UPDATING revision 307933
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 1920161025 p24 FreeBSD-SA-16:15.sysarch [revised] 20 21 Fix incorrect argument validation in sysarch(2). [SA-16:15] 22 2320161010 p23 FreeBSD-SA-16:29.bspatch 24 FreeBSD-SA-16:30.portsnap 25 FreeBSD-SA-16:31.libarchive 26 27 Fix bspatch heap overflow vulnerability. [SA-16:29] 28 29 Fix multiple portsnap vulnerabilities. [SA-16:30] 30 31 Fix multiple libarchive vulnerabilities. [SA-16:31] 32 3320160926 p22 FreeBSD-SA-16:26.openssl [revised] 34 35 Fix OpenSSL regression introduced in SA-16:26. 36 3720160923 p21 FreeBSD-SA-16:26.openssl 38 39 Fix multiple OpenSSL vulnerabilitites. 40 4120160725 p20 FreeBSD-SA-16:25.bspatch 42 FreeBSD-EN-16:09.freebsd-update 43 44 Fix bspatch heap overflow vulnerability. [SA-16:25] 45 46 Fix freebsd-update(8) support of FreeBSD 11.0 release 47 distribution. [EN-16:09] 48 4920160604 p19 FreeBSD-SA-16:24.ntp 50 51 Fix multiple vulnerabilities of ntp. 52 5320160531 p18 FreeBSD-SA-16:20.linux 54 FreeBSD-SA-16:21.43bsd 55 FreeBSD-SA-16:22.libarchive 56 57 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 58 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 59 Fix directory traversal in cpio(1). [SA-16:22] 60 6120160517 p17 FreeBSD-SA-16:18.atkbd 62 FreeBSD-SA-16:19.sendmsg 63 64 Fix buffer overflow in keyboard driver. [SA-16:18] 65 66 Fix incorrect argument handling in sendmsg(2). [SA-16:19] 67 6820160504 p16 FreeBSD-SA-16:17.openssl 69 FreeBSD-EN-16:07.ipi 70 FreeBSD-EN-16:08.zfs 71 72 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 73 74 Fix excessive latency in x86 IPI delivery. [EN-16:07] 75 76 Fix memory leak in ZFS. [EN-16:08] 77 7820160429 p15 FreeBSD-SA-16:16.ntp 79 80 Fix multiple vulnerabilities of ntp. 81 8220160316 p14 FreeBSD-SA-16:14.openssh-xauth 83 FreeBSD-SA-16:15.sysarch 84 FreeBSD-EN-16:04.hyperv 85 FreeBSD-EN-16:05.hv_netvsc 86 87 Fix OpenSSH xauth(1) command injection. [SA-16:14] 88 Fix incorrect argument validation in sysarch(2). [SA-16:15] 89 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04] 90 Fix hv_netvsc(4) incorrect TCP/IP checksums. [EN-16:05] 91 9220160303 p13 FreeBSD-SA-16:12.openssl 93 94 Fix multiple vulnerabilities of OpenSSL. 95 9620160130 p12 FreeBSD-SA-16:11.openssl 97 98 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 99 10020160127 p11 FreeBSD-SA-16:09.ntp 101 FreeBSD-SA-16:10.linux 102 103 Fix multiple vulnerabilities of ntp. [SA-16:09] 104 105 Fix Linux compatibility layer issetugid(2) system call 106 vulnerability. [SA-16:10] 107 10820160114 p10 FreeBSD-SA-16:07.openssh 109 110 Fix OpenSSH client information leak. [SA-16:07] 111 11220160114 p9 FreeBSD-EN-16:01.filemon 113 FreeBSD-EN-16:02.pf 114 FreeBSD-EN-16:03.yplib 115 FreeBSD-SA-16:01.sctp 116 FreeBSD-SA-16:02.ntp 117 FreeBSD-SA-16:03.linux 118 FreeBSD-SA-16:04.linux 119 FreeBSD-SA-16:05.tcp 120 FreeBSD-SA-16:06.bsnmpd 121 122 Fix multiple stability and locking problems in filemon(4). [EN-16:01] 123 Fix pf(4) generating bad TCP checksums. [EN-16:02] 124 Fix infinite loop in YP/NIS client library. [EN-16:03] 125 Fix remote denial of service in SCTP. [SA-16:01] 126 Update NTP to 4.2.8p5. [SA-16:02] 127 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 128 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 129 Fix crash in TCP MD5 signatures. [SA-16:05] 130 Fix insecure default permissions for snmpd.config. [SA-16:06] 131 13220151205 p8 FreeBSD-SA-15:26.openssl 133 134 Fix multiple OpenSSL vulnerabilities. [SA-15:26] 135 13620151104 p7 FreeBSD-SA-15:25.ntp [revised] 137 FreeBSD-EN-15:19.kqueue 138 FreeBSD-EN-15:20.vm 139 140 Fix regression in ntpd(8) lacking support for RAWDCF reference 141 clock in 10.2-RELEASE-p6. [SA-15:25] 142 143 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 144 145 Fix applications exiting due to segmentation violation on a correct 146 memory address. [EN-15:20.vm] 147 14820151026: p6 FreeBSD-SA-15:25.ntp 149 150 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 151 15220151002: p5 FreeBSD-SA-15:24.rpcbind [revised] 153 Revised patch to address a regression that prevents NIS from working. 154 15520150929: p4 FreeBSD-SA-15:24.rpcbind 156 157 Fix rpcbind(8) remote denial of service. [SA-15:24] 158 15920150916: p3 FreeBSD-EN-15:16.pw 160 FreeBSD-EN-15:17.libc 161 FreeBSD-EN-15:18.pkg 162 163 Fix regression in pw(8) when creating numeric users or groups. 164 [EN-15:16] 165 166 Fix libc handling of signals for multi-threaded processes. 167 [EN-15:17] 168 169 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 170 17120150825: p2 FreeBSD-SA-15:22.openssh 172 FreeBSD-EN-15:15.pkg 173 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 174 175 Fix insufficient check of unsupported pkg(7) signature methods. 176 [EN-15:15] 177 17820150818: p1 FreeBSD-SA-15:20.expat 179 FreeBSD-EN-15:11.toolchain 180 FreeBSD-EN-15:12.netstat 181 FreeBSD-EN-15:13.vidcontrol 182 183 Fix multiple integer overflows in expat (libbsdxml) XML parser. 184 [SA-15:20] 185 186 Fix make(1) syntax errors when upgrading from 9.x and earlier. 187 [EN-15:11] 188 189 Fix incorrect netstat(1) data handling on 32-bit systems. 190 [EN-15:12] 191 192 Allow size argument to vidcontrol(1) for syscons(4). [EN-15:13] 193 19420150813: 195 10.2-RELEASE. 196 19720150703: 198 The default Unbound configuration now enables remote control 199 using a local socket. Users who have already enabled the 200 local_unbound service should regenerate their configuration 201 by running "service local_unbound setup" as root. 202 20320150624: 204 An additional fix for the issue described in the 20150614 sendmail 205 entry below has been been committed in revision 284786. 206 20720150615: 208 The fix for the issue described in the 20150614 sendmail entry 209 below has been been committed in revision 284485. The work 210 around described in that entry is no longer needed unless the 211 default setting is overridden by a confDH_PARAMETERS configuration 212 setting of '5' or pointing to a 512 bit DH parameter file. 213 21420150614: 215 The import of openssl to address the FreeBSD-SA-15:10.openssl 216 security advisory includes a change which rejects handshakes 217 with DH parameters below 768 bits. sendmail releases prior 218 to 8.15.2 (not yet released), defaulted to a 512 bit 219 DH parameter setting for client connections. To work around 220 this interoperability, sendmail can be configured to use a 221 2048 bit DH parameter by: 222 223 1. Edit /etc/mail/`hostname`.mc 224 2. If a setting for confDH_PARAMETERS does not exist or 225 exists and is set to a string beginning with '5', 226 replace it with '2'. 227 3. If a setting for confDH_PARAMETERS exists and is set to 228 a file path, create a new file with: 229 openssl dhparam -out /path/to/file 2048 230 4. Rebuild the .cf file: 231 cd /etc/mail/; make; make install 232 5. Restart sendmail: 233 cd /etc/mail/; make restart 234 235 A sendmail patch is coming, at which time this file will be 236 updated. 237 23820150601: 239 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 240 defined in symlink(7); previously symlinks were silently ignored. 241 24220150430: 243 The const qualifier has been removed from iconv(3) to comply with 244 POSIX. The ports tree is aware of this from r384038 onwards. 245 24620141215: 247 At svn r275807, The default linux compat kernel ABI has been adjusted 248 to 2.6.18 in support of the linux-c6 compat ports infrastructure 249 update. If you wish to continue using the linux-f10 compat ports, 250 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 251 encouraged to update their linux-compat packages to linux-c6 during 252 their next update cycle. 253 254 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 255 25620141205: 257 pjdfstest has been integrated into kyua as an opt-in test suite. 258 Please see share/doc/pjdfstest/README for a more details on how to 259 execute it. 260 26120141118: 262 10.1-RELEASE. 263 26420140904: 265 The ofwfb driver, used to provide a graphics console on PowerPC when 266 using vt(4), no longer allows mmap() of all of physical memory. This 267 will prevent Xorg on PowerPC with some ATI graphics cards from 268 initializing properly unless x11-servers/xorg-server is updated to 269 1.12.4_8 or newer. 270 27120140831: 272 The libatf-c and libatf-c++ major versions were downgraded to 0 and 273 1 respectively to match the upstream numbers. They were out of 274 sync because, when they were originally added to FreeBSD, the 275 upstream versions were not respected. These libraries are private 276 and not yet built by default, so renumbering them should be a 277 non-issue. However, unclean source trees will yield broken test 278 programs once the operator executes "make delete-old-libs" after a 279 "make installworld". 280 281 Additionally, the atf-sh binary was made private by moving it into 282 /usr/libexec/. Already-built shell test programs will keep the 283 path to the old binary so they will break after "make delete-old" 284 is run. 285 286 If you are using WITH_TESTS=yes (not the default), wipe the object 287 tree and rebuild from scratch to prevent spurious test failures. 288 This is only needed once: the misnumbered libraries and misplaced 289 binaries have been added to OptionalObsoleteFiles.inc so they will 290 be removed during a clean upgrade. 291 29220140814: 293 The ixgbe tunables now match their sysctl counterparts, for example: 294 hw.ixgbe.enable_aim => hw.ix.enable_aim 295 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 296 29720140801: 298 The NFSv4.1 server committed by r269398 changes the internal 299 function call interfaces used between the NFS and krpc modules. 300 As such, __FreeBSD_version was bumped. 301 30220140729: 303 The default unbound configuration has been modified to address 304 issues with reverse lookups on networks that use private 305 address ranges. If you use the local_unbound service, run 306 "service local_unbound setup" as root to regenerate your 307 configuration, then "service local_unbound reload" to load the 308 new configuration. 309 31020140717: 311 It is no longer necessary to include the dwarf version in your DEBUG 312 options in your kernel config file. The bug that required it to be 313 placed in the config file has bene fixed. DEBUG should now just 314 contain -g. The build system will automatically update things 315 to do the right thing. 316 31720140715: 318 Several ABI breaking changes were merged to CTL and new iSCSI code. 319 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 320 iscsictl need to be rebuilt to work with a new kernel. 321 32220140708: 323 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 324 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 325 which differs from the behaviour controlled by this knob.) 326 32720140608: 328 On i386 and amd64 systems, the onifconsole flag is now set by default 329 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 330 as a login TTY if it is set in the bootloader as an active kernel 331 console. No changes in behavior should result otherwise. To revert to 332 the previous behavior, set ttyu0 to "off" in /etc/ttys. 333 33420140512: 335 Clang and llvm have been upgraded to 3.4.1 release. 336 33720140321: 338 Clang and llvm have been upgraded to 3.4 release. 339 34020140306: 341 If a Makefile in a tests/ directory was auto-generating a Kyuafile 342 instead of providing an explicit one, this would prevent such 343 Makefile from providing its own Kyuafile in the future during 344 NO_CLEAN builds. This has been fixed in the Makefiles but manual 345 intervention is needed to clean an objdir if you use NO_CLEAN: 346 # find /usr/obj -name Kyuafile | xargs rm -f 347 34820140303: 349 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 350 capability mode support. Please note that enabling the feature in 351 kernel is still highly recommended. 352 35320140227: 354 OpenSSH is now built with sandbox support, and will use sandbox as 355 the default privilege separation method. This requires Capsicum 356 capability mode support in kernel. 357 35820140216: 359 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 360 been deprecated and will not be part of FreeBSD 11.0 and later 361 releases. If you use this driver, please consider switching to 362 the nfe(4) driver instead. 363 36420140120: 365 10.0-RELEASE. 366 36720131216: 368 The behavior of gss_pseudo_random() for the krb5 mechanism 369 has changed, for applications requesting a longer random string 370 than produced by the underlying enctype's pseudo-random() function. 