UPDATING revision 301301
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 1920160604 p36 FreeBSD-SA-16:24.ntp 20 21 Fix multiple vulnerabilities of ntp. 22 2320160531 p35 FreeBSD-SA-16:20.linux 24 FreeBSD-SA-16:21.43bsd 25 FreeBSD-SA-16:22.libarchive 26 27 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 28 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 29 Fix directory traversal in cpio(1). [SA-16:22] 30 3120160517 p34 FreeBSD-SA-16:18.atkbd 32 FreeBSD-SA-16:19.sendmsg 33 34 Fix buffer overflow in keyboard driver. [SA-16:18] 35 36 Fix incorrect argument handling in sendmsg(2). [SA-16:19] 37 3820160504 p33 FreeBSD-SA-16:17.openssl 39 FreeBSD-EN-16:08.zfs 40 41 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 42 43 Fix memory leak in ZFS. [EN-16:08] 44 4520160429 p32 FreeBSD-SA-16:16.ntp 46 47 Fix multiple vulnerabilities of ntp. 48 4920160316 p31 FreeBSD-SA-16:14.openssh-xauth 50 FreeBSD-SA-16:15.sysarch 51 FreeBSD-EN-16:04.hyperv 52 53 Fix OpenSSH xauth(1) command injection. [SA-16:14] 54 Fix incorrect argument validation in sysarch(2). [SA-16:15] 55 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04] 56 5720160303 p30 FreeBSD-SA-16:12.openssl 58 59 Fix multiple vulnerabilities of OpenSSL. 60 6120160130 p29 FreeBSD-SA-16:11.openssl 62 63 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 64 6520160127 p28 FreeBSD-SA-16:09.ntp 66 FreeBSD-SA-16:10.linux 67 68 Fix multiple vulnerabilities of ntp. [SA-16:09] 69 70 Fix Linux compatibility layer issetugid(2) system call 71 vulnerability. [SA-16:10] 72 7320160114 p27 FreeBSD-SA-16:07.openssh 74 75 Fix OpenSSH client information leak. [SA-16:07] 76 7720160114 p26 FreeBSD-EN-16:02.pf 78 FreeBSD-EN-16:03.yplib 79 FreeBSD-SA-16:01.sctp 80 FreeBSD-SA-16:02.ntp 81 FreeBSD-SA-16:03.linux 82 FreeBSD-SA-16:04.linux 83 FreeBSD-SA-16:05.tcp 84 FreeBSD-SA-16:06.bsnmpd 85 86 Fix pf(4) generating bad TCP checksums. [EN-16:02] 87 Fix infinite loop in YP/NIS client library. [EN-16:03] 88 Fix remote denial of service in SCTP. [SA-16:01] 89 Update NTP to 4.2.8p5. [SA-16:02] 90 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 91 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 92 Fix crash in TCP MD5 signatures. [SA-16:05] 93 Fix insecure default permissions for snmpd.config. [SA-16:06] 94 9520151205 p25 FreeBSD-SA-15:26.openssl 96 97 Fix multiple OpenSSL vulnerabilities. [SA-15:26] 98 9920151104 p24 FreeBSD-SA-15:25.ntp [revised] 100 FreeBSD-EN-15:19.kqueue 101 FreeBSD-EN-15:20.vm 102 103 Fix regression in ntpd(8) lacking support for RAWDCF reference 104 clock in 10.1-RELEASE-p23. [SA-15:25.ntp] 105 106 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 107 108 Fix applications exiting due to segmentation violation on a correct 109 memory address. [EN-15:20] 110 11120151026: p23 FreeBSD-SA-15:25.ntp 112 113 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 114 115 The configuration file syntax has been changed, thus mergemaster 116 run is recommended. Now the "kod" parameter requires "limited" 117 parameter. If the ntp.conf is not updated, the ntpd will run 118 successfully, but with KoD disabled. 119 12020151002: p22 FreeBSD-SA-15:24.rpcbind [revised] 121 Revised patch to address a regression that prevents NIS from working. 122 12320150929: p21 FreeBSD-SA-15:24.rpcbind 124 125 Fix rpcbind(8) remote denial of service. [SA-15:24] 126 12720150916: p20 FreeBSD-EN-15:18.pkg 128 129 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 130 13120150825: p19 FreeBSD-SA-15:21.amd64 132 FreeBSD-SA-15:22.openssh 133 FreeBSD-EN-15:14.ixgbe 134 FreeBSD-EN-15:15.pkg 135 136 Fix local privilege escalation in IRET handler. [SA-15:21] 137 138 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 139 140 Disabled ixgbe(4) flow-director support. [EN-15:14] 141 142 Fix insufficient check of unsupported pkg(7) signature methods. 143 [EN-15:15] 144 14520150818: p18 FreeBSD-SA-15:20.expat 146 147 Fix multiple integer overflows in expat (libbsdxml) XML parser. 148 [SA-15:20] 149 15020150805: p17 FreeBSD-SA-15:18.bsdpatch 151 FreeBSD-SA-15:19.routed 152 153 Fix patch(1) shell injection vulnerability via ed(1). 154 [SA-15:18] 155 156 Fix routed remote denial of service vulnerability. [SA-15:19] 157 15820150728: p16 FreeBSD-SA-15:14.bsdpatch 159 FreeBSD-SA-15:15.tcp 160 FreeBSD-SA-15:16.openssh 161 162 Fix patch(1) shell injection vulnerability. [SA-15:14] 163 164 Fix resource exhaustion in TCP reassembly. [SA-15:15] 165 166 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 167 16820150721: p15 FreeBSD-SA-15:13.tcp 169 170 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 171 [SA-15:13] 172 17320150630: p14 FreeBSD-EN-15:08.sendmail [revised] 174 FreeBSD-EN-15:09.xlocale 175 FreeBSD-EN-15:10.iconv 176 177 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 178 179 Fix inconsistency between locale and rune locale states. 180 [EN-15:09] 181 182 Improved iconv(3) UTF-7 support. [EN-15:10] 183 18420150618: p13 FreeBSD-EN-15:08.sendmail 185 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 186 18720150612: p12 FreeBSD-SA-15:10.openssl 188 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 189 19020150609: p11 FreeBSD-EN-15:06.file 191 FreeBSD-EN-15:07.zfs 192 193 Updated base system file(1) to 5.22 to address multiple denial 194 of service issues. [EN-15:06] 195 196 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 197 [EN-15:07] 198 19920150513: p10 FreeBSD-EN-15:04.freebsd-update 200 FreeBSD-EN-15:05.ufs 201 202 Fix bug with freebsd-update(8) that does not ensure the previous 203 upgrade was completed. [EN-15:04] 204 205 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 206 20720150407: p9 FreeBSD-SA-15:04.igmp [revised] 208 FreeBSD-SA-15:07.ntp 209 FreeBSD-SA-15:08.bsdinstall 210 FreeBSD-SA-15:09.ipv6 211 212 Improved patch for SA-15:04.igmp. 213 214 Fix multiple vulnerabilities of ntp. [SA-15:07] 215 216 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 217 218 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 219 22020150320: p8 221 Fix patch for SA-15:06.openssl. 222 22320150319: p7 FreeBSD-SA-15:06.openssl 224 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 225 22620150225: p6 FreeBSD-SA-15:04.igmp 227 FreeBSD-EN-15:01.vt 228 FreeBSD-EN-15:02.openssl 229 FreeBSD-EN-15:03.freebsd-update 230 231 Fix integer overflow in IGMP protocol. [SA-15:04] 232 233 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 234 235 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 236 237 Fix freebsd-update libraries update ordering issue. [EN-15:03] 238 23920150127: p5 FreeBSD-SA-15:02.kmem 240 FreeBSD-SA-15:03.sctp 241 242 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 243 vulnerability. [SA-15:02] 244 245 Fix SCTP stream reset vulnerability. [SA-15:03] 246 24720150114: p4 FreeBSD-SA-15:01.openssl 248 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 249 25020141223: p3 FreeBSD-SA-14:31.ntp 251 FreeBSD-EN-14:13.freebsd-update 252 253 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 254 Fix directory deletion issue in freebsd-update. [EN-14:13] 255 25620141217: p2 FreeBSD-SA-14:30.unbound 257 Fix unbound remote denial of service vulnerability. 258 25920141210: p1 FreeBSD-SA-14:27.stdio 260 FreeBSD-SA-14:28.file 261 262 Fix buffer overflow in stdio. [SA-14:27] 263 264 Fix multiple vulnerabilities in file(1) and libmagic(3). 265 [SA-14:28] 266 26720140904: 268 The ofwfb driver, used to provide a graphics console on PowerPC when 269 using vt(4), no longer allows mmap() of all of physical memory. This 270 will prevent Xorg on PowerPC with some ATI graphics cards from 271 initializing properly unless x11-servers/xorg-server is updated to 272 1.12.4_8 or newer. 273 27420140831: 275 The libatf-c and libatf-c++ major versions were downgraded to 0 and 276 1 respectively to match the upstream numbers. They were out of 277 sync because, when they were originally added to FreeBSD, the 278 upstream versions were not respected. These libraries are private 279 and not yet built by default, so renumbering them should be a 280 non-issue. However, unclean source trees will yield broken test 281 programs once the operator executes "make delete-old-libs" after a 282 "make installworld". 283 284 Additionally, the atf-sh binary was made private by moving it into 285 /usr/libexec/. Already-built shell test programs will keep the 286 path to the old binary so they will break after "make delete-old" 287 is run. 288 289 If you are using WITH_TESTS=yes (not the default), wipe the object 290 tree and rebuild from scratch to prevent spurious test failures. 291 This is only needed once: the misnumbered libraries and misplaced 292 binaries have been added to OptionalObsoleteFiles.inc so they will 293 be removed during a clean upgrade. 294 29520140814: 296 The ixgbe tunables now match their sysctl counterparts, for example: 297 hw.ixgbe.enable_aim => hw.ix.enable_aim 298 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 299 30020140801: 301 The NFSv4.1 server committed by r269398 changes the internal 302 function call interfaces used between the NFS and krpc modules. 303 As such, __FreeBSD_version was bumped. 304 30520140729: 306 The default unbound configuration has been modified to address 307 issues with reverse lookups on networks that use private 308 address ranges. If you use the local_unbound service, run 309 "service local_unbound setup" as root to regenerate your 310 configuration, then "service local_unbound reload" to load the 311 new configuration. 312 31320140717: 314 It is no longer necessary to include the dwarf version in your DEBUG 315 options in your kernel config file. The bug that required it to be 316 placed in the config file has bene fixed. DEBUG should now just 317 contain -g. The build system will automatically update things 318 to do the right thing. 319 32020140715: 321 Several ABI breaking changes were merged to CTL and new iSCSI code. 322 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 323 iscsictl need to be rebuilt to work with a new kernel. 324 32520140708: 326 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 327 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 328 which differs from the behaviour controlled by this knob.) 329 33020140608: 331 On i386 and amd64 systems, the onifconsole flag is now set by default 332 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 333 as a login TTY if it is set in the bootloader as an active kernel 334 console. No changes in behavior should result otherwise. To revert to 335 the previous behavior, set ttyu0 to "off" in /etc/ttys. 336 33720140512: 338 Clang and llvm have been upgraded to 3.4.1 release. 339 34020140321: 341 Clang and llvm have been upgraded to 3.4 release. 342 34320140306: 344 If a Makefile in a tests/ directory was auto-generating a Kyuafile 345 instead of providing an explicit one, this would prevent such 346 Makefile from providing its own Kyuafile in the future during 347 NO_CLEAN builds. This has been fixed in the Makefiles but manual 348 intervention is needed to clean an objdir if you use NO_CLEAN: 349 # find /usr/obj -name Kyuafile | xargs rm -f 350 35120140303: 352 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 353 capability mode support. Please note that enabling the feature in 354 kernel is still highly recommended. 355 35620140227: 357 OpenSSH is now built with sandbox support, and will use sandbox as 358 the default privilege separation method. This requires Capsicum 359 capability mode support in kernel. 360 36120140216: 362 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 363 been deprecated and will not be part of FreeBSD 11.0 and later 364 releases. If you use this driver, please consider switching to 365 the nfe(4) driver instead. 366 36720140120: 368 10.0-RELEASE. 369 37020131216: 371 The behavior of gss_pseudo_random() for the krb5 mechanism 372 has changed, for applications requesting a longer random string 373 than produced by the underlying enctype's pseudo-random() function. 374 In particular, the random string produced from a session key of 375 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 376 be different at the 17th octet and later, after this change. 377 The counter used in the PRF+ construction is now encoded as a 378 big-endian integer in accordance with RFC 4402. 379 __FreeBSD_version is bumped to 1000701. 380 38120131108: 382 The WITHOUT_ATF build knob has been removed and its functionality 383 has been subsumed into the more generic WITHOUT_TESTS. If you were 384 using the former to disable the build of the ATF libraries, you 385 should change your settings to use the latter. 