UPDATING revision 268813
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 1920140717: 20 It is no longer necessary to include the dwarf version in your DEBUG 21 options in your kernel config file. The bug that required it to be 22 placed in the config file has bene fixed. DEBUG should now just 23 contain -g. The build system will automatically update things 24 to do the right thing. 25 2620140715: 27 Several ABI breaking changes were merged to CTL and new iSCSI code. 28 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 29 iscsictl need to be rebuilt to work with a new kernel. 30 3120140708: 32 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 33 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 34 which differs from the behaviour controlled by this knob.) 35 3620140608: 37 On i386 and amd64 systems, the onifconsole flag is now set by default 38 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 39 as a login TTY if it is set in the bootloader as an active kernel 40 console. No changes in behavior should result otherwise. To revert to 41 the previous behavior, set ttyu0 to "off" in /etc/ttys. 42 4320140512: 44 Clang and llvm have been upgraded to 3.4.1 release. 45 4620140321: 47 Clang and llvm have been upgraded to 3.4 release. 48 4920140306: 50 If a Makefile in a tests/ directory was auto-generating a Kyuafile 51 instead of providing an explicit one, this would prevent such 52 Makefile from providing its own Kyuafile in the future during 53 NO_CLEAN builds. This has been fixed in the Makefiles but manual 54 intervention is needed to clean an objdir if you use NO_CLEAN: 55 # find /usr/obj -name Kyuafile | xargs rm -f 56 5720140303: 58 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 59 capability mode support. Please note that enabling the feature in 60 kernel is still highly recommended. 61 6220140227: 63 OpenSSH is now built with sandbox support, and will use sandbox as 64 the default privilege separation method. This requires Capsicum 65 capability mode support in kernel. 66 6720140216: 68 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 69 been deprecated and will not be part of FreeBSD 11.0 and later 70 releases. If you use this driver, please consider switching to 71 the nfe(4) driver instead. 72 7320140120: 74 10.0-RELEASE. 75 7620131216: 77 The behavior of gss_pseudo_random() for the krb5 mechanism 78 has changed, for applications requesting a longer random string 79 than produced by the underlying enctype's pseudo-random() function. 80 In particular, the random string produced from a session key of 81 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 82 be different at the 17th octet and later, after this change. 83 The counter used in the PRF+ construction is now encoded as a 84 big-endian integer in accordance with RFC 4402. 85 __FreeBSD_version is bumped to 1000701. 86 8720131108: 88 The WITHOUT_ATF build knob has been removed and its functionality 89 has been subsumed into the more generic WITHOUT_TESTS. If you were 90 using the former to disable the build of the ATF libraries, you 91 should change your settings to use the latter. 92 9320131031: 94 The default version of mtree is nmtree which is obtained from 95 NetBSD. The output is generally the same, but may vary 96 slightly. If you found you need identical output adding 97 "-F freebsd9" to the command line should do the trick. For the 98 time being, the old mtree is available as fmtree. 99 10020131014: 101 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 102 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 103 1.1.4_8 and verify bsdyml not linked in, before running "make 104 delete-old-libs": 105 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 106 or 107 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 108 10920131010: 110 The rc.d/jail script has been updated to support jail(8) 111 configuration file. The "jail_<jname>_*" rc.conf(5) variables 112 for per-jail configuration are automatically converted to 113 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 114 This is transparently backward compatible. See below about some 115 incompatibilities and rc.conf(5) manual page for more details. 116 117 These variables are now deprecated in favor of jail(8) configuration 118 file. One can use "rc.d/jail config <jname>" command to generate 119 a jail(8) configuration file in /var/run/jail.<jname>.conf without 120 running the jail(8) utility. The default pathname of the 121 configuration file is /etc/jail.conf and can be specified by 122 using $jail_conf or $jail_<jname>_conf variables. 123 124 Please note that jail_devfs_ruleset accepts an integer at 125 this moment. Please consider to rewrite the ruleset name 126 with an integer. 127 12820130930: 129 BIND has been removed from the base system. If all you need 130 is a local resolver, simply enable and start the local_unbound 131 service instead. Otherwise, several versions of BIND are 132 available in the ports tree. The dns/bind99 port is one example. 133 134 With this change, nslookup(1) and dig(1) are no longer in the base 135 system. Users should instead use host(1) and drill(1) which are 136 in the base system. Alternatively, nslookup and dig can 137 be obtained by installing the dns/bind-tools port. 138 13920130916: 140 With the addition of unbound(8), a new unbound user is now 141 required during installworld. "mergemaster -p" can be used to 142 add the user prior to installworld, as documented in the handbook. 143 14420130911: 145 OpenSSH is now built with DNSSEC support, and will by default 146 silently trust signed SSHFP records. This can be controlled with 147 the VerifyHostKeyDNS client configuration setting. DNSSEC support 148 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 149 15020130906: 151 The GNU Compiler Collection and C++ standard library (libstdc++) 152 are no longer built by default on platforms where clang is the system 153 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 154 options in src.conf. 155 15620130905: 157 The PROCDESC kernel option is now part of the GENERIC kernel 158 configuration and is required for the rwhod(8) to work. 159 If you are using custom kernel configuration, you should include 160 'options PROCDESC'. 161 16220130905: 163 The API and ABI related to the Capsicum framework was modified 164 in backward incompatible way. The userland libraries and programs 165 have to be recompiled to work with the new kernel. This includes the 166 following libraries and programs, but the whole buildworld is 167 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 168 kdump, procstat, rwho, rwhod, uniq. 169 17020130903: 171 AES-NI intrinsic support has been added to gcc. The AES-NI module 172 has been updated to use this support. A new gcc is required to build 173 the aesni module on both i386 and amd64. 174 17520130821: 176 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 177 Thus "device padlock_rng" and "device rdrand_rng" should be 178 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 179 18020130813: 181 WITH_ICONV has been split into two feature sets. WITH_ICONV now 182 enables just the iconv* functionality and is now on by default. 183 WITH_LIBICONV_COMPAT enables the libiconv api and link time 184 compatability. Set WITHOUT_ICONV to build the old way. 185 If you have been using WITH_ICONV before, you will very likely 186 need to turn on WITH_LIBICONV_COMPAT. 187 18820130806: 189 INVARIANTS option now enables DEBUG for code with OpenSolaris and 190 Illumos origin, including ZFS. If you have INVARIANTS in your 191 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 192 explicitly. 193 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 194 locks if WITNESS option was set. Because that generated a lot of 195 witness(9) reports and all of them were believed to be false 196 positives, this is no longer done. New option OPENSOLARIS_WITNESS 197 can be used to achieve the previous behavior. 198 19920130806: 200 Timer values in IPv6 data structures now use time_uptime instead 201 of time_second. Although this is not a user-visible functional 202 change, userland utilities which directly use them---ndp(8), 203 rtadvd(8), and rtsold(8) in the base system---need to be updated 204 to r253970 or later. 205 20620130802: 207 find -delete can now delete the pathnames given as arguments, 208 instead of only files found below them or if the pathname did 209 not contain any slashes. Formerly, the following error message 210 would result: 211 212 find: -delete: <path>: relative path potentially not safe 213 214 Deleting the pathnames given as arguments can be prevented 215 without error messages using -mindepth 1 or by changing 216 directory and passing "." as argument to find. This works in the 217 old as well as the new version of find. 218 21920130726: 220 Behavior of devfs rules path matching has been changed. 221 Pattern is now always matched against fully qualified devfs 222 path and slash characters must be explicitly matched by 223 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 224 subdirectories must be reviewed. 225 22620130716: 227 The default ARM ABI has changed to the ARM EABI. The old ABI is 228 incompatible with the ARM EABI and all programs and modules will 229 need to be rebuilt to work with a new kernel. 230 231 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 232 233 NOTE: Support for the old ABI will be removed in the future and 234 users are advised to upgrade. 235 23620130709: 237 pkg_install has been disconnected from the build if you really need it 238 you should add WITH_PKGTOOLS in your src.conf(5). 239 24020130709: 241 Most of network statistics structures were changed to be able 242 keep 64-bits counters. Thus all tools, that work with networking 243 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 244 24520130629: 246 Fix targets that run multiple make's to use && rather than ; 247 so that subsequent steps depend on success of previous. 248 249 NOTE: if building 'universe' with -j* on stable/8 or stable/9 250 it would be better to start the build using bmake, to avoid 251 overloading the machine. 252 25320130618: 254 Fix a bug that allowed a tracing process (e.g. gdb) to write 255 to a memory-mapped file in the traced process's address space 256 even if neither the traced process nor the tracing process had 257 write access to that file. 258 25920130615: 260 CVS has been removed from the base system. An exact copy 261 of the code is available from the devel/cvs port. 262 26320130613: 264 Some people report the following error after the switch to bmake: 265 266 make: illegal option -- J 267 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 268 ... 269 *** [buildworld] Error code 2 270 271 this likely due to an old instance of make in 272 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 273 which src/Makefile will use that blindly, if it exists, so if 274 you see the above error: 275 276 rm -rf `make -V MAKEPATH` 277 278 should resolve it. 279 28020130516: 281 Use bmake by default. 282 Whereas before one could choose to build with bmake via 283 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 284 make. The goal is to remove these knobs for 10-RELEASE. 