UPDATING revision 309694
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 1920161208 p27 FreeBSD-SA-16:37.libc [revised] 20 21 Fix regressions introduced by SA-16:37.libc. 22 2320161206 p26 FreeBSD-SA-16:36.telnetd 24 FreeBSD-SA-16:37.libc 25 FreeBSD-SA-16:38.bhyve 26 FreeBSD-EN-16:19.tzcode 27 FreeBSD-EN-16:20.tzdata 28 29 Fix possible login(1) argument injection in telnetd(8). [SA-16:36] 30 Fix link_ntoa(3) buffer overflow in libc. [SA-16:37] 31 Fix possible escape from bhyve(8) virtual machine. [SA-16:38] 32 Fix warnings about valid time zone abbreviations. [EN-16:19] 33 Update timezone database information. [EN-16:20] 34 3520161102 p25 FreeBSD-SA-16:35.openssl 36 37 Fix OpenSSL remote DoS vulnerability. [SA-16:35] 38 3920161025 p24 FreeBSD-SA-16:15.sysarch [revised] 40 41 Fix incorrect argument validation in sysarch(2). [SA-16:15] 42 4320161010 p23 FreeBSD-SA-16:29.bspatch 44 FreeBSD-SA-16:30.portsnap 45 FreeBSD-SA-16:31.libarchive 46 47 Fix bspatch heap overflow vulnerability. [SA-16:29] 48 49 Fix multiple portsnap vulnerabilities. [SA-16:30] 50 51 Fix multiple libarchive vulnerabilities. [SA-16:31] 52 5320160926 p22 FreeBSD-SA-16:26.openssl [revised] 54 55 Fix OpenSSL regression introduced in SA-16:26. 56 5720160923 p21 FreeBSD-SA-16:26.openssl 58 59 Fix multiple OpenSSL vulnerabilitites. 60 6120160725 p20 FreeBSD-SA-16:25.bspatch 62 FreeBSD-EN-16:09.freebsd-update 63 64 Fix bspatch heap overflow vulnerability. [SA-16:25] 65 66 Fix freebsd-update(8) support of FreeBSD 11.0 release 67 distribution. [EN-16:09] 68 6920160604 p19 FreeBSD-SA-16:24.ntp 70 71 Fix multiple vulnerabilities of ntp. 72 7320160531 p18 FreeBSD-SA-16:20.linux 74 FreeBSD-SA-16:21.43bsd 75 FreeBSD-SA-16:22.libarchive 76 77 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 78 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 79 Fix directory traversal in cpio(1). [SA-16:22] 80 8120160517 p17 FreeBSD-SA-16:18.atkbd 82 FreeBSD-SA-16:19.sendmsg 83 84 Fix buffer overflow in keyboard driver. [SA-16:18] 85 86 Fix incorrect argument handling in sendmsg(2). [SA-16:19] 87 8820160504 p16 FreeBSD-SA-16:17.openssl 89 FreeBSD-EN-16:07.ipi 90 FreeBSD-EN-16:08.zfs 91 92 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 93 94 Fix excessive latency in x86 IPI delivery. [EN-16:07] 95 96 Fix memory leak in ZFS. [EN-16:08] 97 9820160429 p15 FreeBSD-SA-16:16.ntp 99 100 Fix multiple vulnerabilities of ntp. 101 10220160316 p14 FreeBSD-SA-16:14.openssh-xauth 103 FreeBSD-SA-16:15.sysarch 104 FreeBSD-EN-16:04.hyperv 105 FreeBSD-EN-16:05.hv_netvsc 106 107 Fix OpenSSH xauth(1) command injection. [SA-16:14] 108 Fix incorrect argument validation in sysarch(2). [SA-16:15] 109 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04] 110 Fix hv_netvsc(4) incorrect TCP/IP checksums. [EN-16:05] 111 11220160303 p13 FreeBSD-SA-16:12.openssl 113 114 Fix multiple vulnerabilities of OpenSSL. 115 11620160130 p12 FreeBSD-SA-16:11.openssl 117 118 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 119 12020160127 p11 FreeBSD-SA-16:09.ntp 121 FreeBSD-SA-16:10.linux 122 123 Fix multiple vulnerabilities of ntp. [SA-16:09] 124 125 Fix Linux compatibility layer issetugid(2) system call 126 vulnerability. [SA-16:10] 127 12820160114 p10 FreeBSD-SA-16:07.openssh 129 130 Fix OpenSSH client information leak. [SA-16:07] 131 13220160114 p9 FreeBSD-EN-16:01.filemon 133 FreeBSD-EN-16:02.pf 134 FreeBSD-EN-16:03.yplib 135 FreeBSD-SA-16:01.sctp 136 FreeBSD-SA-16:02.ntp 137 FreeBSD-SA-16:03.linux 138 FreeBSD-SA-16:04.linux 139 FreeBSD-SA-16:05.tcp 140 FreeBSD-SA-16:06.bsnmpd 141 142 Fix multiple stability and locking problems in filemon(4). [EN-16:01] 143 Fix pf(4) generating bad TCP checksums. [EN-16:02] 144 Fix infinite loop in YP/NIS client library. [EN-16:03] 145 Fix remote denial of service in SCTP. [SA-16:01] 146 Update NTP to 4.2.8p5. [SA-16:02] 147 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 148 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 149 Fix crash in TCP MD5 signatures. [SA-16:05] 150 Fix insecure default permissions for snmpd.config. [SA-16:06] 151 15220151205 p8 FreeBSD-SA-15:26.openssl 153 154 Fix multiple OpenSSL vulnerabilities. [SA-15:26] 155 15620151104 p7 FreeBSD-SA-15:25.ntp [revised] 157 FreeBSD-EN-15:19.kqueue 158 FreeBSD-EN-15:20.vm 159 160 Fix regression in ntpd(8) lacking support for RAWDCF reference 161 clock in 10.2-RELEASE-p6. [SA-15:25] 162 163 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 164 165 Fix applications exiting due to segmentation violation on a correct 166 memory address. [EN-15:20.vm] 167 16820151026: p6 FreeBSD-SA-15:25.ntp 169 170 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 171 17220151002: p5 FreeBSD-SA-15:24.rpcbind [revised] 173 Revised patch to address a regression that prevents NIS from working. 174 17520150929: p4 FreeBSD-SA-15:24.rpcbind 176 177 Fix rpcbind(8) remote denial of service. [SA-15:24] 178 17920150916: p3 FreeBSD-EN-15:16.pw 180 FreeBSD-EN-15:17.libc 181 FreeBSD-EN-15:18.pkg 182 183 Fix regression in pw(8) when creating numeric users or groups. 184 [EN-15:16] 185 186 Fix libc handling of signals for multi-threaded processes. 187 [EN-15:17] 188 189 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 190 19120150825: p2 FreeBSD-SA-15:22.openssh 192 FreeBSD-EN-15:15.pkg 193 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 194 195 Fix insufficient check of unsupported pkg(7) signature methods. 196 [EN-15:15] 197 19820150818: p1 FreeBSD-SA-15:20.expat 199 FreeBSD-EN-15:11.toolchain 200 FreeBSD-EN-15:12.netstat 201 FreeBSD-EN-15:13.vidcontrol 202 203 Fix multiple integer overflows in expat (libbsdxml) XML parser. 204 [SA-15:20] 205 206 Fix make(1) syntax errors when upgrading from 9.x and earlier. 207 [EN-15:11] 208 209 Fix incorrect netstat(1) data handling on 32-bit systems. 210 [EN-15:12] 211 212 Allow size argument to vidcontrol(1) for syscons(4). [EN-15:13] 213 21420150813: 215 10.2-RELEASE. 216 21720150703: 218 The default Unbound configuration now enables remote control 219 using a local socket. Users who have already enabled the 220 local_unbound service should regenerate their configuration 221 by running "service local_unbound setup" as root. 222 22320150624: 224 An additional fix for the issue described in the 20150614 sendmail 225 entry below has been been committed in revision 284786. 226 22720150615: 228 The fix for the issue described in the 20150614 sendmail entry 229 below has been been committed in revision 284485. The work 230 around described in that entry is no longer needed unless the 231 default setting is overridden by a confDH_PARAMETERS configuration 232 setting of '5' or pointing to a 512 bit DH parameter file. 233 23420150614: 235 The import of openssl to address the FreeBSD-SA-15:10.openssl 236 security advisory includes a change which rejects handshakes 237 with DH parameters below 768 bits. sendmail releases prior 238 to 8.15.2 (not yet released), defaulted to a 512 bit 239 DH parameter setting for client connections. To work around 240 this interoperability, sendmail can be configured to use a 241 2048 bit DH parameter by: 242 243 1. Edit /etc/mail/`hostname`.mc 244 2. If a setting for confDH_PARAMETERS does not exist or 245 exists and is set to a string beginning with '5', 246 replace it with '2'. 247 3. If a setting for confDH_PARAMETERS exists and is set to 248 a file path, create a new file with: 249 openssl dhparam -out /path/to/file 2048 250 4. Rebuild the .cf file: 251 cd /etc/mail/; make; make install 252 5. Restart sendmail: 253 cd /etc/mail/; make restart 254 255 A sendmail patch is coming, at which time this file will be 256 updated. 257 25820150601: 259 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 260 defined in symlink(7); previously symlinks were silently ignored. 261 26220150430: 263 The const qualifier has been removed from iconv(3) to comply with 264 POSIX. The ports tree is aware of this from r384038 onwards. 265 26620141215: 267 At svn r275807, The default linux compat kernel ABI has been adjusted 268 to 2.6.18 in support of the linux-c6 compat ports infrastructure 269 update. If you wish to continue using the linux-f10 compat ports, 270 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 271 encouraged to update their linux-compat packages to linux-c6 during 272 their next update cycle. 273 274 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 275 27620141205: 277 pjdfstest has been integrated into kyua as an opt-in test suite. 278 Please see share/doc/pjdfstest/README for a more details on how to 279 execute it. 280 28120141118: 282 10.1-RELEASE. 283 28420140904: 285 The ofwfb driver, used to provide a graphics console on PowerPC when 286 using vt(4), no longer allows mmap() of all of physical memory. This 287 will prevent Xorg on PowerPC with some ATI graphics cards from 288 initializing properly unless x11-servers/xorg-server is updated to 289 1.12.4_8 or newer. 290 29120140831: 292 The libatf-c and libatf-c++ major versions were downgraded to 0 and 293 1 respectively to match the upstream numbers. They were out of 294 sync because, when they were originally added to FreeBSD, the 295 upstream versions were not respected. These libraries are private 296 and not yet built by default, so renumbering them should be a 297 non-issue. However, unclean source trees will yield broken test 298 programs once the operator executes "make delete-old-libs" after a 299 "make installworld". 300 301 Additionally, the atf-sh binary was made private by moving it into 302 /usr/libexec/. Already-built shell test programs will keep the 303 path to the old binary so they will break after "make delete-old" 304 is run. 305 306 If you are using WITH_TESTS=yes (not the default), wipe the object 307 tree and rebuild from scratch to prevent spurious test failures. 308 This is only needed once: the misnumbered libraries and misplaced 309 binaries have been added to OptionalObsoleteFiles.inc so they will 310 be removed during a clean upgrade. 311 31220140814: 313 The ixgbe tunables now match their sysctl counterparts, for example: 314 hw.ixgbe.enable_aim => hw.ix.enable_aim 315 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 316 31720140801: 318 The NFSv4.1 server committed by r269398 changes the internal 319 function call interfaces used between the NFS and krpc modules. 320 As such, __FreeBSD_version was bumped. 321 32220140729: 323 The default unbound configuration has been modified to address 324 issues with reverse lookups on networks that use private 325 address ranges. If you use the local_unbound service, run 326 "service local_unbound setup" as root to regenerate your 327 configuration, then "service local_unbound reload" to load the 328 new configuration. 329 33020140717: 331 It is no longer necessary to include the dwarf version in your DEBUG 332 options in your kernel config file. The bug that required it to be 333 placed in the config file has bene fixed. DEBUG should now just 334 contain -g. The build system will automatically update things 335 to do the right thing. 336 33720140715: 338 Several ABI breaking changes were merged to CTL and new iSCSI code. 339 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 340 iscsictl need to be rebuilt to work with a new kernel. 341 34220140708: 343 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 344 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 345 which differs from the behaviour controlled by this knob.) 346 34720140608: 348 On i386 and amd64 systems, the onifconsole flag is now set by default 349 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 350 as a login TTY if it is set in the bootloader as an active kernel 351 console. No changes in behavior should result otherwise. To revert to 352 the previous behavior, set ttyu0 to "off" in /etc/ttys. 353 35420140512: 355 Clang and llvm have been upgraded to 3.4.1 release. 356 35720140321: 358 Clang and llvm have been upgraded to 3.4 release. 359 36020140306: 361 If a Makefile in a tests/ directory was auto-generating a Kyuafile 362 instead of providing an explicit one, this would prevent such 363 Makefile from providing its own Kyuafile in the future during 364 NO_CLEAN builds. This has been fixed in the Makefiles but manual 365 intervention is needed to clean an objdir if you use NO_CLEAN: 366 # find /usr/obj -name Kyuafile | xargs rm -f 367 36820140303: 369 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 370 capability mode support. Please note that enabling the feature in 371 kernel is still highly recommended. 372 37320140227: 374 OpenSSH is now built with sandbox support, and will use sandbox as 375 the default privilege separation method. This requires Capsicum 376 capability mode support in kernel. 