371 In particular, the random string produced from a session key of 372 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 373 be different at the 17th octet and later, after this change. 374 The counter used in the PRF+ construction is now encoded as a 375 big-endian integer in accordance with RFC 4402. 376 __FreeBSD_version is bumped to 1000701. 377 37820131108: 379 The WITHOUT_ATF build knob has been removed and its functionality 380 has been subsumed into the more generic WITHOUT_TESTS. If you were 381 using the former to disable the build of the ATF libraries, you 382 should change your settings to use the latter. 383 38420131031: 385 The default version of mtree is nmtree which is obtained from 386 NetBSD. The output is generally the same, but may vary 387 slightly. If you found you need identical output adding 388 "-F freebsd9" to the command line should do the trick. For the 389 time being, the old mtree is available as fmtree. 390 39120131014: 392 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 393 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 394 1.1.4_8 and verify bsdyml not linked in, before running "make 395 delete-old-libs": 396 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 397 or 398 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 399 40020131010: 401 The rc.d/jail script has been updated to support jail(8) 402 configuration file. The "jail_<jname>_*" rc.conf(5) variables 403 for per-jail configuration are automatically converted to 404 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 405 This is transparently backward compatible. See below about some 406 incompatibilities and rc.conf(5) manual page for more details. 407 408 These variables are now deprecated in favor of jail(8) configuration 409 file. One can use "rc.d/jail config <jname>" command to generate 410 a jail(8) configuration file in /var/run/jail.<jname>.conf without 411 running the jail(8) utility. The default pathname of the 412 configuration file is /etc/jail.conf and can be specified by 413 using $jail_conf or $jail_<jname>_conf variables. 414 415 Please note that jail_devfs_ruleset accepts an integer at 416 this moment. Please consider to rewrite the ruleset name 417 with an integer. 418 41920130930: 420 BIND has been removed from the base system. If all you need 421 is a local resolver, simply enable and start the local_unbound 422 service instead. Otherwise, several versions of BIND are 423 available in the ports tree. The dns/bind99 port is one example. 424 425 With this change, nslookup(1) and dig(1) are no longer in the base 426 system. Users should instead use host(1) and drill(1) which are 427 in the base system. Alternatively, nslookup and dig can 428 be obtained by installing the dns/bind-tools port. 429 43020130916: 431 With the addition of unbound(8), a new unbound user is now 432 required during installworld. "mergemaster -p" can be used to 433 add the user prior to installworld, as documented in the handbook. 434 43520130911: 436 OpenSSH is now built with DNSSEC support, and will by default 437 silently trust signed SSHFP records. This can be controlled with 438 the VerifyHostKeyDNS client configuration setting. DNSSEC support 439 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 440 44120130906: 442 The GNU Compiler Collection and C++ standard library (libstdc++) 443 are no longer built by default on platforms where clang is the system 444 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 445 options in src.conf. 446 44720130905: 448 The PROCDESC kernel option is now part of the GENERIC kernel 449 configuration and is required for the rwhod(8) to work. 450 If you are using custom kernel configuration, you should include 451 'options PROCDESC'. 452 45320130905: 454 The API and ABI related to the Capsicum framework was modified 455 in backward incompatible way. The userland libraries and programs 456 have to be recompiled to work with the new kernel. This includes the 457 following libraries and programs, but the whole buildworld is 458 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 459 kdump, procstat, rwho, rwhod, uniq. 460 46120130903: 462 AES-NI intrinsic support has been added to gcc. The AES-NI module 463 has been updated to use this support. A new gcc is required to build 464 the aesni module on both i386 and amd64. 465 46620130821: 467 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 468 Thus "device padlock_rng" and "device rdrand_rng" should be 469 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 470 47120130813: 472 WITH_ICONV has been split into two feature sets. WITH_ICONV now 473 enables just the iconv* functionality and is now on by default. 474 WITH_LIBICONV_COMPAT enables the libiconv api and link time 475 compatability. Set WITHOUT_ICONV to build the old way. 476 If you have been using WITH_ICONV before, you will very likely 477 need to turn on WITH_LIBICONV_COMPAT. 478 47920130806: 480 INVARIANTS option now enables DEBUG for code with OpenSolaris and 481 Illumos origin, including ZFS. If you have INVARIANTS in your 482 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 483 explicitly. 484 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 485 locks if WITNESS option was set. Because that generated a lot of 486 witness(9) reports and all of them were believed to be false 487 positives, this is no longer done. New option OPENSOLARIS_WITNESS 488 can be used to achieve the previous behavior. 489 49020130806: 491 Timer values in IPv6 data structures now use time_uptime instead 492 of time_second. Although this is not a user-visible functional 493 change, userland utilities which directly use them---ndp(8), 494 rtadvd(8), and rtsold(8) in the base system---need to be updated 495 to r253970 or later. 496 49720130802: 498 find -delete can now delete the pathnames given as arguments, 499 instead of only files found below them or if the pathname did 500 not contain any slashes. Formerly, the following error message 501 would result: 502 503 find: -delete: <path>: relative path potentially not safe 504 505 Deleting the pathnames given as arguments can be prevented 506 without error messages using -mindepth 1 or by changing 507 directory and passing "." as argument to find. This works in the 508 old as well as the new version of find. 509 51020130726: 511 Behavior of devfs rules path matching has been changed. 512 Pattern is now always matched against fully qualified devfs 513 path and slash characters must be explicitly matched by 514 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 515 subdirectories must be reviewed. 516 51720130716: 518 The default ARM ABI has changed to the ARM EABI. The old ABI is 519 incompatible with the ARM EABI and all programs and modules will 520 need to be rebuilt to work with a new kernel. 521 522 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 523 524 NOTE: Support for the old ABI will be removed in the future and 525 users are advised to upgrade. 526 52720130709: 528 pkg_install has been disconnected from the build if you really need it 529 you should add WITH_PKGTOOLS in your src.conf(5). 530 53120130709: 532 Most of network statistics structures were changed to be able 533 keep 64-bits counters. Thus all tools, that work with networking 534 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 535 53620130629: 537 Fix targets that run multiple make's to use && rather than ; 538 so that subsequent steps depend on success of previous. 539 540 NOTE: if building 'universe' with -j* on stable/8 or stable/9 541 it would be better to start the build using bmake, to avoid 542 overloading the machine. 543 54420130618: 545 Fix a bug that allowed a tracing process (e.g. gdb) to write 546 to a memory-mapped file in the traced process's address space 547 even if neither the traced process nor the tracing process had 548 write access to that file. 549 55020130615: 551 CVS has been removed from the base system. An exact copy 552 of the code is available from the devel/cvs port. 553 55420130613: 555 Some people report the following error after the switch to bmake: 556 557 make: illegal option -- J 558 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 559 ... 560 *** [buildworld] Error code 2 561 562 this likely due to an old instance of make in 563 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 564 which src/Makefile will use that blindly, if it exists, so if 565 you see the above error: 566 567 rm -rf `make -V MAKEPATH` 568 569 should resolve it. 570 57120130516: 572 Use bmake by default. 573 Whereas before one could choose to build with bmake via 574 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 575 make. The goal is to remove these knobs for 10-RELEASE. 576 577 It is worth noting that bmake (like gmake) treats the command 578 line as the unit of failure, rather than statements within the 579 command line. Thus '(cd some/where && dosomething)' is safer 580 than 'cd some/where; dosomething'. The '()' allows consistent 581 behavior in parallel build. 582 58320130429: 584 Fix a bug that allows NFS clients to issue READDIR on files. 585 58620130426: 587 The WITHOUT_IDEA option has been removed because 588 the IDEA patent expired. 589 59020130426: 591 The sysctl which controls TRIM support under ZFS has been renamed 592 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 593 enabled by default. 594 59520130425: 596 The mergemaster command now uses the default MAKEOBJDIRPREFIX 597 rather than creating it's own in the temporary directory in 598 order allow access to bootstrapped versions of tools such as 599 install and mtree. When upgrading from version of FreeBSD where 600 the install command does not support -l, you will need to 601 install a new mergemaster command if mergemaster -p is required. 602 This can be accomplished with the command (cd src/usr.sbin/mergemaster 603 && make install). 604 60520130404: 606 Legacy ATA stack, disabled and replaced by new CAM-based one since 607 FreeBSD 9.0, completely removed from the sources. Kernel modules 608 atadisk and atapi*, user-level tools atacontrol and burncd are 609 removed. Kernel option `options ATA_CAM` is now permanently enabled 610 and removed. 611 61220130319: 613 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 614 and socketpair(2). Software, in particular Kerberos, may 615 automatically detect and use these during building. The resulting 616 binaries will not work on older kernels. 617 61820130308: 619 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 620 information, see the respective 20130304 entry). 621 62220130304: 623 Recent commits to callout(9) changed the size of struct callout, 624 so the KBI is probably heavily disturbed. Also, some functions 625 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 626 by macros. Every kernel module using it won't load, so rebuild 627 is requested. 628 629 The ctl device has been re-enabled in GENERIC for i386 and amd64, 630 but does not initialize by default (because of the new CTL_DISABLE 631 option) to save memory. To re-enable it, remove the CTL_DISABLE 632 option from the kernel config file or set kern.cam.ctl.disable=0 633 in /boot/loader.conf. 634 63520130301: 636 The ctl device has been disabled in GENERIC for i386 and amd64. 637 This was done due to the extra memory being allocated at system 638 initialisation time by the ctl driver which was only used if 639 a CAM target device was created. This makes a FreeBSD system 640 unusable on 128MB or less of RAM. 641 64220130208: 643 A new compression method (lz4) has been merged to -HEAD. Please 644 refer to zpool-features(7) for more information. 645 646 Please refer to the "ZFS notes" section of this file for information 647 on upgrading boot ZFS pools. 648 64920130129: 650 A BSD-licensed patch(1) variant has been added and is installed 651 as bsdpatch, being the GNU version the default patch. 652 To inverse the logic and use the BSD-licensed one as default, 653 while having the GNU version installed as gnupatch, rebuild 654 and install world with the WITH_BSD_PATCH knob set. 655 65620130121: 657 Due to the use of the new -l option to install(1) during build 658 and install, you must take care not to directly set the INSTALL 659 make variable in your /etc/make.conf, /etc/src.conf, or on the 660 command line. If you wish to use the -C flag for all installs 661 you may be able to add INSTALL+=-C to /etc/make.conf or 662 /etc/src.conf. 663 66420130118: 665 The install(1) option -M has changed meaning and now takes an 666 argument that is a file or path to append logs to. In the 667 unlikely event that -M was the last option on the command line 668 and the command line contained at least two files and a target 669 directory the first file will have logs appended to it. The -M 670 option served little practical purpose in the last decade so its 671 use is expected to be extremely rare. 672 67320121223: 674 After switching to Clang as the default compiler some users of ZFS 675 on i386 systems started to experience stack overflow kernel panics. 