UPDATING revision 268399
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 1920140708: 20 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 21 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 22 which differs from the behaviour controlled by this knob.) 23 2420140608: 25 On i386 and amd64 systems, the onifconsole flag is now set by default 26 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 27 as a login TTY if it is set in the bootloader as an active kernel 28 console. No changes in behavior should result otherwise. To revert to 29 the previous behavior, set ttyu0 to "off" in /etc/ttys. 30 3120140512: 32 Clang and llvm have been upgraded to 3.4.1 release. 33 3420140321: 35 Clang and llvm have been upgraded to 3.4 release. 36 3720140306: 38 If a Makefile in a tests/ directory was auto-generating a Kyuafile 39 instead of providing an explicit one, this would prevent such 40 Makefile from providing its own Kyuafile in the future during 41 NO_CLEAN builds. This has been fixed in the Makefiles but manual 42 intervention is needed to clean an objdir if you use NO_CLEAN: 43 # find /usr/obj -name Kyuafile | xargs rm -f 44 4520140303: 46 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 47 capability mode support. Please note that enabling the feature in 48 kernel is still highly recommended. 49 5020140227: 51 OpenSSH is now built with sandbox support, and will use sandbox as 52 the default privilege separation method. This requires Capsicum 53 capability mode support in kernel. 54 5520140216: 56 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 57 been deprecated and will not be part of FreeBSD 11.0 and later 58 releases. If you use this driver, please consider switching to 59 the nfe(4) driver instead. 60 6120140120: 62 10.0-RELEASE. 63 6420131216: 65 The behavior of gss_pseudo_random() for the krb5 mechanism 66 has changed, for applications requesting a longer random string 67 than produced by the underlying enctype's pseudo-random() function. 68 In particular, the random string produced from a session key of 69 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 70 be different at the 17th octet and later, after this change. 71 The counter used in the PRF+ construction is now encoded as a 72 big-endian integer in accordance with RFC 4402. 73 __FreeBSD_version is bumped to 1000701. 74 7520131108: 76 The WITHOUT_ATF build knob has been removed and its functionality 77 has been subsumed into the more generic WITHOUT_TESTS. If you were 78 using the former to disable the build of the ATF libraries, you 79 should change your settings to use the latter. 80 8120131031: 82 The default version of mtree is nmtree which is obtained from 83 NetBSD. The output is generally the same, but may vary 84 slightly. If you found you need identical output adding 85 "-F freebsd9" to the command line should do the trick. For the 86 time being, the old mtree is available as fmtree. 87 8820131014: 89 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 90 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 91 1.1.4_8 and verify bsdyml not linked in, before running "make 92 delete-old-libs": 93 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 94 or 95 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 96 9720131010: 98 The rc.d/jail script has been updated to support jail(8) 99 configuration file. The "jail_<jname>_*" rc.conf(5) variables 100 for per-jail configuration are automatically converted to 101 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 102 This is transparently backward compatible. See below about some 103 incompatibilities and rc.conf(5) manual page for more details. 104 105 These variables are now deprecated in favor of jail(8) configuration 106 file. One can use "rc.d/jail config <jname>" command to generate 107 a jail(8) configuration file in /var/run/jail.<jname>.conf without 108 running the jail(8) utility. The default pathname of the 109 configuration file is /etc/jail.conf and can be specified by 110 using $jail_conf or $jail_<jname>_conf variables. 111 112 Please note that jail_devfs_ruleset accepts an integer at 113 this moment. Please consider to rewrite the ruleset name 114 with an integer. 115 11620130930: 117 BIND has been removed from the base system. If all you need 118 is a local resolver, simply enable and start the local_unbound 119 service instead. Otherwise, several versions of BIND are 120 available in the ports tree. The dns/bind99 port is one example. 121 122 With this change, nslookup(1) and dig(1) are no longer in the base 123 system. Users should instead use host(1) and drill(1) which are 124 in the base system. Alternatively, nslookup and dig can 125 be obtained by installing the dns/bind-tools port. 126 12720130916: 128 With the addition of unbound(8), a new unbound user is now 129 required during installworld. "mergemaster -p" can be used to 130 add the user prior to installworld, as documented in the handbook. 131 13220130911: 133 OpenSSH is now built with DNSSEC support, and will by default 134 silently trust signed SSHFP records. This can be controlled with 135 the VerifyHostKeyDNS client configuration setting. DNSSEC support 136 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 137 13820130906: 139 The GNU Compiler Collection and C++ standard library (libstdc++) 140 are no longer built by default on platforms where clang is the system 141 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 142 options in src.conf. 143 14420130905: 145 The PROCDESC kernel option is now part of the GENERIC kernel 146 configuration and is required for the rwhod(8) to work. 147 If you are using custom kernel configuration, you should include 148 'options PROCDESC'. 149 15020130905: 151 The API and ABI related to the Capsicum framework was modified 152 in backward incompatible way. The userland libraries and programs 153 have to be recompiled to work with the new kernel. This includes the 154 following libraries and programs, but the whole buildworld is 155 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 156 kdump, procstat, rwho, rwhod, uniq. 157 15820130903: 159 AES-NI intrinsic support has been added to gcc. The AES-NI module 160 has been updated to use this support. A new gcc is required to build 161 the aesni module on both i386 and amd64. 162 16320130821: 164 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 165 Thus "device padlock_rng" and "device rdrand_rng" should be 166 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 167 16820130813: 169 WITH_ICONV has been split into two feature sets. WITH_ICONV now 170 enables just the iconv* functionality and is now on by default. 171 WITH_LIBICONV_COMPAT enables the libiconv api and link time 172 compatability. Set WITHOUT_ICONV to build the old way. 173 If you have been using WITH_ICONV before, you will very likely 174 need to turn on WITH_LIBICONV_COMPAT. 175 17620130806: 177 INVARIANTS option now enables DEBUG for code with OpenSolaris and 178 Illumos origin, including ZFS. If you have INVARIANTS in your 179 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 180 explicitly. 181 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 182 locks if WITNESS option was set. Because that generated a lot of 183 witness(9) reports and all of them were believed to be false 184 positives, this is no longer done. New option OPENSOLARIS_WITNESS 185 can be used to achieve the previous behavior. 186 18720130806: 188 Timer values in IPv6 data structures now use time_uptime instead 189 of time_second. Although this is not a user-visible functional 190 change, userland utilities which directly use them---ndp(8), 191 rtadvd(8), and rtsold(8) in the base system---need to be updated 192 to r253970 or later. 193 19420130802: 195 find -delete can now delete the pathnames given as arguments, 196 instead of only files found below them or if the pathname did 197 not contain any slashes. Formerly, the following error message 198 would result: 199 200 find: -delete: <path>: relative path potentially not safe 201 202 Deleting the pathnames given as arguments can be prevented 203 without error messages using -mindepth 1 or by changing 204 directory and passing "." as argument to find. This works in the 205 old as well as the new version of find. 206 20720130726: 208 Behavior of devfs rules path matching has been changed. 209 Pattern is now always matched against fully qualified devfs 210 path and slash characters must be explicitly matched by 211 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 212 subdirectories must be reviewed. 213 21420130716: 215 The default ARM ABI has changed to the ARM EABI. The old ABI is 216 incompatible with the ARM EABI and all programs and modules will 217 need to be rebuilt to work with a new kernel. 218 219 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 220 221 NOTE: Support for the old ABI will be removed in the future and 222 users are advised to upgrade. 223 22420130709: 225 pkg_install has been disconnected from the build if you really need it 226 you should add WITH_PKGTOOLS in your src.conf(5). 227 22820130709: 229 Most of network statistics structures were changed to be able 230 keep 64-bits counters. Thus all tools, that work with networking 231 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 232 23320130629: 234 Fix targets that run multiple make's to use && rather than ; 235 so that subsequent steps depend on success of previous. 236 237 NOTE: if building 'universe' with -j* on stable/8 or stable/9 238 it would be better to start the build using bmake, to avoid 239 overloading the machine. 240 24120130618: 242 Fix a bug that allowed a tracing process (e.g. gdb) to write 243 to a memory-mapped file in the traced process's address space 244 even if neither the traced process nor the tracing process had 245 write access to that file. 246 24720130615: 248 CVS has been removed from the base system. An exact copy 249 of the code is available from the devel/cvs port. 250 25120130613: 252 Some people report the following error after the switch to bmake: 253 254 make: illegal option -- J 255 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 256 ... 257 *** [buildworld] Error code 2 258 259 this likely due to an old instance of make in 260 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 261 which src/Makefile will use that blindly, if it exists, so if 262 you see the above error: 263 264 rm -rf `make -V MAKEPATH` 265 266 should resolve it. 267 26820130516: 269 Use bmake by default. 270 Whereas before one could choose to build with bmake via 271 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 272 make. The goal is to remove these knobs for 10-RELEASE. 273 274 It is worth noting that bmake (like gmake) treats the command 275 line as the unit of failure, rather than statements within the 276 command line. Thus '(cd some/where && dosomething)' is safer 277 than 'cd some/where; dosomething'. The '()' allows consistent 278 behavior in parallel build. 279 28020130429: 281 Fix a bug that allows NFS clients to issue READDIR on files. 282 28320130426: 284 The WITHOUT_IDEA option has been removed because 285 the IDEA patent expired. 286 28720130426: 288 The sysctl which controls TRIM support under ZFS has been renamed 289 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 290 enabled by default. 