UPDATING revision 256283
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 1920131010: 20 The rc.d/jail script has been updated to support jail(8) 21 configuration file. The "jail_<jname>_*" rc.conf(5) variables 22 for per-jail configuration are automatically converted to 23 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 24 This is transparently backward compatible. See below about some 25 incompatibilities and rc.conf(5) manual page for more details. 26 27 These variables are now deprecated in favor of jail(8) configuration 28 file. One can use "rc.d/jail config <jname>" command to generate 29 a jail(8) configuration file in /var/run/jail.<jname>.conf without 30 running the jail(8) utility. The default pathname of the 31 configuration file is /etc/jail.conf and can be specified by 32 using $jail_conf or $jail_<jname>_conf variables. 33 34 Please note that jail_devfs_ruleset accepts an integer at 35 this moment. Please consider to rewrite the ruleset name 36 with an integer. 37 3820130930: 39 BIND has been removed from the base system. If all you need 40 is a local resolver, simply enable and start the local_unbound 41 service instead. Otherwise, several versions of BIND are 42 available in the ports tree. 43 4420130916: 45 With the addition of unbound(8), a new unbound user is now 46 required during installworld. "mergemaster -p" can be used to 47 add the user prior to installworld, as documented in the handbook. 48 4920130911: 50 OpenSSH is now built with DNSSEC support, and will by default 51 silently trust signed SSHFP records. This can be controlled with 52 the VerifyHostKeyDNS client configuration setting. DNSSEC support 53 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 54 5520130906: 56 The GNU Compiler Collection and C++ standard library (libstdc++) 57 are no longer built by default on platforms where clang is the system 58 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 59 options in src.conf. 60 6120130905: 62 The PROCDESC kernel option is now part of the GENERIC kernel 63 configuration and is required for the rwhod(8) to work. 64 If you are using custom kernel configuration, you should include 65 'options PROCDESC'. 66 6720130905: 68 The API and ABI related to the Capsicum framework was modified 69 in backward incompatible way. The userland libraries and programs 70 have to be recompiled to work with the new kernel. This includes the 71 following libraries and programs, but the whole buildworld is 72 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 73 kdump, procstat, rwho, rwhod, uniq. 74 7520130903: 76 AES-NI intrinsic support has been added to gcc. The AES-NI module 77 has been updated to use this support. A new gcc is required to build 78 the aesni module on both i386 and amd64. 79 8020130821: 81 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 82 Thus "device padlock_rng" and "device rdrand_rng" should be 83 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 84 8520130813: 86 WITH_ICONV has been split into two feature sets. WITH_ICONV now 87 enables just the iconv* functionality and is now on by default. 88 WITH_LIBICONV_COMPAT enables the libiconv api and link time 89 compatability. Set WITHOUT_ICONV to build the old way. 90 If you have been using WITH_ICONV before, you will very likely 91 need to turn on WITH_LIBICONV_COMPAT. 92 9320130806: 94 INVARIANTS option now enables DEBUG for code with OpenSolaris and 95 Illumos origin, including ZFS. If you have INVARIANTS in your 96 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 97 explicitly. 98 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 99 locks if WITNESS option was set. Because that generated a lot of 100 witness(9) reports and all of them were believed to be false 101 positives, this is no longer done. New option OPENSOLARIS_WITNESS 102 can be used to achieve the previous behavior. 103 10420130806: 105 Timer values in IPv6 data structures now use time_uptime instead 106 of time_second. Although this is not a user-visible functional 107 change, userland utilities which directly use them---ndp(8), 108 rtadvd(8), and rtsold(8) in the base system---need to be updated 109 to r253970 or later. 110 11120130802: 112 find -delete can now delete the pathnames given as arguments, 113 instead of only files found below them or if the pathname did 114 not contain any slashes. Formerly, the following error message 115 would result: 116 117 find: -delete: <path>: relative path potentially not safe 118 119 Deleting the pathnames given as arguments can be prevented 120 without error messages using -mindepth 1 or by changing 121 directory and passing "." as argument to find. This works in the 122 old as well as the new version of find. 123 12420130726: 125 Behavior of devfs rules path matching has been changed. 126 Pattern is now always matched against fully qualified devfs 127 path and slash characters must be explicitly matched by 128 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 129 subdirectories must be reviewed. 130 13120130716: 132 The default ARM ABI has changed to the ARM EABI. The old ABI is 133 incompatible with the ARM EABI and all programs and modules will 134 need to be rebuilt to work with a new kernel. 135 136 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 137 138 NOTE: Support for the old ABI will be removed in the future and 139 users are advised to upgrade. 140 14120130709: 142 pkg_install has been disconnected from the build if you really need it 143 you should add WITH_PKGTOOLS in your src.conf(5). 144 14520130709: 146 Most of network statistics structures were changed to be able 147 keep 64-bits counters. Thus all tools, that work with networking 148 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 149 15020130629: 151 Fix targets that run multiple make's to use && rather than ; 152 so that subsequent steps depend on success of previous. 153 154 NOTE: if building 'universe' with -j* on stable/8 or stable/9 155 it would be better to start the build using bmake, to avoid 156 overloading the machine. 157 15820130618: 159 Fix a bug that allowed a tracing process (e.g. gdb) to write 160 to a memory-mapped file in the traced process's address space 161 even if neither the traced process nor the tracing process had 162 write access to that file. 163 16420130615: 165 CVS has been removed from the base system. An exact copy 166 of the code is available from the devel/cvs port. 167 16820130613: 169 Some people report the following error after the switch to bmake: 170 171 make: illegal option -- J 172 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 173 ... 174 *** [buildworld] Error code 2 175 176 this likely due to an old instance of make in 177 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 178 which src/Makefile will use that blindly, if it exists, so if 179 you see the above error: 180 181 rm -rf `make -V MAKEPATH` 182 183 should resolve it. 184 18520130516: 186 Use bmake by default. 187 Whereas before one could choose to build with bmake via 188 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 189 make. The goal is to remove these knobs for 10-RELEASE. 190 191 It is worth noting that bmake (like gmake) treats the command 192 line as the unit of failure, rather than statements within the 193 command line. Thus '(cd some/where && dosomething)' is safer 194 than 'cd some/where; dosomething'. The '()' allows consistent 195 behavior in parallel build. 196 19720130429: 198 Fix a bug that allows NFS clients to issue READDIR on files. 199 20020130426: 201 The WITHOUT_IDEA option has been removed because 202 the IDEA patent expired. 203 20420130426: 205 The sysctl which controls TRIM support under ZFS has been renamed 206 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 207 enabled by default. 208 20920130425: 210 The mergemaster command now uses the default MAKEOBJDIRPREFIX 211 rather than creating it's own in the temporary directory in 212 order allow access to bootstrapped versions of tools such as 213 install and mtree. When upgrading from version of FreeBSD where 214 the install command does not support -l, you will need to 215 install a new mergemaster command if mergemaster -p is required. 216 This can be accomplished with the command (cd src/usr.sbin/mergemaster 217 && make install). 218 21920130404: 220 Legacy ATA stack, disabled and replaced by new CAM-based one since 221 FreeBSD 9.0, completely removed from the sources. Kernel modules 222 atadisk and atapi*, user-level tools atacontrol and burncd are 223 removed. Kernel option `options ATA_CAM` is now permanently enabled 224 and removed. 225 22620130319: 227 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 228 and socketpair(2). Software, in particular Kerberos, may 229 automatically detect and use these during building. The resulting 230 binaries will not work on older kernels. 231 23220130308: 233 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 234 information, see the respective 20130304 entry). 235 23620130304: 237 Recent commits to callout(9) changed the size of struct callout, 238 so the KBI is probably heavily disturbed. Also, some functions 239 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 240 by macros. Every kernel module using it won't load, so rebuild 241 is requested. 242 243 The ctl device has been re-enabled in GENERIC for i386 and amd64, 244 but does not initialize by default (because of the new CTL_DISABLE 245 option) to save memory. To re-enable it, remove the CTL_DISABLE 246 option from the kernel config file or set kern.cam.ctl.disable=0 247 in /boot/loader.conf. 248 24920130301: 250 The ctl device has been disabled in GENERIC for i386 and amd64. 251 This was done due to the extra memory being allocated at system 252 initialisation time by the ctl driver which was only used if 253 a CAM target device was created. This makes a FreeBSD system 254 unusable on 128MB or less of RAM. 255 25620130208: 257 A new compression method (lz4) has been merged to -HEAD. Please 258 refer to zpool-features(7) for more information. 259 260 Please refer to the "ZFS notes" section of this file for information 261 on upgrading boot ZFS pools. 262 26320130129: 264 A BSD-licensed patch(1) variant has been added and is installed 265 as bsdpatch, being the GNU version the default patch. 