676 Please consider using 'options KSTACK_PAGES=4' in such configurations. 677 67820121222: 679 GEOM_LABEL now mangles label names read from file system metadata. 680 Mangling affect labels containing spaces, non-printable characters, 681 '%' or '"'. Device names in /etc/fstab and other places may need to 682 be updated. 683 68420121217: 685 By default, only the 10 most recent kernel dumps will be saved. To 686 restore the previous behaviour (no limit on the number of kernel dumps 687 stored in the dump directory) add the following line to /etc/rc.conf: 688 689 savecore_flags="" 690 69120121201: 692 With the addition of auditdistd(8), a new auditdistd user is now 693 required during installworld. "mergemaster -p" can be used to 694 add the user prior to installworld, as documented in the handbook. 695 69620121117: 697 The sin6_scope_id member variable in struct sockaddr_in6 is now 698 filled by the kernel before passing the structure to the userland via 699 sysctl or routing socket. This means the KAME-specific embedded scope 700 id in sin6_addr.s6_addr[2] is always cleared in userland application. 701 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 702 __FreeBSD_version is bumped to 1000025. 703 70420121105: 705 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 706 This means that the world and kernel will be compiled with clang 707 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 708 and /usr/bin/cpp. To disable this behavior and revert to building 709 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 710 of current may need to bootstrap WITHOUT_CLANG first if the clang 711 build fails (its compatibility window doesn't extend to the 9 stable 712 branch point). 713 71420121102: 715 The IPFIREWALL_FORWARD kernel option has been removed. Its 716 functionality now turned on by default. 717 71820121023: 719 The ZERO_COPY_SOCKET kernel option has been removed and 720 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 721 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 722 mechanism which is not safe and may result in kernel crashes. 723 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 724 driver supports disposeable external page sized mbuf storage. 725 Proper replacements for both zero-copy mechanisms are under 726 consideration and will eventually lead to complete removal 727 of the two kernel options. 728 72920121023: 730 The IPv4 network stack has been converted to network byte 731 order. The following modules need to be recompiled together 732 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 733 pf(4), ipfw(4), ng_ipfw(4), stf(4). 734 73520121022: 736 Support for non-MPSAFE filesystems was removed from VFS. The 737 VFS_VERSION was bumped, all filesystem modules shall be 738 recompiled. 739 74020121018: 741 All the non-MPSAFE filesystems have been disconnected from 742 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 743 portalfs, smbfs, xfs. 744 74520121016: 746 The interface cloning API and ABI has changed. The following 747 modules need to be recompiled together with kernel: 748 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 749 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 750 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 751 75220121015: 753 The sdhci driver was split in two parts: sdhci (generic SD Host 754 Controller logic) and sdhci_pci (actual hardware driver). 755 No kernel config modifications are required, but if you 756 load sdhc as a module you must switch to sdhci_pci instead. 757 75820121014: 759 Import the FUSE kernel and userland support into base system. 760 76120121013: 762 The GNU sort(1) program has been removed since the BSD-licensed 763 sort(1) has been the default for quite some time and no serious 764 problems have been reported. The corresponding WITH_GNU_SORT 765 knob has also gone. 766 76720121006: 768 The pfil(9) API/ABI for AF_INET family has been changed. Packet 769 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 770 with new kernel. 771 77220121001: 773 The net80211(4) ABI has been changed to allow for improved driver 774 PS-POLL and power-save support. All wireless drivers need to be 775 recompiled to work with the new kernel. 776 77720120913: 778 The random(4) support for the VIA hardware random number 779 generator (`PADLOCK') is no longer enabled unconditionally. 780 Add the padlock_rng device in the custom kernel config if 781 needed. The GENERIC kernels on i386 and amd64 do include the 782 device, so the change only affects the custom kernel 783 configurations. 784 78520120908: 786 The pf(4) packet filter ABI has been changed. pfctl(8) and 787 snmp_pf module need to be recompiled to work with new kernel. 788 78920120828: 790 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 791 to -HEAD. Pools that have empty_bpobj in active state can not be 792 imported read-write with ZFS implementations that do not support 793 this feature. For more information read the zpool-features(5) 794 manual page. 795 79620120727: 797 The sparc64 ZFS loader has been changed to no longer try to auto- 798 detect ZFS providers based on diskN aliases but now requires these 799 to be explicitly listed in the OFW boot-device environment variable. 800 80120120712: 802 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 803 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 804 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 805 80620120712: 807 The following sysctls and tunables have been renamed for consistency 808 with other variables: 809 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 810 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 811 81220120628: 813 The sort utility has been replaced with BSD sort. For now, GNU sort 814 is also available as "gnusort" or the default can be set back to 815 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 816 installed as "bsdsort". 817 81820120611: 819 A new version of ZFS (pool version 5000) has been merged to -HEAD. 820 Starting with this version the old system of ZFS pool versioning 821 is superseded by "feature flags". This concept enables forward 822 compatibility against certain future changes in functionality of ZFS 823 pools. The first read-only compatible "feature flag" for ZFS pools 824 is named "com.delphix:async_destroy". For more information 825 read the new zpool-features(5) manual page. 826 Please refer to the "ZFS notes" section of this file for information 827 on upgrading boot ZFS pools. 828 82920120417: 830 The malloc(3) implementation embedded in libc now uses sources imported 831 as contrib/jemalloc. The most disruptive API change is to 832 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 833 delete it prior to installworld, and optionally re-create it using the 834 new format after rebooting. See malloc.conf(5) for details 835 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 836 NAMESPACE section). 837 83820120328: 839 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 840 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 841 now spelled mips. This is to aid compatibility with third-party 842 software that expects this naming scheme in uname(3). Little-endian 843 settings are unchanged. If you are updating a big-endian mips64 machine 844 from before this change, you may need to set MACHINE_ARCH=mips64 in 845 your environment before the new build system will recognize your machine. 846 84720120306: 848 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 849 platforms. 850 85120120229: 852 Now unix domain sockets behave "as expected" on nullfs(5). Previously 853 nullfs(5) did not pass through all behaviours to the underlying layer, 854 as a result if we bound to a socket on the lower layer we could connect 855 only to the lower path; if we bound to the upper layer we could connect 856 only to the upper path. The new behavior is one can connect to both the 857 lower and the upper paths regardless what layer path one binds to. 858 85920120211: 860 The getifaddrs upgrade path broken with 20111215 has been restored. 861 If you have upgraded in between 20111215 and 20120209 you need to 862 recompile libc again with your kernel. You still need to recompile 863 world to be able to configure CARP but this restriction already 864 comes from 20111215. 865 86620120114: 867 The set_rcvar() function has been removed from /etc/rc.subr. All 868 base and ports rc.d scripts have been updated, so if you have a 869 port installed with a script in /usr/local/etc/rc.d you can either 870 hand-edit the rcvar= line, or reinstall the port. 871 872 An easy way to handle the mass-update of /etc/rc.d: 873 rm /etc/rc.d/* && mergemaster -i 874 87520120109: 876 panic(9) now stops other CPUs in the SMP systems, disables interrupts 877 on the current CPU and prevents other threads from running. 878 This behavior can be reverted using the kern.stop_scheduler_on_panic 879 tunable/sysctl. 880 The new behavior can be incompatible with kern.sync_on_panic. 881 88220111215: 883 The carp(4) facility has been changed significantly. Configuration 884 of the CARP protocol via ifconfig(8) has changed, as well as format 885 of CARP events submitted to devd(8) has changed. See manual pages 886 for more information. The arpbalance feature of carp(4) is currently 887 not supported anymore. 888 889 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 890 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 891 need to be recompiled. 892 89320111122: 894 The acpi_wmi(4) status device /dev/wmistat has been renamed to 895 /dev/wmistat0. 896 89720111108: 898 The option VFS_ALLOW_NONMPSAFE option has been added in order to 899 explicitely support non-MPSAFE filesystems. 900 It is on by default for all supported platform at this present 901 time. 902 90320111101: 904 The broken amd(4) driver has been replaced with esp(4) in the amd64, 905 i386 and pc98 GENERIC kernel configuration files. 906 90720110930: 908 sysinstall has been removed 909 91020110923: 911 The stable/9 branch created in subversion. This corresponds to the 912 RELENG_9 branch in CVS. 913 91420110913: 915 This commit modifies vfs_register() so that it uses a hash 916 calculation to set vfc_typenum, which is enabled by default. 917 The first time a system is booted after this change, the 918 vfc_typenum values will change for all file systems. The 919 main effect of this is a change to the NFS server file handles 920 for file systems that use vfc_typenum in their fsid, such as ZFS. 921 It will, however, prevent vfc_typenum from changing when file 922 systems are loaded in a different order for subsequent reboots. 923 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 924 until you are ready to remount all NFS clients after a reboot. 925 92620110828: 927 Bump the shared library version numbers for libraries that 928 do not use symbol versioning, have changed the ABI compared 929 to stable/8 and which shared library version was not bumped. 930 Done as part of 9.0-RELEASE cycle. 931 93220110815: 933 During the merge of Capsicum features, the fget(9) KPI was modified. 934 This may require the rebuilding of out-of-tree device drivers -- 935 issues have been reported specifically with the nVidia device driver. 936 __FreeBSD_version is bumped to 900041. 937 938 Also, there is a period between 20110811 and 20110814 where the 939 special devices /dev/{stdin,stdout,stderr} did not work correctly. 940 Building world from a kernel during that window may not work. 941 94220110628: 943 The packet filter (pf) code has been updated to OpenBSD 4.5. 944 You need to update userland tools to be in sync with kernel. 945 This update breaks backward compatibility with earlier pfsync(4) 946 versions. Care must be taken when updating redundant firewall setups. 947 94820110608: 949 The following sysctls and tunables are retired on x86 platforms: 950 machdep.hlt_cpus 951 machdep.hlt_logical_cpus 952 The following sysctl is retired: 953 machdep.hyperthreading_allowed 954 The sysctls were supposed to provide a way to dynamically offline and 955 online selected CPUs on x86 platforms, but the implementation has not 956 been reliable especially with SCHED_ULE scheduler. 957 machdep.hyperthreading_allowed tunable is still available to ignore 958 hyperthreading CPUs at OS level. 