UPDATING revision 303304
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 1920160725 p37 FreeBSD-SA-16:25.bspatch 20 FreeBSD-EN-16:09.freebsd-update 21 22 Fix bspatch heap overflow vulnerability. [SA-16:25] 23 24 Fix freebsd-update(8) support of FreeBSD 11.0 release 25 distribution. [EN-16:09] 26 2720160604 p36 FreeBSD-SA-16:24.ntp 28 29 Fix multiple vulnerabilities of ntp. 30 3120160531 p35 FreeBSD-SA-16:20.linux 32 FreeBSD-SA-16:21.43bsd 33 FreeBSD-SA-16:22.libarchive 34 35 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 36 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 37 Fix directory traversal in cpio(1). [SA-16:22] 38 3920160517 p34 FreeBSD-SA-16:18.atkbd 40 FreeBSD-SA-16:19.sendmsg 41 42 Fix buffer overflow in keyboard driver. [SA-16:18] 43 44 Fix incorrect argument handling in sendmsg(2). [SA-16:19] 45 4620160504 p33 FreeBSD-SA-16:17.openssl 47 FreeBSD-EN-16:08.zfs 48 49 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 50 51 Fix memory leak in ZFS. [EN-16:08] 52 5320160429 p32 FreeBSD-SA-16:16.ntp 54 55 Fix multiple vulnerabilities of ntp. 56 5720160316 p31 FreeBSD-SA-16:14.openssh-xauth 58 FreeBSD-SA-16:15.sysarch 59 FreeBSD-EN-16:04.hyperv 60 61 Fix OpenSSH xauth(1) command injection. [SA-16:14] 62 Fix incorrect argument validation in sysarch(2). [SA-16:15] 63 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04] 64 6520160303 p30 FreeBSD-SA-16:12.openssl 66 67 Fix multiple vulnerabilities of OpenSSL. 68 6920160130 p29 FreeBSD-SA-16:11.openssl 70 71 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 72 7320160127 p28 FreeBSD-SA-16:09.ntp 74 FreeBSD-SA-16:10.linux 75 76 Fix multiple vulnerabilities of ntp. [SA-16:09] 77 78 Fix Linux compatibility layer issetugid(2) system call 79 vulnerability. [SA-16:10] 80 8120160114 p27 FreeBSD-SA-16:07.openssh 82 83 Fix OpenSSH client information leak. [SA-16:07] 84 8520160114 p26 FreeBSD-EN-16:02.pf 86 FreeBSD-EN-16:03.yplib 87 FreeBSD-SA-16:01.sctp 88 FreeBSD-SA-16:02.ntp 89 FreeBSD-SA-16:03.linux 90 FreeBSD-SA-16:04.linux 91 FreeBSD-SA-16:05.tcp 92 FreeBSD-SA-16:06.bsnmpd 93 94 Fix pf(4) generating bad TCP checksums. [EN-16:02] 95 Fix infinite loop in YP/NIS client library. [EN-16:03] 96 Fix remote denial of service in SCTP. [SA-16:01] 97 Update NTP to 4.2.8p5. [SA-16:02] 98 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 99 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 100 Fix crash in TCP MD5 signatures. [SA-16:05] 101 Fix insecure default permissions for snmpd.config. [SA-16:06] 102 10320151205 p25 FreeBSD-SA-15:26.openssl 104 105 Fix multiple OpenSSL vulnerabilities. [SA-15:26] 106 10720151104 p24 FreeBSD-SA-15:25.ntp [revised] 108 FreeBSD-EN-15:19.kqueue 109 FreeBSD-EN-15:20.vm 110 111 Fix regression in ntpd(8) lacking support for RAWDCF reference 112 clock in 10.1-RELEASE-p23. [SA-15:25.ntp] 113 114 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 115 116 Fix applications exiting due to segmentation violation on a correct 117 memory address. [EN-15:20] 118 11920151026: p23 FreeBSD-SA-15:25.ntp 120 121 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 122 123 The configuration file syntax has been changed, thus mergemaster 124 run is recommended. Now the "kod" parameter requires "limited" 125 parameter. If the ntp.conf is not updated, the ntpd will run 126 successfully, but with KoD disabled. 127 12820151002: p22 FreeBSD-SA-15:24.rpcbind [revised] 129 Revised patch to address a regression that prevents NIS from working. 130 13120150929: p21 FreeBSD-SA-15:24.rpcbind 132 133 Fix rpcbind(8) remote denial of service. [SA-15:24] 134 13520150916: p20 FreeBSD-EN-15:18.pkg 136 137 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 138 13920150825: p19 FreeBSD-SA-15:21.amd64 140 FreeBSD-SA-15:22.openssh 141 FreeBSD-EN-15:14.ixgbe 142 FreeBSD-EN-15:15.pkg 143 144 Fix local privilege escalation in IRET handler. [SA-15:21] 145 146 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 147 148 Disabled ixgbe(4) flow-director support. [EN-15:14] 149 150 Fix insufficient check of unsupported pkg(7) signature methods. 151 [EN-15:15] 152 15320150818: p18 FreeBSD-SA-15:20.expat 154 155 Fix multiple integer overflows in expat (libbsdxml) XML parser. 156 [SA-15:20] 157 15820150805: p17 FreeBSD-SA-15:18.bsdpatch 159 FreeBSD-SA-15:19.routed 160 161 Fix patch(1) shell injection vulnerability via ed(1). 162 [SA-15:18] 163 164 Fix routed remote denial of service vulnerability. [SA-15:19] 165 16620150728: p16 FreeBSD-SA-15:14.bsdpatch 167 FreeBSD-SA-15:15.tcp 168 FreeBSD-SA-15:16.openssh 169 170 Fix patch(1) shell injection vulnerability. [SA-15:14] 171 172 Fix resource exhaustion in TCP reassembly. [SA-15:15] 173 174 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 175 17620150721: p15 FreeBSD-SA-15:13.tcp 177 178 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 179 [SA-15:13] 180 18120150630: p14 FreeBSD-EN-15:08.sendmail [revised] 182 FreeBSD-EN-15:09.xlocale 183 FreeBSD-EN-15:10.iconv 184 185 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 186 187 Fix inconsistency between locale and rune locale states. 188 [EN-15:09] 189 190 Improved iconv(3) UTF-7 support. [EN-15:10] 191 19220150618: p13 FreeBSD-EN-15:08.sendmail 193 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 194 19520150612: p12 FreeBSD-SA-15:10.openssl 196 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 197 19820150609: p11 FreeBSD-EN-15:06.file 199 FreeBSD-EN-15:07.zfs 200 201 Updated base system file(1) to 5.22 to address multiple denial 202 of service issues. [EN-15:06] 203 204 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 205 [EN-15:07] 206 20720150513: p10 FreeBSD-EN-15:04.freebsd-update 208 FreeBSD-EN-15:05.ufs 209 210 Fix bug with freebsd-update(8) that does not ensure the previous 211 upgrade was completed. [EN-15:04] 212 213 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 214 21520150407: p9 FreeBSD-SA-15:04.igmp [revised] 216 FreeBSD-SA-15:07.ntp 217 FreeBSD-SA-15:08.bsdinstall 218 FreeBSD-SA-15:09.ipv6 219 220 Improved patch for SA-15:04.igmp. 221 222 Fix multiple vulnerabilities of ntp. [SA-15:07] 223 224 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 225 226 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 227 22820150320: p8 229 Fix patch for SA-15:06.openssl. 230 23120150319: p7 FreeBSD-SA-15:06.openssl 232 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 233 23420150225: p6 FreeBSD-SA-15:04.igmp 235 FreeBSD-EN-15:01.vt 236 FreeBSD-EN-15:02.openssl 237 FreeBSD-EN-15:03.freebsd-update 238 239 Fix integer overflow in IGMP protocol. [SA-15:04] 240 241 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 242 243 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 244 245 Fix freebsd-update libraries update ordering issue. [EN-15:03] 246 24720150127: p5 FreeBSD-SA-15:02.kmem 248 FreeBSD-SA-15:03.sctp 249 250 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 251 vulnerability. [SA-15:02] 252 253 Fix SCTP stream reset vulnerability. [SA-15:03] 254 25520150114: p4 FreeBSD-SA-15:01.openssl 256 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 257 25820141223: p3 FreeBSD-SA-14:31.ntp 259 FreeBSD-EN-14:13.freebsd-update 260 261 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 262 Fix directory deletion issue in freebsd-update. [EN-14:13] 263 26420141217: p2 FreeBSD-SA-14:30.unbound 265 Fix unbound remote denial of service vulnerability. 266 26720141210: p1 FreeBSD-SA-14:27.stdio 268 FreeBSD-SA-14:28.file 269 270 Fix buffer overflow in stdio. [SA-14:27] 271 272 Fix multiple vulnerabilities in file(1) and libmagic(3). 273 [SA-14:28] 274 27520140904: 276 The ofwfb driver, used to provide a graphics console on PowerPC when 277 using vt(4), no longer allows mmap() of all of physical memory. This 278 will prevent Xorg on PowerPC with some ATI graphics cards from 279 initializing properly unless x11-servers/xorg-server is updated to 280 1.12.4_8 or newer. 281 28220140831: 283 The libatf-c and libatf-c++ major versions were downgraded to 0 and 284 1 respectively to match the upstream numbers. They were out of 285 sync because, when they were originally added to FreeBSD, the 286 upstream versions were not respected. These libraries are private 287 and not yet built by default, so renumbering them should be a 288 non-issue. However, unclean source trees will yield broken test 289 programs once the operator executes "make delete-old-libs" after a 290 "make installworld". 291 292 Additionally, the atf-sh binary was made private by moving it into 293 /usr/libexec/. Already-built shell test programs will keep the 294 path to the old binary so they will break after "make delete-old" 295 is run. 296 297 If you are using WITH_TESTS=yes (not the default), wipe the object 298 tree and rebuild from scratch to prevent spurious test failures. 299 This is only needed once: the misnumbered libraries and misplaced 300 binaries have been added to OptionalObsoleteFiles.inc so they will 301 be removed during a clean upgrade. 302 30320140814: 304 The ixgbe tunables now match their sysctl counterparts, for example: 305 hw.ixgbe.enable_aim => hw.ix.enable_aim 306 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 307 30820140801: 309 The NFSv4.1 server committed by r269398 changes the internal 310 function call interfaces used between the NFS and krpc modules. 311 As such, __FreeBSD_version was bumped. 312 31320140729: 314 The default unbound configuration has been modified to address 315 issues with reverse lookups on networks that use private 316 address ranges. If you use the local_unbound service, run 317 "service local_unbound setup" as root to regenerate your 318 configuration, then "service local_unbound reload" to load the 319 new configuration. 320 32120140717: 322 It is no longer necessary to include the dwarf version in your DEBUG 323 options in your kernel config file. The bug that required it to be 324 placed in the config file has bene fixed. DEBUG should now just 325 contain -g. The build system will automatically update things 326 to do the right thing. 327 32820140715: 329 Several ABI breaking changes were merged to CTL and new iSCSI code. 330 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 331 iscsictl need to be rebuilt to work with a new kernel. 332 33320140708: 334 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 335 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 336 which differs from the behaviour controlled by this knob.) 337 33820140608: 339 On i386 and amd64 systems, the onifconsole flag is now set by default 340 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 341 as a login TTY if it is set in the bootloader as an active kernel 342 console. No changes in behavior should result otherwise. To revert to 343 the previous behavior, set ttyu0 to "off" in /etc/ttys. 344 34520140512: 346 Clang and llvm have been upgraded to 3.4.1 release. 347 34820140321: 349 Clang and llvm have been upgraded to 3.4 release. 350 35120140306: 352 If a Makefile in a tests/ directory was auto-generating a Kyuafile 353 instead of providing an explicit one, this would prevent such 354 Makefile from providing its own Kyuafile in the future during 355 NO_CLEAN builds. This has been fixed in the Makefiles but manual 356 intervention is needed to clean an objdir if you use NO_CLEAN: 357 # find /usr/obj -name Kyuafile | xargs rm -f 358 35920140303: 360 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 361 capability mode support. Please note that enabling the feature in 362 kernel is still highly recommended. 363 36420140227: 365 OpenSSH is now built with sandbox support, and will use sandbox as 366 the default privilege separation method. This requires Capsicum 367 capability mode support in kernel. 368 36920140216: 370 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 371 been deprecated and will not be part of FreeBSD 11.0 and later 372 releases. If you use this driver, please consider switching to 373 the nfe(4) driver instead. 374 37520140120: 376 10.0-RELEASE. 377 37820131216: 379 The behavior of gss_pseudo_random() for the krb5 mechanism 380 has changed, for applications requesting a longer random string 381 than produced by the underlying enctype's pseudo-random() function. 382 In particular, the random string produced from a session key of 383 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 384 be different at the 17th octet and later, after this change. 385 The counter used in the PRF+ construction is now encoded as a 386 big-endian integer in accordance with RFC 4402. 387 __FreeBSD_version is bumped to 1000701. 