UPDATING revision 296953
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 1420160316 p39 FreeBSD-SA-16:14.openssh-xauth 15 FreeBSD-SA-16:15.sysarch 16 17 Fix OpenSSH xauth(1) command injection. [SA-16:14] 18 Fix incorrect argument validation in sysarch(2). [SA-16:15] 19 2020160310 p38 FreeBSD-SA-16:13.bind 21 FreeBSD-SA-16:12.openssl [revised] 22 23 Fix multiple vulnerabilities of BIND. [SA-16:13] 24 25 Fix a regression with OpenSSL patch. [SA-16:12] 26 2720160303 p37 FreeBSD-SA-16:12.openssl 28 29 Fix multiple vulnerabilities of OpenSSL. 30 3120160130 p36 FreeBSD-SA-16:11.openssl 32 33 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 34 3520160127 p35 FreeBSD-SA-16:08.bind 36 FreeBSD-SA-16:09.ntp 37 FreeBSD-SA-16:10.linux 38 39 Fix BIND remote denial of service vulnerability. [SA-16:08] 40 41 Fix multiple vulnerabilities of ntp. [SA-16:09] 42 43 Fix Linux compatibility layer issetugid(2) system call 44 vulnerability. [SA-16:10] 45 4620160114 p34 FreeBSD-SA-16:07.openssh 47 48 Fix OpenSSH client information leak. [SA-16:07] 49 5020160114 p33 FreeBSD-EN-16:02.pf 51 FreeBSD-EN-16:03.yplib 52 FreeBSD-SA-16:01.sctp 53 FreeBSD-SA-16:02.ntp 54 FreeBSD-SA-16:03.linux 55 FreeBSD-SA-16:04.linux 56 FreeBSD-SA-16:05.tcp 57 FreeBSD-SA-16:06.bsnmpd 58 59 Fix pf(4) generating bad TCP checksums. [EN-16:02] 60 Fix infinite loop in YP/NIS client library. [EN-16:03] 61 Fix remote denial of service in SCTP. [SA-16:01] 62 Update NTP to 4.2.8p5. [SA-16:02] 63 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 64 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 65 Fix crash in TCP MD5 signatures. [SA-16:05] 66 Fix insecure default permissions for snmpd.config. [SA-16:06] 67 6820151216 p32 FreeBSD-SA-15:27.bind 69 Fix BIND remote denial of service vulnerability. [SA-15:27] 70 7120151205 p31 FreeBSD-SA-15:26.openssl 72 73 Fix OpenSSL X509_ATTRIBUTE memory leak. [SA-15:26] 74 7520151104 p30 FreeBSD-SA-15:25.ntp [revised] 76 FreeBSD-EN-15:19.kqueue 77 FreeBSD-EN-15:20.vm 78 79 Fix regression of ntpq(8) utility exiting due to trap 6 in 80 9.3-RELEASE-p29. [SA-15:25] 81 82 Fix regression in ntpd(8) lacking support for RAWDCF reference 83 clock in 9.3-RELEASE-p29. [SA-15:25] 84 85 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 86 87 Fix applications exiting due to segmentation violation on a correct 88 memory address. [EN-15:20] 89 9020151026: p29 FreeBSD-SA-15:25.ntp 91 92 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 93 94 The configuration file syntax has been changed, thus mergemaster 95 run is recommended. Now the "kod" parameter requires "limited" 96 parameter. If the ntp.conf is not updated, the ntpd will run 97 successfully, but with KoD disabled. 98 9920151002: p28 FreeBSD-SA-15:24.rpcbind [revised] 100 Revised patch to address a regression that prevents NIS from working. 101 10220150929: p27 FreeBSD-SA-15:24.rpcbind 103 104 Fix rpcbind(8) remote denial of service. [SA-15:24] 105 10620150916: p26 FreeBSD-EN-15:18.pkg 107 108 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 109 11020150902: p25 FreeBSD-SA-15:23.bind 111 112 Fix BIND remote denial of service vulnerability. [SA-15:23] 113 11420150825: p24 FreeBSD-SA-15:21.amd64 115 FreeBSD-SA-15:22.openssh 116 FreeBSD-EN-15:15.pkg 117 118 Fix local privilege escalation in IRET handler. [SA-15:21] 119 120 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 121 122 Fix insufficient check of unsupported pkg(7) signature methods. 123 [EN-15:15] 124 12520150818: p23 FreeBSD-SA-15:20.expat 126 127 Fix multiple integer overflows in expat (libbsdxml) XML parser. 128 [SA-15:20] 129 13020150805: p22 FreeBSD-SA-15:19.routed 131 132 Fix routed remote denial of service vulnerability. 133 13420150728: p21 FreeBSD-SA-15:15.tcp 135 FreeBSD-SA-15:16.openssh 136 FreeBSD-SA-15:17.bind 137 138 Fix resource exhaustion in TCP reassembly. [SA-15:15] 139 140 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 141 142 Fix BIND remote denial of service vulnerability. [SA-15:17] 143 14420150721: p20 FreeBSD-SA-15:13.tcp 145 146 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 147 [SA-15:13] 148 14920150707: p19 FreeBSD-SA-15:11.bind 150 Fix BIND resolver remote denial of service when validating. 151 15220150630: p18 FreeBSD-EN-15:08.sendmail [revised] 153 FreeBSD-EN-15:09.xlocale 154 155 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 156 157 Fix inconsistency between locale and rune locale states. 158 [EN-15:09] 159 16020150618: p17 FreeBSD-EN-15:08.sendmail 161 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 162 16320150612: p16 FreeBSD-SA-15:10.openssl 164 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 165 16620150609: p15 FreeBSD-EN-15:06.file 167 168 Updated base system file(1) to 5.22 to address multiple denial 169 of service issues. 170 17120150513: p14 FreeBSD-EN-15:04.freebsd-update 172 173 Fix bug with freebsd-update(8) that does not ensure the previous 174 upgrade was completed. [EN-15:04] 175 17620150407: p13 FreeBSD-SA-15:04.igmp [revised] 177 FreeBSD-SA-15:07.ntp 178 FreeBSD-SA-15:09.ipv6 179 180 Improved patch for SA-15:04.igmp. 181 182 Fix multiple vulnerabilities of ntp. [SA-15:07] 183 184 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 185 18620150320: p12 187 Fix patch for SA-15:06.openssl. 188 18920150319: p11 FreeBSD-SA-15:06.openssl 190 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 191 19220150225: p10 FreeBSD-SA-15:04.igmp 193 FreeBSD-SA-15:05.bind 194 FreeBSD-EN-15:01.vt 195 FreeBSD-EN-15:02.openssl 196 FreeBSD-EN-15:03.freebsd-update 197 198 Fix integer overflow in IGMP protocol. [SA-15:04] 199 200 Fix BIND remote denial of service vulnerability. [SA-15:05] 201 202 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 203 204 Updated base system OpenSSL to 0.9.8zd. [EN-15:02] 205 206 Fix freebsd-update libraries update ordering issue. [EN-15:03] 207 20820150127: p9 FreeBSD-SA-15:02.kmem 209 FreeBSD-SA-15:03.sctp 210 211 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 212 vulnerability. [SA-15:02] 213 214 Fix SCTP stream reset vulnerability. [SA-15:03] 215 21620150114: p8 FreeBSD-SA-15:01.openssl 217 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 218 21920141223: p7 FreeBSD-SA-14:31.ntp 220 FreeBSD-EN-14:13.freebsd-update 221 222 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 223 Fix directory deletion issue in freebsd-update. [EN-14:13] 224 22520141210: p6 FreeBSD-SA-14:28.file 226 FreeBSD-SA-14:29.bind 227 228 Fix multiple vulnerabilities in file(1) and libmagic(3). 229 [SA-14:28] 230 231 Fix BIND remote denial of service vulnerability. [SA-14:29] 232 23320141104: p5 FreeBSD-SA-14:25.setlogin 234 FreeBSD-SA-14:26.ftp 235 FreeBSD-EN-14:12.zfs 236 237 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 238 [SA-14:25] 239 240 Fix remote command execution in ftp(1). [SA-14:26] 241 242 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 243 24420141022: p4 FreeBSD-EN-14:10.tzdata 245 FreeBSD-EN-14:11.crypt 246 247 Time zone data file update. [EN-14:10] 248 249 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 250 25120141021: p3 FreeBSD-SA-14:20.rtsold 252 FreeBSD-SA-14:21.routed 253 FreeBSD-SA-14:22.namei 254 FreeBSD-SA-14:23.openssl 255 256 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 257 258 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 259 260 Fix memory leak in sandboxed namei lookup. [SA-14:22] 261 262 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 263 26420140916: p2 FreeBSD-SA-14:19.tcp 265 Fix Denial of Service in TCP packet processing. [SA-14:19] 266 26720140909: p1 FreeBSD-SA-14:18.openssl 268 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 269 27020140716: 271 9.3-RELEASE. 272 27320140608: 274 On i386 and amd64 systems, the onifconsole flag is now set by default 275 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 276 as a login TTY if it is set in the bootloader as an active kernel 277 console. No changes in behavior should result otherwise. To revert to 278 the previous behavior, set ttyu0 to "off" in /etc/ttys. 279 28020140512: 281 Clang and llvm have been upgraded to 3.4.1 release. 282 28320140321: 284 Clang and llvm have been upgraded to 3.4 release. 285 28620140216: 287 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 288 been deprecated and will not be part of FreeBSD 11.0 and later 289 releases. If you use this driver, please consider switching to 290 the nfe(4) driver instead. 291 29220131216: 293 The behavior of gss_pseudo_random() for the krb5 mechanism 294 has changed, for applications requesting a longer random string 295 than produced by the underlying enctype's pseudo-random() function. 296 In particular, the random string produced from a session key of 297 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 298 be different at the 17th octet and later, after this change. 299 The counter used in the PRF+ construction is now encoded as a 300 big-endian integer in accordance with RFC 4402. 301 __FreeBSD_version is bumped to 902505. 302 30320130930: 304 9.2-RELEASE. 305 30620130823: 307 Behavior of devfs rules path matching has been changed. 308 Pattern is now always matched against fully qualified devfs 309 path and slash characters must be explicitly matched by 310 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 311 subdirectories must be reviewed. 312 31320130705: 314 hastctl(8)'s `status' command output changed to terse one-liner format. 315 Scripts using this should switch to `list' command or be rewritten. 316 31720130618: 318 Fix a bug that allowed a tracing process (e.g. gdb) to write 319 to a memory-mapped file in the traced process's address space 320 even if neither the traced process nor the tracing process had 321 write access to that file. 322 32320130605: 324 Added ZFS TRIM support which is enabled by default. To disable 325 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 326 327 Creating new ZFS pools and adding new devices to existing pools 328 first performs a full device level TRIM which can take a significant 329 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 330 to disable this behaviour. 