266 To inverse the logic and use the BSD-licensed one as default, 267 while having the GNU version installed as gnupatch, rebuild 268 and install world with the WITH_BSD_PATCH knob set. 269 27020130121: 271 Due to the use of the new -l option to install(1) during build 272 and install, you must take care not to directly set the INSTALL 273 make variable in your /etc/make.conf, /etc/src.conf, or on the 274 command line. If you wish to use the -C flag for all installs 275 you may be able to add INSTALL+=-C to /etc/make.conf or 276 /etc/src.conf. 277 27820130118: 279 The install(1) option -M has changed meaning and now takes an 280 argument that is a file or path to append logs to. In the 281 unlikely event that -M was the last option on the command line 282 and the command line contained at least two files and a target 283 directory the first file will have logs appended to it. The -M 284 option served little practical purpose in the last decade so its 285 use is expected to be extremely rare. 286 28720121223: 288 After switching to Clang as the default compiler some users of ZFS 289 on i386 systems started to experience stack overflow kernel panics. 290 Please consider using 'options KSTACK_PAGES=4' in such configurations. 291 29220121222: 293 GEOM_LABEL now mangles label names read from file system metadata. 294 Mangling affect labels containing spaces, non-printable characters, 295 '%' or '"'. Device names in /etc/fstab and other places may need to 296 be updated. 297 29820121217: 299 By default, only the 10 most recent kernel dumps will be saved. To 300 restore the previous behaviour (no limit on the number of kernel dumps 301 stored in the dump directory) add the following line to /etc/rc.conf: 302 303 savecore_flags="" 304 30520121201: 306 With the addition of auditdistd(8), a new auditdistd user is now 307 required during installworld. "mergemaster -p" can be used to 308 add the user prior to installworld, as documented in the handbook. 309 31020121117: 311 The sin6_scope_id member variable in struct sockaddr_in6 is now 312 filled by the kernel before passing the structure to the userland via 313 sysctl or routing socket. This means the KAME-specific embedded scope 314 id in sin6_addr.s6_addr[2] is always cleared in userland application. 315 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 316 __FreeBSD_version is bumped to 1000025. 317 31820121105: 319 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 320 This means that the world and kernel will be compiled with clang 321 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 322 and /usr/bin/cpp. To disable this behavior and revert to building 323 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 324 of current may need to bootstrap WITHOUT_CLANG first if the clang 325 build fails (its compatibility window doesn't extend to the 9 stable 326 branch point). 327 32820121102: 329 The IPFIREWALL_FORWARD kernel option has been removed. Its 330 functionality now turned on by default. 331 33220121023: 333 The ZERO_COPY_SOCKET kernel option has been removed and 334 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 335 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 336 mechanism which is not safe and may result in kernel crashes. 337 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 338 driver supports disposeable external page sized mbuf storage. 339 Proper replacements for both zero-copy mechanisms are under 340 consideration and will eventually lead to complete removal 341 of the two kernel options. 342 34320121023: 344 The IPv4 network stack has been converted to network byte 345 order. The following modules need to be recompiled together 346 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 347 pf(4), ipfw(4), ng_ipfw(4), stf(4). 348 34920121022: 350 Support for non-MPSAFE filesystems was removed from VFS. The 351 VFS_VERSION was bumped, all filesystem modules shall be 352 recompiled. 353 35420121018: 355 All the non-MPSAFE filesystems have been disconnected from 356 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 357 portalfs, smbfs, xfs. 358 35920121016: 360 The interface cloning API and ABI has changed. The following 361 modules need to be recompiled together with kernel: 362 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 363 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 364 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 365 36620121015: 367 The sdhci driver was split in two parts: sdhci (generic SD Host 368 Controller logic) and sdhci_pci (actual hardware driver). 369 No kernel config modifications are required, but if you 370 load sdhc as a module you must switch to sdhci_pci instead. 371 37220121014: 373 Import the FUSE kernel and userland support into base system. 374 37520121013: 376 The GNU sort(1) program has been removed since the BSD-licensed 377 sort(1) has been the default for quite some time and no serious 378 problems have been reported. The corresponding WITH_GNU_SORT 379 knob has also gone. 380 38120121006: 382 The pfil(9) API/ABI for AF_INET family has been changed. Packet 383 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 384 with new kernel. 385 38620121001: 387 The net80211(4) ABI has been changed to allow for improved driver 388 PS-POLL and power-save support. All wireless drivers need to be 389 recompiled to work with the new kernel. 390 39120120913: 392 The random(4) support for the VIA hardware random number 393 generator (`PADLOCK') is no longer enabled unconditionally. 394 Add the padlock_rng device in the custom kernel config if 395 needed. The GENERIC kernels on i386 and amd64 do include the 396 device, so the change only affects the custom kernel 397 configurations. 398 39920120908: 400 The pf(4) packet filter ABI has been changed. pfctl(8) and 401 snmp_pf module need to be recompiled to work with new kernel. 402 40320120828: 404 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 405 to -HEAD. Pools that have empty_bpobj in active state can not be 406 imported read-write with ZFS implementations that do not support 407 this feature. For more information read the zpool-features(5) 408 manual page. 409 41020120727: 411 The sparc64 ZFS loader has been changed to no longer try to auto- 412 detect ZFS providers based on diskN aliases but now requires these 413 to be explicitly listed in the OFW boot-device environment variable. 414 41520120712: 416 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 417 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 418 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 419 42020120712: 421 The following sysctls and tunables have been renamed for consistency 422 with other variables: 423 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 424 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 425 42620120628: 427 The sort utility has been replaced with BSD sort. For now, GNU sort 428 is also available as "gnusort" or the default can be set back to 429 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 430 installed as "bsdsort". 431 43220120611: 433 A new version of ZFS (pool version 5000) has been merged to -HEAD. 434 Starting with this version the old system of ZFS pool versioning 435 is superseded by "feature flags". This concept enables forward 436 compatibility against certain future changes in functionality of ZFS 437 pools. The first read-only compatible "feature flag" for ZFS pools 438 is named "com.delphix:async_destroy". For more information 439 read the new zpool-features(5) manual page. 440 Please refer to the "ZFS notes" section of this file for information 441 on upgrading boot ZFS pools. 442 44320120417: 444 The malloc(3) implementation embedded in libc now uses sources imported 445 as contrib/jemalloc. The most disruptive API change is to 446 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 447 delete it prior to installworld, and optionally re-create it using the 448 new format after rebooting. See malloc.conf(5) for details 449 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 450 NAMESPACE section). 451 45220120328: 453 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 454 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 455 now spelled mips. This is to aid compatibility with third-party 456 software that expects this naming scheme in uname(3). Little-endian 457 settings are unchanged. If you are updating a big-endian mips64 machine 458 from before this change, you may need to set MACHINE_ARCH=mips64 in 459 your environment before the new build system will recognize your machine. 460 46120120306: 462 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 463 platforms. 464 46520120229: 466 Now unix domain sockets behave "as expected" on nullfs(5). Previously 467 nullfs(5) did not pass through all behaviours to the underlying layer, 468 as a result if we bound to a socket on the lower layer we could connect 469 only to the lower path; if we bound to the upper layer we could connect 470 only to the upper path. The new behavior is one can connect to both the 471 lower and the upper paths regardless what layer path one binds to. 472 47320120211: 474 The getifaddrs upgrade path broken with 20111215 has been restored. 475 If you have upgraded in between 20111215 and 20120209 you need to 476 recompile libc again with your kernel. You still need to recompile 477 world to be able to configure CARP but this restriction already 478 comes from 20111215. 479 48020120114: 481 The set_rcvar() function has been removed from /etc/rc.subr. All 482 base and ports rc.d scripts have been updated, so if you have a 483 port installed with a script in /usr/local/etc/rc.d you can either 484 hand-edit the rcvar= line, or reinstall the port. 485 486 An easy way to handle the mass-update of /etc/rc.d: 487 rm /etc/rc.d/* && mergemaster -i 488 48920120109: 490 panic(9) now stops other CPUs in the SMP systems, disables interrupts 491 on the current CPU and prevents other threads from running. 492 This behavior can be reverted using the kern.stop_scheduler_on_panic 493 tunable/sysctl. 494 The new behavior can be incompatible with kern.sync_on_panic. 495 49620111215: 497 The carp(4) facility has been changed significantly. Configuration 498 of the CARP protocol via ifconfig(8) has changed, as well as format 499 of CARP events submitted to devd(8) has changed. See manual pages 500 for more information. The arpbalance feature of carp(4) is currently 501 not supported anymore. 502 503 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 504 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 505 need to be recompiled. 506 50720111122: 508 The acpi_wmi(4) status device /dev/wmistat has been renamed to 509 /dev/wmistat0. 510 51120111108: 512 The option VFS_ALLOW_NONMPSAFE option has been added in order to 513 explicitely support non-MPSAFE filesystems. 514 It is on by default for all supported platform at this present 515 time. 516 51720111101: 518 The broken amd(4) driver has been replaced with esp(4) in the amd64, 519 i386 and pc98 GENERIC kernel configuration files. 520 52120110930: 522 sysinstall has been removed 523 52420110923: 525 The stable/9 branch created in subversion. This corresponds to the 526 RELENG_9 branch in CVS. 527 52820110913: 529 This commit modifies vfs_register() so that it uses a hash 530 calculation to set vfc_typenum, which is enabled by default. 