388 38920131108: 390 The WITHOUT_ATF build knob has been removed and its functionality 391 has been subsumed into the more generic WITHOUT_TESTS. If you were 392 using the former to disable the build of the ATF libraries, you 393 should change your settings to use the latter. 394 39520131031: 396 The default version of mtree is nmtree which is obtained from 397 NetBSD. The output is generally the same, but may vary 398 slightly. If you found you need identical output adding 399 "-F freebsd9" to the command line should do the trick. For the 400 time being, the old mtree is available as fmtree. 401 40220131014: 403 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 404 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 405 1.1.4_8 and verify bsdyml not linked in, before running "make 406 delete-old-libs": 407 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 408 or 409 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 410 41120131010: 412 The rc.d/jail script has been updated to support jail(8) 413 configuration file. The "jail_<jname>_*" rc.conf(5) variables 414 for per-jail configuration are automatically converted to 415 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 416 This is transparently backward compatible. See below about some 417 incompatibilities and rc.conf(5) manual page for more details. 418 419 These variables are now deprecated in favor of jail(8) configuration 420 file. One can use "rc.d/jail config <jname>" command to generate 421 a jail(8) configuration file in /var/run/jail.<jname>.conf without 422 running the jail(8) utility. The default pathname of the 423 configuration file is /etc/jail.conf and can be specified by 424 using $jail_conf or $jail_<jname>_conf variables. 425 426 Please note that jail_devfs_ruleset accepts an integer at 427 this moment. Please consider to rewrite the ruleset name 428 with an integer. 429 43020130930: 431 BIND has been removed from the base system. If all you need 432 is a local resolver, simply enable and start the local_unbound 433 service instead. Otherwise, several versions of BIND are 434 available in the ports tree. The dns/bind99 port is one example. 435 436 With this change, nslookup(1) and dig(1) are no longer in the base 437 system. Users should instead use host(1) and drill(1) which are 438 in the base system. Alternatively, nslookup and dig can 439 be obtained by installing the dns/bind-tools port. 440 44120130916: 442 With the addition of unbound(8), a new unbound user is now 443 required during installworld. "mergemaster -p" can be used to 444 add the user prior to installworld, as documented in the handbook. 445 44620130911: 447 OpenSSH is now built with DNSSEC support, and will by default 448 silently trust signed SSHFP records. This can be controlled with 449 the VerifyHostKeyDNS client configuration setting. DNSSEC support 450 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 451 45220130906: 453 The GNU Compiler Collection and C++ standard library (libstdc++) 454 are no longer built by default on platforms where clang is the system 455 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 456 options in src.conf. 457 45820130905: 459 The PROCDESC kernel option is now part of the GENERIC kernel 460 configuration and is required for the rwhod(8) to work. 461 If you are using custom kernel configuration, you should include 462 'options PROCDESC'. 463 46420130905: 465 The API and ABI related to the Capsicum framework was modified 466 in backward incompatible way. The userland libraries and programs 467 have to be recompiled to work with the new kernel. This includes the 468 following libraries and programs, but the whole buildworld is 469 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 470 kdump, procstat, rwho, rwhod, uniq. 471 47220130903: 473 AES-NI intrinsic support has been added to gcc. The AES-NI module 474 has been updated to use this support. A new gcc is required to build 475 the aesni module on both i386 and amd64. 476 47720130821: 478 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 479 Thus "device padlock_rng" and "device rdrand_rng" should be 480 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 481 48220130813: 483 WITH_ICONV has been split into two feature sets. WITH_ICONV now 484 enables just the iconv* functionality and is now on by default. 485 WITH_LIBICONV_COMPAT enables the libiconv api and link time 486 compatability. Set WITHOUT_ICONV to build the old way. 487 If you have been using WITH_ICONV before, you will very likely 488 need to turn on WITH_LIBICONV_COMPAT. 489 49020130806: 491 INVARIANTS option now enables DEBUG for code with OpenSolaris and 492 Illumos origin, including ZFS. If you have INVARIANTS in your 493 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 494 explicitly. 495 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 496 locks if WITNESS option was set. Because that generated a lot of 497 witness(9) reports and all of them were believed to be false 498 positives, this is no longer done. New option OPENSOLARIS_WITNESS 499 can be used to achieve the previous behavior. 500 50120130806: 502 Timer values in IPv6 data structures now use time_uptime instead 503 of time_second. Although this is not a user-visible functional 504 change, userland utilities which directly use them---ndp(8), 505 rtadvd(8), and rtsold(8) in the base system---need to be updated 506 to r253970 or later. 507 50820130802: 509 find -delete can now delete the pathnames given as arguments, 510 instead of only files found below them or if the pathname did 511 not contain any slashes. Formerly, the following error message 512 would result: 513 514 find: -delete: <path>: relative path potentially not safe 515 516 Deleting the pathnames given as arguments can be prevented 517 without error messages using -mindepth 1 or by changing 518 directory and passing "." as argument to find. This works in the 519 old as well as the new version of find. 520 52120130726: 522 Behavior of devfs rules path matching has been changed. 523 Pattern is now always matched against fully qualified devfs 524 path and slash characters must be explicitly matched by 525 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 526 subdirectories must be reviewed. 527 52820130716: 529 The default ARM ABI has changed to the ARM EABI. The old ABI is 530 incompatible with the ARM EABI and all programs and modules will 531 need to be rebuilt to work with a new kernel. 532 533 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 534 535 NOTE: Support for the old ABI will be removed in the future and 536 users are advised to upgrade. 537 53820130709: 539 pkg_install has been disconnected from the build if you really need it 540 you should add WITH_PKGTOOLS in your src.conf(5). 541 54220130709: 543 Most of network statistics structures were changed to be able 544 keep 64-bits counters. Thus all tools, that work with networking 545 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 546 54720130629: 548 Fix targets that run multiple make's to use && rather than ; 549 so that subsequent steps depend on success of previous. 550 551 NOTE: if building 'universe' with -j* on stable/8 or stable/9 552 it would be better to start the build using bmake, to avoid 553 overloading the machine. 554 55520130618: 556 Fix a bug that allowed a tracing process (e.g. gdb) to write 557 to a memory-mapped file in the traced process's address space 558 even if neither the traced process nor the tracing process had 559 write access to that file. 560 56120130615: 562 CVS has been removed from the base system. An exact copy 563 of the code is available from the devel/cvs port. 564 56520130613: 566 Some people report the following error after the switch to bmake: 567 568 make: illegal option -- J 569 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 570 ... 571 *** [buildworld] Error code 2 572 573 this likely due to an old instance of make in 574 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 575 which src/Makefile will use that blindly, if it exists, so if 576 you see the above error: 577 578 rm -rf `make -V MAKEPATH` 579 580 should resolve it. 581 58220130516: 583 Use bmake by default. 584 Whereas before one could choose to build with bmake via 585 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 586 make. The goal is to remove these knobs for 10-RELEASE. 587 588 It is worth noting that bmake (like gmake) treats the command 589 line as the unit of failure, rather than statements within the 590 command line. Thus '(cd some/where && dosomething)' is safer 591 than 'cd some/where; dosomething'. The '()' allows consistent 592 behavior in parallel build. 593 59420130429: 595 Fix a bug that allows NFS clients to issue READDIR on files. 596 59720130426: 598 The WITHOUT_IDEA option has been removed because 599 the IDEA patent expired. 600 60120130426: 602 The sysctl which controls TRIM support under ZFS has been renamed 603 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 604 enabled by default. 605 60620130425: 607 The mergemaster command now uses the default MAKEOBJDIRPREFIX 608 rather than creating it's own in the temporary directory in 609 order allow access to bootstrapped versions of tools such as 610 install and mtree. When upgrading from version of FreeBSD where 611 the install command does not support -l, you will need to 612 install a new mergemaster command if mergemaster -p is required. 613 This can be accomplished with the command (cd src/usr.sbin/mergemaster 614 && make install). 615 61620130404: 617 Legacy ATA stack, disabled and replaced by new CAM-based one since 618 FreeBSD 9.0, completely removed from the sources. Kernel modules 619 atadisk and atapi*, user-level tools atacontrol and burncd are 620 removed. Kernel option `options ATA_CAM` is now permanently enabled 621 and removed. 622 62320130319: 624 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 625 and socketpair(2). Software, in particular Kerberos, may 626 automatically detect and use these during building. The resulting 627 binaries will not work on older kernels. 628 62920130308: 630 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 631 information, see the respective 20130304 entry). 632 63320130304: 634 Recent commits to callout(9) changed the size of struct callout, 635 so the KBI is probably heavily disturbed. Also, some functions 636 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 637 by macros. Every kernel module using it won't load, so rebuild 638 is requested. 639 640 The ctl device has been re-enabled in GENERIC for i386 and amd64, 641 but does not initialize by default (because of the new CTL_DISABLE 642 option) to save memory. To re-enable it, remove the CTL_DISABLE 643 option from the kernel config file or set kern.cam.ctl.disable=0 644 in /boot/loader.conf. 645 64620130301: 647 The ctl device has been disabled in GENERIC for i386 and amd64. 648 This was done due to the extra memory being allocated at system 649 initialisation time by the ctl driver which was only used if 650 a CAM target device was created. This makes a FreeBSD system 651 unusable on 128MB or less of RAM. 652 65320130208: 654 A new compression method (lz4) has been merged to -HEAD. Please 655 refer to zpool-features(7) for more information. 656 657 Please refer to the "ZFS notes" section of this file for information 658 on upgrading boot ZFS pools. 659 66020130129: 661 A BSD-licensed patch(1) variant has been added and is installed 662 as bsdpatch, being the GNU version the default patch. 663 To inverse the logic and use the BSD-licensed one as default, 664 while having the GNU version installed as gnupatch, rebuild 665 and install world with the WITH_BSD_PATCH knob set. 666 66720130121: 668 Due to the use of the new -l option to install(1) during build 669 and install, you must take care not to directly set the INSTALL 670 make variable in your /etc/make.conf, /etc/src.conf, or on the 671 command line. If you wish to use the -C flag for all installs 672 you may be able to add INSTALL+=-C to /etc/make.conf or 673 /etc/src.conf. 674 67520130118: 676 The install(1) option -M has changed meaning and now takes an 677 argument that is a file or path to append logs to. In the 678 unlikely event that -M was the last option on the command line 679 and the command line contained at least two files and a target 680 directory the first file will have logs appended to it. The -M 681 option served little practical purpose in the last decade so its 682 use is expected to be extremely rare. 683 68420121223: 685 After switching to Clang as the default compiler some users of ZFS 686 on i386 systems started to experience stack overflow kernel panics. 