UPDATING revision 303304
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 1420160725 p45 FreeBSD-SA-16:25.bspatch 15 FreeBSD-EN-16:09.freebsd-update 16 17 Fix bspatch heap overflow vulnerability. [SA-16:25] 18 19 Fix freebsd-update(8) support of FreeBSD 11.0 release 20 distribution. [EN-16:09] 21 2220160604 p44 FreeBSD-SA-16:24.ntp 23 24 Fix multiple vulnerabilities of ntp. 25 2620160531 p43 FreeBSD-SA-16:20.linux 27 FreeBSD-SA-16:21.43bsd 28 FreeBSD-SA-16:22.libarchive 29 FreeBSD-SA-16:23.libarchive 30 31 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 32 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 33 Fix directory traversal in cpio(1). [SA-16:22] 34 Fix buffer overflow in libarchive(3). [SA-16:23] 35 3620160517 p42 FreeBSD-SA-16:18.atkbd 37 38 Fix buffer overflow in keyboard driver. [SA-16:18] 39 4020160504 p41 FreeBSD-SA-16:17.openssl 41 FreeBSD-EN-16:08.zfs 42 43 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 44 45 Fix memory leak in ZFS. [EN-16:08] 46 4720160429 p40 FreeBSD-SA-16:16.ntp 48 49 Fix multiple vulnerabilities of ntp. 50 5120160316 p39 FreeBSD-SA-16:14.openssh-xauth 52 FreeBSD-SA-16:15.sysarch 53 54 Fix OpenSSH xauth(1) command injection. [SA-16:14] 55 Fix incorrect argument validation in sysarch(2). [SA-16:15] 56 5720160310 p38 FreeBSD-SA-16:13.bind 58 FreeBSD-SA-16:12.openssl [revised] 59 60 Fix multiple vulnerabilities of BIND. [SA-16:13] 61 62 Fix a regression with OpenSSL patch. [SA-16:12] 63 6420160303 p37 FreeBSD-SA-16:12.openssl 65 66 Fix multiple vulnerabilities of OpenSSL. 67 6820160130 p36 FreeBSD-SA-16:11.openssl 69 70 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 71 7220160127 p35 FreeBSD-SA-16:08.bind 73 FreeBSD-SA-16:09.ntp 74 FreeBSD-SA-16:10.linux 75 76 Fix BIND remote denial of service vulnerability. [SA-16:08] 77 78 Fix multiple vulnerabilities of ntp. [SA-16:09] 79 80 Fix Linux compatibility layer issetugid(2) system call 81 vulnerability. [SA-16:10] 82 8320160114 p34 FreeBSD-SA-16:07.openssh 84 85 Fix OpenSSH client information leak. [SA-16:07] 86 8720160114 p33 FreeBSD-EN-16:02.pf 88 FreeBSD-EN-16:03.yplib 89 FreeBSD-SA-16:01.sctp 90 FreeBSD-SA-16:02.ntp 91 FreeBSD-SA-16:03.linux 92 FreeBSD-SA-16:04.linux 93 FreeBSD-SA-16:05.tcp 94 FreeBSD-SA-16:06.bsnmpd 95 96 Fix pf(4) generating bad TCP checksums. [EN-16:02] 97 Fix infinite loop in YP/NIS client library. [EN-16:03] 98 Fix remote denial of service in SCTP. [SA-16:01] 99 Update NTP to 4.2.8p5. [SA-16:02] 100 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 101 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 102 Fix crash in TCP MD5 signatures. [SA-16:05] 103 Fix insecure default permissions for snmpd.config. [SA-16:06] 104 10520151216 p32 FreeBSD-SA-15:27.bind 106 Fix BIND remote denial of service vulnerability. [SA-15:27] 107 10820151205 p31 FreeBSD-SA-15:26.openssl 109 110 Fix OpenSSL X509_ATTRIBUTE memory leak. [SA-15:26] 111 11220151104 p30 FreeBSD-SA-15:25.ntp [revised] 113 FreeBSD-EN-15:19.kqueue 114 FreeBSD-EN-15:20.vm 115 116 Fix regression of ntpq(8) utility exiting due to trap 6 in 117 9.3-RELEASE-p29. [SA-15:25] 118 119 Fix regression in ntpd(8) lacking support for RAWDCF reference 120 clock in 9.3-RELEASE-p29. [SA-15:25] 121 122 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 123 124 Fix applications exiting due to segmentation violation on a correct 125 memory address. [EN-15:20] 126 12720151026: p29 FreeBSD-SA-15:25.ntp 128 129 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 130 131 The configuration file syntax has been changed, thus mergemaster 132 run is recommended. Now the "kod" parameter requires "limited" 133 parameter. If the ntp.conf is not updated, the ntpd will run 134 successfully, but with KoD disabled. 135 13620151002: p28 FreeBSD-SA-15:24.rpcbind [revised] 137 Revised patch to address a regression that prevents NIS from working. 138 13920150929: p27 FreeBSD-SA-15:24.rpcbind 140 141 Fix rpcbind(8) remote denial of service. [SA-15:24] 142 14320150916: p26 FreeBSD-EN-15:18.pkg 144 145 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 146 14720150902: p25 FreeBSD-SA-15:23.bind 148 149 Fix BIND remote denial of service vulnerability. [SA-15:23] 150 15120150825: p24 FreeBSD-SA-15:21.amd64 152 FreeBSD-SA-15:22.openssh 153 FreeBSD-EN-15:15.pkg 154 155 Fix local privilege escalation in IRET handler. [SA-15:21] 156 157 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 158 159 Fix insufficient check of unsupported pkg(7) signature methods. 