959 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 960 where X is an APIC ID of a CPU. Be advised, though, that disabling 961 CPUs in non-uniform fashion will result in non-uniform topology and 962 may lead to sub-optimal system performance with SCHED_ULE, which is 963 a default scheduler. 964 96520110607: 966 cpumask_t type is retired and cpuset_t is used in order to describe 967 a mask of CPUs. 968 96920110531: 970 Changes to ifconfig(8) for dynamic address family detection mandate 971 that you are running a kernel of 20110525 or later. Make sure to 972 follow the update procedure to boot a new kernel before installing 973 world. 974 97520110513: 976 Support for sun4v architecture is officially dropped 977 97820110503: 979 Several KPI breaking changes have been committed to the mii(4) layer, 980 the PHY drivers and consequently some Ethernet drivers using mii(4). 981 This means that miibus.ko and the modules of the affected Ethernet 982 drivers need to be recompiled. 983 984 Note to kernel developers: Given that the OUI bit reversion problem 985 was fixed as part of these changes all mii(4) commits related to OUIs, 986 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 987 handling, no longer can be merged verbatim to stable/8 and previous 988 branches. 989 99020110430: 991 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 992 into their kernel configurations along with 'device pci'. 993 99420110427: 995 The default NFS client is now the new NFS client, so fstype "newnfs" 996 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 997 Although mounts via fstype "nfs" will usually work without userland 998 changes, it is recommended that the mount(8) and mount_nfs(8) 999 commands be rebuilt from sources and that a link to mount_nfs called 1000 mount_oldnfs be created. The new client is compiled into the 1001 kernel with "options NFSCL" and this is needed for diskless root 1002 file systems. The GENERIC kernel configs have been changed to use 1003 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 1004 To use the regular/old client, you can "mount -t oldnfs ...". For 1005 a diskless root file system, you must also include a line like: 1006 1007 vfs.root.mountfrom="oldnfs:" 1008 1009 in the boot/loader.conf on the root fs on the NFS server to make 1010 a diskless root fs use the old client. 1011 101220110424: 1013 The GENERIC kernels for all architectures now default to the new 1014 CAM-based ATA stack. It means that all legacy ATA drivers were 1015 removed and replaced by respective CAM drivers. If you are using 1016 ATA device names in /etc/fstab or other places, make sure to update 1017 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 1018 where 'Y's are the sequential numbers starting from zero for each type 1019 in order of detection, unless configured otherwise with tunables, 1020 see cam(4)). There will be symbolic links created in /dev/ to map 1021 old adX devices to the respective adaY. They should provide basic 1022 compatibility for file systems mounting in most cases, but they do 1023 not support old user-level APIs and do not have respective providers 1024 in GEOM. Consider using updated management tools with new device names. 1025 1026 It is possible to load devices ahci, ata, siis and mvs as modules, 1027 but option ATA_CAM should remain in kernel configuration to make ata 1028 module work as CAM driver supporting legacy ATA controllers. Device ata 1029 still can be used in modular fashion (atacore + ...). Modules atadisk 1030 and atapi* are not used and won't affect operation in ATA_CAM mode. 1031 Note that to use CAM-based ATA kernel should include CAM devices 1032 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1033 them are parts of the cam module. 1034 1035 ataraid(4) functionality is now supported by the RAID GEOM class. 1036 To use it you can load geom_raid kernel module and use graid(8) tool 1037 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1038 1039 No kernel config options or code have been removed, so if a problem 1040 arises, please report it and optionally revert to the old ATA stack. 1041 In order to do it you can remove from the kernel config: 1042 options ATA_CAM 1043 device ahci 1044 device mvs 1045 device siis 1046 , and instead add back: 1047 device atadisk # ATA disk drives 1048 device ataraid # ATA RAID drives 1049 device atapicd # ATAPI CDROM drives 1050 device atapifd # ATAPI floppy drives 1051 device atapist # ATAPI tape drives 1052 105320110423: 1054 The default NFS server has been changed to the new server, which 1055 was referred to as the experimental server. If you need to switch 1056 back to the old NFS server, you must now put the "-o" option on 1057 both the mountd and nfsd commands. This can be done using the 1058 mountd_flags and nfs_server_flags rc.conf variables until an 1059 update to the rc scripts is committed, which is coming soon. 1060 106120110418: 1062 The GNU Objective-C runtime library (libobjc), and other Objective-C 1063 related components have been removed from the base system. If you 1064 require an Objective-C library, please use one of the available ports. 1065 106620110331: 1067 ath(4) has been split into bus- and device- modules. if_ath contains 1068 the HAL, the TX rate control and the network device code. if_ath_pci 1069 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1070 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1071 in order to use ath on everything else. 1072 1073 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1074 need to load if_ath and if_ath_pci for ath(4) operation. 1075 107620110314: 1077 As part of the replacement of sysinstall, the process of building 1078 release media has changed significantly. For details, please re-read 1079 release(7), which has been updated to reflect the new build process. 1080 108120110218: 1082 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1083 is the last available version under GPLv2. It brings a number of new 1084 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1085 4.1 and SSE 4.2), better support for powerpc64, a number of new 1086 directives, and lots of other small improvements. See the ChangeLog 1087 file in contrib/binutils for the full details. 1088 108920110218: 1090 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1091 compliant, and will now use half of hash for authentication. 1092 This will break interoperability with all stacks (including all 1093 actual FreeBSD versions) who implement 1094 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1095 authentication). 1096 The only workaround with such peers is to use another HMAC 1097 algorithm for IPsec ("phase 2") authentication. 1098 109920110207: 1100 Remove the uio_yield prototype and symbol. This function has 1101 been misnamed since it was introduced and should not be 1102 globally exposed with this name. The equivalent functionality 1103 is now available using kern_yield(curthread->td_user_pri). 1104 The function remains undocumented. 1105 110620110112: 1107 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1108 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1109 for scalar sysctls is defined but disabled. Code that needs 1110 UQUAD to pass the type checking that must compile on older 1111 systems where the define is not present can check against 1112 __FreeBSD_version >= 900030. 1113 1114 The system dialog(1) has been replaced with a new version previously 1115 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1116 with the previous version, but the libdialog associated with it has 1117 a largely incompatible API. As such, the original version of libdialog 1118 will be kept temporarily as libodialog, until its base system consumers 1119 are replaced or updated. Bump __FreeBSD_version to 900030. 1120 112120110103: 1122 If you are trying to run make universe on a -stable system, and you get 1123 the following warning: 1124 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1125 unknown. config(8) likely too old." 1126 or something similar to it, then you must upgrade your -stable system 1127 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1128 stable/8) or build the config from the latest stable/8 branch and 1129 install it on your system. 1130 1131 Prior to this date, building a current universe on 8-stable system from 1132 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1133 error in the first kernel build phase. A new config on those old 1134 systems will fix that problem for older versions of -current. 1135 113620101228: 1137 The TCP stack has been modified to allow Khelp modules to interact with 1138 it via helper hook points and store per-connection data in the TCP 1139 control block. Bump __FreeBSD_version to 900029. User space tools that 1140 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1141 be recompiled. 1142 114320101114: 1144 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1145 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1146 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1147 to take advantage of it instead of using custom implementations. This 1148 means that these drivers now no longer unconditionally advertise 1149 support for flow control but only do so if flow control is a selected 1150 media option. This was implemented in the generic support that way in 1151 order to allow flow control to be switched on and off via ifconfig(8) 1152 with the PHY specific default to typically off in order to protect 1153 from unwanted effects. Consequently, if you used flow control with 1154 one of the above mentioned drivers you now need to explicitly enable 1155 it, for example via: 1156 ifconfig bge0 media auto mediaopt flowcontrol 1157 1158 Along with the above mentioned changes generic support for setting 1159 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1160 e1000phy(4) as well as ip1000phy(4) have been converted to take 1161 advantage of it. This means that these drivers now no longer take the 1162 link0 parameter for selecting master mode but the master media option 1163 has to be used instead, for example like in the following: 1164 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1165 1166 Selection of master mode now is also available with all other PHY 1167 drivers supporting 1000baseT. 1168 116920101111: 1170 The TCP stack has received a significant update to add support for 1171 modularised congestion control and generally improve the clarity of 1172 congestion control decisions. Bump __FreeBSD_version to 900025. User 1173 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1174 sockstat) need to be recompiled. 1175 117620101002: 1177 The man(1) utility has been replaced by a new version that no longer 1178 uses /etc/manpath.config. Please consult man.conf(5) for how to 1179 migrate local entries to the new format. 1180 118120100928: 1182 The copyright strings printed by login(1) and sshd(8) at the time of a 1183 new connection have been removed to follow other operating systems and 1184 upstream sshd. 1185 118620100915: 1187 A workaround for a fixed ld bug has been removed in kernel code, 1188 so make sure that your system ld is built from sources after 1189 revision 210245 from 2010-07-19 (r211583 if building head kernel 1190 on stable/8, r211584 for stable/7; both from 2010-08-21). 1191 A symptom of incorrect ld version is different addresses for 1192 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1193 119420100913: 1195 The $ipv6_prefer variable in rc.conf(5) has been split into 1196 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1197 1198 The $ip6addrctl_policy is a variable to choose a pre-defined 1199 address selection policy set by ip6addrctl(8). A value 1200 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1201 default is "AUTO". 1202 1203 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1204 flag (see an entry of 20090926) is set on an interface with no 1205 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1206 security reason. If you want IPv6 link-local address on all 1207 interfaces by default, set this to "YES". 1208 1209 The old ipv6_prefer="YES" is equivalent to 1210 ipv6_activate_all_interfaces="YES" and 1211 ip6addrctl_policy="ipv6_prefer". 1212 121320100913: 1214 DTrace has grown support for userland tracing. Due to this, DTrace is 1215 now i386 and amd64 only. 1216 dtruss(1) is now installed by default on those systems and a new 1217 kernel module is needed for userland tracing: fasttrap. 