285 286 It is worth noting that bmake (like gmake) treats the command 287 line as the unit of failure, rather than statements within the 288 command line. Thus '(cd some/where && dosomething)' is safer 289 than 'cd some/where; dosomething'. The '()' allows consistent 290 behavior in parallel build. 291 29220130429: 293 Fix a bug that allows NFS clients to issue READDIR on files. 294 29520130426: 296 The WITHOUT_IDEA option has been removed because 297 the IDEA patent expired. 298 29920130426: 300 The sysctl which controls TRIM support under ZFS has been renamed 301 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 302 enabled by default. 303 30420130425: 305 The mergemaster command now uses the default MAKEOBJDIRPREFIX 306 rather than creating it's own in the temporary directory in 307 order allow access to bootstrapped versions of tools such as 308 install and mtree. When upgrading from version of FreeBSD where 309 the install command does not support -l, you will need to 310 install a new mergemaster command if mergemaster -p is required. 311 This can be accomplished with the command (cd src/usr.sbin/mergemaster 312 && make install). 313 31420130404: 315 Legacy ATA stack, disabled and replaced by new CAM-based one since 316 FreeBSD 9.0, completely removed from the sources. Kernel modules 317 atadisk and atapi*, user-level tools atacontrol and burncd are 318 removed. Kernel option `options ATA_CAM` is now permanently enabled 319 and removed. 320 32120130319: 322 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 323 and socketpair(2). Software, in particular Kerberos, may 324 automatically detect and use these during building. The resulting 325 binaries will not work on older kernels. 326 32720130308: 328 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 329 information, see the respective 20130304 entry). 330 33120130304: 332 Recent commits to callout(9) changed the size of struct callout, 333 so the KBI is probably heavily disturbed. Also, some functions 334 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 335 by macros. Every kernel module using it won't load, so rebuild 336 is requested. 337 338 The ctl device has been re-enabled in GENERIC for i386 and amd64, 339 but does not initialize by default (because of the new CTL_DISABLE 340 option) to save memory. To re-enable it, remove the CTL_DISABLE 341 option from the kernel config file or set kern.cam.ctl.disable=0 342 in /boot/loader.conf. 343 34420130301: 345 The ctl device has been disabled in GENERIC for i386 and amd64. 346 This was done due to the extra memory being allocated at system 347 initialisation time by the ctl driver which was only used if 348 a CAM target device was created. This makes a FreeBSD system 349 unusable on 128MB or less of RAM. 350 35120130208: 352 A new compression method (lz4) has been merged to -HEAD. Please 353 refer to zpool-features(7) for more information. 354 355 Please refer to the "ZFS notes" section of this file for information 356 on upgrading boot ZFS pools. 357 35820130129: 359 A BSD-licensed patch(1) variant has been added and is installed 360 as bsdpatch, being the GNU version the default patch. 361 To inverse the logic and use the BSD-licensed one as default, 362 while having the GNU version installed as gnupatch, rebuild 363 and install world with the WITH_BSD_PATCH knob set. 364 36520130121: 366 Due to the use of the new -l option to install(1) during build 367 and install, you must take care not to directly set the INSTALL 368 make variable in your /etc/make.conf, /etc/src.conf, or on the 369 command line. If you wish to use the -C flag for all installs 370 you may be able to add INSTALL+=-C to /etc/make.conf or 371 /etc/src.conf. 372 37320130118: 374 The install(1) option -M has changed meaning and now takes an 375 argument that is a file or path to append logs to. In the 376 unlikely event that -M was the last option on the command line 377 and the command line contained at least two files and a target 378 directory the first file will have logs appended to it. The -M 379 option served little practical purpose in the last decade so its 380 use is expected to be extremely rare. 381 38220121223: 383 After switching to Clang as the default compiler some users of ZFS 384 on i386 systems started to experience stack overflow kernel panics. 385 Please consider using 'options KSTACK_PAGES=4' in such configurations. 386 38720121222: 388 GEOM_LABEL now mangles label names read from file system metadata. 389 Mangling affect labels containing spaces, non-printable characters, 390 '%' or '"'. Device names in /etc/fstab and other places may need to 391 be updated. 392 39320121217: 394 By default, only the 10 most recent kernel dumps will be saved. To 395 restore the previous behaviour (no limit on the number of kernel dumps 396 stored in the dump directory) add the following line to /etc/rc.conf: 397 398 savecore_flags="" 399 40020121201: 401 With the addition of auditdistd(8), a new auditdistd user is now 402 required during installworld. "mergemaster -p" can be used to 403 add the user prior to installworld, as documented in the handbook. 404 40520121117: 406 The sin6_scope_id member variable in struct sockaddr_in6 is now 407 filled by the kernel before passing the structure to the userland via 408 sysctl or routing socket. This means the KAME-specific embedded scope 409 id in sin6_addr.s6_addr[2] is always cleared in userland application. 410 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 411 __FreeBSD_version is bumped to 1000025. 412 41320121105: 414 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 415 This means that the world and kernel will be compiled with clang 416 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 417 and /usr/bin/cpp. To disable this behavior and revert to building 418 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 419 of current may need to bootstrap WITHOUT_CLANG first if the clang 420 build fails (its compatibility window doesn't extend to the 9 stable 421 branch point). 422 42320121102: 424 The IPFIREWALL_FORWARD kernel option has been removed. Its 425 functionality now turned on by default. 426 42720121023: 428 The ZERO_COPY_SOCKET kernel option has been removed and 429 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 430 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 431 mechanism which is not safe and may result in kernel crashes. 432 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 433 driver supports disposeable external page sized mbuf storage. 434 Proper replacements for both zero-copy mechanisms are under 435 consideration and will eventually lead to complete removal 436 of the two kernel options. 437 43820121023: 439 The IPv4 network stack has been converted to network byte 440 order. The following modules need to be recompiled together 441 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 442 pf(4), ipfw(4), ng_ipfw(4), stf(4). 443 44420121022: 445 Support for non-MPSAFE filesystems was removed from VFS. The 446 VFS_VERSION was bumped, all filesystem modules shall be 447 recompiled. 448 44920121018: 450 All the non-MPSAFE filesystems have been disconnected from 451 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 452 portalfs, smbfs, xfs. 453 45420121016: 455 The interface cloning API and ABI has changed. The following 456 modules need to be recompiled together with kernel: 457 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 458 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 459 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 460 46120121015: 462 The sdhci driver was split in two parts: sdhci (generic SD Host 463 Controller logic) and sdhci_pci (actual hardware driver). 464 No kernel config modifications are required, but if you 465 load sdhc as a module you must switch to sdhci_pci instead. 466 46720121014: 468 Import the FUSE kernel and userland support into base system. 469 47020121013: 471 The GNU sort(1) program has been removed since the BSD-licensed 472 sort(1) has been the default for quite some time and no serious 473 problems have been reported. The corresponding WITH_GNU_SORT 474 knob has also gone. 475 47620121006: 477 The pfil(9) API/ABI for AF_INET family has been changed. Packet 478 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 479 with new kernel. 480 48120121001: 482 The net80211(4) ABI has been changed to allow for improved driver 483 PS-POLL and power-save support. All wireless drivers need to be 484 recompiled to work with the new kernel. 485 48620120913: 487 The random(4) support for the VIA hardware random number 488 generator (`PADLOCK') is no longer enabled unconditionally. 489 Add the padlock_rng device in the custom kernel config if 490 needed. The GENERIC kernels on i386 and amd64 do include the 491 device, so the change only affects the custom kernel 492 configurations. 493 49420120908: 495 The pf(4) packet filter ABI has been changed. pfctl(8) and 496 snmp_pf module need to be recompiled to work with new kernel. 497 49820120828: 499 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 500 to -HEAD. Pools that have empty_bpobj in active state can not be 501 imported read-write with ZFS implementations that do not support 502 this feature. For more information read the zpool-features(5) 503 manual page. 504 50520120727: 506 The sparc64 ZFS loader has been changed to no longer try to auto- 507 detect ZFS providers based on diskN aliases but now requires these 508 to be explicitly listed in the OFW boot-device environment variable. 509 51020120712: 511 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 512 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 513 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 514 51520120712: 516 The following sysctls and tunables have been renamed for consistency 517 with other variables: 518 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 519 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 520 52120120628: 522 The sort utility has been replaced with BSD sort. For now, GNU sort 523 is also available as "gnusort" or the default can be set back to 524 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 525 installed as "bsdsort". 526 52720120611: 528 A new version of ZFS (pool version 5000) has been merged to -HEAD. 529 Starting with this version the old system of ZFS pool versioning 530 is superseded by "feature flags". This concept enables forward 531 compatibility against certain future changes in functionality of ZFS 532 pools. The first read-only compatible "feature flag" for ZFS pools 533 is named "com.delphix:async_destroy". For more information 534 read the new zpool-features(5) manual page. 535 Please refer to the "ZFS notes" section of this file for information 536 on upgrading boot ZFS pools. 537 53820120417: 539 The malloc(3) implementation embedded in libc now uses sources imported 540 as contrib/jemalloc. The most disruptive API change is to 541 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 542 delete it prior to installworld, and optionally re-create it using the 543 new format after rebooting. See malloc.conf(5) for details 544 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 545 NAMESPACE section). 