160 [EN-15:15] 161 16220150818: p23 FreeBSD-SA-15:20.expat 163 164 Fix multiple integer overflows in expat (libbsdxml) XML parser. 165 [SA-15:20] 166 16720150805: p22 FreeBSD-SA-15:19.routed 168 169 Fix routed remote denial of service vulnerability. 170 17120150728: p21 FreeBSD-SA-15:15.tcp 172 FreeBSD-SA-15:16.openssh 173 FreeBSD-SA-15:17.bind 174 175 Fix resource exhaustion in TCP reassembly. [SA-15:15] 176 177 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 178 179 Fix BIND remote denial of service vulnerability. [SA-15:17] 180 18120150721: p20 FreeBSD-SA-15:13.tcp 182 183 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 184 [SA-15:13] 185 18620150707: p19 FreeBSD-SA-15:11.bind 187 Fix BIND resolver remote denial of service when validating. 188 18920150630: p18 FreeBSD-EN-15:08.sendmail [revised] 190 FreeBSD-EN-15:09.xlocale 191 192 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 193 194 Fix inconsistency between locale and rune locale states. 195 [EN-15:09] 196 19720150618: p17 FreeBSD-EN-15:08.sendmail 198 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 199 20020150612: p16 FreeBSD-SA-15:10.openssl 201 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 202 20320150609: p15 FreeBSD-EN-15:06.file 204 205 Updated base system file(1) to 5.22 to address multiple denial 206 of service issues. 207 20820150513: p14 FreeBSD-EN-15:04.freebsd-update 209 210 Fix bug with freebsd-update(8) that does not ensure the previous 211 upgrade was completed. [EN-15:04] 212 21320150407: p13 FreeBSD-SA-15:04.igmp [revised] 214 FreeBSD-SA-15:07.ntp 215 FreeBSD-SA-15:09.ipv6 216 217 Improved patch for SA-15:04.igmp. 218 219 Fix multiple vulnerabilities of ntp. [SA-15:07] 220 221 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 222 22320150320: p12 224 Fix patch for SA-15:06.openssl. 225 22620150319: p11 FreeBSD-SA-15:06.openssl 227 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 228 22920150225: p10 FreeBSD-SA-15:04.igmp 230 FreeBSD-SA-15:05.bind 231 FreeBSD-EN-15:01.vt 232 FreeBSD-EN-15:02.openssl 233 FreeBSD-EN-15:03.freebsd-update 234 235 Fix integer overflow in IGMP protocol. [SA-15:04] 236 237 Fix BIND remote denial of service vulnerability. [SA-15:05] 238 239 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 240 241 Updated base system OpenSSL to 0.9.8zd. [EN-15:02] 242 243 Fix freebsd-update libraries update ordering issue. [EN-15:03] 244 24520150127: p9 FreeBSD-SA-15:02.kmem 246 FreeBSD-SA-15:03.sctp 247 248 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 249 vulnerability. [SA-15:02] 250 251 Fix SCTP stream reset vulnerability. [SA-15:03] 252 25320150114: p8 FreeBSD-SA-15:01.openssl 254 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 255 25620141223: p7 FreeBSD-SA-14:31.ntp 257 FreeBSD-EN-14:13.freebsd-update 258 259 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 260 Fix directory deletion issue in freebsd-update. [EN-14:13] 261 26220141210: p6 FreeBSD-SA-14:28.file 263 FreeBSD-SA-14:29.bind 264 265 Fix multiple vulnerabilities in file(1) and libmagic(3). 266 [SA-14:28] 267 268 Fix BIND remote denial of service vulnerability. [SA-14:29] 269 27020141104: p5 FreeBSD-SA-14:25.setlogin 271 FreeBSD-SA-14:26.ftp 272 FreeBSD-EN-14:12.zfs 273 274 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 275 [SA-14:25] 276 277 Fix remote command execution in ftp(1). [SA-14:26] 278 279 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 280 28120141022: p4 FreeBSD-EN-14:10.tzdata 282 FreeBSD-EN-14:11.crypt 283 284 Time zone data file update. [EN-14:10] 285 286 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 287 28820141021: p3 FreeBSD-SA-14:20.rtsold 289 FreeBSD-SA-14:21.routed 290 FreeBSD-SA-14:22.namei 291 FreeBSD-SA-14:23.openssl 292 293 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 294 295 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 296 297 Fix memory leak in sandboxed namei lookup. [SA-14:22] 298 299 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 300 30120140916: p2 FreeBSD-SA-14:19.tcp 302 Fix Denial of Service in TCP packet processing. [SA-14:19] 303 30420140909: p1 FreeBSD-SA-14:18.openssl 305 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 306 30720140716: 308 9.3-RELEASE. 