331 332 ZFS TRIM requires the underlying device support BIO_DELETE which 333 is currently provided by methods such as ATA TRIM and SCSI UNMAP 334 via CAM, which are typically supported by SSD's. 335 336 Stats for ZFS TRIM can be monitored by looking at the sysctl's 337 under kstat.zfs.misc.zio_trim. 338 33920130524: 340 `list' command has been added to hastctl(8). For now, it is full 341 equivalent of `status' command. 342 WARNING: in the near future the output of hastctl's status command 343 will change to more terse format. If you use `hastctl status' 344 for parsing in your scripts, switch to `hastctl list'. 345 34620130430: 347 The mergemaster command now uses the default MAKEOBJDIRPREFIX 348 rather than creating it's own in the temporary directory in 349 order allow access to bootstrapped versions of tools such as 350 install and mtree. When upgrading from version of FreeBSD where 351 the install command does not support -l, you will need to 352 install a new mergemaster command if mergemaster -p is required. 353 This can be accomplished with the command (cd src/usr.sbin/mergemaster 354 && make install). 355 356 Due to the use of the new -l option to install(1) during build 357 and install, you must take care not to directly set the INSTALL 358 make variable in your /etc/make.conf, /etc/src.conf, or on the 359 command line. If you wish to use the -C flag for all installs 360 you may be able to add INSTALL+=-C to /etc/make.conf or 361 /etc/src.conf. 362 36320130429: 364 Fix a bug that allows NFS clients to issue READDIR on files. 365 36620130315: 367 The install(1) option -M has changed meaning and now takes an 368 argument that is a file or path to append logs to. In the 369 unlikely event that -M was the last option on the command line 370 and the command line contained at least two files and a target 371 directory the first file will have logs appended to it. The -M 372 option served little practical purpose in the last decade so it's 373 used expected to be extremely rare. 374 37520130225: 376 A new compression method (lz4) has been merged to. Please refer to 377 zpool-features(7) for more information. 378 379 Please refer to the "ZFS notes" section of this file for information 380 on upgrading boot ZFS pools. 381 38220121224: 383 The VFS KBI was changed with the merge of several nullfs 384 optimizations and fixes. All filesystem modules must be 385 recompiled. 386 38720121218: 388 With the addition of auditdistd(8), a new auditdistd user is now 389 depended on during installworld. "mergemaster -p" can be used to add 390 the user prior to installworld, as documented in the handbook. 391 39220121205: 393 9.1-RELEASE. 394 39520121129: 396 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 397 Starting with this version the old system of ZFS pool versioning 398 is superseded by "feature flags". This concept enables forward 399 compatibility against certain future changes in functionality of ZFS 400 pools. The first two read-only compatible "feature flags" for ZFS 401 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 402 For more information read the new zpool-features(7) manual page. 403 Please refer to the "ZFS notes" section of this file for information 404 on upgrading boot ZFS pools. 405 40620121114: 407 The commit introducing bsd.compiler.mk breaks the traditional 408 building of kernels before this point. Add -m ${SRC}/share/mk 409 (for the right value of SRC) to your command lines to work 410 around; update your useland to a point after this; or use the 411 buildkernel/installkernel top-level targets. See also 20120829. 412 41320121102: 414 The IPFIREWALL_FORWARD kernel option has been removed. Its 415 functionality now turned on by default. 416 41720120913: 418 The random(4) support for the VIA hardware random number 419 generator (`PADLOCK') is no longer enabled unconditionally. 420 Add the PADLOCK_RNG option in the custom kernel config if 421 needed. The GENERIC kernels on i386 and amd64 do include the 422 option, so the change only affects the custom kernel 423 configurations. 424 42520120829: 426 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 427 the traditional method, you must update your system with an installworld 428 before the kernel will build. The documented make buildkernel/installkernel 429 interfaces (coupled with fresh make kernel-toolchain) continue to work. 430 43120120727: 432 The sparc64 ZFS loader has been changed to no longer try to auto- 433 detect ZFS providers based on diskN aliases but now requires these 434 to be explicitly listed in the OFW boot-device environment variable. 435 43620120422: 437 Now unix domain sockets behave "as expected" on nullfs(5). Previously 438 nullfs(5) did not pass through all behaviours to the underlying layer, 439 as a result if we bound to a socket on the lower layer we could connect 440 only to the lower path; if we bound to the upper layer we could connect 441 only to the upper path. The new behavior is one can connect to both the 442 lower and the upper paths regardless what layer path one binds to. 443 44420120109: 445 The acpi_wmi(4) status device /dev/wmistat has been renamed to 446 /dev/wmistat0. 447 44820120106: 449 A new VOP_ADVISE() was added to support posix_fadvise(2). All 450 filesystem modules must be recompiled. 451 45220120106: 453 The interface of the VOP_VPTOCNP(9) changed, now the returned 454 vnode shall be referenced, previously it was required to be 455 only held. All in-tree filesystems are converted. 456 45720120106: 458 9.0-RELEASE. 459 46020111101: 461 The broken amd(4) driver has been replaced with esp(4) in the amd64, 462 i386 and pc98 GENERIC kernel configuration files. 463 46420110913: 465 This commit modifies vfs_register() so that it uses a hash 466 calculation to set vfc_typenum, which is enabled by default. 467 The first time a system is booted after this change, the 468 vfc_typenum values will change for all file systems. The 469 main effect of this is a change to the NFS server file handles 470 for file systems that use vfc_typenum in their fsid, such as ZFS. 471 It will, however, prevent vfc_typenum from changing when file 472 systems are loaded in a different order for subsequent reboots. 473 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 474 until you are ready to remount all NFS clients after a reboot. 475 47620110828: 477 Bump the shared library version numbers for libraries that 478 do not use symbol versioning, have changed the ABI compared 479 to stable/8 and which shared library version was not bumped. 480 Done as part of 9.0-RELEASE cycle. 481 48220110815: 483 During the merge of Capsicum features, the fget(9) KPI was modified. 484 This may require the rebuilding of out-of-tree device drivers -- 485 issues have been reported specifically with the nVidia device driver. 486 __FreeBSD_version is bumped to 900041. 487 488 Also, there is a period between 20110811 and 20110814 where the 489 special devices /dev/{stdin,stdout,stderr} did not work correctly. 490 Building world from a kernel during that window may not work. 491 49220110628: 493 The packet filter (pf) code has been updated to OpenBSD 4.5. 494 You need to update userland tools to be in sync with kernel. 495 This update breaks backward compatibility with earlier pfsync(4) 496 versions. Care must be taken when updating redundant firewall setups. 497 49820110608: 499 The following sysctls and tunables are retired on x86 platforms: 500 machdep.hlt_cpus 501 machdep.hlt_logical_cpus 502 The following sysctl is retired: 503 machdep.hyperthreading_allowed 504 The sysctls were supposed to provide a way to dynamically offline and 505 online selected CPUs on x86 platforms, but the implementation has not 506 been reliable especially with SCHED_ULE scheduler. 507 machdep.hyperthreading_allowed tunable is still available to ignore 508 hyperthreading CPUs at OS level. 509 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 510 where X is an APIC ID of a CPU. Be advised, though, that disabling 511 CPUs in non-uniform fashion will result in non-uniform topology and 512 may lead to sub-optimal system performance with SCHED_ULE, which is 513 a default scheduler. 514 51520110607: 516 cpumask_t type is retired and cpuset_t is used in order to describe 517 a mask of CPUs. 518 51920110531: 520 Changes to ifconfig(8) for dynamic address family detection mandate 521 that you are running a kernel of 20110525 or later. Make sure to 522 follow the update procedure to boot a new kernel before installing 523 world. 524 52520110513: 526 Support for sun4v architecture is officially dropped 527 52820110503: 529 Several KPI breaking changes have been committed to the mii(4) layer, 530 the PHY drivers and consequently some Ethernet drivers using mii(4). 531 This means that miibus.ko and the modules of the affected Ethernet 532 drivers need to be recompiled. 533 534 Note to kernel developers: Given that the OUI bit reversion problem 535 was fixed as part of these changes all mii(4) commits related to OUIs, 536 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 537 handling, no longer can be merged verbatim to stable/8 and previous 538 branches. 539 54020110430: 541 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 542 into their kernel configurations along with 'device pci'. 543 54420110427: 545 The default NFS client is now the new NFS client, so fstype "newnfs" 546 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 547 Although mounts via fstype "nfs" will usually work without userland 548 changes, it is recommended that the mount(8) and mount_nfs(8) 549 commands be rebuilt from sources and that a link to mount_nfs called 550 mount_oldnfs be created. The new client is compiled into the 551 kernel with "options NFSCL" and this is needed for diskless root 552 file systems. The GENERIC kernel configs have been changed to use 553 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 554 To use the regular/old client, you can "mount -t oldnfs ...". For 555 a diskless root file system, you must also include a line like: 556 557 vfs.root.mountfrom="oldnfs:" 558 559 in the boot/loader.conf on the root fs on the NFS server to make 560 a diskless root fs use the old client. 