UPDATING revision 255453
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 5420130903: 55 AES-NI intrinsic support has been added to gcc. The AES-NI module 56 has been updated to use this support. A new gcc is required to build 57 the aesni module on both i386 and amd64. 58 5920130827: 60 Thomas Dickey (vendor author thereof) reports that dialog(1) since 61 2011/10/18 has a bug in handling --hline. Testers and I noticed the 62 --hline is not ignored but displayed as a NULL string, regardless of 63 value. This will cause confusion in some bsdconfig dialogs where the 64 --hline is used to inform users which keybindings to use. This will 65 likewise affect any other persons relying on --hline. It also looks 66 rather strange seeing "[]" at the bottom of dialog(1) widgets when 67 passing --hline "anything". Thomas said he will have a look in a few 68 weeks. NOTE: The "[]" brackets appear with the left-edge where it 69 would normally appear given the width of text to display, but the 70 displayed text is not there (part of the bug). 71 7220130821: 73 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 74 Thus "device padlock_rng" and "device rdrand_rng" should be 75 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 76 7720130813: 78 WITH_ICONV has been split into two feature sets. WITH_ICONV now 79 enables just the iconv* functionality and is now on by default. 80 WITH_LIBICONV_COMPAT enables the libiconv api and link time 81 compatability. Set WITHOUT_ICONV to build the old way. 82 If you have been using WITH_ICONV before, you will very likely 83 need to turn on WITH_LIBICONV_COMPAT. 84 8520130806: 86 INVARIANTS option now enables DEBUG for code with OpenSolaris and 87 Illumos origin, including ZFS. If you have INVARIANTS in your 88 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 89 explicitly. 90 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 91 locks if WITNESS option was set. Because that generated a lot of 92 witness(9) reports and all of them were believed to be false 93 positives, this is no longer done. New option OPENSOLARIS_WITNESS 94 can be used to achieve the previous behavior. 95 9620130806: 97 Timer values in IPv6 data structures now use time_uptime instead 98 of time_second. Although this is not a user-visible functional 99 change, userland utilities which directly use them---ndp(8), 100 rtadvd(8), and rtsold(8) in the base system---need to be updated 101 to r253970 or later. 102 10320130802: 104 find -delete can now delete the pathnames given as arguments, 105 instead of only files found below them or if the pathname did 106 not contain any slashes. Formerly, the following error message 107 would result: 108 109 find: -delete: <path>: relative path potentially not safe 110 111 Deleting the pathnames given as arguments can be prevented 112 without error messages using -mindepth 1 or by changing 113 directory and passing "." as argument to find. This works in the 114 old as well as the new version of find. 115 11620130726: 117 Behavior of devfs rules path matching has been changed. 118 Pattern is now always matched against fully qualified devfs 119 path and slash characters must be explicitly matched by 120 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 121 subdirectories must be reviewed. 122 12320130716: 124 The default ARM ABI has changed to the ARM EABI. The old ABI is 125 incompatible with the ARM EABI and all programs and modules will 126 need to be rebuilt to work with a new kernel. 127 128 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 129 130 NOTE: Support for the old ABI will be removed in the future and 131 users are advised to upgrade. 132 13320130709: 134 pkg_install has been disconnected from the build if you really need it 135 you should add WITH_PKGTOOLS in your src.conf(5). 136 13720130709: 138 Most of network statistics structures were changed to be able 139 keep 64-bits counters. Thus all tools, that work with networking 140 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 141 14220130629: 143 Fix targets that run multiple make's to use && rather than ; 144 so that subsequent steps depend on success of previous. 145 146 NOTE: if building 'universe' with -j* on stable/8 or stable/9 147 it would be better to start the build using bmake, to avoid 148 overloading the machine. 149 15020130618: 151 Fix a bug that allowed a tracing process (e.g. gdb) to write 152 to a memory-mapped file in the traced process's address space 153 even if neither the traced process nor the tracing process had 154 write access to that file. 155 15620130615: 157 CVS has been removed from the base system. An exact copy 158 of the code is available from the devel/cvs port. 159 16020130613: 161 Some people report the following error after the switch to bmake: 162 163 make: illegal option -- J 164 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 165 ... 166 *** [buildworld] Error code 2 167 168 this likely due to an old instance of make in 169 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 170 which src/Makefile will use that blindly, if it exists, so if 171 you see the above error: 172 173 rm -rf `make -V MAKEPATH` 174 175 should resolve it. 176 17720130516: 178 Use bmake by default. 179 Whereas before one could choose to build with bmake via 180 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 181 make. The goal is to remove these knobs for 10-RELEASE. 182 183 It is worth noting that bmake (like gmake) treats the command 184 line as the unit of failure, rather than statements within the 185 command line. Thus '(cd some/where && dosomething)' is safer 186 than 'cd some/where; dosomething'. The '()' allows consistent 187 behavior in parallel build. 188 18920130429: 190 Fix a bug that allows NFS clients to issue READDIR on files. 191 19220130426: 193 The WITHOUT_IDEA option has been removed because 194 the IDEA patent expired. 195 19620130426: 197 The sysctl which controls TRIM support under ZFS has been renamed 198 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 199 enabled by default. 200 20120130425: 202 The mergemaster command now uses the default MAKEOBJDIRPREFIX 203 rather than creating it's own in the temporary directory in 204 order allow access to bootstrapped versions of tools such as 205 install and mtree. When upgrading from version of FreeBSD where 206 the install command does not support -l, you will need to 207 install a new mergemaster command if mergemaster -p is required. 208 This can be accomplished with the command (cd src/usr.sbin/mergemaster 209 && make install). 210 21120130404: 212 Legacy ATA stack, disabled and replaced by new CAM-based one since 213 FreeBSD 9.0, completely removed from the sources. Kernel modules 214 atadisk and atapi*, user-level tools atacontrol and burncd are 215 removed. Kernel option `options ATA_CAM` is now permanently enabled 216 and removed. 217 21820130319: 219 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 220 and socketpair(2). Software, in particular Kerberos, may 221 automatically detect and use these during building. The resulting 222 binaries will not work on older kernels. 223 22420130308: 225 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 226 information, see the respective 20130304 entry). 227 22820130304: 229 Recent commits to callout(9) changed the size of struct callout, 230 so the KBI is probably heavily disturbed. Also, some functions 231 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 232 by macros. Every kernel module using it won't load, so rebuild 233 is requested. 234 235 The ctl device has been re-enabled in GENERIC for i386 and amd64, 236 but does not initialize by default (because of the new CTL_DISABLE 237 option) to save memory. To re-enable it, remove the CTL_DISABLE 238 option from the kernel config file or set kern.cam.ctl.disable=0 239 in /boot/loader.conf. 240 24120130301: 242 The ctl device has been disabled in GENERIC for i386 and amd64. 243 This was done due to the extra memory being allocated at system 244 initialisation time by the ctl driver which was only used if 245 a CAM target device was created. This makes a FreeBSD system 246 unusable on 128MB or less of RAM. 247 24820130208: 249 A new compression method (lz4) has been merged to -HEAD. Please 250 refer to zpool-features(7) for more information. 251 252 Please refer to the "ZFS notes" section of this file for information 253 on upgrading boot ZFS pools. 254 25520130129: 256 A BSD-licensed patch(1) variant has been added and is installed 257 as bsdpatch, being the GNU version the default patch. 258 To inverse the logic and use the BSD-licensed one as default, 259 while having the GNU version installed as gnupatch, rebuild 260 and install world with the WITH_BSD_PATCH knob set. 261 26220130121: 263 Due to the use of the new -l option to install(1) during build 264 and install, you must take care not to directly set the INSTALL 265 make variable in your /etc/make.conf, /etc/src.conf, or on the 266 command line. If you wish to use the -C flag for all installs 267 you may be able to add INSTALL+=-C to /etc/make.conf or 268 /etc/src.conf. 269 27020130118: 271 The install(1) option -M has changed meaning and now takes an 272 argument that is a file or path to append logs to. In the 273 unlikely event that -M was the last option on the command line 274 and the command line contained at least two files and a target 275 directory the first file will have logs appended to it. The -M 276 option served little practical purpose in the last decade so its 277 use is expected to be extremely rare. 278 27920121223: 280 After switching to Clang as the default compiler some users of ZFS 281 on i386 systems started to experience stack overflow kernel panics. 282 Please consider using 'options KSTACK_PAGES=4' in such configurations. 283 28420121222: 285 GEOM_LABEL now mangles label names read from file system metadata. 286 Mangling affect labels containing spaces, non-printable characters, 287 '%' or '"'. Device names in /etc/fstab and other places may need to 288 be updated. 289 29020121217: 291 By default, only the 10 most recent kernel dumps will be saved. To 292 restore the previous behaviour (no limit on the number of kernel dumps 293 stored in the dump directory) add the following line to /etc/rc.conf: 294 295 savecore_flags="" 296 29720121201: 298 With the addition of auditdistd(8), a new auditdistd user is now 299 depended on during installworld. "mergemaster -p" can be used to add 300 the user prior to installworld, as documented in the handbook. 