291 29220130425: 293 The mergemaster command now uses the default MAKEOBJDIRPREFIX 294 rather than creating it's own in the temporary directory in 295 order allow access to bootstrapped versions of tools such as 296 install and mtree. When upgrading from version of FreeBSD where 297 the install command does not support -l, you will need to 298 install a new mergemaster command if mergemaster -p is required. 299 This can be accomplished with the command (cd src/usr.sbin/mergemaster 300 && make install). 301 30220130404: 303 Legacy ATA stack, disabled and replaced by new CAM-based one since 304 FreeBSD 9.0, completely removed from the sources. Kernel modules 305 atadisk and atapi*, user-level tools atacontrol and burncd are 306 removed. Kernel option `options ATA_CAM` is now permanently enabled 307 and removed. 308 30920130319: 310 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 311 and socketpair(2). Software, in particular Kerberos, may 312 automatically detect and use these during building. The resulting 313 binaries will not work on older kernels. 314 31520130308: 316 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 317 information, see the respective 20130304 entry). 318 31920130304: 320 Recent commits to callout(9) changed the size of struct callout, 321 so the KBI is probably heavily disturbed. Also, some functions 322 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 323 by macros. Every kernel module using it won't load, so rebuild 324 is requested. 325 326 The ctl device has been re-enabled in GENERIC for i386 and amd64, 327 but does not initialize by default (because of the new CTL_DISABLE 328 option) to save memory. To re-enable it, remove the CTL_DISABLE 329 option from the kernel config file or set kern.cam.ctl.disable=0 330 in /boot/loader.conf. 331 33220130301: 333 The ctl device has been disabled in GENERIC for i386 and amd64. 334 This was done due to the extra memory being allocated at system 335 initialisation time by the ctl driver which was only used if 336 a CAM target device was created. This makes a FreeBSD system 337 unusable on 128MB or less of RAM. 338 33920130208: 340 A new compression method (lz4) has been merged to -HEAD. Please 341 refer to zpool-features(7) for more information. 342 343 Please refer to the "ZFS notes" section of this file for information 344 on upgrading boot ZFS pools. 345 34620130129: 347 A BSD-licensed patch(1) variant has been added and is installed 348 as bsdpatch, being the GNU version the default patch. 349 To inverse the logic and use the BSD-licensed one as default, 350 while having the GNU version installed as gnupatch, rebuild 351 and install world with the WITH_BSD_PATCH knob set. 352 35320130121: 354 Due to the use of the new -l option to install(1) during build 355 and install, you must take care not to directly set the INSTALL 356 make variable in your /etc/make.conf, /etc/src.conf, or on the 357 command line. If you wish to use the -C flag for all installs 358 you may be able to add INSTALL+=-C to /etc/make.conf or 359 /etc/src.conf. 360 36120130118: 362 The install(1) option -M has changed meaning and now takes an 363 argument that is a file or path to append logs to. In the 364 unlikely event that -M was the last option on the command line 365 and the command line contained at least two files and a target 366 directory the first file will have logs appended to it. The -M 367 option served little practical purpose in the last decade so its 368 use is expected to be extremely rare. 369 37020121223: 371 After switching to Clang as the default compiler some users of ZFS 372 on i386 systems started to experience stack overflow kernel panics. 373 Please consider using 'options KSTACK_PAGES=4' in such configurations. 374 37520121222: 376 GEOM_LABEL now mangles label names read from file system metadata. 377 Mangling affect labels containing spaces, non-printable characters, 378 '%' or '"'. Device names in /etc/fstab and other places may need to 379 be updated. 380 38120121217: 382 By default, only the 10 most recent kernel dumps will be saved. To 383 restore the previous behaviour (no limit on the number of kernel dumps 384 stored in the dump directory) add the following line to /etc/rc.conf: 385 386 savecore_flags="" 387 38820121201: 389 With the addition of auditdistd(8), a new auditdistd user is now 390 required during installworld. "mergemaster -p" can be used to 391 add the user prior to installworld, as documented in the handbook. 392 39320121117: 394 The sin6_scope_id member variable in struct sockaddr_in6 is now 395 filled by the kernel before passing the structure to the userland via 396 sysctl or routing socket. This means the KAME-specific embedded scope 397 id in sin6_addr.s6_addr[2] is always cleared in userland application. 398 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 399 __FreeBSD_version is bumped to 1000025. 400 40120121105: 402 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 403 This means that the world and kernel will be compiled with clang 404 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 405 and /usr/bin/cpp. To disable this behavior and revert to building 406 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 407 of current may need to bootstrap WITHOUT_CLANG first if the clang 408 build fails (its compatibility window doesn't extend to the 9 stable 409 branch point). 410 41120121102: 412 The IPFIREWALL_FORWARD kernel option has been removed. Its 413 functionality now turned on by default. 414 41520121023: 416 The ZERO_COPY_SOCKET kernel option has been removed and 417 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 418 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 419 mechanism which is not safe and may result in kernel crashes. 420 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 421 driver supports disposeable external page sized mbuf storage. 422 Proper replacements for both zero-copy mechanisms are under 423 consideration and will eventually lead to complete removal 424 of the two kernel options. 425 42620121023: 427 The IPv4 network stack has been converted to network byte 428 order. The following modules need to be recompiled together 429 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 430 pf(4), ipfw(4), ng_ipfw(4), stf(4). 431 43220121022: 433 Support for non-MPSAFE filesystems was removed from VFS. The 434 VFS_VERSION was bumped, all filesystem modules shall be 435 recompiled. 436 43720121018: 438 All the non-MPSAFE filesystems have been disconnected from 439 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 440 portalfs, smbfs, xfs. 441 44220121016: 443 The interface cloning API and ABI has changed. The following 444 modules need to be recompiled together with kernel: 445 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 446 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 447 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 448 44920121015: 450 The sdhci driver was split in two parts: sdhci (generic SD Host 451 Controller logic) and sdhci_pci (actual hardware driver). 452 No kernel config modifications are required, but if you 453 load sdhc as a module you must switch to sdhci_pci instead. 454 45520121014: 456 Import the FUSE kernel and userland support into base system. 457 45820121013: 459 The GNU sort(1) program has been removed since the BSD-licensed 460 sort(1) has been the default for quite some time and no serious 461 problems have been reported. The corresponding WITH_GNU_SORT 462 knob has also gone. 463 46420121006: 465 The pfil(9) API/ABI for AF_INET family has been changed. Packet 466 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 467 with new kernel. 468 46920121001: 470 The net80211(4) ABI has been changed to allow for improved driver 471 PS-POLL and power-save support. All wireless drivers need to be 472 recompiled to work with the new kernel. 473 47420120913: 475 The random(4) support for the VIA hardware random number 476 generator (`PADLOCK') is no longer enabled unconditionally. 477 Add the padlock_rng device in the custom kernel config if 478 needed. The GENERIC kernels on i386 and amd64 do include the 479 device, so the change only affects the custom kernel 480 configurations. 481 48220120908: 483 The pf(4) packet filter ABI has been changed. pfctl(8) and 484 snmp_pf module need to be recompiled to work with new kernel. 485 48620120828: 487 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 488 to -HEAD. Pools that have empty_bpobj in active state can not be 489 imported read-write with ZFS implementations that do not support 490 this feature. For more information read the zpool-features(5) 491 manual page. 492 49320120727: 494 The sparc64 ZFS loader has been changed to no longer try to auto- 495 detect ZFS providers based on diskN aliases but now requires these 496 to be explicitly listed in the OFW boot-device environment variable. 497 49820120712: 499 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 500 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 501 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 502 50320120712: 504 The following sysctls and tunables have been renamed for consistency 505 with other variables: 506 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 507 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 508 50920120628: 510 The sort utility has been replaced with BSD sort. For now, GNU sort 511 is also available as "gnusort" or the default can be set back to 512 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 513 installed as "bsdsort". 514 51520120611: 516 A new version of ZFS (pool version 5000) has been merged to -HEAD. 517 Starting with this version the old system of ZFS pool versioning 518 is superseded by "feature flags". This concept enables forward 519 compatibility against certain future changes in functionality of ZFS 520 pools. The first read-only compatible "feature flag" for ZFS pools 521 is named "com.delphix:async_destroy". For more information 522 read the new zpool-features(5) manual page. 523 Please refer to the "ZFS notes" section of this file for information 524 on upgrading boot ZFS pools. 525 52620120417: 527 The malloc(3) implementation embedded in libc now uses sources imported 528 as contrib/jemalloc. The most disruptive API change is to 529 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 530 delete it prior to installworld, and optionally re-create it using the 531 new format after rebooting. See malloc.conf(5) for details 532 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 533 NAMESPACE section). 534 53520120328: 536 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 537 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 538 now spelled mips. This is to aid compatibility with third-party 539 software that expects this naming scheme in uname(3). Little-endian 540 settings are unchanged. If you are updating a big-endian mips64 machine 541 from before this change, you may need to set MACHINE_ARCH=mips64 in 542 your environment before the new build system will recognize your machine. 543 54420120306: 545 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 546 platforms. 