561 56220110424: 563 The GENERIC kernels for all architectures now default to the new 564 CAM-based ATA stack. It means that all legacy ATA drivers were 565 removed and replaced by respective CAM drivers. If you are using 566 ATA device names in /etc/fstab or other places, make sure to update 567 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 568 where 'Y's are the sequential numbers starting from zero for each type 569 in order of detection, unless configured otherwise with tunables, 570 see cam(4)). There will be symbolic links created in /dev/ to map 571 old adX devices to the respective adaY. They should provide basic 572 compatibility for file systems mounting in most cases, but they do 573 not support old user-level APIs and do not have respective providers 574 in GEOM. Consider using updated management tools with new device names. 575 576 It is possible to load devices ahci, ata, siis and mvs as modules, 577 but option ATA_CAM should remain in kernel configuration to make ata 578 module work as CAM driver supporting legacy ATA controllers. Device ata 579 still can be used in modular fashion (atacore + ...). Modules atadisk 580 and atapi* are not used and won't affect operation in ATA_CAM mode. 581 Note that to use CAM-based ATA kernel should include CAM devices 582 scbus, pass, da (or explicitly ada), cd and optionally others. All of 583 them are parts of the cam module. 584 585 ataraid(4) functionality is now supported by the RAID GEOM class. 586 To use it you can load geom_raid kernel module and use graid(8) tool 587 for management. Instead of /dev/arX device names, use /dev/raid/rX. 588 589 No kernel config options or code have been removed, so if a problem 590 arises, please report it and optionally revert to the old ATA stack. 591 In order to do it you can remove from the kernel config: 592 options ATA_CAM 593 device ahci 594 device mvs 595 device siis 596 , and instead add back: 597 device atadisk # ATA disk drives 598 device ataraid # ATA RAID drives 599 device atapicd # ATAPI CDROM drives 600 device atapifd # ATAPI floppy drives 601 device atapist # ATAPI tape drives 602 60320110423: 604 The default NFS server has been changed to the new server, which 605 was referred to as the experimental server. If you need to switch 606 back to the old NFS server, you must now put the "-o" option on 607 both the mountd and nfsd commands. This can be done using the 608 mountd_flags and nfs_server_flags rc.conf variables until an 609 update to the rc scripts is committed, which is coming soon. 610 61120110418: 612 The GNU Objective-C runtime library (libobjc), and other Objective-C 613 related components have been removed from the base system. If you 614 require an Objective-C library, please use one of the available ports. 615 61620110331: 617 ath(4) has been split into bus- and device- modules. if_ath contains 618 the HAL, the TX rate control and the network device code. if_ath_pci 619 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 620 contains the AHB glue. Users need to load both if_ath_pci and if_ath 621 in order to use ath on everything else. 622 623 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 624 need to load if_ath and if_ath_pci for ath(4) operation. 625 62620110314: 627 As part of the replacement of sysinstall, the process of building 628 release media has changed significantly. For details, please re-read 629 release(7), which has been updated to reflect the new build process. 630 63120110218: 632 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 633 is the last available version under GPLv2. It brings a number of new 634 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 635 4.1 and SSE 4.2), better support for powerpc64, a number of new 636 directives, and lots of other small improvements. See the ChangeLog 637 file in contrib/binutils for the full details. 638 63920110218: 640 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 641 compliant, and will now use half of hash for authentication. 642 This will break interoperability with all stacks (including all 643 actual FreeBSD versions) who implement 644 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 645 authentication). 646 The only workaround with such peers is to use another HMAC 647 algorithm for IPsec ("phase 2") authentication. 648 64920110207: 650 Remove the uio_yield prototype and symbol. This function has 651 been misnamed since it was introduced and should not be 652 globally exposed with this name. The equivalent functionality 653 is now available using kern_yield(curthread->td_user_pri). 654 The function remains undocumented. 655 65620110112: 657 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 658 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 659 for scalar sysctls is defined but disabled. Code that needs 660 UQUAD to pass the type checking that must compile on older 661 systems where the define is not present can check against 662 __FreeBSD_version >= 900030. 663 664 The system dialog(1) has been replaced with a new version previously 665 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 666 with the previous version, but the libdialog associated with it has 667 a largely incompatible API. As such, the original version of libdialog 668 will be kept temporarily as libodialog, until its base system consumers 669 are replaced or updated. Bump __FreeBSD_version to 900030. 670 67120110103: 672 If you are trying to run make universe on a -stable system, and you get 673 the following warning: 674 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 675 unknown. config(8) likely too old." 676 or something similar to it, then you must upgrade your -stable system 677 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 678 stable/8) or build the config from the latest stable/8 branch and 679 install it on your system. 680 681 Prior to this date, building a current universe on 8-stable system from 682 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 683 error in the first kernel build phase. A new config on those old 684 systems will fix that problem for older versions of -current. 685 68620101228: 687 The TCP stack has been modified to allow Khelp modules to interact with 688 it via helper hook points and store per-connection data in the TCP 689 control block. Bump __FreeBSD_version to 900029. User space tools that 690 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 691 be recompiled. 692 69320101114: 694 Generic IEEE 802.3 annex 31B full duplex flow control support has been 695 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 696 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 697 to take advantage of it instead of using custom implementations. This 698 means that these drivers now no longer unconditionally advertise 699 support for flow control but only do so if flow control is a selected 700 media option. This was implemented in the generic support that way in 701 order to allow flow control to be switched on and off via ifconfig(8) 702 with the PHY specific default to typically off in order to protect 703 from unwanted effects. Consequently, if you used flow control with 704 one of the above mentioned drivers you now need to explicitly enable 705 it, for example via: 706 ifconfig bge0 media auto mediaopt flowcontrol 707 708 Along with the above mentioned changes generic support for setting 709 1000baseT master mode also has been added and brgphy(4), ciphy(4), 710 e1000phy(4) as well as ip1000phy(4) have been converted to take 711 advantage of it. This means that these drivers now no longer take the 712 link0 parameter for selecting master mode but the master media option 713 has to be used instead, for example like in the following: 714 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 715 716 Selection of master mode now is also available with all other PHY 717 drivers supporting 1000baseT. 718 71920101111: 720 The TCP stack has received a significant update to add support for 721 modularised congestion control and generally improve the clarity of 722 congestion control decisions. Bump __FreeBSD_version to 900025. User 723 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 724 sockstat) need to be recompiled. 725 72620101002: 727 The man(1) utility has been replaced by a new version that no longer 728 uses /etc/manpath.config. Please consult man.conf(5) for how to 729 migrate local entries to the new format. 730 73120100928: 732 The copyright strings printed by login(1) and sshd(8) at the time of a 733 new connection have been removed to follow other operating systems and 734 upstream sshd. 735 73620100915: 737 A workaround for a fixed ld bug has been removed in kernel code, 738 so make sure that your system ld is built from sources after 739 revision 210245 from 2010-07-19 (r211583 if building head kernel 740 on stable/8, r211584 for stable/7; both from 2010-08-21). 741 A symptom of incorrect ld version is different addresses for 742 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 743 74420100913: 745 The $ipv6_prefer variable in rc.conf(5) has been split into 746 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 747 748 The $ip6addrctl_policy is a variable to choose a pre-defined 749 address selection policy set by ip6addrctl(8). A value 750 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 751 default is "AUTO". 752 753 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 754 flag (see an entry of 20090926) is set on an interface with no 755 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 756 security reason. If you want IPv6 link-local address on all 757 interfaces by default, set this to "YES". 758 759 The old ipv6_prefer="YES" is equivalent to 760 ipv6_activate_all_interfaces="YES" and 761 ip6addrctl_policy="ipv6_prefer". 