and those 2346 that pursue this avenue should read this file carefully, as well 2347 as the archives of freebsd-current and freebsd-hackers mailing lists 2348 for potential gotchas. The -U option is also useful to consider. 2349 See mergemaster(8) for more information. 2350 2351 [5] Usually this step is a noop. However, from time to time 2352 you may need to do this if you get unknown user in the following 2353 step. It never hurts to do it all the time. You may need to 2354 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2355 install) after the buildworld before this step if you last updated 2356 from current before 20130425 or from -stable before 20130430. 2357 2358 [6] This only deletes old files and directories. Old libraries 2359 can be deleted by "make delete-old-libs", but you have to make 2360 sure that no program is using those libraries anymore. 2361 2362 [8] In order to have a kernel that can run the 4.x binaries needed to 2363 do an installworld, you must include the COMPAT_FREEBSD4 option in 2364 your kernel. Failure to do so may leave you with a system that is 2365 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2366 required to run the 5.x binaries on more recent kernels. And so on 2367 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2368 2369 Make sure that you merge any new devices from GENERIC since the 2370 last time you updated your kernel config file. 2371 2372 [9] When checking out sources, you must include the -P flag to have 2373 cvs prune empty directories. 2374 2375 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2376 "?=" instead of the "=" assignment operator, so that buildworld can 2377 override the CPUTYPE if it needs to. 2378 2379 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2380 not on the command line, or in /etc/make.conf. buildworld will 2381 warn if it is improperly defined. 2382FORMAT: 2383 2384This file contains a list, in reverse chronological order, of major 2385breakages in tracking -current. It is not guaranteed to be a complete 2386list of such breakages, and only contains entries since October 10, 2007. 2387If you need to see UPDATING entries from before that date, you will need 2388to fetch an UPDATING file from an older FreeBSD release. 2389 2390Copyright information: 2391 2392Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2393 2394Redistribution, publication, translation and use, with or without 2395modification, in full or in part, in any form or format of this 2396document are permitted without further permission from the author. 2397 2398THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2399IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2400WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2401DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2402INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2403(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2404SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2405HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2406STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2407IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2408POSSIBILITY OF SUCH DAMAGE. 2409 2410Contact Warner Losh if you have any questions about your use of 2411this document. 2412 2413$FreeBSD: releng/10.1/UPDATING 306230 2016-09-23 07:48:34Z delphij $ 2414