531 The first time a system is booted after this change, the 532 vfc_typenum values will change for all file systems. The 533 main effect of this is a change to the NFS server file handles 534 for file systems that use vfc_typenum in their fsid, such as ZFS. 535 It will, however, prevent vfc_typenum from changing when file 536 systems are loaded in a different order for subsequent reboots. 537 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 538 until you are ready to remount all NFS clients after a reboot. 539 54020110828: 541 Bump the shared library version numbers for libraries that 542 do not use symbol versioning, have changed the ABI compared 543 to stable/8 and which shared library version was not bumped. 544 Done as part of 9.0-RELEASE cycle. 545 54620110815: 547 During the merge of Capsicum features, the fget(9) KPI was modified. 548 This may require the rebuilding of out-of-tree device drivers -- 549 issues have been reported specifically with the nVidia device driver. 550 __FreeBSD_version is bumped to 900041. 551 552 Also, there is a period between 20110811 and 20110814 where the 553 special devices /dev/{stdin,stdout,stderr} did not work correctly. 554 Building world from a kernel during that window may not work. 555 55620110628: 557 The packet filter (pf) code has been updated to OpenBSD 4.5. 558 You need to update userland tools to be in sync with kernel. 559 This update breaks backward compatibility with earlier pfsync(4) 560 versions. Care must be taken when updating redundant firewall setups. 561 56220110608: 563 The following sysctls and tunables are retired on x86 platforms: 564 machdep.hlt_cpus 565 machdep.hlt_logical_cpus 566 The following sysctl is retired: 567 machdep.hyperthreading_allowed 568 The sysctls were supposed to provide a way to dynamically offline and 569 online selected CPUs on x86 platforms, but the implementation has not 570 been reliable especially with SCHED_ULE scheduler. 571 machdep.hyperthreading_allowed tunable is still available to ignore 572 hyperthreading CPUs at OS level. 573 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 574 where X is an APIC ID of a CPU. Be advised, though, that disabling 575 CPUs in non-uniform fashion will result in non-uniform topology and 576 may lead to sub-optimal system performance with SCHED_ULE, which is 577 a default scheduler. 578 57920110607: 580 cpumask_t type is retired and cpuset_t is used in order to describe 581 a mask of CPUs. 582 58320110531: 584 Changes to ifconfig(8) for dynamic address family detection mandate 585 that you are running a kernel of 20110525 or later. Make sure to 586 follow the update procedure to boot a new kernel before installing 587 world. 588 58920110513: 590 Support for sun4v architecture is officially dropped 591 59220110503: 593 Several KPI breaking changes have been committed to the mii(4) layer, 594 the PHY drivers and consequently some Ethernet drivers using mii(4). 595 This means that miibus.ko and the modules of the affected Ethernet 596 drivers need to be recompiled. 597 598 Note to kernel developers: Given that the OUI bit reversion problem 599 was fixed as part of these changes all mii(4) commits related to OUIs, 600 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 601 handling, no longer can be merged verbatim to stable/8 and previous 602 branches. 603 60420110430: 605 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 606 into their kernel configurations along with 'device pci'. 607 60820110427: 609 The default NFS client is now the new NFS client, so fstype "newnfs" 610 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 611 Although mounts via fstype "nfs" will usually work without userland 612 changes, it is recommended that the mount(8) and mount_nfs(8) 613 commands be rebuilt from sources and that a link to mount_nfs called 614 mount_oldnfs be created. The new client is compiled into the 615 kernel with "options NFSCL" and this is needed for diskless root 616 file systems. The GENERIC kernel configs have been changed to use 617 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 618 To use the regular/old client, you can "mount -t oldnfs ...". For 619 a diskless root file system, you must also include a line like: 620 621 vfs.root.mountfrom="oldnfs:" 622 623 in the boot/loader.conf on the root fs on the NFS server to make 624 a diskless root fs use the old client. 625 62620110424: 627 The GENERIC kernels for all architectures now default to the new 628 CAM-based ATA stack. It means that all legacy ATA drivers were 629 removed and replaced by respective CAM drivers. If you are using 630 ATA device names in /etc/fstab or other places, make sure to update 631 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 632 where 'Y's are the sequential numbers starting from zero for each type 633 in order of detection, unless configured otherwise with tunables, 634 see cam(4)). There will be symbolic links created in /dev/ to map 635 old adX devices to the respective adaY. They should provide basic 636 compatibility for file systems mounting in most cases, but they do 637 not support old user-level APIs and do not have respective providers 638 in GEOM. Consider using updated management tools with new device names. 639 640 It is possible to load devices ahci, ata, siis and mvs as modules, 641 but option ATA_CAM should remain in kernel configuration to make ata 642 module work as CAM driver supporting legacy ATA controllers. Device ata 643 still can be used in modular fashion (atacore + ...). Modules atadisk 644 and atapi* are not used and won't affect operation in ATA_CAM mode. 645 Note that to use CAM-based ATA kernel should include CAM devices 646 scbus, pass, da (or explicitly ada), cd and optionally others. All of 647 them are parts of the cam module. 648 649 ataraid(4) functionality is now supported by the RAID GEOM class. 650 To use it you can load geom_raid kernel module and use graid(8) tool 651 for management. Instead of /dev/arX device names, use /dev/raid/rX. 652 653 No kernel config options or code have been removed, so if a problem 654 arises, please report it and optionally revert to the old ATA stack. 655 In order to do it you can remove from the kernel config: 656 options ATA_CAM 657 device ahci 658 device mvs 659 device siis 660 , and instead add back: 661 device atadisk # ATA disk drives 662 device ataraid # ATA RAID drives 663 device atapicd # ATAPI CDROM drives 664 device atapifd # ATAPI floppy drives 665 device atapist # ATAPI tape drives 666 66720110423: 668 The default NFS server has been changed to the new server, which 669 was referred to as the experimental server. If you need to switch 670 back to the old NFS server, you must now put the "-o" option on 671 both the mountd and nfsd commands. This can be done using the 672 mountd_flags and nfs_server_flags rc.conf variables until an 673 update to the rc scripts is committed, which is coming soon. 674 67520110418: 676 The GNU Objective-C runtime library (libobjc), and other Objective-C 677 related components have been removed from the base system. If you 678 require an Objective-C library, please use one of the available ports. 679 68020110331: 681 ath(4) has been split into bus- and device- modules. if_ath contains 682 the HAL, the TX rate control and the network device code. if_ath_pci 683 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 684 contains the AHB glue. Users need to load both if_ath_pci and if_ath 685 in order to use ath on everything else. 686 687 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 688 need to load if_ath and if_ath_pci for ath(4) operation. 689 69020110314: 691 As part of the replacement of sysinstall, the process of building 692 release media has changed significantly. For details, please re-read 693 release(7), which has been updated to reflect the new build process. 694 69520110218: 696 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 697 is the last available version under GPLv2. It brings a number of new 698 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 699 4.1 and SSE 4.2), better support for powerpc64, a number of new 700 directives, and lots of other small improvements. See the ChangeLog 701 file in contrib/binutils for the full details. 702 70320110218: 704 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 705 compliant, and will now use half of hash for authentication. 706 This will break interoperability with all stacks (including all 707 actual FreeBSD versions) who implement 708 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 709 authentication). 710 The only workaround with such peers is to use another HMAC 711 algorithm for IPsec ("phase 2") authentication. 712 71320110207: 714 Remove the uio_yield prototype and symbol. This function has 715 been misnamed since it was introduced and should not be 716 globally exposed with this name. The equivalent functionality 717 is now available using kern_yield(curthread->td_user_pri). 718 The function remains undocumented. 719 72020110112: 721 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 722 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 723 for scalar sysctls is defined but disabled. Code that needs 724 UQUAD to pass the type checking that must compile on older 725 systems where the define is not present can check against 726 __FreeBSD_version >= 900030. 727 728 The system dialog(1) has been replaced with a new version previously 729 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 730 with the previous version, but the libdialog associated with it has 731 a largely incompatible API. As such, the original version of libdialog 732 will be kept temporarily as libodialog, until its base system consumers 733 are replaced or updated. Bump __FreeBSD_version to 900030. 734 73520110103: 736 If you are trying to run make universe on a -stable system, and you get 737 the following warning: 738 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 739 unknown. config(8) likely too old." 740 or something similar to it, then you must upgrade your -stable system 741 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 742 stable/8) or build the config from the latest stable/8 branch and 743 install it on your system. 744 745 Prior to this date, building a current universe on 8-stable system from 746 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 747 error in the first kernel build phase. A new config on those old 748 systems will fix that problem for older versions of -current. 749 75020101228: 751 The TCP stack has been modified to allow Khelp modules to interact with 752 it via helper hook points and store per-connection data in the TCP 753 control block. Bump __FreeBSD_version to 900029. User space tools that 754 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 755 be recompiled. 