762 76320100913: 764 DTrace has grown support for userland tracing. Due to this, DTrace is 765 now i386 and amd64 only. 766 dtruss(1) is now installed by default on those systems and a new 767 kernel module is needed for userland tracing: fasttrap. 768 No changes to your kernel config file are necessary to enable 769 userland tracing, but you might consider adding 'STRIP=' and 770 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 771 to have informative userland stack traces in DTrace (ustack). 772 77320100725: 774 The acpi_aiboost(4) driver has been removed in favor of the new 775 aibs(4) driver. You should update your kernel configuration file. 776 77720100722: 778 BSD grep has been imported to the base system and it is built by 779 default. It is completely BSD licensed, highly GNU-compatible, uses 780 less memory than its GNU counterpart and has a small codebase. 781 However, it is slower than its GNU counterpart, which is mostly 782 noticeable for larger searches, for smaller ones it is measurable 783 but not significant. The reason is complex, the most important factor 784 is that we lack a modern and efficient regex library and GNU 785 overcomes this by optimizing the searches internally. Future work 786 on improving the regex performance is planned, for the meantime, 787 users that need better performance, can build GNU grep instead by 788 setting the WITH_GNU_GREP knob. 789 79020100713: 791 Due to the import of powerpc64 support, all existing powerpc kernel 792 configuration files must be updated with a machine directive like this: 793 machine powerpc powerpc 794 795 In addition, an updated config(8) is required to build powerpc kernels 796 after this change. 797 79820100713: 799 A new version of ZFS (version 15) has been merged to -HEAD. 800 This version uses a python library for the following subcommands: 801 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 802 For full functionality of these commands the following port must 803 be installed: sysutils/py-zfs 804 80520100429: 806 'vm_page's are now hashed by physical address to an array of mutexes. 807 Currently this is only used to serialize access to hold_count. Over 808 time the page queue mutex will be peeled away. This changes the size 809 of pmap on every architecture. And requires all callers of vm_page_hold 810 and vm_page_unhold to be updated. 811 81220100402: 813 WITH_CTF can now be specified in src.conf (not recommended, there 814 are some problems with static executables), make.conf (would also 815 affect ports which do not use GNU make and do not override the 816 compile targets) or in the kernel config (via "makeoptions 817 WITH_CTF=yes"). 818 When WITH_CTF was specified there before this was silently ignored, 819 so make sure that WITH_CTF is not used in places which could lead 820 to unwanted behavior. 821 82220100311: 823 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 824 to allow 32-bit compatibility on non-x86 platforms. All kernel 825 configurations on amd64 and ia64 platforms using these options must 826 be modified accordingly. 827 82820100113: 829 The utmp user accounting database has been replaced with utmpx, 830 the user accounting interface standardized by POSIX. 831 Unfortunately the semantics of utmp and utmpx don't match, 832 making it practically impossible to support both interfaces. 833 The user accounting database is used by tools like finger(1), 834 last(1), talk(1), w(1) and ac(8). 835 836 All applications in the base system use utmpx. This means only 837 local binaries (e.g. from the ports tree) may still use these 838 utmp database files. These applications must be rebuilt to make 839 use of utmpx. 840 841 After the system has been upgraded, it is safe to remove the old 842 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 843 assuming their contents is of no importance anymore. Old wtmp 844 databases can only be used by last(1) and ac(8) after they have 845 been converted to the new format using wtmpcvt(1). 846 84720100108: 848 Introduce the kernel thread "deadlock resolver" (which can be enabled 849 via the DEADLKRES option, see NOTES for more details) and the 850 sleepq_type() function for sleepqueues. 851 85220091202: 853 The rc.firewall and rc.firewall6 were unified, and 854 rc.firewall6 and rc.d/ip6fw were removed. 855 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 856 variables are obsoleted. Instead, the following new rc 857 variables are added to rc.d/ipfw: 858 859 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 860 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 861 firewall_simple_onet_ipv6, firewall_trusted_ipv6 862 863 The meanings correspond to the relevant IPv4 variables. 864 86520091125: 866 8.0-RELEASE. 867 86820091113: 869 The default terminal emulation for syscons(4) has been changed 870 from cons25 to xterm on all platforms except pc98. This means 871 that the /etc/ttys file needs to be updated to ensure correct 872 operation of applications on the console. 873 874 The terminal emulation style can be toggled per window by using 875 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 876 options can be used to change the compile-time default back to 877 cons25. 878 879 To prevent graphical artifacts, make sure the TERM environment 880 variable is set to match the terminal emulation that is being 881 performed by syscons(4). 882 88320091109: 884 The layout of the structure ieee80211req_scan_result has changed. 885 Applications that require wireless scan results (e.g. ifconfig(8)) 886 from net80211 need to be recompiled. 887 888 Applications such as wpa_supplicant(8) may require a full world 889 build without using NO_CLEAN in order to get synchronized with the 890 new structure. 891 89220091025: 893 The iwn(4) driver has been updated to support the 5000 and 5150 series. 894 There's one kernel module for each firmware. Adding "device iwnfw" 895 to the kernel configuration file means including all three firmware 896 images inside the kernel. If you want to include just the one for 897 your wireless card, use the devices iwn4965fw, iwn5000fw or 898 iwn5150fw. 899 90020090926: 901 The rc.d/network_ipv6, IPv6 configuration script has been integrated 902 into rc.d/netif. The changes are the following: 903 904 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 905 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 906 Note that both variables need the "inet6" keyword at the head. 907 908 Do not set $ipv6_network_interfaces manually if you do not 909 understand what you are doing. It is not needed in most cases. 910 911 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 912 they are obsolete. 913 914 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 915 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 916 917 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 918 all configured interfaces have "inet6 accept_rtadv" in the 919 $ifconfig_IF_ipv6. These are for backward compatibility. 920 921 3. A new variable $ipv6_prefer has been added. If NO, IPv6 922 functionality of interfaces with no corresponding 923 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 924 and the default address selection policy of ip6addrctl(8) 925 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 926 Note that if you want to configure IPv6 functionality on the 927 disabled interfaces after boot, first you need to clear the flag by 928 using ifconfig(8) like: 929 930 ifconfig em0 inet6 -ifdisabled 931 932 If YES, the default address selection policy is set as 933 IPv6-preferred. 934 935 The default value of $ipv6_prefer is NO. 936 937 4. If your system need to receive Router Advertisement messages, 938 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 939 scripts automatically invoke rtsol(8) when the interface becomes 940 UP. The Router Advertisement messages are used for SLAAC 941 (State-Less Address AutoConfiguration). 942 94320090922: 944 802.11s D3.03 support was committed. This is incompatible with the 945 previous code, which was based on D3.0. 946 94720090912: 948 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 949 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 950 control whether accepting Router Advertisement messages or not. 951 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 952 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 953 The ifconfig(8) utility now supports these flags. 954 95520090910: 956 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 957 mount(8) and -a option for df(1) to see them. 958 95920090825: 960 The old tunable hw.bus.devctl_disable has been superseded by 961 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 962 replaced by hw.bus.devctl_queue=0. The default for this new tunable 963 is 1000. 964 96520090813: 966 Remove the option STOP_NMI. The default action is now to use NMI only 967 for KDB via the newly introduced function stop_cpus_hard() and 968 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 969 97020090803: 971 The stable/8 branch created in subversion. This corresponds to the 972 RELENG_8 branch in CVS. 973 97420090719: 975 Bump the shared library version numbers for all libraries that do not 976 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 977 __FreeBSD_version to 800105. 978 97920090714: 980 Due to changes in the implementation of virtual network stack support, 981 all network-related kernel modules must be recompiled. As this change 982 breaks the ABI, bump __FreeBSD_version to 800104. 983 98420090713: 985 The TOE interface to the TCP syncache has been modified to remove 986 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 987 The cxgb driver is the only TOE consumer affected by this change, and 988 needs to be recompiled along with the kernel. As this change breaks 989 the ABI, bump __FreeBSD_version to 800103. 990 99120090712: 992 Padding has been added to struct tcpcb, sackhint and tcpstat in 993 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 994 maintaining the ABI. However, this change breaks the ABI, so bump 995 __FreeBSD_version to 800102. User space tools that rely on the size of 996 any of these structs (e.g. sockstat) need to be recompiled. 