377 37820140216: 379 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 380 been deprecated and will not be part of FreeBSD 11.0 and later 381 releases. If you use this driver, please consider switching to 382 the nfe(4) driver instead. 383 38420140120: 385 10.0-RELEASE. 386 38720131216: 388 The behavior of gss_pseudo_random() for the krb5 mechanism 389 has changed, for applications requesting a longer random string 390 than produced by the underlying enctype's pseudo-random() function. 391 In particular, the random string produced from a session key of 392 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 393 be different at the 17th octet and later, after this change. 394 The counter used in the PRF+ construction is now encoded as a 395 big-endian integer in accordance with RFC 4402. 396 __FreeBSD_version is bumped to 1000701. 397 39820131108: 399 The WITHOUT_ATF build knob has been removed and its functionality 400 has been subsumed into the more generic WITHOUT_TESTS. If you were 401 using the former to disable the build of the ATF libraries, you 402 should change your settings to use the latter. 403 40420131031: 405 The default version of mtree is nmtree which is obtained from 406 NetBSD. The output is generally the same, but may vary 407 slightly. If you found you need identical output adding 408 "-F freebsd9" to the command line should do the trick. For the 409 time being, the old mtree is available as fmtree. 410 41120131014: 412 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 413 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 414 1.1.4_8 and verify bsdyml not linked in, before running "make 415 delete-old-libs": 416 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 417 or 418 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 419 42020131010: 421 The rc.d/jail script has been updated to support jail(8) 422 configuration file. The "jail_<jname>_*" rc.conf(5) variables 423 for per-jail configuration are automatically converted to 424 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 425 This is transparently backward compatible. See below about some 426 incompatibilities and rc.conf(5) manual page for more details. 427 428 These variables are now deprecated in favor of jail(8) configuration 429 file. One can use "rc.d/jail config <jname>" command to generate 430 a jail(8) configuration file in /var/run/jail.<jname>.conf without 431 running the jail(8) utility. The default pathname of the 432 configuration file is /etc/jail.conf and can be specified by 433 using $jail_conf or $jail_<jname>_conf variables. 434 435 Please note that jail_devfs_ruleset accepts an integer at 436 this moment. Please consider to rewrite the ruleset name 437 with an integer. 438 43920130930: 440 BIND has been removed from the base system. If all you need 441 is a local resolver, simply enable and start the local_unbound 442 service instead. Otherwise, several versions of BIND are 443 available in the ports tree. The dns/bind99 port is one example. 444 445 With this change, nslookup(1) and dig(1) are no longer in the base 446 system. Users should instead use host(1) and drill(1) which are 447 in the base system. Alternatively, nslookup and dig can 448 be obtained by installing the dns/bind-tools port. 449 45020130916: 451 With the addition of unbound(8), a new unbound user is now 452 required during installworld. "mergemaster -p" can be used to 453 add the user prior to installworld, as documented in the handbook. 454 45520130911: 456 OpenSSH is now built with DNSSEC support, and will by default 457 silently trust signed SSHFP records. This can be controlled with 458 the VerifyHostKeyDNS client configuration setting. DNSSEC support 459 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 460 46120130906: 462 The GNU Compiler Collection and C++ standard library (libstdc++) 463 are no longer built by default on platforms where clang is the system 464 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 465 options in src.conf. 466 46720130905: 468 The PROCDESC kernel option is now part of the GENERIC kernel 469 configuration and is required for the rwhod(8) to work. 470 If you are using custom kernel configuration, you should include 471 'options PROCDESC'. 472 47320130905: 474 The API and ABI related to the Capsicum framework was modified 475 in backward incompatible way. The userland libraries and programs 476 have to be recompiled to work with the new kernel. This includes the 477 following libraries and programs, but the whole buildworld is 478 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 479 kdump, procstat, rwho, rwhod, uniq. 480 48120130903: 482 AES-NI intrinsic support has been added to gcc. The AES-NI module 483 has been updated to use this support. A new gcc is required to build 484 the aesni module on both i386 and amd64. 485 48620130821: 487 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 488 Thus "device padlock_rng" and "device rdrand_rng" should be 489 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 490 49120130813: 492 WITH_ICONV has been split into two feature sets. WITH_ICONV now 493 enables just the iconv* functionality and is now on by default. 494 WITH_LIBICONV_COMPAT enables the libiconv api and link time 495 compatability. Set WITHOUT_ICONV to build the old way. 496 If you have been using WITH_ICONV before, you will very likely 497 need to turn on WITH_LIBICONV_COMPAT. 498 49920130806: 500 INVARIANTS option now enables DEBUG for code with OpenSolaris and 501 Illumos origin, including ZFS. If you have INVARIANTS in your 502 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 503 explicitly. 504 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 505 locks if WITNESS option was set. Because that generated a lot of 506 witness(9) reports and all of them were believed to be false 507 positives, this is no longer done. New option OPENSOLARIS_WITNESS 508 can be used to achieve the previous behavior. 509 51020130806: 511 Timer values in IPv6 data structures now use time_uptime instead 512 of time_second. Although this is not a user-visible functional 513 change, userland utilities which directly use them---ndp(8), 514 rtadvd(8), and rtsold(8) in the base system---need to be updated 515 to r253970 or later. 516 51720130802: 518 find -delete can now delete the pathnames given as arguments, 519 instead of only files found below them or if the pathname did 520 not contain any slashes. Formerly, the following error message 521 would result: 522 523 find: -delete: <path>: relative path potentially not safe 524 525 Deleting the pathnames given as arguments can be prevented 526 without error messages using -mindepth 1 or by changing 527 directory and passing "." as argument to find. This works in the 528 old as well as the new version of find. 529 53020130726: 531 Behavior of devfs rules path matching has been changed. 532 Pattern is now always matched against fully qualified devfs 533 path and slash characters must be explicitly matched by 534 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 535 subdirectories must be reviewed. 536 53720130716: 538 The default ARM ABI has changed to the ARM EABI. The old ABI is 539 incompatible with the ARM EABI and all programs and modules will 540 need to be rebuilt to work with a new kernel. 541 542 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 543 544 NOTE: Support for the old ABI will be removed in the future and 545 users are advised to upgrade. 546 54720130709: 548 pkg_install has been disconnected from the build if you really need it 549 you should add WITH_PKGTOOLS in your src.conf(5). 550 55120130709: 552 Most of network statistics structures were changed to be able 553 keep 64-bits counters. Thus all tools, that work with networking 554 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 555 55620130629: 557 Fix targets that run multiple make's to use && rather than ; 558 so that subsequent steps depend on success of previous. 559 560 NOTE: if building 'universe' with -j* on stable/8 or stable/9 561 it would be better to start the build using bmake, to avoid 562 overloading the machine. 563 56420130618: 565 Fix a bug that allowed a tracing process (e.g. gdb) to write 566 to a memory-mapped file in the traced process's address space 567 even if neither the traced process nor the tracing process had 568 write access to that file. 569 57020130615: 571 CVS has been removed from the base system. An exact copy 572 of the code is available from the devel/cvs port. 573 57420130613: 575 Some people report the following error after the switch to bmake: 576 577 make: illegal option -- J 578 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 579 ... 580 *** [buildworld] Error code 2 581 582 this likely due to an old instance of make in 583 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 584 which src/Makefile will use that blindly, if it exists, so if 585 you see the above error: 586 587 rm -rf `make -V MAKEPATH` 588 589 should resolve it. 590 59120130516: 592 Use bmake by default. 593 Whereas before one could choose to build with bmake via 594 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 595 make. The goal is to remove these knobs for 10-RELEASE. 596 597 It is worth noting that bmake (like gmake) treats the command 598 line as the unit of failure, rather than statements within the 599 command line. Thus '(cd some/where && dosomething)' is safer 600 than 'cd some/where; dosomething'. The '()' allows consistent 601 behavior in parallel build. 602 60320130429: 604 Fix a bug that allows NFS clients to issue READDIR on files. 605 60620130426: 607 The WITHOUT_IDEA option has been removed because 608 the IDEA patent expired. 609 61020130426: 611 The sysctl which controls TRIM support under ZFS has been renamed 612 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 613 enabled by default. 614 61520130425: 616 The mergemaster command now uses the default MAKEOBJDIRPREFIX 617 rather than creating it's own in the temporary directory in 618 order allow access to bootstrapped versions of tools such as 619 install and mtree. When upgrading from version of FreeBSD where 620 the install command does not support -l, you will need to 621 install a new mergemaster command if mergemaster -p is required. 622 This can be accomplished with the command (cd src/usr.sbin/mergemaster 623 && make install). 624 62520130404: 626 Legacy ATA stack, disabled and replaced by new CAM-based one since 627 FreeBSD 9.0, completely removed from the sources. Kernel modules 628 atadisk and atapi*, user-level tools atacontrol and burncd are 629 removed. Kernel option `options ATA_CAM` is now permanently enabled 630 and removed. 631 63220130319: 633 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 634 and socketpair(2). Software, in particular Kerberos, may 635 automatically detect and use these during building. The resulting 636 binaries will not work on older kernels. 637 63820130308: 639 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 640 information, see the respective 20130304 entry). 641 64220130304: 643 Recent commits to callout(9) changed the size of struct callout, 644 so the KBI is probably heavily disturbed. Also, some functions 645 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 646 by macros. Every kernel module using it won't load, so rebuild 647 is requested. 648 649 The ctl device has been re-enabled in GENERIC for i386 and amd64, 650 but does not initialize by default (because of the new CTL_DISABLE 651 option) to save memory. To re-enable it, remove the CTL_DISABLE 652 option from the kernel config file or set kern.cam.ctl.disable=0 653 in /boot/loader.conf. 654 65520130301: 656 The ctl device has been disabled in GENERIC for i386 and amd64. 657 This was done due to the extra memory being allocated at system 658 initialisation time by the ctl driver which was only used if 659 a CAM target device was created. This makes a FreeBSD system 660 unusable on 128MB or less of RAM. 661 66220130208: 663 A new compression method (lz4) has been merged to -HEAD. Please 664 refer to zpool-features(7) for more information. 665 666 Please refer to the "ZFS notes" section of this file for information 667 on upgrading boot ZFS pools. 668 66920130129: 670 A BSD-licensed patch(1) variant has been added and is installed 671 as bsdpatch, being the GNU version the default patch. 