687 Please consider using 'options KSTACK_PAGES=4' in such configurations. 688 68920121222: 690 GEOM_LABEL now mangles label names read from file system metadata. 691 Mangling affect labels containing spaces, non-printable characters, 692 '%' or '"'. Device names in /etc/fstab and other places may need to 693 be updated. 694 69520121217: 696 By default, only the 10 most recent kernel dumps will be saved. To 697 restore the previous behaviour (no limit on the number of kernel dumps 698 stored in the dump directory) add the following line to /etc/rc.conf: 699 700 savecore_flags="" 701 70220121201: 703 With the addition of auditdistd(8), a new auditdistd user is now 704 required during installworld. "mergemaster -p" can be used to 705 add the user prior to installworld, as documented in the handbook. 706 70720121117: 708 The sin6_scope_id member variable in struct sockaddr_in6 is now 709 filled by the kernel before passing the structure to the userland via 710 sysctl or routing socket. This means the KAME-specific embedded scope 711 id in sin6_addr.s6_addr[2] is always cleared in userland application. 712 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 713 __FreeBSD_version is bumped to 1000025. 714 71520121105: 716 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 717 This means that the world and kernel will be compiled with clang 718 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 719 and /usr/bin/cpp. To disable this behavior and revert to building 720 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 721 of current may need to bootstrap WITHOUT_CLANG first if the clang 722 build fails (its compatibility window doesn't extend to the 9 stable 723 branch point). 724 72520121102: 726 The IPFIREWALL_FORWARD kernel option has been removed. Its 727 functionality now turned on by default. 728 72920121023: 730 The ZERO_COPY_SOCKET kernel option has been removed and 731 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 732 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 733 mechanism which is not safe and may result in kernel crashes. 734 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 735 driver supports disposeable external page sized mbuf storage. 736 Proper replacements for both zero-copy mechanisms are under 737 consideration and will eventually lead to complete removal 738 of the two kernel options. 739 74020121023: 741 The IPv4 network stack has been converted to network byte 742 order. The following modules need to be recompiled together 743 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 744 pf(4), ipfw(4), ng_ipfw(4), stf(4). 745 74620121022: 747 Support for non-MPSAFE filesystems was removed from VFS. The 748 VFS_VERSION was bumped, all filesystem modules shall be 749 recompiled. 750 75120121018: 752 All the non-MPSAFE filesystems have been disconnected from 753 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 754 portalfs, smbfs, xfs. 755 75620121016: 757 The interface cloning API and ABI has changed. The following 758 modules need to be recompiled together with kernel: 759 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 760 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 761 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 762 76320121015: 764 The sdhci driver was split in two parts: sdhci (generic SD Host 765 Controller logic) and sdhci_pci (actual hardware driver). 766 No kernel config modifications are required, but if you 767 load sdhc as a module you must switch to sdhci_pci instead. 768 76920121014: 770 Import the FUSE kernel and userland support into base system. 771 77220121013: 773 The GNU sort(1) program has been removed since the BSD-licensed 774 sort(1) has been the default for quite some time and no serious 775 problems have been reported. The corresponding WITH_GNU_SORT 776 knob has also gone. 777 77820121006: 779 The pfil(9) API/ABI for AF_INET family has been changed. Packet 780 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 781 with new kernel. 782 78320121001: 784 The net80211(4) ABI has been changed to allow for improved driver 785 PS-POLL and power-save support. All wireless drivers need to be 786 recompiled to work with the new kernel. 787 78820120913: 789 The random(4) support for the VIA hardware random number 790 generator (`PADLOCK') is no longer enabled unconditionally. 791 Add the padlock_rng device in the custom kernel config if 792 needed. The GENERIC kernels on i386 and amd64 do include the 793 device, so the change only affects the custom kernel 794 configurations. 795 79620120908: 797 The pf(4) packet filter ABI has been changed. pfctl(8) and 798 snmp_pf module need to be recompiled to work with new kernel. 799 80020120828: 801 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 802 to -HEAD. Pools that have empty_bpobj in active state can not be 803 imported read-write with ZFS implementations that do not support 804 this feature. For more information read the zpool-features(5) 805 manual page. 806 80720120727: 808 The sparc64 ZFS loader has been changed to no longer try to auto- 809 detect ZFS providers based on diskN aliases but now requires these 810 to be explicitly listed in the OFW boot-device environment variable. 811 81220120712: 813 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 814 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 815 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 816 81720120712: 818 The following sysctls and tunables have been renamed for consistency 819 with other variables: 820 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 821 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 822 82320120628: 824 The sort utility has been replaced with BSD sort. For now, GNU sort 825 is also available as "gnusort" or the default can be set back to 826 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 827 installed as "bsdsort". 828 82920120611: 830 A new version of ZFS (pool version 5000) has been merged to -HEAD. 831 Starting with this version the old system of ZFS pool versioning 832 is superseded by "feature flags". This concept enables forward 833 compatibility against certain future changes in functionality of ZFS 834 pools. The first read-only compatible "feature flag" for ZFS pools 835 is named "com.delphix:async_destroy". For more information 836 read the new zpool-features(5) manual page. 837 Please refer to the "ZFS notes" section of this file for information 838 on upgrading boot ZFS pools. 839 84020120417: 841 The malloc(3) implementation embedded in libc now uses sources imported 842 as contrib/jemalloc. The most disruptive API change is to 843 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 844 delete it prior to installworld, and optionally re-create it using the 845 new format after rebooting. See malloc.conf(5) for details 846 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 847 NAMESPACE section). 848 84920120328: 850 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 851 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 852 now spelled mips. This is to aid compatibility with third-party 853 software that expects this naming scheme in uname(3). Little-endian 854 settings are unchanged. If you are updating a big-endian mips64 machine 855 from before this change, you may need to set MACHINE_ARCH=mips64 in 856 your environment before the new build system will recognize your machine. 857 85820120306: 859 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 860 platforms. 861 86220120229: 863 Now unix domain sockets behave "as expected" on nullfs(5). Previously 864 nullfs(5) did not pass through all behaviours to the underlying layer, 865 as a result if we bound to a socket on the lower layer we could connect 866 only to the lower path; if we bound to the upper layer we could connect 867 only to the upper path. The new behavior is one can connect to both the 868 lower and the upper paths regardless what layer path one binds to. 869 87020120211: 871 The getifaddrs upgrade path broken with 20111215 has been restored. 872 If you have upgraded in between 20111215 and 20120209 you need to 873 recompile libc again with your kernel. You still need to recompile 874 world to be able to configure CARP but this restriction already 875 comes from 20111215. 876 87720120114: 878 The set_rcvar() function has been removed from /etc/rc.subr. All 879 base and ports rc.d scripts have been updated, so if you have a 880 port installed with a script in /usr/local/etc/rc.d you can either 881 hand-edit the rcvar= line, or reinstall the port. 882 883 An easy way to handle the mass-update of /etc/rc.d: 884 rm /etc/rc.d/* && mergemaster -i 885 88620120109: 887 panic(9) now stops other CPUs in the SMP systems, disables interrupts 888 on the current CPU and prevents other threads from running. 889 This behavior can be reverted using the kern.stop_scheduler_on_panic 890 tunable/sysctl. 891 The new behavior can be incompatible with kern.sync_on_panic. 892 89320111215: 894 The carp(4) facility has been changed significantly. Configuration 895 of the CARP protocol via ifconfig(8) has changed, as well as format 896 of CARP events submitted to devd(8) has changed. See manual pages 897 for more information. The arpbalance feature of carp(4) is currently 898 not supported anymore. 899 900 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 901 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 902 need to be recompiled. 903 90420111122: 905 The acpi_wmi(4) status device /dev/wmistat has been renamed to 906 /dev/wmistat0. 907 90820111108: 909 The option VFS_ALLOW_NONMPSAFE option has been added in order to 910 explicitely support non-MPSAFE filesystems. 911 It is on by default for all supported platform at this present 912 time. 913 91420111101: 915 The broken amd(4) driver has been replaced with esp(4) in the amd64, 916 i386 and pc98 GENERIC kernel configuration files. 917 91820110930: 919 sysinstall has been removed 920 92120110923: 922 The stable/9 branch created in subversion. This corresponds to the 923 RELENG_9 branch in CVS. 924 92520110913: 926 This commit modifies vfs_register() so that it uses a hash 927 calculation to set vfc_typenum, which is enabled by default. 928 The first time a system is booted after this change, the 929 vfc_typenum values will change for all file systems. The 930 main effect of this is a change to the NFS server file handles 931 for file systems that use vfc_typenum in their fsid, such as ZFS. 932 It will, however, prevent vfc_typenum from changing when file 933 systems are loaded in a different order for subsequent reboots. 934 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 935 until you are ready to remount all NFS clients after a reboot. 936 93720110828: 938 Bump the shared library version numbers for libraries that 939 do not use symbol versioning, have changed the ABI compared 940 to stable/8 and which shared library version was not bumped. 941 Done as part of 9.0-RELEASE cycle. 942 94320110815: 944 During the merge of Capsicum features, the fget(9) KPI was modified. 945 This may require the rebuilding of out-of-tree device drivers -- 946 issues have been reported specifically with the nVidia device driver. 947 __FreeBSD_version is bumped to 900041. 948 949 Also, there is a period between 20110811 and 20110814 where the 950 special devices /dev/{stdin,stdout,stderr} did not work correctly. 951 Building world from a kernel during that window may not work. 952 95320110628: 954 The packet filter (pf) code has been updated to OpenBSD 4.5. 955 You need to update userland tools to be in sync with kernel. 956 This update breaks backward compatibility with earlier pfsync(4) 957 versions. Care must be taken when updating redundant firewall setups. 958 95920110608: 960 The following sysctls and tunables are retired on x86 platforms: 961 machdep.hlt_cpus 962 machdep.hlt_logical_cpus 963 The following sysctl is retired: 964 machdep.hyperthreading_allowed 965 The sysctls were supposed to provide a way to dynamically offline and 966 online selected CPUs on x86 platforms, but the implementation has not 967 been reliable especially with SCHED_ULE scheduler. 968 machdep.hyperthreading_allowed tunable is still available to ignore 969 hyperthreading CPUs at OS level. 970 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 971 where X is an APIC ID of a CPU. Be advised, though, that disabling 972 CPUs in non-uniform fashion will result in non-uniform topology and 973 may lead to sub-optimal system performance with SCHED_ULE, which is 974 a default scheduler. 