UPDATING revision 255348
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 16head, and then rebuild without this option. The bootstrap process from 17older version of current is a bit fragile. 18 19NOTE TO PEOPLE WHO THINK THAT FreeBSD 10.x IS SLOW: 20 FreeBSD 10.x has many debugging features turned on, in both the kernel 21 and userland. These features attempt to detect incorrect use of 22 system primitives, and encourage loud failure through extra sanity 23 checking and fail stop semantics. They also substantially impact 24 system performance. If you want to do performance measurement, 25 benchmarking, and optimization, you'll want to turn them off. This 26 includes various WITNESS- related kernel options, INVARIANTS, malloc 27 debugging flags in userland, and various verbose features in the 28 kernel. Many developers choose to disable these features on build 29 machines to maximize performance. (To completely disable malloc 30 debugging, define MALLOC_PRODUCTION in /etc/make.conf, or to merely 31 disable the most expensive debugging functionality run 32 "ln -s 'abort:false,junk:false' /etc/malloc.conf".) 33 3420130906: 35 The GNU Compiler Collection and C++ standard library (libstdc++) 36 are no longer built by default on platforms where clang is the system 37 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 38 options in src.conf. 39 4020130905: 41 The PROCDESC kernel option is now part of the GENERIC kernel 42 configuration and is required for the rwhod(8) to work. 43 If you are using custom kernel configuration, you should include 44 'options PROCDESC'. 45 4620130905: 47 The API and ABI related to the Capsicum framework was modified 48 in backward incompatible way. The userland libraries and programs 49 have to be recompiled to work with the new kernel. This includes the 50 following libraries and programs, but the whole buildworld is 51 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 52 kdump, procstat, rwho, rwhod, uniq. 53 5420130827: 55 Thomas Dickey (vendor author thereof) reports that dialog(1) since 56 2011/10/18 has a bug in handling --hline. Testers and I noticed the 57 --hline is not ignored but displayed as a NULL string, regardless of 58 value. This will cause confusion in some bsdconfig dialogs where the 59 --hline is used to inform users which keybindings to use. This will 60 likewise affect any other persons relying on --hline. It also looks 61 rather strange seeing "[]" at the bottom of dialog(1) widgets when 62 passing --hline "anything". Thomas said he will have a look in a few 63 weeks. NOTE: The "[]" brackets appear with the left-edge where it 64 would normally appear given the width of text to display, but the 65 displayed text is not there (part of the bug). 66 6720130821: 68 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 69 Thus "device padlock_rng" and "device rdrand_rng" should be 70 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 71 7220130813: 73 WITH_ICONV has been split into two feature sets. WITH_ICONV now 74 enables just the iconv* functionality and is now on by default. 75 WITH_LIBICONV_COMPAT enables the libiconv api and link time 76 compatability. Set WITHOUT_ICONV to build the old way. 77 If you have been using WITH_ICONV before, you will very likely 78 need to turn on WITH_LIBICONV_COMPAT. 79 8020130806: 81 INVARIANTS option now enables DEBUG for code with OpenSolaris and 82 Illumos origin, including ZFS. If you have INVARIANTS in your 83 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 84 explicitly. 85 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 86 locks if WITNESS option was set. Because that generated a lot of 87 witness(9) reports and all of them were believed to be false 88 positives, this is no longer done. New option OPENSOLARIS_WITNESS 89 can be used to achieve the previous behavior. 90 9120130806: 92 Timer values in IPv6 data structures now use time_uptime instead 93 of time_second. Although this is not a user-visible functional 94 change, userland utilities which directly use them---ndp(8), 95 rtadvd(8), and rtsold(8) in the base system---need to be updated 96 to r253970 or later. 97 9820130802: 99 find -delete can now delete the pathnames given as arguments, 100 instead of only files found below them or if the pathname did 101 not contain any slashes. Formerly, the following error message 102 would result: 103 104 find: -delete: <path>: relative path potentially not safe 105 106 Deleting the pathnames given as arguments can be prevented 107 without error messages using -mindepth 1 or by changing 108 directory and passing "." as argument to find. This works in the 109 old as well as the new version of find. 110 11120130726: 112 Behavior of devfs rules path matching has been changed. 113 Pattern is now always matched against fully qualified devfs 114 path and slash characters must be explicitly matched by 115 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 116 subdirectories must be reviewed. 117 11820130716: 119 The default ARM ABI has changed to the ARM EABI. The old ABI is 120 incompatible with the ARM EABI and all programs and modules will 121 need to be rebuilt to work with a new kernel. 122 123 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 124 125 NOTE: Support for the old ABI will be removed in the future and 126 users are advised to upgrade. 127 12820130709: 129 pkg_install has been disconnected from the build if you really need it 130 you should add WITH_PKGTOOLS in your src.conf(5). 131 13220130709: 133 Most of network statistics structures were changed to be able 134 keep 64-bits counters. Thus all tools, that work with networking 135 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 136 13720130629: 138 Fix targets that run multiple make's to use && rather than ; 139 so that subsequent steps depend on success of previous. 140 141 NOTE: if building 'universe' with -j* on stable/8 or stable/9 142 it would be better to start the build using bmake, to avoid 143 overloading the machine. 144 14520130618: 146 Fix a bug that allowed a tracing process (e.g. gdb) to write 147 to a memory-mapped file in the traced process's address space 148 even if neither the traced process nor the tracing process had 149 write access to that file. 150 15120130615: 152 CVS has been removed from the base system. An exact copy 153 of the code is available from the devel/cvs port. 154 15520130613: 156 Some people report the following error after the switch to bmake: 157 158 make: illegal option -- J 159 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 160 ... 161 *** [buildworld] Error code 2 162 163 this likely due to an old instance of make in 164 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 165 which src/Makefile will use that blindly, if it exists, so if 166 you see the above error: 167 168 rm -rf `make -V MAKEPATH` 169 170 should resolve it. 171 17220130516: 173 Use bmake by default. 174 Whereas before one could choose to build with bmake via 175 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 176 make. The goal is to remove these knobs for 10-RELEASE. 177 178 It is worth noting that bmake (like gmake) treats the command 179 line as the unit of failure, rather than statements within the 180 command line. Thus '(cd some/where && dosomething)' is safer 181 than 'cd some/where; dosomething'. The '()' allows consistent 182 behavior in parallel build. 183 18420130429: 185 Fix a bug that allows NFS clients to issue READDIR on files. 186 18720130426: 188 The WITHOUT_IDEA option has been removed because 189 the IDEA patent expired. 190 19120130426: 192 The sysctl which controls TRIM support under ZFS has been renamed 193 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 194 enabled by default. 195 19620130425: 197 The mergemaster command now uses the default MAKEOBJDIRPREFIX 198 rather than creating it's own in the temporary directory in 199 order allow access to bootstrapped versions of tools such as 200 install and mtree. When upgrading from version of FreeBSD where 201 the install command does not support -l, you will need to 202 install a new mergemaster command if mergemaster -p is required. 203 This can be accomplished with the command (cd src/usr.sbin/mergemaster 204 && make install). 205 20620130404: 207 Legacy ATA stack, disabled and replaced by new CAM-based one since 208 FreeBSD 9.0, completely removed from the sources. Kernel modules 209 atadisk and atapi*, user-level tools atacontrol and burncd are 210 removed. Kernel option `options ATA_CAM` is now permanently enabled 211 and removed. 212 21320130319: 214 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 215 and socketpair(2). Software, in particular Kerberos, may 216 automatically detect and use these during building. The resulting 217 binaries will not work on older kernels. 218 21920130308: 220 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 221 information, see the respective 20130304 entry). 222 22320130304: 224 Recent commits to callout(9) changed the size of struct callout, 225 so the KBI is probably heavily disturbed. Also, some functions 226 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 227 by macros. Every kernel module using it won't load, so rebuild 228 is requested. 229 230 The ctl device has been re-enabled in GENERIC for i386 and amd64, 231 but does not initialize by default (because of the new CTL_DISABLE 232 option) to save memory. To re-enable it, remove the CTL_DISABLE 233 option from the kernel config file or set kern.cam.ctl.disable=0 234 in /boot/loader.conf. 235 23620130301: 237 The ctl device has been disabled in GENERIC for i386 and amd64. 238 This was done due to the extra memory being allocated at system 239 initialisation time by the ctl driver which was only used if 240 a CAM target device was created. This makes a FreeBSD system 241 unusable on 128MB or less of RAM. 242 24320130208: 244 A new compression method (lz4) has been merged to -HEAD. Please 245 refer to zpool-features(7) for more information. 246 247 Please refer to the "ZFS notes" section of this file for information 248 on upgrading boot ZFS pools. 249 25020130129: 251 A BSD-licensed patch(1) variant has been added and is installed 252 as bsdpatch, being the GNU version the default patch. 