547 54820120229: 549 Now unix domain sockets behave "as expected" on nullfs(5). Previously 550 nullfs(5) did not pass through all behaviours to the underlying layer, 551 as a result if we bound to a socket on the lower layer we could connect 552 only to the lower path; if we bound to the upper layer we could connect 553 only to the upper path. The new behavior is one can connect to both the 554 lower and the upper paths regardless what layer path one binds to. 555 55620120211: 557 The getifaddrs upgrade path broken with 20111215 has been restored. 558 If you have upgraded in between 20111215 and 20120209 you need to 559 recompile libc again with your kernel. You still need to recompile 560 world to be able to configure CARP but this restriction already 561 comes from 20111215. 562 56320120114: 564 The set_rcvar() function has been removed from /etc/rc.subr. All 565 base and ports rc.d scripts have been updated, so if you have a 566 port installed with a script in /usr/local/etc/rc.d you can either 567 hand-edit the rcvar= line, or reinstall the port. 568 569 An easy way to handle the mass-update of /etc/rc.d: 570 rm /etc/rc.d/* && mergemaster -i 571 57220120109: 573 panic(9) now stops other CPUs in the SMP systems, disables interrupts 574 on the current CPU and prevents other threads from running. 575 This behavior can be reverted using the kern.stop_scheduler_on_panic 576 tunable/sysctl. 577 The new behavior can be incompatible with kern.sync_on_panic. 578 57920111215: 580 The carp(4) facility has been changed significantly. Configuration 581 of the CARP protocol via ifconfig(8) has changed, as well as format 582 of CARP events submitted to devd(8) has changed. See manual pages 583 for more information. The arpbalance feature of carp(4) is currently 584 not supported anymore. 585 586 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 587 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 588 need to be recompiled. 589 59020111122: 591 The acpi_wmi(4) status device /dev/wmistat has been renamed to 592 /dev/wmistat0. 593 59420111108: 595 The option VFS_ALLOW_NONMPSAFE option has been added in order to 596 explicitely support non-MPSAFE filesystems. 597 It is on by default for all supported platform at this present 598 time. 599 60020111101: 601 The broken amd(4) driver has been replaced with esp(4) in the amd64, 602 i386 and pc98 GENERIC kernel configuration files. 603 60420110930: 605 sysinstall has been removed 606 60720110923: 608 The stable/9 branch created in subversion. This corresponds to the 609 RELENG_9 branch in CVS. 610 61120110913: 612 This commit modifies vfs_register() so that it uses a hash 613 calculation to set vfc_typenum, which is enabled by default. 614 The first time a system is booted after this change, the 615 vfc_typenum values will change for all file systems. The 616 main effect of this is a change to the NFS server file handles 617 for file systems that use vfc_typenum in their fsid, such as ZFS. 618 It will, however, prevent vfc_typenum from changing when file 619 systems are loaded in a different order for subsequent reboots. 620 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 621 until you are ready to remount all NFS clients after a reboot. 622 62320110828: 624 Bump the shared library version numbers for libraries that 625 do not use symbol versioning, have changed the ABI compared 626 to stable/8 and which shared library version was not bumped. 627 Done as part of 9.0-RELEASE cycle. 628 62920110815: 630 During the merge of Capsicum features, the fget(9) KPI was modified. 631 This may require the rebuilding of out-of-tree device drivers -- 632 issues have been reported specifically with the nVidia device driver. 633 __FreeBSD_version is bumped to 900041. 634 635 Also, there is a period between 20110811 and 20110814 where the 636 special devices /dev/{stdin,stdout,stderr} did not work correctly. 637 Building world from a kernel during that window may not work. 638 63920110628: 640 The packet filter (pf) code has been updated to OpenBSD 4.5. 641 You need to update userland tools to be in sync with kernel. 642 This update breaks backward compatibility with earlier pfsync(4) 643 versions. Care must be taken when updating redundant firewall setups. 644 64520110608: 646 The following sysctls and tunables are retired on x86 platforms: 647 machdep.hlt_cpus 648 machdep.hlt_logical_cpus 649 The following sysctl is retired: 650 machdep.hyperthreading_allowed 651 The sysctls were supposed to provide a way to dynamically offline and 652 online selected CPUs on x86 platforms, but the implementation has not 653 been reliable especially with SCHED_ULE scheduler. 654 machdep.hyperthreading_allowed tunable is still available to ignore 655 hyperthreading CPUs at OS level. 656 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 657 where X is an APIC ID of a CPU. Be advised, though, that disabling 658 CPUs in non-uniform fashion will result in non-uniform topology and 659 may lead to sub-optimal system performance with SCHED_ULE, which is 660 a default scheduler. 661 66220110607: 663 cpumask_t type is retired and cpuset_t is used in order to describe 664 a mask of CPUs. 665 66620110531: 667 Changes to ifconfig(8) for dynamic address family detection mandate 668 that you are running a kernel of 20110525 or later. Make sure to 669 follow the update procedure to boot a new kernel before installing 670 world. 671 67220110513: 673 Support for sun4v architecture is officially dropped 674 67520110503: 676 Several KPI breaking changes have been committed to the mii(4) layer, 677 the PHY drivers and consequently some Ethernet drivers using mii(4). 678 This means that miibus.ko and the modules of the affected Ethernet 679 drivers need to be recompiled. 680 681 Note to kernel developers: Given that the OUI bit reversion problem 682 was fixed as part of these changes all mii(4) commits related to OUIs, 683 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 684 handling, no longer can be merged verbatim to stable/8 and previous 685 branches. 686 68720110430: 688 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 689 into their kernel configurations along with 'device pci'. 690 69120110427: 692 The default NFS client is now the new NFS client, so fstype "newnfs" 693 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 694 Although mounts via fstype "nfs" will usually work without userland 695 changes, it is recommended that the mount(8) and mount_nfs(8) 696 commands be rebuilt from sources and that a link to mount_nfs called 697 mount_oldnfs be created. The new client is compiled into the 698 kernel with "options NFSCL" and this is needed for diskless root 699 file systems. The GENERIC kernel configs have been changed to use 700 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 701 To use the regular/old client, you can "mount -t oldnfs ...". For 702 a diskless root file system, you must also include a line like: 703 704 vfs.root.mountfrom="oldnfs:" 705 706 in the boot/loader.conf on the root fs on the NFS server to make 707 a diskless root fs use the old client. 708 70920110424: 710 The GENERIC kernels for all architectures now default to the new 711 CAM-based ATA stack. It means that all legacy ATA drivers were 712 removed and replaced by respective CAM drivers. If you are using 713 ATA device names in /etc/fstab or other places, make sure to update 714 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 715 where 'Y's are the sequential numbers starting from zero for each type 716 in order of detection, unless configured otherwise with tunables, 717 see cam(4)). There will be symbolic links created in /dev/ to map 718 old adX devices to the respective adaY. They should provide basic 719 compatibility for file systems mounting in most cases, but they do 720 not support old user-level APIs and do not have respective providers 721 in GEOM. Consider using updated management tools with new device names. 722 723 It is possible to load devices ahci, ata, siis and mvs as modules, 724 but option ATA_CAM should remain in kernel configuration to make ata 725 module work as CAM driver supporting legacy ATA controllers. Device ata 726 still can be used in modular fashion (atacore + ...). Modules atadisk 727 and atapi* are not used and won't affect operation in ATA_CAM mode. 728 Note that to use CAM-based ATA kernel should include CAM devices 729 scbus, pass, da (or explicitly ada), cd and optionally others. All of 730 them are parts of the cam module. 731 732 ataraid(4) functionality is now supported by the RAID GEOM class. 733 To use it you can load geom_raid kernel module and use graid(8) tool 734 for management. Instead of /dev/arX device names, use /dev/raid/rX. 735 736 No kernel config options or code have been removed, so if a problem 737 arises, please report it and optionally revert to the old ATA stack. 738 In order to do it you can remove from the kernel config: 739 options ATA_CAM 740 device ahci 741 device mvs 742 device siis 743 , and instead add back: 744 device atadisk # ATA disk drives 745 device ataraid # ATA RAID drives 746 device atapicd # ATAPI CDROM drives 747 device atapifd # ATAPI floppy drives 748 device atapist # ATAPI tape drives 749 75020110423: 751 The default NFS server has been changed to the new server, which 752 was referred to as the experimental server. If you need to switch 753 back to the old NFS server, you must now put the "-o" option on 754 both the mountd and nfsd commands. This can be done using the 755 mountd_flags and nfs_server_flags rc.conf variables until an 756 update to the rc scripts is committed, which is coming soon. 757 75820110418: 759 The GNU Objective-C runtime library (libobjc), and other Objective-C 760 related components have been removed from the base system. If you 761 require an Objective-C library, please use one of the available ports. 762 76320110331: 764 ath(4) has been split into bus- and device- modules. if_ath contains 765 the HAL, the TX rate control and the network device code. if_ath_pci 766 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 767 contains the AHB glue. Users need to load both if_ath_pci and if_ath 768 in order to use ath on everything else. 769 770 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 771 need to load if_ath and if_ath_pci for ath(4) operation. 772 77320110314: 774 As part of the replacement of sysinstall, the process of building 775 release media has changed significantly. For details, please re-read 776 release(7), which has been updated to reflect the new build process. 777 77820110218: 779 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 780 is the last available version under GPLv2. It brings a number of new 781 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 782 4.1 and SSE 4.2), better support for powerpc64, a number of new 783 directives, and lots of other small improvements. See the ChangeLog 784 file in contrib/binutils for the full details. 785 78620110218: 787 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 788 compliant, and will now use half of hash for authentication. 789 This will break interoperability with all stacks (including all 790 actual FreeBSD versions) who implement 791 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 792 authentication). 