997 99820090630: 999 The NFS_LEGACYRPC option has been removed along with the old kernel 1000 RPC implementation that this option selected. Kernel configurations 1001 may need to be adjusted. 1002 100320090629: 1004 The network interface device nodes at /dev/net/<interface> have been 1005 removed. All ioctl operations can be performed the normal way using 1006 routing sockets. The kqueue functionality can generally be replaced 1007 with routing sockets. 1008 100920090628: 1010 The documentation from the FreeBSD Documentation Project (Handbook, 1011 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1012 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1013 101420090624: 1015 The ABI of various structures related to the SYSV IPC API have been 1016 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1017 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1018 800100. 1019 102020090622: 1021 Layout of struct vnet has changed as routing related variables were 1022 moved to their own Vimage module. Modules need to be recompiled. Bump 1023 __FreeBSD_version to 800099. 1024 102520090619: 1026 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1027 respectively. As long as no more than 16 groups per process are used, 1028 no changes should be visible. When more than 16 groups are used, old 1029 binaries may fail if they call getgroups() or getgrouplist() with 1030 statically sized storage. Recompiling will work around this, but 1031 applications should be modified to use dynamically allocated storage 1032 for group arrays as POSIX.1-2008 does not cap an implementation's 1033 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1034 1035 NFS and portalfs mounts may also be affected as the list of groups is 1036 truncated to 16. Users of NFS who use more than 16 groups, should 1037 take care that negative group permissions are not used on the exported 1038 file systems as they will not be reliable unless a GSSAPI based 1039 authentication method is used. 1040 104120090616: 1042 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1043 option compiles in the support for adaptive spinning for lockmgrs 1044 which want to enable it. The lockinit() function now accepts the flag 1045 LK_ADAPTIVE in order to make the lock object subject to adaptive 1046 spinning when both held in write and read mode. 1047 104820090613: 1049 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1050 changed. User applications that use this ioctl need to be rebuilt. 1051 105220090611: 1053 The layout of struct thread has changed. Kernel and modules need to 1054 be rebuilt. 1055 105620090608: 1057 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1058 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1059 106020090602: 1061 window(1) has been removed from the base system. It can now be 1062 installed from ports. The port is called misc/window. 1063 106420090601: 1065 The way we are storing and accessing `routing table' entries has 1066 changed. Programs reading the FIB, like netstat, need to be 1067 re-compiled. 1068 106920090601: 1070 A new netisr implementation has been added for FreeBSD 8. Network 1071 file system modules, such as igmp, ipdivert, and others, should be 1072 rebuilt. 1073 Bump __FreeBSD_version to 800096. 1074 107520090530: 1076 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1077 more valid. 1078 107920090530: 1080 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1081 Bump __FreeBSD_version to 800094. 1082 108320090529: 1084 Add mnt_xflag field to 'struct mount'. File system modules need to be 1085 rebuilt. 1086 Bump __FreeBSD_version to 800093. 1087 108820090528: 1089 The compiling option ADAPTIVE_SX has been retired while it has been 1090 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1091 The KPI for sx_init_flags() changes as accepting flags: 1092 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1093 been introduced in order to handle the reversed logic. 1094 Bump __FreeBSD_version to 800092. 1095 109620090527: 1097 Add support for hierarchical jails. Remove global securelevel. 1098 Bump __FreeBSD_version to 800091. 1099 110020090523: 1101 The layout of struct vnet_net has changed, therefore modules 1102 need to be rebuilt. 1103 Bump __FreeBSD_version to 800090. 1104 110520090523: 1106 The newly imported zic(8) produces a new format in the output. Please 1107 run tzsetup(8) to install the newly created data to /etc/localtime. 1108 110920090520: 1110 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1111 hw.usb.* and is now consistent again with previous releases. 1112 111320090520: 1114 802.11 monitor mode support was revised and driver api's were changed. 1115 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1116 of DLT_IEEE802_11. No user-visible data structures were changed but 1117 applications that use DLT_IEEE802_11 may require changes. 1118 Bump __FreeBSD_version to 800088. 1119 112020090430: 1121 The layout of the following structs has changed: sysctl_oid, 1122 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1123 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1124 panics may be experienced. World rebuild is required for 1125 correctly checking networking state from userland. 1126 Bump __FreeBSD_version to 800085. 1127 112820090429: 1129 MLDv2 and Source-Specific Multicast (SSM) have been merged 1130 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1131 The implementation of SSM within FreeBSD's IPv6 stack closely 1132 follows the IPv4 implementation. 1133 1134 For kernel developers: 1135 1136 * The most important changes are that the ip6_output() and 1137 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1138 and this lock has been downgraded to a non-recursive mutex. 1139 1140 * As with the changes to the IPv4 stack to support SSM, filtering 1141 of inbound multicast traffic must now be performed by transport 1142 protocols within the IPv6 stack. This does not apply to TCP and 1143 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1144 1145 * The KPIs used by IPv6 multicast are similar to those used by 1146 the IPv4 stack, with the following differences: 1147 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1148 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1149 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1150 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1151 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1152 for MLDv1 have an additional 'timer' argument which is used to 1153 jitter the initial membership report for the solicited-node 1154 multicast membership on-link. 1155 * This is not strictly needed for MLDv2, which already jitters 1156 its report transmissions. However, the 'timer' argument is 1157 preserved in case MLDv1 is active on the interface. 1158 1159 * The KAME linked-list based IPv6 membership implementation has 1160 been refactored to use a vector similar to that used by the IPv4 1161 stack. 1162 Code which maintains a list of its own multicast memberships 1163 internally, e.g. carp, has been updated to reflect the new 1164 semantics. 1165 1166 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1167 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1168 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1169 implementation constraint which needs to be addressed in HEAD. 1170 1171 For application developers: 1172 1173 * The changes are broadly similar to those made for the IPv4 1174 stack. 1175 1176 * The use of IPv4 and IPv6 multicast socket options on the same 1177 socket, using mapped addresses, HAS NOT been tested or supported. 1178 1179 * There are a number of issues with the implementation of various 1180 IPv6 multicast APIs which need to be resolved in the API surface 1181 before the implementation is fully compatible with KAME userland 1182 use, and these are mostly to do with interface index treatment. 1183 1184 * The literature available discusses the use of either the delta / ASM 1185 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1186 using setsourcefilter(3)/getsourcefilter(3). For more information 1187 please refer to RFC 3768, 'Socket Interface Extensions for 1188 Multicast Source Filters'. 1189 1190 * Applications which use the published RFC 3678 APIs should be fine. 1191 1192 For systems administrators: 1193 1194 * The mtest(8) utility has been refactored to support IPv6, in 1195 addition to IPv4. Interface addresses are no longer accepted 1196 as arguments, their names must be used instead. The utility 1197 will map the interface name to its first IPv4 address as 1198 returned by getifaddrs(3). 1199 1200 * The ifmcstat(8) utility has also been updated to print the MLDv2 1201 endpoint state and source filter lists via sysctl(3). 1202 1203 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1204 loopback of IPv6 multicast datagrams by default; it defaults to 1 1205 to preserve the existing behaviour. Disabling multicast loopback is 1206 recommended for optimal system performance. 1207 1208 * The IPv6 MROUTING code has been changed to examine this sysctl 1209 instead of attempting to perform a group lookup before looping 1210 back forwarded datagrams. 1211 1212 Bump __FreeBSD_version to 800084. 1213 121420090422: 1215 Implement low-level Bluetooth HCI API. 1216 Bump __FreeBSD_version to 800083. 1217 121820090419: 1219 The layout of struct malloc_type, used by modules to register new 1220 memory allocation types, has changed. Most modules will need to 1221 be rebuilt or panics may be experienced. 1222 Bump __FreeBSD_version to 800081. 1223 122420090415: 1225 Anticipate overflowing inp_flags - add inp_flags2. 1226 This changes most offsets in inpcb, so checking v4 connection 1227 state will require a world rebuild. 1228 Bump __FreeBSD_version to 800080. 1229 123020090415: 1231 Add an llentry to struct route and struct route_in6. Modules 1232 embedding a struct route will need to be recompiled. 1233 Bump __FreeBSD_version to 800079. 1234 123520090414: 1236 The size of rt_metrics_lite and by extension rtentry has changed. 