672 To inverse the logic and use the BSD-licensed one as default, 673 while having the GNU version installed as gnupatch, rebuild 674 and install world with the WITH_BSD_PATCH knob set. 675 67620130121: 677 Due to the use of the new -l option to install(1) during build 678 and install, you must take care not to directly set the INSTALL 679 make variable in your /etc/make.conf, /etc/src.conf, or on the 680 command line. If you wish to use the -C flag for all installs 681 you may be able to add INSTALL+=-C to /etc/make.conf or 682 /etc/src.conf. 683 68420130118: 685 The install(1) option -M has changed meaning and now takes an 686 argument that is a file or path to append logs to. In the 687 unlikely event that -M was the last option on the command line 688 and the command line contained at least two files and a target 689 directory the first file will have logs appended to it. The -M 690 option served little practical purpose in the last decade so its 691 use is expected to be extremely rare. 692 69320121223: 694 After switching to Clang as the default compiler some users of ZFS 695 on i386 systems started to experience stack overflow kernel panics. 696 Please consider using 'options KSTACK_PAGES=4' in such configurations. 697 69820121222: 699 GEOM_LABEL now mangles label names read from file system metadata. 700 Mangling affect labels containing spaces, non-printable characters, 701 '%' or '"'. Device names in /etc/fstab and other places may need to 702 be updated. 703 70420121217: 705 By default, only the 10 most recent kernel dumps will be saved. To 706 restore the previous behaviour (no limit on the number of kernel dumps 707 stored in the dump directory) add the following line to /etc/rc.conf: 708 709 savecore_flags="" 710 71120121201: 712 With the addition of auditdistd(8), a new auditdistd user is now 713 required during installworld. "mergemaster -p" can be used to 714 add the user prior to installworld, as documented in the handbook. 715 71620121117: 717 The sin6_scope_id member variable in struct sockaddr_in6 is now 718 filled by the kernel before passing the structure to the userland via 719 sysctl or routing socket. This means the KAME-specific embedded scope 720 id in sin6_addr.s6_addr[2] is always cleared in userland application. 721 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 722 __FreeBSD_version is bumped to 1000025. 723 72420121105: 725 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 726 This means that the world and kernel will be compiled with clang 727 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 728 and /usr/bin/cpp. To disable this behavior and revert to building 729 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 730 of current may need to bootstrap WITHOUT_CLANG first if the clang 731 build fails (its compatibility window doesn't extend to the 9 stable 732 branch point). 733 73420121102: 735 The IPFIREWALL_FORWARD kernel option has been removed. Its 736 functionality now turned on by default. 737 73820121023: 739 The ZERO_COPY_SOCKET kernel option has been removed and 740 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 741 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 742 mechanism which is not safe and may result in kernel crashes. 743 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 744 driver supports disposeable external page sized mbuf storage. 745 Proper replacements for both zero-copy mechanisms are under 746 consideration and will eventually lead to complete removal 747 of the two kernel options. 748 74920121023: 750 The IPv4 network stack has been converted to network byte 751 order. The following modules need to be recompiled together 752 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 753 pf(4), ipfw(4), ng_ipfw(4), stf(4). 754 75520121022: 756 Support for non-MPSAFE filesystems was removed from VFS. The 757 VFS_VERSION was bumped, all filesystem modules shall be 758 recompiled. 759 76020121018: 761 All the non-MPSAFE filesystems have been disconnected from 762 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 763 portalfs, smbfs, xfs. 764 76520121016: 766 The interface cloning API and ABI has changed. The following 767 modules need to be recompiled together with kernel: 768 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 769 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 770 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 771 77220121015: 773 The sdhci driver was split in two parts: sdhci (generic SD Host 774 Controller logic) and sdhci_pci (actual hardware driver). 775 No kernel config modifications are required, but if you 776 load sdhc as a module you must switch to sdhci_pci instead. 777 77820121014: 779 Import the FUSE kernel and userland support into base system. 780 78120121013: 782 The GNU sort(1) program has been removed since the BSD-licensed 783 sort(1) has been the default for quite some time and no serious 784 problems have been reported. The corresponding WITH_GNU_SORT 785 knob has also gone. 786 78720121006: 788 The pfil(9) API/ABI for AF_INET family has been changed. Packet 789 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 790 with new kernel. 791 79220121001: 793 The net80211(4) ABI has been changed to allow for improved driver 794 PS-POLL and power-save support. All wireless drivers need to be 795 recompiled to work with the new kernel. 796 79720120913: 798 The random(4) support for the VIA hardware random number 799 generator (`PADLOCK') is no longer enabled unconditionally. 800 Add the padlock_rng device in the custom kernel config if 801 needed. The GENERIC kernels on i386 and amd64 do include the 802 device, so the change only affects the custom kernel 803 configurations. 804 80520120908: 806 The pf(4) packet filter ABI has been changed. pfctl(8) and 807 snmp_pf module need to be recompiled to work with new kernel. 808 80920120828: 810 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 811 to -HEAD. Pools that have empty_bpobj in active state can not be 812 imported read-write with ZFS implementations that do not support 813 this feature. For more information read the zpool-features(5) 814 manual page. 815 81620120727: 817 The sparc64 ZFS loader has been changed to no longer try to auto- 818 detect ZFS providers based on diskN aliases but now requires these 819 to be explicitly listed in the OFW boot-device environment variable. 820 82120120712: 822 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 823 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 824 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 825 82620120712: 827 The following sysctls and tunables have been renamed for consistency 828 with other variables: 829 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 830 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 831 83220120628: 833 The sort utility has been replaced with BSD sort. For now, GNU sort 834 is also available as "gnusort" or the default can be set back to 835 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 836 installed as "bsdsort". 837 83820120611: 839 A new version of ZFS (pool version 5000) has been merged to -HEAD. 840 Starting with this version the old system of ZFS pool versioning 841 is superseded by "feature flags". This concept enables forward 842 compatibility against certain future changes in functionality of ZFS 843 pools. The first read-only compatible "feature flag" for ZFS pools 844 is named "com.delphix:async_destroy". For more information 845 read the new zpool-features(5) manual page. 846 Please refer to the "ZFS notes" section of this file for information 847 on upgrading boot ZFS pools. 848 84920120417: 850 The malloc(3) implementation embedded in libc now uses sources imported 851 as contrib/jemalloc. The most disruptive API change is to 852 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 853 delete it prior to installworld, and optionally re-create it using the 854 new format after rebooting. See malloc.conf(5) for details 855 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 856 NAMESPACE section). 857 85820120328: 859 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 860 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 861 now spelled mips. This is to aid compatibility with third-party 862 software that expects this naming scheme in uname(3). Little-endian 863 settings are unchanged. If you are updating a big-endian mips64 machine 864 from before this change, you may need to set MACHINE_ARCH=mips64 in 865 your environment before the new build system will recognize your machine. 866 86720120306: 868 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 869 platforms. 870 87120120229: 872 Now unix domain sockets behave "as expected" on nullfs(5). Previously 873 nullfs(5) did not pass through all behaviours to the underlying layer, 874 as a result if we bound to a socket on the lower layer we could connect 875 only to the lower path; if we bound to the upper layer we could connect 876 only to the upper path. The new behavior is one can connect to both the 877 lower and the upper paths regardless what layer path one binds to. 878 87920120211: 880 The getifaddrs upgrade path broken with 20111215 has been restored. 881 If you have upgraded in between 20111215 and 20120209 you need to 882 recompile libc again with your kernel. You still need to recompile 883 world to be able to configure CARP but this restriction already 884 comes from 20111215. 885 88620120114: 887 The set_rcvar() function has been removed from /etc/rc.subr. All 888 base and ports rc.d scripts have been updated, so if you have a 889 port installed with a script in /usr/local/etc/rc.d you can either 890 hand-edit the rcvar= line, or reinstall the port. 891 892 An easy way to handle the mass-update of /etc/rc.d: 893 rm /etc/rc.d/* && mergemaster -i 894 89520120109: 896 panic(9) now stops other CPUs in the SMP systems, disables interrupts 897 on the current CPU and prevents other threads from running. 898 This behavior can be reverted using the kern.stop_scheduler_on_panic 899 tunable/sysctl. 900 The new behavior can be incompatible with kern.sync_on_panic. 901 90220111215: 903 The carp(4) facility has been changed significantly. Configuration 904 of the CARP protocol via ifconfig(8) has changed, as well as format 905 of CARP events submitted to devd(8) has changed. See manual pages 906 for more information. The arpbalance feature of carp(4) is currently 907 not supported anymore. 908 909 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 910 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 911 need to be recompiled. 912 91320111122: 914 The acpi_wmi(4) status device /dev/wmistat has been renamed to 915 /dev/wmistat0. 916 91720111108: 918 The option VFS_ALLOW_NONMPSAFE option has been added in order to 919 explicitely support non-MPSAFE filesystems. 920 It is on by default for all supported platform at this present 921 time. 922 92320111101: 924 The broken amd(4) driver has been replaced with esp(4) in the amd64, 925 i386 and pc98 GENERIC kernel configuration files. 926 92720110930: 928 sysinstall has been removed 929 93020110923: 931 The stable/9 branch created in subversion. This corresponds to the 932 RELENG_9 branch in CVS. 933 93420110913: 935 This commit modifies vfs_register() so that it uses a hash 936 calculation to set vfc_typenum, which is enabled by default. 937 The first time a system is booted after this change, the 938 vfc_typenum values will change for all file systems. The 939 main effect of this is a change to the NFS server file handles 940 for file systems that use vfc_typenum in their fsid, such as ZFS. 941 It will, however, prevent vfc_typenum from changing when file 942 systems are loaded in a different order for subsequent reboots. 943 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 944 until you are ready to remount all NFS clients after a reboot. 945 94620110828: 947 Bump the shared library version numbers for libraries that 948 do not use symbol versioning, have changed the ABI compared 949 to stable/8 and which shared library version was not bumped. 950 Done as part of 9.0-RELEASE cycle. 951 95220110815: 953 During the merge of Capsicum features, the fget(9) KPI was modified. 954 This may require the rebuilding of out-of-tree device drivers -- 955 issues have been reported specifically with the nVidia device driver. 956 __FreeBSD_version is bumped to 900041. 957 958 Also, there is a period between 20110811 and 20110814 where the 959 special devices /dev/{stdin,stdout,stderr} did not work correctly. 960 Building world from a kernel during that window may not work. 961 96220110628: 963 The packet filter (pf) code has been updated to OpenBSD 4.5. 964 You need to update userland tools to be in sync with kernel. 965 This update breaks backward compatibility with earlier pfsync(4) 966 versions. Care must be taken when updating redundant firewall setups. 