386 38720131031: 388 The default version of mtree is nmtree which is obtained from 389 NetBSD. The output is generally the same, but may vary 390 slightly. If you found you need identical output adding 391 "-F freebsd9" to the command line should do the trick. For the 392 time being, the old mtree is available as fmtree. 393 39420131014: 395 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 396 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 397 1.1.4_8 and verify bsdyml not linked in, before running "make 398 delete-old-libs": 399 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 400 or 401 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 402 40320131010: 404 The rc.d/jail script has been updated to support jail(8) 405 configuration file. The "jail_<jname>_*" rc.conf(5) variables 406 for per-jail configuration are automatically converted to 407 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 408 This is transparently backward compatible. See below about some 409 incompatibilities and rc.conf(5) manual page for more details. 410 411 These variables are now deprecated in favor of jail(8) configuration 412 file. One can use "rc.d/jail config <jname>" command to generate 413 a jail(8) configuration file in /var/run/jail.<jname>.conf without 414 running the jail(8) utility. The default pathname of the 415 configuration file is /etc/jail.conf and can be specified by 416 using $jail_conf or $jail_<jname>_conf variables. 417 418 Please note that jail_devfs_ruleset accepts an integer at 419 this moment. Please consider to rewrite the ruleset name 420 with an integer. 421 42220130930: 423 BIND has been removed from the base system. If all you need 424 is a local resolver, simply enable and start the local_unbound 425 service instead. Otherwise, several versions of BIND are 426 available in the ports tree. The dns/bind99 port is one example. 427 428 With this change, nslookup(1) and dig(1) are no longer in the base 429 system. Users should instead use host(1) and drill(1) which are 430 in the base system. Alternatively, nslookup and dig can 431 be obtained by installing the dns/bind-tools port. 432 43320130916: 434 With the addition of unbound(8), a new unbound user is now 435 required during installworld. "mergemaster -p" can be used to 436 add the user prior to installworld, as documented in the handbook. 437 43820130911: 439 OpenSSH is now built with DNSSEC support, and will by default 440 silently trust signed SSHFP records. This can be controlled with 441 the VerifyHostKeyDNS client configuration setting. DNSSEC support 442 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 443 44420130906: 445 The GNU Compiler Collection and C++ standard library (libstdc++) 446 are no longer built by default on platforms where clang is the system 447 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 448 options in src.conf. 449 45020130905: 451 The PROCDESC kernel option is now part of the GENERIC kernel 452 configuration and is required for the rwhod(8) to work. 453 If you are using custom kernel configuration, you should include 454 'options PROCDESC'. 455 45620130905: 457 The API and ABI related to the Capsicum framework was modified 458 in backward incompatible way. The userland libraries and programs 459 have to be recompiled to work with the new kernel. This includes the 460 following libraries and programs, but the whole buildworld is 461 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 462 kdump, procstat, rwho, rwhod, uniq. 463 46420130903: 465 AES-NI intrinsic support has been added to gcc. The AES-NI module 466 has been updated to use this support. A new gcc is required to build 467 the aesni module on both i386 and amd64. 468 46920130821: 470 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 471 Thus "device padlock_rng" and "device rdrand_rng" should be 472 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 473 47420130813: 475 WITH_ICONV has been split into two feature sets. WITH_ICONV now 476 enables just the iconv* functionality and is now on by default. 477 WITH_LIBICONV_COMPAT enables the libiconv api and link time 478 compatability. Set WITHOUT_ICONV to build the old way. 479 If you have been using WITH_ICONV before, you will very likely 480 need to turn on WITH_LIBICONV_COMPAT. 481 48220130806: 483 INVARIANTS option now enables DEBUG for code with OpenSolaris and 484 Illumos origin, including ZFS. If you have INVARIANTS in your 485 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 486 explicitly. 487 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 488 locks if WITNESS option was set. Because that generated a lot of 489 witness(9) reports and all of them were believed to be false 490 positives, this is no longer done. New option OPENSOLARIS_WITNESS 491 can be used to achieve the previous behavior. 492 49320130806: 494 Timer values in IPv6 data structures now use time_uptime instead 495 of time_second. Although this is not a user-visible functional 496 change, userland utilities which directly use them---ndp(8), 497 rtadvd(8), and rtsold(8) in the base system---need to be updated 498 to r253970 or later. 499 50020130802: 501 find -delete can now delete the pathnames given as arguments, 502 instead of only files found below them or if the pathname did 503 not contain any slashes. Formerly, the following error message 504 would result: 505 506 find: -delete: <path>: relative path potentially not safe 507 508 Deleting the pathnames given as arguments can be prevented 509 without error messages using -mindepth 1 or by changing 510 directory and passing "." as argument to find. This works in the 511 old as well as the new version of find. 512 51320130726: 514 Behavior of devfs rules path matching has been changed. 515 Pattern is now always matched against fully qualified devfs 516 path and slash characters must be explicitly matched by 517 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 518 subdirectories must be reviewed. 519 52020130716: 521 The default ARM ABI has changed to the ARM EABI. The old ABI is 522 incompatible with the ARM EABI and all programs and modules will 523 need to be rebuilt to work with a new kernel. 524 525 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 526 527 NOTE: Support for the old ABI will be removed in the future and 528 users are advised to upgrade. 529 53020130709: 531 pkg_install has been disconnected from the build if you really need it 532 you should add WITH_PKGTOOLS in your src.conf(5). 533 53420130709: 535 Most of network statistics structures were changed to be able 536 keep 64-bits counters. Thus all tools, that work with networking 537 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 538 53920130629: 540 Fix targets that run multiple make's to use && rather than ; 541 so that subsequent steps depend on success of previous. 542 543 NOTE: if building 'universe' with -j* on stable/8 or stable/9 544 it would be better to start the build using bmake, to avoid 545 overloading the machine. 546 54720130618: 548 Fix a bug that allowed a tracing process (e.g. gdb) to write 549 to a memory-mapped file in the traced process's address space 550 even if neither the traced process nor the tracing process had 551 write access to that file. 552 55320130615: 554 CVS has been removed from the base system. An exact copy 555 of the code is available from the devel/cvs port. 556 55720130613: 558 Some people report the following error after the switch to bmake: 559 560 make: illegal option -- J 561 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 562 ... 563 *** [buildworld] Error code 2 564 565 this likely due to an old instance of make in 566 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 567 which src/Makefile will use that blindly, if it exists, so if 568 you see the above error: 569 570 rm -rf `make -V MAKEPATH` 571 572 should resolve it. 573 57420130516: 575 Use bmake by default. 576 Whereas before one could choose to build with bmake via 577 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 578 make. The goal is to remove these knobs for 10-RELEASE. 579 580 It is worth noting that bmake (like gmake) treats the command 581 line as the unit of failure, rather than statements within the 582 command line. Thus '(cd some/where && dosomething)' is safer 583 than 'cd some/where; dosomething'. The '()' allows consistent 584 behavior in parallel build. 585 58620130429: 587 Fix a bug that allows NFS clients to issue READDIR on files. 588 58920130426: 590 The WITHOUT_IDEA option has been removed because 591 the IDEA patent expired. 592 59320130426: 594 The sysctl which controls TRIM support under ZFS has been renamed 595 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 596 enabled by default. 597 59820130425: 599 The mergemaster command now uses the default MAKEOBJDIRPREFIX 600 rather than creating it's own in the temporary directory in 601 order allow access to bootstrapped versions of tools such as 602 install and mtree. When upgrading from version of FreeBSD where 603 the install command does not support -l, you will need to 604 install a new mergemaster command if mergemaster -p is required. 605 This can be accomplished with the command (cd src/usr.sbin/mergemaster 606 && make install). 607 60820130404: 609 Legacy ATA stack, disabled and replaced by new CAM-based one since 610 FreeBSD 9.0, completely removed from the sources. Kernel modules 611 atadisk and atapi*, user-level tools atacontrol and burncd are 612 removed. Kernel option `options ATA_CAM` is now permanently enabled 613 and removed. 614 61520130319: 616 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 617 and socketpair(2). Software, in particular Kerberos, may 618 automatically detect and use these during building. The resulting 619 binaries will not work on older kernels. 620 62120130308: 622 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 623 information, see the respective 20130304 entry). 624 62520130304: 626 Recent commits to callout(9) changed the size of struct callout, 627 so the KBI is probably heavily disturbed. Also, some functions 628 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 629 by macros. Every kernel module using it won't load, so rebuild 630 is requested. 631 632 The ctl device has been re-enabled in GENERIC for i386 and amd64, 633 but does not initialize by default (because of the new CTL_DISABLE 634 option) to save memory. To re-enable it, remove the CTL_DISABLE 635 option from the kernel config file or set kern.cam.ctl.disable=0 636 in /boot/loader.conf. 637 63820130301: 639 The ctl device has been disabled in GENERIC for i386 and amd64. 640 This was done due to the extra memory being allocated at system 641 initialisation time by the ctl driver which was only used if 642 a CAM target device was created. This makes a FreeBSD system 643 unusable on 128MB or less of RAM. 644 64520130208: 646 A new compression method (lz4) has been merged to -HEAD. Please 647 refer to zpool-features(7) for more information. 648 649 Please refer to the "ZFS notes" section of this file for information 650 on upgrading boot ZFS pools. 651 65220130129: 653 A BSD-licensed patch(1) variant has been added and is installed 654 as bsdpatch, being the GNU version the default patch. 655 To inverse the logic and use the BSD-licensed one as default, 656 while having the GNU version installed as gnupatch, rebuild 657 and install world with the WITH_BSD_PATCH knob set. 658 65920130121: 660 Due to the use of the new -l option to install(1) during build 661 and install, you must take care not to directly set the INSTALL 662 make variable in your /etc/make.conf, /etc/src.conf, or on the 663 command line. If you wish to use the -C flag for all installs 664 you may be able to add INSTALL+=-C to /etc/make.conf or 665 /etc/src.conf. 666 66720130118: 668 The install(1) option -M has changed meaning and now takes an 669 argument that is a file or path to append logs to. In the 670 unlikely event that -M was the last option on the command line 671 and the command line contained at least two files and a target 672 directory the first file will have logs appended to it. The -M 673 option served little practical purpose in the last decade so its 674 use is expected to be extremely rare. 675 67620121223: 677 After switching to Clang as the default compiler some users of ZFS 678 on i386 systems started to experience stack overflow kernel panics. 679 Please consider using 'options KSTACK_PAGES=4' in such configurations. 