1237 Networking administration apps will need to be recompiled. 1238 The route command now supports show as an alias for get, weighting 1239 of routes, sticky and nostick flags to alter the behavior of stateful 1240 load balancing. 1241 Bump __FreeBSD_version to 800078. 1242 124320090408: 1244 Do not use Giant for kbdmux(4) locking. This is wrong and 1245 apparently causing more problems than it solves. This will 1246 re-open the issue where interrupt handlers may race with 1247 kbdmux(4) in polling mode. Typical symptoms include (but 1248 not limited to) duplicated and/or missing characters when 1249 low level console functions (such as gets) are used while 1250 interrupts are enabled (for example geli password prompt, 1251 mountroot prompt etc.). Disabling kbdmux(4) may help. 1252 125320090407: 1254 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1255 kernel modules referencing any of the above need to be recompiled. 1256 Bump __FreeBSD_version to 800075. 1257 125820090320: 1259 GEOM_PART has become the default partition slicer for storage devices, 1260 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1261 introduces some changes: 1262 1263 MSDOS/EBR: the devices created from MSDOS extended partition entries 1264 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1265 to devices with offset-based names. fstabs may need to be modified. 1266 1267 BSD: the "geometry does not match label" warning is harmless in most 1268 cases but it points to problems in file system misalignment with 1269 disk geometry. The "c" partition is now implicit, covers the whole 1270 top-level drive and cannot be (mis)used by users. 1271 1272 General: Kernel dumps are now not allowed to be written to devices 1273 whose partition types indicate they are meant to be used for file 1274 systems (or, in case of MSDOS partitions, as something else than 1275 the "386BSD" type). 1276 1277 Most of these changes date approximately from 200812. 1278 127920090319: 1280 The uscanner(4) driver has been removed from the kernel. This follows 1281 Linux removing theirs in 2.6 and making libusb the default interface 1282 (supported by sane). 1283 128420090319: 1285 The multicast forwarding code has been cleaned up. netstat(1) 1286 only relies on KVM now for printing bandwidth upcall meters. 1287 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1288 ip6_mroute_mod respectively. The config(5) options for statically 1289 compiling this code remain the same, i.e. 'options MROUTING'. 1290 129120090315: 1292 Support for the IFF_NEEDSGIANT network interface flag has been 1293 removed, which means that non-MPSAFE network device drivers are no 1294 longer supported. In particular, if_ar, if_sr, and network device 1295 drivers from the old (legacy) USB stack can no longer be built or 1296 used. 1297 129820090313: 1299 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1300 a bunch of new language catalog files have also been added. 1301 This means that some common libc messages are now localized and 1302 they depend on the LC_MESSAGES environmental variable. 1303 130420090313: 1305 The k8temp(4) driver has been renamed to amdtemp(4) since 1306 support for Family 10 and Family 11 CPU families was added. 1307 130820090309: 1309 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1310 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1311 1312 For kernel developers, the most important changes are that the 1313 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1314 and this lock has been downgraded to a non-recursive mutex. 1315 1316 Transport protocols (UDP, Raw IP) are now responsible for filtering 1317 inbound multicast traffic according to group membership and source 1318 filters. The imo_multicast_filter() KPI exists for this purpose. 1319 Transports which do not use multicast (SCTP, TCP) already reject 1320 multicast by default. Forwarding and receive performance may improve 1321 as a mutex acquisition is no longer needed in the ip_input() 1322 low-level input path. in_addmulti() and in_delmulti() are shimmed 1323 to new KPIs which exist to support SSM in-kernel. 1324 1325 For application developers, it is recommended that loopback of 1326 multicast datagrams be disabled for best performance, as this 1327 will still cause the lock to be taken for each looped-back 1328 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1329 be tuned to 0 to disable loopback by default; it defaults to 1 1330 to preserve the existing behaviour. 1331 1332 For systems administrators, to obtain best performance with 1333 multicast reception and multiple groups, it is always recommended 1334 that a card with a suitably precise hash filter is used. Hash 1335 collisions will still result in the lock being taken within the 1336 transport protocol input path to check group membership. 1337 1338 If deploying FreeBSD in an environment with IGMP snooping switches, 1339 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1340 enabled; this forces 224.0.0.0/24 group membership to be announced 1341 via IGMP. 1342 1343 The size of 'struct igmpstat' has changed; netstat needs to be 1344 recompiled to reflect this. 1345 Bump __FreeBSD_version to 800070. 1346 134720090309: 1348 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1349 updated to use it. This requires a buildworld/installworld in order to 1350 update the library and dependencies (usbconfig, etc). Its advisable to 1351 rebuild all ports which uses libusb. More specific directions are given 1352 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1353 libusb are no longer required and can be removed. 1354 135520090302: 1356 A workaround is committed to allow the creation of System V shared 1357 memory segment of size > 2 GB on the 64-bit architectures. 1358 Due to a limitation of the existing ABI, the shm_segsz member 1359 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1360 wrong for large segments. Note that limits must be explicitly 1361 raised to allow such segments to be created. 1362 136320090301: 1364 The layout of struct ifnet has changed, requiring a rebuild of all 1365 network device driver modules. 1366 136720090227: 1368 The /dev handling for the new USB stack has changed, a 1369 buildworld/installworld is required for libusb20. 1370 137120090223: 1372 The new USB2 stack has now been permanently moved in and all kernel and 1373 module names reverted to their previous values (eg, usb, ehci, ohci, 1374 ums, ...). The old usb stack can be compiled in by prefixing the name 1375 with the letter 'o', the old usb modules have been removed. 1376 Updating entry 20090216 for xorg and 20090215 for libmap may still 1377 apply. 1378 137920090217: 1380 The rc.conf(5) option if_up_delay has been renamed to 1381 defaultroute_delay to better reflect its purpose. If you have 1382 customized this setting in /etc/rc.conf you need to update it to 1383 use the new name. 1384 138520090216: 1386 xorg 7.4 wants to configure its input devices via hald which does not 1387 yet work with USB2. If the keyboard/mouse does not work in xorg then 1388 add 1389 Option "AllowEmptyInput" "off" 1390 to your ServerLayout section. This will cause X to use the configured 1391 kbd and mouse sections from your xorg.conf. 1392 139320090215: 1394 The GENERIC kernels for all architectures now default to the new USB2 1395 stack. No kernel config options or code have been removed so if a 1396 problem arises please report it and optionally revert to the old USB 1397 stack. If you are loading USB kernel modules or have a custom kernel 1398 that includes GENERIC then ensure that usb names are also changed over, 1399 eg uftdi -> usb2_serial_ftdi. 1400 1401 Older programs linked against the ports libusb 0.1 need to be 1402 redirected to the new stack's libusb20. /etc/libmap.conf can 1403 be used for this: 1404 # Map old usb library to new one for usb2 stack 1405 libusb-0.1.so.8 libusb20.so.1 1406 140720090209: 1408 All USB ethernet devices now attach as interfaces under the name ueN 1409 (eg. ue0). This is to provide a predictable name as vendors often 1410 change usb chipsets in a product without notice. 1411 141220090203: 1413 The ichsmb(4) driver has been changed to require SMBus slave 1414 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1415 All of the other SMBus controller drivers require left-justified 1416 slave addresses, so this change makes all the drivers provide the 1417 same interface. 1418 141920090201: 1420 INET6 statistics (struct ip6stat) was updated. 1421 netstat(1) needs to be recompiled. 1422 142320090119: 1424 NTFS has been removed from GENERIC kernel on amd64 to match 1425 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1426 will load ntfs.ko module automatically when NTFS support is 1427 actually needed, unless ntfs.ko is not installed or security 1428 level prohibits loading kernel modules. If either is the case, 1429 "options NTFS" has to be added into kernel config. 1430 143120090115: 1432 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1433 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1434 800061. User space tools that rely on the size of struct tcpcb in 1435 tcp_var.h (e.g. sockstat) need to be recompiled. 1436 143720081225: 1438 ng_tty(4) module updated to match the new TTY subsystem. 1439 Due to API change, user-level applications must be updated. 1440 New API support added to mpd5 CVS and expected to be present 1441 in next mpd5.3 release. 1442 144320081219: 1444 With __FreeBSD_version 800060 the makefs tool is part of 1445 the base system (it was a port). 1446 144720081216: 1448 The afdata and ifnet locks have been changed from mutexes to 1449 rwlocks, network modules will need to be re-compiled. 1450 145120081214: 1452 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1453 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1454 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1455 architecture and 40 bytes on 64-bit architecture. The userland 1456 applications "arp" and "ndp" have been updated accordingly. 