301 30220121117: 303 The sin6_scope_id member variable in struct sockaddr_in6 is now 304 filled by the kernel before passing the structure to the userland via 305 sysctl or routing socket. This means the KAME-specific embedded scope 306 id in sin6_addr.s6_addr[2] is always cleared in userland application. 307 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 308 __FreeBSD_version is bumped to 1000025. 309 31020121105: 311 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 312 This means that the world and kernel will be compiled with clang 313 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 314 and /usr/bin/cpp. To disable this behavior and revert to building 315 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 316 of current may need to bootstrap WITHOUT_CLANG first if the clang 317 build fails (its compatibility window doesn't extend to the 9 stable 318 branch point). 319 32020121102: 321 The IPFIREWALL_FORWARD kernel option has been removed. Its 322 functionality now turned on by default. 323 32420121023: 325 The ZERO_COPY_SOCKET kernel option has been removed and 326 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 327 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 328 mechanism which is not safe and may result in kernel crashes. 329 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 330 driver supports disposeable external page sized mbuf storage. 331 Proper replacements for both zero-copy mechanisms are under 332 consideration and will eventually lead to complete removal 333 of the two kernel options. 334 33520121023: 336 The IPv4 network stack has been converted to network byte 337 order. The following modules need to be recompiled together 338 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 339 pf(4), ipfw(4), ng_ipfw(4), stf(4). 340 34120121022: 342 Support for non-MPSAFE filesystems was removed from VFS. The 343 VFS_VERSION was bumped, all filesystem modules shall be 344 recompiled. 345 34620121018: 347 All the non-MPSAFE filesystems have been disconnected from 348 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 349 portalfs, smbfs, xfs. 350 35120121016: 352 The interface cloning API and ABI has changed. The following 353 modules need to be recompiled together with kernel: 354 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 355 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 356 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 357 35820121015: 359 The sdhci driver was split in two parts: sdhci (generic SD Host 360 Controller logic) and sdhci_pci (actual hardware driver). 361 No kernel config modifications are required, but if you 362 load sdhc as a module you must switch to sdhci_pci instead. 363 36420121014: 365 Import the FUSE kernel and userland support into base system. 366 36720121013: 368 The GNU sort(1) program has been removed since the BSD-licensed 369 sort(1) has been the default for quite some time and no serious 370 problems have been reported. The corresponding WITH_GNU_SORT 371 knob has also gone. 372 37320121006: 374 The pfil(9) API/ABI for AF_INET family has been changed. Packet 375 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 376 with new kernel. 377 37820121001: 379 The net80211(4) ABI has been changed to allow for improved driver 380 PS-POLL and power-save support. All wireless drivers need to be 381 recompiled to work with the new kernel. 382 38320120913: 384 The random(4) support for the VIA hardware random number 385 generator (`PADLOCK') is no longer enabled unconditionally. 386 Add the padlock_rng device in the custom kernel config if 387 needed. The GENERIC kernels on i386 and amd64 do include the 388 device, so the change only affects the custom kernel 389 configurations. 390 39120120908: 392 The pf(4) packet filter ABI has been changed. pfctl(8) and 393 snmp_pf module need to be recompiled to work with new kernel. 394 39520120828: 396 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 397 to -HEAD. Pools that have empty_bpobj in active state can not be 398 imported read-write with ZFS implementations that do not support 399 this feature. For more information read the zpool-features(5) 400 manual page. 401 40220120727: 403 The sparc64 ZFS loader has been changed to no longer try to auto- 404 detect ZFS providers based on diskN aliases but now requires these 405 to be explicitly listed in the OFW boot-device environment variable. 406 40720120712: 408 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 409 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 410 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 411 41220120712: 413 The following sysctls and tunables have been renamed for consistency 414 with other variables: 415 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 416 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 417 41820120628: 419 The sort utility has been replaced with BSD sort. For now, GNU sort 420 is also available as "gnusort" or the default can be set back to 421 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 422 installed as "bsdsort". 423 42420120611: 425 A new version of ZFS (pool version 5000) has been merged to -HEAD. 426 Starting with this version the old system of ZFS pool versioning 427 is superseded by "feature flags". This concept enables forward 428 compatibility against certain future changes in functionality of ZFS 429 pools. The first read-only compatible "feature flag" for ZFS pools 430 is named "com.delphix:async_destroy". For more information 431 read the new zpool-features(5) manual page. 432 Please refer to the "ZFS notes" section of this file for information 433 on upgrading boot ZFS pools. 434 43520120417: 436 The malloc(3) implementation embedded in libc now uses sources imported 437 as contrib/jemalloc. The most disruptive API change is to 438 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 439 delete it prior to installworld, and optionally re-create it using the 440 new format after rebooting. See malloc.conf(5) for details 441 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 442 NAMESPACE section). 443 44420120328: 445 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 446 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 447 now spelled mips. This is to aid compatibility with third-party 448 software that expects this naming scheme in uname(3). Little-endian 449 settings are unchanged. If you are updating a big-endian mips64 machine 450 from before this change, you may need to set MACHINE_ARCH=mips64 in 451 your environment before the new build system will recognize your machine. 452 45320120306: 454 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 455 platforms. 456 45720120229: 458 Now unix domain sockets behave "as expected" on nullfs(5). Previously 459 nullfs(5) did not pass through all behaviours to the underlying layer, 460 as a result if we bound to a socket on the lower layer we could connect 461 only to the lower path; if we bound to the upper layer we could connect 462 only to the upper path. The new behavior is one can connect to both the 463 lower and the upper paths regardless what layer path one binds to. 464 46520120211: 466 The getifaddrs upgrade path broken with 20111215 has been restored. 467 If you have upgraded in between 20111215 and 20120209 you need to 468 recompile libc again with your kernel. You still need to recompile 469 world to be able to configure CARP but this restriction already 470 comes from 20111215. 471 47220120114: 473 The set_rcvar() function has been removed from /etc/rc.subr. All 474 base and ports rc.d scripts have been updated, so if you have a 475 port installed with a script in /usr/local/etc/rc.d you can either 476 hand-edit the rcvar= line, or reinstall the port. 477 478 An easy way to handle the mass-update of /etc/rc.d: 479 rm /etc/rc.d/* && mergemaster -i 480 48120120109: 482 panic(9) now stops other CPUs in the SMP systems, disables interrupts 483 on the current CPU and prevents other threads from running. 484 This behavior can be reverted using the kern.stop_scheduler_on_panic 485 tunable/sysctl. 486 The new behavior can be incompatible with kern.sync_on_panic. 487 48820111215: 489 The carp(4) facility has been changed significantly. Configuration 490 of the CARP protocol via ifconfig(8) has changed, as well as format 491 of CARP events submitted to devd(8) has changed. See manual pages 492 for more information. The arpbalance feature of carp(4) is currently 493 not supported anymore. 494 495 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 496 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 497 need to be recompiled. 498 49920111122: 500 The acpi_wmi(4) status device /dev/wmistat has been renamed to 501 /dev/wmistat0. 502 50320111108: 504 The option VFS_ALLOW_NONMPSAFE option has been added in order to 505 explicitely support non-MPSAFE filesystems. 506 It is on by default for all supported platform at this present 507 time. 508 50920111101: 510 The broken amd(4) driver has been replaced with esp(4) in the amd64, 511 i386 and pc98 GENERIC kernel configuration files. 512 51320110930: 514 sysinstall has been removed 515 51620110923: 517 The stable/9 branch created in subversion. This corresponds to the 518 RELENG_9 branch in CVS. 519 52020110913: 521 This commit modifies vfs_register() so that it uses a hash 522 calculation to set vfc_typenum, which is enabled by default. 523 The first time a system is booted after this change, the 524 vfc_typenum values will change for all file systems. The 525 main effect of this is a change to the NFS server file handles 526 for file systems that use vfc_typenum in their fsid, such as ZFS. 527 It will, however, prevent vfc_typenum from changing when file 528 systems are loaded in a different order for subsequent reboots. 529 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 530 until you are ready to remount all NFS clients after a reboot. 531 53220110828: 533 Bump the shared library version numbers for libraries that 534 do not use symbol versioning, have changed the ABI compared 535 to stable/8 and which shared library version was not bumped. 536 Done as part of 9.0-RELEASE cycle. 537 53820110815: 539 During the merge of Capsicum features, the fget(9) KPI was modified. 540 This may require the rebuilding of out-of-tree device drivers -- 541 issues have been reported specifically with the nVidia device driver. 542 __FreeBSD_version is bumped to 900041. 543 544 Also, there is a period between 20110811 and 20110814 where the 545 special devices /dev/{stdin,stdout,stderr} did not work correctly. 