253 To inverse the logic and use the BSD-licensed one as default, 254 while having the GNU version installed as gnupatch, rebuild 255 and install world with the WITH_BSD_PATCH knob set. 256 25720130121: 258 Due to the use of the new -l option to install(1) during build 259 and install, you must take care not to directly set the INSTALL 260 make variable in your /etc/make.conf, /etc/src.conf, or on the 261 command line. If you wish to use the -C flag for all installs 262 you may be able to add INSTALL+=-C to /etc/make.conf or 263 /etc/src.conf. 264 26520130118: 266 The install(1) option -M has changed meaning and now takes an 267 argument that is a file or path to append logs to. In the 268 unlikely event that -M was the last option on the command line 269 and the command line contained at least two files and a target 270 directory the first file will have logs appended to it. The -M 271 option served little practical purpose in the last decade so its 272 use is expected to be extremely rare. 273 27420121223: 275 After switching to Clang as the default compiler some users of ZFS 276 on i386 systems started to experience stack overflow kernel panics. 277 Please consider using 'options KSTACK_PAGES=4' in such configurations. 278 27920121222: 280 GEOM_LABEL now mangles label names read from file system metadata. 281 Mangling affect labels containing spaces, non-printable characters, 282 '%' or '"'. Device names in /etc/fstab and other places may need to 283 be updated. 284 28520121217: 286 By default, only the 10 most recent kernel dumps will be saved. To 287 restore the previous behaviour (no limit on the number of kernel dumps 288 stored in the dump directory) add the following line to /etc/rc.conf: 289 290 savecore_flags="" 291 29220121201: 293 With the addition of auditdistd(8), a new auditdistd user is now 294 depended on during installworld. "mergemaster -p" can be used to add 295 the user prior to installworld, as documented in the handbook. 296 29720121117: 298 The sin6_scope_id member variable in struct sockaddr_in6 is now 299 filled by the kernel before passing the structure to the userland via 300 sysctl or routing socket. This means the KAME-specific embedded scope 301 id in sin6_addr.s6_addr[2] is always cleared in userland application. 302 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 303 __FreeBSD_version is bumped to 1000025. 304 30520121105: 306 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 307 This means that the world and kernel will be compiled with clang 308 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 309 and /usr/bin/cpp. To disable this behavior and revert to building 310 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 311 of current may need to bootstrap WITHOUT_CLANG first if the clang 312 build fails (its compatibility window doesn't extend to the 9 stable 313 branch point). 314 31520121102: 316 The IPFIREWALL_FORWARD kernel option has been removed. Its 317 functionality now turned on by default. 318 31920121023: 320 The ZERO_COPY_SOCKET kernel option has been removed and 321 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 322 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 323 mechanism which is not safe and may result in kernel crashes. 324 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 325 driver supports disposeable external page sized mbuf storage. 326 Proper replacements for both zero-copy mechanisms are under 327 consideration and will eventually lead to complete removal 328 of the two kernel options. 329 33020121023: 331 The IPv4 network stack has been converted to network byte 332 order. The following modules need to be recompiled together 333 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 334 pf(4), ipfw(4), ng_ipfw(4), stf(4). 335 33620121022: 337 Support for non-MPSAFE filesystems was removed from VFS. The 338 VFS_VERSION was bumped, all filesystem modules shall be 339 recompiled. 340 34120121018: 342 All the non-MPSAFE filesystems have been disconnected from 343 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 344 portalfs, smbfs, xfs. 345 34620121016: 347 The interface cloning API and ABI has changed. The following 348 modules need to be recompiled together with kernel: 349 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 350 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 351 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 352 35320121015: 354 The sdhci driver was split in two parts: sdhci (generic SD Host 355 Controller logic) and sdhci_pci (actual hardware driver). 356 No kernel config modifications are required, but if you 357 load sdhc as a module you must switch to sdhci_pci instead. 358 35920121014: 360 Import the FUSE kernel and userland support into base system. 361 36220121013: 363 The GNU sort(1) program has been removed since the BSD-licensed 364 sort(1) has been the default for quite some time and no serious 365 problems have been reported. The corresponding WITH_GNU_SORT 366 knob has also gone. 367 36820121006: 369 The pfil(9) API/ABI for AF_INET family has been changed. Packet 370 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 371 with new kernel. 372 37320121001: 374 The net80211(4) ABI has been changed to allow for improved driver 375 PS-POLL and power-save support. All wireless drivers need to be 376 recompiled to work with the new kernel. 377 37820120913: 379 The random(4) support for the VIA hardware random number 380 generator (`PADLOCK') is no longer enabled unconditionally. 381 Add the padlock_rng device in the custom kernel config if 382 needed. The GENERIC kernels on i386 and amd64 do include the 383 device, so the change only affects the custom kernel 384 configurations. 385 38620120908: 387 The pf(4) packet filter ABI has been changed. pfctl(8) and 388 snmp_pf module need to be recompiled to work with new kernel. 389 39020120828: 391 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 392 to -HEAD. Pools that have empty_bpobj in active state can not be 393 imported read-write with ZFS implementations that do not support 394 this feature. For more information read the zpool-features(5) 395 manual page. 396 39720120727: 398 The sparc64 ZFS loader has been changed to no longer try to auto- 399 detect ZFS providers based on diskN aliases but now requires these 400 to be explicitly listed in the OFW boot-device environment variable. 401 40220120712: 403 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 404 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 405 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 406 40720120712: 408 The following sysctls and tunables have been renamed for consistency 409 with other variables: 410 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 411 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 412 41320120628: 414 The sort utility has been replaced with BSD sort. For now, GNU sort 415 is also available as "gnusort" or the default can be set back to 416 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 417 installed as "bsdsort". 418 41920120611: 420 A new version of ZFS (pool version 5000) has been merged to -HEAD. 421 Starting with this version the old system of ZFS pool versioning 422 is superseded by "feature flags". This concept enables forward 423 compatibility against certain future changes in functionality of ZFS 424 pools. The first read-only compatible "feature flag" for ZFS pools 425 is named "com.delphix:async_destroy". For more information 426 read the new zpool-features(5) manual page. 427 Please refer to the "ZFS notes" section of this file for information 428 on upgrading boot ZFS pools. 429 43020120417: 431 The malloc(3) implementation embedded in libc now uses sources imported 432 as contrib/jemalloc. The most disruptive API change is to 433 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 434 delete it prior to installworld, and optionally re-create it using the 435 new format after rebooting. See malloc.conf(5) for details 436 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 437 NAMESPACE section). 438 43920120328: 440 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 441 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 442 now spelled mips. This is to aid compatibility with third-party 443 software that expects this naming scheme in uname(3). Little-endian 444 settings are unchanged. If you are updating a big-endian mips64 machine 445 from before this change, you may need to set MACHINE_ARCH=mips64 in 446 your environment before the new build system will recognize your machine. 447 44820120306: 449 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 450 platforms. 451 45220120229: 453 Now unix domain sockets behave "as expected" on nullfs(5). Previously 454 nullfs(5) did not pass through all behaviours to the underlying layer, 455 as a result if we bound to a socket on the lower layer we could connect 456 only to the lower path; if we bound to the upper layer we could connect 457 only to the upper path. The new behavior is one can connect to both the 458 lower and the upper paths regardless what layer path one binds to. 459 46020120211: 461 The getifaddrs upgrade path broken with 20111215 has been restored. 462 If you have upgraded in between 20111215 and 20120209 you need to 463 recompile libc again with your kernel. You still need to recompile 464 world to be able to configure CARP but this restriction already 465 comes from 20111215. 466 46720120114: 468 The set_rcvar() function has been removed from /etc/rc.subr. All 469 base and ports rc.d scripts have been updated, so if you have a 470 port installed with a script in /usr/local/etc/rc.d you can either 471 hand-edit the rcvar= line, or reinstall the port. 472 473 An easy way to handle the mass-update of /etc/rc.d: 474 rm /etc/rc.d/* && mergemaster -i 475 47620120109: 477 panic(9) now stops other CPUs in the SMP systems, disables interrupts 478 on the current CPU and prevents other threads from running. 479 This behavior can be reverted using the kern.stop_scheduler_on_panic 480 tunable/sysctl. 481 The new behavior can be incompatible with kern.sync_on_panic. 482 48320111215: 484 The carp(4) facility has been changed significantly. Configuration 485 of the CARP protocol via ifconfig(8) has changed, as well as format 486 of CARP events submitted to devd(8) has changed. See manual pages 487 for more information. The arpbalance feature of carp(4) is currently 488 not supported anymore. 489 490 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 491 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 492 need to be recompiled. 493 49420111122: 495 The acpi_wmi(4) status device /dev/wmistat has been renamed to 496 /dev/wmistat0. 497 49820111108: 499 The option VFS_ALLOW_NONMPSAFE option has been added in order to 500 explicitely support non-MPSAFE filesystems. 501 It is on by default for all supported platform at this present 502 time. 503 50420111101: 505 The broken amd(4) driver has been replaced with esp(4) in the amd64, 506 i386 and pc98 GENERIC kernel configuration files. 507 50820110930: 509 sysinstall has been removed 510 51120110923: 512 The stable/9 branch created in subversion. This corresponds to the 513 RELENG_9 branch in CVS. 514 51520110913: 516 This commit modifies vfs_register() so that it uses a hash 517 calculation to set vfc_typenum, which is enabled by default. 