309 31020140608: 311 On i386 and amd64 systems, the onifconsole flag is now set by default 312 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 313 as a login TTY if it is set in the bootloader as an active kernel 314 console. No changes in behavior should result otherwise. To revert to 315 the previous behavior, set ttyu0 to "off" in /etc/ttys. 316 31720140512: 318 Clang and llvm have been upgraded to 3.4.1 release. 319 32020140321: 321 Clang and llvm have been upgraded to 3.4 release. 322 32320140216: 324 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 325 been deprecated and will not be part of FreeBSD 11.0 and later 326 releases. If you use this driver, please consider switching to 327 the nfe(4) driver instead. 328 32920131216: 330 The behavior of gss_pseudo_random() for the krb5 mechanism 331 has changed, for applications requesting a longer random string 332 than produced by the underlying enctype's pseudo-random() function. 333 In particular, the random string produced from a session key of 334 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 335 be different at the 17th octet and later, after this change. 336 The counter used in the PRF+ construction is now encoded as a 337 big-endian integer in accordance with RFC 4402. 338 __FreeBSD_version is bumped to 902505. 339 34020130930: 341 9.2-RELEASE. 342 34320130823: 344 Behavior of devfs rules path matching has been changed. 345 Pattern is now always matched against fully qualified devfs 346 path and slash characters must be explicitly matched by 347 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 348 subdirectories must be reviewed. 349 35020130705: 351 hastctl(8)'s `status' command output changed to terse one-liner format. 352 Scripts using this should switch to `list' command or be rewritten. 353 35420130618: 355 Fix a bug that allowed a tracing process (e.g. gdb) to write 356 to a memory-mapped file in the traced process's address space 357 even if neither the traced process nor the tracing process had 358 write access to that file. 359 36020130605: 361 Added ZFS TRIM support which is enabled by default. To disable 362 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 363 364 Creating new ZFS pools and adding new devices to existing pools 365 first performs a full device level TRIM which can take a significant 366 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 367 to disable this behaviour. 368 369 ZFS TRIM requires the underlying device support BIO_DELETE which 370 is currently provided by methods such as ATA TRIM and SCSI UNMAP 371 via CAM, which are typically supported by SSD's. 372 373 Stats for ZFS TRIM can be monitored by looking at the sysctl's 374 under kstat.zfs.misc.zio_trim. 375 37620130524: 377 `list' command has been added to hastctl(8). For now, it is full 378 equivalent of `status' command. 379 WARNING: in the near future the output of hastctl's status command 380 will change to more terse format. If you use `hastctl status' 381 for parsing in your scripts, switch to `hastctl list'. 382 38320130430: 384 The mergemaster command now uses the default MAKEOBJDIRPREFIX 385 rather than creating it's own in the temporary directory in 386 order allow access to bootstrapped versions of tools such as 387 install and mtree. When upgrading from version of FreeBSD where 388 the install command does not support -l, you will need to 389 install a new mergemaster command if mergemaster -p is required. 390 This can be accomplished with the command (cd src/usr.sbin/mergemaster 391 && make install). 392 393 Due to the use of the new -l option to install(1) during build 394 and install, you must take care not to directly set the INSTALL 395 make variable in your /etc/make.conf, /etc/src.conf, or on the 396 command line. If you wish to use the -C flag for all installs 397 you may be able to add INSTALL+=-C to /etc/make.conf or 398 /etc/src.conf. 399 40020130429: 401 Fix a bug that allows NFS clients to issue READDIR on files. 