546 Building world from a kernel during that window may not work. 547 54820110628: 549 The packet filter (pf) code has been updated to OpenBSD 4.5. 550 You need to update userland tools to be in sync with kernel. 551 This update breaks backward compatibility with earlier pfsync(4) 552 versions. Care must be taken when updating redundant firewall setups. 553 55420110608: 555 The following sysctls and tunables are retired on x86 platforms: 556 machdep.hlt_cpus 557 machdep.hlt_logical_cpus 558 The following sysctl is retired: 559 machdep.hyperthreading_allowed 560 The sysctls were supposed to provide a way to dynamically offline and 561 online selected CPUs on x86 platforms, but the implementation has not 562 been reliable especially with SCHED_ULE scheduler. 563 machdep.hyperthreading_allowed tunable is still available to ignore 564 hyperthreading CPUs at OS level. 565 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 566 where X is an APIC ID of a CPU. Be advised, though, that disabling 567 CPUs in non-uniform fashion will result in non-uniform topology and 568 may lead to sub-optimal system performance with SCHED_ULE, which is 569 a default scheduler. 570 57120110607: 572 cpumask_t type is retired and cpuset_t is used in order to describe 573 a mask of CPUs. 574 57520110531: 576 Changes to ifconfig(8) for dynamic address family detection mandate 577 that you are running a kernel of 20110525 or later. Make sure to 578 follow the update procedure to boot a new kernel before installing 579 world. 580 58120110513: 582 Support for sun4v architecture is officially dropped 583 58420110503: 585 Several KPI breaking changes have been committed to the mii(4) layer, 586 the PHY drivers and consequently some Ethernet drivers using mii(4). 587 This means that miibus.ko and the modules of the affected Ethernet 588 drivers need to be recompiled. 589 590 Note to kernel developers: Given that the OUI bit reversion problem 591 was fixed as part of these changes all mii(4) commits related to OUIs, 592 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 593 handling, no longer can be merged verbatim to stable/8 and previous 594 branches. 595 59620110430: 597 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 598 into their kernel configurations along with 'device pci'. 599 60020110427: 601 The default NFS client is now the new NFS client, so fstype "newnfs" 602 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 603 Although mounts via fstype "nfs" will usually work without userland 604 changes, it is recommended that the mount(8) and mount_nfs(8) 605 commands be rebuilt from sources and that a link to mount_nfs called 606 mount_oldnfs be created. The new client is compiled into the 607 kernel with "options NFSCL" and this is needed for diskless root 608 file systems. The GENERIC kernel configs have been changed to use 609 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 610 To use the regular/old client, you can "mount -t oldnfs ...". For 611 a diskless root file system, you must also include a line like: 612 613 vfs.root.mountfrom="oldnfs:" 614 615 in the boot/loader.conf on the root fs on the NFS server to make 616 a diskless root fs use the old client. 617 61820110424: 619 The GENERIC kernels for all architectures now default to the new 620 CAM-based ATA stack. It means that all legacy ATA drivers were 621 removed and replaced by respective CAM drivers. If you are using 622 ATA device names in /etc/fstab or other places, make sure to update 623 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 624 where 'Y's are the sequential numbers starting from zero for each type 625 in order of detection, unless configured otherwise with tunables, 626 see cam(4)). There will be symbolic links created in /dev/ to map 627 old adX devices to the respective adaY. They should provide basic 628 compatibility for file systems mounting in most cases, but they do 629 not support old user-level APIs and do not have respective providers 630 in GEOM. Consider using updated management tools with new device names. 631 632 It is possible to load devices ahci, ata, siis and mvs as modules, 633 but option ATA_CAM should remain in kernel configuration to make ata 634 module work as CAM driver supporting legacy ATA controllers. Device ata 635 still can be used in modular fashion (atacore + ...). Modules atadisk 636 and atapi* are not used and won't affect operation in ATA_CAM mode. 637 Note that to use CAM-based ATA kernel should include CAM devices 638 scbus, pass, da (or explicitly ada), cd and optionally others. All of 639 them are parts of the cam module. 640 641 ataraid(4) functionality is now supported by the RAID GEOM class. 642 To use it you can load geom_raid kernel module and use graid(8) tool 643 for management. Instead of /dev/arX device names, use /dev/raid/rX. 644 645 No kernel config options or code have been removed, so if a problem 646 arises, please report it and optionally revert to the old ATA stack. 647 In order to do it you can remove from the kernel config: 648 options ATA_CAM 649 device ahci 650 device mvs 651 device siis 652 , and instead add back: 653 device atadisk # ATA disk drives 654 device ataraid # ATA RAID drives 655 device atapicd # ATAPI CDROM drives 656 device atapifd # ATAPI floppy drives 657 device atapist # ATAPI tape drives 658 65920110423: 660 The default NFS server has been changed to the new server, which 661 was referred to as the experimental server. If you need to switch 662 back to the old NFS server, you must now put the "-o" option on 663 both the mountd and nfsd commands. This can be done using the 664 mountd_flags and nfs_server_flags rc.conf variables until an 665 update to the rc scripts is committed, which is coming soon. 666 66720110418: 668 The GNU Objective-C runtime library (libobjc), and other Objective-C 669 related components have been removed from the base system. If you 670 require an Objective-C library, please use one of the available ports. 671 67220110331: 673 ath(4) has been split into bus- and device- modules. if_ath contains 674 the HAL, the TX rate control and the network device code. if_ath_pci 675 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 676 contains the AHB glue. Users need to load both if_ath_pci and if_ath 677 in order to use ath on everything else. 678 679 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 680 need to load if_ath and if_ath_pci for ath(4) operation. 681 68220110314: 683 As part of the replacement of sysinstall, the process of building 684 release media has changed significantly. For details, please re-read 685 release(7), which has been updated to reflect the new build process. 686 68720110218: 688 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 689 is the last available version under GPLv2. It brings a number of new 690 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 691 4.1 and SSE 4.2), better support for powerpc64, a number of new 692 directives, and lots of other small improvements. See the ChangeLog 693 file in contrib/binutils for the full details. 694 69520110218: 696 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 697 compliant, and will now use half of hash for authentication. 698 This will break interoperability with all stacks (including all 699 actual FreeBSD versions) who implement 700 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 701 authentication). 702 The only workaround with such peers is to use another HMAC 703 algorithm for IPsec ("phase 2") authentication. 704 70520110207: 706 Remove the uio_yield prototype and symbol. This function has 707 been misnamed since it was introduced and should not be 708 globally exposed with this name. The equivalent functionality 709 is now available using kern_yield(curthread->td_user_pri). 710 The function remains undocumented. 711 71220110112: 713 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 714 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 715 for scalar sysctls is defined but disabled. Code that needs 716 UQUAD to pass the type checking that must compile on older 717 systems where the define is not present can check against 718 __FreeBSD_version >= 900030. 719 720 The system dialog(1) has been replaced with a new version previously 721 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 722 with the previous version, but the libdialog associated with it has 723 a largely incompatible API. As such, the original version of libdialog 724 will be kept temporarily as libodialog, until its base system consumers 725 are replaced or updated. Bump __FreeBSD_version to 900030. 726 72720110103: 728 If you are trying to run make universe on a -stable system, and you get 729 the following warning: 730 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 731 unknown. config(8) likely too old." 732 or something similar to it, then you must upgrade your -stable system 733 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 734 stable/8) or build the config from the latest stable/8 branch and 735 install it on your system. 736 737 Prior to this date, building a current universe on 8-stable system from 738 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 739 error in the first kernel build phase. A new config on those old 740 systems will fix that problem for older versions of -current. 741 74220101228: 743 The TCP stack has been modified to allow Khelp modules to interact with 744 it via helper hook points and store per-connection data in the TCP 745 control block. Bump __FreeBSD_version to 900029. User space tools that 746 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 747 be recompiled. 748 74920101114: 750 Generic IEEE 802.3 annex 31B full duplex flow control support has been 751 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 752 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 753 to take advantage of it instead of using custom implementations. This 754 means that these drivers now no longer unconditionally advertise 755 support for flow control but only do so if flow control is a selected 756 media option. This was implemented in the generic support that way in 757 order to allow flow control to be switched on and off via ifconfig(8) 758 with the PHY specific default to typically off in order to protect 759 from unwanted effects. Consequently, if you used flow control with 760 one of the above mentioned drivers you now need to explicitly enable 761 it, for example via: 762 ifconfig bge0 media auto mediaopt flowcontrol 763 764 Along with the above mentioned changes generic support for setting 765 1000baseT master mode also has been added and brgphy(4), ciphy(4), 766 e1000phy(4) as well as ip1000phy(4) have been converted to take 767 advantage of it. This means that these drivers now no longer take the 768 link0 parameter for selecting master mode but the master media option 769 has to be used instead, for example like in the following: 770 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 771 772 Selection of master mode now is also available with all other PHY 773 drivers supporting 1000baseT. 