975 97620110607: 977 cpumask_t type is retired and cpuset_t is used in order to describe 978 a mask of CPUs. 979 98020110531: 981 Changes to ifconfig(8) for dynamic address family detection mandate 982 that you are running a kernel of 20110525 or later. Make sure to 983 follow the update procedure to boot a new kernel before installing 984 world. 985 98620110513: 987 Support for sun4v architecture is officially dropped 988 98920110503: 990 Several KPI breaking changes have been committed to the mii(4) layer, 991 the PHY drivers and consequently some Ethernet drivers using mii(4). 992 This means that miibus.ko and the modules of the affected Ethernet 993 drivers need to be recompiled. 994 995 Note to kernel developers: Given that the OUI bit reversion problem 996 was fixed as part of these changes all mii(4) commits related to OUIs, 997 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 998 handling, no longer can be merged verbatim to stable/8 and previous 999 branches. 1000 100120110430: 1002 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 1003 into their kernel configurations along with 'device pci'. 1004 100520110427: 1006 The default NFS client is now the new NFS client, so fstype "newnfs" 1007 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 1008 Although mounts via fstype "nfs" will usually work without userland 1009 changes, it is recommended that the mount(8) and mount_nfs(8) 1010 commands be rebuilt from sources and that a link to mount_nfs called 1011 mount_oldnfs be created. The new client is compiled into the 1012 kernel with "options NFSCL" and this is needed for diskless root 1013 file systems. The GENERIC kernel configs have been changed to use 1014 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 1015 To use the regular/old client, you can "mount -t oldnfs ...". For 1016 a diskless root file system, you must also include a line like: 1017 1018 vfs.root.mountfrom="oldnfs:" 1019 1020 in the boot/loader.conf on the root fs on the NFS server to make 1021 a diskless root fs use the old client. 1022 102320110424: 1024 The GENERIC kernels for all architectures now default to the new 1025 CAM-based ATA stack. It means that all legacy ATA drivers were 1026 removed and replaced by respective CAM drivers. If you are using 1027 ATA device names in /etc/fstab or other places, make sure to update 1028 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 1029 where 'Y's are the sequential numbers starting from zero for each type 1030 in order of detection, unless configured otherwise with tunables, 1031 see cam(4)). There will be symbolic links created in /dev/ to map 1032 old adX devices to the respective adaY. They should provide basic 1033 compatibility for file systems mounting in most cases, but they do 1034 not support old user-level APIs and do not have respective providers 1035 in GEOM. Consider using updated management tools with new device names. 1036 1037 It is possible to load devices ahci, ata, siis and mvs as modules, 1038 but option ATA_CAM should remain in kernel configuration to make ata 1039 module work as CAM driver supporting legacy ATA controllers. Device ata 1040 still can be used in modular fashion (atacore + ...). Modules atadisk 1041 and atapi* are not used and won't affect operation in ATA_CAM mode. 1042 Note that to use CAM-based ATA kernel should include CAM devices 1043 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1044 them are parts of the cam module. 1045 1046 ataraid(4) functionality is now supported by the RAID GEOM class. 1047 To use it you can load geom_raid kernel module and use graid(8) tool 1048 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1049 1050 No kernel config options or code have been removed, so if a problem 1051 arises, please report it and optionally revert to the old ATA stack. 1052 In order to do it you can remove from the kernel config: 1053 options ATA_CAM 1054 device ahci 1055 device mvs 1056 device siis 1057 , and instead add back: 1058 device atadisk # ATA disk drives 1059 device ataraid # ATA RAID drives 1060 device atapicd # ATAPI CDROM drives 1061 device atapifd # ATAPI floppy drives 1062 device atapist # ATAPI tape drives 1063 106420110423: 1065 The default NFS server has been changed to the new server, which 1066 was referred to as the experimental server. If you need to switch 1067 back to the old NFS server, you must now put the "-o" option on 1068 both the mountd and nfsd commands. This can be done using the 1069 mountd_flags and nfs_server_flags rc.conf variables until an 1070 update to the rc scripts is committed, which is coming soon. 1071 107220110418: 1073 The GNU Objective-C runtime library (libobjc), and other Objective-C 1074 related components have been removed from the base system. If you 1075 require an Objective-C library, please use one of the available ports. 1076 107720110331: 1078 ath(4) has been split into bus- and device- modules. if_ath contains 1079 the HAL, the TX rate control and the network device code. if_ath_pci 1080 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1081 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1082 in order to use ath on everything else. 1083 1084 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1085 need to load if_ath and if_ath_pci for ath(4) operation. 1086 108720110314: 1088 As part of the replacement of sysinstall, the process of building 1089 release media has changed significantly. For details, please re-read 1090 release(7), which has been updated to reflect the new build process. 1091 109220110218: 1093 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1094 is the last available version under GPLv2. It brings a number of new 1095 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1096 4.1 and SSE 4.2), better support for powerpc64, a number of new 1097 directives, and lots of other small improvements. See the ChangeLog 1098 file in contrib/binutils for the full details. 1099 110020110218: 1101 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1102 compliant, and will now use half of hash for authentication. 1103 This will break interoperability with all stacks (including all 1104 actual FreeBSD versions) who implement 1105 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1106 authentication). 1107 The only workaround with such peers is to use another HMAC 1108 algorithm for IPsec ("phase 2") authentication. 1109 111020110207: 1111 Remove the uio_yield prototype and symbol. This function has 1112 been misnamed since it was introduced and should not be 1113 globally exposed with this name. The equivalent functionality 1114 is now available using kern_yield(curthread->td_user_pri). 1115 The function remains undocumented. 1116 111720110112: 1118 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1119 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1120 for scalar sysctls is defined but disabled. Code that needs 1121 UQUAD to pass the type checking that must compile on older 1122 systems where the define is not present can check against 1123 __FreeBSD_version >= 900030. 1124 1125 The system dialog(1) has been replaced with a new version previously 1126 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1127 with the previous version, but the libdialog associated with it has 1128 a largely incompatible API. As such, the original version of libdialog 1129 will be kept temporarily as libodialog, until its base system consumers 1130 are replaced or updated. Bump __FreeBSD_version to 900030. 1131 113220110103: 1133 If you are trying to run make universe on a -stable system, and you get 1134 the following warning: 1135 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1136 unknown. config(8) likely too old." 1137 or something similar to it, then you must upgrade your -stable system 1138 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1139 stable/8) or build the config from the latest stable/8 branch and 1140 install it on your system. 1141 1142 Prior to this date, building a current universe on 8-stable system from 1143 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1144 error in the first kernel build phase. A new config on those old 1145 systems will fix that problem for older versions of -current. 1146 114720101228: 1148 The TCP stack has been modified to allow Khelp modules to interact with 1149 it via helper hook points and store per-connection data in the TCP 1150 control block. Bump __FreeBSD_version to 900029. User space tools that 1151 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1152 be recompiled. 1153 115420101114: 1155 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1156 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1157 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1158 to take advantage of it instead of using custom implementations. This 1159 means that these drivers now no longer unconditionally advertise 1160 support for flow control but only do so if flow control is a selected 1161 media option. This was implemented in the generic support that way in 1162 order to allow flow control to be switched on and off via ifconfig(8) 1163 with the PHY specific default to typically off in order to protect 1164 from unwanted effects. Consequently, if you used flow control with 1165 one of the above mentioned drivers you now need to explicitly enable 1166 it, for example via: 1167 ifconfig bge0 media auto mediaopt flowcontrol 1168 1169 Along with the above mentioned changes generic support for setting 1170 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1171 e1000phy(4) as well as ip1000phy(4) have been converted to take 1172 advantage of it. This means that these drivers now no longer take the 1173 link0 parameter for selecting master mode but the master media option 1174 has to be used instead, for example like in the following: 1175 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1176 1177 Selection of master mode now is also available with all other PHY 1178 drivers supporting 1000baseT. 1179 118020101111: 1181 The TCP stack has received a significant update to add support for 1182 modularised congestion control and generally improve the clarity of 1183 congestion control decisions. Bump __FreeBSD_version to 900025. User 1184 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1185 sockstat) need to be recompiled. 1186 118720101002: 1188 The man(1) utility has been replaced by a new version that no longer 1189 uses /etc/manpath.config. Please consult man.conf(5) for how to 1190 migrate local entries to the new format. 1191 119220100928: 1193 The copyright strings printed by login(1) and sshd(8) at the time of a 1194 new connection have been removed to follow other operating systems and 1195 upstream sshd. 1196 119720100915: 1198 A workaround for a fixed ld bug has been removed in kernel code, 1199 so make sure that your system ld is built from sources after 1200 revision 210245 from 2010-07-19 (r211583 if building head kernel 1201 on stable/8, r211584 for stable/7; both from 2010-08-21). 1202 A symptom of incorrect ld version is different addresses for 1203 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1204 120520100913: 1206 The $ipv6_prefer variable in rc.conf(5) has been split into 1207 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1208 1209 The $ip6addrctl_policy is a variable to choose a pre-defined 1210 address selection policy set by ip6addrctl(8). A value 1211 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1212 default is "AUTO". 1213 1214 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1215 flag (see an entry of 20090926) is set on an interface with no 1216 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1217 security reason. If you want IPv6 link-local address on all 1218 interfaces by default, set this to "YES". 1219 1220 The old ipv6_prefer="YES" is equivalent to 1221 ipv6_activate_all_interfaces="YES" and 1222 ip6addrctl_policy="ipv6_prefer". 1223 122420100913: 1225 DTrace has grown support for userland tracing. Due to this, DTrace is 1226 now i386 and amd64 only. 1227 dtruss(1) is now installed by default on those systems and a new 1228 kernel module is needed for userland tracing: fasttrap. 1229 No changes to your kernel config file are necessary to enable 1230 userland tracing, but you might consider adding 'STRIP=' and 1231 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1232 to have informative userland stack traces in DTrace (ustack). 