UPDATING revision 301049
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 1420160531 p43 FreeBSD-SA-16:20.linux 15 FreeBSD-SA-16:21.43bsd 16 FreeBSD-SA-16:22.libarchive 17 FreeBSD-SA-16:23.libarchive 18 19 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 20 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 21 Fix directory traversal in cpio(1). [SA-16:22] 22 Fix buffer overflow in libarchive(3). [SA-16:23] 23 2420160517 p42 FreeBSD-SA-16:18.atkbd 25 26 Fix buffer overflow in keyboard driver. [SA-16:18] 27 2820160504 p41 FreeBSD-SA-16:17.openssl 29 FreeBSD-EN-16:08.zfs 30 31 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 32 33 Fix memory leak in ZFS. [EN-16:08] 34 3520160429 p40 FreeBSD-SA-16:16.ntp 36 37 Fix multiple vulnerabilities of ntp. 38 3920160316 p39 FreeBSD-SA-16:14.openssh-xauth 40 FreeBSD-SA-16:15.sysarch 41 42 Fix OpenSSH xauth(1) command injection. [SA-16:14] 43 Fix incorrect argument validation in sysarch(2). [SA-16:15] 44 4520160310 p38 FreeBSD-SA-16:13.bind 46 FreeBSD-SA-16:12.openssl [revised] 47 48 Fix multiple vulnerabilities of BIND. [SA-16:13] 49 50 Fix a regression with OpenSSL patch. [SA-16:12] 51 5220160303 p37 FreeBSD-SA-16:12.openssl 53 54 Fix multiple vulnerabilities of OpenSSL. 55 5620160130 p36 FreeBSD-SA-16:11.openssl 57 58 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 59 6020160127 p35 FreeBSD-SA-16:08.bind 61 FreeBSD-SA-16:09.ntp 62 FreeBSD-SA-16:10.linux 63 64 Fix BIND remote denial of service vulnerability. [SA-16:08] 65 66 Fix multiple vulnerabilities of ntp. [SA-16:09] 67 68 Fix Linux compatibility layer issetugid(2) system call 69 vulnerability. [SA-16:10] 70 7120160114 p34 FreeBSD-SA-16:07.openssh 72 73 Fix OpenSSH client information leak. [SA-16:07] 74 7520160114 p33 FreeBSD-EN-16:02.pf 76 FreeBSD-EN-16:03.yplib 77 FreeBSD-SA-16:01.sctp 78 FreeBSD-SA-16:02.ntp 79 FreeBSD-SA-16:03.linux 80 FreeBSD-SA-16:04.linux 81 FreeBSD-SA-16:05.tcp 82 FreeBSD-SA-16:06.bsnmpd 83 84 Fix pf(4) generating bad TCP checksums. [EN-16:02] 85 Fix infinite loop in YP/NIS client library. [EN-16:03] 86 Fix remote denial of service in SCTP. [SA-16:01] 87 Update NTP to 4.2.8p5. [SA-16:02] 88 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 89 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 90 Fix crash in TCP MD5 signatures. [SA-16:05] 91 Fix insecure default permissions for snmpd.config. [SA-16:06] 92 9320151216 p32 FreeBSD-SA-15:27.bind 94 Fix BIND remote denial of service vulnerability. [SA-15:27] 95 9620151205 p31 FreeBSD-SA-15:26.openssl 97 98 Fix OpenSSL X509_ATTRIBUTE memory leak. [SA-15:26] 99 10020151104 p30 FreeBSD-SA-15:25.ntp [revised] 101 FreeBSD-EN-15:19.kqueue 102 FreeBSD-EN-15:20.vm 103 104 Fix regression of ntpq(8) utility exiting due to trap 6 in 105 9.3-RELEASE-p29. [SA-15:25] 106 107 Fix regression in ntpd(8) lacking support for RAWDCF reference 108 clock in 9.3-RELEASE-p29. [SA-15:25] 109 110 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 111 112 Fix applications exiting due to segmentation violation on a correct 113 memory address. [EN-15:20] 114 11520151026: p29 FreeBSD-SA-15:25.ntp 116 117 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 118 119 The configuration file syntax has been changed, thus mergemaster 120 run is recommended. Now the "kod" parameter requires "limited" 121 parameter. If the ntp.conf is not updated, the ntpd will run 122 successfully, but with KoD disabled. 123 12420151002: p28 FreeBSD-SA-15:24.rpcbind [revised] 125 Revised patch to address a regression that prevents NIS from working. 126 12720150929: p27 FreeBSD-SA-15:24.rpcbind 128 129 Fix rpcbind(8) remote denial of service. [SA-15:24] 130 13120150916: p26 FreeBSD-EN-15:18.pkg 132 133 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 134 13520150902: p25 FreeBSD-SA-15:23.bind 136 137 Fix BIND remote denial of service vulnerability. [SA-15:23] 138 13920150825: p24 FreeBSD-SA-15:21.amd64 140 FreeBSD-SA-15:22.openssh 141 FreeBSD-EN-15:15.pkg 142 143 Fix local privilege escalation in IRET handler. [SA-15:21] 144 145 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 146 147 Fix insufficient check of unsupported pkg(7) signature methods. 148 [EN-15:15] 149 15020150818: p23 FreeBSD-SA-15:20.expat 151 152 Fix multiple integer overflows in expat (libbsdxml) XML parser. 153 [SA-15:20] 154 15520150805: p22 FreeBSD-SA-15:19.routed 156 157 Fix routed remote denial of service vulnerability. 158 15920150728: p21 FreeBSD-SA-15:15.tcp 160 FreeBSD-SA-15:16.openssh 161 FreeBSD-SA-15:17.bind 162 163 Fix resource exhaustion in TCP reassembly. [SA-15:15] 164 165 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 166 167 Fix BIND remote denial of service vulnerability. [SA-15:17] 168 16920150721: p20 FreeBSD-SA-15:13.tcp 170 171 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 172 [SA-15:13] 173 17420150707: p19 FreeBSD-SA-15:11.bind 175 Fix BIND resolver remote denial of service when validating. 176 17720150630: p18 FreeBSD-EN-15:08.sendmail [revised] 178 FreeBSD-EN-15:09.xlocale 179 180 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 181 182 Fix inconsistency between locale and rune locale states. 183 [EN-15:09] 184 18520150618: p17 FreeBSD-EN-15:08.sendmail 186 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 187 18820150612: p16 FreeBSD-SA-15:10.openssl 189 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 190 19120150609: p15 FreeBSD-EN-15:06.file 192 193 Updated base system file(1) to 5.22 to address multiple denial 194 of service issues. 195 19620150513: p14 FreeBSD-EN-15:04.freebsd-update 197 198 Fix bug with freebsd-update(8) that does not ensure the previous 199 upgrade was completed. [EN-15:04] 200 20120150407: p13 FreeBSD-SA-15:04.igmp [revised] 202 FreeBSD-SA-15:07.ntp 203 FreeBSD-SA-15:09.ipv6 204 205 Improved patch for SA-15:04.igmp. 206 207 Fix multiple vulnerabilities of ntp. [SA-15:07] 208 209 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 210 21120150320: p12 212 Fix patch for SA-15:06.openssl. 213 21420150319: p11 FreeBSD-SA-15:06.openssl 215 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 216 21720150225: p10 FreeBSD-SA-15:04.igmp 218 FreeBSD-SA-15:05.bind 219 FreeBSD-EN-15:01.vt 220 FreeBSD-EN-15:02.openssl 221 FreeBSD-EN-15:03.freebsd-update 222 223 Fix integer overflow in IGMP protocol. [SA-15:04] 224 225 Fix BIND remote denial of service vulnerability. [SA-15:05] 226 227 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 228 229 Updated base system OpenSSL to 0.9.8zd. [EN-15:02] 230 231 Fix freebsd-update libraries update ordering issue. [EN-15:03] 232 23320150127: p9 FreeBSD-SA-15:02.kmem 234 FreeBSD-SA-15:03.sctp 235 236 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 237 vulnerability. [SA-15:02] 238 239 Fix SCTP stream reset vulnerability. [SA-15:03] 240 24120150114: p8 FreeBSD-SA-15:01.openssl 242 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 243 24420141223: p7 FreeBSD-SA-14:31.ntp 245 FreeBSD-EN-14:13.freebsd-update 246 247 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 248 Fix directory deletion issue in freebsd-update. [EN-14:13] 249 25020141210: p6 FreeBSD-SA-14:28.file 251 FreeBSD-SA-14:29.bind 252 253 Fix multiple vulnerabilities in file(1) and libmagic(3). 254 [SA-14:28] 255 256 Fix BIND remote denial of service vulnerability. [SA-14:29] 257 25820141104: p5 FreeBSD-SA-14:25.setlogin 259 FreeBSD-SA-14:26.ftp 260 FreeBSD-EN-14:12.zfs 261 262 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 263 [SA-14:25] 264 265 Fix remote command execution in ftp(1). [SA-14:26] 266 267 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 268 26920141022: p4 FreeBSD-EN-14:10.tzdata 270 FreeBSD-EN-14:11.crypt 271 272 Time zone data file update. [EN-14:10] 273 274 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 275 27620141021: p3 FreeBSD-SA-14:20.rtsold 277 FreeBSD-SA-14:21.routed 278 FreeBSD-SA-14:22.namei 279 FreeBSD-SA-14:23.openssl 280 281 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 282 283 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 284 285 Fix memory leak in sandboxed namei lookup. [SA-14:22] 286 287 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 288 28920140916: p2 FreeBSD-SA-14:19.tcp 290 Fix Denial of Service in TCP packet processing. [SA-14:19] 291 29220140909: p1 FreeBSD-SA-14:18.openssl 293 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 294 29520140716: 296 9.3-RELEASE. 297 29820140608: 299 On i386 and amd64 systems, the onifconsole flag is now set by default 300 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 301 as a login TTY if it is set in the bootloader as an active kernel 302 console. No changes in behavior should result otherwise. To revert to 303 the previous behavior, set ttyu0 to "off" in /etc/ttys. 304 30520140512: 306 Clang and llvm have been upgraded to 3.4.1 release. 307 30820140321: 309 Clang and llvm have been upgraded to 3.4 release. 310 31120140216: 312 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 313 been deprecated and will not be part of FreeBSD 11.0 and later 314 releases. If you use this driver, please consider switching to 315 the nfe(4) driver instead. 316 31720131216: 318 The behavior of gss_pseudo_random() for the krb5 mechanism 319 has changed, for applications requesting a longer random string 320 than produced by the underlying enctype's pseudo-random() function. 321 In particular, the random string produced from a session key of 322 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 323 be different at the 17th octet and later, after this change. 324 The counter used in the PRF+ construction is now encoded as a 325 big-endian integer in accordance with RFC 4402. 326 __FreeBSD_version is bumped to 902505. 327 32820130930: 329 9.2-RELEASE. 330 33120130823: 332 Behavior of devfs rules path matching has been changed. 333 Pattern is now always matched against fully qualified devfs 334 path and slash characters must be explicitly matched by 335 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 336 subdirectories must be reviewed. 337 33820130705: 339 hastctl(8)'s `status' command output changed to terse one-liner format. 