402 40320130315: 404 The install(1) option -M has changed meaning and now takes an 405 argument that is a file or path to append logs to. In the 406 unlikely event that -M was the last option on the command line 407 and the command line contained at least two files and a target 408 directory the first file will have logs appended to it. The -M 409 option served little practical purpose in the last decade so it's 410 used expected to be extremely rare. 411 41220130225: 413 A new compression method (lz4) has been merged to. Please refer to 414 zpool-features(7) for more information. 415 416 Please refer to the "ZFS notes" section of this file for information 417 on upgrading boot ZFS pools. 418 41920121224: 420 The VFS KBI was changed with the merge of several nullfs 421 optimizations and fixes. All filesystem modules must be 422 recompiled. 423 42420121218: 425 With the addition of auditdistd(8), a new auditdistd user is now 426 depended on during installworld. "mergemaster -p" can be used to add 427 the user prior to installworld, as documented in the handbook. 428 42920121205: 430 9.1-RELEASE. 431 43220121129: 433 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 434 Starting with this version the old system of ZFS pool versioning 435 is superseded by "feature flags". This concept enables forward 436 compatibility against certain future changes in functionality of ZFS 437 pools. The first two read-only compatible "feature flags" for ZFS 438 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 439 For more information read the new zpool-features(7) manual page. 440 Please refer to the "ZFS notes" section of this file for information 441 on upgrading boot ZFS pools. 442 44320121114: 444 The commit introducing bsd.compiler.mk breaks the traditional 445 building of kernels before this point. Add -m ${SRC}/share/mk 446 (for the right value of SRC) to your command lines to work 447 around; update your useland to a point after this; or use the 448 buildkernel/installkernel top-level targets. See also 20120829. 449 45020121102: 451 The IPFIREWALL_FORWARD kernel option has been removed. Its 452 functionality now turned on by default. 453 45420120913: 455 The random(4) support for the VIA hardware random number 456 generator (`PADLOCK') is no longer enabled unconditionally. 457 Add the PADLOCK_RNG option in the custom kernel config if 458 needed. The GENERIC kernels on i386 and amd64 do include the 459 option, so the change only affects the custom kernel 460 configurations. 461 46220120829: 463 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 464 the traditional method, you must update your system with an installworld 465 before the kernel will build. The documented make buildkernel/installkernel 466 interfaces (coupled with fresh make kernel-toolchain) continue to work. 467 46820120727: 469 The sparc64 ZFS loader has been changed to no longer try to auto- 470 detect ZFS providers based on diskN aliases but now requires these 471 to be explicitly listed in the OFW boot-device environment variable. 472 47320120422: 474 Now unix domain sockets behave "as expected" on nullfs(5). Previously 475 nullfs(5) did not pass through all behaviours to the underlying layer, 476 as a result if we bound to a socket on the lower layer we could connect 477 only to the lower path; if we bound to the upper layer we could connect 478 only to the upper path. The new behavior is one can connect to both the 479 lower and the upper paths regardless what layer path one binds to. 480 48120120109: 482 The acpi_wmi(4) status device /dev/wmistat has been renamed to 483 /dev/wmistat0. 484 48520120106: 486 A new VOP_ADVISE() was added to support posix_fadvise(2). All 487 filesystem modules must be recompiled. 488 48920120106: 490 The interface of the VOP_VPTOCNP(9) changed, now the returned 491 vnode shall be referenced, previously it was required to be 492 only held. All in-tree filesystems are converted. 493 49420120106: 495 9.0-RELEASE. 496 49720111101: 498 The broken amd(4) driver has been replaced with esp(4) in the amd64, 499 i386 and pc98 GENERIC kernel configuration files. 500 50120110913: 502 This commit modifies vfs_register() so that it uses a hash 503 calculation to set vfc_typenum, which is enabled by default. 504 The first time a system is booted after this change, the 505 vfc_typenum values will change for all file systems. The 506 main effect of this is a change to the NFS server file handles 507 for file systems that use vfc_typenum in their fsid, such as ZFS. 508 It will, however, prevent vfc_typenum from changing when file 509 systems are loaded in a different order for subsequent reboots. 