546 54720120328: 548 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 549 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 550 now spelled mips. This is to aid compatibility with third-party 551 software that expects this naming scheme in uname(3). Little-endian 552 settings are unchanged. If you are updating a big-endian mips64 machine 553 from before this change, you may need to set MACHINE_ARCH=mips64 in 554 your environment before the new build system will recognize your machine. 555 55620120306: 557 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 558 platforms. 559 56020120229: 561 Now unix domain sockets behave "as expected" on nullfs(5). Previously 562 nullfs(5) did not pass through all behaviours to the underlying layer, 563 as a result if we bound to a socket on the lower layer we could connect 564 only to the lower path; if we bound to the upper layer we could connect 565 only to the upper path. The new behavior is one can connect to both the 566 lower and the upper paths regardless what layer path one binds to. 567 56820120211: 569 The getifaddrs upgrade path broken with 20111215 has been restored. 570 If you have upgraded in between 20111215 and 20120209 you need to 571 recompile libc again with your kernel. You still need to recompile 572 world to be able to configure CARP but this restriction already 573 comes from 20111215. 574 57520120114: 576 The set_rcvar() function has been removed from /etc/rc.subr. All 577 base and ports rc.d scripts have been updated, so if you have a 578 port installed with a script in /usr/local/etc/rc.d you can either 579 hand-edit the rcvar= line, or reinstall the port. 580 581 An easy way to handle the mass-update of /etc/rc.d: 582 rm /etc/rc.d/* && mergemaster -i 583 58420120109: 585 panic(9) now stops other CPUs in the SMP systems, disables interrupts 586 on the current CPU and prevents other threads from running. 587 This behavior can be reverted using the kern.stop_scheduler_on_panic 588 tunable/sysctl. 589 The new behavior can be incompatible with kern.sync_on_panic. 590 59120111215: 592 The carp(4) facility has been changed significantly. Configuration 593 of the CARP protocol via ifconfig(8) has changed, as well as format 594 of CARP events submitted to devd(8) has changed. See manual pages 595 for more information. The arpbalance feature of carp(4) is currently 596 not supported anymore. 597 598 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 599 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 600 need to be recompiled. 601 60220111122: 603 The acpi_wmi(4) status device /dev/wmistat has been renamed to 604 /dev/wmistat0. 605 60620111108: 607 The option VFS_ALLOW_NONMPSAFE option has been added in order to 608 explicitely support non-MPSAFE filesystems. 609 It is on by default for all supported platform at this present 610 time. 611 61220111101: 613 The broken amd(4) driver has been replaced with esp(4) in the amd64, 614 i386 and pc98 GENERIC kernel configuration files. 615 61620110930: 617 sysinstall has been removed 618 61920110923: 620 The stable/9 branch created in subversion. This corresponds to the 621 RELENG_9 branch in CVS. 622 62320110913: 624 This commit modifies vfs_register() so that it uses a hash 625 calculation to set vfc_typenum, which is enabled by default. 626 The first time a system is booted after this change, the 627 vfc_typenum values will change for all file systems. The 628 main effect of this is a change to the NFS server file handles 629 for file systems that use vfc_typenum in their fsid, such as ZFS. 630 It will, however, prevent vfc_typenum from changing when file 631 systems are loaded in a different order for subsequent reboots. 632 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 633 until you are ready to remount all NFS clients after a reboot. 634 63520110828: 636 Bump the shared library version numbers for libraries that 637 do not use symbol versioning, have changed the ABI compared 638 to stable/8 and which shared library version was not bumped. 639 Done as part of 9.0-RELEASE cycle. 640 64120110815: 642 During the merge of Capsicum features, the fget(9) KPI was modified. 643 This may require the rebuilding of out-of-tree device drivers -- 644 issues have been reported specifically with the nVidia device driver. 645 __FreeBSD_version is bumped to 900041. 646 647 Also, there is a period between 20110811 and 20110814 where the 648 special devices /dev/{stdin,stdout,stderr} did not work correctly. 649 Building world from a kernel during that window may not work. 650 65120110628: 652 The packet filter (pf) code has been updated to OpenBSD 4.5. 653 You need to update userland tools to be in sync with kernel. 654 This update breaks backward compatibility with earlier pfsync(4) 655 versions. Care must be taken when updating redundant firewall setups. 656 65720110608: 658 The following sysctls and tunables are retired on x86 platforms: 659 machdep.hlt_cpus 660 machdep.hlt_logical_cpus 661 The following sysctl is retired: 662 machdep.hyperthreading_allowed 663 The sysctls were supposed to provide a way to dynamically offline and 664 online selected CPUs on x86 platforms, but the implementation has not 665 been reliable especially with SCHED_ULE scheduler. 666 machdep.hyperthreading_allowed tunable is still available to ignore 667 hyperthreading CPUs at OS level. 668 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 669 where X is an APIC ID of a CPU. Be advised, though, that disabling 670 CPUs in non-uniform fashion will result in non-uniform topology and 671 may lead to sub-optimal system performance with SCHED_ULE, which is 672 a default scheduler. 673 67420110607: 675 cpumask_t type is retired and cpuset_t is used in order to describe 676 a mask of CPUs. 677 67820110531: 679 Changes to ifconfig(8) for dynamic address family detection mandate 680 that you are running a kernel of 20110525 or later. Make sure to 681 follow the update procedure to boot a new kernel before installing 682 world. 683 68420110513: 685 Support for sun4v architecture is officially dropped 686 68720110503: 688 Several KPI breaking changes have been committed to the mii(4) layer, 689 the PHY drivers and consequently some Ethernet drivers using mii(4). 690 This means that miibus.ko and the modules of the affected Ethernet 691 drivers need to be recompiled. 692 693 Note to kernel developers: Given that the OUI bit reversion problem 694 was fixed as part of these changes all mii(4) commits related to OUIs, 695 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 696 handling, no longer can be merged verbatim to stable/8 and previous 697 branches. 698 69920110430: 700 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 701 into their kernel configurations along with 'device pci'. 702 70320110427: 704 The default NFS client is now the new NFS client, so fstype "newnfs" 705 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 706 Although mounts via fstype "nfs" will usually work without userland 707 changes, it is recommended that the mount(8) and mount_nfs(8) 708 commands be rebuilt from sources and that a link to mount_nfs called 709 mount_oldnfs be created. The new client is compiled into the 710 kernel with "options NFSCL" and this is needed for diskless root 711 file systems. The GENERIC kernel configs have been changed to use 712 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 713 To use the regular/old client, you can "mount -t oldnfs ...". For 714 a diskless root file system, you must also include a line like: 715 716 vfs.root.mountfrom="oldnfs:" 717 718 in the boot/loader.conf on the root fs on the NFS server to make 719 a diskless root fs use the old client. 720 72120110424: 722 The GENERIC kernels for all architectures now default to the new 723 CAM-based ATA stack. It means that all legacy ATA drivers were 724 removed and replaced by respective CAM drivers. If you are using 725 ATA device names in /etc/fstab or other places, make sure to update 726 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 727 where 'Y's are the sequential numbers starting from zero for each type 728 in order of detection, unless configured otherwise with tunables, 729 see cam(4)). There will be symbolic links created in /dev/ to map 730 old adX devices to the respective adaY. They should provide basic 731 compatibility for file systems mounting in most cases, but they do 732 not support old user-level APIs and do not have respective providers 733 in GEOM. Consider using updated management tools with new device names. 734 735 It is possible to load devices ahci, ata, siis and mvs as modules, 736 but option ATA_CAM should remain in kernel configuration to make ata 737 module work as CAM driver supporting legacy ATA controllers. Device ata 738 still can be used in modular fashion (atacore + ...). Modules atadisk 739 and atapi* are not used and won't affect operation in ATA_CAM mode. 740 Note that to use CAM-based ATA kernel should include CAM devices 741 scbus, pass, da (or explicitly ada), cd and optionally others. All of 742 them are parts of the cam module. 743 744 ataraid(4) functionality is now supported by the RAID GEOM class. 745 To use it you can load geom_raid kernel module and use graid(8) tool 746 for management. Instead of /dev/arX device names, use /dev/raid/rX. 747 748 No kernel config options or code have been removed, so if a problem 749 arises, please report it and optionally revert to the old ATA stack. 750 In order to do it you can remove from the kernel config: 751 options ATA_CAM 752 device ahci 753 device mvs 754 device siis 755 , and instead add back: 756 device atadisk # ATA disk drives 757 device ataraid # ATA RAID drives 758 device atapicd # ATAPI CDROM drives 759 device atapifd # ATAPI floppy drives 760 device atapist # ATAPI tape drives 761 76220110423: 763 The default NFS server has been changed to the new server, which 764 was referred to as the experimental server. If you need to switch 765 back to the old NFS server, you must now put the "-o" option on 766 both the mountd and nfsd commands. This can be done using the 767 mountd_flags and nfs_server_flags rc.conf variables until an 768 update to the rc scripts is committed, which is coming soon. 769 77020110418: 771 The GNU Objective-C runtime library (libobjc), and other Objective-C 772 related components have been removed from the base system. If you 773 require an Objective-C library, please use one of the available ports. 774 77520110331: 776 ath(4) has been split into bus- and device- modules. if_ath contains 777 the HAL, the TX rate control and the network device code. if_ath_pci 778 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 779 contains the AHB glue. Users need to load both if_ath_pci and if_ath 780 in order to use ath on everything else. 781 782 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 783 need to load if_ath and if_ath_pci for ath(4) operation. 784 78520110314: 786 As part of the replacement of sysinstall, the process of building 787 release media has changed significantly. For details, please re-read 788 release(7), which has been updated to reflect the new build process. 789 79020110218: 791 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 792 is the last available version under GPLv2. It brings a number of new 793 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 794 4.1 and SSE 4.2), better support for powerpc64, a number of new 795 directives, and lots of other small improvements. See the ChangeLog 796 file in contrib/binutils for the full details. 