774 77520101111: 776 The TCP stack has received a significant update to add support for 777 modularised congestion control and generally improve the clarity of 778 congestion control decisions. Bump __FreeBSD_version to 900025. User 779 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 780 sockstat) need to be recompiled. 781 78220101002: 783 The man(1) utility has been replaced by a new version that no longer 784 uses /etc/manpath.config. Please consult man.conf(5) for how to 785 migrate local entries to the new format. 786 78720100928: 788 The copyright strings printed by login(1) and sshd(8) at the time of a 789 new connection have been removed to follow other operating systems and 790 upstream sshd. 791 79220100915: 793 A workaround for a fixed ld bug has been removed in kernel code, 794 so make sure that your system ld is built from sources after 795 revision 210245 from 2010-07-19 (r211583 if building head kernel 796 on stable/8, r211584 for stable/7; both from 2010-08-21). 797 A symptom of incorrect ld version is different addresses for 798 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 799 80020100913: 801 The $ipv6_prefer variable in rc.conf(5) has been split into 802 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 803 804 The $ip6addrctl_policy is a variable to choose a pre-defined 805 address selection policy set by ip6addrctl(8). A value 806 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 807 default is "AUTO". 808 809 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 810 flag (see an entry of 20090926) is set on an interface with no 811 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 812 security reason. If you want IPv6 link-local address on all 813 interfaces by default, set this to "YES". 814 815 The old ipv6_prefer="YES" is equivalent to 816 ipv6_activate_all_interfaces="YES" and 817 ip6addrctl_policy="ipv6_prefer". 818 81920100913: 820 DTrace has grown support for userland tracing. Due to this, DTrace is 821 now i386 and amd64 only. 822 dtruss(1) is now installed by default on those systems and a new 823 kernel module is needed for userland tracing: fasttrap. 824 No changes to your kernel config file are necessary to enable 825 userland tracing, but you might consider adding 'STRIP=' and 826 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 827 to have informative userland stack traces in DTrace (ustack). 828 82920100725: 830 The acpi_aiboost(4) driver has been removed in favor of the new 831 aibs(4) driver. You should update your kernel configuration file. 832 83320100722: 834 BSD grep has been imported to the base system and it is built by 835 default. It is completely BSD licensed, highly GNU-compatible, uses 836 less memory than its GNU counterpart and has a small codebase. 837 However, it is slower than its GNU counterpart, which is mostly 838 noticeable for larger searches, for smaller ones it is measurable 839 but not significant. The reason is complex, the most important factor 840 is that we lack a modern and efficient regex library and GNU 841 overcomes this by optimizing the searches internally. Future work 842 on improving the regex performance is planned, for the meantime, 843 users that need better performance, can build GNU grep instead by 844 setting the WITH_GNU_GREP knob. 845 84620100713: 847 Due to the import of powerpc64 support, all existing powerpc kernel 848 configuration files must be updated with a machine directive like this: 849 machine powerpc powerpc 850 851 In addition, an updated config(8) is required to build powerpc kernels 852 after this change. 853 85420100713: 855 A new version of ZFS (version 15) has been merged to -HEAD. 856 This version uses a python library for the following subcommands: 857 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 858 For full functionality of these commands the following port must 859 be installed: sysutils/py-zfs 860 86120100429: 862 'vm_page's are now hashed by physical address to an array of mutexes. 863 Currently this is only used to serialize access to hold_count. Over 864 time the page queue mutex will be peeled away. This changes the size 865 of pmap on every architecture. And requires all callers of vm_page_hold 866 and vm_page_unhold to be updated. 867 86820100402: 869 WITH_CTF can now be specified in src.conf (not recommended, there 870 are some problems with static executables), make.conf (would also 871 affect ports which do not use GNU make and do not override the 872 compile targets) or in the kernel config (via "makeoptions 873 WITH_CTF=yes"). 874 When WITH_CTF was specified there before this was silently ignored, 875 so make sure that WITH_CTF is not used in places which could lead 876 to unwanted behavior. 877 87820100311: 879 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 880 to allow 32-bit compatibility on non-x86 platforms. All kernel 881 configurations on amd64 and ia64 platforms using these options must 882 be modified accordingly. 883 88420100113: 885 The utmp user accounting database has been replaced with utmpx, 886 the user accounting interface standardized by POSIX. 887 Unfortunately the semantics of utmp and utmpx don't match, 888 making it practically impossible to support both interfaces. 889 The user accounting database is used by tools like finger(1), 890 last(1), talk(1), w(1) and ac(8). 891 892 All applications in the base system use utmpx. This means only 893 local binaries (e.g. from the ports tree) may still use these 894 utmp database files. These applications must be rebuilt to make 895 use of utmpx. 896 897 After the system has been upgraded, it is safe to remove the old 898 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 899 assuming their contents is of no importance anymore. Old wtmp 900 databases can only be used by last(1) and ac(8) after they have 901 been converted to the new format using wtmpcvt(1). 902 90320100108: 904 Introduce the kernel thread "deadlock resolver" (which can be enabled 905 via the DEADLKRES option, see NOTES for more details) and the 906 sleepq_type() function for sleepqueues. 907 90820091202: 909 The rc.firewall and rc.firewall6 were unified, and 910 rc.firewall6 and rc.d/ip6fw were removed. 911 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 912 variables are obsoleted. Instead, the following new rc 913 variables are added to rc.d/ipfw: 914 915 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 916 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 917 firewall_simple_onet_ipv6, firewall_trusted_ipv6 918 919 The meanings correspond to the relevant IPv4 variables. 920 92120091125: 922 8.0-RELEASE. 923 92420091113: 925 The default terminal emulation for syscons(4) has been changed 926 from cons25 to xterm on all platforms except pc98. This means 927 that the /etc/ttys file needs to be updated to ensure correct 928 operation of applications on the console. 929 930 The terminal emulation style can be toggled per window by using 931 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 932 options can be used to change the compile-time default back to 933 cons25. 934 935 To prevent graphical artifacts, make sure the TERM environment 936 variable is set to match the terminal emulation that is being 937 performed by syscons(4). 938 93920091109: 940 The layout of the structure ieee80211req_scan_result has changed. 941 Applications that require wireless scan results (e.g. ifconfig(8)) 942 from net80211 need to be recompiled. 943 944 Applications such as wpa_supplicant(8) may require a full world 945 build without using NO_CLEAN in order to get synchronized with the 946 new structure. 947 94820091025: 949 The iwn(4) driver has been updated to support the 5000 and 5150 series. 950 There's one kernel module for each firmware. Adding "device iwnfw" 951 to the kernel configuration file means including all three firmware 952 images inside the kernel. If you want to include just the one for 953 your wireless card, use the devices iwn4965fw, iwn5000fw or 954 iwn5150fw. 955 95620090926: 957 The rc.d/network_ipv6, IPv6 configuration script has been integrated 958 into rc.d/netif. The changes are the following: 959 960 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 961 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 962 Note that both variables need the "inet6" keyword at the head. 963 964 Do not set $ipv6_network_interfaces manually if you do not 965 understand what you are doing. It is not needed in most cases. 966 967 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 968 they are obsolete. 969 970 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 971 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 972 973 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 974 all configured interfaces have "inet6 accept_rtadv" in the 975 $ifconfig_IF_ipv6. These are for backward compatibility. 976 977 3. A new variable $ipv6_prefer has been added. If NO, IPv6 978 functionality of interfaces with no corresponding 979 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 980 and the default address selection policy of ip6addrctl(8) 981 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 982 Note that if you want to configure IPv6 functionality on the 983 disabled interfaces after boot, first you need to clear the flag by 984 using ifconfig(8) like: 985 986 ifconfig em0 inet6 -ifdisabled 987 988 If YES, the default address selection policy is set as 989 IPv6-preferred. 990 991 The default value of $ipv6_prefer is NO. 992 993 4. If your system need to receive Router Advertisement messages, 994 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 995 scripts automatically invoke rtsol(8) when the interface becomes 996 UP. The Router Advertisement messages are used for SLAAC 997 (State-Less Address AutoConfiguration). 998 99920090922: 1000 802.11s D3.03 support was committed. This is incompatible with the 1001 previous code, which was based on D3.0. 1002 100320090912: 1004 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1005 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1006 control whether accepting Router Advertisement messages or not. 1007 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1008 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1009 The ifconfig(8) utility now supports these flags. 