510 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 511 until you are ready to remount all NFS clients after a reboot. 512 51320110828: 514 Bump the shared library version numbers for libraries that 515 do not use symbol versioning, have changed the ABI compared 516 to stable/8 and which shared library version was not bumped. 517 Done as part of 9.0-RELEASE cycle. 518 51920110815: 520 During the merge of Capsicum features, the fget(9) KPI was modified. 521 This may require the rebuilding of out-of-tree device drivers -- 522 issues have been reported specifically with the nVidia device driver. 523 __FreeBSD_version is bumped to 900041. 524 525 Also, there is a period between 20110811 and 20110814 where the 526 special devices /dev/{stdin,stdout,stderr} did not work correctly. 527 Building world from a kernel during that window may not work. 528 52920110628: 530 The packet filter (pf) code has been updated to OpenBSD 4.5. 531 You need to update userland tools to be in sync with kernel. 532 This update breaks backward compatibility with earlier pfsync(4) 533 versions. Care must be taken when updating redundant firewall setups. 534 53520110608: 536 The following sysctls and tunables are retired on x86 platforms: 537 machdep.hlt_cpus 538 machdep.hlt_logical_cpus 539 The following sysctl is retired: 540 machdep.hyperthreading_allowed 541 The sysctls were supposed to provide a way to dynamically offline and 542 online selected CPUs on x86 platforms, but the implementation has not 543 been reliable especially with SCHED_ULE scheduler. 544 machdep.hyperthreading_allowed tunable is still available to ignore 545 hyperthreading CPUs at OS level. 546 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 547 where X is an APIC ID of a CPU. Be advised, though, that disabling 548 CPUs in non-uniform fashion will result in non-uniform topology and 549 may lead to sub-optimal system performance with SCHED_ULE, which is 550 a default scheduler. 551 55220110607: 553 cpumask_t type is retired and cpuset_t is used in order to describe 554 a mask of CPUs. 555 55620110531: 557 Changes to ifconfig(8) for dynamic address family detection mandate 558 that you are running a kernel of 20110525 or later. Make sure to 559 follow the update procedure to boot a new kernel before installing 560 world. 561 56220110513: 563 Support for sun4v architecture is officially dropped 564 56520110503: 566 Several KPI breaking changes have been committed to the mii(4) layer, 567 the PHY drivers and consequently some Ethernet drivers using mii(4). 568 This means that miibus.ko and the modules of the affected Ethernet 569 drivers need to be recompiled. 570 571 Note to kernel developers: Given that the OUI bit reversion problem 572 was fixed as part of these changes all mii(4) commits related to OUIs, 573 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 574 handling, no longer can be merged verbatim to stable/8 and previous 575 branches. 576 57720110430: 578 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 579 into their kernel configurations along with 'device pci'. 580 58120110427: 582 The default NFS client is now the new NFS client, so fstype "newnfs" 583 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 584 Although mounts via fstype "nfs" will usually work without userland 585 changes, it is recommended that the mount(8) and mount_nfs(8) 586 commands be rebuilt from sources and that a link to mount_nfs called 587 mount_oldnfs be created. The new client is compiled into the 588 kernel with "options NFSCL" and this is needed for diskless root 589 file systems. The GENERIC kernel configs have been changed to use 590 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 591 To use the regular/old client, you can "mount -t oldnfs ...". For 592 a diskless root file system, you must also include a line like: 593 594 vfs.root.mountfrom="oldnfs:" 595 596 in the boot/loader.conf on the root fs on the NFS server to make 597 a diskless root fs use the old client. 