1218 No changes to your kernel config file are necessary to enable 1219 userland tracing, but you might consider adding 'STRIP=' and 1220 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1221 to have informative userland stack traces in DTrace (ustack). 1222 122320100725: 1224 The acpi_aiboost(4) driver has been removed in favor of the new 1225 aibs(4) driver. You should update your kernel configuration file. 1226 122720100722: 1228 BSD grep has been imported to the base system and it is built by 1229 default. It is completely BSD licensed, highly GNU-compatible, uses 1230 less memory than its GNU counterpart and has a small codebase. 1231 However, it is slower than its GNU counterpart, which is mostly 1232 noticeable for larger searches, for smaller ones it is measurable 1233 but not significant. The reason is complex, the most important factor 1234 is that we lack a modern and efficient regex library and GNU 1235 overcomes this by optimizing the searches internally. Future work 1236 on improving the regex performance is planned, for the meantime, 1237 users that need better performance, can build GNU grep instead by 1238 setting the WITH_GNU_GREP knob. 1239 124020100713: 1241 Due to the import of powerpc64 support, all existing powerpc kernel 1242 configuration files must be updated with a machine directive like this: 1243 machine powerpc powerpc 1244 1245 In addition, an updated config(8) is required to build powerpc kernels 1246 after this change. 1247 124820100713: 1249 A new version of ZFS (version 15) has been merged to -HEAD. 1250 This version uses a python library for the following subcommands: 1251 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1252 For full functionality of these commands the following port must 1253 be installed: sysutils/py-zfs 1254 125520100429: 1256 'vm_page's are now hashed by physical address to an array of mutexes. 1257 Currently this is only used to serialize access to hold_count. Over 1258 time the page queue mutex will be peeled away. This changes the size 1259 of pmap on every architecture. And requires all callers of vm_page_hold 1260 and vm_page_unhold to be updated. 1261 126220100402: 1263 WITH_CTF can now be specified in src.conf (not recommended, there 1264 are some problems with static executables), make.conf (would also 1265 affect ports which do not use GNU make and do not override the 1266 compile targets) or in the kernel config (via "makeoptions 1267 WITH_CTF=yes"). 1268 When WITH_CTF was specified there before this was silently ignored, 1269 so make sure that WITH_CTF is not used in places which could lead 1270 to unwanted behavior. 1271 127220100311: 1273 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1274 to allow 32-bit compatibility on non-x86 platforms. All kernel 1275 configurations on amd64 and ia64 platforms using these options must 1276 be modified accordingly. 1277 127820100113: 1279 The utmp user accounting database has been replaced with utmpx, 1280 the user accounting interface standardized by POSIX. 1281 Unfortunately the semantics of utmp and utmpx don't match, 1282 making it practically impossible to support both interfaces. 1283 The user accounting database is used by tools like finger(1), 1284 last(1), talk(1), w(1) and ac(8). 1285 1286 All applications in the base system use utmpx. This means only 1287 local binaries (e.g. from the ports tree) may still use these 1288 utmp database files. These applications must be rebuilt to make 1289 use of utmpx. 1290 1291 After the system has been upgraded, it is safe to remove the old 1292 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1293 assuming their contents is of no importance anymore. Old wtmp 1294 databases can only be used by last(1) and ac(8) after they have 1295 been converted to the new format using wtmpcvt(1). 1296 129720100108: 1298 Introduce the kernel thread "deadlock resolver" (which can be enabled 1299 via the DEADLKRES option, see NOTES for more details) and the 1300 sleepq_type() function for sleepqueues. 1301 130220091202: 1303 The rc.firewall and rc.firewall6 were unified, and 1304 rc.firewall6 and rc.d/ip6fw were removed. 1305 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1306 variables are obsoleted. Instead, the following new rc 1307 variables are added to rc.d/ipfw: 1308 1309 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1310 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1311 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1312 1313 The meanings correspond to the relevant IPv4 variables. 1314 131520091125: 1316 8.0-RELEASE. 1317 131820091113: 1319 The default terminal emulation for syscons(4) has been changed 1320 from cons25 to xterm on all platforms except pc98. This means 1321 that the /etc/ttys file needs to be updated to ensure correct 1322 operation of applications on the console. 1323 1324 The terminal emulation style can be toggled per window by using 1325 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1326 options can be used to change the compile-time default back to 1327 cons25. 1328 1329 To prevent graphical artifacts, make sure the TERM environment 1330 variable is set to match the terminal emulation that is being 1331 performed by syscons(4). 1332 133320091109: 1334 The layout of the structure ieee80211req_scan_result has changed. 1335 Applications that require wireless scan results (e.g. ifconfig(8)) 1336 from net80211 need to be recompiled. 1337 1338 Applications such as wpa_supplicant(8) may require a full world 1339 build without using NO_CLEAN in order to get synchronized with the 1340 new structure. 1341 134220091025: 1343 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1344 There's one kernel module for each firmware. Adding "device iwnfw" 1345 to the kernel configuration file means including all three firmware 1346 images inside the kernel. If you want to include just the one for 1347 your wireless card, use the devices iwn4965fw, iwn5000fw or 1348 iwn5150fw. 1349 135020090926: 1351 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1352 into rc.d/netif. The changes are the following: 1353 1354 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1355 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1356 Note that both variables need the "inet6" keyword at the head. 1357 1358 Do not set $ipv6_network_interfaces manually if you do not 1359 understand what you are doing. It is not needed in most cases. 1360 1361 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1362 they are obsolete. 1363 1364 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1365 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1366 1367 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1368 all configured interfaces have "inet6 accept_rtadv" in the 1369 $ifconfig_IF_ipv6. These are for backward compatibility. 1370 1371 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1372 functionality of interfaces with no corresponding 1373 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1374 and the default address selection policy of ip6addrctl(8) 1375 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1376 Note that if you want to configure IPv6 functionality on the 1377 disabled interfaces after boot, first you need to clear the flag by 1378 using ifconfig(8) like: 1379 1380 ifconfig em0 inet6 -ifdisabled 1381 1382 If YES, the default address selection policy is set as 1383 IPv6-preferred. 1384 1385 The default value of $ipv6_prefer is NO. 1386 1387 4. If your system need to receive Router Advertisement messages, 1388 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1389 scripts automatically invoke rtsol(8) when the interface becomes 1390 UP. The Router Advertisement messages are used for SLAAC 1391 (State-Less Address AutoConfiguration). 1392 139320090922: 1394 802.11s D3.03 support was committed. This is incompatible with the 1395 previous code, which was based on D3.0. 1396 139720090912: 1398 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1399 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1400 control whether accepting Router Advertisement messages or not. 1401 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1402 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1403 The ifconfig(8) utility now supports these flags. 1404 140520090910: 1406 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1407 mount(8) and -a option for df(1) to see them. 1408 140920090825: 1410 The old tunable hw.bus.devctl_disable has been superseded by 1411 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1412 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1413 is 1000. 1414 141520090813: 1416 Remove the option STOP_NMI. The default action is now to use NMI only 1417 for KDB via the newly introduced function stop_cpus_hard() and 1418 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1419 142020090803: 1421 The stable/8 branch created in subversion. This corresponds to the 1422 RELENG_8 branch in CVS. 1423 142420090719: 1425 Bump the shared library version numbers for all libraries that do not 1426 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1427 __FreeBSD_version to 800105. 1428 142920090714: 1430 Due to changes in the implementation of virtual network stack support, 1431 all network-related kernel modules must be recompiled. As this change 1432 breaks the ABI, bump __FreeBSD_version to 800104. 1433 143420090713: 1435 The TOE interface to the TCP syncache has been modified to remove 1436 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1437 The cxgb driver is the only TOE consumer affected by this change, and 1438 needs to be recompiled along with the kernel. As this change breaks 1439 the ABI, bump __FreeBSD_version to 800103. 1440 144120090712: 1442 Padding has been added to struct tcpcb, sackhint and tcpstat in 1443 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1444 maintaining the ABI. However, this change breaks the ABI, so bump 1445 __FreeBSD_version to 800102. User space tools that rely on the size of 1446 any of these structs (e.g. sockstat) need to be recompiled. 1447 144820090630: 1449 The NFS_LEGACYRPC option has been removed along with the old kernel 1450 RPC implementation that this option selected. Kernel configurations 1451 may need to be adjusted. 1452 145320090629: 1454 The network interface device nodes at /dev/net/<interface> have been 1455 removed. All ioctl operations can be performed the normal way using 1456 routing sockets. The kqueue functionality can generally be replaced 1457 with routing sockets. 1458 145920090628: 1460 The documentation from the FreeBSD Documentation Project (Handbook, 1461 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1462 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1463 146420090624: 1465 The ABI of various structures related to the SYSV IPC API have been 1466 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1467 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1468 800100. 1469 147020090622: 1471 Layout of struct vnet has changed as routing related variables were 1472 moved to their own Vimage module. Modules need to be recompiled. Bump 1473 __FreeBSD_version to 800099. 1474 147520090619: 1476 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1477 respectively. As long as no more than 16 groups per process are used, 1478 no changes should be visible. When more than 16 groups are used, old 1479 binaries may fail if they call getgroups() or getgrouplist() with 1480 statically sized storage. Recompiling will work around this, but 1481 applications should be modified to use dynamically allocated storage 1482 for group arrays as POSIX.1-2008 does not cap an implementation's 1483 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1484 1485 NFS and portalfs mounts may also be affected as the list of groups is 1486 truncated to 16. Users of NFS who use more than 16 groups, should 1487 take care that negative group permissions are not used on the exported 1488 file systems as they will not be reliable unless a GSSAPI based 1489 authentication method is used. 1490 149120090616: 1492 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1493 option compiles in the support for adaptive spinning for lockmgrs 1494 which want to enable it. The lockinit() function now accepts the flag 1495 LK_ADAPTIVE in order to make the lock object subject to adaptive 1496 spinning when both held in write and read mode. 1497 149820090613: 1499 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1500 changed. User applications that use this ioctl need to be rebuilt. 1501 150220090611: 1503 The layout of struct thread has changed. Kernel and modules need to 1504 be rebuilt. 