340 Scripts using this should switch to `list' command or be rewritten. 341 34220130618: 343 Fix a bug that allowed a tracing process (e.g. gdb) to write 344 to a memory-mapped file in the traced process's address space 345 even if neither the traced process nor the tracing process had 346 write access to that file. 347 34820130605: 349 Added ZFS TRIM support which is enabled by default. To disable 350 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 351 352 Creating new ZFS pools and adding new devices to existing pools 353 first performs a full device level TRIM which can take a significant 354 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 355 to disable this behaviour. 356 357 ZFS TRIM requires the underlying device support BIO_DELETE which 358 is currently provided by methods such as ATA TRIM and SCSI UNMAP 359 via CAM, which are typically supported by SSD's. 360 361 Stats for ZFS TRIM can be monitored by looking at the sysctl's 362 under kstat.zfs.misc.zio_trim. 363 36420130524: 365 `list' command has been added to hastctl(8). For now, it is full 366 equivalent of `status' command. 367 WARNING: in the near future the output of hastctl's status command 368 will change to more terse format. If you use `hastctl status' 369 for parsing in your scripts, switch to `hastctl list'. 370 37120130430: 372 The mergemaster command now uses the default MAKEOBJDIRPREFIX 373 rather than creating it's own in the temporary directory in 374 order allow access to bootstrapped versions of tools such as 375 install and mtree. When upgrading from version of FreeBSD where 376 the install command does not support -l, you will need to 377 install a new mergemaster command if mergemaster -p is required. 378 This can be accomplished with the command (cd src/usr.sbin/mergemaster 379 && make install). 380 381 Due to the use of the new -l option to install(1) during build 382 and install, you must take care not to directly set the INSTALL 383 make variable in your /etc/make.conf, /etc/src.conf, or on the 384 command line. If you wish to use the -C flag for all installs 385 you may be able to add INSTALL+=-C to /etc/make.conf or 386 /etc/src.conf. 387 38820130429: 389 Fix a bug that allows NFS clients to issue READDIR on files. 390 39120130315: 392 The install(1) option -M has changed meaning and now takes an 393 argument that is a file or path to append logs to. In the 394 unlikely event that -M was the last option on the command line 395 and the command line contained at least two files and a target 396 directory the first file will have logs appended to it. The -M 397 option served little practical purpose in the last decade so it's 398 used expected to be extremely rare. 399 40020130225: 401 A new compression method (lz4) has been merged to. Please refer to 402 zpool-features(7) for more information. 403 404 Please refer to the "ZFS notes" section of this file for information 405 on upgrading boot ZFS pools. 406 40720121224: 408 The VFS KBI was changed with the merge of several nullfs 409 optimizations and fixes. All filesystem modules must be 410 recompiled. 411 41220121218: 413 With the addition of auditdistd(8), a new auditdistd user is now 414 depended on during installworld. "mergemaster -p" can be used to add 415 the user prior to installworld, as documented in the handbook. 416 41720121205: 418 9.1-RELEASE. 419 42020121129: 421 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 422 Starting with this version the old system of ZFS pool versioning 423 is superseded by "feature flags". This concept enables forward 424 compatibility against certain future changes in functionality of ZFS 425 pools. The first two read-only compatible "feature flags" for ZFS 426 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 427 For more information read the new zpool-features(7) manual page. 428 Please refer to the "ZFS notes" section of this file for information 429 on upgrading boot ZFS pools. 430 43120121114: 432 The commit introducing bsd.compiler.mk breaks the traditional 433 building of kernels before this point. Add -m ${SRC}/share/mk 434 (for the right value of SRC) to your command lines to work 435 around; update your useland to a point after this; or use the 436 buildkernel/installkernel top-level targets. See also 20120829. 437 43820121102: 439 The IPFIREWALL_FORWARD kernel option has been removed. Its 440 functionality now turned on by default. 441 44220120913: 443 The random(4) support for the VIA hardware random number 444 generator (`PADLOCK') is no longer enabled unconditionally. 445 Add the PADLOCK_RNG option in the custom kernel config if 446 needed. The GENERIC kernels on i386 and amd64 do include the 447 option, so the change only affects the custom kernel 448 configurations. 449 45020120829: 451 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 452 the traditional method, you must update your system with an installworld 453 before the kernel will build. The documented make buildkernel/installkernel 454 interfaces (coupled with fresh make kernel-toolchain) continue to work. 455 45620120727: 457 The sparc64 ZFS loader has been changed to no longer try to auto- 458 detect ZFS providers based on diskN aliases but now requires these 459 to be explicitly listed in the OFW boot-device environment variable. 460 46120120422: 462 Now unix domain sockets behave "as expected" on nullfs(5). Previously 463 nullfs(5) did not pass through all behaviours to the underlying layer, 464 as a result if we bound to a socket on the lower layer we could connect 465 only to the lower path; if we bound to the upper layer we could connect 466 only to the upper path. The new behavior is one can connect to both the 467 lower and the upper paths regardless what layer path one binds to. 468 46920120109: 470 The acpi_wmi(4) status device /dev/wmistat has been renamed to 471 /dev/wmistat0. 472 47320120106: 474 A new VOP_ADVISE() was added to support posix_fadvise(2). All 475 filesystem modules must be recompiled. 476 47720120106: 478 The interface of the VOP_VPTOCNP(9) changed, now the returned 479 vnode shall be referenced, previously it was required to be 480 only held. All in-tree filesystems are converted. 481 48220120106: 483 9.0-RELEASE. 484 48520111101: 486 The broken amd(4) driver has been replaced with esp(4) in the amd64, 487 i386 and pc98 GENERIC kernel configuration files. 488 48920110913: 490 This commit modifies vfs_register() so that it uses a hash 491 calculation to set vfc_typenum, which is enabled by default. 492 The first time a system is booted after this change, the 493 vfc_typenum values will change for all file systems. The 494 main effect of this is a change to the NFS server file handles 495 for file systems that use vfc_typenum in their fsid, such as ZFS. 496 It will, however, prevent vfc_typenum from changing when file 497 systems are loaded in a different order for subsequent reboots. 498 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 499 until you are ready to remount all NFS clients after a reboot. 500 50120110828: 502 Bump the shared library version numbers for libraries that 503 do not use symbol versioning, have changed the ABI compared 504 to stable/8 and which shared library version was not bumped. 505 Done as part of 9.0-RELEASE cycle. 506 50720110815: 508 During the merge of Capsicum features, the fget(9) KPI was modified. 509 This may require the rebuilding of out-of-tree device drivers -- 510 issues have been reported specifically with the nVidia device driver. 511 __FreeBSD_version is bumped to 900041. 512 513 Also, there is a period between 20110811 and 20110814 where the 514 special devices /dev/{stdin,stdout,stderr} did not work correctly. 515 Building world from a kernel during that window may not work. 516 51720110628: 518 The packet filter (pf) code has been updated to OpenBSD 4.5. 519 You need to update userland tools to be in sync with kernel. 520 This update breaks backward compatibility with earlier pfsync(4) 521 versions. Care must be taken when updating redundant firewall setups. 522 52320110608: 524 The following sysctls and tunables are retired on x86 platforms: 525 machdep.hlt_cpus 526 machdep.hlt_logical_cpus 527 The following sysctl is retired: 528 machdep.hyperthreading_allowed 529 The sysctls were supposed to provide a way to dynamically offline and 530 online selected CPUs on x86 platforms, but the implementation has not 531 been reliable especially with SCHED_ULE scheduler. 532 machdep.hyperthreading_allowed tunable is still available to ignore 533 hyperthreading CPUs at OS level. 534 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 535 where X is an APIC ID of a CPU. Be advised, though, that disabling 536 CPUs in non-uniform fashion will result in non-uniform topology and 537 may lead to sub-optimal system performance with SCHED_ULE, which is 538 a default scheduler. 539 54020110607: 541 cpumask_t type is retired and cpuset_t is used in order to describe 542 a mask of CPUs. 543 54420110531: 545 Changes to ifconfig(8) for dynamic address family detection mandate 546 that you are running a kernel of 20110525 or later. Make sure to 547 follow the update procedure to boot a new kernel before installing 548 world. 549 55020110513: 551 Support for sun4v architecture is officially dropped 552 55320110503: 554 Several KPI breaking changes have been committed to the mii(4) layer, 555 the PHY drivers and consequently some Ethernet drivers using mii(4). 556 This means that miibus.ko and the modules of the affected Ethernet 557 drivers need to be recompiled. 558 559 Note to kernel developers: Given that the OUI bit reversion problem 560 was fixed as part of these changes all mii(4) commits related to OUIs, 561 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 562 handling, no longer can be merged verbatim to stable/8 and previous 563 branches. 564 56520110430: 566 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 567 into their kernel configurations along with 'device pci'. 