680 68120121222: 682 GEOM_LABEL now mangles label names read from file system metadata. 683 Mangling affect labels containing spaces, non-printable characters, 684 '%' or '"'. Device names in /etc/fstab and other places may need to 685 be updated. 686 68720121217: 688 By default, only the 10 most recent kernel dumps will be saved. To 689 restore the previous behaviour (no limit on the number of kernel dumps 690 stored in the dump directory) add the following line to /etc/rc.conf: 691 692 savecore_flags="" 693 69420121201: 695 With the addition of auditdistd(8), a new auditdistd user is now 696 required during installworld. "mergemaster -p" can be used to 697 add the user prior to installworld, as documented in the handbook. 698 69920121117: 700 The sin6_scope_id member variable in struct sockaddr_in6 is now 701 filled by the kernel before passing the structure to the userland via 702 sysctl or routing socket. This means the KAME-specific embedded scope 703 id in sin6_addr.s6_addr[2] is always cleared in userland application. 704 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 705 __FreeBSD_version is bumped to 1000025. 706 70720121105: 708 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 709 This means that the world and kernel will be compiled with clang 710 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 711 and /usr/bin/cpp. To disable this behavior and revert to building 712 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 713 of current may need to bootstrap WITHOUT_CLANG first if the clang 714 build fails (its compatibility window doesn't extend to the 9 stable 715 branch point). 716 71720121102: 718 The IPFIREWALL_FORWARD kernel option has been removed. Its 719 functionality now turned on by default. 720 72120121023: 722 The ZERO_COPY_SOCKET kernel option has been removed and 723 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 724 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 725 mechanism which is not safe and may result in kernel crashes. 726 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 727 driver supports disposeable external page sized mbuf storage. 728 Proper replacements for both zero-copy mechanisms are under 729 consideration and will eventually lead to complete removal 730 of the two kernel options. 731 73220121023: 733 The IPv4 network stack has been converted to network byte 734 order. The following modules need to be recompiled together 735 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 736 pf(4), ipfw(4), ng_ipfw(4), stf(4). 737 73820121022: 739 Support for non-MPSAFE filesystems was removed from VFS. The 740 VFS_VERSION was bumped, all filesystem modules shall be 741 recompiled. 742 74320121018: 744 All the non-MPSAFE filesystems have been disconnected from 745 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 746 portalfs, smbfs, xfs. 747 74820121016: 749 The interface cloning API and ABI has changed. The following 750 modules need to be recompiled together with kernel: 751 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 752 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 753 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 754 75520121015: 756 The sdhci driver was split in two parts: sdhci (generic SD Host 757 Controller logic) and sdhci_pci (actual hardware driver). 758 No kernel config modifications are required, but if you 759 load sdhc as a module you must switch to sdhci_pci instead. 760 76120121014: 762 Import the FUSE kernel and userland support into base system. 763 76420121013: 765 The GNU sort(1) program has been removed since the BSD-licensed 766 sort(1) has been the default for quite some time and no serious 767 problems have been reported. The corresponding WITH_GNU_SORT 768 knob has also gone. 769 77020121006: 771 The pfil(9) API/ABI for AF_INET family has been changed. Packet 772 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 773 with new kernel. 774 77520121001: 776 The net80211(4) ABI has been changed to allow for improved driver 777 PS-POLL and power-save support. All wireless drivers need to be 778 recompiled to work with the new kernel. 779 78020120913: 781 The random(4) support for the VIA hardware random number 782 generator (`PADLOCK') is no longer enabled unconditionally. 783 Add the padlock_rng device in the custom kernel config if 784 needed. The GENERIC kernels on i386 and amd64 do include the 785 device, so the change only affects the custom kernel 786 configurations. 787 78820120908: 789 The pf(4) packet filter ABI has been changed. pfctl(8) and 790 snmp_pf module need to be recompiled to work with new kernel. 791 79220120828: 793 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 794 to -HEAD. Pools that have empty_bpobj in active state can not be 795 imported read-write with ZFS implementations that do not support 796 this feature. For more information read the zpool-features(5) 797 manual page. 798 79920120727: 800 The sparc64 ZFS loader has been changed to no longer try to auto- 801 detect ZFS providers based on diskN aliases but now requires these 802 to be explicitly listed in the OFW boot-device environment variable. 803 80420120712: 805 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 806 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 807 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 808 80920120712: 810 The following sysctls and tunables have been renamed for consistency 811 with other variables: 812 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 813 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 814 81520120628: 816 The sort utility has been replaced with BSD sort. For now, GNU sort 817 is also available as "gnusort" or the default can be set back to 818 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 819 installed as "bsdsort". 820 82120120611: 822 A new version of ZFS (pool version 5000) has been merged to -HEAD. 823 Starting with this version the old system of ZFS pool versioning 824 is superseded by "feature flags". This concept enables forward 825 compatibility against certain future changes in functionality of ZFS 826 pools. The first read-only compatible "feature flag" for ZFS pools 827 is named "com.delphix:async_destroy". For more information 828 read the new zpool-features(5) manual page. 829 Please refer to the "ZFS notes" section of this file for information 830 on upgrading boot ZFS pools. 831 83220120417: 833 The malloc(3) implementation embedded in libc now uses sources imported 834 as contrib/jemalloc. The most disruptive API change is to 835 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 836 delete it prior to installworld, and optionally re-create it using the 837 new format after rebooting. See malloc.conf(5) for details 838 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 839 NAMESPACE section). 840 84120120328: 842 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 843 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 844 now spelled mips. This is to aid compatibility with third-party 845 software that expects this naming scheme in uname(3). Little-endian 846 settings are unchanged. If you are updating a big-endian mips64 machine 847 from before this change, you may need to set MACHINE_ARCH=mips64 in 848 your environment before the new build system will recognize your machine. 849 85020120306: 851 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 852 platforms. 853 85420120229: 855 Now unix domain sockets behave "as expected" on nullfs(5). Previously 856 nullfs(5) did not pass through all behaviours to the underlying layer, 857 as a result if we bound to a socket on the lower layer we could connect 858 only to the lower path; if we bound to the upper layer we could connect 859 only to the upper path. The new behavior is one can connect to both the 860 lower and the upper paths regardless what layer path one binds to. 861 86220120211: 863 The getifaddrs upgrade path broken with 20111215 has been restored. 864 If you have upgraded in between 20111215 and 20120209 you need to 865 recompile libc again with your kernel. You still need to recompile 866 world to be able to configure CARP but this restriction already 867 comes from 20111215. 868 86920120114: 870 The set_rcvar() function has been removed from /etc/rc.subr. All 871 base and ports rc.d scripts have been updated, so if you have a 872 port installed with a script in /usr/local/etc/rc.d you can either 873 hand-edit the rcvar= line, or reinstall the port. 874 875 An easy way to handle the mass-update of /etc/rc.d: 876 rm /etc/rc.d/* && mergemaster -i 877 87820120109: 879 panic(9) now stops other CPUs in the SMP systems, disables interrupts 880 on the current CPU and prevents other threads from running. 881 This behavior can be reverted using the kern.stop_scheduler_on_panic 882 tunable/sysctl. 883 The new behavior can be incompatible with kern.sync_on_panic. 884 88520111215: 886 The carp(4) facility has been changed significantly. Configuration 887 of the CARP protocol via ifconfig(8) has changed, as well as format 888 of CARP events submitted to devd(8) has changed. See manual pages 889 for more information. The arpbalance feature of carp(4) is currently 890 not supported anymore. 891 892 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 893 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 894 need to be recompiled. 895 89620111122: 897 The acpi_wmi(4) status device /dev/wmistat has been renamed to 898 /dev/wmistat0. 899 90020111108: 901 The option VFS_ALLOW_NONMPSAFE option has been added in order to 902 explicitely support non-MPSAFE filesystems. 903 It is on by default for all supported platform at this present 904 time. 905 90620111101: 907 The broken amd(4) driver has been replaced with esp(4) in the amd64, 908 i386 and pc98 GENERIC kernel configuration files. 909 91020110930: 911 sysinstall has been removed 912 91320110923: 914 The stable/9 branch created in subversion. This corresponds to the 915 RELENG_9 branch in CVS. 916 91720110913: 918 This commit modifies vfs_register() so that it uses a hash 919 calculation to set vfc_typenum, which is enabled by default. 920 The first time a system is booted after this change, the 921 vfc_typenum values will change for all file systems. The 922 main effect of this is a change to the NFS server file handles 923 for file systems that use vfc_typenum in their fsid, such as ZFS. 924 It will, however, prevent vfc_typenum from changing when file 925 systems are loaded in a different order for subsequent reboots. 926 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 927 until you are ready to remount all NFS clients after a reboot. 928 92920110828: 930 Bump the shared library version numbers for libraries that 931 do not use symbol versioning, have changed the ABI compared 932 to stable/8 and which shared library version was not bumped. 933 Done as part of 9.0-RELEASE cycle. 934 93520110815: 936 During the merge of Capsicum features, the fget(9) KPI was modified. 937 This may require the rebuilding of out-of-tree device drivers -- 938 issues have been reported specifically with the nVidia device driver. 939 __FreeBSD_version is bumped to 900041. 940 941 Also, there is a period between 20110811 and 20110814 where the 942 special devices /dev/{stdin,stdout,stderr} did not work correctly. 943 Building world from a kernel during that window may not work. 944 94520110628: 946 The packet filter (pf) code has been updated to OpenBSD 4.5. 947 You need to update userland tools to be in sync with kernel. 948 This update breaks backward compatibility with earlier pfsync(4) 949 versions. Care must be taken when updating redundant firewall setups. 950 95120110608: 952 The following sysctls and tunables are retired on x86 platforms: 953 machdep.hlt_cpus 954 machdep.hlt_logical_cpus 955 The following sysctl is retired: 956 machdep.hyperthreading_allowed 957 The sysctls were supposed to provide a way to dynamically offline and 958 online selected CPUs on x86 platforms, but the implementation has not 959 been reliable especially with SCHED_ULE scheduler. 960 machdep.hyperthreading_allowed tunable is still available to ignore 961 hyperthreading CPUs at OS level. 962 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 963 where X is an APIC ID of a CPU. Be advised, though, that disabling 964 CPUs in non-uniform fashion will result in non-uniform topology and 965 may lead to sub-optimal system performance with SCHED_ULE, which is 966 a default scheduler. 