518 The first time a system is booted after this change, the 519 vfc_typenum values will change for all file systems. The 520 main effect of this is a change to the NFS server file handles 521 for file systems that use vfc_typenum in their fsid, such as ZFS. 522 It will, however, prevent vfc_typenum from changing when file 523 systems are loaded in a different order for subsequent reboots. 524 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 525 until you are ready to remount all NFS clients after a reboot. 526 52720110828: 528 Bump the shared library version numbers for libraries that 529 do not use symbol versioning, have changed the ABI compared 530 to stable/8 and which shared library version was not bumped. 531 Done as part of 9.0-RELEASE cycle. 532 53320110815: 534 During the merge of Capsicum features, the fget(9) KPI was modified. 535 This may require the rebuilding of out-of-tree device drivers -- 536 issues have been reported specifically with the nVidia device driver. 537 __FreeBSD_version is bumped to 900041. 538 539 Also, there is a period between 20110811 and 20110814 where the 540 special devices /dev/{stdin,stdout,stderr} did not work correctly. 541 Building world from a kernel during that window may not work. 542 54320110628: 544 The packet filter (pf) code has been updated to OpenBSD 4.5. 545 You need to update userland tools to be in sync with kernel. 546 This update breaks backward compatibility with earlier pfsync(4) 547 versions. Care must be taken when updating redundant firewall setups. 548 54920110608: 550 The following sysctls and tunables are retired on x86 platforms: 551 machdep.hlt_cpus 552 machdep.hlt_logical_cpus 553 The following sysctl is retired: 554 machdep.hyperthreading_allowed 555 The sysctls were supposed to provide a way to dynamically offline and 556 online selected CPUs on x86 platforms, but the implementation has not 557 been reliable especially with SCHED_ULE scheduler. 558 machdep.hyperthreading_allowed tunable is still available to ignore 559 hyperthreading CPUs at OS level. 560 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 561 where X is an APIC ID of a CPU. Be advised, though, that disabling 562 CPUs in non-uniform fashion will result in non-uniform topology and 563 may lead to sub-optimal system performance with SCHED_ULE, which is 564 a default scheduler. 565 56620110607: 567 cpumask_t type is retired and cpuset_t is used in order to describe 568 a mask of CPUs. 569 57020110531: 571 Changes to ifconfig(8) for dynamic address family detection mandate 572 that you are running a kernel of 20110525 or later. Make sure to 573 follow the update procedure to boot a new kernel before installing 574 world. 575 57620110513: 577 Support for sun4v architecture is officially dropped 578 57920110503: 580 Several KPI breaking changes have been committed to the mii(4) layer, 581 the PHY drivers and consequently some Ethernet drivers using mii(4). 582 This means that miibus.ko and the modules of the affected Ethernet 583 drivers need to be recompiled. 584 585 Note to kernel developers: Given that the OUI bit reversion problem 586 was fixed as part of these changes all mii(4) commits related to OUIs, 587 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 588 handling, no longer can be merged verbatim to stable/8 and previous 589 branches. 590 59120110430: 592 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 593 into their kernel configurations along with 'device pci'. 594 59520110427: 596 The default NFS client is now the new NFS client, so fstype "newnfs" 597 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 598 Although mounts via fstype "nfs" will usually work without userland 599 changes, it is recommended that the mount(8) and mount_nfs(8) 600 commands be rebuilt from sources and that a link to mount_nfs called 601 mount_oldnfs be created. The new client is compiled into the 602 kernel with "options NFSCL" and this is needed for diskless root 603 file systems. The GENERIC kernel configs have been changed to use 604 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 605 To use the regular/old client, you can "mount -t oldnfs ...". For 606 a diskless root file system, you must also include a line like: 607 608 vfs.root.mountfrom="oldnfs:" 609 610 in the boot/loader.conf on the root fs on the NFS server to make 611 a diskless root fs use the old client. 612 61320110424: 614 The GENERIC kernels for all architectures now default to the new 615 CAM-based ATA stack. It means that all legacy ATA drivers were 616 removed and replaced by respective CAM drivers. If you are using 617 ATA device names in /etc/fstab or other places, make sure to update 618 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 619 where 'Y's are the sequential numbers starting from zero for each type 620 in order of detection, unless configured otherwise with tunables, 621 see cam(4)). There will be symbolic links created in /dev/ to map 622 old adX devices to the respective adaY. They should provide basic 623 compatibility for file systems mounting in most cases, but they do 624 not support old user-level APIs and do not have respective providers 625 in GEOM. Consider using updated management tools with new device names. 626 627 It is possible to load devices ahci, ata, siis and mvs as modules, 628 but option ATA_CAM should remain in kernel configuration to make ata 629 module work as CAM driver supporting legacy ATA controllers. Device ata 630 still can be used in modular fashion (atacore + ...). Modules atadisk 631 and atapi* are not used and won't affect operation in ATA_CAM mode. 632 Note that to use CAM-based ATA kernel should include CAM devices 633 scbus, pass, da (or explicitly ada), cd and optionally others. All of 634 them are parts of the cam module. 635 636 ataraid(4) functionality is now supported by the RAID GEOM class. 637 To use it you can load geom_raid kernel module and use graid(8) tool 638 for management. Instead of /dev/arX device names, use /dev/raid/rX. 639 640 No kernel config options or code have been removed, so if a problem 641 arises, please report it and optionally revert to the old ATA stack. 642 In order to do it you can remove from the kernel config: 643 options ATA_CAM 644 device ahci 645 device mvs 646 device siis 647 , and instead add back: 648 device atadisk # ATA disk drives 649 device ataraid # ATA RAID drives 650 device atapicd # ATAPI CDROM drives 651 device atapifd # ATAPI floppy drives 652 device atapist # ATAPI tape drives 653 65420110423: 655 The default NFS server has been changed to the new server, which 656 was referred to as the experimental server. If you need to switch 657 back to the old NFS server, you must now put the "-o" option on 658 both the mountd and nfsd commands. This can be done using the 659 mountd_flags and nfs_server_flags rc.conf variables until an 660 update to the rc scripts is committed, which is coming soon. 661 66220110418: 663 The GNU Objective-C runtime library (libobjc), and other Objective-C 664 related components have been removed from the base system. If you 665 require an Objective-C library, please use one of the available ports. 666 66720110331: 668 ath(4) has been split into bus- and device- modules. if_ath contains 669 the HAL, the TX rate control and the network device code. if_ath_pci 670 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 671 contains the AHB glue. Users need to load both if_ath_pci and if_ath 672 in order to use ath on everything else. 673 674 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 675 need to load if_ath and if_ath_pci for ath(4) operation. 676 67720110314: 678 As part of the replacement of sysinstall, the process of building 679 release media has changed significantly. For details, please re-read 680 release(7), which has been updated to reflect the new build process. 681 68220110218: 683 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 684 is the last available version under GPLv2. It brings a number of new 685 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 686 4.1 and SSE 4.2), better support for powerpc64, a number of new 687 directives, and lots of other small improvements. See the ChangeLog 688 file in contrib/binutils for the full details. 689 69020110218: 691 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 692 compliant, and will now use half of hash for authentication. 693 This will break interoperability with all stacks (including all 694 actual FreeBSD versions) who implement 695 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 696 authentication). 697 The only workaround with such peers is to use another HMAC 698 algorithm for IPsec ("phase 2") authentication. 699 70020110207: 701 Remove the uio_yield prototype and symbol. This function has 702 been misnamed since it was introduced and should not be 703 globally exposed with this name. The equivalent functionality 704 is now available using kern_yield(curthread->td_user_pri). 705 The function remains undocumented. 706 70720110112: 708 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 709 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 710 for scalar sysctls is defined but disabled. Code that needs 711 UQUAD to pass the type checking that must compile on older 712 systems where the define is not present can check against 713 __FreeBSD_version >= 900030. 714 715 The system dialog(1) has been replaced with a new version previously 716 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 717 with the previous version, but the libdialog associated with it has 718 a largely incompatible API. As such, the original version of libdialog 719 will be kept temporarily as libodialog, until its base system consumers 720 are replaced or updated. Bump __FreeBSD_version to 900030. 721 72220110103: 723 If you are trying to run make universe on a -stable system, and you get 724 the following warning: 725 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 726 unknown. config(8) likely too old." 727 or something similar to it, then you must upgrade your -stable system 728 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 729 stable/8) or build the config from the latest stable/8 branch and 730 install it on your system. 731 732 Prior to this date, building a current universe on 8-stable system from 733 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 734 error in the first kernel build phase. A new config on those old 735 systems will fix that problem for older versions of -current. 736 73720101228: 738 The TCP stack has been modified to allow Khelp modules to interact with 739 it via helper hook points and store per-connection data in the TCP 740 control block. Bump __FreeBSD_version to 900029. User space tools that 741 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 742 be recompiled. 