756 75720101114: 758 Generic IEEE 802.3 annex 31B full duplex flow control support has been 759 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 760 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 761 to take advantage of it instead of using custom implementations. This 762 means that these drivers now no longer unconditionally advertise 763 support for flow control but only do so if flow control is a selected 764 media option. This was implemented in the generic support that way in 765 order to allow flow control to be switched on and off via ifconfig(8) 766 with the PHY specific default to typically off in order to protect 767 from unwanted effects. Consequently, if you used flow control with 768 one of the above mentioned drivers you now need to explicitly enable 769 it, for example via: 770 ifconfig bge0 media auto mediaopt flowcontrol 771 772 Along with the above mentioned changes generic support for setting 773 1000baseT master mode also has been added and brgphy(4), ciphy(4), 774 e1000phy(4) as well as ip1000phy(4) have been converted to take 775 advantage of it. This means that these drivers now no longer take the 776 link0 parameter for selecting master mode but the master media option 777 has to be used instead, for example like in the following: 778 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 779 780 Selection of master mode now is also available with all other PHY 781 drivers supporting 1000baseT. 782 78320101111: 784 The TCP stack has received a significant update to add support for 785 modularised congestion control and generally improve the clarity of 786 congestion control decisions. Bump __FreeBSD_version to 900025. User 787 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 788 sockstat) need to be recompiled. 789 79020101002: 791 The man(1) utility has been replaced by a new version that no longer 792 uses /etc/manpath.config. Please consult man.conf(5) for how to 793 migrate local entries to the new format. 794 79520100928: 796 The copyright strings printed by login(1) and sshd(8) at the time of a 797 new connection have been removed to follow other operating systems and 798 upstream sshd. 799 80020100915: 801 A workaround for a fixed ld bug has been removed in kernel code, 802 so make sure that your system ld is built from sources after 803 revision 210245 from 2010-07-19 (r211583 if building head kernel 804 on stable/8, r211584 for stable/7; both from 2010-08-21). 805 A symptom of incorrect ld version is different addresses for 806 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 807 80820100913: 809 The $ipv6_prefer variable in rc.conf(5) has been split into 810 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 811 812 The $ip6addrctl_policy is a variable to choose a pre-defined 813 address selection policy set by ip6addrctl(8). A value 814 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 815 default is "AUTO". 816 817 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 818 flag (see an entry of 20090926) is set on an interface with no 819 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 820 security reason. If you want IPv6 link-local address on all 821 interfaces by default, set this to "YES". 822 823 The old ipv6_prefer="YES" is equivalent to 824 ipv6_activate_all_interfaces="YES" and 825 ip6addrctl_policy="ipv6_prefer". 826 82720100913: 828 DTrace has grown support for userland tracing. Due to this, DTrace is 829 now i386 and amd64 only. 830 dtruss(1) is now installed by default on those systems and a new 831 kernel module is needed for userland tracing: fasttrap. 832 No changes to your kernel config file are necessary to enable 833 userland tracing, but you might consider adding 'STRIP=' and 834 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 835 to have informative userland stack traces in DTrace (ustack). 836 83720100725: 838 The acpi_aiboost(4) driver has been removed in favor of the new 839 aibs(4) driver. You should update your kernel configuration file. 840 84120100722: 842 BSD grep has been imported to the base system and it is built by 843 default. It is completely BSD licensed, highly GNU-compatible, uses 844 less memory than its GNU counterpart and has a small codebase. 845 However, it is slower than its GNU counterpart, which is mostly 846 noticeable for larger searches, for smaller ones it is measurable 847 but not significant. The reason is complex, the most important factor 848 is that we lack a modern and efficient regex library and GNU 849 overcomes this by optimizing the searches internally. Future work 850 on improving the regex performance is planned, for the meantime, 851 users that need better performance, can build GNU grep instead by 852 setting the WITH_GNU_GREP knob. 853 85420100713: 855 Due to the import of powerpc64 support, all existing powerpc kernel 856 configuration files must be updated with a machine directive like this: 857 machine powerpc powerpc 858 859 In addition, an updated config(8) is required to build powerpc kernels 860 after this change. 861 86220100713: 863 A new version of ZFS (version 15) has been merged to -HEAD. 864 This version uses a python library for the following subcommands: 865 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 866 For full functionality of these commands the following port must 867 be installed: sysutils/py-zfs 868 86920100429: 870 'vm_page's are now hashed by physical address to an array of mutexes. 871 Currently this is only used to serialize access to hold_count. Over 872 time the page queue mutex will be peeled away. This changes the size 873 of pmap on every architecture. And requires all callers of vm_page_hold 874 and vm_page_unhold to be updated. 875 87620100402: 877 WITH_CTF can now be specified in src.conf (not recommended, there 878 are some problems with static executables), make.conf (would also 879 affect ports which do not use GNU make and do not override the 880 compile targets) or in the kernel config (via "makeoptions 881 WITH_CTF=yes"). 882 When WITH_CTF was specified there before this was silently ignored, 883 so make sure that WITH_CTF is not used in places which could lead 884 to unwanted behavior. 885 88620100311: 887 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 888 to allow 32-bit compatibility on non-x86 platforms. All kernel 889 configurations on amd64 and ia64 platforms using these options must 890 be modified accordingly. 891 89220100113: 893 The utmp user accounting database has been replaced with utmpx, 894 the user accounting interface standardized by POSIX. 895 Unfortunately the semantics of utmp and utmpx don't match, 896 making it practically impossible to support both interfaces. 897 The user accounting database is used by tools like finger(1), 898 last(1), talk(1), w(1) and ac(8). 899 900 All applications in the base system use utmpx. This means only 901 local binaries (e.g. from the ports tree) may still use these 902 utmp database files. These applications must be rebuilt to make 903 use of utmpx. 904 905 After the system has been upgraded, it is safe to remove the old 906 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 907 assuming their contents is of no importance anymore. Old wtmp 908 databases can only be used by last(1) and ac(8) after they have 909 been converted to the new format using wtmpcvt(1). 910 91120100108: 912 Introduce the kernel thread "deadlock resolver" (which can be enabled 913 via the DEADLKRES option, see NOTES for more details) and the 914 sleepq_type() function for sleepqueues. 915 91620091202: 917 The rc.firewall and rc.firewall6 were unified, and 918 rc.firewall6 and rc.d/ip6fw were removed. 919 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 920 variables are obsoleted. Instead, the following new rc 921 variables are added to rc.d/ipfw: 922 923 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 924 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 925 firewall_simple_onet_ipv6, firewall_trusted_ipv6 926 927 The meanings correspond to the relevant IPv4 variables. 928 92920091125: 930 8.0-RELEASE. 931 93220091113: 933 The default terminal emulation for syscons(4) has been changed 934 from cons25 to xterm on all platforms except pc98. This means 935 that the /etc/ttys file needs to be updated to ensure correct 936 operation of applications on the console. 937 938 The terminal emulation style can be toggled per window by using 939 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 940 options can be used to change the compile-time default back to 941 cons25. 942 943 To prevent graphical artifacts, make sure the TERM environment 944 variable is set to match the terminal emulation that is being 945 performed by syscons(4). 946 94720091109: 948 The layout of the structure ieee80211req_scan_result has changed. 949 Applications that require wireless scan results (e.g. ifconfig(8)) 950 from net80211 need to be recompiled. 951 952 Applications such as wpa_supplicant(8) may require a full world 953 build without using NO_CLEAN in order to get synchronized with the 954 new structure. 955 95620091025: 957 The iwn(4) driver has been updated to support the 5000 and 5150 series. 958 There's one kernel module for each firmware. Adding "device iwnfw" 959 to the kernel configuration file means including all three firmware 960 images inside the kernel. If you want to include just the one for 961 your wireless card, use the devices iwn4965fw, iwn5000fw or 962 iwn5150fw. 963 96420090926: 965 The rc.d/network_ipv6, IPv6 configuration script has been integrated 966 into rc.d/netif. The changes are the following: 967 968 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 969 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 970 Note that both variables need the "inet6" keyword at the head. 971 972 Do not set $ipv6_network_interfaces manually if you do not 973 understand what you are doing. It is not needed in most cases. 974 975 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 976 they are obsolete. 977 978 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 979 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 980 981 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 982 all configured interfaces have "inet6 accept_rtadv" in the 983 $ifconfig_IF_ipv6. These are for backward compatibility. 984 985 3. A new variable $ipv6_prefer has been added. If NO, IPv6 986 functionality of interfaces with no corresponding 987 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 988 and the default address selection policy of ip6addrctl(8) 989 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 990 Note that if you want to configure IPv6 functionality on the 991 disabled interfaces after boot, first you need to clear the flag by 992 using ifconfig(8) like: 993 994 ifconfig em0 inet6 -ifdisabled 995 996 If YES, the default address selection policy is set as 997 IPv6-preferred. 