1010 101120090910: 1012 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1013 mount(8) and -a option for df(1) to see them. 1014 101520090825: 1016 The old tunable hw.bus.devctl_disable has been superseded by 1017 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1018 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1019 is 1000. 1020 102120090813: 1022 Remove the option STOP_NMI. The default action is now to use NMI only 1023 for KDB via the newly introduced function stop_cpus_hard() and 1024 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1025 102620090803: 1027 The stable/8 branch created in subversion. This corresponds to the 1028 RELENG_8 branch in CVS. 1029 103020090719: 1031 Bump the shared library version numbers for all libraries that do not 1032 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1033 __FreeBSD_version to 800105. 1034 103520090714: 1036 Due to changes in the implementation of virtual network stack support, 1037 all network-related kernel modules must be recompiled. As this change 1038 breaks the ABI, bump __FreeBSD_version to 800104. 1039 104020090713: 1041 The TOE interface to the TCP syncache has been modified to remove 1042 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1043 The cxgb driver is the only TOE consumer affected by this change, and 1044 needs to be recompiled along with the kernel. As this change breaks 1045 the ABI, bump __FreeBSD_version to 800103. 1046 104720090712: 1048 Padding has been added to struct tcpcb, sackhint and tcpstat in 1049 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1050 maintaining the ABI. However, this change breaks the ABI, so bump 1051 __FreeBSD_version to 800102. User space tools that rely on the size of 1052 any of these structs (e.g. sockstat) need to be recompiled. 1053 105420090630: 1055 The NFS_LEGACYRPC option has been removed along with the old kernel 1056 RPC implementation that this option selected. Kernel configurations 1057 may need to be adjusted. 1058 105920090629: 1060 The network interface device nodes at /dev/net/<interface> have been 1061 removed. All ioctl operations can be performed the normal way using 1062 routing sockets. The kqueue functionality can generally be replaced 1063 with routing sockets. 1064 106520090628: 1066 The documentation from the FreeBSD Documentation Project (Handbook, 1067 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1068 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1069 107020090624: 1071 The ABI of various structures related to the SYSV IPC API have been 1072 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1073 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1074 800100. 1075 107620090622: 1077 Layout of struct vnet has changed as routing related variables were 1078 moved to their own Vimage module. Modules need to be recompiled. Bump 1079 __FreeBSD_version to 800099. 1080 108120090619: 1082 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1083 respectively. As long as no more than 16 groups per process are used, 1084 no changes should be visible. When more than 16 groups are used, old 1085 binaries may fail if they call getgroups() or getgrouplist() with 1086 statically sized storage. Recompiling will work around this, but 1087 applications should be modified to use dynamically allocated storage 1088 for group arrays as POSIX.1-2008 does not cap an implementation's 1089 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1090 1091 NFS and portalfs mounts may also be affected as the list of groups is 1092 truncated to 16. Users of NFS who use more than 16 groups, should 1093 take care that negative group permissions are not used on the exported 1094 file systems as they will not be reliable unless a GSSAPI based 1095 authentication method is used. 1096 109720090616: 1098 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1099 option compiles in the support for adaptive spinning for lockmgrs 1100 which want to enable it. The lockinit() function now accepts the flag 1101 LK_ADAPTIVE in order to make the lock object subject to adaptive 1102 spinning when both held in write and read mode. 1103 110420090613: 1105 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1106 changed. User applications that use this ioctl need to be rebuilt. 1107 110820090611: 1109 The layout of struct thread has changed. Kernel and modules need to 1110 be rebuilt. 1111 111220090608: 1113 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1114 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1115 111620090602: 1117 window(1) has been removed from the base system. It can now be 1118 installed from ports. The port is called misc/window. 1119 112020090601: 1121 The way we are storing and accessing `routing table' entries has 1122 changed. Programs reading the FIB, like netstat, need to be 1123 re-compiled. 1124 112520090601: 1126 A new netisr implementation has been added for FreeBSD 8. Network 1127 file system modules, such as igmp, ipdivert, and others, should be 1128 rebuilt. 1129 Bump __FreeBSD_version to 800096. 1130 113120090530: 1132 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1133 more valid. 1134 113520090530: 1136 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1137 Bump __FreeBSD_version to 800094. 1138 113920090529: 1140 Add mnt_xflag field to 'struct mount'. File system modules need to be 1141 rebuilt. 1142 Bump __FreeBSD_version to 800093. 1143 114420090528: 1145 The compiling option ADAPTIVE_SX has been retired while it has been 1146 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1147 The KPI for sx_init_flags() changes as accepting flags: 1148 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1149 been introduced in order to handle the reversed logic. 1150 Bump __FreeBSD_version to 800092. 1151 115220090527: 1153 Add support for hierarchical jails. Remove global securelevel. 1154 Bump __FreeBSD_version to 800091. 1155 115620090523: 1157 The layout of struct vnet_net has changed, therefore modules 1158 need to be rebuilt. 1159 Bump __FreeBSD_version to 800090. 1160 116120090523: 1162 The newly imported zic(8) produces a new format in the output. Please 1163 run tzsetup(8) to install the newly created data to /etc/localtime. 1164 116520090520: 1166 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1167 hw.usb.* and is now consistent again with previous releases. 1168 116920090520: 1170 802.11 monitor mode support was revised and driver api's were changed. 1171 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1172 of DLT_IEEE802_11. No user-visible data structures were changed but 1173 applications that use DLT_IEEE802_11 may require changes. 1174 Bump __FreeBSD_version to 800088. 1175 117620090430: 1177 The layout of the following structs has changed: sysctl_oid, 1178 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1179 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1180 panics may be experienced. World rebuild is required for 1181 correctly checking networking state from userland. 1182 Bump __FreeBSD_version to 800085. 1183 118420090429: 1185 MLDv2 and Source-Specific Multicast (SSM) have been merged 1186 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1187 The implementation of SSM within FreeBSD's IPv6 stack closely 1188 follows the IPv4 implementation. 1189 1190 For kernel developers: 1191 1192 * The most important changes are that the ip6_output() and 1193 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1194 and this lock has been downgraded to a non-recursive mutex. 1195 1196 * As with the changes to the IPv4 stack to support SSM, filtering 1197 of inbound multicast traffic must now be performed by transport 1198 protocols within the IPv6 stack. This does not apply to TCP and 1199 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1200 1201 * The KPIs used by IPv6 multicast are similar to those used by 1202 the IPv4 stack, with the following differences: 1203 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1204 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1205 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1206 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1207 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1208 for MLDv1 have an additional 'timer' argument which is used to 1209 jitter the initial membership report for the solicited-node 1210 multicast membership on-link. 1211 * This is not strictly needed for MLDv2, which already jitters 1212 its report transmissions. However, the 'timer' argument is 1213 preserved in case MLDv1 is active on the interface. 1214 1215 * The KAME linked-list based IPv6 membership implementation has 1216 been refactored to use a vector similar to that used by the IPv4 1217 stack. 1218 Code which maintains a list of its own multicast memberships 1219 internally, e.g. carp, has been updated to reflect the new 1220 semantics. 1221 1222 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1223 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1224 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1225 implementation constraint which needs to be addressed in HEAD. 1226 1227 For application developers: 1228 1229 * The changes are broadly similar to those made for the IPv4 1230 stack. 1231 1232 * The use of IPv4 and IPv6 multicast socket options on the same 1233 socket, using mapped addresses, HAS NOT been tested or supported. 1234 1235 * There are a number of issues with the implementation of various 1236 IPv6 multicast APIs which need to be resolved in the API surface 1237 before the implementation is fully compatible with KAME userland 1238 use, and these are mostly to do with interface index treatment. 1239 1240 * The literature available discusses the use of either the delta / ASM 1241 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1242 using setsourcefilter(3)/getsourcefilter(3). For more information 1243 please refer to RFC 3768, 'Socket Interface Extensions for 1244 Multicast Source Filters'. 1245 1246 * Applications which use the published RFC 3678 APIs should be fine. 1247 1248 For systems administrators: 1249 1250 * The mtest(8) utility has been refactored to support IPv6, in 1251 addition to IPv4. Interface addresses are no longer accepted 1252 as arguments, their names must be used instead. The utility 1253 will map the interface name to its first IPv4 address as 1254 returned by getifaddrs(3). 1255 1256 * The ifmcstat(8) utility has also been updated to print the MLDv2 1257 endpoint state and source filter lists via sysctl(3). 