568 56920110427: 570 The default NFS client is now the new NFS client, so fstype "newnfs" 571 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 572 Although mounts via fstype "nfs" will usually work without userland 573 changes, it is recommended that the mount(8) and mount_nfs(8) 574 commands be rebuilt from sources and that a link to mount_nfs called 575 mount_oldnfs be created. The new client is compiled into the 576 kernel with "options NFSCL" and this is needed for diskless root 577 file systems. The GENERIC kernel configs have been changed to use 578 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 579 To use the regular/old client, you can "mount -t oldnfs ...". For 580 a diskless root file system, you must also include a line like: 581 582 vfs.root.mountfrom="oldnfs:" 583 584 in the boot/loader.conf on the root fs on the NFS server to make 585 a diskless root fs use the old client. 586 58720110424: 588 The GENERIC kernels for all architectures now default to the new 589 CAM-based ATA stack. It means that all legacy ATA drivers were 590 removed and replaced by respective CAM drivers. If you are using 591 ATA device names in /etc/fstab or other places, make sure to update 592 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 593 where 'Y's are the sequential numbers starting from zero for each type 594 in order of detection, unless configured otherwise with tunables, 595 see cam(4)). There will be symbolic links created in /dev/ to map 596 old adX devices to the respective adaY. They should provide basic 597 compatibility for file systems mounting in most cases, but they do 598 not support old user-level APIs and do not have respective providers 599 in GEOM. Consider using updated management tools with new device names. 600 601 It is possible to load devices ahci, ata, siis and mvs as modules, 602 but option ATA_CAM should remain in kernel configuration to make ata 603 module work as CAM driver supporting legacy ATA controllers. Device ata 604 still can be used in modular fashion (atacore + ...). Modules atadisk 605 and atapi* are not used and won't affect operation in ATA_CAM mode. 606 Note that to use CAM-based ATA kernel should include CAM devices 607 scbus, pass, da (or explicitly ada), cd and optionally others. All of 608 them are parts of the cam module. 609 610 ataraid(4) functionality is now supported by the RAID GEOM class. 611 To use it you can load geom_raid kernel module and use graid(8) tool 612 for management. Instead of /dev/arX device names, use /dev/raid/rX. 613 614 No kernel config options or code have been removed, so if a problem 615 arises, please report it and optionally revert to the old ATA stack. 616 In order to do it you can remove from the kernel config: 617 options ATA_CAM 618 device ahci 619 device mvs 620 device siis 621 , and instead add back: 622 device atadisk # ATA disk drives 623 device ataraid # ATA RAID drives 624 device atapicd # ATAPI CDROM drives 625 device atapifd # ATAPI floppy drives 626 device atapist # ATAPI tape drives 627 62820110423: 629 The default NFS server has been changed to the new server, which 630 was referred to as the experimental server. If you need to switch 631 back to the old NFS server, you must now put the "-o" option on 632 both the mountd and nfsd commands. This can be done using the 633 mountd_flags and nfs_server_flags rc.conf variables until an 634 update to the rc scripts is committed, which is coming soon. 635 63620110418: 637 The GNU Objective-C runtime library (libobjc), and other Objective-C 638 related components have been removed from the base system. If you 639 require an Objective-C library, please use one of the available ports. 640 64120110331: 642 ath(4) has been split into bus- and device- modules. if_ath contains 643 the HAL, the TX rate control and the network device code. if_ath_pci 644 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 645 contains the AHB glue. Users need to load both if_ath_pci and if_ath 646 in order to use ath on everything else. 647 648 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 649 need to load if_ath and if_ath_pci for ath(4) operation. 650 65120110314: 652 As part of the replacement of sysinstall, the process of building 653 release media has changed significantly. For details, please re-read 654 release(7), which has been updated to reflect the new build process. 655 65620110218: 657 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 658 is the last available version under GPLv2. It brings a number of new 659 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 660 4.1 and SSE 4.2), better support for powerpc64, a number of new 661 directives, and lots of other small improvements. See the ChangeLog 662 file in contrib/binutils for the full details. 663 66420110218: 665 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 666 compliant, and will now use half of hash for authentication. 667 This will break interoperability with all stacks (including all 668 actual FreeBSD versions) who implement 669 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 670 authentication). 671 The only workaround with such peers is to use another HMAC 672 algorithm for IPsec ("phase 2") authentication. 673 67420110207: 675 Remove the uio_yield prototype and symbol. This function has 676 been misnamed since it was introduced and should not be 677 globally exposed with this name. The equivalent functionality 678 is now available using kern_yield(curthread->td_user_pri). 679 The function remains undocumented. 680 68120110112: 682 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 683 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 684 for scalar sysctls is defined but disabled. Code that needs 685 UQUAD to pass the type checking that must compile on older 686 systems where the define is not present can check against 687 __FreeBSD_version >= 900030. 688 689 The system dialog(1) has been replaced with a new version previously 690 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 691 with the previous version, but the libdialog associated with it has 692 a largely incompatible API. As such, the original version of libdialog 693 will be kept temporarily as libodialog, until its base system consumers 694 are replaced or updated. Bump __FreeBSD_version to 900030. 695 69620110103: 697 If you are trying to run make universe on a -stable system, and you get 698 the following warning: 699 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 700 unknown. config(8) likely too old." 701 or something similar to it, then you must upgrade your -stable system 702 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 703 stable/8) or build the config from the latest stable/8 branch and 704 install it on your system. 705 706 Prior to this date, building a current universe on 8-stable system from 707 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 708 error in the first kernel build phase. A new config on those old 709 systems will fix that problem for older versions of -current. 710 71120101228: 712 The TCP stack has been modified to allow Khelp modules to interact with 713 it via helper hook points and store per-connection data in the TCP 714 control block. Bump __FreeBSD_version to 900029. User space tools that 715 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 716 be recompiled. 717 71820101114: 719 Generic IEEE 802.3 annex 31B full duplex flow control support has been 720 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 721 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 722 to take advantage of it instead of using custom implementations. This 723 means that these drivers now no longer unconditionally advertise 724 support for flow control but only do so if flow control is a selected 725 media option. This was implemented in the generic support that way in 726 order to allow flow control to be switched on and off via ifconfig(8) 727 with the PHY specific default to typically off in order to protect 728 from unwanted effects. Consequently, if you used flow control with 729 one of the above mentioned drivers you now need to explicitly enable 730 it, for example via: 731 ifconfig bge0 media auto mediaopt flowcontrol 732 733 Along with the above mentioned changes generic support for setting 734 1000baseT master mode also has been added and brgphy(4), ciphy(4), 735 e1000phy(4) as well as ip1000phy(4) have been converted to take 736 advantage of it. This means that these drivers now no longer take the 737 link0 parameter for selecting master mode but the master media option 738 has to be used instead, for example like in the following: 739 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 740 741 Selection of master mode now is also available with all other PHY 742 drivers supporting 1000baseT. 743 74420101111: 745 The TCP stack has received a significant update to add support for 746 modularised congestion control and generally improve the clarity of 747 congestion control decisions. Bump __FreeBSD_version to 900025. User 748 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 749 sockstat) need to be recompiled. 750 75120101002: 752 The man(1) utility has been replaced by a new version that no longer 753 uses /etc/manpath.config. Please consult man.conf(5) for how to 754 migrate local entries to the new format. 755 75620100928: 757 The copyright strings printed by login(1) and sshd(8) at the time of a 758 new connection have been removed to follow other operating systems and 759 upstream sshd. 760 76120100915: 762 A workaround for a fixed ld bug has been removed in kernel code, 763 so make sure that your system ld is built from sources after 764 revision 210245 from 2010-07-19 (r211583 if building head kernel 765 on stable/8, r211584 for stable/7; both from 2010-08-21). 766 A symptom of incorrect ld version is different addresses for 767 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 768 76920100913: 770 The $ipv6_prefer variable in rc.conf(5) has been split into 771 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 772 773 The $ip6addrctl_policy is a variable to choose a pre-defined 774 address selection policy set by ip6addrctl(8). A value 775 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 776 default is "AUTO". 