998 999 The default value of $ipv6_prefer is NO. 1000 1001 4. If your system need to receive Router Advertisement messages, 1002 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1003 scripts automatically invoke rtsol(8) when the interface becomes 1004 UP. The Router Advertisement messages are used for SLAAC 1005 (State-Less Address AutoConfiguration). 1006 100720090922: 1008 802.11s D3.03 support was committed. This is incompatible with the 1009 previous code, which was based on D3.0. 1010 101120090912: 1012 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1013 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1014 control whether accepting Router Advertisement messages or not. 1015 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1016 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1017 The ifconfig(8) utility now supports these flags. 1018 101920090910: 1020 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1021 mount(8) and -a option for df(1) to see them. 1022 102320090825: 1024 The old tunable hw.bus.devctl_disable has been superseded by 1025 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1026 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1027 is 1000. 1028 102920090813: 1030 Remove the option STOP_NMI. The default action is now to use NMI only 1031 for KDB via the newly introduced function stop_cpus_hard() and 1032 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1033 103420090803: 1035 The stable/8 branch created in subversion. This corresponds to the 1036 RELENG_8 branch in CVS. 1037 103820090719: 1039 Bump the shared library version numbers for all libraries that do not 1040 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1041 __FreeBSD_version to 800105. 1042 104320090714: 1044 Due to changes in the implementation of virtual network stack support, 1045 all network-related kernel modules must be recompiled. As this change 1046 breaks the ABI, bump __FreeBSD_version to 800104. 1047 104820090713: 1049 The TOE interface to the TCP syncache has been modified to remove 1050 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1051 The cxgb driver is the only TOE consumer affected by this change, and 1052 needs to be recompiled along with the kernel. As this change breaks 1053 the ABI, bump __FreeBSD_version to 800103. 1054 105520090712: 1056 Padding has been added to struct tcpcb, sackhint and tcpstat in 1057 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1058 maintaining the ABI. However, this change breaks the ABI, so bump 1059 __FreeBSD_version to 800102. User space tools that rely on the size of 1060 any of these structs (e.g. sockstat) need to be recompiled. 1061 106220090630: 1063 The NFS_LEGACYRPC option has been removed along with the old kernel 1064 RPC implementation that this option selected. Kernel configurations 1065 may need to be adjusted. 1066 106720090629: 1068 The network interface device nodes at /dev/net/<interface> have been 1069 removed. All ioctl operations can be performed the normal way using 1070 routing sockets. The kqueue functionality can generally be replaced 1071 with routing sockets. 1072 107320090628: 1074 The documentation from the FreeBSD Documentation Project (Handbook, 1075 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1076 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1077 107820090624: 1079 The ABI of various structures related to the SYSV IPC API have been 1080 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1081 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1082 800100. 1083 108420090622: 1085 Layout of struct vnet has changed as routing related variables were 1086 moved to their own Vimage module. Modules need to be recompiled. Bump 1087 __FreeBSD_version to 800099. 1088 108920090619: 1090 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1091 respectively. As long as no more than 16 groups per process are used, 1092 no changes should be visible. When more than 16 groups are used, old 1093 binaries may fail if they call getgroups() or getgrouplist() with 1094 statically sized storage. Recompiling will work around this, but 1095 applications should be modified to use dynamically allocated storage 1096 for group arrays as POSIX.1-2008 does not cap an implementation's 1097 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1098 1099 NFS and portalfs mounts may also be affected as the list of groups is 1100 truncated to 16. Users of NFS who use more than 16 groups, should 1101 take care that negative group permissions are not used on the exported 1102 file systems as they will not be reliable unless a GSSAPI based 1103 authentication method is used. 1104 110520090616: 1106 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1107 option compiles in the support for adaptive spinning for lockmgrs 1108 which want to enable it. The lockinit() function now accepts the flag 1109 LK_ADAPTIVE in order to make the lock object subject to adaptive 1110 spinning when both held in write and read mode. 1111 111220090613: 1113 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1114 changed. User applications that use this ioctl need to be rebuilt. 1115 111620090611: 1117 The layout of struct thread has changed. Kernel and modules need to 1118 be rebuilt. 1119 112020090608: 1121 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1122 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1123 112420090602: 1125 window(1) has been removed from the base system. It can now be 1126 installed from ports. The port is called misc/window. 1127 112820090601: 1129 The way we are storing and accessing `routing table' entries has 1130 changed. Programs reading the FIB, like netstat, need to be 1131 re-compiled. 1132 113320090601: 1134 A new netisr implementation has been added for FreeBSD 8. Network 1135 file system modules, such as igmp, ipdivert, and others, should be 1136 rebuilt. 1137 Bump __FreeBSD_version to 800096. 1138 113920090530: 1140 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1141 more valid. 1142 114320090530: 1144 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1145 Bump __FreeBSD_version to 800094. 1146 114720090529: 1148 Add mnt_xflag field to 'struct mount'. File system modules need to be 1149 rebuilt. 1150 Bump __FreeBSD_version to 800093. 1151 115220090528: 1153 The compiling option ADAPTIVE_SX has been retired while it has been 1154 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1155 The KPI for sx_init_flags() changes as accepting flags: 1156 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1157 been introduced in order to handle the reversed logic. 1158 Bump __FreeBSD_version to 800092. 1159 116020090527: 1161 Add support for hierarchical jails. Remove global securelevel. 1162 Bump __FreeBSD_version to 800091. 1163 116420090523: 1165 The layout of struct vnet_net has changed, therefore modules 1166 need to be rebuilt. 1167 Bump __FreeBSD_version to 800090. 1168 116920090523: 1170 The newly imported zic(8) produces a new format in the output. Please 1171 run tzsetup(8) to install the newly created data to /etc/localtime. 1172 117320090520: 1174 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1175 hw.usb.* and is now consistent again with previous releases. 1176 117720090520: 1178 802.11 monitor mode support was revised and driver api's were changed. 1179 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1180 of DLT_IEEE802_11. No user-visible data structures were changed but 1181 applications that use DLT_IEEE802_11 may require changes. 1182 Bump __FreeBSD_version to 800088. 1183 118420090430: 1185 The layout of the following structs has changed: sysctl_oid, 1186 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1187 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1188 panics may be experienced. World rebuild is required for 1189 correctly checking networking state from userland. 1190 Bump __FreeBSD_version to 800085. 1191 119220090429: 1193 MLDv2 and Source-Specific Multicast (SSM) have been merged 1194 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1195 The implementation of SSM within FreeBSD's IPv6 stack closely 1196 follows the IPv4 implementation. 1197 1198 For kernel developers: 1199 1200 * The most important changes are that the ip6_output() and 1201 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1202 and this lock has been downgraded to a non-recursive mutex. 1203 1204 * As with the changes to the IPv4 stack to support SSM, filtering 1205 of inbound multicast traffic must now be performed by transport 1206 protocols within the IPv6 stack. This does not apply to TCP and 1207 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1208 1209 * The KPIs used by IPv6 multicast are similar to those used by 1210 the IPv4 stack, with the following differences: 1211 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1212 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1213 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1214 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1215 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1216 for MLDv1 have an additional 'timer' argument which is used to 1217 jitter the initial membership report for the solicited-node 1218 multicast membership on-link. 1219 * This is not strictly needed for MLDv2, which already jitters 1220 its report transmissions. However, the 'timer' argument is 1221 preserved in case MLDv1 is active on the interface. 1222 1223 * The KAME linked-list based IPv6 membership implementation has 1224 been refactored to use a vector similar to that used by the IPv4 1225 stack. 1226 Code which maintains a list of its own multicast memberships 1227 internally, e.g. carp, has been updated to reflect the new 1228 semantics. 1229 1230 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1231 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1232 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1233 implementation constraint which needs to be addressed in HEAD. 1234 1235 For application developers: 1236 1237 * The changes are broadly similar to those made for the IPv4 1238 stack. 1239 1240 * The use of IPv4 and IPv6 multicast socket options on the same 1241 socket, using mapped addresses, HAS NOT been tested or supported. 1242 1243 * There are a number of issues with the implementation of various 1244 IPv6 multicast APIs which need to be resolved in the API surface 1245 before the implementation is fully compatible with KAME userland 1246 use, and these are mostly to do with interface index treatment. 1247 1248 * The literature available discusses the use of either the delta / ASM 1249 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1250 using setsourcefilter(3)/getsourcefilter(3). For more information 1251 please refer to RFC 3768, 'Socket Interface Extensions for 1252 Multicast Source Filters'. 