797 79820110218: 799 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 800 compliant, and will now use half of hash for authentication. 801 This will break interoperability with all stacks (including all 802 actual FreeBSD versions) who implement 803 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 804 authentication). 805 The only workaround with such peers is to use another HMAC 806 algorithm for IPsec ("phase 2") authentication. 807 80820110207: 809 Remove the uio_yield prototype and symbol. This function has 810 been misnamed since it was introduced and should not be 811 globally exposed with this name. The equivalent functionality 812 is now available using kern_yield(curthread->td_user_pri). 813 The function remains undocumented. 814 81520110112: 816 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 817 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 818 for scalar sysctls is defined but disabled. Code that needs 819 UQUAD to pass the type checking that must compile on older 820 systems where the define is not present can check against 821 __FreeBSD_version >= 900030. 822 823 The system dialog(1) has been replaced with a new version previously 824 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 825 with the previous version, but the libdialog associated with it has 826 a largely incompatible API. As such, the original version of libdialog 827 will be kept temporarily as libodialog, until its base system consumers 828 are replaced or updated. Bump __FreeBSD_version to 900030. 829 83020110103: 831 If you are trying to run make universe on a -stable system, and you get 832 the following warning: 833 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 834 unknown. config(8) likely too old." 835 or something similar to it, then you must upgrade your -stable system 836 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 837 stable/8) or build the config from the latest stable/8 branch and 838 install it on your system. 839 840 Prior to this date, building a current universe on 8-stable system from 841 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 842 error in the first kernel build phase. A new config on those old 843 systems will fix that problem for older versions of -current. 844 84520101228: 846 The TCP stack has been modified to allow Khelp modules to interact with 847 it via helper hook points and store per-connection data in the TCP 848 control block. Bump __FreeBSD_version to 900029. User space tools that 849 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 850 be recompiled. 851 85220101114: 853 Generic IEEE 802.3 annex 31B full duplex flow control support has been 854 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 855 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 856 to take advantage of it instead of using custom implementations. This 857 means that these drivers now no longer unconditionally advertise 858 support for flow control but only do so if flow control is a selected 859 media option. This was implemented in the generic support that way in 860 order to allow flow control to be switched on and off via ifconfig(8) 861 with the PHY specific default to typically off in order to protect 862 from unwanted effects. Consequently, if you used flow control with 863 one of the above mentioned drivers you now need to explicitly enable 864 it, for example via: 865 ifconfig bge0 media auto mediaopt flowcontrol 866 867 Along with the above mentioned changes generic support for setting 868 1000baseT master mode also has been added and brgphy(4), ciphy(4), 869 e1000phy(4) as well as ip1000phy(4) have been converted to take 870 advantage of it. This means that these drivers now no longer take the 871 link0 parameter for selecting master mode but the master media option 872 has to be used instead, for example like in the following: 873 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 874 875 Selection of master mode now is also available with all other PHY 876 drivers supporting 1000baseT. 877 87820101111: 879 The TCP stack has received a significant update to add support for 880 modularised congestion control and generally improve the clarity of 881 congestion control decisions. Bump __FreeBSD_version to 900025. User 882 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 883 sockstat) need to be recompiled. 884 88520101002: 886 The man(1) utility has been replaced by a new version that no longer 887 uses /etc/manpath.config. Please consult man.conf(5) for how to 888 migrate local entries to the new format. 889 89020100928: 891 The copyright strings printed by login(1) and sshd(8) at the time of a 892 new connection have been removed to follow other operating systems and 893 upstream sshd. 894 89520100915: 896 A workaround for a fixed ld bug has been removed in kernel code, 897 so make sure that your system ld is built from sources after 898 revision 210245 from 2010-07-19 (r211583 if building head kernel 899 on stable/8, r211584 for stable/7; both from 2010-08-21). 900 A symptom of incorrect ld version is different addresses for 901 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 902 90320100913: 904 The $ipv6_prefer variable in rc.conf(5) has been split into 905 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 906 907 The $ip6addrctl_policy is a variable to choose a pre-defined 908 address selection policy set by ip6addrctl(8). A value 909 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 910 default is "AUTO". 911 912 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 913 flag (see an entry of 20090926) is set on an interface with no 914 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 915 security reason. If you want IPv6 link-local address on all 916 interfaces by default, set this to "YES". 917 918 The old ipv6_prefer="YES" is equivalent to 919 ipv6_activate_all_interfaces="YES" and 920 ip6addrctl_policy="ipv6_prefer". 921 92220100913: 923 DTrace has grown support for userland tracing. Due to this, DTrace is 924 now i386 and amd64 only. 925 dtruss(1) is now installed by default on those systems and a new 926 kernel module is needed for userland tracing: fasttrap. 927 No changes to your kernel config file are necessary to enable 928 userland tracing, but you might consider adding 'STRIP=' and 929 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 930 to have informative userland stack traces in DTrace (ustack). 931 93220100725: 933 The acpi_aiboost(4) driver has been removed in favor of the new 934 aibs(4) driver. You should update your kernel configuration file. 935 93620100722: 937 BSD grep has been imported to the base system and it is built by 938 default. It is completely BSD licensed, highly GNU-compatible, uses 939 less memory than its GNU counterpart and has a small codebase. 940 However, it is slower than its GNU counterpart, which is mostly 941 noticeable for larger searches, for smaller ones it is measurable 942 but not significant. The reason is complex, the most important factor 943 is that we lack a modern and efficient regex library and GNU 944 overcomes this by optimizing the searches internally. Future work 945 on improving the regex performance is planned, for the meantime, 946 users that need better performance, can build GNU grep instead by 947 setting the WITH_GNU_GREP knob. 948 94920100713: 950 Due to the import of powerpc64 support, all existing powerpc kernel 951 configuration files must be updated with a machine directive like this: 952 machine powerpc powerpc 953 954 In addition, an updated config(8) is required to build powerpc kernels 955 after this change. 956 95720100713: 958 A new version of ZFS (version 15) has been merged to -HEAD. 959 This version uses a python library for the following subcommands: 960 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 961 For full functionality of these commands the following port must 962 be installed: sysutils/py-zfs 963 96420100429: 965 'vm_page's are now hashed by physical address to an array of mutexes. 966 Currently this is only used to serialize access to hold_count. Over 967 time the page queue mutex will be peeled away. This changes the size 968 of pmap on every architecture. And requires all callers of vm_page_hold 969 and vm_page_unhold to be updated. 970 97120100402: 972 WITH_CTF can now be specified in src.conf (not recommended, there 973 are some problems with static executables), make.conf (would also 974 affect ports which do not use GNU make and do not override the 975 compile targets) or in the kernel config (via "makeoptions 976 WITH_CTF=yes"). 977 When WITH_CTF was specified there before this was silently ignored, 978 so make sure that WITH_CTF is not used in places which could lead 979 to unwanted behavior. 980 98120100311: 982 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 983 to allow 32-bit compatibility on non-x86 platforms. All kernel 984 configurations on amd64 and ia64 platforms using these options must 985 be modified accordingly. 986 98720100113: 988 The utmp user accounting database has been replaced with utmpx, 989 the user accounting interface standardized by POSIX. 990 Unfortunately the semantics of utmp and utmpx don't match, 991 making it practically impossible to support both interfaces. 992 The user accounting database is used by tools like finger(1), 993 last(1), talk(1), w(1) and ac(8). 994 995 All applications in the base system use utmpx. This means only 996 local binaries (e.g. from the ports tree) may still use these 997 utmp database files. These applications must be rebuilt to make 998 use of utmpx. 999 1000 After the system has been upgraded, it is safe to remove the old 1001 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1002 assuming their contents is of no importance anymore. Old wtmp 1003 databases can only be used by last(1) and ac(8) after they have 1004 been converted to the new format using wtmpcvt(1). 1005 100620100108: 1007 Introduce the kernel thread "deadlock resolver" (which can be enabled 1008 via the DEADLKRES option, see NOTES for more details) and the 1009 sleepq_type() function for sleepqueues. 1010 101120091202: 1012 The rc.firewall and rc.firewall6 were unified, and 1013 rc.firewall6 and rc.d/ip6fw were removed. 1014 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1015 variables are obsoleted. Instead, the following new rc 1016 variables are added to rc.d/ipfw: 1017 1018 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1019 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1020 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1021 1022 The meanings correspond to the relevant IPv4 variables. 1023 102420091125: 1025 8.0-RELEASE. 1026 102720091113: 1028 The default terminal emulation for syscons(4) has been changed 1029 from cons25 to xterm on all platforms except pc98. This means 1030 that the /etc/ttys file needs to be updated to ensure correct 1031 operation of applications on the console. 1032 1033 The terminal emulation style can be toggled per window by using 1034 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1035 options can be used to change the compile-time default back to 1036 cons25. 1037 1038 To prevent graphical artifacts, make sure the TERM environment 1039 variable is set to match the terminal emulation that is being 1040 performed by syscons(4). 