1258 1259 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1260 loopback of IPv6 multicast datagrams by default; it defaults to 1 1261 to preserve the existing behaviour. Disabling multicast loopback is 1262 recommended for optimal system performance. 1263 1264 * The IPv6 MROUTING code has been changed to examine this sysctl 1265 instead of attempting to perform a group lookup before looping 1266 back forwarded datagrams. 1267 1268 Bump __FreeBSD_version to 800084. 1269 127020090422: 1271 Implement low-level Bluetooth HCI API. 1272 Bump __FreeBSD_version to 800083. 1273 127420090419: 1275 The layout of struct malloc_type, used by modules to register new 1276 memory allocation types, has changed. Most modules will need to 1277 be rebuilt or panics may be experienced. 1278 Bump __FreeBSD_version to 800081. 1279 128020090415: 1281 Anticipate overflowing inp_flags - add inp_flags2. 1282 This changes most offsets in inpcb, so checking v4 connection 1283 state will require a world rebuild. 1284 Bump __FreeBSD_version to 800080. 1285 128620090415: 1287 Add an llentry to struct route and struct route_in6. Modules 1288 embedding a struct route will need to be recompiled. 1289 Bump __FreeBSD_version to 800079. 1290 129120090414: 1292 The size of rt_metrics_lite and by extension rtentry has changed. 1293 Networking administration apps will need to be recompiled. 1294 The route command now supports show as an alias for get, weighting 1295 of routes, sticky and nostick flags to alter the behavior of stateful 1296 load balancing. 1297 Bump __FreeBSD_version to 800078. 1298 129920090408: 1300 Do not use Giant for kbdmux(4) locking. This is wrong and 1301 apparently causing more problems than it solves. This will 1302 re-open the issue where interrupt handlers may race with 1303 kbdmux(4) in polling mode. Typical symptoms include (but 1304 not limited to) duplicated and/or missing characters when 1305 low level console functions (such as gets) are used while 1306 interrupts are enabled (for example geli password prompt, 1307 mountroot prompt etc.). Disabling kbdmux(4) may help. 1308 130920090407: 1310 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1311 kernel modules referencing any of the above need to be recompiled. 1312 Bump __FreeBSD_version to 800075. 1313 131420090320: 1315 GEOM_PART has become the default partition slicer for storage devices, 1316 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1317 introduces some changes: 1318 1319 MSDOS/EBR: the devices created from MSDOS extended partition entries 1320 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1321 to devices with offset-based names. fstabs may need to be modified. 1322 1323 BSD: the "geometry does not match label" warning is harmless in most 1324 cases but it points to problems in file system misalignment with 1325 disk geometry. The "c" partition is now implicit, covers the whole 1326 top-level drive and cannot be (mis)used by users. 1327 1328 General: Kernel dumps are now not allowed to be written to devices 1329 whose partition types indicate they are meant to be used for file 1330 systems (or, in case of MSDOS partitions, as something else than 1331 the "386BSD" type). 1332 1333 Most of these changes date approximately from 200812. 1334 133520090319: 1336 The uscanner(4) driver has been removed from the kernel. This follows 1337 Linux removing theirs in 2.6 and making libusb the default interface 1338 (supported by sane). 1339 134020090319: 1341 The multicast forwarding code has been cleaned up. netstat(1) 1342 only relies on KVM now for printing bandwidth upcall meters. 1343 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1344 ip6_mroute_mod respectively. The config(5) options for statically 1345 compiling this code remain the same, i.e. 'options MROUTING'. 1346 134720090315: 1348 Support for the IFF_NEEDSGIANT network interface flag has been 1349 removed, which means that non-MPSAFE network device drivers are no 1350 longer supported. In particular, if_ar, if_sr, and network device 1351 drivers from the old (legacy) USB stack can no longer be built or 1352 used. 1353 135420090313: 1355 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1356 a bunch of new language catalog files have also been added. 1357 This means that some common libc messages are now localized and 1358 they depend on the LC_MESSAGES environmental variable. 1359 136020090313: 1361 The k8temp(4) driver has been renamed to amdtemp(4) since 1362 support for Family 10 and Family 11 CPU families was added. 1363 136420090309: 1365 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1366 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1367 1368 For kernel developers, the most important changes are that the 1369 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1370 and this lock has been downgraded to a non-recursive mutex. 1371 1372 Transport protocols (UDP, Raw IP) are now responsible for filtering 1373 inbound multicast traffic according to group membership and source 1374 filters. The imo_multicast_filter() KPI exists for this purpose. 1375 Transports which do not use multicast (SCTP, TCP) already reject 1376 multicast by default. Forwarding and receive performance may improve 1377 as a mutex acquisition is no longer needed in the ip_input() 1378 low-level input path. in_addmulti() and in_delmulti() are shimmed 1379 to new KPIs which exist to support SSM in-kernel. 1380 1381 For application developers, it is recommended that loopback of 1382 multicast datagrams be disabled for best performance, as this 1383 will still cause the lock to be taken for each looped-back 1384 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1385 be tuned to 0 to disable loopback by default; it defaults to 1 1386 to preserve the existing behaviour. 1387 1388 For systems administrators, to obtain best performance with 1389 multicast reception and multiple groups, it is always recommended 1390 that a card with a suitably precise hash filter is used. Hash 1391 collisions will still result in the lock being taken within the 1392 transport protocol input path to check group membership. 1393 1394 If deploying FreeBSD in an environment with IGMP snooping switches, 1395 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1396 enabled; this forces 224.0.0.0/24 group membership to be announced 1397 via IGMP. 1398 1399 The size of 'struct igmpstat' has changed; netstat needs to be 1400 recompiled to reflect this. 1401 Bump __FreeBSD_version to 800070. 1402 140320090309: 1404 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1405 updated to use it. This requires a buildworld/installworld in order to 1406 update the library and dependencies (usbconfig, etc). Its advisable to 1407 rebuild all ports which uses libusb. More specific directions are given 1408 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1409 libusb are no longer required and can be removed. 1410 141120090302: 1412 A workaround is committed to allow the creation of System V shared 1413 memory segment of size > 2 GB on the 64-bit architectures. 1414 Due to a limitation of the existing ABI, the shm_segsz member 1415 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1416 wrong for large segments. Note that limits must be explicitly 1417 raised to allow such segments to be created. 1418 141920090301: 1420 The layout of struct ifnet has changed, requiring a rebuild of all 1421 network device driver modules. 1422 142320090227: 1424 The /dev handling for the new USB stack has changed, a 1425 buildworld/installworld is required for libusb20. 1426 142720090223: 1428 The new USB2 stack has now been permanently moved in and all kernel and 1429 module names reverted to their previous values (eg, usb, ehci, ohci, 1430 ums, ...). The old usb stack can be compiled in by prefixing the name 1431 with the letter 'o', the old usb modules have been removed. 1432 Updating entry 20090216 for xorg and 20090215 for libmap may still 1433 apply. 1434 143520090217: 1436 The rc.conf(5) option if_up_delay has been renamed to 1437 defaultroute_delay to better reflect its purpose. If you have 1438 customized this setting in /etc/rc.conf you need to update it to 1439 use the new name. 1440 144120090216: 1442 xorg 7.4 wants to configure its input devices via hald which does not 1443 yet work with USB2. If the keyboard/mouse does not work in xorg then 1444 add 1445 Option "AllowEmptyInput" "off" 1446 to your ServerLayout section. This will cause X to use the configured 1447 kbd and mouse sections from your xorg.conf. 1448 144920090215: 1450 The GENERIC kernels for all architectures now default to the new USB2 1451 stack. No kernel config options or code have been removed so if a 1452 problem arises please report it and optionally revert to the old USB 1453 stack. If you are loading USB kernel modules or have a custom kernel 1454 that includes GENERIC then ensure that usb names are also changed over, 1455 eg uftdi -> usb2_serial_ftdi. 1456 1457 Older programs linked against the ports libusb 0.1 need to be 1458 redirected to the new stack's libusb20. /etc/libmap.conf can 1459 be used for this: 1460 # Map old usb library to new one for usb2 stack 1461 libusb-0.1.so.8 libusb20.so.1 1462 146320090209: 1464 All USB ethernet devices now attach as interfaces under the name ueN 1465 (eg. ue0). This is to provide a predictable name as vendors often 1466 change usb chipsets in a product without notice. 1467 146820090203: 1469 The ichsmb(4) driver has been changed to require SMBus slave 1470 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1471 All of the other SMBus controller drivers require left-justified 1472 slave addresses, so this change makes all the drivers provide the 1473 same interface. 1474 147520090201: 1476 INET6 statistics (struct ip6stat) was updated. 1477 netstat(1) needs to be recompiled. 1478 147920090119: 1480 NTFS has been removed from GENERIC kernel on amd64 to match 1481 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1482 will load ntfs.ko module automatically when NTFS support is 1483 actually needed, unless ntfs.ko is not installed or security 1484 level prohibits loading kernel modules. If either is the case, 1485 "options NTFS" has to be added into kernel config. 1486 148720090115: 1488 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1489 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1490 800061. User space tools that rely on the size of struct tcpcb in 1491 tcp_var.h (e.g. sockstat) need to be recompiled. 1492 149320081225: 1494 ng_tty(4) module updated to match the new TTY subsystem. 