777 778 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 779 flag (see an entry of 20090926) is set on an interface with no 780 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 781 security reason. If you want IPv6 link-local address on all 782 interfaces by default, set this to "YES". 783 784 The old ipv6_prefer="YES" is equivalent to 785 ipv6_activate_all_interfaces="YES" and 786 ip6addrctl_policy="ipv6_prefer". 787 78820100913: 789 DTrace has grown support for userland tracing. Due to this, DTrace is 790 now i386 and amd64 only. 791 dtruss(1) is now installed by default on those systems and a new 792 kernel module is needed for userland tracing: fasttrap. 793 No changes to your kernel config file are necessary to enable 794 userland tracing, but you might consider adding 'STRIP=' and 795 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 796 to have informative userland stack traces in DTrace (ustack). 797 79820100725: 799 The acpi_aiboost(4) driver has been removed in favor of the new 800 aibs(4) driver. You should update your kernel configuration file. 801 80220100722: 803 BSD grep has been imported to the base system and it is built by 804 default. It is completely BSD licensed, highly GNU-compatible, uses 805 less memory than its GNU counterpart and has a small codebase. 806 However, it is slower than its GNU counterpart, which is mostly 807 noticeable for larger searches, for smaller ones it is measurable 808 but not significant. The reason is complex, the most important factor 809 is that we lack a modern and efficient regex library and GNU 810 overcomes this by optimizing the searches internally. Future work 811 on improving the regex performance is planned, for the meantime, 812 users that need better performance, can build GNU grep instead by 813 setting the WITH_GNU_GREP knob. 814 81520100713: 816 Due to the import of powerpc64 support, all existing powerpc kernel 817 configuration files must be updated with a machine directive like this: 818 machine powerpc powerpc 819 820 In addition, an updated config(8) is required to build powerpc kernels 821 after this change. 822 82320100713: 824 A new version of ZFS (version 15) has been merged to -HEAD. 825 This version uses a python library for the following subcommands: 826 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 827 For full functionality of these commands the following port must 828 be installed: sysutils/py-zfs 829 83020100429: 831 'vm_page's are now hashed by physical address to an array of mutexes. 832 Currently this is only used to serialize access to hold_count. Over 833 time the page queue mutex will be peeled away. This changes the size 834 of pmap on every architecture. And requires all callers of vm_page_hold 835 and vm_page_unhold to be updated. 836 83720100402: 838 WITH_CTF can now be specified in src.conf (not recommended, there 839 are some problems with static executables), make.conf (would also 840 affect ports which do not use GNU make and do not override the 841 compile targets) or in the kernel config (via "makeoptions 842 WITH_CTF=yes"). 843 When WITH_CTF was specified there before this was silently ignored, 844 so make sure that WITH_CTF is not used in places which could lead 845 to unwanted behavior. 846 84720100311: 848 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 849 to allow 32-bit compatibility on non-x86 platforms. All kernel 850 configurations on amd64 and ia64 platforms using these options must 851 be modified accordingly. 852 85320100113: 854 The utmp user accounting database has been replaced with utmpx, 855 the user accounting interface standardized by POSIX. 856 Unfortunately the semantics of utmp and utmpx don't match, 857 making it practically impossible to support both interfaces. 858 The user accounting database is used by tools like finger(1), 859 last(1), talk(1), w(1) and ac(8). 860 861 All applications in the base system use utmpx. This means only 862 local binaries (e.g. from the ports tree) may still use these 863 utmp database files. These applications must be rebuilt to make 864 use of utmpx. 865 866 After the system has been upgraded, it is safe to remove the old 867 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 868 assuming their contents is of no importance anymore. Old wtmp 869 databases can only be used by last(1) and ac(8) after they have 870 been converted to the new format using wtmpcvt(1). 871 87220100108: 873 Introduce the kernel thread "deadlock resolver" (which can be enabled 874 via the DEADLKRES option, see NOTES for more details) and the 875 sleepq_type() function for sleepqueues. 876 87720091202: 878 The rc.firewall and rc.firewall6 were unified, and 879 rc.firewall6 and rc.d/ip6fw were removed. 880 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 881 variables are obsoleted. Instead, the following new rc 882 variables are added to rc.d/ipfw: 883 884 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 885 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 886 firewall_simple_onet_ipv6, firewall_trusted_ipv6 887 888 The meanings correspond to the relevant IPv4 variables. 889 89020091125: 891 8.0-RELEASE. 892 89320091113: 894 The default terminal emulation for syscons(4) has been changed 895 from cons25 to xterm on all platforms except pc98. This means 896 that the /etc/ttys file needs to be updated to ensure correct 897 operation of applications on the console. 898 899 The terminal emulation style can be toggled per window by using 900 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 901 options can be used to change the compile-time default back to 902 cons25. 903 904 To prevent graphical artifacts, make sure the TERM environment 905 variable is set to match the terminal emulation that is being 906 performed by syscons(4). 907 90820091109: 909 The layout of the structure ieee80211req_scan_result has changed. 910 Applications that require wireless scan results (e.g. ifconfig(8)) 911 from net80211 need to be recompiled. 912 913 Applications such as wpa_supplicant(8) may require a full world 914 build without using NO_CLEAN in order to get synchronized with the 915 new structure. 916 91720091025: 918 The iwn(4) driver has been updated to support the 5000 and 5150 series. 919 There's one kernel module for each firmware. Adding "device iwnfw" 920 to the kernel configuration file means including all three firmware 921 images inside the kernel. If you want to include just the one for 922 your wireless card, use the devices iwn4965fw, iwn5000fw or 923 iwn5150fw. 924 92520090926: 926 The rc.d/network_ipv6, IPv6 configuration script has been integrated 927 into rc.d/netif. The changes are the following: 928 929 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 930 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 931 Note that both variables need the "inet6" keyword at the head. 932 933 Do not set $ipv6_network_interfaces manually if you do not 934 understand what you are doing. It is not needed in most cases. 935 936 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 937 they are obsolete. 938 939 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 940 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 941 942 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 943 all configured interfaces have "inet6 accept_rtadv" in the 944 $ifconfig_IF_ipv6. These are for backward compatibility. 945 946 3. A new variable $ipv6_prefer has been added. If NO, IPv6 947 functionality of interfaces with no corresponding 948 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 949 and the default address selection policy of ip6addrctl(8) 950 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 951 Note that if you want to configure IPv6 functionality on the 952 disabled interfaces after boot, first you need to clear the flag by 953 using ifconfig(8) like: 954 955 ifconfig em0 inet6 -ifdisabled 956 957 If YES, the default address selection policy is set as 958 IPv6-preferred. 959 960 The default value of $ipv6_prefer is NO. 961 962 4. If your system need to receive Router Advertisement messages, 963 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 964 scripts automatically invoke rtsol(8) when the interface becomes 965 UP. The Router Advertisement messages are used for SLAAC 966 (State-Less Address AutoConfiguration). 967 96820090922: 969 802.11s D3.03 support was committed. This is incompatible with the 970 previous code, which was based on D3.0. 971 97220090912: 973 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 974 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 975 control whether accepting Router Advertisement messages or not. 976 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 977 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 978 The ifconfig(8) utility now supports these flags. 979 98020090910: 981 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 982 mount(8) and -a option for df(1) to see them. 983 98420090825: 985 The old tunable hw.bus.devctl_disable has been superseded by 986 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 987 replaced by hw.bus.devctl_queue=0. The default for this new tunable 988 is 1000. 989 99020090813: 991 Remove the option STOP_NMI. The default action is now to use NMI only 992 for KDB via the newly introduced function stop_cpus_hard() and 993 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 994 99520090803: 996 The stable/8 branch created in subversion. This corresponds to the 997 RELENG_8 branch in CVS. 998 99920090719: 1000 Bump the shared library version numbers for all libraries that do not 1001 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1002 __FreeBSD_version to 800105. 1003 100420090714: 1005 Due to changes in the implementation of virtual network stack support, 1006 all network-related kernel modules must be recompiled. As this change 1007 breaks the ABI, bump __FreeBSD_version to 800104. 1008 100920090713: 1010 The TOE interface to the TCP syncache has been modified to remove 1011 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1012 The cxgb driver is the only TOE consumer affected by this change, and 1013 needs to be recompiled along with the kernel. As this change breaks 1014 the ABI, bump __FreeBSD_version to 800103. 