1233 123420100725: 1235 The acpi_aiboost(4) driver has been removed in favor of the new 1236 aibs(4) driver. You should update your kernel configuration file. 1237 123820100722: 1239 BSD grep has been imported to the base system and it is built by 1240 default. It is completely BSD licensed, highly GNU-compatible, uses 1241 less memory than its GNU counterpart and has a small codebase. 1242 However, it is slower than its GNU counterpart, which is mostly 1243 noticeable for larger searches, for smaller ones it is measurable 1244 but not significant. The reason is complex, the most important factor 1245 is that we lack a modern and efficient regex library and GNU 1246 overcomes this by optimizing the searches internally. Future work 1247 on improving the regex performance is planned, for the meantime, 1248 users that need better performance, can build GNU grep instead by 1249 setting the WITH_GNU_GREP knob. 1250 125120100713: 1252 Due to the import of powerpc64 support, all existing powerpc kernel 1253 configuration files must be updated with a machine directive like this: 1254 machine powerpc powerpc 1255 1256 In addition, an updated config(8) is required to build powerpc kernels 1257 after this change. 1258 125920100713: 1260 A new version of ZFS (version 15) has been merged to -HEAD. 1261 This version uses a python library for the following subcommands: 1262 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1263 For full functionality of these commands the following port must 1264 be installed: sysutils/py-zfs 1265 126620100429: 1267 'vm_page's are now hashed by physical address to an array of mutexes. 1268 Currently this is only used to serialize access to hold_count. Over 1269 time the page queue mutex will be peeled away. This changes the size 1270 of pmap on every architecture. And requires all callers of vm_page_hold 1271 and vm_page_unhold to be updated. 1272 127320100402: 1274 WITH_CTF can now be specified in src.conf (not recommended, there 1275 are some problems with static executables), make.conf (would also 1276 affect ports which do not use GNU make and do not override the 1277 compile targets) or in the kernel config (via "makeoptions 1278 WITH_CTF=yes"). 1279 When WITH_CTF was specified there before this was silently ignored, 1280 so make sure that WITH_CTF is not used in places which could lead 1281 to unwanted behavior. 1282 128320100311: 1284 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1285 to allow 32-bit compatibility on non-x86 platforms. All kernel 1286 configurations on amd64 and ia64 platforms using these options must 1287 be modified accordingly. 1288 128920100113: 1290 The utmp user accounting database has been replaced with utmpx, 1291 the user accounting interface standardized by POSIX. 1292 Unfortunately the semantics of utmp and utmpx don't match, 1293 making it practically impossible to support both interfaces. 1294 The user accounting database is used by tools like finger(1), 1295 last(1), talk(1), w(1) and ac(8). 1296 1297 All applications in the base system use utmpx. This means only 1298 local binaries (e.g. from the ports tree) may still use these 1299 utmp database files. These applications must be rebuilt to make 1300 use of utmpx. 1301 1302 After the system has been upgraded, it is safe to remove the old 1303 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1304 assuming their contents is of no importance anymore. Old wtmp 1305 databases can only be used by last(1) and ac(8) after they have 1306 been converted to the new format using wtmpcvt(1). 1307 130820100108: 1309 Introduce the kernel thread "deadlock resolver" (which can be enabled 1310 via the DEADLKRES option, see NOTES for more details) and the 1311 sleepq_type() function for sleepqueues. 1312 131320091202: 1314 The rc.firewall and rc.firewall6 were unified, and 1315 rc.firewall6 and rc.d/ip6fw were removed. 1316 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1317 variables are obsoleted. Instead, the following new rc 1318 variables are added to rc.d/ipfw: 1319 1320 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1321 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1322 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1323 1324 The meanings correspond to the relevant IPv4 variables. 1325 132620091125: 1327 8.0-RELEASE. 1328 132920091113: 1330 The default terminal emulation for syscons(4) has been changed 1331 from cons25 to xterm on all platforms except pc98. This means 1332 that the /etc/ttys file needs to be updated to ensure correct 1333 operation of applications on the console. 1334 1335 The terminal emulation style can be toggled per window by using 1336 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1337 options can be used to change the compile-time default back to 1338 cons25. 1339 1340 To prevent graphical artifacts, make sure the TERM environment 1341 variable is set to match the terminal emulation that is being 1342 performed by syscons(4). 1343 134420091109: 1345 The layout of the structure ieee80211req_scan_result has changed. 1346 Applications that require wireless scan results (e.g. ifconfig(8)) 1347 from net80211 need to be recompiled. 1348 1349 Applications such as wpa_supplicant(8) may require a full world 1350 build without using NO_CLEAN in order to get synchronized with the 1351 new structure. 1352 135320091025: 1354 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1355 There's one kernel module for each firmware. Adding "device iwnfw" 1356 to the kernel configuration file means including all three firmware 1357 images inside the kernel. If you want to include just the one for 1358 your wireless card, use the devices iwn4965fw, iwn5000fw or 1359 iwn5150fw. 1360 136120090926: 1362 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1363 into rc.d/netif. The changes are the following: 1364 1365 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1366 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1367 Note that both variables need the "inet6" keyword at the head. 1368 1369 Do not set $ipv6_network_interfaces manually if you do not 1370 understand what you are doing. It is not needed in most cases. 1371 1372 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1373 they are obsolete. 1374 1375 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1376 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1377 1378 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1379 all configured interfaces have "inet6 accept_rtadv" in the 1380 $ifconfig_IF_ipv6. These are for backward compatibility. 1381 1382 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1383 functionality of interfaces with no corresponding 1384 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1385 and the default address selection policy of ip6addrctl(8) 1386 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1387 Note that if you want to configure IPv6 functionality on the 1388 disabled interfaces after boot, first you need to clear the flag by 1389 using ifconfig(8) like: 1390 1391 ifconfig em0 inet6 -ifdisabled 1392 1393 If YES, the default address selection policy is set as 1394 IPv6-preferred. 1395 1396 The default value of $ipv6_prefer is NO. 1397 1398 4. If your system need to receive Router Advertisement messages, 1399 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1400 scripts automatically invoke rtsol(8) when the interface becomes 1401 UP. The Router Advertisement messages are used for SLAAC 1402 (State-Less Address AutoConfiguration). 1403 140420090922: 1405 802.11s D3.03 support was committed. This is incompatible with the 1406 previous code, which was based on D3.0. 1407 140820090912: 1409 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1410 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1411 control whether accepting Router Advertisement messages or not. 1412 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1413 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1414 The ifconfig(8) utility now supports these flags. 1415 141620090910: 1417 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1418 mount(8) and -a option for df(1) to see them. 1419 142020090825: 1421 The old tunable hw.bus.devctl_disable has been superseded by 1422 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1423 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1424 is 1000. 1425 142620090813: 1427 Remove the option STOP_NMI. The default action is now to use NMI only 1428 for KDB via the newly introduced function stop_cpus_hard() and 1429 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1430 143120090803: 1432 The stable/8 branch created in subversion. This corresponds to the 1433 RELENG_8 branch in CVS. 1434 143520090719: 1436 Bump the shared library version numbers for all libraries that do not 1437 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1438 __FreeBSD_version to 800105. 1439 144020090714: 1441 Due to changes in the implementation of virtual network stack support, 1442 all network-related kernel modules must be recompiled. As this change 1443 breaks the ABI, bump __FreeBSD_version to 800104. 1444 144520090713: 1446 The TOE interface to the TCP syncache has been modified to remove 1447 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1448 The cxgb driver is the only TOE consumer affected by this change, and 1449 needs to be recompiled along with the kernel. As this change breaks 1450 the ABI, bump __FreeBSD_version to 800103. 1451 145220090712: 1453 Padding has been added to struct tcpcb, sackhint and tcpstat in 1454 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1455 maintaining the ABI. However, this change breaks the ABI, so bump 1456 __FreeBSD_version to 800102. User space tools that rely on the size of 1457 any of these structs (e.g. sockstat) need to be recompiled. 1458 145920090630: 1460 The NFS_LEGACYRPC option has been removed along with the old kernel 1461 RPC implementation that this option selected. Kernel configurations 1462 may need to be adjusted. 1463 146420090629: 1465 The network interface device nodes at /dev/net/<interface> have been 1466 removed. All ioctl operations can be performed the normal way using 1467 routing sockets. The kqueue functionality can generally be replaced 1468 with routing sockets. 1469 147020090628: 1471 The documentation from the FreeBSD Documentation Project (Handbook, 1472 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1473 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1474 147520090624: 1476 The ABI of various structures related to the SYSV IPC API have been 1477 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1478 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1479 800100. 1480 148120090622: 1482 Layout of struct vnet has changed as routing related variables were 1483 moved to their own Vimage module. Modules need to be recompiled. Bump 1484 __FreeBSD_version to 800099. 1485 148620090619: 1487 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1488 respectively. As long as no more than 16 groups per process are used, 1489 no changes should be visible. When more than 16 groups are used, old 1490 binaries may fail if they call getgroups() or getgrouplist() with 1491 statically sized storage. Recompiling will work around this, but 1492 applications should be modified to use dynamically allocated storage 1493 for group arrays as POSIX.1-2008 does not cap an implementation's 1494 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1495 1496 NFS and portalfs mounts may also be affected as the list of groups is 1497 truncated to 16. Users of NFS who use more than 16 groups, should 1498 take care that negative group permissions are not used on the exported 1499 file systems as they will not be reliable unless a GSSAPI based 1500 authentication method is used. 1501 150220090616: 1503 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1504 option compiles in the support for adaptive spinning for lockmgrs 1505 which want to enable it. The lockinit() function now accepts the flag 1506 LK_ADAPTIVE in order to make the lock object subject to adaptive 1507 spinning when both held in write and read mode. 1508 150920090613: 1510 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1511 changed. User applications that use this ioctl need to be rebuilt. 1512 151320090611: 1514 The layout of struct thread has changed. Kernel and modules need to 1515 be rebuilt. 1516 151720090608: 1518 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1519 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1520 152120090602: 1522 window(1) has been removed from the base system. It can now be 1523 installed from ports. The port is called misc/window. 