1495 Due to API change, user-level applications must be updated. 1496 New API support added to mpd5 CVS and expected to be present 1497 in next mpd5.3 release. 1498 149920081219: 1500 With __FreeBSD_version 800060 the makefs tool is part of 1501 the base system (it was a port). 1502 150320081216: 1504 The afdata and ifnet locks have been changed from mutexes to 1505 rwlocks, network modules will need to be re-compiled. 1506 150720081214: 1508 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1509 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1510 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1511 architecture and 40 bytes on 64-bit architecture. The userland 1512 applications "arp" and "ndp" have been updated accordingly. 1513 The output from "netstat -r" shows only routing entries and 1514 none of the L2 information. 1515 151620081130: 1517 __FreeBSD_version 800057 marks the switchover from the 1518 binary ath hal to source code. Users must add the line: 1519 1520 options AH_SUPPORT_AR5416 1521 1522 to their kernel config files when specifying: 1523 1524 device ath_hal 1525 1526 The ath_hal module no longer exists; the code is now compiled 1527 together with the driver in the ath module. It is now 1528 possible to tailor chip support (i.e. reduce the set of chips 1529 and thereby the code size); consult ath_hal(4) for details. 1530 153120081121: 1532 __FreeBSD_version 800054 adds memory barriers to 1533 <machine/atomic.h>, new interfaces to ifnet to facilitate 1534 multiple hardware transmit queues for cards that support 1535 them, and a lock-less ring-buffer implementation to 1536 enable drivers to more efficiently manage queueing of 1537 packets. 1538 153920081117: 1540 A new version of ZFS (version 13) has been merged to -HEAD. 1541 This version has zpool attribute "listsnapshots" off by 1542 default, which means "zfs list" does not show snapshots, 1543 and is the same as Solaris behavior. 1544 154520081028: 1546 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1547 154820081009: 1549 The uhci, ohci, ehci and slhci USB Host controller drivers have 1550 been put into separate modules. If you load the usb module 1551 separately through loader.conf you will need to load the 1552 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1553 controller add the following to loader.conf: 1554 1555 uhci_load="YES" 1556 ehci_load="YES" 1557 155820081009: 1559 The ABI used by the PMC toolset has changed. Please keep 1560 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1561 sync. 1562 156320081009: 1564 atapci kernel module now includes only generic PCI ATA 1565 driver. AHCI driver moved to ataahci kernel module. 1566 All vendor-specific code moved into separate kernel modules: 1567 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1568 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1569 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1570 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1571 157220080820: 1573 The TTY subsystem of the kernel has been replaced by a new 1574 implementation, which provides better scalability and an 1575 improved driver model. Most common drivers have been migrated to 1576 the new TTY subsystem, while others have not. The following 1577 drivers have not yet been ported to the new TTY layer: 1578 1579 PCI/ISA: 1580 cy, digi, rc, rp, sio 1581 1582 USB: 1583 ubser, ucycom 1584 1585 Line disciplines: 1586 ng_h4, ng_tty, ppp, sl, snp 1587 1588 Adding these drivers to your kernel configuration file shall 1589 cause compilation to fail. 1590 159120080818: 1592 ntpd has been upgraded to 4.2.4p5. 1593 159420080801: 1595 OpenSSH has been upgraded to 5.1p1. 1596 1597 For many years, FreeBSD's version of OpenSSH preferred DSA 1598 over RSA for host and user authentication keys. With this 1599 upgrade, we've switched to the vendor's default of RSA over 1600 DSA. This may cause upgraded clients to warn about unknown 1601 host keys even for previously known hosts. Users should 1602 follow the usual procedure for verifying host keys before 1603 accepting the RSA key. 1604 1605 This can be circumvented by setting the "HostKeyAlgorithms" 1606 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1607 command line. 1608 1609 Please note that the sequence of keys offered for 1610 authentication has been changed as well. You may want to 1611 specify IdentityFile in a different order to revert this 1612 behavior. 1613 161420080713: 1615 The sio(4) driver has been removed from the i386 and amd64 1616 kernel configuration files. This means uart(4) is now the 1617 default serial port driver on those platforms as well. 1618 1619 To prevent collisions with the sio(4) driver, the uart(4) driver 1620 uses different names for its device nodes. This means the 1621 onboard serial port will now most likely be called "ttyu0" 1622 instead of "ttyd0". You may need to reconfigure applications to 1623 use the new device names. 1624 1625 When using the serial port as a boot console, be sure to update 1626 /boot/device.hints and /etc/ttys before booting the new kernel. 1627 If you forget to do so, you can still manually specify the hints 1628 at the loader prompt: 1629 1630 set hint.uart.0.at="isa" 1631 set hint.uart.0.port="0x3F8" 1632 set hint.uart.0.flags="0x10" 1633 set hint.uart.0.irq="4" 1634 boot -s 1635 163620080609: 1637 The gpt(8) utility has been removed. Use gpart(8) to partition 1638 disks instead. 1639 164020080603: 1641 The version that Linuxulator emulates was changed from 2.4.2 1642 to 2.6.16. If you experience any problems with Linux binaries 1643 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1644 if it fixes the problem contact emulation mailing list. 1645 164620080525: 1647 ISDN4BSD (I4B) was removed from the src tree. You may need to 1648 update a your kernel configuration and remove relevant entries. 1649 165020080509: 1651 I have checked in code to support multiple routing tables. 1652 See the man pages setfib(1) and setfib(2). 1653 This is a hopefully backwards compatible version, 1654 but to make use of it you need to compile your kernel 1655 with options ROUTETABLES=2 (or more up to 16). 1656 165720080420: 1658 The 802.11 wireless support was redone to enable multi-bss 1659 operation on devices that are capable. The underlying device 1660 is no longer used directly but instead wlanX devices are 1661 cloned with ifconfig. This requires changes to rc.conf files. 1662 For example, change: 1663 ifconfig_ath0="WPA DHCP" 1664 to 1665 wlans_ath0=wlan0 1666 ifconfig_wlan0="WPA DHCP" 1667 see rc.conf(5) for more details. In addition, mergemaster of 1668 /etc/rc.d is highly recommended. Simultaneous update of userland 1669 and kernel wouldn't hurt either. 1670 1671 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1672 modules were merged into the base wlan module. All references 1673 to these modules (e.g. in kernel config files) must be removed. 1674 167520080408: 1676 psm(4) has gained write(2) support in native operation level. 1677 Arbitrary commands can be written to /dev/psm%d and status can 1678 be read back from it. Therefore, an application is responsible 1679 for status validation and error recovery. It is a no-op in 1680 other operation levels. 1681 168220080312: 1683 Support for KSE threading has been removed from the kernel. To 1684 run legacy applications linked against KSE libmap.conf may 1685 be used. The following libmap.conf may be used to ensure 1686 compatibility with any prior release: 1687 1688 libpthread.so.1 libthr.so.1 1689 libpthread.so.2 libthr.so.2 1690 libkse.so.3 libthr.so.3 1691 169220080301: 1693 The layout of struct vmspace has changed. This affects libkvm 1694 and any executables that link against libkvm and use the 1695 kvm_getprocs() function. In particular, but not exclusively, 1696 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1697 The effects are minimal, but it's advisable to upgrade world 1698 nonetheless. 1699 170020080229: 1701 The latest em driver no longer has support in it for the 1702 82575 adapter, this is now moved to the igb driver. The 1703 split was done to make new features that are incompatible 1704 with older hardware easier to do. 1705 170620080220: 1707 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1708 likewise the kernel option is now GEOM_LINUX_LVM. 1709 171020080211: 1711 The default NFS mount mode has changed from UDP to TCP for 1712 increased reliability. If you rely on (insecurely) NFS 1713 mounting across a firewall you may need to update your 1714 firewall rules. 1715 171620080208: 1717 Belatedly note the addition of m_collapse for compacting 1718 mbuf chains. 1719 172020080126: 1721 The fts(3) structures have been changed to use adequate 1722 integer types for their members and so to be able to cope 1723 with huge file trees. The old fts(3) ABI is preserved 1724 through symbol versioning in libc, so third-party binaries 1725 using fts(3) should still work, although they will not take 1726 advantage of the extended types. At the same time, some 1727 third-party software might fail to build after this change 1728 due to unportable assumptions made in its source code about 1729 fts(3) structure members. Such software should be fixed 1730 by its vendor or, in the worst case, in the ports tree. 1731 FreeBSD_version 800015 marks this change for the unlikely 1732 case that a portable fix is impossible. 1733 173420080123: 1735 To upgrade to -current after this date, you must be running 1736 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1737 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1738 173920071128: 1740 The ADAPTIVE_GIANT kernel option has been retired because its 1741 functionality is the default now. 1742 174320071118: 1744 The AT keyboard emulation of sunkbd(4) has been turned on 1745 by default. In order to make the special symbols of the Sun 1746 keyboards driven by sunkbd(4) work under X these now have 1747 to be configured the same way as Sun USB keyboards driven 1748 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1749 1750 Option "XkbLayout" "us" 1751 Option "XkbRules" "xorg" 1752 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1753 175420071024: 1755 It has been decided that it is desirable to provide ABI 1756 backwards compatibility to the FreeBSD 4/5/6 versions of the 1757 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1758 broken with the introduction of PCI domain support (see the 1759 20070930 entry). Unfortunately, this required the ABI of 1760 PCIOCGETCONF to be broken again in order to be able to 1761 provide backwards compatibility to the old version of that 1762 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1763 again. As for prominent ports this affects neither pciutils 1764 nor xorg-server this time, the hal port needs to be rebuilt 1765 however. 