598 59920110424: 600 The GENERIC kernels for all architectures now default to the new 601 CAM-based ATA stack. It means that all legacy ATA drivers were 602 removed and replaced by respective CAM drivers. If you are using 603 ATA device names in /etc/fstab or other places, make sure to update 604 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 605 where 'Y's are the sequential numbers starting from zero for each type 606 in order of detection, unless configured otherwise with tunables, 607 see cam(4)). There will be symbolic links created in /dev/ to map 608 old adX devices to the respective adaY. They should provide basic 609 compatibility for file systems mounting in most cases, but they do 610 not support old user-level APIs and do not have respective providers 611 in GEOM. Consider using updated management tools with new device names. 612 613 It is possible to load devices ahci, ata, siis and mvs as modules, 614 but option ATA_CAM should remain in kernel configuration to make ata 615 module work as CAM driver supporting legacy ATA controllers. Device ata 616 still can be used in modular fashion (atacore + ...). Modules atadisk 617 and atapi* are not used and won't affect operation in ATA_CAM mode. 618 Note that to use CAM-based ATA kernel should include CAM devices 619 scbus, pass, da (or explicitly ada), cd and optionally others. All of 620 them are parts of the cam module. 621 622 ataraid(4) functionality is now supported by the RAID GEOM class. 623 To use it you can load geom_raid kernel module and use graid(8) tool 624 for management. Instead of /dev/arX device names, use /dev/raid/rX. 625 626 No kernel config options or code have been removed, so if a problem 627 arises, please report it and optionally revert to the old ATA stack. 628 In order to do it you can remove from the kernel config: 629 options ATA_CAM 630 device ahci 631 device mvs 632 device siis 633 , and instead add back: 634 device atadisk # ATA disk drives 635 device ataraid # ATA RAID drives 636 device atapicd # ATAPI CDROM drives 637 device atapifd # ATAPI floppy drives 638 device atapist # ATAPI tape drives 639 64020110423: 641 The default NFS server has been changed to the new server, which 642 was referred to as the experimental server. If you need to switch 643 back to the old NFS server, you must now put the "-o" option on 644 both the mountd and nfsd commands. This can be done using the 645 mountd_flags and nfs_server_flags rc.conf variables until an 646 update to the rc scripts is committed, which is coming soon. 647 64820110418: 649 The GNU Objective-C runtime library (libobjc), and other Objective-C 650 related components have been removed from the base system. If you 651 require an Objective-C library, please use one of the available ports. 652 65320110331: 654 ath(4) has been split into bus- and device- modules. if_ath contains 655 the HAL, the TX rate control and the network device code. if_ath_pci 656 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 657 contains the AHB glue. Users need to load both if_ath_pci and if_ath 658 in order to use ath on everything else. 659 660 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 661 need to load if_ath and if_ath_pci for ath(4) operation. 662 66320110314: 664 As part of the replacement of sysinstall, the process of building 665 release media has changed significantly. For details, please re-read 666 release(7), which has been updated to reflect the new build process. 667 66820110218: 669 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 670 is the last available version under GPLv2. It brings a number of new 671 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 672 4.1 and SSE 4.2), better support for powerpc64, a number of new 673 directives, and lots of other small improvements. See the ChangeLog 674 file in contrib/binutils for the full details. 675 67620110218: 677 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 678 compliant, and will now use half of hash for authentication. 679 This will break interoperability with all stacks (including all 680 actual FreeBSD versions) who implement 681 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 682 authentication). 683 The only workaround with such peers is to use another HMAC 684 algorithm for IPsec ("phase 2") authentication. 685 68620110207: 687 Remove the uio_yield prototype and symbol. This function has 688 been misnamed since it was introduced and should not be 689 globally exposed with this name. The equivalent functionality 690 is now available using kern_yield(curthread->td_user_pri). 