743 74420101114: 745 Generic IEEE 802.3 annex 31B full duplex flow control support has been 746 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 747 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 748 to take advantage of it instead of using custom implementations. This 749 means that these drivers now no longer unconditionally advertise 750 support for flow control but only do so if flow control is a selected 751 media option. This was implemented in the generic support that way in 752 order to allow flow control to be switched on and off via ifconfig(8) 753 with the PHY specific default to typically off in order to protect 754 from unwanted effects. Consequently, if you used flow control with 755 one of the above mentioned drivers you now need to explicitly enable 756 it, for example via: 757 ifconfig bge0 media auto mediaopt flowcontrol 758 759 Along with the above mentioned changes generic support for setting 760 1000baseT master mode also has been added and brgphy(4), ciphy(4), 761 e1000phy(4) as well as ip1000phy(4) have been converted to take 762 advantage of it. This means that these drivers now no longer take the 763 link0 parameter for selecting master mode but the master media option 764 has to be used instead, for example like in the following: 765 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 766 767 Selection of master mode now is also available with all other PHY 768 drivers supporting 1000baseT. 769 77020101111: 771 The TCP stack has received a significant update to add support for 772 modularised congestion control and generally improve the clarity of 773 congestion control decisions. Bump __FreeBSD_version to 900025. User 774 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 775 sockstat) need to be recompiled. 776 77720101002: 778 The man(1) utility has been replaced by a new version that no longer 779 uses /etc/manpath.config. Please consult man.conf(5) for how to 780 migrate local entries to the new format. 781 78220100928: 783 The copyright strings printed by login(1) and sshd(8) at the time of a 784 new connection have been removed to follow other operating systems and 785 upstream sshd. 786 78720100915: 788 A workaround for a fixed ld bug has been removed in kernel code, 789 so make sure that your system ld is built from sources after 790 revision 210245 from 2010-07-19 (r211583 if building head kernel 791 on stable/8, r211584 for stable/7; both from 2010-08-21). 792 A symptom of incorrect ld version is different addresses for 793 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 794 79520100913: 796 The $ipv6_prefer variable in rc.conf(5) has been split into 797 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 798 799 The $ip6addrctl_policy is a variable to choose a pre-defined 800 address selection policy set by ip6addrctl(8). A value 801 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 802 default is "AUTO". 803 804 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 805 flag (see an entry of 20090926) is set on an interface with no 806 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 807 security reason. If you want IPv6 link-local address on all 808 interfaces by default, set this to "YES". 809 810 The old ipv6_prefer="YES" is equivalent to 811 ipv6_activate_all_interfaces="YES" and 812 ip6addrctl_policy="ipv6_prefer". 813 81420100913: 815 DTrace has grown support for userland tracing. Due to this, DTrace is 816 now i386 and amd64 only. 817 dtruss(1) is now installed by default on those systems and a new 818 kernel module is needed for userland tracing: fasttrap. 819 No changes to your kernel config file are necessary to enable 820 userland tracing, but you might consider adding 'STRIP=' and 821 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 822 to have informative userland stack traces in DTrace (ustack). 823 82420100725: 825 The acpi_aiboost(4) driver has been removed in favor of the new 826 aibs(4) driver. You should update your kernel configuration file. 827 82820100722: 829 BSD grep has been imported to the base system and it is built by 830 default. It is completely BSD licensed, highly GNU-compatible, uses 831 less memory than its GNU counterpart and has a small codebase. 832 However, it is slower than its GNU counterpart, which is mostly 833 noticeable for larger searches, for smaller ones it is measurable 834 but not significant. The reason is complex, the most important factor 835 is that we lack a modern and efficient regex library and GNU 836 overcomes this by optimizing the searches internally. Future work 837 on improving the regex performance is planned, for the meantime, 838 users that need better performance, can build GNU grep instead by 839 setting the WITH_GNU_GREP knob. 840 84120100713: 842 Due to the import of powerpc64 support, all existing powerpc kernel 843 configuration files must be updated with a machine directive like this: 844 machine powerpc powerpc 845 846 In addition, an updated config(8) is required to build powerpc kernels 847 after this change. 848 84920100713: 850 A new version of ZFS (version 15) has been merged to -HEAD. 851 This version uses a python library for the following subcommands: 852 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 853 For full functionality of these commands the following port must 854 be installed: sysutils/py-zfs 855 85620100429: 857 'vm_page's are now hashed by physical address to an array of mutexes. 858 Currently this is only used to serialize access to hold_count. Over 859 time the page queue mutex will be peeled away. This changes the size 860 of pmap on every architecture. And requires all callers of vm_page_hold 861 and vm_page_unhold to be updated. 862 86320100402: 864 WITH_CTF can now be specified in src.conf (not recommended, there 865 are some problems with static executables), make.conf (would also 866 affect ports which do not use GNU make and do not override the 867 compile targets) or in the kernel config (via "makeoptions 868 WITH_CTF=yes"). 869 When WITH_CTF was specified there before this was silently ignored, 870 so make sure that WITH_CTF is not used in places which could lead 871 to unwanted behavior. 872 87320100311: 874 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 875 to allow 32-bit compatibility on non-x86 platforms. All kernel 876 configurations on amd64 and ia64 platforms using these options must 877 be modified accordingly. 878 87920100113: 880 The utmp user accounting database has been replaced with utmpx, 881 the user accounting interface standardized by POSIX. 882 Unfortunately the semantics of utmp and utmpx don't match, 883 making it practically impossible to support both interfaces. 884 The user accounting database is used by tools like finger(1), 885 last(1), talk(1), w(1) and ac(8). 886 887 All applications in the base system use utmpx. This means only 888 local binaries (e.g. from the ports tree) may still use these 889 utmp database files. These applications must be rebuilt to make 890 use of utmpx. 891 892 After the system has been upgraded, it is safe to remove the old 893 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 894 assuming their contents is of no importance anymore. Old wtmp 895 databases can only be used by last(1) and ac(8) after they have 896 been converted to the new format using wtmpcvt(1). 897 89820100108: 899 Introduce the kernel thread "deadlock resolver" (which can be enabled 900 via the DEADLKRES option, see NOTES for more details) and the 901 sleepq_type() function for sleepqueues. 902 90320091202: 904 The rc.firewall and rc.firewall6 were unified, and 905 rc.firewall6 and rc.d/ip6fw were removed. 906 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 907 variables are obsoleted. Instead, the following new rc 908 variables are added to rc.d/ipfw: 909 910 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 911 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 912 firewall_simple_onet_ipv6, firewall_trusted_ipv6 913 914 The meanings correspond to the relevant IPv4 variables. 915 91620091125: 917 8.0-RELEASE. 918 91920091113: 920 The default terminal emulation for syscons(4) has been changed 921 from cons25 to xterm on all platforms except pc98. This means 922 that the /etc/ttys file needs to be updated to ensure correct 923 operation of applications on the console. 924 925 The terminal emulation style can be toggled per window by using 926 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 927 options can be used to change the compile-time default back to 928 cons25. 929 930 To prevent graphical artifacts, make sure the TERM environment 931 variable is set to match the terminal emulation that is being 932 performed by syscons(4). 933 93420091109: 935 The layout of the structure ieee80211req_scan_result has changed. 936 Applications that require wireless scan results (e.g. ifconfig(8)) 937 from net80211 need to be recompiled. 938 939 Applications such as wpa_supplicant(8) may require a full world 940 build without using NO_CLEAN in order to get synchronized with the 941 new structure. 942 94320091025: 944 The iwn(4) driver has been updated to support the 5000 and 5150 series. 945 There's one kernel module for each firmware. Adding "device iwnfw" 946 to the kernel configuration file means including all three firmware 947 images inside the kernel. If you want to include just the one for 948 your wireless card, use the devices iwn4965fw, iwn5000fw or 949 iwn5150fw. 950 95120090926: 952 The rc.d/network_ipv6, IPv6 configuration script has been integrated 953 into rc.d/netif. The changes are the following: 954 955 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 956 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 957 Note that both variables need the "inet6" keyword at the head. 958 959 Do not set $ipv6_network_interfaces manually if you do not 960 understand what you are doing. It is not needed in most cases. 961 962 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 963 they are obsolete. 964 965 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 966 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 967 968 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 969 all configured interfaces have "inet6 accept_rtadv" in the 970 $ifconfig_IF_ipv6. These are for backward compatibility. 971 972 3. A new variable $ipv6_prefer has been added. If NO, IPv6 973 functionality of interfaces with no corresponding 974 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 975 and the default address selection policy of ip6addrctl(8) 976 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 977 Note that if you want to configure IPv6 functionality on the 978 disabled interfaces after boot, first you need to clear the flag by 979 using ifconfig(8) like: 980 981 ifconfig em0 inet6 -ifdisabled 982 983 If YES, the default address selection policy is set as 984 IPv6-preferred. 