1766 176720071020: 1768 The misnamed kthread_create() and friends have been renamed 1769 to kproc_create() etc. Many of the callers already 1770 used kproc_start().. 1771 I will return kthread_create() and friends in a while 1772 with implementations that actually create threads, not procs. 1773 Renaming corresponds with version 800002. 1774 177520071010: 1776 RELENG_7 branched. 1777 1778COMMON ITEMS: 1779 1780 General Notes 1781 ------------- 1782 Avoid using make -j when upgrading. While generally safe, there are 1783 sometimes problems using -j to upgrade. If your upgrade fails with 1784 -j, please try again without -j. From time to time in the past there 1785 have been problems using -j with buildworld and/or installworld. This 1786 is especially true when upgrading between "distant" versions (eg one 1787 that cross a major release boundary or several minor releases, or when 1788 several months have passed on the -current branch). 1789 1790 Sometimes, obscure build problems are the result of environment 1791 poisoning. This can happen because the make utility reads its 1792 environment when searching for values for global variables. To run 1793 your build attempts in an "environmental clean room", prefix all make 1794 commands with 'env -i '. See the env(1) manual page for more details. 1795 1796 When upgrading from one major version to another it is generally best 1797 to upgrade to the latest code in the currently installed branch first, 1798 then do an upgrade to the new branch. This is the best-tested upgrade 1799 path, and has the highest probability of being successful. Please try 1800 this approach before reporting problems with a major version upgrade. 1801 1802 When upgrading a live system, having a root shell around before 1803 installing anything can help undo problems. Not having a root shell 1804 around can lead to problems if pam has changed too much from your 1805 starting point to allow continued authentication after the upgrade. 1806 1807 ZFS notes 1808 --------- 1809 When upgrading the boot ZFS pool to a new version, always follow 1810 these two steps: 1811 1812 1.) recompile and reinstall the ZFS boot loader and boot block 1813 (this is part of "make buildworld" and "make installworld") 1814 1815 2.) update the ZFS boot block on your boot drive 1816 1817 The following example updates the ZFS boot block on the first 1818 partition (freebsd-boot) of a GPT partitioned drive ad0: 1819 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1820 1821 Non-boot pools do not need these updates. 1822 1823 To build a kernel 1824 ----------------- 1825 If you are updating from a prior version of FreeBSD (even one just 1826 a few days old), you should follow this procedure. It is the most 1827 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1828 1829 make kernel-toolchain 1830 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1831 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1832 1833 To test a kernel once 1834 --------------------- 1835 If you just want to boot a kernel once (because you are not sure 1836 if it works, or if you want to boot a known bad kernel to provide 1837 debugging information) run 1838 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1839 nextboot -k testkernel 1840 1841 To just build a kernel when you know that it won't mess you up 1842 -------------------------------------------------------------- 1843 This assumes you are already running a CURRENT system. Replace 1844 ${arch} with the architecture of your machine (e.g. "i386", 1845 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1846 1847 cd src/sys/${arch}/conf 1848 config KERNEL_NAME_HERE 1849 cd ../compile/KERNEL_NAME_HERE 1850 make depend 1851 make 1852 make install 1853 1854 If this fails, go to the "To build a kernel" section. 1855 1856 To rebuild everything and install it on the current system. 1857 ----------------------------------------------------------- 1858 # Note: sometimes if you are running current you gotta do more than 1859 # is listed here if you are upgrading from a really old current. 1860 1861 <make sure you have good level 0 dumps> 1862 make buildworld 1863 make kernel KERNCONF=YOUR_KERNEL_HERE 1864 [1] 1865 <reboot in single user> [3] 1866 mergemaster -p [5] 1867 make installworld 1868 mergemaster -i [4] 1869 make delete-old [6] 1870 <reboot> 1871 1872 To cross-install current onto a separate partition 1873 -------------------------------------------------- 1874 # In this approach we use a separate partition to hold 1875 # current's root, 'usr', and 'var' directories. A partition 1876 # holding "/", "/usr" and "/var" should be about 2GB in 1877 # size. 1878 1879 <make sure you have good level 0 dumps> 1880 <boot into -stable> 1881 make buildworld 1882 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1883 <maybe newfs current's root partition> 1884 <mount current's root partition on directory ${CURRENT_ROOT}> 1885 make installworld DESTDIR=${CURRENT_ROOT} 1886 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1887 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1888 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1889 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1890 <reboot into current> 1891 <do a "native" rebuild/install as described in the previous section> 1892 <maybe install compatibility libraries from ports/misc/compat*> 1893 <reboot> 1894 1895 1896 To upgrade in-place from stable to current 1897 ---------------------------------------------- 1898 <make sure you have good level 0 dumps> 1899 make buildworld [9] 1900 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1901 [1] 1902 <reboot in single user> [3] 1903 mergemaster -p [5] 1904 make installworld 1905 mergemaster -i [4] 1906 make delete-old [6] 1907 <reboot> 1908 1909 Make sure that you've read the UPDATING file to understand the 1910 tweaks to various things you need. At this point in the life 1911 cycle of current, things change often and you are on your own 1912 to cope. The defaults can also change, so please read ALL of 1913 the UPDATING entries. 1914 1915 Also, if you are tracking -current, you must be subscribed to 1916 freebsd-current@freebsd.org. Make sure that before you update 1917 your sources that you have read and understood all the recent 1918 messages there. If in doubt, please track -stable which has 1919 much fewer pitfalls. 1920 1921 [1] If you have third party modules, such as vmware, you 1922 should disable them at this point so they don't crash your 1923 system on reboot. 1924 1925 [3] From the bootblocks, boot -s, and then do 1926 fsck -p 1927 mount -u / 1928 mount -a 1929 cd src 1930 adjkerntz -i # if CMOS is wall time 1931 Also, when doing a major release upgrade, it is required that 1932 you boot into single user mode to do the installworld. 1933 1934 [4] Note: This step is non-optional. Failure to do this step 1935 can result in a significant reduction in the functionality of the 1936 system. Attempting to do it by hand is not recommended and those 1937 that pursue this avenue should read this file carefully, as well 1938 as the archives of freebsd-current and freebsd-hackers mailing lists 1939 for potential gotchas. The -U option is also useful to consider. 1940 See mergemaster(8) for more information. 1941 1942 [5] Usually this step is a noop. However, from time to time 1943 you may need to do this if you get unknown user in the following 1944 step. It never hurts to do it all the time. You may need to 1945 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1946 install) after the buildworld before this step if you last updated 1947 from current before 20130425 or from -stable before 20130430. 1948 1949 [6] This only deletes old files and directories. Old libraries 1950 can be deleted by "make delete-old-libs", but you have to make 1951 sure that no program is using those libraries anymore. 1952 1953 [8] In order to have a kernel that can run the 4.x binaries needed to 1954 do an installworld, you must include the COMPAT_FREEBSD4 option in 1955 your kernel. Failure to do so may leave you with a system that is 1956 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1957 required to run the 5.x binaries on more recent kernels. And so on 1958 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1959 1960 Make sure that you merge any new devices from GENERIC since the 1961 last time you updated your kernel config file. 1962 1963 [9] When checking out sources, you must include the -P flag to have 1964 cvs prune empty directories. 1965 1966 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1967 "?=" instead of the "=" assignment operator, so that buildworld can 1968 override the CPUTYPE if it needs to. 1969 1970 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1971 not on the command line, or in /etc/make.conf. buildworld will 1972 warn if it is improperly defined. 1973FORMAT: 1974 1975This file contains a list, in reverse chronological order, of major 1976breakages in tracking -current. It is not guaranteed to be a complete 1977list of such breakages, and only contains entries since October 10, 2007. 1978If you need to see UPDATING entries from before that date, you will need 1979to fetch an UPDATING file from an older FreeBSD release. 1980 1981Copyright information: 1982 1983Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1984 1985Redistribution, publication, translation and use, with or without 1986modification, in full or in part, in any form or format of this 1987document are permitted without further permission from the author. 1988 1989THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1990IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1991WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1992DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1993INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1994(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1995SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1996HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1997STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1998IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1999POSSIBILITY OF SUCH DAMAGE. 2000 2001Contact Warner Losh if you have any questions about your use of 2002this document. 2003 2004$FreeBSD: head/UPDATING 255453 2013-09-10 17:26:09Z jmg $ 2005