793 The only workaround with such peers is to use another HMAC 794 algorithm for IPsec ("phase 2") authentication. 795 79620110207: 797 Remove the uio_yield prototype and symbol. This function has 798 been misnamed since it was introduced and should not be 799 globally exposed with this name. The equivalent functionality 800 is now available using kern_yield(curthread->td_user_pri). 801 The function remains undocumented. 802 80320110112: 804 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 805 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 806 for scalar sysctls is defined but disabled. Code that needs 807 UQUAD to pass the type checking that must compile on older 808 systems where the define is not present can check against 809 __FreeBSD_version >= 900030. 810 811 The system dialog(1) has been replaced with a new version previously 812 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 813 with the previous version, but the libdialog associated with it has 814 a largely incompatible API. As such, the original version of libdialog 815 will be kept temporarily as libodialog, until its base system consumers 816 are replaced or updated. Bump __FreeBSD_version to 900030. 817 81820110103: 819 If you are trying to run make universe on a -stable system, and you get 820 the following warning: 821 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 822 unknown. config(8) likely too old." 823 or something similar to it, then you must upgrade your -stable system 824 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 825 stable/8) or build the config from the latest stable/8 branch and 826 install it on your system. 827 828 Prior to this date, building a current universe on 8-stable system from 829 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 830 error in the first kernel build phase. A new config on those old 831 systems will fix that problem for older versions of -current. 832 83320101228: 834 The TCP stack has been modified to allow Khelp modules to interact with 835 it via helper hook points and store per-connection data in the TCP 836 control block. Bump __FreeBSD_version to 900029. User space tools that 837 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 838 be recompiled. 839 84020101114: 841 Generic IEEE 802.3 annex 31B full duplex flow control support has been 842 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 843 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 844 to take advantage of it instead of using custom implementations. This 845 means that these drivers now no longer unconditionally advertise 846 support for flow control but only do so if flow control is a selected 847 media option. This was implemented in the generic support that way in 848 order to allow flow control to be switched on and off via ifconfig(8) 849 with the PHY specific default to typically off in order to protect 850 from unwanted effects. Consequently, if you used flow control with 851 one of the above mentioned drivers you now need to explicitly enable 852 it, for example via: 853 ifconfig bge0 media auto mediaopt flowcontrol 854 855 Along with the above mentioned changes generic support for setting 856 1000baseT master mode also has been added and brgphy(4), ciphy(4), 857 e1000phy(4) as well as ip1000phy(4) have been converted to take 858 advantage of it. This means that these drivers now no longer take the 859 link0 parameter for selecting master mode but the master media option 860 has to be used instead, for example like in the following: 861 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 862 863 Selection of master mode now is also available with all other PHY 864 drivers supporting 1000baseT. 865 86620101111: 867 The TCP stack has received a significant update to add support for 868 modularised congestion control and generally improve the clarity of 869 congestion control decisions. Bump __FreeBSD_version to 900025. User 870 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 871 sockstat) need to be recompiled. 872 87320101002: 874 The man(1) utility has been replaced by a new version that no longer 875 uses /etc/manpath.config. Please consult man.conf(5) for how to 876 migrate local entries to the new format. 877 87820100928: 879 The copyright strings printed by login(1) and sshd(8) at the time of a 880 new connection have been removed to follow other operating systems and 881 upstream sshd. 882 88320100915: 884 A workaround for a fixed ld bug has been removed in kernel code, 885 so make sure that your system ld is built from sources after 886 revision 210245 from 2010-07-19 (r211583 if building head kernel 887 on stable/8, r211584 for stable/7; both from 2010-08-21). 888 A symptom of incorrect ld version is different addresses for 889 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 890 89120100913: 892 The $ipv6_prefer variable in rc.conf(5) has been split into 893 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 894 895 The $ip6addrctl_policy is a variable to choose a pre-defined 896 address selection policy set by ip6addrctl(8). A value 897 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 898 default is "AUTO". 899 900 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 901 flag (see an entry of 20090926) is set on an interface with no 902 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 903 security reason. If you want IPv6 link-local address on all 904 interfaces by default, set this to "YES". 905 906 The old ipv6_prefer="YES" is equivalent to 907 ipv6_activate_all_interfaces="YES" and 908 ip6addrctl_policy="ipv6_prefer". 909 91020100913: 911 DTrace has grown support for userland tracing. Due to this, DTrace is 912 now i386 and amd64 only. 913 dtruss(1) is now installed by default on those systems and a new 914 kernel module is needed for userland tracing: fasttrap. 915 No changes to your kernel config file are necessary to enable 916 userland tracing, but you might consider adding 'STRIP=' and 917 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 918 to have informative userland stack traces in DTrace (ustack). 919 92020100725: 921 The acpi_aiboost(4) driver has been removed in favor of the new 922 aibs(4) driver. You should update your kernel configuration file. 923 92420100722: 925 BSD grep has been imported to the base system and it is built by 926 default. It is completely BSD licensed, highly GNU-compatible, uses 927 less memory than its GNU counterpart and has a small codebase. 928 However, it is slower than its GNU counterpart, which is mostly 929 noticeable for larger searches, for smaller ones it is measurable 930 but not significant. The reason is complex, the most important factor 931 is that we lack a modern and efficient regex library and GNU 932 overcomes this by optimizing the searches internally. Future work 933 on improving the regex performance is planned, for the meantime, 934 users that need better performance, can build GNU grep instead by 935 setting the WITH_GNU_GREP knob. 936 93720100713: 938 Due to the import of powerpc64 support, all existing powerpc kernel 939 configuration files must be updated with a machine directive like this: 940 machine powerpc powerpc 941 942 In addition, an updated config(8) is required to build powerpc kernels 943 after this change. 944 94520100713: 946 A new version of ZFS (version 15) has been merged to -HEAD. 947 This version uses a python library for the following subcommands: 948 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 949 For full functionality of these commands the following port must 950 be installed: sysutils/py-zfs 951 95220100429: 953 'vm_page's are now hashed by physical address to an array of mutexes. 954 Currently this is only used to serialize access to hold_count. Over 955 time the page queue mutex will be peeled away. This changes the size 956 of pmap on every architecture. And requires all callers of vm_page_hold 957 and vm_page_unhold to be updated. 958 95920100402: 960 WITH_CTF can now be specified in src.conf (not recommended, there 961 are some problems with static executables), make.conf (would also 962 affect ports which do not use GNU make and do not override the 963 compile targets) or in the kernel config (via "makeoptions 964 WITH_CTF=yes"). 965 When WITH_CTF was specified there before this was silently ignored, 966 so make sure that WITH_CTF is not used in places which could lead 967 to unwanted behavior. 968 96920100311: 970 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 971 to allow 32-bit compatibility on non-x86 platforms. All kernel 972 configurations on amd64 and ia64 platforms using these options must 973 be modified accordingly. 974 97520100113: 976 The utmp user accounting database has been replaced with utmpx, 977 the user accounting interface standardized by POSIX. 978 Unfortunately the semantics of utmp and utmpx don't match, 979 making it practically impossible to support both interfaces. 980 The user accounting database is used by tools like finger(1), 981 last(1), talk(1), w(1) and ac(8). 982 983 All applications in the base system use utmpx. This means only 984 local binaries (e.g. from the ports tree) may still use these 985 utmp database files. These applications must be rebuilt to make 986 use of utmpx. 987 988 After the system has been upgraded, it is safe to remove the old 989 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 990 assuming their contents is of no importance anymore. Old wtmp 991 databases can only be used by last(1) and ac(8) after they have 992 been converted to the new format using wtmpcvt(1). 993 99420100108: 995 Introduce the kernel thread "deadlock resolver" (which can be enabled 996 via the DEADLKRES option, see NOTES for more details) and the 997 sleepq_type() function for sleepqueues. 998 99920091202: 1000 The rc.firewall and rc.firewall6 were unified, and 1001 rc.firewall6 and rc.d/ip6fw were removed. 1002 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1003 variables are obsoleted. Instead, the following new rc 1004 variables are added to rc.d/ipfw: 1005 1006 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1007 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1008 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1009 1010 The meanings correspond to the relevant IPv4 variables. 1011 101220091125: 1013 8.0-RELEASE. 1014 101520091113: 1016 The default terminal emulation for syscons(4) has been changed 1017 from cons25 to xterm on all platforms except pc98. This means 1018 that the /etc/ttys file needs to be updated to ensure correct 1019 operation of applications on the console. 1020 1021 The terminal emulation style can be toggled per window by using 1022 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1023 options can be used to change the compile-time default back to 1024 cons25. 1025 1026 To prevent graphical artifacts, make sure the TERM environment 1027 variable is set to match the terminal emulation that is being 1028 performed by syscons(4). 1029 103020091109: 1031 The layout of the structure ieee80211req_scan_result has changed. 1032 Applications that require wireless scan results (e.g. ifconfig(8)) 1033 from net80211 need to be recompiled. 