1015 101620090712: 1017 Padding has been added to struct tcpcb, sackhint and tcpstat in 1018 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1019 maintaining the ABI. However, this change breaks the ABI, so bump 1020 __FreeBSD_version to 800102. User space tools that rely on the size of 1021 any of these structs (e.g. sockstat) need to be recompiled. 1022 102320090630: 1024 The NFS_LEGACYRPC option has been removed along with the old kernel 1025 RPC implementation that this option selected. Kernel configurations 1026 may need to be adjusted. 1027 102820090629: 1029 The network interface device nodes at /dev/net/<interface> have been 1030 removed. All ioctl operations can be performed the normal way using 1031 routing sockets. The kqueue functionality can generally be replaced 1032 with routing sockets. 1033 103420090628: 1035 The documentation from the FreeBSD Documentation Project (Handbook, 1036 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1037 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1038 103920090624: 1040 The ABI of various structures related to the SYSV IPC API have been 1041 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1042 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1043 800100. 1044 104520090622: 1046 Layout of struct vnet has changed as routing related variables were 1047 moved to their own Vimage module. Modules need to be recompiled. Bump 1048 __FreeBSD_version to 800099. 1049 105020090619: 1051 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1052 respectively. As long as no more than 16 groups per process are used, 1053 no changes should be visible. When more than 16 groups are used, old 1054 binaries may fail if they call getgroups() or getgrouplist() with 1055 statically sized storage. Recompiling will work around this, but 1056 applications should be modified to use dynamically allocated storage 1057 for group arrays as POSIX.1-2008 does not cap an implementation's 1058 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1059 1060 NFS and portalfs mounts may also be affected as the list of groups is 1061 truncated to 16. Users of NFS who use more than 16 groups, should 1062 take care that negative group permissions are not used on the exported 1063 file systems as they will not be reliable unless a GSSAPI based 1064 authentication method is used. 1065 106620090616: 1067 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1068 option compiles in the support for adaptive spinning for lockmgrs 1069 which want to enable it. The lockinit() function now accepts the flag 1070 LK_ADAPTIVE in order to make the lock object subject to adaptive 1071 spinning when both held in write and read mode. 1072 107320090613: 1074 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1075 changed. User applications that use this ioctl need to be rebuilt. 1076 107720090611: 1078 The layout of struct thread has changed. Kernel and modules need to 1079 be rebuilt. 1080 108120090608: 1082 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1083 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1084 108520090602: 1086 window(1) has been removed from the base system. It can now be 1087 installed from ports. The port is called misc/window. 1088 108920090601: 1090 The way we are storing and accessing `routing table' entries has 1091 changed. Programs reading the FIB, like netstat, need to be 1092 re-compiled. 1093 109420090601: 1095 A new netisr implementation has been added for FreeBSD 8. Network 1096 file system modules, such as igmp, ipdivert, and others, should be 1097 rebuilt. 1098 Bump __FreeBSD_version to 800096. 1099 110020090530: 1101 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1102 more valid. 1103 110420090530: 1105 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1106 Bump __FreeBSD_version to 800094. 1107 110820090529: 1109 Add mnt_xflag field to 'struct mount'. File system modules need to be 1110 rebuilt. 1111 Bump __FreeBSD_version to 800093. 1112 111320090528: 1114 The compiling option ADAPTIVE_SX has been retired while it has been 1115 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1116 The KPI for sx_init_flags() changes as accepting flags: 1117 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1118 been introduced in order to handle the reversed logic. 1119 Bump __FreeBSD_version to 800092. 1120 112120090527: 1122 Add support for hierarchical jails. Remove global securelevel. 1123 Bump __FreeBSD_version to 800091. 1124 112520090523: 1126 The layout of struct vnet_net has changed, therefore modules 1127 need to be rebuilt. 1128 Bump __FreeBSD_version to 800090. 1129 113020090523: 1131 The newly imported zic(8) produces a new format in the output. Please 1132 run tzsetup(8) to install the newly created data to /etc/localtime. 1133 113420090520: 1135 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1136 hw.usb.* and is now consistent again with previous releases. 1137 113820090520: 1139 802.11 monitor mode support was revised and driver api's were changed. 1140 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1141 of DLT_IEEE802_11. No user-visible data structures were changed but 1142 applications that use DLT_IEEE802_11 may require changes. 1143 Bump __FreeBSD_version to 800088. 1144 114520090430: 1146 The layout of the following structs has changed: sysctl_oid, 1147 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1148 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1149 panics may be experienced. World rebuild is required for 1150 correctly checking networking state from userland. 1151 Bump __FreeBSD_version to 800085. 1152 115320090429: 1154 MLDv2 and Source-Specific Multicast (SSM) have been merged 1155 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1156 The implementation of SSM within FreeBSD's IPv6 stack closely 1157 follows the IPv4 implementation. 1158 1159 For kernel developers: 1160 1161 * The most important changes are that the ip6_output() and 1162 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1163 and this lock has been downgraded to a non-recursive mutex. 1164 1165 * As with the changes to the IPv4 stack to support SSM, filtering 1166 of inbound multicast traffic must now be performed by transport 1167 protocols within the IPv6 stack. This does not apply to TCP and 1168 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1169 1170 * The KPIs used by IPv6 multicast are similar to those used by 1171 the IPv4 stack, with the following differences: 1172 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1173 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1174 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1175 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1176 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1177 for MLDv1 have an additional 'timer' argument which is used to 1178 jitter the initial membership report for the solicited-node 1179 multicast membership on-link. 1180 * This is not strictly needed for MLDv2, which already jitters 1181 its report transmissions. However, the 'timer' argument is 1182 preserved in case MLDv1 is active on the interface. 1183 1184 * The KAME linked-list based IPv6 membership implementation has 1185 been refactored to use a vector similar to that used by the IPv4 1186 stack. 1187 Code which maintains a list of its own multicast memberships 1188 internally, e.g. carp, has been updated to reflect the new 1189 semantics. 1190 1191 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1192 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1193 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1194 implementation constraint which needs to be addressed in HEAD. 1195 1196 For application developers: 1197 1198 * The changes are broadly similar to those made for the IPv4 1199 stack. 1200 1201 * The use of IPv4 and IPv6 multicast socket options on the same 1202 socket, using mapped addresses, HAS NOT been tested or supported. 1203 1204 * There are a number of issues with the implementation of various 1205 IPv6 multicast APIs which need to be resolved in the API surface 1206 before the implementation is fully compatible with KAME userland 1207 use, and these are mostly to do with interface index treatment. 1208 1209 * The literature available discusses the use of either the delta / ASM 1210 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1211 using setsourcefilter(3)/getsourcefilter(3). For more information 1212 please refer to RFC 3768, 'Socket Interface Extensions for 1213 Multicast Source Filters'. 1214 1215 * Applications which use the published RFC 3678 APIs should be fine. 1216 1217 For systems administrators: 1218 1219 * The mtest(8) utility has been refactored to support IPv6, in 1220 addition to IPv4. Interface addresses are no longer accepted 1221 as arguments, their names must be used instead. The utility 1222 will map the interface name to its first IPv4 address as 1223 returned by getifaddrs(3). 1224 1225 * The ifmcstat(8) utility has also been updated to print the MLDv2 1226 endpoint state and source filter lists via sysctl(3). 1227 1228 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1229 loopback of IPv6 multicast datagrams by default; it defaults to 1 1230 to preserve the existing behaviour. Disabling multicast loopback is 1231 recommended for optimal system performance. 1232 1233 * The IPv6 MROUTING code has been changed to examine this sysctl 1234 instead of attempting to perform a group lookup before looping 1235 back forwarded datagrams. 1236 1237 Bump __FreeBSD_version to 800084. 1238 123920090422: 1240 Implement low-level Bluetooth HCI API. 1241 Bump __FreeBSD_version to 800083. 1242 124320090419: 1244 The layout of struct malloc_type, used by modules to register new 1245 memory allocation types, has changed. Most modules will need to 1246 be rebuilt or panics may be experienced. 1247 Bump __FreeBSD_version to 800081. 1248 124920090415: 1250 Anticipate overflowing inp_flags - add inp_flags2. 1251 This changes most offsets in inpcb, so checking v4 connection 1252 state will require a world rebuild. 