1041 104220091109: 1043 The layout of the structure ieee80211req_scan_result has changed. 1044 Applications that require wireless scan results (e.g. ifconfig(8)) 1045 from net80211 need to be recompiled. 1046 1047 Applications such as wpa_supplicant(8) may require a full world 1048 build without using NO_CLEAN in order to get synchronized with the 1049 new structure. 1050 105120091025: 1052 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1053 There's one kernel module for each firmware. Adding "device iwnfw" 1054 to the kernel configuration file means including all three firmware 1055 images inside the kernel. If you want to include just the one for 1056 your wireless card, use the devices iwn4965fw, iwn5000fw or 1057 iwn5150fw. 1058 105920090926: 1060 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1061 into rc.d/netif. The changes are the following: 1062 1063 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1064 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1065 Note that both variables need the "inet6" keyword at the head. 1066 1067 Do not set $ipv6_network_interfaces manually if you do not 1068 understand what you are doing. It is not needed in most cases. 1069 1070 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1071 they are obsolete. 1072 1073 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1074 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1075 1076 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1077 all configured interfaces have "inet6 accept_rtadv" in the 1078 $ifconfig_IF_ipv6. These are for backward compatibility. 1079 1080 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1081 functionality of interfaces with no corresponding 1082 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1083 and the default address selection policy of ip6addrctl(8) 1084 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1085 Note that if you want to configure IPv6 functionality on the 1086 disabled interfaces after boot, first you need to clear the flag by 1087 using ifconfig(8) like: 1088 1089 ifconfig em0 inet6 -ifdisabled 1090 1091 If YES, the default address selection policy is set as 1092 IPv6-preferred. 1093 1094 The default value of $ipv6_prefer is NO. 1095 1096 4. If your system need to receive Router Advertisement messages, 1097 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1098 scripts automatically invoke rtsol(8) when the interface becomes 1099 UP. The Router Advertisement messages are used for SLAAC 1100 (State-Less Address AutoConfiguration). 1101 110220090922: 1103 802.11s D3.03 support was committed. This is incompatible with the 1104 previous code, which was based on D3.0. 1105 110620090912: 1107 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1108 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1109 control whether accepting Router Advertisement messages or not. 1110 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1111 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1112 The ifconfig(8) utility now supports these flags. 1113 111420090910: 1115 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1116 mount(8) and -a option for df(1) to see them. 1117 111820090825: 1119 The old tunable hw.bus.devctl_disable has been superseded by 1120 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1121 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1122 is 1000. 1123 112420090813: 1125 Remove the option STOP_NMI. The default action is now to use NMI only 1126 for KDB via the newly introduced function stop_cpus_hard() and 1127 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1128 112920090803: 1130 The stable/8 branch created in subversion. This corresponds to the 1131 RELENG_8 branch in CVS. 1132 113320090719: 1134 Bump the shared library version numbers for all libraries that do not 1135 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1136 __FreeBSD_version to 800105. 1137 113820090714: 1139 Due to changes in the implementation of virtual network stack support, 1140 all network-related kernel modules must be recompiled. As this change 1141 breaks the ABI, bump __FreeBSD_version to 800104. 1142 114320090713: 1144 The TOE interface to the TCP syncache has been modified to remove 1145 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1146 The cxgb driver is the only TOE consumer affected by this change, and 1147 needs to be recompiled along with the kernel. As this change breaks 1148 the ABI, bump __FreeBSD_version to 800103. 1149 115020090712: 1151 Padding has been added to struct tcpcb, sackhint and tcpstat in 1152 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1153 maintaining the ABI. However, this change breaks the ABI, so bump 1154 __FreeBSD_version to 800102. User space tools that rely on the size of 1155 any of these structs (e.g. sockstat) need to be recompiled. 1156 115720090630: 1158 The NFS_LEGACYRPC option has been removed along with the old kernel 1159 RPC implementation that this option selected. Kernel configurations 1160 may need to be adjusted. 1161 116220090629: 1163 The network interface device nodes at /dev/net/<interface> have been 1164 removed. All ioctl operations can be performed the normal way using 1165 routing sockets. The kqueue functionality can generally be replaced 1166 with routing sockets. 1167 116820090628: 1169 The documentation from the FreeBSD Documentation Project (Handbook, 1170 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1171 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1172 117320090624: 1174 The ABI of various structures related to the SYSV IPC API have been 1175 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1176 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1177 800100. 1178 117920090622: 1180 Layout of struct vnet has changed as routing related variables were 1181 moved to their own Vimage module. Modules need to be recompiled. Bump 1182 __FreeBSD_version to 800099. 1183 118420090619: 1185 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1186 respectively. As long as no more than 16 groups per process are used, 1187 no changes should be visible. When more than 16 groups are used, old 1188 binaries may fail if they call getgroups() or getgrouplist() with 1189 statically sized storage. Recompiling will work around this, but 1190 applications should be modified to use dynamically allocated storage 1191 for group arrays as POSIX.1-2008 does not cap an implementation's 1192 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1193 1194 NFS and portalfs mounts may also be affected as the list of groups is 1195 truncated to 16. Users of NFS who use more than 16 groups, should 1196 take care that negative group permissions are not used on the exported 1197 file systems as they will not be reliable unless a GSSAPI based 1198 authentication method is used. 1199 120020090616: 1201 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1202 option compiles in the support for adaptive spinning for lockmgrs 1203 which want to enable it. The lockinit() function now accepts the flag 1204 LK_ADAPTIVE in order to make the lock object subject to adaptive 1205 spinning when both held in write and read mode. 1206 120720090613: 1208 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1209 changed. User applications that use this ioctl need to be rebuilt. 1210 121120090611: 1212 The layout of struct thread has changed. Kernel and modules need to 1213 be rebuilt. 1214 121520090608: 1216 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1217 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1218 121920090602: 1220 window(1) has been removed from the base system. It can now be 1221 installed from ports. The port is called misc/window. 1222 122320090601: 1224 The way we are storing and accessing `routing table' entries has 1225 changed. Programs reading the FIB, like netstat, need to be 1226 re-compiled. 1227 122820090601: 1229 A new netisr implementation has been added for FreeBSD 8. Network 1230 file system modules, such as igmp, ipdivert, and others, should be 1231 rebuilt. 1232 Bump __FreeBSD_version to 800096. 1233 123420090530: 1235 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1236 more valid. 1237 123820090530: 1239 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1240 Bump __FreeBSD_version to 800094. 1241 124220090529: 1243 Add mnt_xflag field to 'struct mount'. File system modules need to be 1244 rebuilt. 1245 Bump __FreeBSD_version to 800093. 1246 124720090528: 1248 The compiling option ADAPTIVE_SX has been retired while it has been 1249 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1250 The KPI for sx_init_flags() changes as accepting flags: 1251 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1252 been introduced in order to handle the reversed logic. 1253 Bump __FreeBSD_version to 800092. 1254 125520090527: 1256 Add support for hierarchical jails. Remove global securelevel. 1257 Bump __FreeBSD_version to 800091. 1258 125920090523: 1260 The layout of struct vnet_net has changed, therefore modules 1261 need to be rebuilt. 1262 Bump __FreeBSD_version to 800090. 1263 126420090523: 1265 The newly imported zic(8) produces a new format in the output. Please 1266 run tzsetup(8) to install the newly created data to /etc/localtime. 1267 126820090520: 1269 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1270 hw.usb.* and is now consistent again with previous releases. 1271 127220090520: 1273 802.11 monitor mode support was revised and driver api's were changed. 1274 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1275 of DLT_IEEE802_11. No user-visible data structures were changed but 1276 applications that use DLT_IEEE802_11 may require changes. 1277 Bump __FreeBSD_version to 800088. 1278 127920090430: 1280 The layout of the following structs has changed: sysctl_oid, 1281 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1282 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1283 panics may be experienced. World rebuild is required for 1284 correctly checking networking state from userland. 1285 Bump __FreeBSD_version to 800085. 1286 128720090429: 1288 MLDv2 and Source-Specific Multicast (SSM) have been merged 1289 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1290 The implementation of SSM within FreeBSD's IPv6 stack closely 1291 follows the IPv4 implementation. 1292 1293 For kernel developers: 1294 1295 * The most important changes are that the ip6_output() and 1296 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1297 and this lock has been downgraded to a non-recursive mutex. 1298 1299 * As with the changes to the IPv4 stack to support SSM, filtering 1300 of inbound multicast traffic must now be performed by transport 1301 protocols within the IPv6 stack. This does not apply to TCP and 1302 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1303 1304 * The KPIs used by IPv6 multicast are similar to those used by 1305 the IPv4 stack, with the following differences: 1306 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1307 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1308 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1309 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1310 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1311 for MLDv1 have an additional 'timer' argument which is used to 1312 jitter the initial membership report for the solicited-node 1313 multicast membership on-link. 1314 * This is not strictly needed for MLDv2, which already jitters 1315 its report transmissions. However, the 'timer' argument is 1316 preserved in case MLDv1 is active on the interface. 