985 986 The default value of $ipv6_prefer is NO. 987 988 4. If your system need to receive Router Advertisement messages, 989 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 990 scripts automatically invoke rtsol(8) when the interface becomes 991 UP. The Router Advertisement messages are used for SLAAC 992 (State-Less Address AutoConfiguration). 993 99420090922: 995 802.11s D3.03 support was committed. This is incompatible with the 996 previous code, which was based on D3.0. 997 99820090912: 999 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1000 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1001 control whether accepting Router Advertisement messages or not. 1002 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1003 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1004 The ifconfig(8) utility now supports these flags. 1005 100620090910: 1007 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1008 mount(8) and -a option for df(1) to see them. 1009 101020090825: 1011 The old tunable hw.bus.devctl_disable has been superseded by 1012 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1013 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1014 is 1000. 1015 101620090813: 1017 Remove the option STOP_NMI. The default action is now to use NMI only 1018 for KDB via the newly introduced function stop_cpus_hard() and 1019 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1020 102120090803: 1022 The stable/8 branch created in subversion. This corresponds to the 1023 RELENG_8 branch in CVS. 1024 102520090719: 1026 Bump the shared library version numbers for all libraries that do not 1027 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1028 __FreeBSD_version to 800105. 1029 103020090714: 1031 Due to changes in the implementation of virtual network stack support, 1032 all network-related kernel modules must be recompiled. As this change 1033 breaks the ABI, bump __FreeBSD_version to 800104. 1034 103520090713: 1036 The TOE interface to the TCP syncache has been modified to remove 1037 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1038 The cxgb driver is the only TOE consumer affected by this change, and 1039 needs to be recompiled along with the kernel. As this change breaks 1040 the ABI, bump __FreeBSD_version to 800103. 1041 104220090712: 1043 Padding has been added to struct tcpcb, sackhint and tcpstat in 1044 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1045 maintaining the ABI. However, this change breaks the ABI, so bump 1046 __FreeBSD_version to 800102. User space tools that rely on the size of 1047 any of these structs (e.g. sockstat) need to be recompiled. 1048 104920090630: 1050 The NFS_LEGACYRPC option has been removed along with the old kernel 1051 RPC implementation that this option selected. Kernel configurations 1052 may need to be adjusted. 1053 105420090629: 1055 The network interface device nodes at /dev/net/<interface> have been 1056 removed. All ioctl operations can be performed the normal way using 1057 routing sockets. The kqueue functionality can generally be replaced 1058 with routing sockets. 1059 106020090628: 1061 The documentation from the FreeBSD Documentation Project (Handbook, 1062 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1063 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1064 106520090624: 1066 The ABI of various structures related to the SYSV IPC API have been 1067 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1068 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1069 800100. 1070 107120090622: 1072 Layout of struct vnet has changed as routing related variables were 1073 moved to their own Vimage module. Modules need to be recompiled. Bump 1074 __FreeBSD_version to 800099. 1075 107620090619: 1077 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1078 respectively. As long as no more than 16 groups per process are used, 1079 no changes should be visible. When more than 16 groups are used, old 1080 binaries may fail if they call getgroups() or getgrouplist() with 1081 statically sized storage. Recompiling will work around this, but 1082 applications should be modified to use dynamically allocated storage 1083 for group arrays as POSIX.1-2008 does not cap an implementation's 1084 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1085 1086 NFS and portalfs mounts may also be affected as the list of groups is 1087 truncated to 16. Users of NFS who use more than 16 groups, should 1088 take care that negative group permissions are not used on the exported 1089 file systems as they will not be reliable unless a GSSAPI based 1090 authentication method is used. 1091 109220090616: 1093 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1094 option compiles in the support for adaptive spinning for lockmgrs 1095 which want to enable it. The lockinit() function now accepts the flag 1096 LK_ADAPTIVE in order to make the lock object subject to adaptive 1097 spinning when both held in write and read mode. 1098 109920090613: 1100 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1101 changed. User applications that use this ioctl need to be rebuilt. 1102 110320090611: 1104 The layout of struct thread has changed. Kernel and modules need to 1105 be rebuilt. 1106 110720090608: 1108 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1109 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1110 111120090602: 1112 window(1) has been removed from the base system. It can now be 1113 installed from ports. The port is called misc/window. 1114 111520090601: 1116 The way we are storing and accessing `routing table' entries has 1117 changed. Programs reading the FIB, like netstat, need to be 1118 re-compiled. 1119 112020090601: 1121 A new netisr implementation has been added for FreeBSD 8. Network 1122 file system modules, such as igmp, ipdivert, and others, should be 1123 rebuilt. 1124 Bump __FreeBSD_version to 800096. 1125 112620090530: 1127 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1128 more valid. 1129 113020090530: 1131 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1132 Bump __FreeBSD_version to 800094. 1133 113420090529: 1135 Add mnt_xflag field to 'struct mount'. File system modules need to be 1136 rebuilt. 1137 Bump __FreeBSD_version to 800093. 1138 113920090528: 1140 The compiling option ADAPTIVE_SX has been retired while it has been 1141 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1142 The KPI for sx_init_flags() changes as accepting flags: 1143 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1144 been introduced in order to handle the reversed logic. 1145 Bump __FreeBSD_version to 800092. 1146 114720090527: 1148 Add support for hierarchical jails. Remove global securelevel. 1149 Bump __FreeBSD_version to 800091. 1150 115120090523: 1152 The layout of struct vnet_net has changed, therefore modules 1153 need to be rebuilt. 1154 Bump __FreeBSD_version to 800090. 1155 115620090523: 1157 The newly imported zic(8) produces a new format in the output. Please 1158 run tzsetup(8) to install the newly created data to /etc/localtime. 1159 116020090520: 1161 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1162 hw.usb.* and is now consistent again with previous releases. 1163 116420090520: 1165 802.11 monitor mode support was revised and driver api's were changed. 1166 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1167 of DLT_IEEE802_11. No user-visible data structures were changed but 1168 applications that use DLT_IEEE802_11 may require changes. 1169 Bump __FreeBSD_version to 800088. 1170 117120090430: 1172 The layout of the following structs has changed: sysctl_oid, 1173 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1174 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1175 panics may be experienced. World rebuild is required for 1176 correctly checking networking state from userland. 1177 Bump __FreeBSD_version to 800085. 1178 117920090429: 1180 MLDv2 and Source-Specific Multicast (SSM) have been merged 1181 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1182 The implementation of SSM within FreeBSD's IPv6 stack closely 1183 follows the IPv4 implementation. 1184 1185 For kernel developers: 1186 1187 * The most important changes are that the ip6_output() and 1188 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1189 and this lock has been downgraded to a non-recursive mutex. 1190 1191 * As with the changes to the IPv4 stack to support SSM, filtering 1192 of inbound multicast traffic must now be performed by transport 1193 protocols within the IPv6 stack. This does not apply to TCP and 1194 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1195 1196 * The KPIs used by IPv6 multicast are similar to those used by 1197 the IPv4 stack, with the following differences: 1198 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1199 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1200 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1201 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1202 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1203 for MLDv1 have an additional 'timer' argument which is used to 1204 jitter the initial membership report for the solicited-node 1205 multicast membership on-link. 1206 * This is not strictly needed for MLDv2, which already jitters 1207 its report transmissions. However, the 'timer' argument is 1208 preserved in case MLDv1 is active on the interface. 1209 1210 * The KAME linked-list based IPv6 membership implementation has 1211 been refactored to use a vector similar to that used by the IPv4 1212 stack. 1213 Code which maintains a list of its own multicast memberships 1214 internally, e.g. carp, has been updated to reflect the new 1215 semantics. 1216 1217 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1218 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1219 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1220 implementation constraint which needs to be addressed in HEAD. 1221 1222 For application developers: 1223 1224 * The changes are broadly similar to those made for the IPv4 1225 stack. 1226 1227 * The use of IPv4 and IPv6 multicast socket options on the same 1228 socket, using mapped addresses, HAS NOT been tested or supported. 1229 1230 * There are a number of issues with the implementation of various 1231 IPv6 multicast APIs which need to be resolved in the API surface 1232 before the implementation is fully compatible with KAME userland 1233 use, and these are mostly to do with interface index treatment. 1234 1235 * The literature available discusses the use of either the delta / ASM 1236 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1237 using setsourcefilter(3)/getsourcefilter(3). For more information 1238 please refer to RFC 3768, 'Socket Interface Extensions for 1239 Multicast Source Filters'. 