967 96820110607: 969 cpumask_t type is retired and cpuset_t is used in order to describe 970 a mask of CPUs. 971 97220110531: 973 Changes to ifconfig(8) for dynamic address family detection mandate 974 that you are running a kernel of 20110525 or later. Make sure to 975 follow the update procedure to boot a new kernel before installing 976 world. 977 97820110513: 979 Support for sun4v architecture is officially dropped 980 98120110503: 982 Several KPI breaking changes have been committed to the mii(4) layer, 983 the PHY drivers and consequently some Ethernet drivers using mii(4). 984 This means that miibus.ko and the modules of the affected Ethernet 985 drivers need to be recompiled. 986 987 Note to kernel developers: Given that the OUI bit reversion problem 988 was fixed as part of these changes all mii(4) commits related to OUIs, 989 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 990 handling, no longer can be merged verbatim to stable/8 and previous 991 branches. 992 99320110430: 994 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 995 into their kernel configurations along with 'device pci'. 996 99720110427: 998 The default NFS client is now the new NFS client, so fstype "newnfs" 999 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 1000 Although mounts via fstype "nfs" will usually work without userland 1001 changes, it is recommended that the mount(8) and mount_nfs(8) 1002 commands be rebuilt from sources and that a link to mount_nfs called 1003 mount_oldnfs be created. The new client is compiled into the 1004 kernel with "options NFSCL" and this is needed for diskless root 1005 file systems. The GENERIC kernel configs have been changed to use 1006 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 1007 To use the regular/old client, you can "mount -t oldnfs ...". For 1008 a diskless root file system, you must also include a line like: 1009 1010 vfs.root.mountfrom="oldnfs:" 1011 1012 in the boot/loader.conf on the root fs on the NFS server to make 1013 a diskless root fs use the old client. 1014 101520110424: 1016 The GENERIC kernels for all architectures now default to the new 1017 CAM-based ATA stack. It means that all legacy ATA drivers were 1018 removed and replaced by respective CAM drivers. If you are using 1019 ATA device names in /etc/fstab or other places, make sure to update 1020 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 1021 where 'Y's are the sequential numbers starting from zero for each type 1022 in order of detection, unless configured otherwise with tunables, 1023 see cam(4)). There will be symbolic links created in /dev/ to map 1024 old adX devices to the respective adaY. They should provide basic 1025 compatibility for file systems mounting in most cases, but they do 1026 not support old user-level APIs and do not have respective providers 1027 in GEOM. Consider using updated management tools with new device names. 1028 1029 It is possible to load devices ahci, ata, siis and mvs as modules, 1030 but option ATA_CAM should remain in kernel configuration to make ata 1031 module work as CAM driver supporting legacy ATA controllers. Device ata 1032 still can be used in modular fashion (atacore + ...). Modules atadisk 1033 and atapi* are not used and won't affect operation in ATA_CAM mode. 1034 Note that to use CAM-based ATA kernel should include CAM devices 1035 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1036 them are parts of the cam module. 1037 1038 ataraid(4) functionality is now supported by the RAID GEOM class. 1039 To use it you can load geom_raid kernel module and use graid(8) tool 1040 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1041 1042 No kernel config options or code have been removed, so if a problem 1043 arises, please report it and optionally revert to the old ATA stack. 1044 In order to do it you can remove from the kernel config: 1045 options ATA_CAM 1046 device ahci 1047 device mvs 1048 device siis 1049 , and instead add back: 1050 device atadisk # ATA disk drives 1051 device ataraid # ATA RAID drives 1052 device atapicd # ATAPI CDROM drives 1053 device atapifd # ATAPI floppy drives 1054 device atapist # ATAPI tape drives 1055 105620110423: 1057 The default NFS server has been changed to the new server, which 1058 was referred to as the experimental server. If you need to switch 1059 back to the old NFS server, you must now put the "-o" option on 1060 both the mountd and nfsd commands. This can be done using the 1061 mountd_flags and nfs_server_flags rc.conf variables until an 1062 update to the rc scripts is committed, which is coming soon. 1063 106420110418: 1065 The GNU Objective-C runtime library (libobjc), and other Objective-C 1066 related components have been removed from the base system. If you 1067 require an Objective-C library, please use one of the available ports. 1068 106920110331: 1070 ath(4) has been split into bus- and device- modules. if_ath contains 1071 the HAL, the TX rate control and the network device code. if_ath_pci 1072 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1073 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1074 in order to use ath on everything else. 1075 1076 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1077 need to load if_ath and if_ath_pci for ath(4) operation. 1078 107920110314: 1080 As part of the replacement of sysinstall, the process of building 1081 release media has changed significantly. For details, please re-read 1082 release(7), which has been updated to reflect the new build process. 1083 108420110218: 1085 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1086 is the last available version under GPLv2. It brings a number of new 1087 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1088 4.1 and SSE 4.2), better support for powerpc64, a number of new 1089 directives, and lots of other small improvements. See the ChangeLog 1090 file in contrib/binutils for the full details. 1091 109220110218: 1093 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1094 compliant, and will now use half of hash for authentication. 1095 This will break interoperability with all stacks (including all 1096 actual FreeBSD versions) who implement 1097 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1098 authentication). 1099 The only workaround with such peers is to use another HMAC 1100 algorithm for IPsec ("phase 2") authentication. 1101 110220110207: 1103 Remove the uio_yield prototype and symbol. This function has 1104 been misnamed since it was introduced and should not be 1105 globally exposed with this name. The equivalent functionality 1106 is now available using kern_yield(curthread->td_user_pri). 1107 The function remains undocumented. 1108 110920110112: 1110 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1111 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1112 for scalar sysctls is defined but disabled. Code that needs 1113 UQUAD to pass the type checking that must compile on older 1114 systems where the define is not present can check against 1115 __FreeBSD_version >= 900030. 1116 1117 The system dialog(1) has been replaced with a new version previously 1118 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1119 with the previous version, but the libdialog associated with it has 1120 a largely incompatible API. As such, the original version of libdialog 1121 will be kept temporarily as libodialog, until its base system consumers 1122 are replaced or updated. Bump __FreeBSD_version to 900030. 1123 112420110103: 1125 If you are trying to run make universe on a -stable system, and you get 1126 the following warning: 1127 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1128 unknown. config(8) likely too old." 1129 or something similar to it, then you must upgrade your -stable system 1130 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1131 stable/8) or build the config from the latest stable/8 branch and 1132 install it on your system. 1133 1134 Prior to this date, building a current universe on 8-stable system from 1135 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1136 error in the first kernel build phase. A new config on those old 1137 systems will fix that problem for older versions of -current. 1138 113920101228: 1140 The TCP stack has been modified to allow Khelp modules to interact with 1141 it via helper hook points and store per-connection data in the TCP 1142 control block. Bump __FreeBSD_version to 900029. User space tools that 1143 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1144 be recompiled. 1145 114620101114: 1147 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1148 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1149 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1150 to take advantage of it instead of using custom implementations. This 1151 means that these drivers now no longer unconditionally advertise 1152 support for flow control but only do so if flow control is a selected 1153 media option. This was implemented in the generic support that way in 1154 order to allow flow control to be switched on and off via ifconfig(8) 1155 with the PHY specific default to typically off in order to protect 1156 from unwanted effects. Consequently, if you used flow control with 1157 one of the above mentioned drivers you now need to explicitly enable 1158 it, for example via: 1159 ifconfig bge0 media auto mediaopt flowcontrol 1160 1161 Along with the above mentioned changes generic support for setting 1162 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1163 e1000phy(4) as well as ip1000phy(4) have been converted to take 1164 advantage of it. This means that these drivers now no longer take the 1165 link0 parameter for selecting master mode but the master media option 1166 has to be used instead, for example like in the following: 1167 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1168 1169 Selection of master mode now is also available with all other PHY 1170 drivers supporting 1000baseT. 1171 117220101111: 1173 The TCP stack has received a significant update to add support for 1174 modularised congestion control and generally improve the clarity of 1175 congestion control decisions. Bump __FreeBSD_version to 900025. User 1176 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1177 sockstat) need to be recompiled. 1178 117920101002: 1180 The man(1) utility has been replaced by a new version that no longer 1181 uses /etc/manpath.config. Please consult man.conf(5) for how to 1182 migrate local entries to the new format. 1183 118420100928: 1185 The copyright strings printed by login(1) and sshd(8) at the time of a 1186 new connection have been removed to follow other operating systems and 1187 upstream sshd. 1188 118920100915: 1190 A workaround for a fixed ld bug has been removed in kernel code, 1191 so make sure that your system ld is built from sources after 1192 revision 210245 from 2010-07-19 (r211583 if building head kernel 1193 on stable/8, r211584 for stable/7; both from 2010-08-21). 1194 A symptom of incorrect ld version is different addresses for 1195 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1196 119720100913: 1198 The $ipv6_prefer variable in rc.conf(5) has been split into 1199 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1200 1201 The $ip6addrctl_policy is a variable to choose a pre-defined 1202 address selection policy set by ip6addrctl(8). A value 1203 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1204 default is "AUTO". 1205 1206 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1207 flag (see an entry of 20090926) is set on an interface with no 1208 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1209 security reason. If you want IPv6 link-local address on all 1210 interfaces by default, set this to "YES". 1211 1212 The old ipv6_prefer="YES" is equivalent to 1213 ipv6_activate_all_interfaces="YES" and 1214 ip6addrctl_policy="ipv6_prefer". 1215 121620100913: 1217 DTrace has grown support for userland tracing. Due to this, DTrace is 1218 now i386 and amd64 only. 1219 dtruss(1) is now installed by default on those systems and a new 1220 kernel module is needed for userland tracing: fasttrap. 1221 No changes to your kernel config file are necessary to enable 1222 userland tracing, but you might consider adding 'STRIP=' and 1223 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1224 to have informative userland stack traces in DTrace (ustack). 