1317 1318 * The KAME linked-list based IPv6 membership implementation has 1319 been refactored to use a vector similar to that used by the IPv4 1320 stack. 1321 Code which maintains a list of its own multicast memberships 1322 internally, e.g. carp, has been updated to reflect the new 1323 semantics. 1324 1325 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1326 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1327 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1328 implementation constraint which needs to be addressed in HEAD. 1329 1330 For application developers: 1331 1332 * The changes are broadly similar to those made for the IPv4 1333 stack. 1334 1335 * The use of IPv4 and IPv6 multicast socket options on the same 1336 socket, using mapped addresses, HAS NOT been tested or supported. 1337 1338 * There are a number of issues with the implementation of various 1339 IPv6 multicast APIs which need to be resolved in the API surface 1340 before the implementation is fully compatible with KAME userland 1341 use, and these are mostly to do with interface index treatment. 1342 1343 * The literature available discusses the use of either the delta / ASM 1344 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1345 using setsourcefilter(3)/getsourcefilter(3). For more information 1346 please refer to RFC 3768, 'Socket Interface Extensions for 1347 Multicast Source Filters'. 1348 1349 * Applications which use the published RFC 3678 APIs should be fine. 1350 1351 For systems administrators: 1352 1353 * The mtest(8) utility has been refactored to support IPv6, in 1354 addition to IPv4. Interface addresses are no longer accepted 1355 as arguments, their names must be used instead. The utility 1356 will map the interface name to its first IPv4 address as 1357 returned by getifaddrs(3). 1358 1359 * The ifmcstat(8) utility has also been updated to print the MLDv2 1360 endpoint state and source filter lists via sysctl(3). 1361 1362 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1363 loopback of IPv6 multicast datagrams by default; it defaults to 1 1364 to preserve the existing behaviour. Disabling multicast loopback is 1365 recommended for optimal system performance. 1366 1367 * The IPv6 MROUTING code has been changed to examine this sysctl 1368 instead of attempting to perform a group lookup before looping 1369 back forwarded datagrams. 1370 1371 Bump __FreeBSD_version to 800084. 1372 137320090422: 1374 Implement low-level Bluetooth HCI API. 1375 Bump __FreeBSD_version to 800083. 1376 137720090419: 1378 The layout of struct malloc_type, used by modules to register new 1379 memory allocation types, has changed. Most modules will need to 1380 be rebuilt or panics may be experienced. 1381 Bump __FreeBSD_version to 800081. 1382 138320090415: 1384 Anticipate overflowing inp_flags - add inp_flags2. 1385 This changes most offsets in inpcb, so checking v4 connection 1386 state will require a world rebuild. 1387 Bump __FreeBSD_version to 800080. 1388 138920090415: 1390 Add an llentry to struct route and struct route_in6. Modules 1391 embedding a struct route will need to be recompiled. 1392 Bump __FreeBSD_version to 800079. 1393 139420090414: 1395 The size of rt_metrics_lite and by extension rtentry has changed. 1396 Networking administration apps will need to be recompiled. 1397 The route command now supports show as an alias for get, weighting 1398 of routes, sticky and nostick flags to alter the behavior of stateful 1399 load balancing. 1400 Bump __FreeBSD_version to 800078. 1401 140220090408: 1403 Do not use Giant for kbdmux(4) locking. This is wrong and 1404 apparently causing more problems than it solves. This will 1405 re-open the issue where interrupt handlers may race with 1406 kbdmux(4) in polling mode. Typical symptoms include (but 1407 not limited to) duplicated and/or missing characters when 1408 low level console functions (such as gets) are used while 1409 interrupts are enabled (for example geli password prompt, 1410 mountroot prompt etc.). Disabling kbdmux(4) may help. 1411 141220090407: 1413 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1414 kernel modules referencing any of the above need to be recompiled. 1415 Bump __FreeBSD_version to 800075. 1416 141720090320: 1418 GEOM_PART has become the default partition slicer for storage devices, 1419 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1420 introduces some changes: 1421 1422 MSDOS/EBR: the devices created from MSDOS extended partition entries 1423 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1424 to devices with offset-based names. fstabs may need to be modified. 1425 1426 BSD: the "geometry does not match label" warning is harmless in most 1427 cases but it points to problems in file system misalignment with 1428 disk geometry. The "c" partition is now implicit, covers the whole 1429 top-level drive and cannot be (mis)used by users. 1430 1431 General: Kernel dumps are now not allowed to be written to devices 1432 whose partition types indicate they are meant to be used for file 1433 systems (or, in case of MSDOS partitions, as something else than 1434 the "386BSD" type). 1435 1436 Most of these changes date approximately from 200812. 1437 143820090319: 1439 The uscanner(4) driver has been removed from the kernel. This follows 1440 Linux removing theirs in 2.6 and making libusb the default interface 1441 (supported by sane). 1442 144320090319: 1444 The multicast forwarding code has been cleaned up. netstat(1) 1445 only relies on KVM now for printing bandwidth upcall meters. 1446 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1447 ip6_mroute_mod respectively. The config(5) options for statically 1448 compiling this code remain the same, i.e. 'options MROUTING'. 1449 145020090315: 1451 Support for the IFF_NEEDSGIANT network interface flag has been 1452 removed, which means that non-MPSAFE network device drivers are no 1453 longer supported. In particular, if_ar, if_sr, and network device 1454 drivers from the old (legacy) USB stack can no longer be built or 1455 used. 1456 145720090313: 1458 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1459 a bunch of new language catalog files have also been added. 1460 This means that some common libc messages are now localized and 1461 they depend on the LC_MESSAGES environmental variable. 1462 146320090313: 1464 The k8temp(4) driver has been renamed to amdtemp(4) since 1465 support for Family 10 and Family 11 CPU families was added. 1466 146720090309: 1468 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1469 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1470 1471 For kernel developers, the most important changes are that the 1472 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1473 and this lock has been downgraded to a non-recursive mutex. 1474 1475 Transport protocols (UDP, Raw IP) are now responsible for filtering 1476 inbound multicast traffic according to group membership and source 1477 filters. The imo_multicast_filter() KPI exists for this purpose. 1478 Transports which do not use multicast (SCTP, TCP) already reject 1479 multicast by default. Forwarding and receive performance may improve 1480 as a mutex acquisition is no longer needed in the ip_input() 1481 low-level input path. in_addmulti() and in_delmulti() are shimmed 1482 to new KPIs which exist to support SSM in-kernel. 1483 1484 For application developers, it is recommended that loopback of 1485 multicast datagrams be disabled for best performance, as this 1486 will still cause the lock to be taken for each looped-back 1487 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1488 be tuned to 0 to disable loopback by default; it defaults to 1 1489 to preserve the existing behaviour. 1490 1491 For systems administrators, to obtain best performance with 1492 multicast reception and multiple groups, it is always recommended 1493 that a card with a suitably precise hash filter is used. Hash 1494 collisions will still result in the lock being taken within the 1495 transport protocol input path to check group membership. 1496 1497 If deploying FreeBSD in an environment with IGMP snooping switches, 1498 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1499 enabled; this forces 224.0.0.0/24 group membership to be announced 1500 via IGMP. 1501 1502 The size of 'struct igmpstat' has changed; netstat needs to be 1503 recompiled to reflect this. 1504 Bump __FreeBSD_version to 800070. 1505 150620090309: 1507 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1508 updated to use it. This requires a buildworld/installworld in order to 1509 update the library and dependencies (usbconfig, etc). Its advisable to 1510 rebuild all ports which uses libusb. More specific directions are given 1511 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1512 libusb are no longer required and can be removed. 1513 151420090302: 1515 A workaround is committed to allow the creation of System V shared 1516 memory segment of size > 2 GB on the 64-bit architectures. 1517 Due to a limitation of the existing ABI, the shm_segsz member 1518 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1519 wrong for large segments. Note that limits must be explicitly 1520 raised to allow such segments to be created. 1521 152220090301: 1523 The layout of struct ifnet has changed, requiring a rebuild of all 1524 network device driver modules. 1525 152620090227: 1527 The /dev handling for the new USB stack has changed, a 1528 buildworld/installworld is required for libusb20. 1529 153020090223: 1531 The new USB2 stack has now been permanently moved in and all kernel and 1532 module names reverted to their previous values (eg, usb, ehci, ohci, 1533 ums, ...). The old usb stack can be compiled in by prefixing the name 1534 with the letter 'o', the old usb modules have been removed. 1535 Updating entry 20090216 for xorg and 20090215 for libmap may still 1536 apply. 1537 153820090217: 1539 The rc.conf(5) option if_up_delay has been renamed to 1540 defaultroute_delay to better reflect its purpose. If you have 1541 customized this setting in /etc/rc.conf you need to update it to 1542 use the new name. 1543 154420090216: 1545 xorg 7.4 wants to configure its input devices via hald which does not 1546 yet work with USB2. If the keyboard/mouse does not work in xorg then 1547 add 1548 Option "AllowEmptyInput" "off" 1549 to your ServerLayout section. This will cause X to use the configured 1550 kbd and mouse sections from your xorg.conf. 1551 155220090215: 1553 The GENERIC kernels for all architectures now default to the new USB2 1554 stack. No kernel config options or code have been removed so if a 1555 problem arises please report it and optionally revert to the old USB 1556 stack. If you are loading USB kernel modules or have a custom kernel 1557 that includes GENERIC then ensure that usb names are also changed over, 1558 eg uftdi -> usb2_serial_ftdi. 1559 1560 Older programs linked against the ports libusb 0.1 need to be 1561 redirected to the new stack's libusb20. /etc/libmap.conf can 1562 be used for this: 1563 # Map old usb library to new one for usb2 stack 1564 libusb-0.1.so.8 libusb20.so.1 1565 156620090209: 1567 All USB ethernet devices now attach as interfaces under the name ueN 1568 (eg. ue0). This is to provide a predictable name as vendors often 1569 change usb chipsets in a product without notice. 