1240 1241 * Applications which use the published RFC 3678 APIs should be fine. 1242 1243 For systems administrators: 1244 1245 * The mtest(8) utility has been refactored to support IPv6, in 1246 addition to IPv4. Interface addresses are no longer accepted 1247 as arguments, their names must be used instead. The utility 1248 will map the interface name to its first IPv4 address as 1249 returned by getifaddrs(3). 1250 1251 * The ifmcstat(8) utility has also been updated to print the MLDv2 1252 endpoint state and source filter lists via sysctl(3). 1253 1254 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1255 loopback of IPv6 multicast datagrams by default; it defaults to 1 1256 to preserve the existing behaviour. Disabling multicast loopback is 1257 recommended for optimal system performance. 1258 1259 * The IPv6 MROUTING code has been changed to examine this sysctl 1260 instead of attempting to perform a group lookup before looping 1261 back forwarded datagrams. 1262 1263 Bump __FreeBSD_version to 800084. 1264 126520090422: 1266 Implement low-level Bluetooth HCI API. 1267 Bump __FreeBSD_version to 800083. 1268 126920090419: 1270 The layout of struct malloc_type, used by modules to register new 1271 memory allocation types, has changed. Most modules will need to 1272 be rebuilt or panics may be experienced. 1273 Bump __FreeBSD_version to 800081. 1274 127520090415: 1276 Anticipate overflowing inp_flags - add inp_flags2. 1277 This changes most offsets in inpcb, so checking v4 connection 1278 state will require a world rebuild. 1279 Bump __FreeBSD_version to 800080. 1280 128120090415: 1282 Add an llentry to struct route and struct route_in6. Modules 1283 embedding a struct route will need to be recompiled. 1284 Bump __FreeBSD_version to 800079. 1285 128620090414: 1287 The size of rt_metrics_lite and by extension rtentry has changed. 1288 Networking administration apps will need to be recompiled. 1289 The route command now supports show as an alias for get, weighting 1290 of routes, sticky and nostick flags to alter the behavior of stateful 1291 load balancing. 1292 Bump __FreeBSD_version to 800078. 1293 129420090408: 1295 Do not use Giant for kbdmux(4) locking. This is wrong and 1296 apparently causing more problems than it solves. This will 1297 re-open the issue where interrupt handlers may race with 1298 kbdmux(4) in polling mode. Typical symptoms include (but 1299 not limited to) duplicated and/or missing characters when 1300 low level console functions (such as gets) are used while 1301 interrupts are enabled (for example geli password prompt, 1302 mountroot prompt etc.). Disabling kbdmux(4) may help. 1303 130420090407: 1305 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1306 kernel modules referencing any of the above need to be recompiled. 1307 Bump __FreeBSD_version to 800075. 1308 130920090320: 1310 GEOM_PART has become the default partition slicer for storage devices, 1311 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1312 introduces some changes: 1313 1314 MSDOS/EBR: the devices created from MSDOS extended partition entries 1315 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1316 to devices with offset-based names. fstabs may need to be modified. 1317 1318 BSD: the "geometry does not match label" warning is harmless in most 1319 cases but it points to problems in file system misalignment with 1320 disk geometry. The "c" partition is now implicit, covers the whole 1321 top-level drive and cannot be (mis)used by users. 1322 1323 General: Kernel dumps are now not allowed to be written to devices 1324 whose partition types indicate they are meant to be used for file 1325 systems (or, in case of MSDOS partitions, as something else than 1326 the "386BSD" type). 1327 1328 Most of these changes date approximately from 200812. 1329 133020090319: 1331 The uscanner(4) driver has been removed from the kernel. This follows 1332 Linux removing theirs in 2.6 and making libusb the default interface 1333 (supported by sane). 1334 133520090319: 1336 The multicast forwarding code has been cleaned up. netstat(1) 1337 only relies on KVM now for printing bandwidth upcall meters. 1338 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1339 ip6_mroute_mod respectively. The config(5) options for statically 1340 compiling this code remain the same, i.e. 'options MROUTING'. 1341 134220090315: 1343 Support for the IFF_NEEDSGIANT network interface flag has been 1344 removed, which means that non-MPSAFE network device drivers are no 1345 longer supported. In particular, if_ar, if_sr, and network device 1346 drivers from the old (legacy) USB stack can no longer be built or 1347 used. 1348 134920090313: 1350 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1351 a bunch of new language catalog files have also been added. 1352 This means that some common libc messages are now localized and 1353 they depend on the LC_MESSAGES environmental variable. 1354 135520090313: 1356 The k8temp(4) driver has been renamed to amdtemp(4) since 1357 support for Family 10 and Family 11 CPU families was added. 1358 135920090309: 1360 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1361 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1362 1363 For kernel developers, the most important changes are that the 1364 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1365 and this lock has been downgraded to a non-recursive mutex. 1366 1367 Transport protocols (UDP, Raw IP) are now responsible for filtering 1368 inbound multicast traffic according to group membership and source 1369 filters. The imo_multicast_filter() KPI exists for this purpose. 1370 Transports which do not use multicast (SCTP, TCP) already reject 1371 multicast by default. Forwarding and receive performance may improve 1372 as a mutex acquisition is no longer needed in the ip_input() 1373 low-level input path. in_addmulti() and in_delmulti() are shimmed 1374 to new KPIs which exist to support SSM in-kernel. 1375 1376 For application developers, it is recommended that loopback of 1377 multicast datagrams be disabled for best performance, as this 1378 will still cause the lock to be taken for each looped-back 1379 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1380 be tuned to 0 to disable loopback by default; it defaults to 1 1381 to preserve the existing behaviour. 1382 1383 For systems administrators, to obtain best performance with 1384 multicast reception and multiple groups, it is always recommended 1385 that a card with a suitably precise hash filter is used. Hash 1386 collisions will still result in the lock being taken within the 1387 transport protocol input path to check group membership. 1388 1389 If deploying FreeBSD in an environment with IGMP snooping switches, 1390 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1391 enabled; this forces 224.0.0.0/24 group membership to be announced 1392 via IGMP. 1393 1394 The size of 'struct igmpstat' has changed; netstat needs to be 1395 recompiled to reflect this. 1396 Bump __FreeBSD_version to 800070. 1397 139820090309: 1399 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1400 updated to use it. This requires a buildworld/installworld in order to 1401 update the library and dependencies (usbconfig, etc). Its advisable to 1402 rebuild all ports which uses libusb. More specific directions are given 1403 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1404 libusb are no longer required and can be removed. 1405 140620090302: 1407 A workaround is committed to allow the creation of System V shared 1408 memory segment of size > 2 GB on the 64-bit architectures. 1409 Due to a limitation of the existing ABI, the shm_segsz member 1410 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1411 wrong for large segments. Note that limits must be explicitly 1412 raised to allow such segments to be created. 1413 141420090301: 1415 The layout of struct ifnet has changed, requiring a rebuild of all 1416 network device driver modules. 1417 141820090227: 1419 The /dev handling for the new USB stack has changed, a 1420 buildworld/installworld is required for libusb20. 1421 142220090223: 1423 The new USB2 stack has now been permanently moved in and all kernel and 1424 module names reverted to their previous values (eg, usb, ehci, ohci, 1425 ums, ...). The old usb stack can be compiled in by prefixing the name 1426 with the letter 'o', the old usb modules have been removed. 1427 Updating entry 20090216 for xorg and 20090215 for libmap may still 1428 apply. 1429 143020090217: 1431 The rc.conf(5) option if_up_delay has been renamed to 1432 defaultroute_delay to better reflect its purpose. If you have 1433 customized this setting in /etc/rc.conf you need to update it to 1434 use the new name. 1435 143620090216: 1437 xorg 7.4 wants to configure its input devices via hald which does not 1438 yet work with USB2. If the keyboard/mouse does not work in xorg then 1439 add 1440 Option "AllowEmptyInput" "off" 1441 to your ServerLayout section. This will cause X to use the configured 1442 kbd and mouse sections from your xorg.conf. 1443 144420090215: 1445 The GENERIC kernels for all architectures now default to the new USB2 1446 stack. No kernel config options or code have been removed so if a 1447 problem arises please report it and optionally revert to the old USB 1448 stack. If you are loading USB kernel modules or have a custom kernel 1449 that includes GENERIC then ensure that usb names are also changed over, 1450 eg uftdi -> usb2_serial_ftdi. 1451 1452 Older programs linked against the ports libusb 0.1 need to be 1453 redirected to the new stack's libusb20. /etc/libmap.conf can 1454 be used for this: 1455 # Map old usb library to new one for usb2 stack 1456 libusb-0.1.so.8 libusb20.so.1 1457 145820090209: 1459 All USB ethernet devices now attach as interfaces under the name ueN 1460 (eg. ue0). This is to provide a predictable name as vendors often 1461 change usb chipsets in a product without notice. 1462 146320090203: 1464 The ichsmb(4) driver has been changed to require SMBus slave 1465 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1466 All of the other SMBus controller drivers require left-justified 1467 slave addresses, so this change makes all the drivers provide the 1468 same interface. 1469 147020090201: 1471 INET6 statistics (struct ip6stat) was updated. 1472 netstat(1) needs to be recompiled. 1473 147420090119: 1475 NTFS has been removed from GENERIC kernel on amd64 to match 1476 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1477 will load ntfs.ko module automatically when NTFS support is 1478 actually needed, unless ntfs.ko is not installed or security 1479 level prohibits loading kernel modules. If either is the case, 1480 "options NTFS" has to be added into kernel config. 