1253 1254 * Applications which use the published RFC 3678 APIs should be fine. 1255 1256 For systems administrators: 1257 1258 * The mtest(8) utility has been refactored to support IPv6, in 1259 addition to IPv4. Interface addresses are no longer accepted 1260 as arguments, their names must be used instead. The utility 1261 will map the interface name to its first IPv4 address as 1262 returned by getifaddrs(3). 1263 1264 * The ifmcstat(8) utility has also been updated to print the MLDv2 1265 endpoint state and source filter lists via sysctl(3). 1266 1267 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1268 loopback of IPv6 multicast datagrams by default; it defaults to 1 1269 to preserve the existing behaviour. Disabling multicast loopback is 1270 recommended for optimal system performance. 1271 1272 * The IPv6 MROUTING code has been changed to examine this sysctl 1273 instead of attempting to perform a group lookup before looping 1274 back forwarded datagrams. 1275 1276 Bump __FreeBSD_version to 800084. 1277 127820090422: 1279 Implement low-level Bluetooth HCI API. 1280 Bump __FreeBSD_version to 800083. 1281 128220090419: 1283 The layout of struct malloc_type, used by modules to register new 1284 memory allocation types, has changed. Most modules will need to 1285 be rebuilt or panics may be experienced. 1286 Bump __FreeBSD_version to 800081. 1287 128820090415: 1289 Anticipate overflowing inp_flags - add inp_flags2. 1290 This changes most offsets in inpcb, so checking v4 connection 1291 state will require a world rebuild. 1292 Bump __FreeBSD_version to 800080. 1293 129420090415: 1295 Add an llentry to struct route and struct route_in6. Modules 1296 embedding a struct route will need to be recompiled. 1297 Bump __FreeBSD_version to 800079. 1298 129920090414: 1300 The size of rt_metrics_lite and by extension rtentry has changed. 1301 Networking administration apps will need to be recompiled. 1302 The route command now supports show as an alias for get, weighting 1303 of routes, sticky and nostick flags to alter the behavior of stateful 1304 load balancing. 1305 Bump __FreeBSD_version to 800078. 1306 130720090408: 1308 Do not use Giant for kbdmux(4) locking. This is wrong and 1309 apparently causing more problems than it solves. This will 1310 re-open the issue where interrupt handlers may race with 1311 kbdmux(4) in polling mode. Typical symptoms include (but 1312 not limited to) duplicated and/or missing characters when 1313 low level console functions (such as gets) are used while 1314 interrupts are enabled (for example geli password prompt, 1315 mountroot prompt etc.). Disabling kbdmux(4) may help. 1316 131720090407: 1318 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1319 kernel modules referencing any of the above need to be recompiled. 1320 Bump __FreeBSD_version to 800075. 1321 132220090320: 1323 GEOM_PART has become the default partition slicer for storage devices, 1324 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1325 introduces some changes: 1326 1327 MSDOS/EBR: the devices created from MSDOS extended partition entries 1328 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1329 to devices with offset-based names. fstabs may need to be modified. 1330 1331 BSD: the "geometry does not match label" warning is harmless in most 1332 cases but it points to problems in file system misalignment with 1333 disk geometry. The "c" partition is now implicit, covers the whole 1334 top-level drive and cannot be (mis)used by users. 1335 1336 General: Kernel dumps are now not allowed to be written to devices 1337 whose partition types indicate they are meant to be used for file 1338 systems (or, in case of MSDOS partitions, as something else than 1339 the "386BSD" type). 1340 1341 Most of these changes date approximately from 200812. 1342 134320090319: 1344 The uscanner(4) driver has been removed from the kernel. This follows 1345 Linux removing theirs in 2.6 and making libusb the default interface 1346 (supported by sane). 1347 134820090319: 1349 The multicast forwarding code has been cleaned up. netstat(1) 1350 only relies on KVM now for printing bandwidth upcall meters. 1351 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1352 ip6_mroute_mod respectively. The config(5) options for statically 1353 compiling this code remain the same, i.e. 'options MROUTING'. 1354 135520090315: 1356 Support for the IFF_NEEDSGIANT network interface flag has been 1357 removed, which means that non-MPSAFE network device drivers are no 1358 longer supported. In particular, if_ar, if_sr, and network device 1359 drivers from the old (legacy) USB stack can no longer be built or 1360 used. 1361 136220090313: 1363 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1364 a bunch of new language catalog files have also been added. 1365 This means that some common libc messages are now localized and 1366 they depend on the LC_MESSAGES environmental variable. 1367 136820090313: 1369 The k8temp(4) driver has been renamed to amdtemp(4) since 1370 support for Family 10 and Family 11 CPU families was added. 1371 137220090309: 1373 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1374 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1375 1376 For kernel developers, the most important changes are that the 1377 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1378 and this lock has been downgraded to a non-recursive mutex. 1379 1380 Transport protocols (UDP, Raw IP) are now responsible for filtering 1381 inbound multicast traffic according to group membership and source 1382 filters. The imo_multicast_filter() KPI exists for this purpose. 1383 Transports which do not use multicast (SCTP, TCP) already reject 1384 multicast by default. Forwarding and receive performance may improve 1385 as a mutex acquisition is no longer needed in the ip_input() 1386 low-level input path. in_addmulti() and in_delmulti() are shimmed 1387 to new KPIs which exist to support SSM in-kernel. 1388 1389 For application developers, it is recommended that loopback of 1390 multicast datagrams be disabled for best performance, as this 1391 will still cause the lock to be taken for each looped-back 1392 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1393 be tuned to 0 to disable loopback by default; it defaults to 1 1394 to preserve the existing behaviour. 1395 1396 For systems administrators, to obtain best performance with 1397 multicast reception and multiple groups, it is always recommended 1398 that a card with a suitably precise hash filter is used. Hash 1399 collisions will still result in the lock being taken within the 1400 transport protocol input path to check group membership. 1401 1402 If deploying FreeBSD in an environment with IGMP snooping switches, 1403 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1404 enabled; this forces 224.0.0.0/24 group membership to be announced 1405 via IGMP. 1406 1407 The size of 'struct igmpstat' has changed; netstat needs to be 1408 recompiled to reflect this. 1409 Bump __FreeBSD_version to 800070. 1410 141120090309: 1412 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1413 updated to use it. This requires a buildworld/installworld in order to 1414 update the library and dependencies (usbconfig, etc). Its advisable to 1415 rebuild all ports which uses libusb. More specific directions are given 1416 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1417 libusb are no longer required and can be removed. 1418 141920090302: 1420 A workaround is committed to allow the creation of System V shared 1421 memory segment of size > 2 GB on the 64-bit architectures. 1422 Due to a limitation of the existing ABI, the shm_segsz member 1423 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1424 wrong for large segments. Note that limits must be explicitly 1425 raised to allow such segments to be created. 1426 142720090301: 1428 The layout of struct ifnet has changed, requiring a rebuild of all 1429 network device driver modules. 1430 143120090227: 1432 The /dev handling for the new USB stack has changed, a 1433 buildworld/installworld is required for libusb20. 1434 143520090223: 1436 The new USB2 stack has now been permanently moved in and all kernel and 1437 module names reverted to their previous values (eg, usb, ehci, ohci, 1438 ums, ...). The old usb stack can be compiled in by prefixing the name 1439 with the letter 'o', the old usb modules have been removed. 1440 Updating entry 20090216 for xorg and 20090215 for libmap may still 1441 apply. 1442 144320090217: 1444 The rc.conf(5) option if_up_delay has been renamed to 1445 defaultroute_delay to better reflect its purpose. If you have 1446 customized this setting in /etc/rc.conf you need to update it to 1447 use the new name. 1448 144920090216: 1450 xorg 7.4 wants to configure its input devices via hald which does not 1451 yet work with USB2. If the keyboard/mouse does not work in xorg then 1452 add 1453 Option "AllowEmptyInput" "off" 1454 to your ServerLayout section. This will cause X to use the configured 1455 kbd and mouse sections from your xorg.conf. 1456 145720090215: 1458 The GENERIC kernels for all architectures now default to the new USB2 1459 stack. No kernel config options or code have been removed so if a 1460 problem arises please report it and optionally revert to the old USB 1461 stack. If you are loading USB kernel modules or have a custom kernel 1462 that includes GENERIC then ensure that usb names are also changed over, 1463 eg uftdi -> usb2_serial_ftdi. 1464 1465 Older programs linked against the ports libusb 0.1 need to be 1466 redirected to the new stack's libusb20. /etc/libmap.conf can 1467 be used for this: 1468 # Map old usb library to new one for usb2 stack 1469 libusb-0.1.so.8 libusb20.so.1 1470 147120090209: 1472 All USB ethernet devices now attach as interfaces under the name ueN 1473 (eg. ue0). This is to provide a predictable name as vendors often 1474 change usb chipsets in a product without notice. 1475 147620090203: 1477 The ichsmb(4) driver has been changed to require SMBus slave 1478 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1479 All of the other SMBus controller drivers require left-justified 1480 slave addresses, so this change makes all the drivers provide the 1481 same interface. 1482 148320090201: 1484 INET6 statistics (struct ip6stat) was updated. 1485 netstat(1) needs to be recompiled. 1486 148720090119: 1488 NTFS has been removed from GENERIC kernel on amd64 to match 1489 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1490 will load ntfs.ko module automatically when NTFS support is 1491 actually needed, unless ntfs.ko is not installed or security 1492 level prohibits loading kernel modules. If either is the case, 1493 "options NTFS" has to be added into kernel config. 