1570 157120090203: 1572 The ichsmb(4) driver has been changed to require SMBus slave 1573 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1574 All of the other SMBus controller drivers require left-justified 1575 slave addresses, so this change makes all the drivers provide the 1576 same interface. 1577 157820090201: 1579 INET6 statistics (struct ip6stat) was updated. 1580 netstat(1) needs to be recompiled. 1581 158220090119: 1583 NTFS has been removed from GENERIC kernel on amd64 to match 1584 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1585 will load ntfs.ko module automatically when NTFS support is 1586 actually needed, unless ntfs.ko is not installed or security 1587 level prohibits loading kernel modules. If either is the case, 1588 "options NTFS" has to be added into kernel config. 1589 159020090115: 1591 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1592 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1593 800061. User space tools that rely on the size of struct tcpcb in 1594 tcp_var.h (e.g. sockstat) need to be recompiled. 1595 159620081225: 1597 ng_tty(4) module updated to match the new TTY subsystem. 1598 Due to API change, user-level applications must be updated. 1599 New API support added to mpd5 CVS and expected to be present 1600 in next mpd5.3 release. 1601 160220081219: 1603 With __FreeBSD_version 800060 the makefs tool is part of 1604 the base system (it was a port). 1605 160620081216: 1607 The afdata and ifnet locks have been changed from mutexes to 1608 rwlocks, network modules will need to be re-compiled. 1609 161020081214: 1611 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1612 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1613 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1614 architecture and 40 bytes on 64-bit architecture. The userland 1615 applications "arp" and "ndp" have been updated accordingly. 1616 The output from "netstat -r" shows only routing entries and 1617 none of the L2 information. 1618 161920081130: 1620 __FreeBSD_version 800057 marks the switchover from the 1621 binary ath hal to source code. Users must add the line: 1622 1623 options AH_SUPPORT_AR5416 1624 1625 to their kernel config files when specifying: 1626 1627 device ath_hal 1628 1629 The ath_hal module no longer exists; the code is now compiled 1630 together with the driver in the ath module. It is now 1631 possible to tailor chip support (i.e. reduce the set of chips 1632 and thereby the code size); consult ath_hal(4) for details. 1633 163420081121: 1635 __FreeBSD_version 800054 adds memory barriers to 1636 <machine/atomic.h>, new interfaces to ifnet to facilitate 1637 multiple hardware transmit queues for cards that support 1638 them, and a lock-less ring-buffer implementation to 1639 enable drivers to more efficiently manage queueing of 1640 packets. 1641 164220081117: 1643 A new version of ZFS (version 13) has been merged to -HEAD. 1644 This version has zpool attribute "listsnapshots" off by 1645 default, which means "zfs list" does not show snapshots, 1646 and is the same as Solaris behavior. 1647 164820081028: 1649 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1650 165120081009: 1652 The uhci, ohci, ehci and slhci USB Host controller drivers have 1653 been put into separate modules. If you load the usb module 1654 separately through loader.conf you will need to load the 1655 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1656 controller add the following to loader.conf: 1657 1658 uhci_load="YES" 1659 ehci_load="YES" 1660 166120081009: 1662 The ABI used by the PMC toolset has changed. Please keep 1663 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1664 sync. 1665 166620081009: 1667 atapci kernel module now includes only generic PCI ATA 1668 driver. AHCI driver moved to ataahci kernel module. 1669 All vendor-specific code moved into separate kernel modules: 1670 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1671 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1672 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1673 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1674 167520080820: 1676 The TTY subsystem of the kernel has been replaced by a new 1677 implementation, which provides better scalability and an 1678 improved driver model. Most common drivers have been migrated to 1679 the new TTY subsystem, while others have not. The following 1680 drivers have not yet been ported to the new TTY layer: 1681 1682 PCI/ISA: 1683 cy, digi, rc, rp, sio 1684 1685 USB: 1686 ubser, ucycom 1687 1688 Line disciplines: 1689 ng_h4, ng_tty, ppp, sl, snp 1690 1691 Adding these drivers to your kernel configuration file shall 1692 cause compilation to fail. 1693 169420080818: 1695 ntpd has been upgraded to 4.2.4p5. 1696 169720080801: 1698 OpenSSH has been upgraded to 5.1p1. 1699 1700 For many years, FreeBSD's version of OpenSSH preferred DSA 1701 over RSA for host and user authentication keys. With this 1702 upgrade, we've switched to the vendor's default of RSA over 1703 DSA. This may cause upgraded clients to warn about unknown 1704 host keys even for previously known hosts. Users should 1705 follow the usual procedure for verifying host keys before 1706 accepting the RSA key. 1707 1708 This can be circumvented by setting the "HostKeyAlgorithms" 1709 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1710 command line. 1711 1712 Please note that the sequence of keys offered for 1713 authentication has been changed as well. You may want to 1714 specify IdentityFile in a different order to revert this 1715 behavior. 1716 171720080713: 1718 The sio(4) driver has been removed from the i386 and amd64 1719 kernel configuration files. This means uart(4) is now the 1720 default serial port driver on those platforms as well. 1721 1722 To prevent collisions with the sio(4) driver, the uart(4) driver 1723 uses different names for its device nodes. This means the 1724 onboard serial port will now most likely be called "ttyu0" 1725 instead of "ttyd0". You may need to reconfigure applications to 1726 use the new device names. 1727 1728 When using the serial port as a boot console, be sure to update 1729 /boot/device.hints and /etc/ttys before booting the new kernel. 1730 If you forget to do so, you can still manually specify the hints 1731 at the loader prompt: 1732 1733 set hint.uart.0.at="isa" 1734 set hint.uart.0.port="0x3F8" 1735 set hint.uart.0.flags="0x10" 1736 set hint.uart.0.irq="4" 1737 boot -s 1738 173920080609: 1740 The gpt(8) utility has been removed. Use gpart(8) to partition 1741 disks instead. 1742 174320080603: 1744 The version that Linuxulator emulates was changed from 2.4.2 1745 to 2.6.16. If you experience any problems with Linux binaries 1746 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1747 if it fixes the problem contact emulation mailing list. 1748 174920080525: 1750 ISDN4BSD (I4B) was removed from the src tree. You may need to 1751 update a your kernel configuration and remove relevant entries. 1752 175320080509: 1754 I have checked in code to support multiple routing tables. 1755 See the man pages setfib(1) and setfib(2). 1756 This is a hopefully backwards compatible version, 1757 but to make use of it you need to compile your kernel 1758 with options ROUTETABLES=2 (or more up to 16). 1759 176020080420: 1761 The 802.11 wireless support was redone to enable multi-bss 1762 operation on devices that are capable. The underlying device 1763 is no longer used directly but instead wlanX devices are 1764 cloned with ifconfig. This requires changes to rc.conf files. 1765 For example, change: 1766 ifconfig_ath0="WPA DHCP" 1767 to 1768 wlans_ath0=wlan0 1769 ifconfig_wlan0="WPA DHCP" 1770 see rc.conf(5) for more details. In addition, mergemaster of 1771 /etc/rc.d is highly recommended. Simultaneous update of userland 1772 and kernel wouldn't hurt either. 1773 1774 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1775 modules were merged into the base wlan module. All references 1776 to these modules (e.g. in kernel config files) must be removed. 1777 177820080408: 1779 psm(4) has gained write(2) support in native operation level. 1780 Arbitrary commands can be written to /dev/psm%d and status can 1781 be read back from it. Therefore, an application is responsible 1782 for status validation and error recovery. It is a no-op in 1783 other operation levels. 1784 178520080312: 1786 Support for KSE threading has been removed from the kernel. To 1787 run legacy applications linked against KSE libmap.conf may 1788 be used. The following libmap.conf may be used to ensure 1789 compatibility with any prior release: 1790 1791 libpthread.so.1 libthr.so.1 1792 libpthread.so.2 libthr.so.2 1793 libkse.so.3 libthr.so.3 1794 179520080301: 1796 The layout of struct vmspace has changed. This affects libkvm 1797 and any executables that link against libkvm and use the 1798 kvm_getprocs() function. In particular, but not exclusively, 1799 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1800 The effects are minimal, but it's advisable to upgrade world 1801 nonetheless. 1802 180320080229: 1804 The latest em driver no longer has support in it for the 1805 82575 adapter, this is now moved to the igb driver. The 1806 split was done to make new features that are incompatible 1807 with older hardware easier to do. 1808 180920080220: 1810 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1811 likewise the kernel option is now GEOM_LINUX_LVM. 1812 181320080211: 1814 The default NFS mount mode has changed from UDP to TCP for 1815 increased reliability. If you rely on (insecurely) NFS 1816 mounting across a firewall you may need to update your 1817 firewall rules. 1818 181920080208: 1820 Belatedly note the addition of m_collapse for compacting 1821 mbuf chains. 1822 182320080126: 1824 The fts(3) structures have been changed to use adequate 1825 integer types for their members and so to be able to cope 1826 with huge file trees. The old fts(3) ABI is preserved 1827 through symbol versioning in libc, so third-party binaries 1828 using fts(3) should still work, although they will not take 1829 advantage of the extended types. At the same time, some 1830 third-party software might fail to build after this change 1831 due to unportable assumptions made in its source code about 1832 fts(3) structure members. Such software should be fixed 1833 by its vendor or, in the worst case, in the ports tree. 1834 FreeBSD_version 800015 marks this change for the unlikely 1835 case that a portable fix is impossible. 