1505 150620090608: 1507 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1508 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1509 151020090602: 1511 window(1) has been removed from the base system. It can now be 1512 installed from ports. The port is called misc/window. 1513 151420090601: 1515 The way we are storing and accessing `routing table' entries has 1516 changed. Programs reading the FIB, like netstat, need to be 1517 re-compiled. 1518 151920090601: 1520 A new netisr implementation has been added for FreeBSD 8. Network 1521 file system modules, such as igmp, ipdivert, and others, should be 1522 rebuilt. 1523 Bump __FreeBSD_version to 800096. 1524 152520090530: 1526 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1527 more valid. 1528 152920090530: 1530 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1531 Bump __FreeBSD_version to 800094. 1532 153320090529: 1534 Add mnt_xflag field to 'struct mount'. File system modules need to be 1535 rebuilt. 1536 Bump __FreeBSD_version to 800093. 1537 153820090528: 1539 The compiling option ADAPTIVE_SX has been retired while it has been 1540 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1541 The KPI for sx_init_flags() changes as accepting flags: 1542 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1543 been introduced in order to handle the reversed logic. 1544 Bump __FreeBSD_version to 800092. 1545 154620090527: 1547 Add support for hierarchical jails. Remove global securelevel. 1548 Bump __FreeBSD_version to 800091. 1549 155020090523: 1551 The layout of struct vnet_net has changed, therefore modules 1552 need to be rebuilt. 1553 Bump __FreeBSD_version to 800090. 1554 155520090523: 1556 The newly imported zic(8) produces a new format in the output. Please 1557 run tzsetup(8) to install the newly created data to /etc/localtime. 1558 155920090520: 1560 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1561 hw.usb.* and is now consistent again with previous releases. 1562 156320090520: 1564 802.11 monitor mode support was revised and driver api's were changed. 1565 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1566 of DLT_IEEE802_11. No user-visible data structures were changed but 1567 applications that use DLT_IEEE802_11 may require changes. 1568 Bump __FreeBSD_version to 800088. 1569 157020090430: 1571 The layout of the following structs has changed: sysctl_oid, 1572 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1573 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1574 panics may be experienced. World rebuild is required for 1575 correctly checking networking state from userland. 1576 Bump __FreeBSD_version to 800085. 1577 157820090429: 1579 MLDv2 and Source-Specific Multicast (SSM) have been merged 1580 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1581 The implementation of SSM within FreeBSD's IPv6 stack closely 1582 follows the IPv4 implementation. 1583 1584 For kernel developers: 1585 1586 * The most important changes are that the ip6_output() and 1587 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1588 and this lock has been downgraded to a non-recursive mutex. 1589 1590 * As with the changes to the IPv4 stack to support SSM, filtering 1591 of inbound multicast traffic must now be performed by transport 1592 protocols within the IPv6 stack. This does not apply to TCP and 1593 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1594 1595 * The KPIs used by IPv6 multicast are similar to those used by 1596 the IPv4 stack, with the following differences: 1597 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1598 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1599 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1600 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1601 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1602 for MLDv1 have an additional 'timer' argument which is used to 1603 jitter the initial membership report for the solicited-node 1604 multicast membership on-link. 1605 * This is not strictly needed for MLDv2, which already jitters 1606 its report transmissions. However, the 'timer' argument is 1607 preserved in case MLDv1 is active on the interface. 1608 1609 * The KAME linked-list based IPv6 membership implementation has 1610 been refactored to use a vector similar to that used by the IPv4 1611 stack. 1612 Code which maintains a list of its own multicast memberships 1613 internally, e.g. carp, has been updated to reflect the new 1614 semantics. 1615 1616 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1617 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1618 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1619 implementation constraint which needs to be addressed in HEAD. 1620 1621 For application developers: 1622 1623 * The changes are broadly similar to those made for the IPv4 1624 stack. 1625 1626 * The use of IPv4 and IPv6 multicast socket options on the same 1627 socket, using mapped addresses, HAS NOT been tested or supported. 1628 1629 * There are a number of issues with the implementation of various 1630 IPv6 multicast APIs which need to be resolved in the API surface 1631 before the implementation is fully compatible with KAME userland 1632 use, and these are mostly to do with interface index treatment. 1633 1634 * The literature available discusses the use of either the delta / ASM 1635 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1636 using setsourcefilter(3)/getsourcefilter(3). For more information 1637 please refer to RFC 3768, 'Socket Interface Extensions for 1638 Multicast Source Filters'. 1639 1640 * Applications which use the published RFC 3678 APIs should be fine. 1641 1642 For systems administrators: 1643 1644 * The mtest(8) utility has been refactored to support IPv6, in 1645 addition to IPv4. Interface addresses are no longer accepted 1646 as arguments, their names must be used instead. The utility 1647 will map the interface name to its first IPv4 address as 1648 returned by getifaddrs(3). 1649 1650 * The ifmcstat(8) utility has also been updated to print the MLDv2 1651 endpoint state and source filter lists via sysctl(3). 1652 1653 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1654 loopback of IPv6 multicast datagrams by default; it defaults to 1 1655 to preserve the existing behaviour. Disabling multicast loopback is 1656 recommended for optimal system performance. 1657 1658 * The IPv6 MROUTING code has been changed to examine this sysctl 1659 instead of attempting to perform a group lookup before looping 1660 back forwarded datagrams. 1661 1662 Bump __FreeBSD_version to 800084. 1663 166420090422: 1665 Implement low-level Bluetooth HCI API. 1666 Bump __FreeBSD_version to 800083. 1667 166820090419: 1669 The layout of struct malloc_type, used by modules to register new 1670 memory allocation types, has changed. Most modules will need to 1671 be rebuilt or panics may be experienced. 1672 Bump __FreeBSD_version to 800081. 1673 167420090415: 1675 Anticipate overflowing inp_flags - add inp_flags2. 1676 This changes most offsets in inpcb, so checking v4 connection 1677 state will require a world rebuild. 1678 Bump __FreeBSD_version to 800080. 1679 168020090415: 1681 Add an llentry to struct route and struct route_in6. Modules 1682 embedding a struct route will need to be recompiled. 1683 Bump __FreeBSD_version to 800079. 1684 168520090414: 1686 The size of rt_metrics_lite and by extension rtentry has changed. 1687 Networking administration apps will need to be recompiled. 1688 The route command now supports show as an alias for get, weighting 1689 of routes, sticky and nostick flags to alter the behavior of stateful 1690 load balancing. 1691 Bump __FreeBSD_version to 800078. 1692 169320090408: 1694 Do not use Giant for kbdmux(4) locking. This is wrong and 1695 apparently causing more problems than it solves. This will 1696 re-open the issue where interrupt handlers may race with 1697 kbdmux(4) in polling mode. Typical symptoms include (but 1698 not limited to) duplicated and/or missing characters when 1699 low level console functions (such as gets) are used while 1700 interrupts are enabled (for example geli password prompt, 1701 mountroot prompt etc.). Disabling kbdmux(4) may help. 1702 170320090407: 1704 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1705 kernel modules referencing any of the above need to be recompiled. 1706 Bump __FreeBSD_version to 800075. 1707 170820090320: 1709 GEOM_PART has become the default partition slicer for storage devices, 1710 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1711 introduces some changes: 1712 1713 MSDOS/EBR: the devices created from MSDOS extended partition entries 1714 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1715 to devices with offset-based names. fstabs may need to be modified. 1716 1717 BSD: the "geometry does not match label" warning is harmless in most 1718 cases but it points to problems in file system misalignment with 1719 disk geometry. The "c" partition is now implicit, covers the whole 1720 top-level drive and cannot be (mis)used by users. 1721 1722 General: Kernel dumps are now not allowed to be written to devices 1723 whose partition types indicate they are meant to be used for file 1724 systems (or, in case of MSDOS partitions, as something else than 1725 the "386BSD" type). 1726 1727 Most of these changes date approximately from 200812. 1728 172920090319: 1730 The uscanner(4) driver has been removed from the kernel. This follows 1731 Linux removing theirs in 2.6 and making libusb the default interface 1732 (supported by sane). 1733 173420090319: 1735 The multicast forwarding code has been cleaned up. netstat(1) 1736 only relies on KVM now for printing bandwidth upcall meters. 1737 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1738 ip6_mroute_mod respectively. The config(5) options for statically 1739 compiling this code remain the same, i.e. 'options MROUTING'. 1740 174120090315: 1742 Support for the IFF_NEEDSGIANT network interface flag has been 1743 removed, which means that non-MPSAFE network device drivers are no 1744 longer supported. In particular, if_ar, if_sr, and network device 1745 drivers from the old (legacy) USB stack can no longer be built or 1746 used. 1747 174820090313: 1749 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1750 a bunch of new language catalog files have also been added. 1751 This means that some common libc messages are now localized and 1752 they depend on the LC_MESSAGES environmental variable. 1753 175420090313: 1755 The k8temp(4) driver has been renamed to amdtemp(4) since 1756 support for Family 10 and Family 11 CPU families was added. 1757 175820090309: 1759 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1760 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1761 1762 For kernel developers, the most important changes are that the 1763 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1764 and this lock has been downgraded to a non-recursive mutex. 1765 1766 Transport protocols (UDP, Raw IP) are now responsible for filtering 1767 inbound multicast traffic according to group membership and source 1768 filters. The imo_multicast_filter() KPI exists for this purpose. 1769 Transports which do not use multicast (SCTP, TCP) already reject 1770 multicast by default. Forwarding and receive performance may improve 1771 as a mutex acquisition is no longer needed in the ip_input() 1772 low-level input path. in_addmulti() and in_delmulti() are shimmed 1773 to new KPIs which exist to support SSM in-kernel. 1774 1775 For application developers, it is recommended that loopback of 1776 multicast datagrams be disabled for best performance, as this 1777 will still cause the lock to be taken for each looped-back 1778 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1779 be tuned to 0 to disable loopback by default; it defaults to 1 1780 to preserve the existing behaviour. 1781 1782 For systems administrators, to obtain best performance with 1783 multicast reception and multiple groups, it is always recommended 1784 that a card with a suitably precise hash filter is used. Hash 1785 collisions will still result in the lock being taken within the 1786 transport protocol input path to check group membership. 1787 1788 If deploying FreeBSD in an environment with IGMP snooping switches, 1789 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1790 enabled; this forces 224.0.0.0/24 group membership to be announced 1791 via IGMP. 1792 1793 The size of 'struct igmpstat' has changed; netstat needs to be 1794 recompiled to reflect this. 1795 Bump __FreeBSD_version to 800070. 