967 96820110608: 969 The following sysctls and tunables are retired on x86 platforms: 970 machdep.hlt_cpus 971 machdep.hlt_logical_cpus 972 The following sysctl is retired: 973 machdep.hyperthreading_allowed 974 The sysctls were supposed to provide a way to dynamically offline and 975 online selected CPUs on x86 platforms, but the implementation has not 976 been reliable especially with SCHED_ULE scheduler. 977 machdep.hyperthreading_allowed tunable is still available to ignore 978 hyperthreading CPUs at OS level. 979 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 980 where X is an APIC ID of a CPU. Be advised, though, that disabling 981 CPUs in non-uniform fashion will result in non-uniform topology and 982 may lead to sub-optimal system performance with SCHED_ULE, which is 983 a default scheduler. 984 98520110607: 986 cpumask_t type is retired and cpuset_t is used in order to describe 987 a mask of CPUs. 988 98920110531: 990 Changes to ifconfig(8) for dynamic address family detection mandate 991 that you are running a kernel of 20110525 or later. Make sure to 992 follow the update procedure to boot a new kernel before installing 993 world. 994 99520110513: 996 Support for sun4v architecture is officially dropped 997 99820110503: 999 Several KPI breaking changes have been committed to the mii(4) layer, 1000 the PHY drivers and consequently some Ethernet drivers using mii(4). 1001 This means that miibus.ko and the modules of the affected Ethernet 1002 drivers need to be recompiled. 1003 1004 Note to kernel developers: Given that the OUI bit reversion problem 1005 was fixed as part of these changes all mii(4) commits related to OUIs, 1006 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 1007 handling, no longer can be merged verbatim to stable/8 and previous 1008 branches. 1009 101020110430: 1011 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 1012 into their kernel configurations along with 'device pci'. 1013 101420110427: 1015 The default NFS client is now the new NFS client, so fstype "newnfs" 1016 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 1017 Although mounts via fstype "nfs" will usually work without userland 1018 changes, it is recommended that the mount(8) and mount_nfs(8) 1019 commands be rebuilt from sources and that a link to mount_nfs called 1020 mount_oldnfs be created. The new client is compiled into the 1021 kernel with "options NFSCL" and this is needed for diskless root 1022 file systems. The GENERIC kernel configs have been changed to use 1023 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 1024 To use the regular/old client, you can "mount -t oldnfs ...". For 1025 a diskless root file system, you must also include a line like: 1026 1027 vfs.root.mountfrom="oldnfs:" 1028 1029 in the boot/loader.conf on the root fs on the NFS server to make 1030 a diskless root fs use the old client. 1031 103220110424: 1033 The GENERIC kernels for all architectures now default to the new 1034 CAM-based ATA stack. It means that all legacy ATA drivers were 1035 removed and replaced by respective CAM drivers. If you are using 1036 ATA device names in /etc/fstab or other places, make sure to update 1037 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 1038 where 'Y's are the sequential numbers starting from zero for each type 1039 in order of detection, unless configured otherwise with tunables, 1040 see cam(4)). There will be symbolic links created in /dev/ to map 1041 old adX devices to the respective adaY. They should provide basic 1042 compatibility for file systems mounting in most cases, but they do 1043 not support old user-level APIs and do not have respective providers 1044 in GEOM. Consider using updated management tools with new device names. 1045 1046 It is possible to load devices ahci, ata, siis and mvs as modules, 1047 but option ATA_CAM should remain in kernel configuration to make ata 1048 module work as CAM driver supporting legacy ATA controllers. Device ata 1049 still can be used in modular fashion (atacore + ...). Modules atadisk 1050 and atapi* are not used and won't affect operation in ATA_CAM mode. 1051 Note that to use CAM-based ATA kernel should include CAM devices 1052 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1053 them are parts of the cam module. 1054 1055 ataraid(4) functionality is now supported by the RAID GEOM class. 1056 To use it you can load geom_raid kernel module and use graid(8) tool 1057 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1058 1059 No kernel config options or code have been removed, so if a problem 1060 arises, please report it and optionally revert to the old ATA stack. 1061 In order to do it you can remove from the kernel config: 1062 options ATA_CAM 1063 device ahci 1064 device mvs 1065 device siis 1066 , and instead add back: 1067 device atadisk # ATA disk drives 1068 device ataraid # ATA RAID drives 1069 device atapicd # ATAPI CDROM drives 1070 device atapifd # ATAPI floppy drives 1071 device atapist # ATAPI tape drives 1072 107320110423: 1074 The default NFS server has been changed to the new server, which 1075 was referred to as the experimental server. If you need to switch 1076 back to the old NFS server, you must now put the "-o" option on 1077 both the mountd and nfsd commands. This can be done using the 1078 mountd_flags and nfs_server_flags rc.conf variables until an 1079 update to the rc scripts is committed, which is coming soon. 1080 108120110418: 1082 The GNU Objective-C runtime library (libobjc), and other Objective-C 1083 related components have been removed from the base system. If you 1084 require an Objective-C library, please use one of the available ports. 1085 108620110331: 1087 ath(4) has been split into bus- and device- modules. if_ath contains 1088 the HAL, the TX rate control and the network device code. if_ath_pci 1089 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1090 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1091 in order to use ath on everything else. 1092 1093 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1094 need to load if_ath and if_ath_pci for ath(4) operation. 1095 109620110314: 1097 As part of the replacement of sysinstall, the process of building 1098 release media has changed significantly. For details, please re-read 1099 release(7), which has been updated to reflect the new build process. 1100 110120110218: 1102 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1103 is the last available version under GPLv2. It brings a number of new 1104 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1105 4.1 and SSE 4.2), better support for powerpc64, a number of new 1106 directives, and lots of other small improvements. See the ChangeLog 1107 file in contrib/binutils for the full details. 1108 110920110218: 1110 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1111 compliant, and will now use half of hash for authentication. 1112 This will break interoperability with all stacks (including all 1113 actual FreeBSD versions) who implement 1114 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1115 authentication). 1116 The only workaround with such peers is to use another HMAC 1117 algorithm for IPsec ("phase 2") authentication. 1118 111920110207: 1120 Remove the uio_yield prototype and symbol. This function has 1121 been misnamed since it was introduced and should not be 1122 globally exposed with this name. The equivalent functionality 1123 is now available using kern_yield(curthread->td_user_pri). 1124 The function remains undocumented. 1125 112620110112: 1127 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1128 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1129 for scalar sysctls is defined but disabled. Code that needs 1130 UQUAD to pass the type checking that must compile on older 1131 systems where the define is not present can check against 1132 __FreeBSD_version >= 900030. 1133 1134 The system dialog(1) has been replaced with a new version previously 1135 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1136 with the previous version, but the libdialog associated with it has 1137 a largely incompatible API. As such, the original version of libdialog 1138 will be kept temporarily as libodialog, until its base system consumers 1139 are replaced or updated. Bump __FreeBSD_version to 900030. 1140 114120110103: 1142 If you are trying to run make universe on a -stable system, and you get 1143 the following warning: 1144 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1145 unknown. config(8) likely too old." 1146 or something similar to it, then you must upgrade your -stable system 1147 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1148 stable/8) or build the config from the latest stable/8 branch and 1149 install it on your system. 1150 1151 Prior to this date, building a current universe on 8-stable system from 1152 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1153 error in the first kernel build phase. A new config on those old 1154 systems will fix that problem for older versions of -current. 1155 115620101228: 1157 The TCP stack has been modified to allow Khelp modules to interact with 1158 it via helper hook points and store per-connection data in the TCP 1159 control block. Bump __FreeBSD_version to 900029. User space tools that 1160 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1161 be recompiled. 1162 116320101114: 1164 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1165 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1166 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1167 to take advantage of it instead of using custom implementations. This 1168 means that these drivers now no longer unconditionally advertise 1169 support for flow control but only do so if flow control is a selected 1170 media option. This was implemented in the generic support that way in 1171 order to allow flow control to be switched on and off via ifconfig(8) 1172 with the PHY specific default to typically off in order to protect 1173 from unwanted effects. Consequently, if you used flow control with 1174 one of the above mentioned drivers you now need to explicitly enable 1175 it, for example via: 1176 ifconfig bge0 media auto mediaopt flowcontrol 1177 1178 Along with the above mentioned changes generic support for setting 1179 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1180 e1000phy(4) as well as ip1000phy(4) have been converted to take 1181 advantage of it. This means that these drivers now no longer take the 1182 link0 parameter for selecting master mode but the master media option 1183 has to be used instead, for example like in the following: 1184 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1185 1186 Selection of master mode now is also available with all other PHY 1187 drivers supporting 1000baseT. 1188 118920101111: 1190 The TCP stack has received a significant update to add support for 1191 modularised congestion control and generally improve the clarity of 1192 congestion control decisions. Bump __FreeBSD_version to 900025. User 1193 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1194 sockstat) need to be recompiled. 1195 119620101002: 1197 The man(1) utility has been replaced by a new version that no longer 1198 uses /etc/manpath.config. Please consult man.conf(5) for how to 1199 migrate local entries to the new format. 1200 120120100928: 1202 The copyright strings printed by login(1) and sshd(8) at the time of a 1203 new connection have been removed to follow other operating systems and 1204 upstream sshd. 1205 120620100915: 1207 A workaround for a fixed ld bug has been removed in kernel code, 1208 so make sure that your system ld is built from sources after 1209 revision 210245 from 2010-07-19 (r211583 if building head kernel 1210 on stable/8, r211584 for stable/7; both from 2010-08-21). 1211 A symptom of incorrect ld version is different addresses for 1212 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1213 121420100913: 1215 The $ipv6_prefer variable in rc.conf(5) has been split into 1216 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1217 1218 The $ip6addrctl_policy is a variable to choose a pre-defined 1219 address selection policy set by ip6addrctl(8). A value 1220 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1221 default is "AUTO". 1222 1223 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1224 flag (see an entry of 20090926) is set on an interface with no 1225 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1226 security reason. If you want IPv6 link-local address on all 1227 interfaces by default, set this to "YES". 1228 1229 The old ipv6_prefer="YES" is equivalent to 1230 ipv6_activate_all_interfaces="YES" and 1231 ip6addrctl_policy="ipv6_prefer". 