1494 149520090115: 1496 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1497 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1498 800061. User space tools that rely on the size of struct tcpcb in 1499 tcp_var.h (e.g. sockstat) need to be recompiled. 1500 150120081225: 1502 ng_tty(4) module updated to match the new TTY subsystem. 1503 Due to API change, user-level applications must be updated. 1504 New API support added to mpd5 CVS and expected to be present 1505 in next mpd5.3 release. 1506 150720081219: 1508 With __FreeBSD_version 800060 the makefs tool is part of 1509 the base system (it was a port). 1510 151120081216: 1512 The afdata and ifnet locks have been changed from mutexes to 1513 rwlocks, network modules will need to be re-compiled. 1514 151520081214: 1516 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1517 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1518 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1519 architecture and 40 bytes on 64-bit architecture. The userland 1520 applications "arp" and "ndp" have been updated accordingly. 1521 The output from "netstat -r" shows only routing entries and 1522 none of the L2 information. 1523 152420081130: 1525 __FreeBSD_version 800057 marks the switchover from the 1526 binary ath hal to source code. Users must add the line: 1527 1528 options AH_SUPPORT_AR5416 1529 1530 to their kernel config files when specifying: 1531 1532 device ath_hal 1533 1534 The ath_hal module no longer exists; the code is now compiled 1535 together with the driver in the ath module. It is now 1536 possible to tailor chip support (i.e. reduce the set of chips 1537 and thereby the code size); consult ath_hal(4) for details. 1538 153920081121: 1540 __FreeBSD_version 800054 adds memory barriers to 1541 <machine/atomic.h>, new interfaces to ifnet to facilitate 1542 multiple hardware transmit queues for cards that support 1543 them, and a lock-less ring-buffer implementation to 1544 enable drivers to more efficiently manage queueing of 1545 packets. 1546 154720081117: 1548 A new version of ZFS (version 13) has been merged to -HEAD. 1549 This version has zpool attribute "listsnapshots" off by 1550 default, which means "zfs list" does not show snapshots, 1551 and is the same as Solaris behavior. 1552 155320081028: 1554 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1555 155620081009: 1557 The uhci, ohci, ehci and slhci USB Host controller drivers have 1558 been put into separate modules. If you load the usb module 1559 separately through loader.conf you will need to load the 1560 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1561 controller add the following to loader.conf: 1562 1563 uhci_load="YES" 1564 ehci_load="YES" 1565 156620081009: 1567 The ABI used by the PMC toolset has changed. Please keep 1568 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1569 sync. 1570 157120081009: 1572 atapci kernel module now includes only generic PCI ATA 1573 driver. AHCI driver moved to ataahci kernel module. 1574 All vendor-specific code moved into separate kernel modules: 1575 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1576 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1577 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1578 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1579 158020080820: 1581 The TTY subsystem of the kernel has been replaced by a new 1582 implementation, which provides better scalability and an 1583 improved driver model. Most common drivers have been migrated to 1584 the new TTY subsystem, while others have not. The following 1585 drivers have not yet been ported to the new TTY layer: 1586 1587 PCI/ISA: 1588 cy, digi, rc, rp, sio 1589 1590 USB: 1591 ubser, ucycom 1592 1593 Line disciplines: 1594 ng_h4, ng_tty, ppp, sl, snp 1595 1596 Adding these drivers to your kernel configuration file shall 1597 cause compilation to fail. 1598 159920080818: 1600 ntpd has been upgraded to 4.2.4p5. 1601 160220080801: 1603 OpenSSH has been upgraded to 5.1p1. 1604 1605 For many years, FreeBSD's version of OpenSSH preferred DSA 1606 over RSA for host and user authentication keys. With this 1607 upgrade, we've switched to the vendor's default of RSA over 1608 DSA. This may cause upgraded clients to warn about unknown 1609 host keys even for previously known hosts. Users should 1610 follow the usual procedure for verifying host keys before 1611 accepting the RSA key. 1612 1613 This can be circumvented by setting the "HostKeyAlgorithms" 1614 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1615 command line. 1616 1617 Please note that the sequence of keys offered for 1618 authentication has been changed as well. You may want to 1619 specify IdentityFile in a different order to revert this 1620 behavior. 1621 162220080713: 1623 The sio(4) driver has been removed from the i386 and amd64 1624 kernel configuration files. This means uart(4) is now the 1625 default serial port driver on those platforms as well. 1626 1627 To prevent collisions with the sio(4) driver, the uart(4) driver 1628 uses different names for its device nodes. This means the 1629 onboard serial port will now most likely be called "ttyu0" 1630 instead of "ttyd0". You may need to reconfigure applications to 1631 use the new device names. 1632 1633 When using the serial port as a boot console, be sure to update 1634 /boot/device.hints and /etc/ttys before booting the new kernel. 1635 If you forget to do so, you can still manually specify the hints 1636 at the loader prompt: 1637 1638 set hint.uart.0.at="isa" 1639 set hint.uart.0.port="0x3F8" 1640 set hint.uart.0.flags="0x10" 1641 set hint.uart.0.irq="4" 1642 boot -s 1643 164420080609: 1645 The gpt(8) utility has been removed. Use gpart(8) to partition 1646 disks instead. 1647 164820080603: 1649 The version that Linuxulator emulates was changed from 2.4.2 1650 to 2.6.16. If you experience any problems with Linux binaries 1651 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1652 if it fixes the problem contact emulation mailing list. 1653 165420080525: 1655 ISDN4BSD (I4B) was removed from the src tree. You may need to 1656 update a your kernel configuration and remove relevant entries. 1657 165820080509: 1659 I have checked in code to support multiple routing tables. 1660 See the man pages setfib(1) and setfib(2). 1661 This is a hopefully backwards compatible version, 1662 but to make use of it you need to compile your kernel 1663 with options ROUTETABLES=2 (or more up to 16). 1664 166520080420: 1666 The 802.11 wireless support was redone to enable multi-bss 1667 operation on devices that are capable. The underlying device 1668 is no longer used directly but instead wlanX devices are 1669 cloned with ifconfig. This requires changes to rc.conf files. 1670 For example, change: 1671 ifconfig_ath0="WPA DHCP" 1672 to 1673 wlans_ath0=wlan0 1674 ifconfig_wlan0="WPA DHCP" 1675 see rc.conf(5) for more details. In addition, mergemaster of 1676 /etc/rc.d is highly recommended. Simultaneous update of userland 1677 and kernel wouldn't hurt either. 1678 1679 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1680 modules were merged into the base wlan module. All references 1681 to these modules (e.g. in kernel config files) must be removed. 1682 168320080408: 1684 psm(4) has gained write(2) support in native operation level. 1685 Arbitrary commands can be written to /dev/psm%d and status can 1686 be read back from it. Therefore, an application is responsible 1687 for status validation and error recovery. It is a no-op in 1688 other operation levels. 1689 169020080312: 1691 Support for KSE threading has been removed from the kernel. To 1692 run legacy applications linked against KSE libmap.conf may 1693 be used. The following libmap.conf may be used to ensure 1694 compatibility with any prior release: 1695 1696 libpthread.so.1 libthr.so.1 1697 libpthread.so.2 libthr.so.2 1698 libkse.so.3 libthr.so.3 1699 170020080301: 1701 The layout of struct vmspace has changed. This affects libkvm 1702 and any executables that link against libkvm and use the 1703 kvm_getprocs() function. In particular, but not exclusively, 1704 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1705 The effects are minimal, but it's advisable to upgrade world 1706 nonetheless. 1707 170820080229: 1709 The latest em driver no longer has support in it for the 1710 82575 adapter, this is now moved to the igb driver. The 1711 split was done to make new features that are incompatible 1712 with older hardware easier to do. 1713 171420080220: 1715 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1716 likewise the kernel option is now GEOM_LINUX_LVM. 1717 171820080211: 1719 The default NFS mount mode has changed from UDP to TCP for 1720 increased reliability. If you rely on (insecurely) NFS 1721 mounting across a firewall you may need to update your 1722 firewall rules. 1723 172420080208: 1725 Belatedly note the addition of m_collapse for compacting 1726 mbuf chains. 1727 172820080126: 1729 The fts(3) structures have been changed to use adequate 1730 integer types for their members and so to be able to cope 1731 with huge file trees. The old fts(3) ABI is preserved 1732 through symbol versioning in libc, so third-party binaries 1733 using fts(3) should still work, although they will not take 1734 advantage of the extended types. At the same time, some 1735 third-party software might fail to build after this change 1736 due to unportable assumptions made in its source code about 1737 fts(3) structure members. Such software should be fixed 1738 by its vendor or, in the worst case, in the ports tree. 1739 FreeBSD_version 800015 marks this change for the unlikely 1740 case that a portable fix is impossible. 1741 174220080123: 1743 To upgrade to -current after this date, you must be running 1744 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1745 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1746 174720071128: 1748 The ADAPTIVE_GIANT kernel option has been retired because its 1749 functionality is the default now. 1750 175120071118: 1752 The AT keyboard emulation of sunkbd(4) has been turned on 1753 by default. In order to make the special symbols of the Sun 1754 keyboards driven by sunkbd(4) work under X these now have 1755 to be configured the same way as Sun USB keyboards driven 1756 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1757 1758 Option "XkbLayout" "us" 1759 Option "XkbRules" "xorg" 1760 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1761 176220071024: 1763 It has been decided that it is desirable to provide ABI 1764 backwards compatibility to the FreeBSD 4/5/6 versions of the 1765 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1766 broken with the introduction of PCI domain support (see the 1767 20070930 entry). Unfortunately, this required the ABI of 1768 PCIOCGETCONF to be broken again in order to be able to 1769 provide backwards compatibility to the old version of that 1770 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1771 again. As for prominent ports this affects neither pciutils 1772 nor xorg-server this time, the hal port needs to be rebuilt 1773 however. 