1034 1035 Applications such as wpa_supplicant(8) may require a full world 1036 build without using NO_CLEAN in order to get synchronized with the 1037 new structure. 1038 103920091025: 1040 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1041 There's one kernel module for each firmware. Adding "device iwnfw" 1042 to the kernel configuration file means including all three firmware 1043 images inside the kernel. If you want to include just the one for 1044 your wireless card, use the devices iwn4965fw, iwn5000fw or 1045 iwn5150fw. 1046 104720090926: 1048 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1049 into rc.d/netif. The changes are the following: 1050 1051 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1052 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1053 Note that both variables need the "inet6" keyword at the head. 1054 1055 Do not set $ipv6_network_interfaces manually if you do not 1056 understand what you are doing. It is not needed in most cases. 1057 1058 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1059 they are obsolete. 1060 1061 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1062 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1063 1064 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1065 all configured interfaces have "inet6 accept_rtadv" in the 1066 $ifconfig_IF_ipv6. These are for backward compatibility. 1067 1068 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1069 functionality of interfaces with no corresponding 1070 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1071 and the default address selection policy of ip6addrctl(8) 1072 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1073 Note that if you want to configure IPv6 functionality on the 1074 disabled interfaces after boot, first you need to clear the flag by 1075 using ifconfig(8) like: 1076 1077 ifconfig em0 inet6 -ifdisabled 1078 1079 If YES, the default address selection policy is set as 1080 IPv6-preferred. 1081 1082 The default value of $ipv6_prefer is NO. 1083 1084 4. If your system need to receive Router Advertisement messages, 1085 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1086 scripts automatically invoke rtsol(8) when the interface becomes 1087 UP. The Router Advertisement messages are used for SLAAC 1088 (State-Less Address AutoConfiguration). 1089 109020090922: 1091 802.11s D3.03 support was committed. This is incompatible with the 1092 previous code, which was based on D3.0. 1093 109420090912: 1095 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1096 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1097 control whether accepting Router Advertisement messages or not. 1098 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1099 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1100 The ifconfig(8) utility now supports these flags. 1101 110220090910: 1103 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1104 mount(8) and -a option for df(1) to see them. 1105 110620090825: 1107 The old tunable hw.bus.devctl_disable has been superseded by 1108 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1109 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1110 is 1000. 1111 111220090813: 1113 Remove the option STOP_NMI. The default action is now to use NMI only 1114 for KDB via the newly introduced function stop_cpus_hard() and 1115 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1116 111720090803: 1118 The stable/8 branch created in subversion. This corresponds to the 1119 RELENG_8 branch in CVS. 1120 112120090719: 1122 Bump the shared library version numbers for all libraries that do not 1123 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1124 __FreeBSD_version to 800105. 1125 112620090714: 1127 Due to changes in the implementation of virtual network stack support, 1128 all network-related kernel modules must be recompiled. As this change 1129 breaks the ABI, bump __FreeBSD_version to 800104. 1130 113120090713: 1132 The TOE interface to the TCP syncache has been modified to remove 1133 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1134 The cxgb driver is the only TOE consumer affected by this change, and 1135 needs to be recompiled along with the kernel. As this change breaks 1136 the ABI, bump __FreeBSD_version to 800103. 1137 113820090712: 1139 Padding has been added to struct tcpcb, sackhint and tcpstat in 1140 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1141 maintaining the ABI. However, this change breaks the ABI, so bump 1142 __FreeBSD_version to 800102. User space tools that rely on the size of 1143 any of these structs (e.g. sockstat) need to be recompiled. 1144 114520090630: 1146 The NFS_LEGACYRPC option has been removed along with the old kernel 1147 RPC implementation that this option selected. Kernel configurations 1148 may need to be adjusted. 1149 115020090629: 1151 The network interface device nodes at /dev/net/<interface> have been 1152 removed. All ioctl operations can be performed the normal way using 1153 routing sockets. The kqueue functionality can generally be replaced 1154 with routing sockets. 1155 115620090628: 1157 The documentation from the FreeBSD Documentation Project (Handbook, 1158 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1159 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1160 116120090624: 1162 The ABI of various structures related to the SYSV IPC API have been 1163 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1164 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1165 800100. 1166 116720090622: 1168 Layout of struct vnet has changed as routing related variables were 1169 moved to their own Vimage module. Modules need to be recompiled. Bump 1170 __FreeBSD_version to 800099. 1171 117220090619: 1173 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1174 respectively. As long as no more than 16 groups per process are used, 1175 no changes should be visible. When more than 16 groups are used, old 1176 binaries may fail if they call getgroups() or getgrouplist() with 1177 statically sized storage. Recompiling will work around this, but 1178 applications should be modified to use dynamically allocated storage 1179 for group arrays as POSIX.1-2008 does not cap an implementation's 1180 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1181 1182 NFS and portalfs mounts may also be affected as the list of groups is 1183 truncated to 16. Users of NFS who use more than 16 groups, should 1184 take care that negative group permissions are not used on the exported 1185 file systems as they will not be reliable unless a GSSAPI based 1186 authentication method is used. 1187 118820090616: 1189 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1190 option compiles in the support for adaptive spinning for lockmgrs 1191 which want to enable it. The lockinit() function now accepts the flag 1192 LK_ADAPTIVE in order to make the lock object subject to adaptive 1193 spinning when both held in write and read mode. 1194 119520090613: 1196 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1197 changed. User applications that use this ioctl need to be rebuilt. 1198 119920090611: 1200 The layout of struct thread has changed. Kernel and modules need to 1201 be rebuilt. 1202 120320090608: 1204 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1205 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1206 120720090602: 1208 window(1) has been removed from the base system. It can now be 1209 installed from ports. The port is called misc/window. 1210 121120090601: 1212 The way we are storing and accessing `routing table' entries has 1213 changed. Programs reading the FIB, like netstat, need to be 1214 re-compiled. 1215 121620090601: 1217 A new netisr implementation has been added for FreeBSD 8. Network 1218 file system modules, such as igmp, ipdivert, and others, should be 1219 rebuilt. 1220 Bump __FreeBSD_version to 800096. 1221 122220090530: 1223 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1224 more valid. 1225 122620090530: 1227 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1228 Bump __FreeBSD_version to 800094. 1229 123020090529: 1231 Add mnt_xflag field to 'struct mount'. File system modules need to be 1232 rebuilt. 1233 Bump __FreeBSD_version to 800093. 1234 123520090528: 1236 The compiling option ADAPTIVE_SX has been retired while it has been 1237 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1238 The KPI for sx_init_flags() changes as accepting flags: 1239 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1240 been introduced in order to handle the reversed logic. 1241 Bump __FreeBSD_version to 800092. 1242 124320090527: 1244 Add support for hierarchical jails. Remove global securelevel. 1245 Bump __FreeBSD_version to 800091. 1246 124720090523: 1248 The layout of struct vnet_net has changed, therefore modules 1249 need to be rebuilt. 1250 Bump __FreeBSD_version to 800090. 1251 125220090523: 1253 The newly imported zic(8) produces a new format in the output. Please 1254 run tzsetup(8) to install the newly created data to /etc/localtime. 1255 125620090520: 1257 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1258 hw.usb.* and is now consistent again with previous releases. 1259 126020090520: 1261 802.11 monitor mode support was revised and driver api's were changed. 1262 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1263 of DLT_IEEE802_11. No user-visible data structures were changed but 1264 applications that use DLT_IEEE802_11 may require changes. 1265 Bump __FreeBSD_version to 800088. 1266 126720090430: 1268 The layout of the following structs has changed: sysctl_oid, 1269 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1270 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1271 panics may be experienced. World rebuild is required for 1272 correctly checking networking state from userland. 1273 Bump __FreeBSD_version to 800085. 1274 127520090429: 1276 MLDv2 and Source-Specific Multicast (SSM) have been merged 1277 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1278 The implementation of SSM within FreeBSD's IPv6 stack closely 1279 follows the IPv4 implementation. 1280 1281 For kernel developers: 1282 1283 * The most important changes are that the ip6_output() and 1284 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1285 and this lock has been downgraded to a non-recursive mutex. 1286 1287 * As with the changes to the IPv4 stack to support SSM, filtering 1288 of inbound multicast traffic must now be performed by transport 1289 protocols within the IPv6 stack. This does not apply to TCP and 1290 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1291 1292 * The KPIs used by IPv6 multicast are similar to those used by 1293 the IPv4 stack, with the following differences: 1294 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1295 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1296 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1297 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1298 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1299 for MLDv1 have an additional 'timer' argument which is used to 1300 jitter the initial membership report for the solicited-node 1301 multicast membership on-link. 1302 * This is not strictly needed for MLDv2, which already jitters 1303 its report transmissions. However, the 'timer' argument is 1304 preserved in case MLDv1 is active on the interface. 