1232 123320100913: 1234 DTrace has grown support for userland tracing. Due to this, DTrace is 1235 now i386 and amd64 only. 1236 dtruss(1) is now installed by default on those systems and a new 1237 kernel module is needed for userland tracing: fasttrap. 1238 No changes to your kernel config file are necessary to enable 1239 userland tracing, but you might consider adding 'STRIP=' and 1240 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1241 to have informative userland stack traces in DTrace (ustack). 1242 124320100725: 1244 The acpi_aiboost(4) driver has been removed in favor of the new 1245 aibs(4) driver. You should update your kernel configuration file. 1246 124720100722: 1248 BSD grep has been imported to the base system and it is built by 1249 default. It is completely BSD licensed, highly GNU-compatible, uses 1250 less memory than its GNU counterpart and has a small codebase. 1251 However, it is slower than its GNU counterpart, which is mostly 1252 noticeable for larger searches, for smaller ones it is measurable 1253 but not significant. The reason is complex, the most important factor 1254 is that we lack a modern and efficient regex library and GNU 1255 overcomes this by optimizing the searches internally. Future work 1256 on improving the regex performance is planned, for the meantime, 1257 users that need better performance, can build GNU grep instead by 1258 setting the WITH_GNU_GREP knob. 1259 126020100713: 1261 Due to the import of powerpc64 support, all existing powerpc kernel 1262 configuration files must be updated with a machine directive like this: 1263 machine powerpc powerpc 1264 1265 In addition, an updated config(8) is required to build powerpc kernels 1266 after this change. 1267 126820100713: 1269 A new version of ZFS (version 15) has been merged to -HEAD. 1270 This version uses a python library for the following subcommands: 1271 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1272 For full functionality of these commands the following port must 1273 be installed: sysutils/py-zfs 1274 127520100429: 1276 'vm_page's are now hashed by physical address to an array of mutexes. 1277 Currently this is only used to serialize access to hold_count. Over 1278 time the page queue mutex will be peeled away. This changes the size 1279 of pmap on every architecture. And requires all callers of vm_page_hold 1280 and vm_page_unhold to be updated. 1281 128220100402: 1283 WITH_CTF can now be specified in src.conf (not recommended, there 1284 are some problems with static executables), make.conf (would also 1285 affect ports which do not use GNU make and do not override the 1286 compile targets) or in the kernel config (via "makeoptions 1287 WITH_CTF=yes"). 1288 When WITH_CTF was specified there before this was silently ignored, 1289 so make sure that WITH_CTF is not used in places which could lead 1290 to unwanted behavior. 1291 129220100311: 1293 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1294 to allow 32-bit compatibility on non-x86 platforms. All kernel 1295 configurations on amd64 and ia64 platforms using these options must 1296 be modified accordingly. 1297 129820100113: 1299 The utmp user accounting database has been replaced with utmpx, 1300 the user accounting interface standardized by POSIX. 1301 Unfortunately the semantics of utmp and utmpx don't match, 1302 making it practically impossible to support both interfaces. 1303 The user accounting database is used by tools like finger(1), 1304 last(1), talk(1), w(1) and ac(8). 1305 1306 All applications in the base system use utmpx. This means only 1307 local binaries (e.g. from the ports tree) may still use these 1308 utmp database files. These applications must be rebuilt to make 1309 use of utmpx. 1310 1311 After the system has been upgraded, it is safe to remove the old 1312 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1313 assuming their contents is of no importance anymore. Old wtmp 1314 databases can only be used by last(1) and ac(8) after they have 1315 been converted to the new format using wtmpcvt(1). 1316 131720100108: 1318 Introduce the kernel thread "deadlock resolver" (which can be enabled 1319 via the DEADLKRES option, see NOTES for more details) and the 1320 sleepq_type() function for sleepqueues. 1321 132220091202: 1323 The rc.firewall and rc.firewall6 were unified, and 1324 rc.firewall6 and rc.d/ip6fw were removed. 1325 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1326 variables are obsoleted. Instead, the following new rc 1327 variables are added to rc.d/ipfw: 1328 1329 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1330 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1331 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1332 1333 The meanings correspond to the relevant IPv4 variables. 1334 133520091125: 1336 8.0-RELEASE. 1337 133820091113: 1339 The default terminal emulation for syscons(4) has been changed 1340 from cons25 to xterm on all platforms except pc98. This means 1341 that the /etc/ttys file needs to be updated to ensure correct 1342 operation of applications on the console. 1343 1344 The terminal emulation style can be toggled per window by using 1345 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1346 options can be used to change the compile-time default back to 1347 cons25. 1348 1349 To prevent graphical artifacts, make sure the TERM environment 1350 variable is set to match the terminal emulation that is being 1351 performed by syscons(4). 1352 135320091109: 1354 The layout of the structure ieee80211req_scan_result has changed. 1355 Applications that require wireless scan results (e.g. ifconfig(8)) 1356 from net80211 need to be recompiled. 1357 1358 Applications such as wpa_supplicant(8) may require a full world 1359 build without using NO_CLEAN in order to get synchronized with the 1360 new structure. 1361 136220091025: 1363 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1364 There's one kernel module for each firmware. Adding "device iwnfw" 1365 to the kernel configuration file means including all three firmware 1366 images inside the kernel. If you want to include just the one for 1367 your wireless card, use the devices iwn4965fw, iwn5000fw or 1368 iwn5150fw. 1369 137020090926: 1371 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1372 into rc.d/netif. The changes are the following: 1373 1374 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1375 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1376 Note that both variables need the "inet6" keyword at the head. 1377 1378 Do not set $ipv6_network_interfaces manually if you do not 1379 understand what you are doing. It is not needed in most cases. 1380 1381 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1382 they are obsolete. 1383 1384 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1385 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1386 1387 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1388 all configured interfaces have "inet6 accept_rtadv" in the 1389 $ifconfig_IF_ipv6. These are for backward compatibility. 1390 1391 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1392 functionality of interfaces with no corresponding 1393 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1394 and the default address selection policy of ip6addrctl(8) 1395 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1396 Note that if you want to configure IPv6 functionality on the 1397 disabled interfaces after boot, first you need to clear the flag by 1398 using ifconfig(8) like: 1399 1400 ifconfig em0 inet6 -ifdisabled 1401 1402 If YES, the default address selection policy is set as 1403 IPv6-preferred. 1404 1405 The default value of $ipv6_prefer is NO. 1406 1407 4. If your system need to receive Router Advertisement messages, 1408 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1409 scripts automatically invoke rtsol(8) when the interface becomes 1410 UP. The Router Advertisement messages are used for SLAAC 1411 (State-Less Address AutoConfiguration). 1412 141320090922: 1414 802.11s D3.03 support was committed. This is incompatible with the 1415 previous code, which was based on D3.0. 1416 141720090912: 1418 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1419 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1420 control whether accepting Router Advertisement messages or not. 1421 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1422 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1423 The ifconfig(8) utility now supports these flags. 1424 142520090910: 1426 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1427 mount(8) and -a option for df(1) to see them. 1428 142920090825: 1430 The old tunable hw.bus.devctl_disable has been superseded by 1431 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1432 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1433 is 1000. 1434 143520090813: 1436 Remove the option STOP_NMI. The default action is now to use NMI only 1437 for KDB via the newly introduced function stop_cpus_hard() and 1438 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1439 144020090803: 1441 The stable/8 branch created in subversion. This corresponds to the 1442 RELENG_8 branch in CVS. 1443 144420090719: 1445 Bump the shared library version numbers for all libraries that do not 1446 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1447 __FreeBSD_version to 800105. 1448 144920090714: 1450 Due to changes in the implementation of virtual network stack support, 1451 all network-related kernel modules must be recompiled. As this change 1452 breaks the ABI, bump __FreeBSD_version to 800104. 1453 145420090713: 1455 The TOE interface to the TCP syncache has been modified to remove 1456 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1457 The cxgb driver is the only TOE consumer affected by this change, and 1458 needs to be recompiled along with the kernel. As this change breaks 1459 the ABI, bump __FreeBSD_version to 800103. 1460 146120090712: 1462 Padding has been added to struct tcpcb, sackhint and tcpstat in 1463 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1464 maintaining the ABI. However, this change breaks the ABI, so bump 1465 __FreeBSD_version to 800102. User space tools that rely on the size of 1466 any of these structs (e.g. sockstat) need to be recompiled. 1467 146820090630: 1469 The NFS_LEGACYRPC option has been removed along with the old kernel 1470 RPC implementation that this option selected. Kernel configurations 1471 may need to be adjusted. 1472 147320090629: 1474 The network interface device nodes at /dev/net/<interface> have been 1475 removed. All ioctl operations can be performed the normal way using 1476 routing sockets. The kqueue functionality can generally be replaced 1477 with routing sockets. 1478 147920090628: 1480 The documentation from the FreeBSD Documentation Project (Handbook, 1481 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1482 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1483 148420090624: 1485 The ABI of various structures related to the SYSV IPC API have been 1486 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1487 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1488 800100. 1489 149020090622: 1491 Layout of struct vnet has changed as routing related variables were 1492 moved to their own Vimage module. Modules need to be recompiled. Bump 1493 __FreeBSD_version to 800099. 1494 149520090619: 1496 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1497 respectively. As long as no more than 16 groups per process are used, 1498 no changes should be visible. When more than 16 groups are used, old 1499 binaries may fail if they call getgroups() or getgrouplist() with 1500 statically sized storage. Recompiling will work around this, but 1501 applications should be modified to use dynamically allocated storage 1502 for group arrays as POSIX.1-2008 does not cap an implementation's 1503 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1504 1505 NFS and portalfs mounts may also be affected as the list of groups is 1506 truncated to 16. Users of NFS who use more than 16 groups, should 1507 take care that negative group permissions are not used on the exported 1508 file systems as they will not be reliable unless a GSSAPI based 1509 authentication method is used. 1510 151120090616: 1512 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1513 option compiles in the support for adaptive spinning for lockmgrs 1514 which want to enable it. The lockinit() function now accepts the flag 1515 LK_ADAPTIVE in order to make the lock object subject to adaptive 1516 spinning when both held in write and read mode. 1517 151820090613: 1519 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1520 changed. User applications that use this ioctl need to be rebuilt. 