1225 122620100725: 1227 The acpi_aiboost(4) driver has been removed in favor of the new 1228 aibs(4) driver. You should update your kernel configuration file. 1229 123020100722: 1231 BSD grep has been imported to the base system and it is built by 1232 default. It is completely BSD licensed, highly GNU-compatible, uses 1233 less memory than its GNU counterpart and has a small codebase. 1234 However, it is slower than its GNU counterpart, which is mostly 1235 noticeable for larger searches, for smaller ones it is measurable 1236 but not significant. The reason is complex, the most important factor 1237 is that we lack a modern and efficient regex library and GNU 1238 overcomes this by optimizing the searches internally. Future work 1239 on improving the regex performance is planned, for the meantime, 1240 users that need better performance, can build GNU grep instead by 1241 setting the WITH_GNU_GREP knob. 1242 124320100713: 1244 Due to the import of powerpc64 support, all existing powerpc kernel 1245 configuration files must be updated with a machine directive like this: 1246 machine powerpc powerpc 1247 1248 In addition, an updated config(8) is required to build powerpc kernels 1249 after this change. 1250 125120100713: 1252 A new version of ZFS (version 15) has been merged to -HEAD. 1253 This version uses a python library for the following subcommands: 1254 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1255 For full functionality of these commands the following port must 1256 be installed: sysutils/py-zfs 1257 125820100429: 1259 'vm_page's are now hashed by physical address to an array of mutexes. 1260 Currently this is only used to serialize access to hold_count. Over 1261 time the page queue mutex will be peeled away. This changes the size 1262 of pmap on every architecture. And requires all callers of vm_page_hold 1263 and vm_page_unhold to be updated. 1264 126520100402: 1266 WITH_CTF can now be specified in src.conf (not recommended, there 1267 are some problems with static executables), make.conf (would also 1268 affect ports which do not use GNU make and do not override the 1269 compile targets) or in the kernel config (via "makeoptions 1270 WITH_CTF=yes"). 1271 When WITH_CTF was specified there before this was silently ignored, 1272 so make sure that WITH_CTF is not used in places which could lead 1273 to unwanted behavior. 1274 127520100311: 1276 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1277 to allow 32-bit compatibility on non-x86 platforms. All kernel 1278 configurations on amd64 and ia64 platforms using these options must 1279 be modified accordingly. 1280 128120100113: 1282 The utmp user accounting database has been replaced with utmpx, 1283 the user accounting interface standardized by POSIX. 1284 Unfortunately the semantics of utmp and utmpx don't match, 1285 making it practically impossible to support both interfaces. 1286 The user accounting database is used by tools like finger(1), 1287 last(1), talk(1), w(1) and ac(8). 1288 1289 All applications in the base system use utmpx. This means only 1290 local binaries (e.g. from the ports tree) may still use these 1291 utmp database files. These applications must be rebuilt to make 1292 use of utmpx. 1293 1294 After the system has been upgraded, it is safe to remove the old 1295 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1296 assuming their contents is of no importance anymore. Old wtmp 1297 databases can only be used by last(1) and ac(8) after they have 1298 been converted to the new format using wtmpcvt(1). 1299 130020100108: 1301 Introduce the kernel thread "deadlock resolver" (which can be enabled 1302 via the DEADLKRES option, see NOTES for more details) and the 1303 sleepq_type() function for sleepqueues. 1304 130520091202: 1306 The rc.firewall and rc.firewall6 were unified, and 1307 rc.firewall6 and rc.d/ip6fw were removed. 1308 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1309 variables are obsoleted. Instead, the following new rc 1310 variables are added to rc.d/ipfw: 1311 1312 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1313 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1314 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1315 1316 The meanings correspond to the relevant IPv4 variables. 1317 131820091125: 1319 8.0-RELEASE. 1320 132120091113: 1322 The default terminal emulation for syscons(4) has been changed 1323 from cons25 to xterm on all platforms except pc98. This means 1324 that the /etc/ttys file needs to be updated to ensure correct 1325 operation of applications on the console. 1326 1327 The terminal emulation style can be toggled per window by using 1328 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1329 options can be used to change the compile-time default back to 1330 cons25. 1331 1332 To prevent graphical artifacts, make sure the TERM environment 1333 variable is set to match the terminal emulation that is being 1334 performed by syscons(4). 1335 133620091109: 1337 The layout of the structure ieee80211req_scan_result has changed. 1338 Applications that require wireless scan results (e.g. ifconfig(8)) 1339 from net80211 need to be recompiled. 1340 1341 Applications such as wpa_supplicant(8) may require a full world 1342 build without using NO_CLEAN in order to get synchronized with the 1343 new structure. 1344 134520091025: 1346 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1347 There's one kernel module for each firmware. Adding "device iwnfw" 1348 to the kernel configuration file means including all three firmware 1349 images inside the kernel. If you want to include just the one for 1350 your wireless card, use the devices iwn4965fw, iwn5000fw or 1351 iwn5150fw. 1352 135320090926: 1354 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1355 into rc.d/netif. The changes are the following: 1356 1357 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1358 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1359 Note that both variables need the "inet6" keyword at the head. 1360 1361 Do not set $ipv6_network_interfaces manually if you do not 1362 understand what you are doing. It is not needed in most cases. 1363 1364 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1365 they are obsolete. 1366 1367 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1368 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1369 1370 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1371 all configured interfaces have "inet6 accept_rtadv" in the 1372 $ifconfig_IF_ipv6. These are for backward compatibility. 1373 1374 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1375 functionality of interfaces with no corresponding 1376 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1377 and the default address selection policy of ip6addrctl(8) 1378 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1379 Note that if you want to configure IPv6 functionality on the 1380 disabled interfaces after boot, first you need to clear the flag by 1381 using ifconfig(8) like: 1382 1383 ifconfig em0 inet6 -ifdisabled 1384 1385 If YES, the default address selection policy is set as 1386 IPv6-preferred. 1387 1388 The default value of $ipv6_prefer is NO. 1389 1390 4. If your system need to receive Router Advertisement messages, 1391 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1392 scripts automatically invoke rtsol(8) when the interface becomes 1393 UP. The Router Advertisement messages are used for SLAAC 1394 (State-Less Address AutoConfiguration). 1395 139620090922: 1397 802.11s D3.03 support was committed. This is incompatible with the 1398 previous code, which was based on D3.0. 1399 140020090912: 1401 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1402 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1403 control whether accepting Router Advertisement messages or not. 1404 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1405 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1406 The ifconfig(8) utility now supports these flags. 1407 140820090910: 1409 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1410 mount(8) and -a option for df(1) to see them. 1411 141220090825: 1413 The old tunable hw.bus.devctl_disable has been superseded by 1414 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1415 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1416 is 1000. 1417 141820090813: 1419 Remove the option STOP_NMI. The default action is now to use NMI only 1420 for KDB via the newly introduced function stop_cpus_hard() and 1421 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1422 142320090803: 1424 The stable/8 branch created in subversion. This corresponds to the 1425 RELENG_8 branch in CVS. 1426 142720090719: 1428 Bump the shared library version numbers for all libraries that do not 1429 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1430 __FreeBSD_version to 800105. 1431 143220090714: 1433 Due to changes in the implementation of virtual network stack support, 1434 all network-related kernel modules must be recompiled. As this change 1435 breaks the ABI, bump __FreeBSD_version to 800104. 1436 143720090713: 1438 The TOE interface to the TCP syncache has been modified to remove 1439 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1440 The cxgb driver is the only TOE consumer affected by this change, and 1441 needs to be recompiled along with the kernel. As this change breaks 1442 the ABI, bump __FreeBSD_version to 800103. 1443 144420090712: 1445 Padding has been added to struct tcpcb, sackhint and tcpstat in 1446 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1447 maintaining the ABI. However, this change breaks the ABI, so bump 1448 __FreeBSD_version to 800102. User space tools that rely on the size of 1449 any of these structs (e.g. sockstat) need to be recompiled. 1450 145120090630: 1452 The NFS_LEGACYRPC option has been removed along with the old kernel 1453 RPC implementation that this option selected. Kernel configurations 1454 may need to be adjusted. 1455 145620090629: 1457 The network interface device nodes at /dev/net/<interface> have been 1458 removed. All ioctl operations can be performed the normal way using 1459 routing sockets. The kqueue functionality can generally be replaced 1460 with routing sockets. 1461 146220090628: 1463 The documentation from the FreeBSD Documentation Project (Handbook, 1464 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1465 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1466 146720090624: 1468 The ABI of various structures related to the SYSV IPC API have been 1469 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1470 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1471 800100. 1472 147320090622: 1474 Layout of struct vnet has changed as routing related variables were 1475 moved to their own Vimage module. Modules need to be recompiled. Bump 1476 __FreeBSD_version to 800099. 1477 147820090619: 1479 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1480 respectively. As long as no more than 16 groups per process are used, 1481 no changes should be visible. When more than 16 groups are used, old 1482 binaries may fail if they call getgroups() or getgrouplist() with 1483 statically sized storage. Recompiling will work around this, but 1484 applications should be modified to use dynamically allocated storage 1485 for group arrays as POSIX.1-2008 does not cap an implementation's 1486 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1487 1488 NFS and portalfs mounts may also be affected as the list of groups is 1489 truncated to 16. Users of NFS who use more than 16 groups, should 1490 take care that negative group permissions are not used on the exported 1491 file systems as they will not be reliable unless a GSSAPI based 1492 authentication method is used. 1493 149420090616: 1495 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1496 option compiles in the support for adaptive spinning for lockmgrs 1497 which want to enable it. The lockinit() function now accepts the flag 1498 LK_ADAPTIVE in order to make the lock object subject to adaptive 1499 spinning when both held in write and read mode. 1500 150120090613: 1502 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1503 changed. User applications that use this ioctl need to be rebuilt. 1504 150520090611: 1506 The layout of struct thread has changed. Kernel and modules need to 1507 be rebuilt. 1508 150920090608: 1510 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1511 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1512 151320090602: 1514 window(1) has been removed from the base system. It can now be 1515 installed from ports. The port is called misc/window. 