1305 1306 * The KAME linked-list based IPv6 membership implementation has 1307 been refactored to use a vector similar to that used by the IPv4 1308 stack. 1309 Code which maintains a list of its own multicast memberships 1310 internally, e.g. carp, has been updated to reflect the new 1311 semantics. 1312 1313 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1314 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1315 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1316 implementation constraint which needs to be addressed in HEAD. 1317 1318 For application developers: 1319 1320 * The changes are broadly similar to those made for the IPv4 1321 stack. 1322 1323 * The use of IPv4 and IPv6 multicast socket options on the same 1324 socket, using mapped addresses, HAS NOT been tested or supported. 1325 1326 * There are a number of issues with the implementation of various 1327 IPv6 multicast APIs which need to be resolved in the API surface 1328 before the implementation is fully compatible with KAME userland 1329 use, and these are mostly to do with interface index treatment. 1330 1331 * The literature available discusses the use of either the delta / ASM 1332 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1333 using setsourcefilter(3)/getsourcefilter(3). For more information 1334 please refer to RFC 3768, 'Socket Interface Extensions for 1335 Multicast Source Filters'. 1336 1337 * Applications which use the published RFC 3678 APIs should be fine. 1338 1339 For systems administrators: 1340 1341 * The mtest(8) utility has been refactored to support IPv6, in 1342 addition to IPv4. Interface addresses are no longer accepted 1343 as arguments, their names must be used instead. The utility 1344 will map the interface name to its first IPv4 address as 1345 returned by getifaddrs(3). 1346 1347 * The ifmcstat(8) utility has also been updated to print the MLDv2 1348 endpoint state and source filter lists via sysctl(3). 1349 1350 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1351 loopback of IPv6 multicast datagrams by default; it defaults to 1 1352 to preserve the existing behaviour. Disabling multicast loopback is 1353 recommended for optimal system performance. 1354 1355 * The IPv6 MROUTING code has been changed to examine this sysctl 1356 instead of attempting to perform a group lookup before looping 1357 back forwarded datagrams. 1358 1359 Bump __FreeBSD_version to 800084. 1360 136120090422: 1362 Implement low-level Bluetooth HCI API. 1363 Bump __FreeBSD_version to 800083. 1364 136520090419: 1366 The layout of struct malloc_type, used by modules to register new 1367 memory allocation types, has changed. Most modules will need to 1368 be rebuilt or panics may be experienced. 1369 Bump __FreeBSD_version to 800081. 1370 137120090415: 1372 Anticipate overflowing inp_flags - add inp_flags2. 1373 This changes most offsets in inpcb, so checking v4 connection 1374 state will require a world rebuild. 1375 Bump __FreeBSD_version to 800080. 1376 137720090415: 1378 Add an llentry to struct route and struct route_in6. Modules 1379 embedding a struct route will need to be recompiled. 1380 Bump __FreeBSD_version to 800079. 1381 138220090414: 1383 The size of rt_metrics_lite and by extension rtentry has changed. 1384 Networking administration apps will need to be recompiled. 1385 The route command now supports show as an alias for get, weighting 1386 of routes, sticky and nostick flags to alter the behavior of stateful 1387 load balancing. 1388 Bump __FreeBSD_version to 800078. 1389 139020090408: 1391 Do not use Giant for kbdmux(4) locking. This is wrong and 1392 apparently causing more problems than it solves. This will 1393 re-open the issue where interrupt handlers may race with 1394 kbdmux(4) in polling mode. Typical symptoms include (but 1395 not limited to) duplicated and/or missing characters when 1396 low level console functions (such as gets) are used while 1397 interrupts are enabled (for example geli password prompt, 1398 mountroot prompt etc.). Disabling kbdmux(4) may help. 1399 140020090407: 1401 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1402 kernel modules referencing any of the above need to be recompiled. 1403 Bump __FreeBSD_version to 800075. 1404 140520090320: 1406 GEOM_PART has become the default partition slicer for storage devices, 1407 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1408 introduces some changes: 1409 1410 MSDOS/EBR: the devices created from MSDOS extended partition entries 1411 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1412 to devices with offset-based names. fstabs may need to be modified. 1413 1414 BSD: the "geometry does not match label" warning is harmless in most 1415 cases but it points to problems in file system misalignment with 1416 disk geometry. The "c" partition is now implicit, covers the whole 1417 top-level drive and cannot be (mis)used by users. 1418 1419 General: Kernel dumps are now not allowed to be written to devices 1420 whose partition types indicate they are meant to be used for file 1421 systems (or, in case of MSDOS partitions, as something else than 1422 the "386BSD" type). 1423 1424 Most of these changes date approximately from 200812. 1425 142620090319: 1427 The uscanner(4) driver has been removed from the kernel. This follows 1428 Linux removing theirs in 2.6 and making libusb the default interface 1429 (supported by sane). 1430 143120090319: 1432 The multicast forwarding code has been cleaned up. netstat(1) 1433 only relies on KVM now for printing bandwidth upcall meters. 1434 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1435 ip6_mroute_mod respectively. The config(5) options for statically 1436 compiling this code remain the same, i.e. 'options MROUTING'. 1437 143820090315: 1439 Support for the IFF_NEEDSGIANT network interface flag has been 1440 removed, which means that non-MPSAFE network device drivers are no 1441 longer supported. In particular, if_ar, if_sr, and network device 1442 drivers from the old (legacy) USB stack can no longer be built or 1443 used. 1444 144520090313: 1446 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1447 a bunch of new language catalog files have also been added. 1448 This means that some common libc messages are now localized and 1449 they depend on the LC_MESSAGES environmental variable. 1450 145120090313: 1452 The k8temp(4) driver has been renamed to amdtemp(4) since 1453 support for Family 10 and Family 11 CPU families was added. 1454 145520090309: 1456 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1457 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1458 1459 For kernel developers, the most important changes are that the 1460 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1461 and this lock has been downgraded to a non-recursive mutex. 1462 1463 Transport protocols (UDP, Raw IP) are now responsible for filtering 1464 inbound multicast traffic according to group membership and source 1465 filters. The imo_multicast_filter() KPI exists for this purpose. 1466 Transports which do not use multicast (SCTP, TCP) already reject 1467 multicast by default. Forwarding and receive performance may improve 1468 as a mutex acquisition is no longer needed in the ip_input() 1469 low-level input path. in_addmulti() and in_delmulti() are shimmed 1470 to new KPIs which exist to support SSM in-kernel. 1471 1472 For application developers, it is recommended that loopback of 1473 multicast datagrams be disabled for best performance, as this 1474 will still cause the lock to be taken for each looped-back 1475 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1476 be tuned to 0 to disable loopback by default; it defaults to 1 1477 to preserve the existing behaviour. 1478 1479 For systems administrators, to obtain best performance with 1480 multicast reception and multiple groups, it is always recommended 1481 that a card with a suitably precise hash filter is used. Hash 1482 collisions will still result in the lock being taken within the 1483 transport protocol input path to check group membership. 1484 1485 If deploying FreeBSD in an environment with IGMP snooping switches, 1486 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1487 enabled; this forces 224.0.0.0/24 group membership to be announced 1488 via IGMP. 1489 1490 The size of 'struct igmpstat' has changed; netstat needs to be 1491 recompiled to reflect this. 1492 Bump __FreeBSD_version to 800070. 1493 149420090309: 1495 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1496 updated to use it. This requires a buildworld/installworld in order to 1497 update the library and dependencies (usbconfig, etc). Its advisable to 1498 rebuild all ports which uses libusb. More specific directions are given 1499 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1500 libusb are no longer required and can be removed. 1501 150220090302: 1503 A workaround is committed to allow the creation of System V shared 1504 memory segment of size > 2 GB on the 64-bit architectures. 1505 Due to a limitation of the existing ABI, the shm_segsz member 1506 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1507 wrong for large segments. Note that limits must be explicitly 1508 raised to allow such segments to be created. 1509 151020090301: 1511 The layout of struct ifnet has changed, requiring a rebuild of all 1512 network device driver modules. 1513 151420090227: 1515 The /dev handling for the new USB stack has changed, a 1516 buildworld/installworld is required for libusb20. 1517 151820090223: 1519 The new USB2 stack has now been permanently moved in and all kernel and 1520 module names reverted to their previous values (eg, usb, ehci, ohci, 1521 ums, ...). The old usb stack can be compiled in by prefixing the name 1522 with the letter 'o', the old usb modules have been removed. 1523 Updating entry 20090216 for xorg and 20090215 for libmap may still 1524 apply. 1525 152620090217: 1527 The rc.conf(5) option if_up_delay has been renamed to 1528 defaultroute_delay to better reflect its purpose. If you have 1529 customized this setting in /etc/rc.conf you need to update it to 1530 use the new name. 1531 153220090216: 1533 xorg 7.4 wants to configure its input devices via hald which does not 1534 yet work with USB2. If the keyboard/mouse does not work in xorg then 1535 add 1536 Option "AllowEmptyInput" "off" 1537 to your ServerLayout section. This will cause X to use the configured 1538 kbd and mouse sections from your xorg.conf. 1539 154020090215: 1541 The GENERIC kernels for all architectures now default to the new USB2 1542 stack. No kernel config options or code have been removed so if a 1543 problem arises please report it and optionally revert to the old USB 1544 stack. If you are loading USB kernel modules or have a custom kernel 1545 that includes GENERIC then ensure that usb names are also changed over, 1546 eg uftdi -> usb2_serial_ftdi. 1547 1548 Older programs linked against the ports libusb 0.1 need to be 1549 redirected to the new stack's libusb20. /etc/libmap.conf can 1550 be used for this: 1551 # Map old usb library to new one for usb2 stack 1552 libusb-0.1.so.8 libusb20.so.1 1553 155420090209: 1555 All USB ethernet devices now attach as interfaces under the name ueN 1556 (eg. ue0). This is to provide a predictable name as vendors often 1557 change usb chipsets in a product without notice. 