1521 152220090611: 1523 The layout of struct thread has changed. Kernel and modules need to 1524 be rebuilt. 1525 152620090608: 1527 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1528 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1529 153020090602: 1531 window(1) has been removed from the base system. It can now be 1532 installed from ports. The port is called misc/window. 1533 153420090601: 1535 The way we are storing and accessing `routing table' entries has 1536 changed. Programs reading the FIB, like netstat, need to be 1537 re-compiled. 1538 153920090601: 1540 A new netisr implementation has been added for FreeBSD 8. Network 1541 file system modules, such as igmp, ipdivert, and others, should be 1542 rebuilt. 1543 Bump __FreeBSD_version to 800096. 1544 154520090530: 1546 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1547 more valid. 1548 154920090530: 1550 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1551 Bump __FreeBSD_version to 800094. 1552 155320090529: 1554 Add mnt_xflag field to 'struct mount'. File system modules need to be 1555 rebuilt. 1556 Bump __FreeBSD_version to 800093. 1557 155820090528: 1559 The compiling option ADAPTIVE_SX has been retired while it has been 1560 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1561 The KPI for sx_init_flags() changes as accepting flags: 1562 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1563 been introduced in order to handle the reversed logic. 1564 Bump __FreeBSD_version to 800092. 1565 156620090527: 1567 Add support for hierarchical jails. Remove global securelevel. 1568 Bump __FreeBSD_version to 800091. 1569 157020090523: 1571 The layout of struct vnet_net has changed, therefore modules 1572 need to be rebuilt. 1573 Bump __FreeBSD_version to 800090. 1574 157520090523: 1576 The newly imported zic(8) produces a new format in the output. Please 1577 run tzsetup(8) to install the newly created data to /etc/localtime. 1578 157920090520: 1580 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1581 hw.usb.* and is now consistent again with previous releases. 1582 158320090520: 1584 802.11 monitor mode support was revised and driver api's were changed. 1585 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1586 of DLT_IEEE802_11. No user-visible data structures were changed but 1587 applications that use DLT_IEEE802_11 may require changes. 1588 Bump __FreeBSD_version to 800088. 1589 159020090430: 1591 The layout of the following structs has changed: sysctl_oid, 1592 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1593 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1594 panics may be experienced. World rebuild is required for 1595 correctly checking networking state from userland. 1596 Bump __FreeBSD_version to 800085. 1597 159820090429: 1599 MLDv2 and Source-Specific Multicast (SSM) have been merged 1600 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1601 The implementation of SSM within FreeBSD's IPv6 stack closely 1602 follows the IPv4 implementation. 1603 1604 For kernel developers: 1605 1606 * The most important changes are that the ip6_output() and 1607 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1608 and this lock has been downgraded to a non-recursive mutex. 1609 1610 * As with the changes to the IPv4 stack to support SSM, filtering 1611 of inbound multicast traffic must now be performed by transport 1612 protocols within the IPv6 stack. This does not apply to TCP and 1613 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1614 1615 * The KPIs used by IPv6 multicast are similar to those used by 1616 the IPv4 stack, with the following differences: 1617 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1618 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1619 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1620 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1621 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1622 for MLDv1 have an additional 'timer' argument which is used to 1623 jitter the initial membership report for the solicited-node 1624 multicast membership on-link. 1625 * This is not strictly needed for MLDv2, which already jitters 1626 its report transmissions. However, the 'timer' argument is 1627 preserved in case MLDv1 is active on the interface. 1628 1629 * The KAME linked-list based IPv6 membership implementation has 1630 been refactored to use a vector similar to that used by the IPv4 1631 stack. 1632 Code which maintains a list of its own multicast memberships 1633 internally, e.g. carp, has been updated to reflect the new 1634 semantics. 1635 1636 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1637 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1638 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1639 implementation constraint which needs to be addressed in HEAD. 1640 1641 For application developers: 1642 1643 * The changes are broadly similar to those made for the IPv4 1644 stack. 1645 1646 * The use of IPv4 and IPv6 multicast socket options on the same 1647 socket, using mapped addresses, HAS NOT been tested or supported. 1648 1649 * There are a number of issues with the implementation of various 1650 IPv6 multicast APIs which need to be resolved in the API surface 1651 before the implementation is fully compatible with KAME userland 1652 use, and these are mostly to do with interface index treatment. 1653 1654 * The literature available discusses the use of either the delta / ASM 1655 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1656 using setsourcefilter(3)/getsourcefilter(3). For more information 1657 please refer to RFC 3768, 'Socket Interface Extensions for 1658 Multicast Source Filters'. 1659 1660 * Applications which use the published RFC 3678 APIs should be fine. 1661 1662 For systems administrators: 1663 1664 * The mtest(8) utility has been refactored to support IPv6, in 1665 addition to IPv4. Interface addresses are no longer accepted 1666 as arguments, their names must be used instead. The utility 1667 will map the interface name to its first IPv4 address as 1668 returned by getifaddrs(3). 1669 1670 * The ifmcstat(8) utility has also been updated to print the MLDv2 1671 endpoint state and source filter lists via sysctl(3). 1672 1673 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1674 loopback of IPv6 multicast datagrams by default; it defaults to 1 1675 to preserve the existing behaviour. Disabling multicast loopback is 1676 recommended for optimal system performance. 1677 1678 * The IPv6 MROUTING code has been changed to examine this sysctl 1679 instead of attempting to perform a group lookup before looping 1680 back forwarded datagrams. 1681 1682 Bump __FreeBSD_version to 800084. 1683 168420090422: 1685 Implement low-level Bluetooth HCI API. 1686 Bump __FreeBSD_version to 800083. 1687 168820090419: 1689 The layout of struct malloc_type, used by modules to register new 1690 memory allocation types, has changed. Most modules will need to 1691 be rebuilt or panics may be experienced. 1692 Bump __FreeBSD_version to 800081. 1693 169420090415: 1695 Anticipate overflowing inp_flags - add inp_flags2. 1696 This changes most offsets in inpcb, so checking v4 connection 1697 state will require a world rebuild. 1698 Bump __FreeBSD_version to 800080. 1699 170020090415: 1701 Add an llentry to struct route and struct route_in6. Modules 1702 embedding a struct route will need to be recompiled. 1703 Bump __FreeBSD_version to 800079. 1704 170520090414: 1706 The size of rt_metrics_lite and by extension rtentry has changed. 1707 Networking administration apps will need to be recompiled. 1708 The route command now supports show as an alias for get, weighting 1709 of routes, sticky and nostick flags to alter the behavior of stateful 1710 load balancing. 1711 Bump __FreeBSD_version to 800078. 1712 171320090408: 1714 Do not use Giant for kbdmux(4) locking. This is wrong and 1715 apparently causing more problems than it solves. This will 1716 re-open the issue where interrupt handlers may race with 1717 kbdmux(4) in polling mode. Typical symptoms include (but 1718 not limited to) duplicated and/or missing characters when 1719 low level console functions (such as gets) are used while 1720 interrupts are enabled (for example geli password prompt, 1721 mountroot prompt etc.). Disabling kbdmux(4) may help. 1722 172320090407: 1724 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1725 kernel modules referencing any of the above need to be recompiled. 1726 Bump __FreeBSD_version to 800075. 1727 172820090320: 1729 GEOM_PART has become the default partition slicer for storage devices, 1730 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1731 introduces some changes: 1732 1733 MSDOS/EBR: the devices created from MSDOS extended partition entries 1734 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1735 to devices with offset-based names. fstabs may need to be modified. 1736 1737 BSD: the "geometry does not match label" warning is harmless in most 1738 cases but it points to problems in file system misalignment with 1739 disk geometry. The "c" partition is now implicit, covers the whole 1740 top-level drive and cannot be (mis)used by users. 1741 1742 General: Kernel dumps are now not allowed to be written to devices 1743 whose partition types indicate they are meant to be used for file 1744 systems (or, in case of MSDOS partitions, as something else than 1745 the "386BSD" type). 1746 1747 Most of these changes date approximately from 200812. 1748 174920090319: 1750 The uscanner(4) driver has been removed from the kernel. This follows 1751 Linux removing theirs in 2.6 and making libusb the default interface 1752 (supported by sane). 1753 175420090319: 1755 The multicast forwarding code has been cleaned up. netstat(1) 1756 only relies on KVM now for printing bandwidth upcall meters. 1757 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1758 ip6_mroute_mod respectively. The config(5) options for statically 1759 compiling this code remain the same, i.e. 'options MROUTING'. 1760 176120090315: 1762 Support for the IFF_NEEDSGIANT network interface flag has been 1763 removed, which means that non-MPSAFE network device drivers are no 1764 longer supported. In particular, if_ar, if_sr, and network device 1765 drivers from the old (legacy) USB stack can no longer be built or 1766 used. 1767 176820090313: 1769 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1770 a bunch of new language catalog files have also been added. 1771 This means that some common libc messages are now localized and 1772 they depend on the LC_MESSAGES environmental variable. 1773 177420090313: 1775 The k8temp(4) driver has been renamed to amdtemp(4) since 1776 support for Family 10 and Family 11 CPU families was added. 1777 177820090309: 1779 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1780 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1781 1782 For kernel developers, the most important changes are that the 1783 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1784 and this lock has been downgraded to a non-recursive mutex. 1785 1786 Transport protocols (UDP, Raw IP) are now responsible for filtering 1787 inbound multicast traffic according to group membership and source 1788 filters. The imo_multicast_filter() KPI exists for this purpose. 1789 Transports which do not use multicast (SCTP, TCP) already reject 1790 multicast by default. Forwarding and receive performance may improve 1791 as a mutex acquisition is no longer needed in the ip_input() 1792 low-level input path. in_addmulti() and in_delmulti() are shimmed 1793 to new KPIs which exist to support SSM in-kernel. 1794 1795 For application developers, it is recommended that loopback of 1796 multicast datagrams be disabled for best performance, as this 1797 will still cause the lock to be taken for each looped-back 1798 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1799 be tuned to 0 to disable loopback by default; it defaults to 1 1800 to preserve the existing behaviour. 1801 1802 For systems administrators, to obtain best performance with 1803 multicast reception and multiple groups, it is always recommended 1804 that a card with a suitably precise hash filter is used. Hash 1805 collisions will still result in the lock being taken within the 1806 transport protocol input path to check group membership. 1807 1808 If deploying FreeBSD in an environment with IGMP snooping switches, 1809 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1810 enabled; this forces 224.0.0.0/24 group membership to be announced 1811 via IGMP. 1812 1813 The size of 'struct igmpstat' has changed; netstat needs to be 1814 recompiled to reflect this. 1815 Bump __FreeBSD_version to 800070. 