1516 151720090601: 1518 The way we are storing and accessing `routing table' entries has 1519 changed. Programs reading the FIB, like netstat, need to be 1520 re-compiled. 1521 152220090601: 1523 A new netisr implementation has been added for FreeBSD 8. Network 1524 file system modules, such as igmp, ipdivert, and others, should be 1525 rebuilt. 1526 Bump __FreeBSD_version to 800096. 1527 152820090530: 1529 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1530 more valid. 1531 153220090530: 1533 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1534 Bump __FreeBSD_version to 800094. 1535 153620090529: 1537 Add mnt_xflag field to 'struct mount'. File system modules need to be 1538 rebuilt. 1539 Bump __FreeBSD_version to 800093. 1540 154120090528: 1542 The compiling option ADAPTIVE_SX has been retired while it has been 1543 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1544 The KPI for sx_init_flags() changes as accepting flags: 1545 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1546 been introduced in order to handle the reversed logic. 1547 Bump __FreeBSD_version to 800092. 1548 154920090527: 1550 Add support for hierarchical jails. Remove global securelevel. 1551 Bump __FreeBSD_version to 800091. 1552 155320090523: 1554 The layout of struct vnet_net has changed, therefore modules 1555 need to be rebuilt. 1556 Bump __FreeBSD_version to 800090. 1557 155820090523: 1559 The newly imported zic(8) produces a new format in the output. Please 1560 run tzsetup(8) to install the newly created data to /etc/localtime. 1561 156220090520: 1563 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1564 hw.usb.* and is now consistent again with previous releases. 1565 156620090520: 1567 802.11 monitor mode support was revised and driver api's were changed. 1568 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1569 of DLT_IEEE802_11. No user-visible data structures were changed but 1570 applications that use DLT_IEEE802_11 may require changes. 1571 Bump __FreeBSD_version to 800088. 1572 157320090430: 1574 The layout of the following structs has changed: sysctl_oid, 1575 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1576 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1577 panics may be experienced. World rebuild is required for 1578 correctly checking networking state from userland. 1579 Bump __FreeBSD_version to 800085. 1580 158120090429: 1582 MLDv2 and Source-Specific Multicast (SSM) have been merged 1583 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1584 The implementation of SSM within FreeBSD's IPv6 stack closely 1585 follows the IPv4 implementation. 1586 1587 For kernel developers: 1588 1589 * The most important changes are that the ip6_output() and 1590 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1591 and this lock has been downgraded to a non-recursive mutex. 1592 1593 * As with the changes to the IPv4 stack to support SSM, filtering 1594 of inbound multicast traffic must now be performed by transport 1595 protocols within the IPv6 stack. This does not apply to TCP and 1596 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1597 1598 * The KPIs used by IPv6 multicast are similar to those used by 1599 the IPv4 stack, with the following differences: 1600 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1601 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1602 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1603 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1604 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1605 for MLDv1 have an additional 'timer' argument which is used to 1606 jitter the initial membership report for the solicited-node 1607 multicast membership on-link. 1608 * This is not strictly needed for MLDv2, which already jitters 1609 its report transmissions. However, the 'timer' argument is 1610 preserved in case MLDv1 is active on the interface. 1611 1612 * The KAME linked-list based IPv6 membership implementation has 1613 been refactored to use a vector similar to that used by the IPv4 1614 stack. 1615 Code which maintains a list of its own multicast memberships 1616 internally, e.g. carp, has been updated to reflect the new 1617 semantics. 1618 1619 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1620 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1621 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1622 implementation constraint which needs to be addressed in HEAD. 1623 1624 For application developers: 1625 1626 * The changes are broadly similar to those made for the IPv4 1627 stack. 1628 1629 * The use of IPv4 and IPv6 multicast socket options on the same 1630 socket, using mapped addresses, HAS NOT been tested or supported. 1631 1632 * There are a number of issues with the implementation of various 1633 IPv6 multicast APIs which need to be resolved in the API surface 1634 before the implementation is fully compatible with KAME userland 1635 use, and these are mostly to do with interface index treatment. 1636 1637 * The literature available discusses the use of either the delta / ASM 1638 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1639 using setsourcefilter(3)/getsourcefilter(3). For more information 1640 please refer to RFC 3768, 'Socket Interface Extensions for 1641 Multicast Source Filters'. 1642 1643 * Applications which use the published RFC 3678 APIs should be fine. 1644 1645 For systems administrators: 1646 1647 * The mtest(8) utility has been refactored to support IPv6, in 1648 addition to IPv4. Interface addresses are no longer accepted 1649 as arguments, their names must be used instead. The utility 1650 will map the interface name to its first IPv4 address as 1651 returned by getifaddrs(3). 1652 1653 * The ifmcstat(8) utility has also been updated to print the MLDv2 1654 endpoint state and source filter lists via sysctl(3). 1655 1656 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1657 loopback of IPv6 multicast datagrams by default; it defaults to 1 1658 to preserve the existing behaviour. Disabling multicast loopback is 1659 recommended for optimal system performance. 1660 1661 * The IPv6 MROUTING code has been changed to examine this sysctl 1662 instead of attempting to perform a group lookup before looping 1663 back forwarded datagrams. 1664 1665 Bump __FreeBSD_version to 800084. 1666 166720090422: 1668 Implement low-level Bluetooth HCI API. 1669 Bump __FreeBSD_version to 800083. 1670 167120090419: 1672 The layout of struct malloc_type, used by modules to register new 1673 memory allocation types, has changed. Most modules will need to 1674 be rebuilt or panics may be experienced. 1675 Bump __FreeBSD_version to 800081. 1676 167720090415: 1678 Anticipate overflowing inp_flags - add inp_flags2. 1679 This changes most offsets in inpcb, so checking v4 connection 1680 state will require a world rebuild. 1681 Bump __FreeBSD_version to 800080. 1682 168320090415: 1684 Add an llentry to struct route and struct route_in6. Modules 1685 embedding a struct route will need to be recompiled. 1686 Bump __FreeBSD_version to 800079. 1687 168820090414: 1689 The size of rt_metrics_lite and by extension rtentry has changed. 1690 Networking administration apps will need to be recompiled. 1691 The route command now supports show as an alias for get, weighting 1692 of routes, sticky and nostick flags to alter the behavior of stateful 1693 load balancing. 1694 Bump __FreeBSD_version to 800078. 1695 169620090408: 1697 Do not use Giant for kbdmux(4) locking. This is wrong and 1698 apparently causing more problems than it solves. This will 1699 re-open the issue where interrupt handlers may race with 1700 kbdmux(4) in polling mode. Typical symptoms include (but 1701 not limited to) duplicated and/or missing characters when 1702 low level console functions (such as gets) are used while 1703 interrupts are enabled (for example geli password prompt, 1704 mountroot prompt etc.). Disabling kbdmux(4) may help. 1705 170620090407: 1707 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1708 kernel modules referencing any of the above need to be recompiled. 1709 Bump __FreeBSD_version to 800075. 1710 171120090320: 1712 GEOM_PART has become the default partition slicer for storage devices, 1713 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1714 introduces some changes: 1715 1716 MSDOS/EBR: the devices created from MSDOS extended partition entries 1717 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1718 to devices with offset-based names. fstabs may need to be modified. 1719 1720 BSD: the "geometry does not match label" warning is harmless in most 1721 cases but it points to problems in file system misalignment with 1722 disk geometry. The "c" partition is now implicit, covers the whole 1723 top-level drive and cannot be (mis)used by users. 1724 1725 General: Kernel dumps are now not allowed to be written to devices 1726 whose partition types indicate they are meant to be used for file 1727 systems (or, in case of MSDOS partitions, as something else than 1728 the "386BSD" type). 1729 1730 Most of these changes date approximately from 200812. 1731 173220090319: 1733 The uscanner(4) driver has been removed from the kernel. This follows 1734 Linux removing theirs in 2.6 and making libusb the default interface 1735 (supported by sane). 1736 173720090319: 1738 The multicast forwarding code has been cleaned up. netstat(1) 1739 only relies on KVM now for printing bandwidth upcall meters. 1740 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1741 ip6_mroute_mod respectively. The config(5) options for statically 1742 compiling this code remain the same, i.e. 'options MROUTING'. 1743 174420090315: 1745 Support for the IFF_NEEDSGIANT network interface flag has been 1746 removed, which means that non-MPSAFE network device drivers are no 1747 longer supported. In particular, if_ar, if_sr, and network device 1748 drivers from the old (legacy) USB stack can no longer be built or 1749 used. 1750 175120090313: 1752 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1753 a bunch of new language catalog files have also been added. 1754 This means that some common libc messages are now localized and 1755 they depend on the LC_MESSAGES environmental variable. 1756 175720090313: 1758 The k8temp(4) driver has been renamed to amdtemp(4) since 1759 support for Family 10 and Family 11 CPU families was added. 1760 176120090309: 1762 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1763 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1764 1765 For kernel developers, the most important changes are that the 1766 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1767 and this lock has been downgraded to a non-recursive mutex. 1768 1769 Transport protocols (UDP, Raw IP) are now responsible for filtering 1770 inbound multicast traffic according to group membership and source 1771 filters. The imo_multicast_filter() KPI exists for this purpose. 1772 Transports which do not use multicast (SCTP, TCP) already reject 1773 multicast by default. Forwarding and receive performance may improve 1774 as a mutex acquisition is no longer needed in the ip_input() 1775 low-level input path. in_addmulti() and in_delmulti() are shimmed 1776 to new KPIs which exist to support SSM in-kernel. 1777 1778 For application developers, it is recommended that loopback of 1779 multicast datagrams be disabled for best performance, as this 1780 will still cause the lock to be taken for each looped-back 1781 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1782 be tuned to 0 to disable loopback by default; it defaults to 1 1783 to preserve the existing behaviour. 1784 1785 For systems administrators, to obtain best performance with 1786 multicast reception and multiple groups, it is always recommended 1787 that a card with a suitably precise hash filter is used. Hash 1788 collisions will still result in the lock being taken within the 1789 transport protocol input path to check group membership. 1790 1791 If deploying FreeBSD in an environment with IGMP snooping switches, 1792 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1793 enabled; this forces 224.0.0.0/24 group membership to be announced 1794 via IGMP. 1795 1796 The size of 'struct igmpstat' has changed; netstat needs to be 1797 recompiled to reflect this. 1798 Bump __FreeBSD_version to 800070. 