1481 148220090115: 1483 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1484 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1485 800061. User space tools that rely on the size of struct tcpcb in 1486 tcp_var.h (e.g. sockstat) need to be recompiled. 1487 148820081225: 1489 ng_tty(4) module updated to match the new TTY subsystem. 1490 Due to API change, user-level applications must be updated. 1491 New API support added to mpd5 CVS and expected to be present 1492 in next mpd5.3 release. 1493 149420081219: 1495 With __FreeBSD_version 800060 the makefs tool is part of 1496 the base system (it was a port). 1497 149820081216: 1499 The afdata and ifnet locks have been changed from mutexes to 1500 rwlocks, network modules will need to be re-compiled. 1501 150220081214: 1503 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1504 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1505 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1506 architecture and 40 bytes on 64-bit architecture. The userland 1507 applications "arp" and "ndp" have been updated accordingly. 1508 The output from "netstat -r" shows only routing entries and 1509 none of the L2 information. 1510 151120081130: 1512 __FreeBSD_version 800057 marks the switchover from the 1513 binary ath hal to source code. Users must add the line: 1514 1515 options AH_SUPPORT_AR5416 1516 1517 to their kernel config files when specifying: 1518 1519 device ath_hal 1520 1521 The ath_hal module no longer exists; the code is now compiled 1522 together with the driver in the ath module. It is now 1523 possible to tailor chip support (i.e. reduce the set of chips 1524 and thereby the code size); consult ath_hal(4) for details. 1525 152620081121: 1527 __FreeBSD_version 800054 adds memory barriers to 1528 <machine/atomic.h>, new interfaces to ifnet to facilitate 1529 multiple hardware transmit queues for cards that support 1530 them, and a lock-less ring-buffer implementation to 1531 enable drivers to more efficiently manage queueing of 1532 packets. 1533 153420081117: 1535 A new version of ZFS (version 13) has been merged to -HEAD. 1536 This version has zpool attribute "listsnapshots" off by 1537 default, which means "zfs list" does not show snapshots, 1538 and is the same as Solaris behavior. 1539 154020081028: 1541 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1542 154320081009: 1544 The uhci, ohci, ehci and slhci USB Host controller drivers have 1545 been put into separate modules. If you load the usb module 1546 separately through loader.conf you will need to load the 1547 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1548 controller add the following to loader.conf: 1549 1550 uhci_load="YES" 1551 ehci_load="YES" 1552 155320081009: 1554 The ABI used by the PMC toolset has changed. Please keep 1555 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1556 sync. 1557 155820081009: 1559 atapci kernel module now includes only generic PCI ATA 1560 driver. AHCI driver moved to ataahci kernel module. 1561 All vendor-specific code moved into separate kernel modules: 1562 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1563 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1564 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1565 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1566 156720080820: 1568 The TTY subsystem of the kernel has been replaced by a new 1569 implementation, which provides better scalability and an 1570 improved driver model. Most common drivers have been migrated to 1571 the new TTY subsystem, while others have not. The following 1572 drivers have not yet been ported to the new TTY layer: 1573 1574 PCI/ISA: 1575 cy, digi, rc, rp, sio 1576 1577 USB: 1578 ubser, ucycom 1579 1580 Line disciplines: 1581 ng_h4, ng_tty, ppp, sl, snp 1582 1583 Adding these drivers to your kernel configuration file shall 1584 cause compilation to fail. 1585 158620080818: 1587 ntpd has been upgraded to 4.2.4p5. 1588 158920080801: 1590 OpenSSH has been upgraded to 5.1p1. 1591 1592 For many years, FreeBSD's version of OpenSSH preferred DSA 1593 over RSA for host and user authentication keys. With this 1594 upgrade, we've switched to the vendor's default of RSA over 1595 DSA. This may cause upgraded clients to warn about unknown 1596 host keys even for previously known hosts. Users should 1597 follow the usual procedure for verifying host keys before 1598 accepting the RSA key. 1599 1600 This can be circumvented by setting the "HostKeyAlgorithms" 1601 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1602 command line. 1603 1604 Please note that the sequence of keys offered for 1605 authentication has been changed as well. You may want to 1606 specify IdentityFile in a different order to revert this 1607 behavior. 1608 160920080713: 1610 The sio(4) driver has been removed from the i386 and amd64 1611 kernel configuration files. This means uart(4) is now the 1612 default serial port driver on those platforms as well. 1613 1614 To prevent collisions with the sio(4) driver, the uart(4) driver 1615 uses different names for its device nodes. This means the 1616 onboard serial port will now most likely be called "ttyu0" 1617 instead of "ttyd0". You may need to reconfigure applications to 1618 use the new device names. 1619 1620 When using the serial port as a boot console, be sure to update 1621 /boot/device.hints and /etc/ttys before booting the new kernel. 1622 If you forget to do so, you can still manually specify the hints 1623 at the loader prompt: 1624 1625 set hint.uart.0.at="isa" 1626 set hint.uart.0.port="0x3F8" 1627 set hint.uart.0.flags="0x10" 1628 set hint.uart.0.irq="4" 1629 boot -s 1630 163120080609: 1632 The gpt(8) utility has been removed. Use gpart(8) to partition 1633 disks instead. 1634 163520080603: 1636 The version that Linuxulator emulates was changed from 2.4.2 1637 to 2.6.16. If you experience any problems with Linux binaries 1638 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1639 if it fixes the problem contact emulation mailing list. 1640 164120080525: 1642 ISDN4BSD (I4B) was removed from the src tree. You may need to 1643 update a your kernel configuration and remove relevant entries. 1644 164520080509: 1646 I have checked in code to support multiple routing tables. 1647 See the man pages setfib(1) and setfib(2). 1648 This is a hopefully backwards compatible version, 1649 but to make use of it you need to compile your kernel 1650 with options ROUTETABLES=2 (or more up to 16). 1651 165220080420: 1653 The 802.11 wireless support was redone to enable multi-bss 1654 operation on devices that are capable. The underlying device 1655 is no longer used directly but instead wlanX devices are 1656 cloned with ifconfig. This requires changes to rc.conf files. 1657 For example, change: 1658 ifconfig_ath0="WPA DHCP" 1659 to 1660 wlans_ath0=wlan0 1661 ifconfig_wlan0="WPA DHCP" 1662 see rc.conf(5) for more details. In addition, mergemaster of 1663 /etc/rc.d is highly recommended. Simultaneous update of userland 1664 and kernel wouldn't hurt either. 1665 1666 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1667 modules were merged into the base wlan module. All references 1668 to these modules (e.g. in kernel config files) must be removed. 1669 167020080408: 1671 psm(4) has gained write(2) support in native operation level. 1672 Arbitrary commands can be written to /dev/psm%d and status can 1673 be read back from it. Therefore, an application is responsible 1674 for status validation and error recovery. It is a no-op in 1675 other operation levels. 1676 167720080312: 1678 Support for KSE threading has been removed from the kernel. To 1679 run legacy applications linked against KSE libmap.conf may 1680 be used. The following libmap.conf may be used to ensure 1681 compatibility with any prior release: 1682 1683 libpthread.so.1 libthr.so.1 1684 libpthread.so.2 libthr.so.2 1685 libkse.so.3 libthr.so.3 1686 168720080301: 1688 The layout of struct vmspace has changed. This affects libkvm 1689 and any executables that link against libkvm and use the 1690 kvm_getprocs() function. In particular, but not exclusively, 1691 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1692 The effects are minimal, but it's advisable to upgrade world 1693 nonetheless. 1694 169520080229: 1696 The latest em driver no longer has support in it for the 1697 82575 adapter, this is now moved to the igb driver. The 1698 split was done to make new features that are incompatible 1699 with older hardware easier to do. 1700 170120080220: 1702 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1703 likewise the kernel option is now GEOM_LINUX_LVM. 1704 170520080211: 1706 The default NFS mount mode has changed from UDP to TCP for 1707 increased reliability. If you rely on (insecurely) NFS 1708 mounting across a firewall you may need to update your 1709 firewall rules. 1710 171120080208: 1712 Belatedly note the addition of m_collapse for compacting 1713 mbuf chains. 1714 171520080126: 1716 The fts(3) structures have been changed to use adequate 1717 integer types for their members and so to be able to cope 1718 with huge file trees. The old fts(3) ABI is preserved 1719 through symbol versioning in libc, so third-party binaries 1720 using fts(3) should still work, although they will not take 1721 advantage of the extended types. At the same time, some 1722 third-party software might fail to build after this change 1723 due to unportable assumptions made in its source code about 1724 fts(3) structure members. Such software should be fixed 1725 by its vendor or, in the worst case, in the ports tree. 1726 FreeBSD_version 800015 marks this change for the unlikely 1727 case that a portable fix is impossible. 1728 172920080123: 1730 To upgrade to -current after this date, you must be running 1731 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1732 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1733 173420071128: 1735 The ADAPTIVE_GIANT kernel option has been retired because its 1736 functionality is the default now. 1737 173820071118: 1739 The AT keyboard emulation of sunkbd(4) has been turned on 1740 by default. In order to make the special symbols of the Sun 1741 keyboards driven by sunkbd(4) work under X these now have 1742 to be configured the same way as Sun USB keyboards driven 1743 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1744 1745 Option "XkbLayout" "us" 1746 Option "XkbRules" "xorg" 1747 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1748 174920071024: 1750 It has been decided that it is desirable to provide ABI 1751 backwards compatibility to the FreeBSD 4/5/6 versions of the 1752 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1753 broken with the introduction of PCI domain support (see the 1754 20070930 entry). Unfortunately, this required the ABI of 1755 PCIOCGETCONF to be broken again in order to be able to 1756 provide backwards compatibility to the old version of that 1757 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1758 again. As for prominent ports this affects neither pciutils 1759 nor xorg-server this time, the hal port needs to be rebuilt 1760 however. 