1457 The output from "netstat -r" shows only routing entries and 1458 none of the L2 information. 1459 146020081130: 1461 __FreeBSD_version 800057 marks the switchover from the 1462 binary ath hal to source code. Users must add the line: 1463 1464 options AH_SUPPORT_AR5416 1465 1466 to their kernel config files when specifying: 1467 1468 device ath_hal 1469 1470 The ath_hal module no longer exists; the code is now compiled 1471 together with the driver in the ath module. It is now 1472 possible to tailor chip support (i.e. reduce the set of chips 1473 and thereby the code size); consult ath_hal(4) for details. 1474 147520081121: 1476 __FreeBSD_version 800054 adds memory barriers to 1477 <machine/atomic.h>, new interfaces to ifnet to facilitate 1478 multiple hardware transmit queues for cards that support 1479 them, and a lock-less ring-buffer implementation to 1480 enable drivers to more efficiently manage queueing of 1481 packets. 1482 148320081117: 1484 A new version of ZFS (version 13) has been merged to -HEAD. 1485 This version has zpool attribute "listsnapshots" off by 1486 default, which means "zfs list" does not show snapshots, 1487 and is the same as Solaris behavior. 1488 148920081028: 1490 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1491 149220081009: 1493 The uhci, ohci, ehci and slhci USB Host controller drivers have 1494 been put into separate modules. If you load the usb module 1495 separately through loader.conf you will need to load the 1496 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1497 controller add the following to loader.conf: 1498 1499 uhci_load="YES" 1500 ehci_load="YES" 1501 150220081009: 1503 The ABI used by the PMC toolset has changed. Please keep 1504 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1505 sync. 1506 150720081009: 1508 atapci kernel module now includes only generic PCI ATA 1509 driver. AHCI driver moved to ataahci kernel module. 1510 All vendor-specific code moved into separate kernel modules: 1511 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1512 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1513 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1514 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1515 151620080820: 1517 The TTY subsystem of the kernel has been replaced by a new 1518 implementation, which provides better scalability and an 1519 improved driver model. Most common drivers have been migrated to 1520 the new TTY subsystem, while others have not. The following 1521 drivers have not yet been ported to the new TTY layer: 1522 1523 PCI/ISA: 1524 cy, digi, rc, rp, sio 1525 1526 USB: 1527 ubser, ucycom 1528 1529 Line disciplines: 1530 ng_h4, ng_tty, ppp, sl, snp 1531 1532 Adding these drivers to your kernel configuration file shall 1533 cause compilation to fail. 1534 153520080818: 1536 ntpd has been upgraded to 4.2.4p5. 1537 153820080801: 1539 OpenSSH has been upgraded to 5.1p1. 1540 1541 For many years, FreeBSD's version of OpenSSH preferred DSA 1542 over RSA for host and user authentication keys. With this 1543 upgrade, we've switched to the vendor's default of RSA over 1544 DSA. This may cause upgraded clients to warn about unknown 1545 host keys even for previously known hosts. Users should 1546 follow the usual procedure for verifying host keys before 1547 accepting the RSA key. 1548 1549 This can be circumvented by setting the "HostKeyAlgorithms" 1550 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1551 command line. 1552 1553 Please note that the sequence of keys offered for 1554 authentication has been changed as well. You may want to 1555 specify IdentityFile in a different order to revert this 1556 behavior. 1557 155820080713: 1559 The sio(4) driver has been removed from the i386 and amd64 1560 kernel configuration files. This means uart(4) is now the 1561 default serial port driver on those platforms as well. 1562 1563 To prevent collisions with the sio(4) driver, the uart(4) driver 1564 uses different names for its device nodes. This means the 1565 onboard serial port will now most likely be called "ttyu0" 1566 instead of "ttyd0". You may need to reconfigure applications to 1567 use the new device names. 1568 1569 When using the serial port as a boot console, be sure to update 1570 /boot/device.hints and /etc/ttys before booting the new kernel. 1571 If you forget to do so, you can still manually specify the hints 1572 at the loader prompt: 1573 1574 set hint.uart.0.at="isa" 1575 set hint.uart.0.port="0x3F8" 1576 set hint.uart.0.flags="0x10" 1577 set hint.uart.0.irq="4" 1578 boot -s 1579 158020080609: 1581 The gpt(8) utility has been removed. Use gpart(8) to partition 1582 disks instead. 1583 158420080603: 1585 The version that Linuxulator emulates was changed from 2.4.2 1586 to 2.6.16. If you experience any problems with Linux binaries 1587 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1588 if it fixes the problem contact emulation mailing list. 1589 159020080525: 1591 ISDN4BSD (I4B) was removed from the src tree. You may need to 1592 update a your kernel configuration and remove relevant entries. 1593 159420080509: 1595 I have checked in code to support multiple routing tables. 1596 See the man pages setfib(1) and setfib(2). 1597 This is a hopefully backwards compatible version, 1598 but to make use of it you need to compile your kernel 1599 with options ROUTETABLES=2 (or more up to 16). 1600 160120080420: 1602 The 802.11 wireless support was redone to enable multi-bss 1603 operation on devices that are capable. The underlying device 1604 is no longer used directly but instead wlanX devices are 1605 cloned with ifconfig. This requires changes to rc.conf files. 1606 For example, change: 1607 ifconfig_ath0="WPA DHCP" 1608 to 1609 wlans_ath0=wlan0 1610 ifconfig_wlan0="WPA DHCP" 1611 see rc.conf(5) for more details. In addition, mergemaster of 1612 /etc/rc.d is highly recommended. Simultaneous update of userland 1613 and kernel wouldn't hurt either. 1614 1615 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1616 modules were merged into the base wlan module. All references 1617 to these modules (e.g. in kernel config files) must be removed. 1618 161920080408: 1620 psm(4) has gained write(2) support in native operation level. 1621 Arbitrary commands can be written to /dev/psm%d and status can 1622 be read back from it. Therefore, an application is responsible 1623 for status validation and error recovery. It is a no-op in 1624 other operation levels. 1625 162620080312: 1627 Support for KSE threading has been removed from the kernel. To 1628 run legacy applications linked against KSE libmap.conf may 1629 be used. The following libmap.conf may be used to ensure 1630 compatibility with any prior release: 1631 1632 libpthread.so.1 libthr.so.1 1633 libpthread.so.2 libthr.so.2 1634 libkse.so.3 libthr.so.3 1635 163620080301: 1637 The layout of struct vmspace has changed. This affects libkvm 1638 and any executables that link against libkvm and use the 1639 kvm_getprocs() function. In particular, but not exclusively, 1640 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1641 The effects are minimal, but it's advisable to upgrade world 1642 nonetheless. 1643 164420080229: 1645 The latest em driver no longer has support in it for the 1646 82575 adapter, this is now moved to the igb driver. The 1647 split was done to make new features that are incompatible 1648 with older hardware easier to do. 1649 165020080220: 1651 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1652 likewise the kernel option is now GEOM_LINUX_LVM. 1653 165420080211: 1655 The default NFS mount mode has changed from UDP to TCP for 1656 increased reliability. If you rely on (insecurely) NFS 1657 mounting across a firewall you may need to update your 1658 firewall rules. 1659 166020080208: 1661 Belatedly note the addition of m_collapse for compacting 1662 mbuf chains. 1663 166420080126: 1665 The fts(3) structures have been changed to use adequate 1666 integer types for their members and so to be able to cope 1667 with huge file trees. The old fts(3) ABI is preserved 1668 through symbol versioning in libc, so third-party binaries 1669 using fts(3) should still work, although they will not take 1670 advantage of the extended types. At the same time, some 1671 third-party software might fail to build after this change 1672 due to unportable assumptions made in its source code about 1673 fts(3) structure members. Such software should be fixed 1674 by its vendor or, in the worst case, in the ports tree. 1675 FreeBSD_version 800015 marks this change for the unlikely 1676 case that a portable fix is impossible. 1677 167820080123: 1679 To upgrade to -current after this date, you must be running 1680 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1681 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1682 168320071128: 1684 The ADAPTIVE_GIANT kernel option has been retired because its 1685 functionality is the default now. 1686 168720071118: 1688 The AT keyboard emulation of sunkbd(4) has been turned on 1689 by default. In order to make the special symbols of the Sun 1690 keyboards driven by sunkbd(4) work under X these now have 1691 to be configured the same way as Sun USB keyboards driven 1692 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1693 1694 Option "XkbLayout" "us" 1695 Option "XkbRules" "xorg" 1696 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1697 169820071024: 1699 It has been decided that it is desirable to provide ABI 1700 backwards compatibility to the FreeBSD 4/5/6 versions of the 1701 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1702 broken with the introduction of PCI domain support (see the 1703 20070930 entry). Unfortunately, this required the ABI of 1704 PCIOCGETCONF to be broken again in order to be able to 1705 provide backwards compatibility to the old version of that 1706 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1707 again. As for prominent ports this affects neither pciutils 1708 nor xorg-server this time, the hal port needs to be rebuilt 1709 however. 