1816 181720090309: 1818 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1819 updated to use it. This requires a buildworld/installworld in order to 1820 update the library and dependencies (usbconfig, etc). Its advisable to 1821 rebuild all ports which uses libusb. More specific directions are given 1822 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1823 libusb are no longer required and can be removed. 1824 182520090302: 1826 A workaround is committed to allow the creation of System V shared 1827 memory segment of size > 2 GB on the 64-bit architectures. 1828 Due to a limitation of the existing ABI, the shm_segsz member 1829 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1830 wrong for large segments. Note that limits must be explicitly 1831 raised to allow such segments to be created. 1832 183320090301: 1834 The layout of struct ifnet has changed, requiring a rebuild of all 1835 network device driver modules. 1836 183720090227: 1838 The /dev handling for the new USB stack has changed, a 1839 buildworld/installworld is required for libusb20. 1840 184120090223: 1842 The new USB2 stack has now been permanently moved in and all kernel and 1843 module names reverted to their previous values (eg, usb, ehci, ohci, 1844 ums, ...). The old usb stack can be compiled in by prefixing the name 1845 with the letter 'o', the old usb modules have been removed. 1846 Updating entry 20090216 for xorg and 20090215 for libmap may still 1847 apply. 1848 184920090217: 1850 The rc.conf(5) option if_up_delay has been renamed to 1851 defaultroute_delay to better reflect its purpose. If you have 1852 customized this setting in /etc/rc.conf you need to update it to 1853 use the new name. 1854 185520090216: 1856 xorg 7.4 wants to configure its input devices via hald which does not 1857 yet work with USB2. If the keyboard/mouse does not work in xorg then 1858 add 1859 Option "AllowEmptyInput" "off" 1860 to your ServerLayout section. This will cause X to use the configured 1861 kbd and mouse sections from your xorg.conf. 1862 186320090215: 1864 The GENERIC kernels for all architectures now default to the new USB2 1865 stack. No kernel config options or code have been removed so if a 1866 problem arises please report it and optionally revert to the old USB 1867 stack. If you are loading USB kernel modules or have a custom kernel 1868 that includes GENERIC then ensure that usb names are also changed over, 1869 eg uftdi -> usb2_serial_ftdi. 1870 1871 Older programs linked against the ports libusb 0.1 need to be 1872 redirected to the new stack's libusb20. /etc/libmap.conf can 1873 be used for this: 1874 # Map old usb library to new one for usb2 stack 1875 libusb-0.1.so.8 libusb20.so.1 1876 187720090209: 1878 All USB ethernet devices now attach as interfaces under the name ueN 1879 (eg. ue0). This is to provide a predictable name as vendors often 1880 change usb chipsets in a product without notice. 1881 188220090203: 1883 The ichsmb(4) driver has been changed to require SMBus slave 1884 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1885 All of the other SMBus controller drivers require left-justified 1886 slave addresses, so this change makes all the drivers provide the 1887 same interface. 1888 188920090201: 1890 INET6 statistics (struct ip6stat) was updated. 1891 netstat(1) needs to be recompiled. 1892 189320090119: 1894 NTFS has been removed from GENERIC kernel on amd64 to match 1895 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1896 will load ntfs.ko module automatically when NTFS support is 1897 actually needed, unless ntfs.ko is not installed or security 1898 level prohibits loading kernel modules. If either is the case, 1899 "options NTFS" has to be added into kernel config. 1900 190120090115: 1902 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1903 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1904 800061. User space tools that rely on the size of struct tcpcb in 1905 tcp_var.h (e.g. sockstat) need to be recompiled. 1906 190720081225: 1908 ng_tty(4) module updated to match the new TTY subsystem. 1909 Due to API change, user-level applications must be updated. 1910 New API support added to mpd5 CVS and expected to be present 1911 in next mpd5.3 release. 1912 191320081219: 1914 With __FreeBSD_version 800060 the makefs tool is part of 1915 the base system (it was a port). 1916 191720081216: 1918 The afdata and ifnet locks have been changed from mutexes to 1919 rwlocks, network modules will need to be re-compiled. 1920 192120081214: 1922 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1923 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1924 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1925 architecture and 40 bytes on 64-bit architecture. The userland 1926 applications "arp" and "ndp" have been updated accordingly. 1927 The output from "netstat -r" shows only routing entries and 1928 none of the L2 information. 1929 193020081130: 1931 __FreeBSD_version 800057 marks the switchover from the 1932 binary ath hal to source code. Users must add the line: 1933 1934 options AH_SUPPORT_AR5416 1935 1936 to their kernel config files when specifying: 1937 1938 device ath_hal 1939 1940 The ath_hal module no longer exists; the code is now compiled 1941 together with the driver in the ath module. It is now 1942 possible to tailor chip support (i.e. reduce the set of chips 1943 and thereby the code size); consult ath_hal(4) for details. 1944 194520081121: 1946 __FreeBSD_version 800054 adds memory barriers to 1947 <machine/atomic.h>, new interfaces to ifnet to facilitate 1948 multiple hardware transmit queues for cards that support 1949 them, and a lock-less ring-buffer implementation to 1950 enable drivers to more efficiently manage queueing of 1951 packets. 1952 195320081117: 1954 A new version of ZFS (version 13) has been merged to -HEAD. 1955 This version has zpool attribute "listsnapshots" off by 1956 default, which means "zfs list" does not show snapshots, 1957 and is the same as Solaris behavior. 1958 195920081028: 1960 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1961 196220081009: 1963 The uhci, ohci, ehci and slhci USB Host controller drivers have 1964 been put into separate modules. If you load the usb module 1965 separately through loader.conf you will need to load the 1966 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1967 controller add the following to loader.conf: 1968 1969 uhci_load="YES" 1970 ehci_load="YES" 1971 197220081009: 1973 The ABI used by the PMC toolset has changed. Please keep 1974 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1975 sync. 1976 197720081009: 1978 atapci kernel module now includes only generic PCI ATA 1979 driver. AHCI driver moved to ataahci kernel module. 1980 All vendor-specific code moved into separate kernel modules: 1981 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1982 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1983 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1984 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1985 198620080820: 1987 The TTY subsystem of the kernel has been replaced by a new 1988 implementation, which provides better scalability and an 1989 improved driver model. Most common drivers have been migrated to 1990 the new TTY subsystem, while others have not. The following 1991 drivers have not yet been ported to the new TTY layer: 1992 1993 PCI/ISA: 1994 cy, digi, rc, rp, sio 1995 1996 USB: 1997 ubser, ucycom 1998 1999 Line disciplines: 2000 ng_h4, ng_tty, ppp, sl, snp 2001 2002 Adding these drivers to your kernel configuration file shall 2003 cause compilation to fail. 2004 200520080818: 2006 ntpd has been upgraded to 4.2.4p5. 2007 200820080801: 2009 OpenSSH has been upgraded to 5.1p1. 2010 2011 For many years, FreeBSD's version of OpenSSH preferred DSA 2012 over RSA for host and user authentication keys. With this 2013 upgrade, we've switched to the vendor's default of RSA over 2014 DSA. This may cause upgraded clients to warn about unknown 2015 host keys even for previously known hosts. Users should 2016 follow the usual procedure for verifying host keys before 2017 accepting the RSA key. 2018 2019 This can be circumvented by setting the "HostKeyAlgorithms" 2020 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 2021 command line. 2022 2023 Please note that the sequence of keys offered for 2024 authentication has been changed as well. You may want to 2025 specify IdentityFile in a different order to revert this 2026 behavior. 2027 202820080713: 2029 The sio(4) driver has been removed from the i386 and amd64 2030 kernel configuration files. This means uart(4) is now the 2031 default serial port driver on those platforms as well. 2032 2033 To prevent collisions with the sio(4) driver, the uart(4) driver 2034 uses different names for its device nodes. This means the 2035 onboard serial port will now most likely be called "ttyu0" 2036 instead of "ttyd0". You may need to reconfigure applications to 2037 use the new device names. 2038 2039 When using the serial port as a boot console, be sure to update 2040 /boot/device.hints and /etc/ttys before booting the new kernel. 2041 If you forget to do so, you can still manually specify the hints 2042 at the loader prompt: 2043 2044 set hint.uart.0.at="isa" 2045 set hint.uart.0.port="0x3F8" 2046 set hint.uart.0.flags="0x10" 2047 set hint.uart.0.irq="4" 2048 boot -s 2049 205020080609: 2051 The gpt(8) utility has been removed. Use gpart(8) to partition 2052 disks instead. 2053 205420080603: 2055 The version that Linuxulator emulates was changed from 2.4.2 2056 to 2.6.16. If you experience any problems with Linux binaries 2057 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2058 if it fixes the problem contact emulation mailing list. 2059 206020080525: 2061 ISDN4BSD (I4B) was removed from the src tree. You may need to 2062 update a your kernel configuration and remove relevant entries. 2063 206420080509: 2065 I have checked in code to support multiple routing tables. 2066 See the man pages setfib(1) and setfib(2). 2067 This is a hopefully backwards compatible version, 2068 but to make use of it you need to compile your kernel 2069 with options ROUTETABLES=2 (or more up to 16). 2070 207120080420: 2072 The 802.11 wireless support was redone to enable multi-bss 2073 operation on devices that are capable. The underlying device 2074 is no longer used directly but instead wlanX devices are 2075 cloned with ifconfig. This requires changes to rc.conf files. 2076 For example, change: 2077 ifconfig_ath0="WPA DHCP" 2078 to 2079 wlans_ath0=wlan0 2080 ifconfig_wlan0="WPA DHCP" 2081 see rc.conf(5) for more details. In addition, mergemaster of 2082 /etc/rc.d is highly recommended. Simultaneous update of userland 2083 and kernel wouldn't hurt either. 2084 2085 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2086 modules were merged into the base wlan module. All references 2087 to these modules (e.g. in kernel config files) must be removed. 2088 208920080408: 2090 psm(4) has gained write(2) support in native operation level. 2091 Arbitrary commands can be written to /dev/psm%d and status can 2092 be read back from it. Therefore, an application is responsible 2093 for status validation and error recovery. It is a no-op in 2094 other operation levels. 2095 209620080312: 2097 Support for KSE threading has been removed from the kernel. To 2098 run legacy applications linked against KSE libmap.conf may 2099 be used. The following libmap.conf may be used to ensure 2100 compatibility with any prior release: 2101 2102 libpthread.so.1 libthr.so.1 2103 libpthread.so.2 libthr.so.2 2104 libkse.so.3 libthr.so.3 2105 210620080301: 2107 The layout of struct vmspace has changed. This affects libkvm 2108 and any executables that link against libkvm and use the 2109 kvm_getprocs() function. In particular, but not exclusively, 2110 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2111 The effects are minimal, but it's advisable to upgrade world 2112 nonetheless. 2113 211420080229: 2115 The latest em driver no longer has support in it for the 2116 82575 adapter, this is now moved to the igb driver. The 2117 split was done to make new features that are incompatible 2118 with older hardware easier to do. 2119 212020080220: 2121 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2122 likewise the kernel option is now GEOM_LINUX_LVM. 2123 212420080211: 2125 The default NFS mount mode has changed from UDP to TCP for 2126 increased reliability. If you rely on (insecurely) NFS 2127 mounting across a firewall you may need to update your 2128 firewall rules. 