1524 152520090601: 1526 The way we are storing and accessing `routing table' entries has 1527 changed. Programs reading the FIB, like netstat, need to be 1528 re-compiled. 1529 153020090601: 1531 A new netisr implementation has been added for FreeBSD 8. Network 1532 file system modules, such as igmp, ipdivert, and others, should be 1533 rebuilt. 1534 Bump __FreeBSD_version to 800096. 1535 153620090530: 1537 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1538 more valid. 1539 154020090530: 1541 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1542 Bump __FreeBSD_version to 800094. 1543 154420090529: 1545 Add mnt_xflag field to 'struct mount'. File system modules need to be 1546 rebuilt. 1547 Bump __FreeBSD_version to 800093. 1548 154920090528: 1550 The compiling option ADAPTIVE_SX has been retired while it has been 1551 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1552 The KPI for sx_init_flags() changes as accepting flags: 1553 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1554 been introduced in order to handle the reversed logic. 1555 Bump __FreeBSD_version to 800092. 1556 155720090527: 1558 Add support for hierarchical jails. Remove global securelevel. 1559 Bump __FreeBSD_version to 800091. 1560 156120090523: 1562 The layout of struct vnet_net has changed, therefore modules 1563 need to be rebuilt. 1564 Bump __FreeBSD_version to 800090. 1565 156620090523: 1567 The newly imported zic(8) produces a new format in the output. Please 1568 run tzsetup(8) to install the newly created data to /etc/localtime. 1569 157020090520: 1571 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1572 hw.usb.* and is now consistent again with previous releases. 1573 157420090520: 1575 802.11 monitor mode support was revised and driver api's were changed. 1576 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1577 of DLT_IEEE802_11. No user-visible data structures were changed but 1578 applications that use DLT_IEEE802_11 may require changes. 1579 Bump __FreeBSD_version to 800088. 1580 158120090430: 1582 The layout of the following structs has changed: sysctl_oid, 1583 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1584 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1585 panics may be experienced. World rebuild is required for 1586 correctly checking networking state from userland. 1587 Bump __FreeBSD_version to 800085. 1588 158920090429: 1590 MLDv2 and Source-Specific Multicast (SSM) have been merged 1591 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1592 The implementation of SSM within FreeBSD's IPv6 stack closely 1593 follows the IPv4 implementation. 1594 1595 For kernel developers: 1596 1597 * The most important changes are that the ip6_output() and 1598 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1599 and this lock has been downgraded to a non-recursive mutex. 1600 1601 * As with the changes to the IPv4 stack to support SSM, filtering 1602 of inbound multicast traffic must now be performed by transport 1603 protocols within the IPv6 stack. This does not apply to TCP and 1604 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1605 1606 * The KPIs used by IPv6 multicast are similar to those used by 1607 the IPv4 stack, with the following differences: 1608 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1609 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1610 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1611 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1612 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1613 for MLDv1 have an additional 'timer' argument which is used to 1614 jitter the initial membership report for the solicited-node 1615 multicast membership on-link. 1616 * This is not strictly needed for MLDv2, which already jitters 1617 its report transmissions. However, the 'timer' argument is 1618 preserved in case MLDv1 is active on the interface. 1619 1620 * The KAME linked-list based IPv6 membership implementation has 1621 been refactored to use a vector similar to that used by the IPv4 1622 stack. 1623 Code which maintains a list of its own multicast memberships 1624 internally, e.g. carp, has been updated to reflect the new 1625 semantics. 1626 1627 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1628 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1629 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1630 implementation constraint which needs to be addressed in HEAD. 1631 1632 For application developers: 1633 1634 * The changes are broadly similar to those made for the IPv4 1635 stack. 1636 1637 * The use of IPv4 and IPv6 multicast socket options on the same 1638 socket, using mapped addresses, HAS NOT been tested or supported. 1639 1640 * There are a number of issues with the implementation of various 1641 IPv6 multicast APIs which need to be resolved in the API surface 1642 before the implementation is fully compatible with KAME userland 1643 use, and these are mostly to do with interface index treatment. 1644 1645 * The literature available discusses the use of either the delta / ASM 1646 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1647 using setsourcefilter(3)/getsourcefilter(3). For more information 1648 please refer to RFC 3768, 'Socket Interface Extensions for 1649 Multicast Source Filters'. 1650 1651 * Applications which use the published RFC 3678 APIs should be fine. 1652 1653 For systems administrators: 1654 1655 * The mtest(8) utility has been refactored to support IPv6, in 1656 addition to IPv4. Interface addresses are no longer accepted 1657 as arguments, their names must be used instead. The utility 1658 will map the interface name to its first IPv4 address as 1659 returned by getifaddrs(3). 1660 1661 * The ifmcstat(8) utility has also been updated to print the MLDv2 1662 endpoint state and source filter lists via sysctl(3). 1663 1664 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1665 loopback of IPv6 multicast datagrams by default; it defaults to 1 1666 to preserve the existing behaviour. Disabling multicast loopback is 1667 recommended for optimal system performance. 1668 1669 * The IPv6 MROUTING code has been changed to examine this sysctl 1670 instead of attempting to perform a group lookup before looping 1671 back forwarded datagrams. 1672 1673 Bump __FreeBSD_version to 800084. 1674 167520090422: 1676 Implement low-level Bluetooth HCI API. 1677 Bump __FreeBSD_version to 800083. 1678 167920090419: 1680 The layout of struct malloc_type, used by modules to register new 1681 memory allocation types, has changed. Most modules will need to 1682 be rebuilt or panics may be experienced. 1683 Bump __FreeBSD_version to 800081. 1684 168520090415: 1686 Anticipate overflowing inp_flags - add inp_flags2. 1687 This changes most offsets in inpcb, so checking v4 connection 1688 state will require a world rebuild. 1689 Bump __FreeBSD_version to 800080. 1690 169120090415: 1692 Add an llentry to struct route and struct route_in6. Modules 1693 embedding a struct route will need to be recompiled. 1694 Bump __FreeBSD_version to 800079. 1695 169620090414: 1697 The size of rt_metrics_lite and by extension rtentry has changed. 1698 Networking administration apps will need to be recompiled. 1699 The route command now supports show as an alias for get, weighting 1700 of routes, sticky and nostick flags to alter the behavior of stateful 1701 load balancing. 1702 Bump __FreeBSD_version to 800078. 1703 170420090408: 1705 Do not use Giant for kbdmux(4) locking. This is wrong and 1706 apparently causing more problems than it solves. This will 1707 re-open the issue where interrupt handlers may race with 1708 kbdmux(4) in polling mode. Typical symptoms include (but 1709 not limited to) duplicated and/or missing characters when 1710 low level console functions (such as gets) are used while 1711 interrupts are enabled (for example geli password prompt, 1712 mountroot prompt etc.). Disabling kbdmux(4) may help. 1713 171420090407: 1715 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1716 kernel modules referencing any of the above need to be recompiled. 1717 Bump __FreeBSD_version to 800075. 1718 171920090320: 1720 GEOM_PART has become the default partition slicer for storage devices, 1721 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1722 introduces some changes: 1723 1724 MSDOS/EBR: the devices created from MSDOS extended partition entries 1725 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1726 to devices with offset-based names. fstabs may need to be modified. 1727 1728 BSD: the "geometry does not match label" warning is harmless in most 1729 cases but it points to problems in file system misalignment with 1730 disk geometry. The "c" partition is now implicit, covers the whole 1731 top-level drive and cannot be (mis)used by users. 1732 1733 General: Kernel dumps are now not allowed to be written to devices 1734 whose partition types indicate they are meant to be used for file 1735 systems (or, in case of MSDOS partitions, as something else than 1736 the "386BSD" type). 1737 1738 Most of these changes date approximately from 200812. 1739 174020090319: 1741 The uscanner(4) driver has been removed from the kernel. This follows 1742 Linux removing theirs in 2.6 and making libusb the default interface 1743 (supported by sane). 1744 174520090319: 1746 The multicast forwarding code has been cleaned up. netstat(1) 1747 only relies on KVM now for printing bandwidth upcall meters. 1748 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1749 ip6_mroute_mod respectively. The config(5) options for statically 1750 compiling this code remain the same, i.e. 'options MROUTING'. 1751 175220090315: 1753 Support for the IFF_NEEDSGIANT network interface flag has been 1754 removed, which means that non-MPSAFE network device drivers are no 1755 longer supported. In particular, if_ar, if_sr, and network device 1756 drivers from the old (legacy) USB stack can no longer be built or 1757 used. 1758 175920090313: 1760 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1761 a bunch of new language catalog files have also been added. 1762 This means that some common libc messages are now localized and 1763 they depend on the LC_MESSAGES environmental variable. 1764 176520090313: 1766 The k8temp(4) driver has been renamed to amdtemp(4) since 1767 support for Family 10 and Family 11 CPU families was added. 1768 176920090309: 1770 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1771 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1772 1773 For kernel developers, the most important changes are that the 1774 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1775 and this lock has been downgraded to a non-recursive mutex. 1776 1777 Transport protocols (UDP, Raw IP) are now responsible for filtering 1778 inbound multicast traffic according to group membership and source 1779 filters. The imo_multicast_filter() KPI exists for this purpose. 1780 Transports which do not use multicast (SCTP, TCP) already reject 1781 multicast by default. Forwarding and receive performance may improve 1782 as a mutex acquisition is no longer needed in the ip_input() 1783 low-level input path. in_addmulti() and in_delmulti() are shimmed 1784 to new KPIs which exist to support SSM in-kernel. 1785 1786 For application developers, it is recommended that loopback of 1787 multicast datagrams be disabled for best performance, as this 1788 will still cause the lock to be taken for each looped-back 1789 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1790 be tuned to 0 to disable loopback by default; it defaults to 1 1791 to preserve the existing behaviour. 1792 1793 For systems administrators, to obtain best performance with 1794 multicast reception and multiple groups, it is always recommended 1795 that a card with a suitably precise hash filter is used. Hash 1796 collisions will still result in the lock being taken within the 1797 transport protocol input path to check group membership. 1798 1799 If deploying FreeBSD in an environment with IGMP snooping switches, 1800 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1801 enabled; this forces 224.0.0.0/24 group membership to be announced 1802 via IGMP. 1803 1804 The size of 'struct igmpstat' has changed; netstat needs to be 1805 recompiled to reflect this. 1806 Bump __FreeBSD_version to 800070. 