1836 183720080123: 1838 To upgrade to -current after this date, you must be running 1839 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1840 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1841 184220071128: 1843 The ADAPTIVE_GIANT kernel option has been retired because its 1844 functionality is the default now. 1845 184620071118: 1847 The AT keyboard emulation of sunkbd(4) has been turned on 1848 by default. In order to make the special symbols of the Sun 1849 keyboards driven by sunkbd(4) work under X these now have 1850 to be configured the same way as Sun USB keyboards driven 1851 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1852 1853 Option "XkbLayout" "us" 1854 Option "XkbRules" "xorg" 1855 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1856 185720071024: 1858 It has been decided that it is desirable to provide ABI 1859 backwards compatibility to the FreeBSD 4/5/6 versions of the 1860 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1861 broken with the introduction of PCI domain support (see the 1862 20070930 entry). Unfortunately, this required the ABI of 1863 PCIOCGETCONF to be broken again in order to be able to 1864 provide backwards compatibility to the old version of that 1865 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1866 again. As for prominent ports this affects neither pciutils 1867 nor xorg-server this time, the hal port needs to be rebuilt 1868 however. 1869 187020071020: 1871 The misnamed kthread_create() and friends have been renamed 1872 to kproc_create() etc. Many of the callers already 1873 used kproc_start().. 1874 I will return kthread_create() and friends in a while 1875 with implementations that actually create threads, not procs. 1876 Renaming corresponds with version 800002. 1877 187820071010: 1879 RELENG_7 branched. 1880 1881COMMON ITEMS: 1882 1883 General Notes 1884 ------------- 1885 Avoid using make -j when upgrading. While generally safe, there are 1886 sometimes problems using -j to upgrade. If your upgrade fails with 1887 -j, please try again without -j. From time to time in the past there 1888 have been problems using -j with buildworld and/or installworld. This 1889 is especially true when upgrading between "distant" versions (eg one 1890 that cross a major release boundary or several minor releases, or when 1891 several months have passed on the -current branch). 1892 1893 Sometimes, obscure build problems are the result of environment 1894 poisoning. This can happen because the make utility reads its 1895 environment when searching for values for global variables. To run 1896 your build attempts in an "environmental clean room", prefix all make 1897 commands with 'env -i '. See the env(1) manual page for more details. 1898 1899 When upgrading from one major version to another it is generally best 1900 to upgrade to the latest code in the currently installed branch first, 1901 then do an upgrade to the new branch. This is the best-tested upgrade 1902 path, and has the highest probability of being successful. Please try 1903 this approach before reporting problems with a major version upgrade. 1904 1905 When upgrading a live system, having a root shell around before 1906 installing anything can help undo problems. Not having a root shell 1907 around can lead to problems if pam has changed too much from your 1908 starting point to allow continued authentication after the upgrade. 1909 1910 ZFS notes 1911 --------- 1912 When upgrading the boot ZFS pool to a new version, always follow 1913 these two steps: 1914 1915 1.) recompile and reinstall the ZFS boot loader and boot block 1916 (this is part of "make buildworld" and "make installworld") 1917 1918 2.) update the ZFS boot block on your boot drive 1919 1920 The following example updates the ZFS boot block on the first 1921 partition (freebsd-boot) of a GPT partitioned drive ad0: 1922 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1923 1924 Non-boot pools do not need these updates. 1925 1926 To build a kernel 1927 ----------------- 1928 If you are updating from a prior version of FreeBSD (even one just 1929 a few days old), you should follow this procedure. It is the most 1930 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1931 1932 make kernel-toolchain 1933 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1934 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1935 1936 To test a kernel once 1937 --------------------- 1938 If you just want to boot a kernel once (because you are not sure 1939 if it works, or if you want to boot a known bad kernel to provide 1940 debugging information) run 1941 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1942 nextboot -k testkernel 1943 1944 To just build a kernel when you know that it won't mess you up 1945 -------------------------------------------------------------- 1946 This assumes you are already running a CURRENT system. Replace 1947 ${arch} with the architecture of your machine (e.g. "i386", 1948 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1949 1950 cd src/sys/${arch}/conf 1951 config KERNEL_NAME_HERE 1952 cd ../compile/KERNEL_NAME_HERE 1953 make depend 1954 make 1955 make install 1956 1957 If this fails, go to the "To build a kernel" section. 1958 1959 To rebuild everything and install it on the current system. 1960 ----------------------------------------------------------- 1961 # Note: sometimes if you are running current you gotta do more than 1962 # is listed here if you are upgrading from a really old current. 1963 1964 <make sure you have good level 0 dumps> 1965 make buildworld 1966 make kernel KERNCONF=YOUR_KERNEL_HERE 1967 [1] 1968 <reboot in single user> [3] 1969 mergemaster -p [5] 1970 make installworld 1971 mergemaster -i [4] 1972 make delete-old [6] 1973 <reboot> 1974 1975 To cross-install current onto a separate partition 1976 -------------------------------------------------- 1977 # In this approach we use a separate partition to hold 1978 # current's root, 'usr', and 'var' directories. A partition 1979 # holding "/", "/usr" and "/var" should be about 2GB in 1980 # size. 1981 1982 <make sure you have good level 0 dumps> 1983 <boot into -stable> 1984 make buildworld 1985 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1986 <maybe newfs current's root partition> 1987 <mount current's root partition on directory ${CURRENT_ROOT}> 1988 make installworld DESTDIR=${CURRENT_ROOT} 1989 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1990 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1991 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1992 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1993 <reboot into current> 1994 <do a "native" rebuild/install as described in the previous section> 1995 <maybe install compatibility libraries from ports/misc/compat*> 1996 <reboot> 1997 1998 1999 To upgrade in-place from stable to current 2000 ---------------------------------------------- 2001 <make sure you have good level 0 dumps> 2002 make buildworld [9] 2003 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2004 [1] 2005 <reboot in single user> [3] 2006 mergemaster -p [5] 2007 make installworld 2008 mergemaster -i [4] 2009 make delete-old [6] 2010 <reboot> 2011 2012 Make sure that you've read the UPDATING file to understand the 2013 tweaks to various things you need. At this point in the life 2014 cycle of current, things change often and you are on your own 2015 to cope. The defaults can also change, so please read ALL of 2016 the UPDATING entries. 2017 2018 Also, if you are tracking -current, you must be subscribed to 2019 freebsd-current@freebsd.org. Make sure that before you update 2020 your sources that you have read and understood all the recent 2021 messages there. If in doubt, please track -stable which has 2022 much fewer pitfalls. 2023 2024 [1] If you have third party modules, such as vmware, you 2025 should disable them at this point so they don't crash your 2026 system on reboot. 2027 2028 [3] From the bootblocks, boot -s, and then do 2029 fsck -p 2030 mount -u / 2031 mount -a 2032 cd src 2033 adjkerntz -i # if CMOS is wall time 2034 Also, when doing a major release upgrade, it is required that 2035 you boot into single user mode to do the installworld. 2036 2037 [4] Note: This step is non-optional. Failure to do this step 2038 can result in a significant reduction in the functionality of the 2039 system. Attempting to do it by hand is not recommended and those 2040 that pursue this avenue should read this file carefully, as well 2041 as the archives of freebsd-current and freebsd-hackers mailing lists 2042 for potential gotchas. The -U option is also useful to consider. 2043 See mergemaster(8) for more information. 2044 2045 [5] Usually this step is a noop. However, from time to time 2046 you may need to do this if you get unknown user in the following 2047 step. It never hurts to do it all the time. You may need to 2048 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2049 install) after the buildworld before this step if you last updated 2050 from current before 20130425 or from -stable before 20130430. 2051 2052 [6] This only deletes old files and directories. Old libraries 2053 can be deleted by "make delete-old-libs", but you have to make 2054 sure that no program is using those libraries anymore. 2055 2056 [8] In order to have a kernel that can run the 4.x binaries needed to 2057 do an installworld, you must include the COMPAT_FREEBSD4 option in 2058 your kernel. Failure to do so may leave you with a system that is 2059 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2060 required to run the 5.x binaries on more recent kernels. And so on 2061 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2062 2063 Make sure that you merge any new devices from GENERIC since the 2064 last time you updated your kernel config file. 2065 2066 [9] When checking out sources, you must include the -P flag to have 2067 cvs prune empty directories. 2068 2069 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2070 "?=" instead of the "=" assignment operator, so that buildworld can 2071 override the CPUTYPE if it needs to. 2072 2073 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2074 not on the command line, or in /etc/make.conf. buildworld will 2075 warn if it is improperly defined. 2076FORMAT: 2077 2078This file contains a list, in reverse chronological order, of major 2079breakages in tracking -current. It is not guaranteed to be a complete 2080list of such breakages, and only contains entries since October 10, 2007. 2081If you need to see UPDATING entries from before that date, you will need 2082to fetch an UPDATING file from an older FreeBSD release. 2083 2084Copyright information: 2085 2086Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2087 2088Redistribution, publication, translation and use, with or without 2089modification, in full or in part, in any form or format of this 2090document are permitted without further permission from the author. 2091 2092THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2093IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2094WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2095DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2096INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2097(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2098SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2099HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2100STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2101IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2102POSSIBILITY OF SUCH DAMAGE. 2103 2104Contact Warner Losh if you have any questions about your use of 2105this document. 2106 2107$FreeBSD: stable/10/UPDATING 268813 2014-07-17 22:31:46Z imp $ 2108