1253 Bump __FreeBSD_version to 800080. 1254 125520090415: 1256 Add an llentry to struct route and struct route_in6. Modules 1257 embedding a struct route will need to be recompiled. 1258 Bump __FreeBSD_version to 800079. 1259 126020090414: 1261 The size of rt_metrics_lite and by extension rtentry has changed. 1262 Networking administration apps will need to be recompiled. 1263 The route command now supports show as an alias for get, weighting 1264 of routes, sticky and nostick flags to alter the behavior of stateful 1265 load balancing. 1266 Bump __FreeBSD_version to 800078. 1267 126820090408: 1269 Do not use Giant for kbdmux(4) locking. This is wrong and 1270 apparently causing more problems than it solves. This will 1271 re-open the issue where interrupt handlers may race with 1272 kbdmux(4) in polling mode. Typical symptoms include (but 1273 not limited to) duplicated and/or missing characters when 1274 low level console functions (such as gets) are used while 1275 interrupts are enabled (for example geli password prompt, 1276 mountroot prompt etc.). Disabling kbdmux(4) may help. 1277 127820090407: 1279 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1280 kernel modules referencing any of the above need to be recompiled. 1281 Bump __FreeBSD_version to 800075. 1282 128320090320: 1284 GEOM_PART has become the default partition slicer for storage devices, 1285 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1286 introduces some changes: 1287 1288 MSDOS/EBR: the devices created from MSDOS extended partition entries 1289 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1290 to devices with offset-based names. fstabs may need to be modified. 1291 1292 BSD: the "geometry does not match label" warning is harmless in most 1293 cases but it points to problems in file system misalignment with 1294 disk geometry. The "c" partition is now implicit, covers the whole 1295 top-level drive and cannot be (mis)used by users. 1296 1297 General: Kernel dumps are now not allowed to be written to devices 1298 whose partition types indicate they are meant to be used for file 1299 systems (or, in case of MSDOS partitions, as something else than 1300 the "386BSD" type). 1301 1302 Most of these changes date approximately from 200812. 1303 130420090319: 1305 The uscanner(4) driver has been removed from the kernel. This follows 1306 Linux removing theirs in 2.6 and making libusb the default interface 1307 (supported by sane). 1308 130920090319: 1310 The multicast forwarding code has been cleaned up. netstat(1) 1311 only relies on KVM now for printing bandwidth upcall meters. 1312 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1313 ip6_mroute_mod respectively. The config(5) options for statically 1314 compiling this code remain the same, i.e. 'options MROUTING'. 1315 131620090315: 1317 Support for the IFF_NEEDSGIANT network interface flag has been 1318 removed, which means that non-MPSAFE network device drivers are no 1319 longer supported. In particular, if_ar, if_sr, and network device 1320 drivers from the old (legacy) USB stack can no longer be built or 1321 used. 1322 132320090313: 1324 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1325 a bunch of new language catalog files have also been added. 1326 This means that some common libc messages are now localized and 1327 they depend on the LC_MESSAGES environmental variable. 1328 132920090313: 1330 The k8temp(4) driver has been renamed to amdtemp(4) since 1331 support for Family 10 and Family 11 CPU families was added. 1332 133320090309: 1334 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1335 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1336 1337 For kernel developers, the most important changes are that the 1338 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1339 and this lock has been downgraded to a non-recursive mutex. 1340 1341 Transport protocols (UDP, Raw IP) are now responsible for filtering 1342 inbound multicast traffic according to group membership and source 1343 filters. The imo_multicast_filter() KPI exists for this purpose. 1344 Transports which do not use multicast (SCTP, TCP) already reject 1345 multicast by default. Forwarding and receive performance may improve 1346 as a mutex acquisition is no longer needed in the ip_input() 1347 low-level input path. in_addmulti() and in_delmulti() are shimmed 1348 to new KPIs which exist to support SSM in-kernel. 1349 1350 For application developers, it is recommended that loopback of 1351 multicast datagrams be disabled for best performance, as this 1352 will still cause the lock to be taken for each looped-back 1353 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1354 be tuned to 0 to disable loopback by default; it defaults to 1 1355 to preserve the existing behaviour. 1356 1357 For systems administrators, to obtain best performance with 1358 multicast reception and multiple groups, it is always recommended 1359 that a card with a suitably precise hash filter is used. Hash 1360 collisions will still result in the lock being taken within the 1361 transport protocol input path to check group membership. 1362 1363 If deploying FreeBSD in an environment with IGMP snooping switches, 1364 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1365 enabled; this forces 224.0.0.0/24 group membership to be announced 1366 via IGMP. 1367 1368 The size of 'struct igmpstat' has changed; netstat needs to be 1369 recompiled to reflect this. 1370 Bump __FreeBSD_version to 800070. 1371 137220090309: 1373 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1374 updated to use it. This requires a buildworld/installworld in order to 1375 update the library and dependencies (usbconfig, etc). Its advisable to 1376 rebuild all ports which uses libusb. More specific directions are given 1377 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1378 libusb are no longer required and can be removed. 1379 138020090302: 1381 A workaround is committed to allow the creation of System V shared 1382 memory segment of size > 2 GB on the 64-bit architectures. 1383 Due to a limitation of the existing ABI, the shm_segsz member 1384 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1385 wrong for large segments. Note that limits must be explicitly 1386 raised to allow such segments to be created. 1387 138820090301: 1389 The layout of struct ifnet has changed, requiring a rebuild of all 1390 network device driver modules. 1391 139220090227: 1393 The /dev handling for the new USB stack has changed, a 1394 buildworld/installworld is required for libusb20. 1395 139620090223: 1397 The new USB2 stack has now been permanently moved in and all kernel and 1398 module names reverted to their previous values (eg, usb, ehci, ohci, 1399 ums, ...). The old usb stack can be compiled in by prefixing the name 1400 with the letter 'o', the old usb modules have been removed. 1401 Updating entry 20090216 for xorg and 20090215 for libmap may still 1402 apply. 1403 140420090217: 1405 The rc.conf(5) option if_up_delay has been renamed to 1406 defaultroute_delay to better reflect its purpose. If you have 1407 customized this setting in /etc/rc.conf you need to update it to 1408 use the new name. 1409 141020090216: 1411 xorg 7.4 wants to configure its input devices via hald which does not 1412 yet work with USB2. If the keyboard/mouse does not work in xorg then 1413 add 1414 Option "AllowEmptyInput" "off" 1415 to your ServerLayout section. This will cause X to use the configured 1416 kbd and mouse sections from your xorg.conf. 1417 141820090215: 1419 The GENERIC kernels for all architectures now default to the new USB2 1420 stack. No kernel config options or code have been removed so if a 1421 problem arises please report it and optionally revert to the old USB 1422 stack. If you are loading USB kernel modules or have a custom kernel 1423 that includes GENERIC then ensure that usb names are also changed over, 1424 eg uftdi -> usb2_serial_ftdi. 1425 1426 Older programs linked against the ports libusb 0.1 need to be 1427 redirected to the new stack's libusb20. /etc/libmap.conf can 1428 be used for this: 1429 # Map old usb library to new one for usb2 stack 1430 libusb-0.1.so.8 libusb20.so.1 1431 143220090209: 1433 All USB ethernet devices now attach as interfaces under the name ueN 1434 (eg. ue0). This is to provide a predictable name as vendors often 1435 change usb chipsets in a product without notice. 1436 143720090203: 1438 The ichsmb(4) driver has been changed to require SMBus slave 1439 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1440 All of the other SMBus controller drivers require left-justified 1441 slave addresses, so this change makes all the drivers provide the 1442 same interface. 1443 144420090201: 1445 INET6 statistics (struct ip6stat) was updated. 1446 netstat(1) needs to be recompiled. 1447 144820090119: 1449 NTFS has been removed from GENERIC kernel on amd64 to match 1450 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1451 will load ntfs.ko module automatically when NTFS support is 1452 actually needed, unless ntfs.ko is not installed or security 1453 level prohibits loading kernel modules. If either is the case, 1454 "options NTFS" has to be added into kernel config. 1455 145620090115: 1457 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1458 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1459 800061. User space tools that rely on the size of struct tcpcb in 1460 tcp_var.h (e.g. sockstat) need to be recompiled. 1461 146220081225: 1463 ng_tty(4) module updated to match the new TTY subsystem. 1464 Due to API change, user-level applications must be updated. 1465 New API support added to mpd5 CVS and expected to be present 1466 in next mpd5.3 release. 1467 146820081219: 1469 With __FreeBSD_version 800060 the makefs tool is part of 1470 the base system (it was a port). 1471 147220081216: 1473 The afdata and ifnet locks have been changed from mutexes to 1474 rwlocks, network modules will need to be re-compiled. 