691 The function remains undocumented. 692 69320110112: 694 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 695 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 696 for scalar sysctls is defined but disabled. Code that needs 697 UQUAD to pass the type checking that must compile on older 698 systems where the define is not present can check against 699 __FreeBSD_version >= 900030. 700 701 The system dialog(1) has been replaced with a new version previously 702 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 703 with the previous version, but the libdialog associated with it has 704 a largely incompatible API. As such, the original version of libdialog 705 will be kept temporarily as libodialog, until its base system consumers 706 are replaced or updated. Bump __FreeBSD_version to 900030. 707 70820110103: 709 If you are trying to run make universe on a -stable system, and you get 710 the following warning: 711 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 712 unknown. config(8) likely too old." 713 or something similar to it, then you must upgrade your -stable system 714 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 715 stable/8) or build the config from the latest stable/8 branch and 716 install it on your system. 717 718 Prior to this date, building a current universe on 8-stable system from 719 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 720 error in the first kernel build phase. A new config on those old 721 systems will fix that problem for older versions of -current. 722 72320101228: 724 The TCP stack has been modified to allow Khelp modules to interact with 725 it via helper hook points and store per-connection data in the TCP 726 control block. Bump __FreeBSD_version to 900029. User space tools that 727 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 728 be recompiled. 729 73020101114: 731 Generic IEEE 802.3 annex 31B full duplex flow control support has been 732 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 733 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 734 to take advantage of it instead of using custom implementations. This 735 means that these drivers now no longer unconditionally advertise 736 support for flow control but only do so if flow control is a selected 737 media option. This was implemented in the generic support that way in 738 order to allow flow control to be switched on and off via ifconfig(8) 739 with the PHY specific default to typically off in order to protect 740 from unwanted effects. Consequently, if you used flow control with 741 one of the above mentioned drivers you now need to explicitly enable 742 it, for example via: 743 ifconfig bge0 media auto mediaopt flowcontrol 744 745 Along with the above mentioned changes generic support for setting 746 1000baseT master mode also has been added and brgphy(4), ciphy(4), 747 e1000phy(4) as well as ip1000phy(4) have been converted to take 748 advantage of it. This means that these drivers now no longer take the 749 link0 parameter for selecting master mode but the master media option 750 has to be used instead, for example like in the following: 751 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 752 753 Selection of master mode now is also available with all other PHY 754 drivers supporting 1000baseT. 755 75620101111: 757 The TCP stack has received a significant update to add support for 758 modularised congestion control and generally improve the clarity of 759 congestion control decisions. Bump __FreeBSD_version to 900025. User 760 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 761 sockstat) need to be recompiled. 762 76320101002: 764 The man(1) utility has been replaced by a new version that no longer 765 uses /etc/manpath.config. Please consult man.conf(5) for how to 766 migrate local entries to the new format. 767 76820100928: 769 The copyright strings printed by login(1) and sshd(8) at the time of a 770 new connection have been removed to follow other operating systems and 771 upstream sshd. 772 77320100915: 774 A workaround for a fixed ld bug has been removed in kernel code, 775 so make sure that your system ld is built from sources after 776 revision 210245 from 2010-07-19 (r211583 if building head kernel 777 on stable/8, r211584 for stable/7; both from 2010-08-21). 