1799 180020090309: 1801 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1802 updated to use it. This requires a buildworld/installworld in order to 1803 update the library and dependencies (usbconfig, etc). Its advisable to 1804 rebuild all ports which uses libusb. More specific directions are given 1805 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1806 libusb are no longer required and can be removed. 1807 180820090302: 1809 A workaround is committed to allow the creation of System V shared 1810 memory segment of size > 2 GB on the 64-bit architectures. 1811 Due to a limitation of the existing ABI, the shm_segsz member 1812 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1813 wrong for large segments. Note that limits must be explicitly 1814 raised to allow such segments to be created. 1815 181620090301: 1817 The layout of struct ifnet has changed, requiring a rebuild of all 1818 network device driver modules. 1819 182020090227: 1821 The /dev handling for the new USB stack has changed, a 1822 buildworld/installworld is required for libusb20. 1823 182420090223: 1825 The new USB2 stack has now been permanently moved in and all kernel and 1826 module names reverted to their previous values (eg, usb, ehci, ohci, 1827 ums, ...). The old usb stack can be compiled in by prefixing the name 1828 with the letter 'o', the old usb modules have been removed. 1829 Updating entry 20090216 for xorg and 20090215 for libmap may still 1830 apply. 1831 183220090217: 1833 The rc.conf(5) option if_up_delay has been renamed to 1834 defaultroute_delay to better reflect its purpose. If you have 1835 customized this setting in /etc/rc.conf you need to update it to 1836 use the new name. 1837 183820090216: 1839 xorg 7.4 wants to configure its input devices via hald which does not 1840 yet work with USB2. If the keyboard/mouse does not work in xorg then 1841 add 1842 Option "AllowEmptyInput" "off" 1843 to your ServerLayout section. This will cause X to use the configured 1844 kbd and mouse sections from your xorg.conf. 1845 184620090215: 1847 The GENERIC kernels for all architectures now default to the new USB2 1848 stack. No kernel config options or code have been removed so if a 1849 problem arises please report it and optionally revert to the old USB 1850 stack. If you are loading USB kernel modules or have a custom kernel 1851 that includes GENERIC then ensure that usb names are also changed over, 1852 eg uftdi -> usb2_serial_ftdi. 1853 1854 Older programs linked against the ports libusb 0.1 need to be 1855 redirected to the new stack's libusb20. /etc/libmap.conf can 1856 be used for this: 1857 # Map old usb library to new one for usb2 stack 1858 libusb-0.1.so.8 libusb20.so.1 1859 186020090209: 1861 All USB ethernet devices now attach as interfaces under the name ueN 1862 (eg. ue0). This is to provide a predictable name as vendors often 1863 change usb chipsets in a product without notice. 1864 186520090203: 1866 The ichsmb(4) driver has been changed to require SMBus slave 1867 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1868 All of the other SMBus controller drivers require left-justified 1869 slave addresses, so this change makes all the drivers provide the 1870 same interface. 1871 187220090201: 1873 INET6 statistics (struct ip6stat) was updated. 1874 netstat(1) needs to be recompiled. 1875 187620090119: 1877 NTFS has been removed from GENERIC kernel on amd64 to match 1878 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1879 will load ntfs.ko module automatically when NTFS support is 1880 actually needed, unless ntfs.ko is not installed or security 1881 level prohibits loading kernel modules. If either is the case, 1882 "options NTFS" has to be added into kernel config. 1883 188420090115: 1885 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1886 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1887 800061. User space tools that rely on the size of struct tcpcb in 1888 tcp_var.h (e.g. sockstat) need to be recompiled. 1889 189020081225: 1891 ng_tty(4) module updated to match the new TTY subsystem. 1892 Due to API change, user-level applications must be updated. 1893 New API support added to mpd5 CVS and expected to be present 1894 in next mpd5.3 release. 1895 189620081219: 1897 With __FreeBSD_version 800060 the makefs tool is part of 1898 the base system (it was a port). 1899 190020081216: 1901 The afdata and ifnet locks have been changed from mutexes to 1902 rwlocks, network modules will need to be re-compiled. 1903 190420081214: 1905 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1906 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1907 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1908 architecture and 40 bytes on 64-bit architecture. The userland 1909 applications "arp" and "ndp" have been updated accordingly. 1910 The output from "netstat -r" shows only routing entries and 1911 none of the L2 information. 1912 191320081130: 1914 __FreeBSD_version 800057 marks the switchover from the 1915 binary ath hal to source code. Users must add the line: 1916 1917 options AH_SUPPORT_AR5416 1918 1919 to their kernel config files when specifying: 1920 1921 device ath_hal 1922 1923 The ath_hal module no longer exists; the code is now compiled 1924 together with the driver in the ath module. It is now 1925 possible to tailor chip support (i.e. reduce the set of chips 1926 and thereby the code size); consult ath_hal(4) for details. 1927 192820081121: 1929 __FreeBSD_version 800054 adds memory barriers to 1930 <machine/atomic.h>, new interfaces to ifnet to facilitate 1931 multiple hardware transmit queues for cards that support 1932 them, and a lock-less ring-buffer implementation to 1933 enable drivers to more efficiently manage queueing of 1934 packets. 1935 193620081117: 1937 A new version of ZFS (version 13) has been merged to -HEAD. 1938 This version has zpool attribute "listsnapshots" off by 1939 default, which means "zfs list" does not show snapshots, 1940 and is the same as Solaris behavior. 1941 194220081028: 1943 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1944 194520081009: 1946 The uhci, ohci, ehci and slhci USB Host controller drivers have 1947 been put into separate modules. If you load the usb module 1948 separately through loader.conf you will need to load the 1949 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1950 controller add the following to loader.conf: 1951 1952 uhci_load="YES" 1953 ehci_load="YES" 1954 195520081009: 1956 The ABI used by the PMC toolset has changed. Please keep 1957 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1958 sync. 1959 196020081009: 1961 atapci kernel module now includes only generic PCI ATA 1962 driver. AHCI driver moved to ataahci kernel module. 1963 All vendor-specific code moved into separate kernel modules: 1964 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1965 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1966 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1967 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1968 196920080820: 1970 The TTY subsystem of the kernel has been replaced by a new 1971 implementation, which provides better scalability and an 1972 improved driver model. Most common drivers have been migrated to 1973 the new TTY subsystem, while others have not. The following 1974 drivers have not yet been ported to the new TTY layer: 1975 1976 PCI/ISA: 1977 cy, digi, rc, rp, sio 1978 1979 USB: 1980 ubser, ucycom 1981 1982 Line disciplines: 1983 ng_h4, ng_tty, ppp, sl, snp 1984 1985 Adding these drivers to your kernel configuration file shall 1986 cause compilation to fail. 1987 198820080818: 1989 ntpd has been upgraded to 4.2.4p5. 1990 199120080801: 1992 OpenSSH has been upgraded to 5.1p1. 1993 1994 For many years, FreeBSD's version of OpenSSH preferred DSA 1995 over RSA for host and user authentication keys. With this 1996 upgrade, we've switched to the vendor's default of RSA over 1997 DSA. This may cause upgraded clients to warn about unknown 1998 host keys even for previously known hosts. Users should 1999 follow the usual procedure for verifying host keys before 2000 accepting the RSA key. 2001 2002 This can be circumvented by setting the "HostKeyAlgorithms" 2003 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 2004 command line. 2005 2006 Please note that the sequence of keys offered for 2007 authentication has been changed as well. You may want to 2008 specify IdentityFile in a different order to revert this 2009 behavior. 2010 201120080713: 2012 The sio(4) driver has been removed from the i386 and amd64 2013 kernel configuration files. This means uart(4) is now the 2014 default serial port driver on those platforms as well. 2015 2016 To prevent collisions with the sio(4) driver, the uart(4) driver 2017 uses different names for its device nodes. This means the 2018 onboard serial port will now most likely be called "ttyu0" 2019 instead of "ttyd0". You may need to reconfigure applications to 2020 use the new device names. 2021 2022 When using the serial port as a boot console, be sure to update 2023 /boot/device.hints and /etc/ttys before booting the new kernel. 2024 If you forget to do so, you can still manually specify the hints 2025 at the loader prompt: 2026 2027 set hint.uart.0.at="isa" 2028 set hint.uart.0.port="0x3F8" 2029 set hint.uart.0.flags="0x10" 2030 set hint.uart.0.irq="4" 2031 boot -s 2032 203320080609: 2034 The gpt(8) utility has been removed. Use gpart(8) to partition 2035 disks instead. 2036 203720080603: 2038 The version that Linuxulator emulates was changed from 2.4.2 2039 to 2.6.16. If you experience any problems with Linux binaries 2040 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2041 if it fixes the problem contact emulation mailing list. 2042 204320080525: 2044 ISDN4BSD (I4B) was removed from the src tree. You may need to 2045 update a your kernel configuration and remove relevant entries. 2046 204720080509: 2048 I have checked in code to support multiple routing tables. 2049 See the man pages setfib(1) and setfib(2). 2050 This is a hopefully backwards compatible version, 2051 but to make use of it you need to compile your kernel 2052 with options ROUTETABLES=2 (or more up to 16). 2053 205420080420: 2055 The 802.11 wireless support was redone to enable multi-bss 2056 operation on devices that are capable. The underlying device 2057 is no longer used directly but instead wlanX devices are 2058 cloned with ifconfig. This requires changes to rc.conf files. 2059 For example, change: 2060 ifconfig_ath0="WPA DHCP" 2061 to 2062 wlans_ath0=wlan0 2063 ifconfig_wlan0="WPA DHCP" 2064 see rc.conf(5) for more details. In addition, mergemaster of 2065 /etc/rc.d is highly recommended. Simultaneous update of userland 2066 and kernel wouldn't hurt either. 2067 2068 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2069 modules were merged into the base wlan module. All references 2070 to these modules (e.g. in kernel config files) must be removed. 2071 207220080408: 2073 psm(4) has gained write(2) support in native operation level. 2074 Arbitrary commands can be written to /dev/psm%d and status can 2075 be read back from it. Therefore, an application is responsible 2076 for status validation and error recovery. It is a no-op in 2077 other operation levels. 2078 207920080312: 2080 Support for KSE threading has been removed from the kernel. To 2081 run legacy applications linked against KSE libmap.conf may 2082 be used. The following libmap.conf may be used to ensure 2083 compatibility with any prior release: 2084 2085 libpthread.so.1 libthr.so.1 2086 libpthread.so.2 libthr.so.2 2087 libkse.so.3 libthr.so.3 2088 208920080301: 2090 The layout of struct vmspace has changed. This affects libkvm 2091 and any executables that link against libkvm and use the 2092 kvm_getprocs() function. In particular, but not exclusively, 2093 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2094 The effects are minimal, but it's advisable to upgrade world 2095 nonetheless. 2096 209720080229: 2098 The latest em driver no longer has support in it for the 2099 82575 adapter, this is now moved to the igb driver. The 2100 split was done to make new features that are incompatible 2101 with older hardware easier to do. 2102 210320080220: 2104 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2105 likewise the kernel option is now GEOM_LINUX_LVM. 2106 210720080211: 2108 The default NFS mount mode has changed from UDP to TCP for 2109 increased reliability. If you rely on (insecurely) NFS 2110 mounting across a firewall you may need to update your 2111 firewall rules. 2112 211320080208: 2114 Belatedly note the addition of m_collapse for compacting 2115 mbuf chains. 