1475 147620081214: 1477 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1478 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1479 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1480 architecture and 40 bytes on 64-bit architecture. The userland 1481 applications "arp" and "ndp" have been updated accordingly. 1482 The output from "netstat -r" shows only routing entries and 1483 none of the L2 information. 1484 148520081130: 1486 __FreeBSD_version 800057 marks the switchover from the 1487 binary ath hal to source code. Users must add the line: 1488 1489 options AH_SUPPORT_AR5416 1490 1491 to their kernel config files when specifying: 1492 1493 device ath_hal 1494 1495 The ath_hal module no longer exists; the code is now compiled 1496 together with the driver in the ath module. It is now 1497 possible to tailor chip support (i.e. reduce the set of chips 1498 and thereby the code size); consult ath_hal(4) for details. 1499 150020081121: 1501 __FreeBSD_version 800054 adds memory barriers to 1502 <machine/atomic.h>, new interfaces to ifnet to facilitate 1503 multiple hardware transmit queues for cards that support 1504 them, and a lock-less ring-buffer implementation to 1505 enable drivers to more efficiently manage queueing of 1506 packets. 1507 150820081117: 1509 A new version of ZFS (version 13) has been merged to -HEAD. 1510 This version has zpool attribute "listsnapshots" off by 1511 default, which means "zfs list" does not show snapshots, 1512 and is the same as Solaris behavior. 1513 151420081028: 1515 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1516 151720081009: 1518 The uhci, ohci, ehci and slhci USB Host controller drivers have 1519 been put into separate modules. If you load the usb module 1520 separately through loader.conf you will need to load the 1521 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1522 controller add the following to loader.conf: 1523 1524 uhci_load="YES" 1525 ehci_load="YES" 1526 152720081009: 1528 The ABI used by the PMC toolset has changed. Please keep 1529 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1530 sync. 1531 153220081009: 1533 atapci kernel module now includes only generic PCI ATA 1534 driver. AHCI driver moved to ataahci kernel module. 1535 All vendor-specific code moved into separate kernel modules: 1536 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1537 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1538 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1539 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1540 154120080820: 1542 The TTY subsystem of the kernel has been replaced by a new 1543 implementation, which provides better scalability and an 1544 improved driver model. Most common drivers have been migrated to 1545 the new TTY subsystem, while others have not. The following 1546 drivers have not yet been ported to the new TTY layer: 1547 1548 PCI/ISA: 1549 cy, digi, rc, rp, sio 1550 1551 USB: 1552 ubser, ucycom 1553 1554 Line disciplines: 1555 ng_h4, ng_tty, ppp, sl, snp 1556 1557 Adding these drivers to your kernel configuration file shall 1558 cause compilation to fail. 1559 156020080818: 1561 ntpd has been upgraded to 4.2.4p5. 1562 156320080801: 1564 OpenSSH has been upgraded to 5.1p1. 1565 1566 For many years, FreeBSD's version of OpenSSH preferred DSA 1567 over RSA for host and user authentication keys. With this 1568 upgrade, we've switched to the vendor's default of RSA over 1569 DSA. This may cause upgraded clients to warn about unknown 1570 host keys even for previously known hosts. Users should 1571 follow the usual procedure for verifying host keys before 1572 accepting the RSA key. 1573 1574 This can be circumvented by setting the "HostKeyAlgorithms" 1575 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1576 command line. 1577 1578 Please note that the sequence of keys offered for 1579 authentication has been changed as well. You may want to 1580 specify IdentityFile in a different order to revert this 1581 behavior. 1582 158320080713: 1584 The sio(4) driver has been removed from the i386 and amd64 1585 kernel configuration files. This means uart(4) is now the 1586 default serial port driver on those platforms as well. 1587 1588 To prevent collisions with the sio(4) driver, the uart(4) driver 1589 uses different names for its device nodes. This means the 1590 onboard serial port will now most likely be called "ttyu0" 1591 instead of "ttyd0". You may need to reconfigure applications to 1592 use the new device names. 1593 1594 When using the serial port as a boot console, be sure to update 1595 /boot/device.hints and /etc/ttys before booting the new kernel. 1596 If you forget to do so, you can still manually specify the hints 1597 at the loader prompt: 1598 1599 set hint.uart.0.at="isa" 1600 set hint.uart.0.port="0x3F8" 1601 set hint.uart.0.flags="0x10" 1602 set hint.uart.0.irq="4" 1603 boot -s 1604 160520080609: 1606 The gpt(8) utility has been removed. Use gpart(8) to partition 1607 disks instead. 1608 160920080603: 1610 The version that Linuxulator emulates was changed from 2.4.2 1611 to 2.6.16. If you experience any problems with Linux binaries 1612 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1613 if it fixes the problem contact emulation mailing list. 1614 161520080525: 1616 ISDN4BSD (I4B) was removed from the src tree. You may need to 1617 update a your kernel configuration and remove relevant entries. 1618 161920080509: 1620 I have checked in code to support multiple routing tables. 1621 See the man pages setfib(1) and setfib(2). 1622 This is a hopefully backwards compatible version, 1623 but to make use of it you need to compile your kernel 1624 with options ROUTETABLES=2 (or more up to 16). 1625 162620080420: 1627 The 802.11 wireless support was redone to enable multi-bss 1628 operation on devices that are capable. The underlying device 1629 is no longer used directly but instead wlanX devices are 1630 cloned with ifconfig. This requires changes to rc.conf files. 1631 For example, change: 1632 ifconfig_ath0="WPA DHCP" 1633 to 1634 wlans_ath0=wlan0 1635 ifconfig_wlan0="WPA DHCP" 1636 see rc.conf(5) for more details. In addition, mergemaster of 1637 /etc/rc.d is highly recommended. Simultaneous update of userland 1638 and kernel wouldn't hurt either. 1639 1640 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1641 modules were merged into the base wlan module. All references 1642 to these modules (e.g. in kernel config files) must be removed. 1643 164420080408: 1645 psm(4) has gained write(2) support in native operation level. 1646 Arbitrary commands can be written to /dev/psm%d and status can 1647 be read back from it. Therefore, an application is responsible 1648 for status validation and error recovery. It is a no-op in 1649 other operation levels. 1650 165120080312: 1652 Support for KSE threading has been removed from the kernel. To 1653 run legacy applications linked against KSE libmap.conf may 1654 be used. The following libmap.conf may be used to ensure 1655 compatibility with any prior release: 1656 1657 libpthread.so.1 libthr.so.1 1658 libpthread.so.2 libthr.so.2 1659 libkse.so.3 libthr.so.3 1660 166120080301: 1662 The layout of struct vmspace has changed. This affects libkvm 1663 and any executables that link against libkvm and use the 1664 kvm_getprocs() function. In particular, but not exclusively, 1665 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1666 The effects are minimal, but it's advisable to upgrade world 1667 nonetheless. 1668 166920080229: 1670 The latest em driver no longer has support in it for the 1671 82575 adapter, this is now moved to the igb driver. The 1672 split was done to make new features that are incompatible 1673 with older hardware easier to do. 1674 167520080220: 1676 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1677 likewise the kernel option is now GEOM_LINUX_LVM. 1678 167920080211: 1680 The default NFS mount mode has changed from UDP to TCP for 1681 increased reliability. If you rely on (insecurely) NFS 1682 mounting across a firewall you may need to update your 1683 firewall rules. 1684 168520080208: 1686 Belatedly note the addition of m_collapse for compacting 1687 mbuf chains. 1688 168920080126: 1690 The fts(3) structures have been changed to use adequate 1691 integer types for their members and so to be able to cope 1692 with huge file trees. The old fts(3) ABI is preserved 1693 through symbol versioning in libc, so third-party binaries 1694 using fts(3) should still work, although they will not take 1695 advantage of the extended types. At the same time, some 1696 third-party software might fail to build after this change 1697 due to unportable assumptions made in its source code about 1698 fts(3) structure members. Such software should be fixed 1699 by its vendor or, in the worst case, in the ports tree. 1700 FreeBSD_version 800015 marks this change for the unlikely 1701 case that a portable fix is impossible. 1702 170320080123: 1704 To upgrade to -current after this date, you must be running 1705 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1706 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1707 170820071128: 1709 The ADAPTIVE_GIANT kernel option has been retired because its 1710 functionality is the default now. 1711 171220071118: 1713 The AT keyboard emulation of sunkbd(4) has been turned on 1714 by default. In order to make the special symbols of the Sun 1715 keyboards driven by sunkbd(4) work under X these now have 1716 to be configured the same way as Sun USB keyboards driven 1717 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1718 1719 Option "XkbLayout" "us" 1720 Option "XkbRules" "xorg" 1721 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1722 172320071024: 1724 It has been decided that it is desirable to provide ABI 1725 backwards compatibility to the FreeBSD 4/5/6 versions of the 1726 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1727 broken with the introduction of PCI domain support (see the 1728 20070930 entry). Unfortunately, this required the ABI of 1729 PCIOCGETCONF to be broken again in order to be able to 1730 provide backwards compatibility to the old version of that 1731 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1732 again. As for prominent ports this affects neither pciutils 1733 nor xorg-server this time, the hal port needs to be rebuilt 1734 however. 