1796 179720090309: 1798 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1799 updated to use it. This requires a buildworld/installworld in order to 1800 update the library and dependencies (usbconfig, etc). Its advisable to 1801 rebuild all ports which uses libusb. More specific directions are given 1802 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1803 libusb are no longer required and can be removed. 1804 180520090302: 1806 A workaround is committed to allow the creation of System V shared 1807 memory segment of size > 2 GB on the 64-bit architectures. 1808 Due to a limitation of the existing ABI, the shm_segsz member 1809 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1810 wrong for large segments. Note that limits must be explicitly 1811 raised to allow such segments to be created. 1812 181320090301: 1814 The layout of struct ifnet has changed, requiring a rebuild of all 1815 network device driver modules. 1816 181720090227: 1818 The /dev handling for the new USB stack has changed, a 1819 buildworld/installworld is required for libusb20. 1820 182120090223: 1822 The new USB2 stack has now been permanently moved in and all kernel and 1823 module names reverted to their previous values (eg, usb, ehci, ohci, 1824 ums, ...). The old usb stack can be compiled in by prefixing the name 1825 with the letter 'o', the old usb modules have been removed. 1826 Updating entry 20090216 for xorg and 20090215 for libmap may still 1827 apply. 1828 182920090217: 1830 The rc.conf(5) option if_up_delay has been renamed to 1831 defaultroute_delay to better reflect its purpose. If you have 1832 customized this setting in /etc/rc.conf you need to update it to 1833 use the new name. 1834 183520090216: 1836 xorg 7.4 wants to configure its input devices via hald which does not 1837 yet work with USB2. If the keyboard/mouse does not work in xorg then 1838 add 1839 Option "AllowEmptyInput" "off" 1840 to your ServerLayout section. This will cause X to use the configured 1841 kbd and mouse sections from your xorg.conf. 1842 184320090215: 1844 The GENERIC kernels for all architectures now default to the new USB2 1845 stack. No kernel config options or code have been removed so if a 1846 problem arises please report it and optionally revert to the old USB 1847 stack. If you are loading USB kernel modules or have a custom kernel 1848 that includes GENERIC then ensure that usb names are also changed over, 1849 eg uftdi -> usb2_serial_ftdi. 1850 1851 Older programs linked against the ports libusb 0.1 need to be 1852 redirected to the new stack's libusb20. /etc/libmap.conf can 1853 be used for this: 1854 # Map old usb library to new one for usb2 stack 1855 libusb-0.1.so.8 libusb20.so.1 1856 185720090209: 1858 All USB ethernet devices now attach as interfaces under the name ueN 1859 (eg. ue0). This is to provide a predictable name as vendors often 1860 change usb chipsets in a product without notice. 1861 186220090203: 1863 The ichsmb(4) driver has been changed to require SMBus slave 1864 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1865 All of the other SMBus controller drivers require left-justified 1866 slave addresses, so this change makes all the drivers provide the 1867 same interface. 1868 186920090201: 1870 INET6 statistics (struct ip6stat) was updated. 1871 netstat(1) needs to be recompiled. 1872 187320090119: 1874 NTFS has been removed from GENERIC kernel on amd64 to match 1875 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1876 will load ntfs.ko module automatically when NTFS support is 1877 actually needed, unless ntfs.ko is not installed or security 1878 level prohibits loading kernel modules. If either is the case, 1879 "options NTFS" has to be added into kernel config. 1880 188120090115: 1882 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1883 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1884 800061. User space tools that rely on the size of struct tcpcb in 1885 tcp_var.h (e.g. sockstat) need to be recompiled. 1886 188720081225: 1888 ng_tty(4) module updated to match the new TTY subsystem. 1889 Due to API change, user-level applications must be updated. 1890 New API support added to mpd5 CVS and expected to be present 1891 in next mpd5.3 release. 1892 189320081219: 1894 With __FreeBSD_version 800060 the makefs tool is part of 1895 the base system (it was a port). 1896 189720081216: 1898 The afdata and ifnet locks have been changed from mutexes to 1899 rwlocks, network modules will need to be re-compiled. 1900 190120081214: 1902 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1903 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1904 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1905 architecture and 40 bytes on 64-bit architecture. The userland 1906 applications "arp" and "ndp" have been updated accordingly. 1907 The output from "netstat -r" shows only routing entries and 1908 none of the L2 information. 1909 191020081130: 1911 __FreeBSD_version 800057 marks the switchover from the 1912 binary ath hal to source code. Users must add the line: 1913 1914 options AH_SUPPORT_AR5416 1915 1916 to their kernel config files when specifying: 1917 1918 device ath_hal 1919 1920 The ath_hal module no longer exists; the code is now compiled 1921 together with the driver in the ath module. It is now 1922 possible to tailor chip support (i.e. reduce the set of chips 1923 and thereby the code size); consult ath_hal(4) for details. 1924 192520081121: 1926 __FreeBSD_version 800054 adds memory barriers to 1927 <machine/atomic.h>, new interfaces to ifnet to facilitate 1928 multiple hardware transmit queues for cards that support 1929 them, and a lock-less ring-buffer implementation to 1930 enable drivers to more efficiently manage queueing of 1931 packets. 1932 193320081117: 1934 A new version of ZFS (version 13) has been merged to -HEAD. 1935 This version has zpool attribute "listsnapshots" off by 1936 default, which means "zfs list" does not show snapshots, 1937 and is the same as Solaris behavior. 1938 193920081028: 1940 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1941 194220081009: 1943 The uhci, ohci, ehci and slhci USB Host controller drivers have 1944 been put into separate modules. If you load the usb module 1945 separately through loader.conf you will need to load the 1946 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1947 controller add the following to loader.conf: 1948 1949 uhci_load="YES" 1950 ehci_load="YES" 1951 195220081009: 1953 The ABI used by the PMC toolset has changed. Please keep 1954 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1955 sync. 1956 195720081009: 1958 atapci kernel module now includes only generic PCI ATA 1959 driver. AHCI driver moved to ataahci kernel module. 1960 All vendor-specific code moved into separate kernel modules: 1961 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1962 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1963 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1964 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1965 196620080820: 1967 The TTY subsystem of the kernel has been replaced by a new 1968 implementation, which provides better scalability and an 1969 improved driver model. Most common drivers have been migrated to 1970 the new TTY subsystem, while others have not. The following 1971 drivers have not yet been ported to the new TTY layer: 1972 1973 PCI/ISA: 1974 cy, digi, rc, rp, sio 1975 1976 USB: 1977 ubser, ucycom 1978 1979 Line disciplines: 1980 ng_h4, ng_tty, ppp, sl, snp 1981 1982 Adding these drivers to your kernel configuration file shall 1983 cause compilation to fail. 1984 198520080818: 1986 ntpd has been upgraded to 4.2.4p5. 1987 198820080801: 1989 OpenSSH has been upgraded to 5.1p1. 1990 1991 For many years, FreeBSD's version of OpenSSH preferred DSA 1992 over RSA for host and user authentication keys. With this 1993 upgrade, we've switched to the vendor's default of RSA over 1994 DSA. This may cause upgraded clients to warn about unknown 1995 host keys even for previously known hosts. Users should 1996 follow the usual procedure for verifying host keys before 1997 accepting the RSA key. 1998 1999 This can be circumvented by setting the "HostKeyAlgorithms" 2000 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 2001 command line. 2002 2003 Please note that the sequence of keys offered for 2004 authentication has been changed as well. You may want to 2005 specify IdentityFile in a different order to revert this 2006 behavior. 2007 200820080713: 2009 The sio(4) driver has been removed from the i386 and amd64 2010 kernel configuration files. This means uart(4) is now the 2011 default serial port driver on those platforms as well. 2012 2013 To prevent collisions with the sio(4) driver, the uart(4) driver 2014 uses different names for its device nodes. This means the 2015 onboard serial port will now most likely be called "ttyu0" 2016 instead of "ttyd0". You may need to reconfigure applications to 2017 use the new device names. 2018 2019 When using the serial port as a boot console, be sure to update 2020 /boot/device.hints and /etc/ttys before booting the new kernel. 2021 If you forget to do so, you can still manually specify the hints 2022 at the loader prompt: 2023 2024 set hint.uart.0.at="isa" 2025 set hint.uart.0.port="0x3F8" 2026 set hint.uart.0.flags="0x10" 2027 set hint.uart.0.irq="4" 2028 boot -s 2029 203020080609: 2031 The gpt(8) utility has been removed. Use gpart(8) to partition 2032 disks instead. 2033 203420080603: 2035 The version that Linuxulator emulates was changed from 2.4.2 2036 to 2.6.16. If you experience any problems with Linux binaries 2037 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2038 if it fixes the problem contact emulation mailing list. 2039 204020080525: 2041 ISDN4BSD (I4B) was removed from the src tree. You may need to 2042 update a your kernel configuration and remove relevant entries. 2043 204420080509: 2045 I have checked in code to support multiple routing tables. 2046 See the man pages setfib(1) and setfib(2). 2047 This is a hopefully backwards compatible version, 2048 but to make use of it you need to compile your kernel 2049 with options ROUTETABLES=2 (or more up to 16). 2050 205120080420: 2052 The 802.11 wireless support was redone to enable multi-bss 2053 operation on devices that are capable. The underlying device 2054 is no longer used directly but instead wlanX devices are 2055 cloned with ifconfig. This requires changes to rc.conf files. 2056 For example, change: 2057 ifconfig_ath0="WPA DHCP" 2058 to 2059 wlans_ath0=wlan0 2060 ifconfig_wlan0="WPA DHCP" 2061 see rc.conf(5) for more details. In addition, mergemaster of 2062 /etc/rc.d is highly recommended. Simultaneous update of userland 2063 and kernel wouldn't hurt either. 2064 2065 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2066 modules were merged into the base wlan module. All references 2067 to these modules (e.g. in kernel config files) must be removed. 2068 206920080408: 2070 psm(4) has gained write(2) support in native operation level. 2071 Arbitrary commands can be written to /dev/psm%d and status can 2072 be read back from it. Therefore, an application is responsible 2073 for status validation and error recovery. It is a no-op in 2074 other operation levels. 2075 207620080312: 2077 Support for KSE threading has been removed from the kernel. To 2078 run legacy applications linked against KSE libmap.conf may 2079 be used. The following libmap.conf may be used to ensure 2080 compatibility with any prior release: 2081 2082 libpthread.so.1 libthr.so.1 2083 libpthread.so.2 libthr.so.2 2084 libkse.so.3 libthr.so.3 2085 208620080301: 2087 The layout of struct vmspace has changed. This affects libkvm 2088 and any executables that link against libkvm and use the 2089 kvm_getprocs() function. In particular, but not exclusively, 2090 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2091 The effects are minimal, but it's advisable to upgrade world 2092 nonetheless. 2093 209420080229: 2095 The latest em driver no longer has support in it for the 2096 82575 adapter, this is now moved to the igb driver. The 2097 split was done to make new features that are incompatible 2098 with older hardware easier to do. 2099 210020080220: 2101 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2102 likewise the kernel option is now GEOM_LINUX_LVM. 2103 210420080211: 2105 The default NFS mount mode has changed from UDP to TCP for 2106 increased reliability. If you rely on (insecurely) NFS 2107 mounting across a firewall you may need to update your 2108 firewall rules. 