1807 180820090309: 1809 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1810 updated to use it. This requires a buildworld/installworld in order to 1811 update the library and dependencies (usbconfig, etc). Its advisable to 1812 rebuild all ports which uses libusb. More specific directions are given 1813 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1814 libusb are no longer required and can be removed. 1815 181620090302: 1817 A workaround is committed to allow the creation of System V shared 1818 memory segment of size > 2 GB on the 64-bit architectures. 1819 Due to a limitation of the existing ABI, the shm_segsz member 1820 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1821 wrong for large segments. Note that limits must be explicitly 1822 raised to allow such segments to be created. 1823 182420090301: 1825 The layout of struct ifnet has changed, requiring a rebuild of all 1826 network device driver modules. 1827 182820090227: 1829 The /dev handling for the new USB stack has changed, a 1830 buildworld/installworld is required for libusb20. 1831 183220090223: 1833 The new USB2 stack has now been permanently moved in and all kernel and 1834 module names reverted to their previous values (eg, usb, ehci, ohci, 1835 ums, ...). The old usb stack can be compiled in by prefixing the name 1836 with the letter 'o', the old usb modules have been removed. 1837 Updating entry 20090216 for xorg and 20090215 for libmap may still 1838 apply. 1839 184020090217: 1841 The rc.conf(5) option if_up_delay has been renamed to 1842 defaultroute_delay to better reflect its purpose. If you have 1843 customized this setting in /etc/rc.conf you need to update it to 1844 use the new name. 1845 184620090216: 1847 xorg 7.4 wants to configure its input devices via hald which does not 1848 yet work with USB2. If the keyboard/mouse does not work in xorg then 1849 add 1850 Option "AllowEmptyInput" "off" 1851 to your ServerLayout section. This will cause X to use the configured 1852 kbd and mouse sections from your xorg.conf. 1853 185420090215: 1855 The GENERIC kernels for all architectures now default to the new USB2 1856 stack. No kernel config options or code have been removed so if a 1857 problem arises please report it and optionally revert to the old USB 1858 stack. If you are loading USB kernel modules or have a custom kernel 1859 that includes GENERIC then ensure that usb names are also changed over, 1860 eg uftdi -> usb2_serial_ftdi. 1861 1862 Older programs linked against the ports libusb 0.1 need to be 1863 redirected to the new stack's libusb20. /etc/libmap.conf can 1864 be used for this: 1865 # Map old usb library to new one for usb2 stack 1866 libusb-0.1.so.8 libusb20.so.1 1867 186820090209: 1869 All USB ethernet devices now attach as interfaces under the name ueN 1870 (eg. ue0). This is to provide a predictable name as vendors often 1871 change usb chipsets in a product without notice. 1872 187320090203: 1874 The ichsmb(4) driver has been changed to require SMBus slave 1875 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1876 All of the other SMBus controller drivers require left-justified 1877 slave addresses, so this change makes all the drivers provide the 1878 same interface. 1879 188020090201: 1881 INET6 statistics (struct ip6stat) was updated. 1882 netstat(1) needs to be recompiled. 1883 188420090119: 1885 NTFS has been removed from GENERIC kernel on amd64 to match 1886 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1887 will load ntfs.ko module automatically when NTFS support is 1888 actually needed, unless ntfs.ko is not installed or security 1889 level prohibits loading kernel modules. If either is the case, 1890 "options NTFS" has to be added into kernel config. 1891 189220090115: 1893 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1894 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1895 800061. User space tools that rely on the size of struct tcpcb in 1896 tcp_var.h (e.g. sockstat) need to be recompiled. 1897 189820081225: 1899 ng_tty(4) module updated to match the new TTY subsystem. 1900 Due to API change, user-level applications must be updated. 1901 New API support added to mpd5 CVS and expected to be present 1902 in next mpd5.3 release. 1903 190420081219: 1905 With __FreeBSD_version 800060 the makefs tool is part of 1906 the base system (it was a port). 1907 190820081216: 1909 The afdata and ifnet locks have been changed from mutexes to 1910 rwlocks, network modules will need to be re-compiled. 1911 191220081214: 1913 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1914 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1915 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1916 architecture and 40 bytes on 64-bit architecture. The userland 1917 applications "arp" and "ndp" have been updated accordingly. 1918 The output from "netstat -r" shows only routing entries and 1919 none of the L2 information. 1920 192120081130: 1922 __FreeBSD_version 800057 marks the switchover from the 1923 binary ath hal to source code. Users must add the line: 1924 1925 options AH_SUPPORT_AR5416 1926 1927 to their kernel config files when specifying: 1928 1929 device ath_hal 1930 1931 The ath_hal module no longer exists; the code is now compiled 1932 together with the driver in the ath module. It is now 1933 possible to tailor chip support (i.e. reduce the set of chips 1934 and thereby the code size); consult ath_hal(4) for details. 1935 193620081121: 1937 __FreeBSD_version 800054 adds memory barriers to 1938 <machine/atomic.h>, new interfaces to ifnet to facilitate 1939 multiple hardware transmit queues for cards that support 1940 them, and a lock-less ring-buffer implementation to 1941 enable drivers to more efficiently manage queueing of 1942 packets. 1943 194420081117: 1945 A new version of ZFS (version 13) has been merged to -HEAD. 1946 This version has zpool attribute "listsnapshots" off by 1947 default, which means "zfs list" does not show snapshots, 1948 and is the same as Solaris behavior. 1949 195020081028: 1951 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1952 195320081009: 1954 The uhci, ohci, ehci and slhci USB Host controller drivers have 1955 been put into separate modules. If you load the usb module 1956 separately through loader.conf you will need to load the 1957 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1958 controller add the following to loader.conf: 1959 1960 uhci_load="YES" 1961 ehci_load="YES" 1962 196320081009: 1964 The ABI used by the PMC toolset has changed. Please keep 1965 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1966 sync. 1967 196820081009: 1969 atapci kernel module now includes only generic PCI ATA 1970 driver. AHCI driver moved to ataahci kernel module. 1971 All vendor-specific code moved into separate kernel modules: 1972 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1973 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1974 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1975 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1976 197720080820: 1978 The TTY subsystem of the kernel has been replaced by a new 1979 implementation, which provides better scalability and an 1980 improved driver model. Most common drivers have been migrated to 1981 the new TTY subsystem, while others have not. The following 1982 drivers have not yet been ported to the new TTY layer: 1983 1984 PCI/ISA: 1985 cy, digi, rc, rp, sio 1986 1987 USB: 1988 ubser, ucycom 1989 1990 Line disciplines: 1991 ng_h4, ng_tty, ppp, sl, snp 1992 1993 Adding these drivers to your kernel configuration file shall 1994 cause compilation to fail. 1995 199620080818: 1997 ntpd has been upgraded to 4.2.4p5. 1998 199920080801: 2000 OpenSSH has been upgraded to 5.1p1. 2001 2002 For many years, FreeBSD's version of OpenSSH preferred DSA 2003 over RSA for host and user authentication keys. With this 2004 upgrade, we've switched to the vendor's default of RSA over 2005 DSA. This may cause upgraded clients to warn about unknown 2006 host keys even for previously known hosts. Users should 2007 follow the usual procedure for verifying host keys before 2008 accepting the RSA key. 2009 2010 This can be circumvented by setting the "HostKeyAlgorithms" 2011 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 2012 command line. 2013 2014 Please note that the sequence of keys offered for 2015 authentication has been changed as well. You may want to 2016 specify IdentityFile in a different order to revert this 2017 behavior. 2018 201920080713: 2020 The sio(4) driver has been removed from the i386 and amd64 2021 kernel configuration files. This means uart(4) is now the 2022 default serial port driver on those platforms as well. 2023 2024 To prevent collisions with the sio(4) driver, the uart(4) driver 2025 uses different names for its device nodes. This means the 2026 onboard serial port will now most likely be called "ttyu0" 2027 instead of "ttyd0". You may need to reconfigure applications to 2028 use the new device names. 2029 2030 When using the serial port as a boot console, be sure to update 2031 /boot/device.hints and /etc/ttys before booting the new kernel. 2032 If you forget to do so, you can still manually specify the hints 2033 at the loader prompt: 2034 2035 set hint.uart.0.at="isa" 2036 set hint.uart.0.port="0x3F8" 2037 set hint.uart.0.flags="0x10" 2038 set hint.uart.0.irq="4" 2039 boot -s 2040 204120080609: 2042 The gpt(8) utility has been removed. Use gpart(8) to partition 2043 disks instead. 2044 204520080603: 2046 The version that Linuxulator emulates was changed from 2.4.2 2047 to 2.6.16. If you experience any problems with Linux binaries 2048 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2049 if it fixes the problem contact emulation mailing list. 2050 205120080525: 2052 ISDN4BSD (I4B) was removed from the src tree. You may need to 2053 update a your kernel configuration and remove relevant entries. 2054 205520080509: 2056 I have checked in code to support multiple routing tables. 2057 See the man pages setfib(1) and setfib(2). 2058 This is a hopefully backwards compatible version, 2059 but to make use of it you need to compile your kernel 2060 with options ROUTETABLES=2 (or more up to 16). 2061 206220080420: 2063 The 802.11 wireless support was redone to enable multi-bss 2064 operation on devices that are capable. The underlying device 2065 is no longer used directly but instead wlanX devices are 2066 cloned with ifconfig. This requires changes to rc.conf files. 2067 For example, change: 2068 ifconfig_ath0="WPA DHCP" 2069 to 2070 wlans_ath0=wlan0 2071 ifconfig_wlan0="WPA DHCP" 2072 see rc.conf(5) for more details. In addition, mergemaster of 2073 /etc/rc.d is highly recommended. Simultaneous update of userland 2074 and kernel wouldn't hurt either. 2075 2076 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2077 modules were merged into the base wlan module. All references 2078 to these modules (e.g. in kernel config files) must be removed. 2079 208020080408: 2081 psm(4) has gained write(2) support in native operation level. 2082 Arbitrary commands can be written to /dev/psm%d and status can 2083 be read back from it. Therefore, an application is responsible 2084 for status validation and error recovery. It is a no-op in 2085 other operation levels. 2086 208720080312: 2088 Support for KSE threading has been removed from the kernel. To 2089 run legacy applications linked against KSE libmap.conf may 2090 be used. The following libmap.conf may be used to ensure 2091 compatibility with any prior release: 2092 2093 libpthread.so.1 libthr.so.1 2094 libpthread.so.2 libthr.so.2 2095 libkse.so.3 libthr.so.3 2096 209720080301: 2098 The layout of struct vmspace has changed. This affects libkvm 2099 and any executables that link against libkvm and use the 2100 kvm_getprocs() function. In particular, but not exclusively, 2101 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2102 The effects are minimal, but it's advisable to upgrade world 2103 nonetheless. 2104 210520080229: 2106 The latest em driver no longer has support in it for the 2107 82575 adapter, this is now moved to the igb driver. The 2108 split was done to make new features that are incompatible 2109 with older hardware easier to do. 2110 211120080220: 2112 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2113 likewise the kernel option is now GEOM_LINUX_LVM. 2114 211520080211: 2116 The default NFS mount mode has changed from UDP to TCP for 2117 increased reliability. If you rely on (insecurely) NFS 2118 mounting across a firewall you may need to update your 2119 firewall rules. 2120 212120080208: 2122 Belatedly note the addition of m_collapse for compacting 2123 mbuf chains. 