1558 155920090203: 1560 The ichsmb(4) driver has been changed to require SMBus slave 1561 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1562 All of the other SMBus controller drivers require left-justified 1563 slave addresses, so this change makes all the drivers provide the 1564 same interface. 1565 156620090201: 1567 INET6 statistics (struct ip6stat) was updated. 1568 netstat(1) needs to be recompiled. 1569 157020090119: 1571 NTFS has been removed from GENERIC kernel on amd64 to match 1572 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1573 will load ntfs.ko module automatically when NTFS support is 1574 actually needed, unless ntfs.ko is not installed or security 1575 level prohibits loading kernel modules. If either is the case, 1576 "options NTFS" has to be added into kernel config. 1577 157820090115: 1579 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1580 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1581 800061. User space tools that rely on the size of struct tcpcb in 1582 tcp_var.h (e.g. sockstat) need to be recompiled. 1583 158420081225: 1585 ng_tty(4) module updated to match the new TTY subsystem. 1586 Due to API change, user-level applications must be updated. 1587 New API support added to mpd5 CVS and expected to be present 1588 in next mpd5.3 release. 1589 159020081219: 1591 With __FreeBSD_version 800060 the makefs tool is part of 1592 the base system (it was a port). 1593 159420081216: 1595 The afdata and ifnet locks have been changed from mutexes to 1596 rwlocks, network modules will need to be re-compiled. 1597 159820081214: 1599 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1600 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1601 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1602 architecture and 40 bytes on 64-bit architecture. The userland 1603 applications "arp" and "ndp" have been updated accordingly. 1604 The output from "netstat -r" shows only routing entries and 1605 none of the L2 information. 1606 160720081130: 1608 __FreeBSD_version 800057 marks the switchover from the 1609 binary ath hal to source code. Users must add the line: 1610 1611 options AH_SUPPORT_AR5416 1612 1613 to their kernel config files when specifying: 1614 1615 device ath_hal 1616 1617 The ath_hal module no longer exists; the code is now compiled 1618 together with the driver in the ath module. It is now 1619 possible to tailor chip support (i.e. reduce the set of chips 1620 and thereby the code size); consult ath_hal(4) for details. 1621 162220081121: 1623 __FreeBSD_version 800054 adds memory barriers to 1624 <machine/atomic.h>, new interfaces to ifnet to facilitate 1625 multiple hardware transmit queues for cards that support 1626 them, and a lock-less ring-buffer implementation to 1627 enable drivers to more efficiently manage queueing of 1628 packets. 1629 163020081117: 1631 A new version of ZFS (version 13) has been merged to -HEAD. 1632 This version has zpool attribute "listsnapshots" off by 1633 default, which means "zfs list" does not show snapshots, 1634 and is the same as Solaris behavior. 1635 163620081028: 1637 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1638 163920081009: 1640 The uhci, ohci, ehci and slhci USB Host controller drivers have 1641 been put into separate modules. If you load the usb module 1642 separately through loader.conf you will need to load the 1643 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1644 controller add the following to loader.conf: 1645 1646 uhci_load="YES" 1647 ehci_load="YES" 1648 164920081009: 1650 The ABI used by the PMC toolset has changed. Please keep 1651 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1652 sync. 1653 165420081009: 1655 atapci kernel module now includes only generic PCI ATA 1656 driver. AHCI driver moved to ataahci kernel module. 1657 All vendor-specific code moved into separate kernel modules: 1658 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1659 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1660 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1661 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1662 166320080820: 1664 The TTY subsystem of the kernel has been replaced by a new 1665 implementation, which provides better scalability and an 1666 improved driver model. Most common drivers have been migrated to 1667 the new TTY subsystem, while others have not. The following 1668 drivers have not yet been ported to the new TTY layer: 1669 1670 PCI/ISA: 1671 cy, digi, rc, rp, sio 1672 1673 USB: 1674 ubser, ucycom 1675 1676 Line disciplines: 1677 ng_h4, ng_tty, ppp, sl, snp 1678 1679 Adding these drivers to your kernel configuration file shall 1680 cause compilation to fail. 1681 168220080818: 1683 ntpd has been upgraded to 4.2.4p5. 1684 168520080801: 1686 OpenSSH has been upgraded to 5.1p1. 1687 1688 For many years, FreeBSD's version of OpenSSH preferred DSA 1689 over RSA for host and user authentication keys. With this 1690 upgrade, we've switched to the vendor's default of RSA over 1691 DSA. This may cause upgraded clients to warn about unknown 1692 host keys even for previously known hosts. Users should 1693 follow the usual procedure for verifying host keys before 1694 accepting the RSA key. 1695 1696 This can be circumvented by setting the "HostKeyAlgorithms" 1697 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1698 command line. 1699 1700 Please note that the sequence of keys offered for 1701 authentication has been changed as well. You may want to 1702 specify IdentityFile in a different order to revert this 1703 behavior. 1704 170520080713: 1706 The sio(4) driver has been removed from the i386 and amd64 1707 kernel configuration files. This means uart(4) is now the 1708 default serial port driver on those platforms as well. 1709 1710 To prevent collisions with the sio(4) driver, the uart(4) driver 1711 uses different names for its device nodes. This means the 1712 onboard serial port will now most likely be called "ttyu0" 1713 instead of "ttyd0". You may need to reconfigure applications to 1714 use the new device names. 1715 1716 When using the serial port as a boot console, be sure to update 1717 /boot/device.hints and /etc/ttys before booting the new kernel. 1718 If you forget to do so, you can still manually specify the hints 1719 at the loader prompt: 1720 1721 set hint.uart.0.at="isa" 1722 set hint.uart.0.port="0x3F8" 1723 set hint.uart.0.flags="0x10" 1724 set hint.uart.0.irq="4" 1725 boot -s 1726 172720080609: 1728 The gpt(8) utility has been removed. Use gpart(8) to partition 1729 disks instead. 1730 173120080603: 1732 The version that Linuxulator emulates was changed from 2.4.2 1733 to 2.6.16. If you experience any problems with Linux binaries 1734 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1735 if it fixes the problem contact emulation mailing list. 1736 173720080525: 1738 ISDN4BSD (I4B) was removed from the src tree. You may need to 1739 update a your kernel configuration and remove relevant entries. 1740 174120080509: 1742 I have checked in code to support multiple routing tables. 1743 See the man pages setfib(1) and setfib(2). 1744 This is a hopefully backwards compatible version, 1745 but to make use of it you need to compile your kernel 1746 with options ROUTETABLES=2 (or more up to 16). 1747 174820080420: 1749 The 802.11 wireless support was redone to enable multi-bss 1750 operation on devices that are capable. The underlying device 1751 is no longer used directly but instead wlanX devices are 1752 cloned with ifconfig. This requires changes to rc.conf files. 1753 For example, change: 1754 ifconfig_ath0="WPA DHCP" 1755 to 1756 wlans_ath0=wlan0 1757 ifconfig_wlan0="WPA DHCP" 1758 see rc.conf(5) for more details. In addition, mergemaster of 1759 /etc/rc.d is highly recommended. Simultaneous update of userland 1760 and kernel wouldn't hurt either. 1761 1762 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1763 modules were merged into the base wlan module. All references 1764 to these modules (e.g. in kernel config files) must be removed. 1765 176620080408: 1767 psm(4) has gained write(2) support in native operation level. 1768 Arbitrary commands can be written to /dev/psm%d and status can 1769 be read back from it. Therefore, an application is responsible 1770 for status validation and error recovery. It is a no-op in 1771 other operation levels. 1772 177320080312: 1774 Support for KSE threading has been removed from the kernel. To 1775 run legacy applications linked against KSE libmap.conf may 1776 be used. The following libmap.conf may be used to ensure 1777 compatibility with any prior release: 1778 1779 libpthread.so.1 libthr.so.1 1780 libpthread.so.2 libthr.so.2 1781 libkse.so.3 libthr.so.3 1782 178320080301: 1784 The layout of struct vmspace has changed. This affects libkvm 1785 and any executables that link against libkvm and use the 1786 kvm_getprocs() function. In particular, but not exclusively, 1787 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1788 The effects are minimal, but it's advisable to upgrade world 1789 nonetheless. 1790 179120080229: 1792 The latest em driver no longer has support in it for the 1793 82575 adapter, this is now moved to the igb driver. The 1794 split was done to make new features that are incompatible 1795 with older hardware easier to do. 1796 179720080220: 1798 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1799 likewise the kernel option is now GEOM_LINUX_LVM. 1800 180120080211: 1802 The default NFS mount mode has changed from UDP to TCP for 1803 increased reliability. If you rely on (insecurely) NFS 1804 mounting across a firewall you may need to update your 1805 firewall rules. 1806 180720080208: 1808 Belatedly note the addition of m_collapse for compacting 1809 mbuf chains. 1810 181120080126: 1812 The fts(3) structures have been changed to use adequate 1813 integer types for their members and so to be able to cope 1814 with huge file trees. The old fts(3) ABI is preserved 1815 through symbol versioning in libc, so third-party binaries 1816 using fts(3) should still work, although they will not take 1817 advantage of the extended types. At the same time, some 1818 third-party software might fail to build after this change 1819 due to unportable assumptions made in its source code about 1820 fts(3) structure members. Such software should be fixed 1821 by its vendor or, in the worst case, in the ports tree. 1822 FreeBSD_version 800015 marks this change for the unlikely 1823 case that a portable fix is impossible. 