2116 211720080126: 2118 The fts(3) structures have been changed to use adequate 2119 integer types for their members and so to be able to cope 2120 with huge file trees. The old fts(3) ABI is preserved 2121 through symbol versioning in libc, so third-party binaries 2122 using fts(3) should still work, although they will not take 2123 advantage of the extended types. At the same time, some 2124 third-party software might fail to build after this change 2125 due to unportable assumptions made in its source code about 2126 fts(3) structure members. Such software should be fixed 2127 by its vendor or, in the worst case, in the ports tree. 2128 FreeBSD_version 800015 marks this change for the unlikely 2129 case that a portable fix is impossible. 2130 213120080123: 2132 To upgrade to -current after this date, you must be running 2133 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2134 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2135 213620071128: 2137 The ADAPTIVE_GIANT kernel option has been retired because its 2138 functionality is the default now. 2139 214020071118: 2141 The AT keyboard emulation of sunkbd(4) has been turned on 2142 by default. In order to make the special symbols of the Sun 2143 keyboards driven by sunkbd(4) work under X these now have 2144 to be configured the same way as Sun USB keyboards driven 2145 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2146 2147 Option "XkbLayout" "us" 2148 Option "XkbRules" "xorg" 2149 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2150 215120071024: 2152 It has been decided that it is desirable to provide ABI 2153 backwards compatibility to the FreeBSD 4/5/6 versions of the 2154 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2155 broken with the introduction of PCI domain support (see the 2156 20070930 entry). Unfortunately, this required the ABI of 2157 PCIOCGETCONF to be broken again in order to be able to 2158 provide backwards compatibility to the old version of that 2159 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2160 again. As for prominent ports this affects neither pciutils 2161 nor xorg-server this time, the hal port needs to be rebuilt 2162 however. 2163 216420071020: 2165 The misnamed kthread_create() and friends have been renamed 2166 to kproc_create() etc. Many of the callers already 2167 used kproc_start().. 2168 I will return kthread_create() and friends in a while 2169 with implementations that actually create threads, not procs. 2170 Renaming corresponds with version 800002. 2171 217220071010: 2173 RELENG_7 branched. 2174 2175COMMON ITEMS: 2176 2177 General Notes 2178 ------------- 2179 Avoid using make -j when upgrading. While generally safe, there are 2180 sometimes problems using -j to upgrade. If your upgrade fails with 2181 -j, please try again without -j. From time to time in the past there 2182 have been problems using -j with buildworld and/or installworld. This 2183 is especially true when upgrading between "distant" versions (eg one 2184 that cross a major release boundary or several minor releases, or when 2185 several months have passed on the -current branch). 2186 2187 Sometimes, obscure build problems are the result of environment 2188 poisoning. This can happen because the make utility reads its 2189 environment when searching for values for global variables. To run 2190 your build attempts in an "environmental clean room", prefix all make 2191 commands with 'env -i '. See the env(1) manual page for more details. 2192 2193 When upgrading from one major version to another it is generally best 2194 to upgrade to the latest code in the currently installed branch first, 2195 then do an upgrade to the new branch. This is the best-tested upgrade 2196 path, and has the highest probability of being successful. Please try 2197 this approach before reporting problems with a major version upgrade. 2198 2199 When upgrading a live system, having a root shell around before 2200 installing anything can help undo problems. Not having a root shell 2201 around can lead to problems if pam has changed too much from your 2202 starting point to allow continued authentication after the upgrade. 2203 2204 ZFS notes 2205 --------- 2206 When upgrading the boot ZFS pool to a new version, always follow 2207 these two steps: 2208 2209 1.) recompile and reinstall the ZFS boot loader and boot block 2210 (this is part of "make buildworld" and "make installworld") 2211 2212 2.) update the ZFS boot block on your boot drive 2213 2214 The following example updates the ZFS boot block on the first 2215 partition (freebsd-boot) of a GPT partitioned drive ad0: 2216 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2217 2218 Non-boot pools do not need these updates. 2219 2220 To build a kernel 2221 ----------------- 2222 If you are updating from a prior version of FreeBSD (even one just 2223 a few days old), you should follow this procedure. It is the most 2224 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2225 2226 make kernel-toolchain 2227 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2228 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2229 2230 To test a kernel once 2231 --------------------- 2232 If you just want to boot a kernel once (because you are not sure 2233 if it works, or if you want to boot a known bad kernel to provide 2234 debugging information) run 2235 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2236 nextboot -k testkernel 2237 2238 To just build a kernel when you know that it won't mess you up 2239 -------------------------------------------------------------- 2240 This assumes you are already running a CURRENT system. Replace 2241 ${arch} with the architecture of your machine (e.g. "i386", 2242 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2243 2244 cd src/sys/${arch}/conf 2245 config KERNEL_NAME_HERE 2246 cd ../compile/KERNEL_NAME_HERE 2247 make depend 2248 make 2249 make install 2250 2251 If this fails, go to the "To build a kernel" section. 2252 2253 To rebuild everything and install it on the current system. 2254 ----------------------------------------------------------- 2255 # Note: sometimes if you are running current you gotta do more than 2256 # is listed here if you are upgrading from a really old current. 2257 2258 <make sure you have good level 0 dumps> 2259 make buildworld 2260 make kernel KERNCONF=YOUR_KERNEL_HERE 2261 [1] 2262 <reboot in single user> [3] 2263 mergemaster -p [5] 2264 make installworld 2265 mergemaster -i [4] 2266 make delete-old [6] 2267 <reboot> 2268 2269 To cross-install current onto a separate partition 2270 -------------------------------------------------- 2271 # In this approach we use a separate partition to hold 2272 # current's root, 'usr', and 'var' directories. A partition 2273 # holding "/", "/usr" and "/var" should be about 2GB in 2274 # size. 2275 2276 <make sure you have good level 0 dumps> 2277 <boot into -stable> 2278 make buildworld 2279 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2280 <maybe newfs current's root partition> 2281 <mount current's root partition on directory ${CURRENT_ROOT}> 2282 make installworld DESTDIR=${CURRENT_ROOT} 2283 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2284 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2285 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2286 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2287 <reboot into current> 2288 <do a "native" rebuild/install as described in the previous section> 2289 <maybe install compatibility libraries from ports/misc/compat*> 2290 <reboot> 2291 2292 2293 To upgrade in-place from stable to current 2294 ---------------------------------------------- 2295 <make sure you have good level 0 dumps> 2296 make buildworld [9] 2297 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2298 [1] 2299 <reboot in single user> [3] 2300 mergemaster -p [5] 2301 make installworld 2302 mergemaster -i [4] 2303 make delete-old [6] 2304 <reboot> 2305 2306 Make sure that you've read the UPDATING file to understand the 2307 tweaks to various things you need. At this point in the life 2308 cycle of current, things change often and you are on your own 2309 to cope. The defaults can also change, so please read ALL of 2310 the UPDATING entries. 2311 2312 Also, if you are tracking -current, you must be subscribed to 2313 freebsd-current@freebsd.org. Make sure that before you update 2314 your sources that you have read and understood all the recent 2315 messages there. If in doubt, please track -stable which has 2316 much fewer pitfalls. 2317 2318 [1] If you have third party modules, such as vmware, you 2319 should disable them at this point so they don't crash your 2320 system on reboot. 2321 2322 [3] From the bootblocks, boot -s, and then do 2323 fsck -p 2324 mount -u / 2325 mount -a 2326 cd src 2327 adjkerntz -i # if CMOS is wall time 2328 Also, when doing a major release upgrade, it is required that 2329 you boot into single user mode to do the installworld. 2330 2331 [4] Note: This step is non-optional. Failure to do this step 2332 can result in a significant reduction in the functionality of the 2333 system. Attempting to do it by hand is not recommended and those 2334 that pursue this avenue should read this file carefully, as well 2335 as the archives of freebsd-current and freebsd-hackers mailing lists 2336 for potential gotchas. The -U option is also useful to consider. 2337 See mergemaster(8) for more information. 2338 2339 [5] Usually this step is a noop. However, from time to time 2340 you may need to do this if you get unknown user in the following 2341 step. It never hurts to do it all the time. You may need to 2342 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2343 install) after the buildworld before this step if you last updated 2344 from current before 20130425 or from -stable before 20130430. 2345 2346 [6] This only deletes old files and directories. Old libraries 2347 can be deleted by "make delete-old-libs", but you have to make 2348 sure that no program is using those libraries anymore. 2349 2350 [8] In order to have a kernel that can run the 4.x binaries needed to 2351 do an installworld, you must include the COMPAT_FREEBSD4 option in 2352 your kernel. Failure to do so may leave you with a system that is 2353 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2354 required to run the 5.x binaries on more recent kernels. And so on 2355 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2356 2357 Make sure that you merge any new devices from GENERIC since the 2358 last time you updated your kernel config file. 2359 2360 [9] When checking out sources, you must include the -P flag to have 2361 cvs prune empty directories. 2362 2363 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2364 "?=" instead of the "=" assignment operator, so that buildworld can 2365 override the CPUTYPE if it needs to. 2366 2367 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2368 not on the command line, or in /etc/make.conf. buildworld will 2369 warn if it is improperly defined. 2370FORMAT: 2371 2372This file contains a list, in reverse chronological order, of major 2373breakages in tracking -current. It is not guaranteed to be a complete 2374list of such breakages, and only contains entries since October 10, 2007. 2375If you need to see UPDATING entries from before that date, you will need 2376to fetch an UPDATING file from an older FreeBSD release. 2377 2378Copyright information: 2379 2380Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2381 2382Redistribution, publication, translation and use, with or without 2383modification, in full or in part, in any form or format of this 2384document are permitted without further permission from the author. 2385 2386THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2387IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2388WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2389DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2390INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2391(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2392SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2393HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2394STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2395IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2396POSSIBILITY OF SUCH DAMAGE. 2397 2398Contact Warner Losh if you have any questions about your use of 2399this document. 2400 2401$FreeBSD: releng/10.1/UPDATING 301301 2016-06-04 05:46:52Z delphij $ 2402