1761 176220071020: 1763 The misnamed kthread_create() and friends have been renamed 1764 to kproc_create() etc. Many of the callers already 1765 used kproc_start().. 1766 I will return kthread_create() and friends in a while 1767 with implementations that actually create threads, not procs. 1768 Renaming corresponds with version 800002. 1769 177020071010: 1771 RELENG_7 branched. 1772 1773COMMON ITEMS: 1774 1775 General Notes 1776 ------------- 1777 Avoid using make -j when upgrading. While generally safe, there are 1778 sometimes problems using -j to upgrade. If your upgrade fails with 1779 -j, please try again without -j. From time to time in the past there 1780 have been problems using -j with buildworld and/or installworld. This 1781 is especially true when upgrading between "distant" versions (eg one 1782 that cross a major release boundary or several minor releases, or when 1783 several months have passed on the -current branch). 1784 1785 Sometimes, obscure build problems are the result of environment 1786 poisoning. This can happen because the make utility reads its 1787 environment when searching for values for global variables. To run 1788 your build attempts in an "environmental clean room", prefix all make 1789 commands with 'env -i '. See the env(1) manual page for more details. 1790 1791 When upgrading from one major version to another it is generally best 1792 to upgrade to the latest code in the currently installed branch first, 1793 then do an upgrade to the new branch. This is the best-tested upgrade 1794 path, and has the highest probability of being successful. Please try 1795 this approach before reporting problems with a major version upgrade. 1796 1797 When upgrading a live system, having a root shell around before 1798 installing anything can help undo problems. Not having a root shell 1799 around can lead to problems if pam has changed too much from your 1800 starting point to allow continued authentication after the upgrade. 1801 1802 ZFS notes 1803 --------- 1804 When upgrading the boot ZFS pool to a new version, always follow 1805 these two steps: 1806 1807 1.) recompile and reinstall the ZFS boot loader and boot block 1808 (this is part of "make buildworld" and "make installworld") 1809 1810 2.) update the ZFS boot block on your boot drive 1811 1812 The following example updates the ZFS boot block on the first 1813 partition (freebsd-boot) of a GPT partitioned drive ad0: 1814 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1815 1816 Non-boot pools do not need these updates. 1817 1818 To build a kernel 1819 ----------------- 1820 If you are updating from a prior version of FreeBSD (even one just 1821 a few days old), you should follow this procedure. It is the most 1822 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1823 1824 make kernel-toolchain 1825 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1826 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1827 1828 To test a kernel once 1829 --------------------- 1830 If you just want to boot a kernel once (because you are not sure 1831 if it works, or if you want to boot a known bad kernel to provide 1832 debugging information) run 1833 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1834 nextboot -k testkernel 1835 1836 To just build a kernel when you know that it won't mess you up 1837 -------------------------------------------------------------- 1838 This assumes you are already running a CURRENT system. Replace 1839 ${arch} with the architecture of your machine (e.g. "i386", 1840 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1841 1842 cd src/sys/${arch}/conf 1843 config KERNEL_NAME_HERE 1844 cd ../compile/KERNEL_NAME_HERE 1845 make depend 1846 make 1847 make install 1848 1849 If this fails, go to the "To build a kernel" section. 1850 1851 To rebuild everything and install it on the current system. 1852 ----------------------------------------------------------- 1853 # Note: sometimes if you are running current you gotta do more than 1854 # is listed here if you are upgrading from a really old current. 1855 1856 <make sure you have good level 0 dumps> 1857 make buildworld 1858 make kernel KERNCONF=YOUR_KERNEL_HERE 1859 [1] 1860 <reboot in single user> [3] 1861 mergemaster -p [5] 1862 make installworld 1863 mergemaster -i [4] 1864 make delete-old [6] 1865 <reboot> 1866 1867 To cross-install current onto a separate partition 1868 -------------------------------------------------- 1869 # In this approach we use a separate partition to hold 1870 # current's root, 'usr', and 'var' directories. A partition 1871 # holding "/", "/usr" and "/var" should be about 2GB in 1872 # size. 1873 1874 <make sure you have good level 0 dumps> 1875 <boot into -stable> 1876 make buildworld 1877 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1878 <maybe newfs current's root partition> 1879 <mount current's root partition on directory ${CURRENT_ROOT}> 1880 make installworld DESTDIR=${CURRENT_ROOT} 1881 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1882 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1883 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1884 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1885 <reboot into current> 1886 <do a "native" rebuild/install as described in the previous section> 1887 <maybe install compatibility libraries from ports/misc/compat*> 1888 <reboot> 1889 1890 1891 To upgrade in-place from stable to current 1892 ---------------------------------------------- 1893 <make sure you have good level 0 dumps> 1894 make buildworld [9] 1895 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1896 [1] 1897 <reboot in single user> [3] 1898 mergemaster -p [5] 1899 make installworld 1900 mergemaster -i [4] 1901 make delete-old [6] 1902 <reboot> 1903 1904 Make sure that you've read the UPDATING file to understand the 1905 tweaks to various things you need. At this point in the life 1906 cycle of current, things change often and you are on your own 1907 to cope. The defaults can also change, so please read ALL of 1908 the UPDATING entries. 1909 1910 Also, if you are tracking -current, you must be subscribed to 1911 freebsd-current@freebsd.org. Make sure that before you update 1912 your sources that you have read and understood all the recent 1913 messages there. If in doubt, please track -stable which has 1914 much fewer pitfalls. 1915 1916 [1] If you have third party modules, such as vmware, you 1917 should disable them at this point so they don't crash your 1918 system on reboot. 1919 1920 [3] From the bootblocks, boot -s, and then do 1921 fsck -p 1922 mount -u / 1923 mount -a 1924 cd src 1925 adjkerntz -i # if CMOS is wall time 1926 Also, when doing a major release upgrade, it is required that 1927 you boot into single user mode to do the installworld. 1928 1929 [4] Note: This step is non-optional. Failure to do this step 1930 can result in a significant reduction in the functionality of the 1931 system. Attempting to do it by hand is not recommended and those 1932 that pursue this avenue should read this file carefully, as well 1933 as the archives of freebsd-current and freebsd-hackers mailing lists 1934 for potential gotchas. The -U option is also useful to consider. 1935 See mergemaster(8) for more information. 1936 1937 [5] Usually this step is a noop. However, from time to time 1938 you may need to do this if you get unknown user in the following 1939 step. It never hurts to do it all the time. You may need to 1940 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1941 install) after the buildworld before this step if you last updated 1942 from current before 20130425 or from -stable before 20130430. 1943 1944 [6] This only deletes old files and directories. Old libraries 1945 can be deleted by "make delete-old-libs", but you have to make 1946 sure that no program is using those libraries anymore. 1947 1948 [8] In order to have a kernel that can run the 4.x binaries needed to 1949 do an installworld, you must include the COMPAT_FREEBSD4 option in 1950 your kernel. Failure to do so may leave you with a system that is 1951 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1952 required to run the 5.x binaries on more recent kernels. And so on 1953 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1954 1955 Make sure that you merge any new devices from GENERIC since the 1956 last time you updated your kernel config file. 1957 1958 [9] When checking out sources, you must include the -P flag to have 1959 cvs prune empty directories. 1960 1961 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1962 "?=" instead of the "=" assignment operator, so that buildworld can 1963 override the CPUTYPE if it needs to. 1964 1965 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1966 not on the command line, or in /etc/make.conf. buildworld will 1967 warn if it is improperly defined. 1968FORMAT: 1969 1970This file contains a list, in reverse chronological order, of major 1971breakages in tracking -current. It is not guaranteed to be a complete 1972list of such breakages, and only contains entries since October 10, 2007. 1973If you need to see UPDATING entries from before that date, you will need 1974to fetch an UPDATING file from an older FreeBSD release. 1975 1976Copyright information: 1977 1978Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1979 1980Redistribution, publication, translation and use, with or without 1981modification, in full or in part, in any form or format of this 1982document are permitted without further permission from the author. 1983 1984THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1985IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1986WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1987DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1988INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1989(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1990SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1991HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1992STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1993IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1994POSSIBILITY OF SUCH DAMAGE. 1995 1996Contact Warner Losh if you have any questions about your use of 1997this document. 1998 1999$FreeBSD: head/UPDATING 255348 2013-09-07 07:26:51Z theraven $ 2000