2124 212520080126: 2126 The fts(3) structures have been changed to use adequate 2127 integer types for their members and so to be able to cope 2128 with huge file trees. The old fts(3) ABI is preserved 2129 through symbol versioning in libc, so third-party binaries 2130 using fts(3) should still work, although they will not take 2131 advantage of the extended types. At the same time, some 2132 third-party software might fail to build after this change 2133 due to unportable assumptions made in its source code about 2134 fts(3) structure members. Such software should be fixed 2135 by its vendor or, in the worst case, in the ports tree. 2136 FreeBSD_version 800015 marks this change for the unlikely 2137 case that a portable fix is impossible. 2138 213920080123: 2140 To upgrade to -current after this date, you must be running 2141 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2142 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2143 214420071128: 2145 The ADAPTIVE_GIANT kernel option has been retired because its 2146 functionality is the default now. 2147 214820071118: 2149 The AT keyboard emulation of sunkbd(4) has been turned on 2150 by default. In order to make the special symbols of the Sun 2151 keyboards driven by sunkbd(4) work under X these now have 2152 to be configured the same way as Sun USB keyboards driven 2153 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2154 2155 Option "XkbLayout" "us" 2156 Option "XkbRules" "xorg" 2157 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2158 215920071024: 2160 It has been decided that it is desirable to provide ABI 2161 backwards compatibility to the FreeBSD 4/5/6 versions of the 2162 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2163 broken with the introduction of PCI domain support (see the 2164 20070930 entry). Unfortunately, this required the ABI of 2165 PCIOCGETCONF to be broken again in order to be able to 2166 provide backwards compatibility to the old version of that 2167 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2168 again. As for prominent ports this affects neither pciutils 2169 nor xorg-server this time, the hal port needs to be rebuilt 2170 however. 2171 217220071020: 2173 The misnamed kthread_create() and friends have been renamed 2174 to kproc_create() etc. Many of the callers already 2175 used kproc_start().. 2176 I will return kthread_create() and friends in a while 2177 with implementations that actually create threads, not procs. 2178 Renaming corresponds with version 800002. 2179 218020071010: 2181 RELENG_7 branched. 2182 2183COMMON ITEMS: 2184 2185 General Notes 2186 ------------- 2187 Avoid using make -j when upgrading. While generally safe, there are 2188 sometimes problems using -j to upgrade. If your upgrade fails with 2189 -j, please try again without -j. From time to time in the past there 2190 have been problems using -j with buildworld and/or installworld. This 2191 is especially true when upgrading between "distant" versions (eg one 2192 that cross a major release boundary or several minor releases, or when 2193 several months have passed on the -current branch). 2194 2195 Sometimes, obscure build problems are the result of environment 2196 poisoning. This can happen because the make utility reads its 2197 environment when searching for values for global variables. To run 2198 your build attempts in an "environmental clean room", prefix all make 2199 commands with 'env -i '. See the env(1) manual page for more details. 2200 2201 When upgrading from one major version to another it is generally best 2202 to upgrade to the latest code in the currently installed branch first, 2203 then do an upgrade to the new branch. This is the best-tested upgrade 2204 path, and has the highest probability of being successful. Please try 2205 this approach before reporting problems with a major version upgrade. 2206 2207 When upgrading a live system, having a root shell around before 2208 installing anything can help undo problems. Not having a root shell 2209 around can lead to problems if pam has changed too much from your 2210 starting point to allow continued authentication after the upgrade. 2211 2212 ZFS notes 2213 --------- 2214 When upgrading the boot ZFS pool to a new version, always follow 2215 these two steps: 2216 2217 1.) recompile and reinstall the ZFS boot loader and boot block 2218 (this is part of "make buildworld" and "make installworld") 2219 2220 2.) update the ZFS boot block on your boot drive 2221 2222 The following example updates the ZFS boot block on the first 2223 partition (freebsd-boot) of a GPT partitioned drive ad0: 2224 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2225 2226 Non-boot pools do not need these updates. 2227 2228 To build a kernel 2229 ----------------- 2230 If you are updating from a prior version of FreeBSD (even one just 2231 a few days old), you should follow this procedure. It is the most 2232 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2233 2234 make kernel-toolchain 2235 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2236 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2237 2238 To test a kernel once 2239 --------------------- 2240 If you just want to boot a kernel once (because you are not sure 2241 if it works, or if you want to boot a known bad kernel to provide 2242 debugging information) run 2243 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2244 nextboot -k testkernel 2245 2246 To just build a kernel when you know that it won't mess you up 2247 -------------------------------------------------------------- 2248 This assumes you are already running a CURRENT system. Replace 2249 ${arch} with the architecture of your machine (e.g. "i386", 2250 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2251 2252 cd src/sys/${arch}/conf 2253 config KERNEL_NAME_HERE 2254 cd ../compile/KERNEL_NAME_HERE 2255 make depend 2256 make 2257 make install 2258 2259 If this fails, go to the "To build a kernel" section. 2260 2261 To rebuild everything and install it on the current system. 2262 ----------------------------------------------------------- 2263 # Note: sometimes if you are running current you gotta do more than 2264 # is listed here if you are upgrading from a really old current. 2265 2266 <make sure you have good level 0 dumps> 2267 make buildworld 2268 make kernel KERNCONF=YOUR_KERNEL_HERE 2269 [1] 2270 <reboot in single user> [3] 2271 mergemaster -p [5] 2272 make installworld 2273 mergemaster -i [4] 2274 make delete-old [6] 2275 <reboot> 2276 2277 To cross-install current onto a separate partition 2278 -------------------------------------------------- 2279 # In this approach we use a separate partition to hold 2280 # current's root, 'usr', and 'var' directories. A partition 2281 # holding "/", "/usr" and "/var" should be about 2GB in 2282 # size. 2283 2284 <make sure you have good level 0 dumps> 2285 <boot into -stable> 2286 make buildworld 2287 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2288 <maybe newfs current's root partition> 2289 <mount current's root partition on directory ${CURRENT_ROOT}> 2290 make installworld DESTDIR=${CURRENT_ROOT} 2291 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2292 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2293 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2294 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2295 <reboot into current> 2296 <do a "native" rebuild/install as described in the previous section> 2297 <maybe install compatibility libraries from ports/misc/compat*> 2298 <reboot> 2299 2300 2301 To upgrade in-place from stable to current 2302 ---------------------------------------------- 2303 <make sure you have good level 0 dumps> 2304 make buildworld [9] 2305 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2306 [1] 2307 <reboot in single user> [3] 2308 mergemaster -p [5] 2309 make installworld 2310 mergemaster -i [4] 2311 make delete-old [6] 2312 <reboot> 2313 2314 Make sure that you've read the UPDATING file to understand the 2315 tweaks to various things you need. At this point in the life 2316 cycle of current, things change often and you are on your own 2317 to cope. The defaults can also change, so please read ALL of 2318 the UPDATING entries. 2319 2320 Also, if you are tracking -current, you must be subscribed to 2321 freebsd-current@freebsd.org. Make sure that before you update 2322 your sources that you have read and understood all the recent 2323 messages there. If in doubt, please track -stable which has 2324 much fewer pitfalls. 2325 2326 [1] If you have third party modules, such as vmware, you 2327 should disable them at this point so they don't crash your 2328 system on reboot. 2329 2330 [3] From the bootblocks, boot -s, and then do 2331 fsck -p 2332 mount -u / 2333 mount -a 2334 cd src 2335 adjkerntz -i # if CMOS is wall time 2336 Also, when doing a major release upgrade, it is required that 2337 you boot into single user mode to do the installworld. 2338 2339 [4] Note: This step is non-optional. Failure to do this step 2340 can result in a significant reduction in the functionality of the 2341 system. Attempting to do it by hand is not recommended and those 2342 that pursue this avenue should read this file carefully, as well 2343 as the archives of freebsd-current and freebsd-hackers mailing lists 2344 for potential gotchas. The -U option is also useful to consider. 2345 See mergemaster(8) for more information. 2346 2347 [5] Usually this step is a noop. However, from time to time 2348 you may need to do this if you get unknown user in the following 2349 step. It never hurts to do it all the time. You may need to 2350 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2351 install) after the buildworld before this step if you last updated 2352 from current before 20130425 or from -stable before 20130430. 2353 2354 [6] This only deletes old files and directories. Old libraries 2355 can be deleted by "make delete-old-libs", but you have to make 2356 sure that no program is using those libraries anymore. 2357 2358 [8] In order to have a kernel that can run the 4.x binaries needed to 2359 do an installworld, you must include the COMPAT_FREEBSD4 option in 2360 your kernel. Failure to do so may leave you with a system that is 2361 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2362 required to run the 5.x binaries on more recent kernels. And so on 2363 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2364 2365 Make sure that you merge any new devices from GENERIC since the 2366 last time you updated your kernel config file. 2367 2368 [9] When checking out sources, you must include the -P flag to have 2369 cvs prune empty directories. 2370 2371 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2372 "?=" instead of the "=" assignment operator, so that buildworld can 2373 override the CPUTYPE if it needs to. 2374 2375 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2376 not on the command line, or in /etc/make.conf. buildworld will 2377 warn if it is improperly defined. 2378FORMAT: 2379 2380This file contains a list, in reverse chronological order, of major 2381breakages in tracking -current. It is not guaranteed to be a complete 2382list of such breakages, and only contains entries since October 10, 2007. 2383If you need to see UPDATING entries from before that date, you will need 2384to fetch an UPDATING file from an older FreeBSD release. 2385 2386Copyright information: 2387 2388Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2389 2390Redistribution, publication, translation and use, with or without 2391modification, in full or in part, in any form or format of this 2392document are permitted without further permission from the author. 2393 2394THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2395IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2396WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2397DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2398INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2399(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2400SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2401HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2402STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2403IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2404POSSIBILITY OF SUCH DAMAGE. 2405 2406Contact Warner Losh if you have any questions about your use of 2407this document. 2408 2409$FreeBSD: releng/10.1/UPDATING 303304 2016-07-25 15:04:17Z delphij $ 2410