2109 211020080208: 2111 Belatedly note the addition of m_collapse for compacting 2112 mbuf chains. 2113 211420080126: 2115 The fts(3) structures have been changed to use adequate 2116 integer types for their members and so to be able to cope 2117 with huge file trees. The old fts(3) ABI is preserved 2118 through symbol versioning in libc, so third-party binaries 2119 using fts(3) should still work, although they will not take 2120 advantage of the extended types. At the same time, some 2121 third-party software might fail to build after this change 2122 due to unportable assumptions made in its source code about 2123 fts(3) structure members. Such software should be fixed 2124 by its vendor or, in the worst case, in the ports tree. 2125 FreeBSD_version 800015 marks this change for the unlikely 2126 case that a portable fix is impossible. 2127 212820080123: 2129 To upgrade to -current after this date, you must be running 2130 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2131 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2132 213320071128: 2134 The ADAPTIVE_GIANT kernel option has been retired because its 2135 functionality is the default now. 2136 213720071118: 2138 The AT keyboard emulation of sunkbd(4) has been turned on 2139 by default. In order to make the special symbols of the Sun 2140 keyboards driven by sunkbd(4) work under X these now have 2141 to be configured the same way as Sun USB keyboards driven 2142 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2143 2144 Option "XkbLayout" "us" 2145 Option "XkbRules" "xorg" 2146 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2147 214820071024: 2149 It has been decided that it is desirable to provide ABI 2150 backwards compatibility to the FreeBSD 4/5/6 versions of the 2151 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2152 broken with the introduction of PCI domain support (see the 2153 20070930 entry). Unfortunately, this required the ABI of 2154 PCIOCGETCONF to be broken again in order to be able to 2155 provide backwards compatibility to the old version of that 2156 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2157 again. As for prominent ports this affects neither pciutils 2158 nor xorg-server this time, the hal port needs to be rebuilt 2159 however. 2160 216120071020: 2162 The misnamed kthread_create() and friends have been renamed 2163 to kproc_create() etc. Many of the callers already 2164 used kproc_start().. 2165 I will return kthread_create() and friends in a while 2166 with implementations that actually create threads, not procs. 2167 Renaming corresponds with version 800002. 2168 216920071010: 2170 RELENG_7 branched. 2171 2172COMMON ITEMS: 2173 2174 General Notes 2175 ------------- 2176 Avoid using make -j when upgrading. While generally safe, there are 2177 sometimes problems using -j to upgrade. If your upgrade fails with 2178 -j, please try again without -j. From time to time in the past there 2179 have been problems using -j with buildworld and/or installworld. This 2180 is especially true when upgrading between "distant" versions (eg one 2181 that cross a major release boundary or several minor releases, or when 2182 several months have passed on the -current branch). 2183 2184 Sometimes, obscure build problems are the result of environment 2185 poisoning. This can happen because the make utility reads its 2186 environment when searching for values for global variables. To run 2187 your build attempts in an "environmental clean room", prefix all make 2188 commands with 'env -i '. See the env(1) manual page for more details. 2189 2190 When upgrading from one major version to another it is generally best 2191 to upgrade to the latest code in the currently installed branch first, 2192 then do an upgrade to the new branch. This is the best-tested upgrade 2193 path, and has the highest probability of being successful. Please try 2194 this approach before reporting problems with a major version upgrade. 2195 2196 When upgrading a live system, having a root shell around before 2197 installing anything can help undo problems. Not having a root shell 2198 around can lead to problems if pam has changed too much from your 2199 starting point to allow continued authentication after the upgrade. 2200 2201 ZFS notes 2202 --------- 2203 When upgrading the boot ZFS pool to a new version, always follow 2204 these two steps: 2205 2206 1.) recompile and reinstall the ZFS boot loader and boot block 2207 (this is part of "make buildworld" and "make installworld") 2208 2209 2.) update the ZFS boot block on your boot drive 2210 2211 The following example updates the ZFS boot block on the first 2212 partition (freebsd-boot) of a GPT partitioned drive ad0: 2213 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2214 2215 Non-boot pools do not need these updates. 2216 2217 To build a kernel 2218 ----------------- 2219 If you are updating from a prior version of FreeBSD (even one just 2220 a few days old), you should follow this procedure. It is the most 2221 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2222 2223 make kernel-toolchain 2224 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2225 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2226 2227 To test a kernel once 2228 --------------------- 2229 If you just want to boot a kernel once (because you are not sure 2230 if it works, or if you want to boot a known bad kernel to provide 2231 debugging information) run 2232 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2233 nextboot -k testkernel 2234 2235 To just build a kernel when you know that it won't mess you up 2236 -------------------------------------------------------------- 2237 This assumes you are already running a CURRENT system. Replace 2238 ${arch} with the architecture of your machine (e.g. "i386", 2239 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2240 2241 cd src/sys/${arch}/conf 2242 config KERNEL_NAME_HERE 2243 cd ../compile/KERNEL_NAME_HERE 2244 make depend 2245 make 2246 make install 2247 2248 If this fails, go to the "To build a kernel" section. 2249 2250 To rebuild everything and install it on the current system. 2251 ----------------------------------------------------------- 2252 # Note: sometimes if you are running current you gotta do more than 2253 # is listed here if you are upgrading from a really old current. 2254 2255 <make sure you have good level 0 dumps> 2256 make buildworld 2257 make kernel KERNCONF=YOUR_KERNEL_HERE 2258 [1] 2259 <reboot in single user> [3] 2260 mergemaster -p [5] 2261 make installworld 2262 mergemaster -i [4] 2263 make delete-old [6] 2264 <reboot> 2265 2266 To cross-install current onto a separate partition 2267 -------------------------------------------------- 2268 # In this approach we use a separate partition to hold 2269 # current's root, 'usr', and 'var' directories. A partition 2270 # holding "/", "/usr" and "/var" should be about 2GB in 2271 # size. 2272 2273 <make sure you have good level 0 dumps> 2274 <boot into -stable> 2275 make buildworld 2276 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2277 <maybe newfs current's root partition> 2278 <mount current's root partition on directory ${CURRENT_ROOT}> 2279 make installworld DESTDIR=${CURRENT_ROOT} 2280 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2281 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2282 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2283 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2284 <reboot into current> 2285 <do a "native" rebuild/install as described in the previous section> 2286 <maybe install compatibility libraries from ports/misc/compat*> 2287 <reboot> 2288 2289 2290 To upgrade in-place from stable to current 2291 ---------------------------------------------- 2292 <make sure you have good level 0 dumps> 2293 make buildworld [9] 2294 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2295 [1] 2296 <reboot in single user> [3] 2297 mergemaster -p [5] 2298 make installworld 2299 mergemaster -i [4] 2300 make delete-old [6] 2301 <reboot> 2302 2303 Make sure that you've read the UPDATING file to understand the 2304 tweaks to various things you need. At this point in the life 2305 cycle of current, things change often and you are on your own 2306 to cope. The defaults can also change, so please read ALL of 2307 the UPDATING entries. 2308 2309 Also, if you are tracking -current, you must be subscribed to 2310 freebsd-current@freebsd.org. Make sure that before you update 2311 your sources that you have read and understood all the recent 2312 messages there. If in doubt, please track -stable which has 2313 much fewer pitfalls. 2314 2315 [1] If you have third party modules, such as vmware, you 2316 should disable them at this point so they don't crash your 2317 system on reboot. 2318 2319 [3] From the bootblocks, boot -s, and then do 2320 fsck -p 2321 mount -u / 2322 mount -a 2323 cd src 2324 adjkerntz -i # if CMOS is wall time 2325 Also, when doing a major release upgrade, it is required that 2326 you boot into single user mode to do the installworld. 2327 2328 [4] Note: This step is non-optional. Failure to do this step 2329 can result in a significant reduction in the functionality of the 2330 system. Attempting to do it by hand is not recommended and those 2331 that pursue this avenue should read this file carefully, as well 2332 as the archives of freebsd-current and freebsd-hackers mailing lists 2333 for potential gotchas. The -U option is also useful to consider. 2334 See mergemaster(8) for more information. 2335 2336 [5] Usually this step is a noop. However, from time to time 2337 you may need to do this if you get unknown user in the following 2338 step. It never hurts to do it all the time. You may need to 2339 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2340 install) after the buildworld before this step if you last updated 2341 from current before 20130425 or from -stable before 20130430. 2342 2343 [6] This only deletes old files and directories. Old libraries 2344 can be deleted by "make delete-old-libs", but you have to make 2345 sure that no program is using those libraries anymore. 2346 2347 [8] In order to have a kernel that can run the 4.x binaries needed to 2348 do an installworld, you must include the COMPAT_FREEBSD4 option in 2349 your kernel. Failure to do so may leave you with a system that is 2350 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2351 required to run the 5.x binaries on more recent kernels. And so on 2352 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2353 2354 Make sure that you merge any new devices from GENERIC since the 2355 last time you updated your kernel config file. 2356 2357 [9] When checking out sources, you must include the -P flag to have 2358 cvs prune empty directories. 2359 2360 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2361 "?=" instead of the "=" assignment operator, so that buildworld can 2362 override the CPUTYPE if it needs to. 2363 2364 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2365 not on the command line, or in /etc/make.conf. buildworld will 2366 warn if it is improperly defined. 2367FORMAT: 2368 2369This file contains a list, in reverse chronological order, of major 2370breakages in tracking -current. It is not guaranteed to be a complete 2371list of such breakages, and only contains entries since October 10, 2007. 2372If you need to see UPDATING entries from before that date, you will need 2373to fetch an UPDATING file from an older FreeBSD release. 2374 2375Copyright information: 2376 2377Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2378 2379Redistribution, publication, translation and use, with or without 2380modification, in full or in part, in any form or format of this 2381document are permitted without further permission from the author. 2382 2383THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2384IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2385WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2386DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2387INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2388(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2389SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2390HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2391STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2392IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2393POSSIBILITY OF SUCH DAMAGE. 2394 2395Contact Warner Losh if you have any questions about your use of 2396this document. 2397 2398$FreeBSD: releng/10.2/UPDATING 307933 2016-10-25 17:11:11Z glebius $ 2399