1710 171120071020: 1712 The misnamed kthread_create() and friends have been renamed 1713 to kproc_create() etc. Many of the callers already 1714 used kproc_start().. 1715 I will return kthread_create() and friends in a while 1716 with implementations that actually create threads, not procs. 1717 Renaming corresponds with version 800002. 1718 171920071010: 1720 RELENG_7 branched. 1721 1722COMMON ITEMS: 1723 1724 General Notes 1725 ------------- 1726 Avoid using make -j when upgrading. While generally safe, there are 1727 sometimes problems using -j to upgrade. If your upgrade fails with 1728 -j, please try again without -j. From time to time in the past there 1729 have been problems using -j with buildworld and/or installworld. This 1730 is especially true when upgrading between "distant" versions (eg one 1731 that cross a major release boundary or several minor releases, or when 1732 several months have passed on the -current branch). 1733 1734 Sometimes, obscure build problems are the result of environment 1735 poisoning. This can happen because the make utility reads its 1736 environment when searching for values for global variables. To run 1737 your build attempts in an "environmental clean room", prefix all make 1738 commands with 'env -i '. See the env(1) manual page for more details. 1739 1740 When upgrading from one major version to another it is generally best 1741 to upgrade to the latest code in the currently installed branch first, 1742 then do an upgrade to the new branch. This is the best-tested upgrade 1743 path, and has the highest probability of being successful. Please try 1744 this approach before reporting problems with a major version upgrade. 1745 1746 ZFS notes 1747 --------- 1748 When upgrading the boot ZFS pool to a new version, always follow 1749 these two steps: 1750 1751 1.) recompile and reinstall the ZFS boot loader and boot block 1752 (this is part of "make buildworld" and "make installworld") 1753 1754 2.) update the ZFS boot block on your boot drive 1755 1756 The following example updates the ZFS boot block on the first 1757 partition (freebsd-boot) of a GPT partitioned drive ad0: 1758 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1759 1760 Non-boot pools do not need these updates. 1761 1762 To build a kernel 1763 ----------------- 1764 If you are updating from a prior version of FreeBSD (even one just 1765 a few days old), you should follow this procedure. It is the most 1766 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1767 1768 make kernel-toolchain 1769 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1770 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1771 1772 To test a kernel once 1773 --------------------- 1774 If you just want to boot a kernel once (because you are not sure 1775 if it works, or if you want to boot a known bad kernel to provide 1776 debugging information) run 1777 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1778 nextboot -k testkernel 1779 1780 To just build a kernel when you know that it won't mess you up 1781 -------------------------------------------------------------- 1782 This assumes you are already running a CURRENT system. Replace 1783 ${arch} with the architecture of your machine (e.g. "i386", 1784 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1785 1786 cd src/sys/${arch}/conf 1787 config KERNEL_NAME_HERE 1788 cd ../compile/KERNEL_NAME_HERE 1789 make depend 1790 make 1791 make install 1792 1793 If this fails, go to the "To build a kernel" section. 1794 1795 To rebuild everything and install it on the current system. 1796 ----------------------------------------------------------- 1797 # Note: sometimes if you are running current you gotta do more than 1798 # is listed here if you are upgrading from a really old current. 1799 1800 <make sure you have good level 0 dumps> 1801 make buildworld 1802 make kernel KERNCONF=YOUR_KERNEL_HERE 1803 [1] 1804 <reboot in single user> [3] 1805 mergemaster -p [5] 1806 make installworld 1807 mergemaster -i [4] 1808 make delete-old [6] 1809 <reboot> 1810 1811 1812 To cross-install current onto a separate partition 1813 -------------------------------------------------- 1814 # In this approach we use a separate partition to hold 1815 # current's root, 'usr', and 'var' directories. A partition 1816 # holding "/", "/usr" and "/var" should be about 2GB in 1817 # size. 1818 1819 <make sure you have good level 0 dumps> 1820 <boot into -stable> 1821 make buildworld 1822 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1823 <maybe newfs current's root partition> 1824 <mount current's root partition on directory ${CURRENT_ROOT}> 1825 make installworld DESTDIR=${CURRENT_ROOT} 1826 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1827 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1828 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1829 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1830 <reboot into current> 1831 <do a "native" rebuild/install as described in the previous section> 1832 <maybe install compatibility libraries from ports/misc/compat*> 1833 <reboot> 1834 1835 1836 To upgrade in-place from stable to current 1837 ---------------------------------------------- 1838 <make sure you have good level 0 dumps> 1839 make buildworld [9] 1840 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1841 [1] 1842 <reboot in single user> [3] 1843 mergemaster -p [5] 1844 make installworld 1845 mergemaster -i [4] 1846 make delete-old [6] 1847 <reboot> 1848 1849 Make sure that you've read the UPDATING file to understand the 1850 tweaks to various things you need. At this point in the life 1851 cycle of current, things change often and you are on your own 1852 to cope. The defaults can also change, so please read ALL of 1853 the UPDATING entries. 1854 1855 Also, if you are tracking -current, you must be subscribed to 1856 freebsd-current@freebsd.org. Make sure that before you update 1857 your sources that you have read and understood all the recent 1858 messages there. If in doubt, please track -stable which has 1859 much fewer pitfalls. 1860 1861 [1] If you have third party modules, such as vmware, you 1862 should disable them at this point so they don't crash your 1863 system on reboot. 1864 1865 [3] From the bootblocks, boot -s, and then do 1866 fsck -p 1867 mount -u / 1868 mount -a 1869 cd src 1870 adjkerntz -i # if CMOS is wall time 1871 Also, when doing a major release upgrade, it is required that 1872 you boot into single user mode to do the installworld. 1873 1874 [4] Note: This step is non-optional. Failure to do this step 1875 can result in a significant reduction in the functionality of the 1876 system. Attempting to do it by hand is not recommended and those 1877 that pursue this avenue should read this file carefully, as well 1878 as the archives of freebsd-current and freebsd-hackers mailing lists 1879 for potential gotchas. The -U option is also useful to consider. 1880 See mergemaster(8) for more information. 1881 1882 [5] Usually this step is a noop. However, from time to time 1883 you may need to do this if you get unknown user in the following 1884 step. It never hurts to do it all the time. You may need to 1885 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1886 install) after the buildworld before this step if you last updated 1887 from [78]-stable or 9-stable before 20130430. 1888 1889 [6] This only deletes old files and directories. Old libraries 1890 can be deleted by "make delete-old-libs", but you have to make 1891 sure that no program is using those libraries anymore. 1892 1893 [8] In order to have a kernel that can run the 4.x binaries needed to 1894 do an installworld, you must include the COMPAT_FREEBSD4 option in 1895 your kernel. Failure to do so may leave you with a system that is 1896 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1897 required to run the 5.x binaries on more recent kernels. And so on 1898 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1899 1900 Make sure that you merge any new devices from GENERIC since the 1901 last time you updated your kernel config file. 1902 1903 [9] When checking out sources, you must include the -P flag to have 1904 cvs prune empty directories. 1905 1906 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1907 "?=" instead of the "=" assignment operator, so that buildworld can 1908 override the CPUTYPE if it needs to. 1909 1910 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1911 not on the command line, or in /etc/make.conf. buildworld will 1912 warn if it is improperly defined. 1913FORMAT: 1914 1915This file contains a list, in reverse chronological order, of major 1916breakages in tracking -current. It is not guaranteed to be a complete 1917list of such breakages, and only contains entries since October 10, 2007. 1918If you need to see UPDATING entries from before that date, you will need 1919to fetch an UPDATING file from an older FreeBSD release. 1920 1921Copyright information: 1922 1923Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1924 1925Redistribution, publication, translation and use, with or without 1926modification, in full or in part, in any form or format of this 1927document are permitted without further permission from the author. 1928 1929THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1930IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1931WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1932DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1933INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1934(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1935SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1936HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1937STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1938IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1939POSSIBILITY OF SUCH DAMAGE. 1940 1941Contact Warner Losh if you have any questions about your use of 1942this document. 1943 1944$FreeBSD: releng/9.3/UPDATING 296953 2016-03-16 22:30:03Z glebius $ 1945