1774 177520071020: 1776 The misnamed kthread_create() and friends have been renamed 1777 to kproc_create() etc. Many of the callers already 1778 used kproc_start().. 1779 I will return kthread_create() and friends in a while 1780 with implementations that actually create threads, not procs. 1781 Renaming corresponds with version 800002. 1782 178320071010: 1784 RELENG_7 branched. 1785 1786COMMON ITEMS: 1787 1788 General Notes 1789 ------------- 1790 Avoid using make -j when upgrading. While generally safe, there are 1791 sometimes problems using -j to upgrade. If your upgrade fails with 1792 -j, please try again without -j. From time to time in the past there 1793 have been problems using -j with buildworld and/or installworld. This 1794 is especially true when upgrading between "distant" versions (eg one 1795 that cross a major release boundary or several minor releases, or when 1796 several months have passed on the -current branch). 1797 1798 Sometimes, obscure build problems are the result of environment 1799 poisoning. This can happen because the make utility reads its 1800 environment when searching for values for global variables. To run 1801 your build attempts in an "environmental clean room", prefix all make 1802 commands with 'env -i '. See the env(1) manual page for more details. 1803 1804 When upgrading from one major version to another it is generally best 1805 to upgrade to the latest code in the currently installed branch first, 1806 then do an upgrade to the new branch. This is the best-tested upgrade 1807 path, and has the highest probability of being successful. Please try 1808 this approach before reporting problems with a major version upgrade. 1809 1810 When upgrading a live system, having a root shell around before 1811 installing anything can help undo problems. Not having a root shell 1812 around can lead to problems if pam has changed too much from your 1813 starting point to allow continued authentication after the upgrade. 1814 1815 ZFS notes 1816 --------- 1817 When upgrading the boot ZFS pool to a new version, always follow 1818 these two steps: 1819 1820 1.) recompile and reinstall the ZFS boot loader and boot block 1821 (this is part of "make buildworld" and "make installworld") 1822 1823 2.) update the ZFS boot block on your boot drive 1824 1825 The following example updates the ZFS boot block on the first 1826 partition (freebsd-boot) of a GPT partitioned drive ad0: 1827 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1828 1829 Non-boot pools do not need these updates. 1830 1831 To build a kernel 1832 ----------------- 1833 If you are updating from a prior version of FreeBSD (even one just 1834 a few days old), you should follow this procedure. It is the most 1835 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1836 1837 make kernel-toolchain 1838 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1839 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1840 1841 To test a kernel once 1842 --------------------- 1843 If you just want to boot a kernel once (because you are not sure 1844 if it works, or if you want to boot a known bad kernel to provide 1845 debugging information) run 1846 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1847 nextboot -k testkernel 1848 1849 To just build a kernel when you know that it won't mess you up 1850 -------------------------------------------------------------- 1851 This assumes you are already running a CURRENT system. Replace 1852 ${arch} with the architecture of your machine (e.g. "i386", 1853 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1854 1855 cd src/sys/${arch}/conf 1856 config KERNEL_NAME_HERE 1857 cd ../compile/KERNEL_NAME_HERE 1858 make depend 1859 make 1860 make install 1861 1862 If this fails, go to the "To build a kernel" section. 1863 1864 To rebuild everything and install it on the current system. 1865 ----------------------------------------------------------- 1866 # Note: sometimes if you are running current you gotta do more than 1867 # is listed here if you are upgrading from a really old current. 1868 1869 <make sure you have good level 0 dumps> 1870 make buildworld 1871 make kernel KERNCONF=YOUR_KERNEL_HERE 1872 [1] 1873 <reboot in single user> [3] 1874 mergemaster -p [5] 1875 make installworld 1876 mergemaster -i [4] 1877 make delete-old [6] 1878 <reboot> 1879 1880 To cross-install current onto a separate partition 1881 -------------------------------------------------- 1882 # In this approach we use a separate partition to hold 1883 # current's root, 'usr', and 'var' directories. A partition 1884 # holding "/", "/usr" and "/var" should be about 2GB in 1885 # size. 1886 1887 <make sure you have good level 0 dumps> 1888 <boot into -stable> 1889 make buildworld 1890 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1891 <maybe newfs current's root partition> 1892 <mount current's root partition on directory ${CURRENT_ROOT}> 1893 make installworld DESTDIR=${CURRENT_ROOT} 1894 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1895 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1896 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1897 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1898 <reboot into current> 1899 <do a "native" rebuild/install as described in the previous section> 1900 <maybe install compatibility libraries from ports/misc/compat*> 1901 <reboot> 1902 1903 1904 To upgrade in-place from stable to current 1905 ---------------------------------------------- 1906 <make sure you have good level 0 dumps> 1907 make buildworld [9] 1908 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1909 [1] 1910 <reboot in single user> [3] 1911 mergemaster -p [5] 1912 make installworld 1913 mergemaster -i [4] 1914 make delete-old [6] 1915 <reboot> 1916 1917 Make sure that you've read the UPDATING file to understand the 1918 tweaks to various things you need. At this point in the life 1919 cycle of current, things change often and you are on your own 1920 to cope. The defaults can also change, so please read ALL of 1921 the UPDATING entries. 1922 1923 Also, if you are tracking -current, you must be subscribed to 1924 freebsd-current@freebsd.org. Make sure that before you update 1925 your sources that you have read and understood all the recent 1926 messages there. If in doubt, please track -stable which has 1927 much fewer pitfalls. 1928 1929 [1] If you have third party modules, such as vmware, you 1930 should disable them at this point so they don't crash your 1931 system on reboot. 1932 1933 [3] From the bootblocks, boot -s, and then do 1934 fsck -p 1935 mount -u / 1936 mount -a 1937 cd src 1938 adjkerntz -i # if CMOS is wall time 1939 Also, when doing a major release upgrade, it is required that 1940 you boot into single user mode to do the installworld. 1941 1942 [4] Note: This step is non-optional. Failure to do this step 1943 can result in a significant reduction in the functionality of the 1944 system. Attempting to do it by hand is not recommended and those 1945 that pursue this avenue should read this file carefully, as well 1946 as the archives of freebsd-current and freebsd-hackers mailing lists 1947 for potential gotchas. The -U option is also useful to consider. 1948 See mergemaster(8) for more information. 1949 1950 [5] Usually this step is a noop. However, from time to time 1951 you may need to do this if you get unknown user in the following 1952 step. It never hurts to do it all the time. You may need to 1953 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1954 install) after the buildworld before this step if you last updated 1955 from current before 20130425 or from -stable before 20130430. 1956 1957 [6] This only deletes old files and directories. Old libraries 1958 can be deleted by "make delete-old-libs", but you have to make 1959 sure that no program is using those libraries anymore. 1960 1961 [8] In order to have a kernel that can run the 4.x binaries needed to 1962 do an installworld, you must include the COMPAT_FREEBSD4 option in 1963 your kernel. Failure to do so may leave you with a system that is 1964 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1965 required to run the 5.x binaries on more recent kernels. And so on 1966 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1967 1968 Make sure that you merge any new devices from GENERIC since the 1969 last time you updated your kernel config file. 1970 1971 [9] When checking out sources, you must include the -P flag to have 1972 cvs prune empty directories. 1973 1974 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1975 "?=" instead of the "=" assignment operator, so that buildworld can 1976 override the CPUTYPE if it needs to. 1977 1978 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1979 not on the command line, or in /etc/make.conf. buildworld will 1980 warn if it is improperly defined. 1981FORMAT: 1982 1983This file contains a list, in reverse chronological order, of major 1984breakages in tracking -current. It is not guaranteed to be a complete 1985list of such breakages, and only contains entries since October 10, 2007. 1986If you need to see UPDATING entries from before that date, you will need 1987to fetch an UPDATING file from an older FreeBSD release. 1988 1989Copyright information: 1990 1991Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1992 1993Redistribution, publication, translation and use, with or without 1994modification, in full or in part, in any form or format of this 1995document are permitted without further permission from the author. 1996 1997THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1998IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1999WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2000DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2001INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2002(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2003SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2004HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2005STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2006IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2007POSSIBILITY OF SUCH DAMAGE. 2008 2009Contact Warner Losh if you have any questions about your use of 2010this document. 2011 2012$FreeBSD: stable/10/UPDATING 256283 2013-10-10 17:59:44Z gjb $ 2013