2129 213020080208: 2131 Belatedly note the addition of m_collapse for compacting 2132 mbuf chains. 2133 213420080126: 2135 The fts(3) structures have been changed to use adequate 2136 integer types for their members and so to be able to cope 2137 with huge file trees. The old fts(3) ABI is preserved 2138 through symbol versioning in libc, so third-party binaries 2139 using fts(3) should still work, although they will not take 2140 advantage of the extended types. At the same time, some 2141 third-party software might fail to build after this change 2142 due to unportable assumptions made in its source code about 2143 fts(3) structure members. Such software should be fixed 2144 by its vendor or, in the worst case, in the ports tree. 2145 FreeBSD_version 800015 marks this change for the unlikely 2146 case that a portable fix is impossible. 2147 214820080123: 2149 To upgrade to -current after this date, you must be running 2150 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2151 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2152 215320071128: 2154 The ADAPTIVE_GIANT kernel option has been retired because its 2155 functionality is the default now. 2156 215720071118: 2158 The AT keyboard emulation of sunkbd(4) has been turned on 2159 by default. In order to make the special symbols of the Sun 2160 keyboards driven by sunkbd(4) work under X these now have 2161 to be configured the same way as Sun USB keyboards driven 2162 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2163 2164 Option "XkbLayout" "us" 2165 Option "XkbRules" "xorg" 2166 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2167 216820071024: 2169 It has been decided that it is desirable to provide ABI 2170 backwards compatibility to the FreeBSD 4/5/6 versions of the 2171 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2172 broken with the introduction of PCI domain support (see the 2173 20070930 entry). Unfortunately, this required the ABI of 2174 PCIOCGETCONF to be broken again in order to be able to 2175 provide backwards compatibility to the old version of that 2176 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2177 again. As for prominent ports this affects neither pciutils 2178 nor xorg-server this time, the hal port needs to be rebuilt 2179 however. 2180 218120071020: 2182 The misnamed kthread_create() and friends have been renamed 2183 to kproc_create() etc. Many of the callers already 2184 used kproc_start().. 2185 I will return kthread_create() and friends in a while 2186 with implementations that actually create threads, not procs. 2187 Renaming corresponds with version 800002. 2188 218920071010: 2190 RELENG_7 branched. 2191 2192COMMON ITEMS: 2193 2194 General Notes 2195 ------------- 2196 Avoid using make -j when upgrading. While generally safe, there are 2197 sometimes problems using -j to upgrade. If your upgrade fails with 2198 -j, please try again without -j. From time to time in the past there 2199 have been problems using -j with buildworld and/or installworld. This 2200 is especially true when upgrading between "distant" versions (eg one 2201 that cross a major release boundary or several minor releases, or when 2202 several months have passed on the -current branch). 2203 2204 Sometimes, obscure build problems are the result of environment 2205 poisoning. This can happen because the make utility reads its 2206 environment when searching for values for global variables. To run 2207 your build attempts in an "environmental clean room", prefix all make 2208 commands with 'env -i '. See the env(1) manual page for more details. 2209 2210 When upgrading from one major version to another it is generally best 2211 to upgrade to the latest code in the currently installed branch first, 2212 then do an upgrade to the new branch. This is the best-tested upgrade 2213 path, and has the highest probability of being successful. Please try 2214 this approach before reporting problems with a major version upgrade. 2215 2216 When upgrading a live system, having a root shell around before 2217 installing anything can help undo problems. Not having a root shell 2218 around can lead to problems if pam has changed too much from your 2219 starting point to allow continued authentication after the upgrade. 2220 2221 ZFS notes 2222 --------- 2223 When upgrading the boot ZFS pool to a new version, always follow 2224 these two steps: 2225 2226 1.) recompile and reinstall the ZFS boot loader and boot block 2227 (this is part of "make buildworld" and "make installworld") 2228 2229 2.) update the ZFS boot block on your boot drive 2230 2231 The following example updates the ZFS boot block on the first 2232 partition (freebsd-boot) of a GPT partitioned drive ad0: 2233 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2234 2235 Non-boot pools do not need these updates. 2236 2237 To build a kernel 2238 ----------------- 2239 If you are updating from a prior version of FreeBSD (even one just 2240 a few days old), you should follow this procedure. It is the most 2241 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2242 2243 make kernel-toolchain 2244 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2245 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2246 2247 To test a kernel once 2248 --------------------- 2249 If you just want to boot a kernel once (because you are not sure 2250 if it works, or if you want to boot a known bad kernel to provide 2251 debugging information) run 2252 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2253 nextboot -k testkernel 2254 2255 To just build a kernel when you know that it won't mess you up 2256 -------------------------------------------------------------- 2257 This assumes you are already running a CURRENT system. Replace 2258 ${arch} with the architecture of your machine (e.g. "i386", 2259 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2260 2261 cd src/sys/${arch}/conf 2262 config KERNEL_NAME_HERE 2263 cd ../compile/KERNEL_NAME_HERE 2264 make depend 2265 make 2266 make install 2267 2268 If this fails, go to the "To build a kernel" section. 2269 2270 To rebuild everything and install it on the current system. 2271 ----------------------------------------------------------- 2272 # Note: sometimes if you are running current you gotta do more than 2273 # is listed here if you are upgrading from a really old current. 2274 2275 <make sure you have good level 0 dumps> 2276 make buildworld 2277 make kernel KERNCONF=YOUR_KERNEL_HERE 2278 [1] 2279 <reboot in single user> [3] 2280 mergemaster -p [5] 2281 make installworld 2282 mergemaster -i [4] 2283 make delete-old [6] 2284 <reboot> 2285 2286 To cross-install current onto a separate partition 2287 -------------------------------------------------- 2288 # In this approach we use a separate partition to hold 2289 # current's root, 'usr', and 'var' directories. A partition 2290 # holding "/", "/usr" and "/var" should be about 2GB in 2291 # size. 2292 2293 <make sure you have good level 0 dumps> 2294 <boot into -stable> 2295 make buildworld 2296 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2297 <maybe newfs current's root partition> 2298 <mount current's root partition on directory ${CURRENT_ROOT}> 2299 make installworld DESTDIR=${CURRENT_ROOT} 2300 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2301 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2302 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2303 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2304 <reboot into current> 2305 <do a "native" rebuild/install as described in the previous section> 2306 <maybe install compatibility libraries from ports/misc/compat*> 2307 <reboot> 2308 2309 2310 To upgrade in-place from stable to current 2311 ---------------------------------------------- 2312 <make sure you have good level 0 dumps> 2313 make buildworld [9] 2314 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2315 [1] 2316 <reboot in single user> [3] 2317 mergemaster -p [5] 2318 make installworld 2319 mergemaster -i [4] 2320 make delete-old [6] 2321 <reboot> 2322 2323 Make sure that you've read the UPDATING file to understand the 2324 tweaks to various things you need. At this point in the life 2325 cycle of current, things change often and you are on your own 2326 to cope. The defaults can also change, so please read ALL of 2327 the UPDATING entries. 2328 2329 Also, if you are tracking -current, you must be subscribed to 2330 freebsd-current@freebsd.org. Make sure that before you update 2331 your sources that you have read and understood all the recent 2332 messages there. If in doubt, please track -stable which has 2333 much fewer pitfalls. 2334 2335 [1] If you have third party modules, such as vmware, you 2336 should disable them at this point so they don't crash your 2337 system on reboot. 2338 2339 [3] From the bootblocks, boot -s, and then do 2340 fsck -p 2341 mount -u / 2342 mount -a 2343 cd src 2344 adjkerntz -i # if CMOS is wall time 2345 Also, when doing a major release upgrade, it is required that 2346 you boot into single user mode to do the installworld. 2347 2348 [4] Note: This step is non-optional. Failure to do this step 2349 can result in a significant reduction in the functionality of the 2350 system. Attempting to do it by hand is not recommended and those 2351 that pursue this avenue should read this file carefully, as well 2352 as the archives of freebsd-current and freebsd-hackers mailing lists 2353 for potential gotchas. The -U option is also useful to consider. 2354 See mergemaster(8) for more information. 2355 2356 [5] Usually this step is a noop. However, from time to time 2357 you may need to do this if you get unknown user in the following 2358 step. It never hurts to do it all the time. You may need to 2359 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2360 install) after the buildworld before this step if you last updated 2361 from current before 20130425 or from -stable before 20130430. 2362 2363 [6] This only deletes old files and directories. Old libraries 2364 can be deleted by "make delete-old-libs", but you have to make 2365 sure that no program is using those libraries anymore. 2366 2367 [8] In order to have a kernel that can run the 4.x binaries needed to 2368 do an installworld, you must include the COMPAT_FREEBSD4 option in 2369 your kernel. Failure to do so may leave you with a system that is 2370 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2371 required to run the 5.x binaries on more recent kernels. And so on 2372 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2373 2374 Make sure that you merge any new devices from GENERIC since the 2375 last time you updated your kernel config file. 2376 2377 [9] When checking out sources, you must include the -P flag to have 2378 cvs prune empty directories. 2379 2380 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2381 "?=" instead of the "=" assignment operator, so that buildworld can 2382 override the CPUTYPE if it needs to. 2383 2384 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2385 not on the command line, or in /etc/make.conf. buildworld will 2386 warn if it is improperly defined. 2387FORMAT: 2388 2389This file contains a list, in reverse chronological order, of major 2390breakages in tracking -current. It is not guaranteed to be a complete 2391list of such breakages, and only contains entries since October 10, 2007. 2392If you need to see UPDATING entries from before that date, you will need 2393to fetch an UPDATING file from an older FreeBSD release. 2394 2395Copyright information: 2396 2397Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2398 2399Redistribution, publication, translation and use, with or without 2400modification, in full or in part, in any form or format of this 2401document are permitted without further permission from the author. 2402 2403THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2404IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2405WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2406DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2407INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2408(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2409SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2410HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2411STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2412IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2413POSSIBILITY OF SUCH DAMAGE. 2414 2415Contact Warner Losh if you have any questions about your use of 2416this document. 2417 2418$FreeBSD: releng/10.2/UPDATING 309694 2016-12-07 23:32:42Z glebius $ 2419