1824 182520080123: 1826 To upgrade to -current after this date, you must be running 1827 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1828 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1829 183020071128: 1831 The ADAPTIVE_GIANT kernel option has been retired because its 1832 functionality is the default now. 1833 183420071118: 1835 The AT keyboard emulation of sunkbd(4) has been turned on 1836 by default. In order to make the special symbols of the Sun 1837 keyboards driven by sunkbd(4) work under X these now have 1838 to be configured the same way as Sun USB keyboards driven 1839 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1840 1841 Option "XkbLayout" "us" 1842 Option "XkbRules" "xorg" 1843 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1844 184520071024: 1846 It has been decided that it is desirable to provide ABI 1847 backwards compatibility to the FreeBSD 4/5/6 versions of the 1848 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1849 broken with the introduction of PCI domain support (see the 1850 20070930 entry). Unfortunately, this required the ABI of 1851 PCIOCGETCONF to be broken again in order to be able to 1852 provide backwards compatibility to the old version of that 1853 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1854 again. As for prominent ports this affects neither pciutils 1855 nor xorg-server this time, the hal port needs to be rebuilt 1856 however. 1857 185820071020: 1859 The misnamed kthread_create() and friends have been renamed 1860 to kproc_create() etc. Many of the callers already 1861 used kproc_start().. 1862 I will return kthread_create() and friends in a while 1863 with implementations that actually create threads, not procs. 1864 Renaming corresponds with version 800002. 1865 186620071010: 1867 RELENG_7 branched. 1868 1869COMMON ITEMS: 1870 1871 General Notes 1872 ------------- 1873 Avoid using make -j when upgrading. While generally safe, there are 1874 sometimes problems using -j to upgrade. If your upgrade fails with 1875 -j, please try again without -j. From time to time in the past there 1876 have been problems using -j with buildworld and/or installworld. This 1877 is especially true when upgrading between "distant" versions (eg one 1878 that cross a major release boundary or several minor releases, or when 1879 several months have passed on the -current branch). 1880 1881 Sometimes, obscure build problems are the result of environment 1882 poisoning. This can happen because the make utility reads its 1883 environment when searching for values for global variables. To run 1884 your build attempts in an "environmental clean room", prefix all make 1885 commands with 'env -i '. See the env(1) manual page for more details. 1886 1887 When upgrading from one major version to another it is generally best 1888 to upgrade to the latest code in the currently installed branch first, 1889 then do an upgrade to the new branch. This is the best-tested upgrade 1890 path, and has the highest probability of being successful. Please try 1891 this approach before reporting problems with a major version upgrade. 1892 1893 When upgrading a live system, having a root shell around before 1894 installing anything can help undo problems. Not having a root shell 1895 around can lead to problems if pam has changed too much from your 1896 starting point to allow continued authentication after the upgrade. 1897 1898 ZFS notes 1899 --------- 1900 When upgrading the boot ZFS pool to a new version, always follow 1901 these two steps: 1902 1903 1.) recompile and reinstall the ZFS boot loader and boot block 1904 (this is part of "make buildworld" and "make installworld") 1905 1906 2.) update the ZFS boot block on your boot drive 1907 1908 The following example updates the ZFS boot block on the first 1909 partition (freebsd-boot) of a GPT partitioned drive ad0: 1910 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1911 1912 Non-boot pools do not need these updates. 1913 1914 To build a kernel 1915 ----------------- 1916 If you are updating from a prior version of FreeBSD (even one just 1917 a few days old), you should follow this procedure. It is the most 1918 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1919 1920 make kernel-toolchain 1921 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1922 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1923 1924 To test a kernel once 1925 --------------------- 1926 If you just want to boot a kernel once (because you are not sure 1927 if it works, or if you want to boot a known bad kernel to provide 1928 debugging information) run 1929 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1930 nextboot -k testkernel 1931 1932 To just build a kernel when you know that it won't mess you up 1933 -------------------------------------------------------------- 1934 This assumes you are already running a CURRENT system. Replace 1935 ${arch} with the architecture of your machine (e.g. "i386", 1936 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1937 1938 cd src/sys/${arch}/conf 1939 config KERNEL_NAME_HERE 1940 cd ../compile/KERNEL_NAME_HERE 1941 make depend 1942 make 1943 make install 1944 1945 If this fails, go to the "To build a kernel" section. 1946 1947 To rebuild everything and install it on the current system. 1948 ----------------------------------------------------------- 1949 # Note: sometimes if you are running current you gotta do more than 1950 # is listed here if you are upgrading from a really old current. 1951 1952 <make sure you have good level 0 dumps> 1953 make buildworld 1954 make kernel KERNCONF=YOUR_KERNEL_HERE 1955 [1] 1956 <reboot in single user> [3] 1957 mergemaster -p [5] 1958 make installworld 1959 mergemaster -i [4] 1960 make delete-old [6] 1961 <reboot> 1962 1963 To cross-install current onto a separate partition 1964 -------------------------------------------------- 1965 # In this approach we use a separate partition to hold 1966 # current's root, 'usr', and 'var' directories. A partition 1967 # holding "/", "/usr" and "/var" should be about 2GB in 1968 # size. 1969 1970 <make sure you have good level 0 dumps> 1971 <boot into -stable> 1972 make buildworld 1973 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1974 <maybe newfs current's root partition> 1975 <mount current's root partition on directory ${CURRENT_ROOT}> 1976 make installworld DESTDIR=${CURRENT_ROOT} 1977 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1978 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1979 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1980 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1981 <reboot into current> 1982 <do a "native" rebuild/install as described in the previous section> 1983 <maybe install compatibility libraries from ports/misc/compat*> 1984 <reboot> 1985 1986 1987 To upgrade in-place from stable to current 1988 ---------------------------------------------- 1989 <make sure you have good level 0 dumps> 1990 make buildworld [9] 1991 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1992 [1] 1993 <reboot in single user> [3] 1994 mergemaster -p [5] 1995 make installworld 1996 mergemaster -i [4] 1997 make delete-old [6] 1998 <reboot> 1999 2000 Make sure that you've read the UPDATING file to understand the 2001 tweaks to various things you need. At this point in the life 2002 cycle of current, things change often and you are on your own 2003 to cope. The defaults can also change, so please read ALL of 2004 the UPDATING entries. 2005 2006 Also, if you are tracking -current, you must be subscribed to 2007 freebsd-current@freebsd.org. Make sure that before you update 2008 your sources that you have read and understood all the recent 2009 messages there. If in doubt, please track -stable which has 2010 much fewer pitfalls. 2011 2012 [1] If you have third party modules, such as vmware, you 2013 should disable them at this point so they don't crash your 2014 system on reboot. 2015 2016 [3] From the bootblocks, boot -s, and then do 2017 fsck -p 2018 mount -u / 2019 mount -a 2020 cd src 2021 adjkerntz -i # if CMOS is wall time 2022 Also, when doing a major release upgrade, it is required that 2023 you boot into single user mode to do the installworld. 2024 2025 [4] Note: This step is non-optional. Failure to do this step 2026 can result in a significant reduction in the functionality of the 2027 system. Attempting to do it by hand is not recommended and those 2028 that pursue this avenue should read this file carefully, as well 2029 as the archives of freebsd-current and freebsd-hackers mailing lists 2030 for potential gotchas. The -U option is also useful to consider. 2031 See mergemaster(8) for more information. 2032 2033 [5] Usually this step is a noop. However, from time to time 2034 you may need to do this if you get unknown user in the following 2035 step. It never hurts to do it all the time. You may need to 2036 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2037 install) after the buildworld before this step if you last updated 2038 from current before 20130425 or from -stable before 20130430. 2039 2040 [6] This only deletes old files and directories. Old libraries 2041 can be deleted by "make delete-old-libs", but you have to make 2042 sure that no program is using those libraries anymore. 2043 2044 [8] In order to have a kernel that can run the 4.x binaries needed to 2045 do an installworld, you must include the COMPAT_FREEBSD4 option in 2046 your kernel. Failure to do so may leave you with a system that is 2047 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2048 required to run the 5.x binaries on more recent kernels. And so on 2049 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2050 2051 Make sure that you merge any new devices from GENERIC since the 2052 last time you updated your kernel config file. 2053 2054 [9] When checking out sources, you must include the -P flag to have 2055 cvs prune empty directories. 2056 2057 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2058 "?=" instead of the "=" assignment operator, so that buildworld can 2059 override the CPUTYPE if it needs to. 2060 2061 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2062 not on the command line, or in /etc/make.conf. buildworld will 2063 warn if it is improperly defined. 2064FORMAT: 2065 2066This file contains a list, in reverse chronological order, of major 2067breakages in tracking -current. It is not guaranteed to be a complete 2068list of such breakages, and only contains entries since October 10, 2007. 2069If you need to see UPDATING entries from before that date, you will need 2070to fetch an UPDATING file from an older FreeBSD release. 2071 2072Copyright information: 2073 2074Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2075 2076Redistribution, publication, translation and use, with or without 2077modification, in full or in part, in any form or format of this 2078document are permitted without further permission from the author. 2079 2080THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2081IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2082WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2083DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2084INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2085(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2086SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2087HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2088STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2089IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2090POSSIBILITY OF SUCH DAMAGE. 2091 2092Contact Warner Losh if you have any questions about your use of 2093this document. 2094 2095$FreeBSD: stable/10/UPDATING 268399 2014-07-08 14:04:36Z emaste $ 2096