1735 173620071020: 1737 The misnamed kthread_create() and friends have been renamed 1738 to kproc_create() etc. Many of the callers already 1739 used kproc_start().. 1740 I will return kthread_create() and friends in a while 1741 with implementations that actually create threads, not procs. 1742 Renaming corresponds with version 800002. 1743 174420071010: 1745 RELENG_7 branched. 1746 1747COMMON ITEMS: 1748 1749 General Notes 1750 ------------- 1751 Avoid using make -j when upgrading. While generally safe, there are 1752 sometimes problems using -j to upgrade. If your upgrade fails with 1753 -j, please try again without -j. From time to time in the past there 1754 have been problems using -j with buildworld and/or installworld. This 1755 is especially true when upgrading between "distant" versions (eg one 1756 that cross a major release boundary or several minor releases, or when 1757 several months have passed on the -current branch). 1758 1759 Sometimes, obscure build problems are the result of environment 1760 poisoning. This can happen because the make utility reads its 1761 environment when searching for values for global variables. To run 1762 your build attempts in an "environmental clean room", prefix all make 1763 commands with 'env -i '. See the env(1) manual page for more details. 1764 1765 When upgrading from one major version to another it is generally best 1766 to upgrade to the latest code in the currently installed branch first, 1767 then do an upgrade to the new branch. This is the best-tested upgrade 1768 path, and has the highest probability of being successful. Please try 1769 this approach before reporting problems with a major version upgrade. 1770 1771 ZFS notes 1772 --------- 1773 When upgrading the boot ZFS pool to a new version, always follow 1774 these two steps: 1775 1776 1.) recompile and reinstall the ZFS boot loader and boot block 1777 (this is part of "make buildworld" and "make installworld") 1778 1779 2.) update the ZFS boot block on your boot drive 1780 1781 The following example updates the ZFS boot block on the first 1782 partition (freebsd-boot) of a GPT partitioned drive ad0: 1783 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1784 1785 Non-boot pools do not need these updates. 1786 1787 To build a kernel 1788 ----------------- 1789 If you are updating from a prior version of FreeBSD (even one just 1790 a few days old), you should follow this procedure. It is the most 1791 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1792 1793 make kernel-toolchain 1794 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1795 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1796 1797 To test a kernel once 1798 --------------------- 1799 If you just want to boot a kernel once (because you are not sure 1800 if it works, or if you want to boot a known bad kernel to provide 1801 debugging information) run 1802 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1803 nextboot -k testkernel 1804 1805 To just build a kernel when you know that it won't mess you up 1806 -------------------------------------------------------------- 1807 This assumes you are already running a CURRENT system. Replace 1808 ${arch} with the architecture of your machine (e.g. "i386", 1809 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1810 1811 cd src/sys/${arch}/conf 1812 config KERNEL_NAME_HERE 1813 cd ../compile/KERNEL_NAME_HERE 1814 make depend 1815 make 1816 make install 1817 1818 If this fails, go to the "To build a kernel" section. 1819 1820 To rebuild everything and install it on the current system. 1821 ----------------------------------------------------------- 1822 # Note: sometimes if you are running current you gotta do more than 1823 # is listed here if you are upgrading from a really old current. 1824 1825 <make sure you have good level 0 dumps> 1826 make buildworld 1827 make kernel KERNCONF=YOUR_KERNEL_HERE 1828 [1] 1829 <reboot in single user> [3] 1830 mergemaster -p [5] 1831 make installworld 1832 mergemaster -i [4] 1833 make delete-old [6] 1834 <reboot> 1835 1836 1837 To cross-install current onto a separate partition 1838 -------------------------------------------------- 1839 # In this approach we use a separate partition to hold 1840 # current's root, 'usr', and 'var' directories. A partition 1841 # holding "/", "/usr" and "/var" should be about 2GB in 1842 # size. 1843 1844 <make sure you have good level 0 dumps> 1845 <boot into -stable> 1846 make buildworld 1847 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1848 <maybe newfs current's root partition> 1849 <mount current's root partition on directory ${CURRENT_ROOT}> 1850 make installworld DESTDIR=${CURRENT_ROOT} 1851 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1852 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1853 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1854 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1855 <reboot into current> 1856 <do a "native" rebuild/install as described in the previous section> 1857 <maybe install compatibility libraries from ports/misc/compat*> 1858 <reboot> 1859 1860 1861 To upgrade in-place from stable to current 1862 ---------------------------------------------- 1863 <make sure you have good level 0 dumps> 1864 make buildworld [9] 1865 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1866 [1] 1867 <reboot in single user> [3] 1868 mergemaster -p [5] 1869 make installworld 1870 mergemaster -i [4] 1871 make delete-old [6] 1872 <reboot> 1873 1874 Make sure that you've read the UPDATING file to understand the 1875 tweaks to various things you need. At this point in the life 1876 cycle of current, things change often and you are on your own 1877 to cope. The defaults can also change, so please read ALL of 1878 the UPDATING entries. 1879 1880 Also, if you are tracking -current, you must be subscribed to 1881 freebsd-current@freebsd.org. Make sure that before you update 1882 your sources that you have read and understood all the recent 1883 messages there. If in doubt, please track -stable which has 1884 much fewer pitfalls. 1885 1886 [1] If you have third party modules, such as vmware, you 1887 should disable them at this point so they don't crash your 1888 system on reboot. 1889 1890 [3] From the bootblocks, boot -s, and then do 1891 fsck -p 1892 mount -u / 1893 mount -a 1894 cd src 1895 adjkerntz -i # if CMOS is wall time 1896 Also, when doing a major release upgrade, it is required that 1897 you boot into single user mode to do the installworld. 1898 1899 [4] Note: This step is non-optional. Failure to do this step 1900 can result in a significant reduction in the functionality of the 1901 system. Attempting to do it by hand is not recommended and those 1902 that pursue this avenue should read this file carefully, as well 1903 as the archives of freebsd-current and freebsd-hackers mailing lists 1904 for potential gotchas. The -U option is also useful to consider. 1905 See mergemaster(8) for more information. 1906 1907 [5] Usually this step is a noop. However, from time to time 1908 you may need to do this if you get unknown user in the following 1909 step. It never hurts to do it all the time. You may need to 1910 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1911 install) after the buildworld before this step if you last updated 1912 from [78]-stable or 9-stable before 20130430. 1913 1914 [6] This only deletes old files and directories. Old libraries 1915 can be deleted by "make delete-old-libs", but you have to make 1916 sure that no program is using those libraries anymore. 1917 1918 [8] In order to have a kernel that can run the 4.x binaries needed to 1919 do an installworld, you must include the COMPAT_FREEBSD4 option in 1920 your kernel. Failure to do so may leave you with a system that is 1921 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1922 required to run the 5.x binaries on more recent kernels. And so on 1923 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1924 1925 Make sure that you merge any new devices from GENERIC since the 1926 last time you updated your kernel config file. 1927 1928 [9] When checking out sources, you must include the -P flag to have 1929 cvs prune empty directories. 1930 1931 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1932 "?=" instead of the "=" assignment operator, so that buildworld can 1933 override the CPUTYPE if it needs to. 1934 1935 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1936 not on the command line, or in /etc/make.conf. buildworld will 1937 warn if it is improperly defined. 1938FORMAT: 1939 1940This file contains a list, in reverse chronological order, of major 1941breakages in tracking -current. It is not guaranteed to be a complete 1942list of such breakages, and only contains entries since October 10, 2007. 1943If you need to see UPDATING entries from before that date, you will need 1944to fetch an UPDATING file from an older FreeBSD release. 1945 1946Copyright information: 1947 1948Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1949 1950Redistribution, publication, translation and use, with or without 1951modification, in full or in part, in any form or format of this 1952document are permitted without further permission from the author. 1953 1954THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1955IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1956WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1957DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1958INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1959(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1960SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1961HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1962STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1963IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1964POSSIBILITY OF SUCH DAMAGE. 1965 1966Contact Warner Losh if you have any questions about your use of 1967this document. 1968 1969$FreeBSD: releng/9.3/UPDATING 301049 2016-05-31 16:55:37Z glebius $ 1970