778 A symptom of incorrect ld version is different addresses for 779 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 780 78120100913: 782 The $ipv6_prefer variable in rc.conf(5) has been split into 783 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 784 785 The $ip6addrctl_policy is a variable to choose a pre-defined 786 address selection policy set by ip6addrctl(8). A value 787 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 788 default is "AUTO". 789 790 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 791 flag (see an entry of 20090926) is set on an interface with no 792 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 793 security reason. If you want IPv6 link-local address on all 794 interfaces by default, set this to "YES". 795 796 The old ipv6_prefer="YES" is equivalent to 797 ipv6_activate_all_interfaces="YES" and 798 ip6addrctl_policy="ipv6_prefer". 799 80020100913: 801 DTrace has grown support for userland tracing. Due to this, DTrace is 802 now i386 and amd64 only. 803 dtruss(1) is now installed by default on those systems and a new 804 kernel module is needed for userland tracing: fasttrap. 805 No changes to your kernel config file are necessary to enable 806 userland tracing, but you might consider adding 'STRIP=' and 807 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 808 to have informative userland stack traces in DTrace (ustack). 809 81020100725: 811 The acpi_aiboost(4) driver has been removed in favor of the new 812 aibs(4) driver. You should update your kernel configuration file. 813 81420100722: 815 BSD grep has been imported to the base system and it is built by 816 default. It is completely BSD licensed, highly GNU-compatible, uses 817 less memory than its GNU counterpart and has a small codebase. 818 However, it is slower than its GNU counterpart, which is mostly 819 noticeable for larger searches, for smaller ones it is measurable 820 but not significant. The reason is complex, the most important factor 821 is that we lack a modern and efficient regex library and GNU 822 overcomes this by optimizing the searches internally. Future work 823 on improving the regex performance is planned, for the meantime, 824 users that need better performance, can build GNU grep instead by 825 setting the WITH_GNU_GREP knob. 826 82720100713: 828 Due to the import of powerpc64 support, all existing powerpc kernel 829 configuration files must be updated with a machine directive like this: 830 machine powerpc powerpc 831 832 In addition, an updated config(8) is required to build powerpc kernels 833 after this change. 834 83520100713: 836 A new version of ZFS (version 15) has been merged to -HEAD. 837 This version uses a python library for the following subcommands: 838 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 839 For full functionality of these commands the following port must 840 be installed: sysutils/py-zfs 841 84220100429: 843 'vm_page's are now hashed by physical address to an array of mutexes. 844 Currently this is only used to serialize access to hold_count. Over 845 time the page queue mutex will be peeled away. This changes the size 846 of pmap on every architecture. And requires all callers of vm_page_hold 847 and vm_page_unhold to be updated. 848 84920100402: 850 WITH_CTF can now be specified in src.conf (not recommended, there 851 are some problems with static executables), make.conf (would also 852 affect ports which do not use GNU make and do not override the 853 compile targets) or in the kernel config (via "makeoptions 854 WITH_CTF=yes"). 855 When WITH_CTF was specified there before this was silently ignored, 856 so make sure that WITH_CTF is not used in places which could lead 857 to unwanted behavior. 858 85920100311: 860 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 861 to allow 32-bit compatibility on non-x86 platforms. All kernel 862 configurations on amd64 and ia64 platforms using these options must 863 be modified accordingly. 864 86520100113: 866 The utmp user accounting database has been replaced with utmpx, 867 the user accounting interface standardized by POSIX. 868 Unfortunately the semantics of utmp and utmpx don't match, 869 making it practically impossible to support both interfaces. 870 The user accounting database is used by tools like finger(1), 871 last(1), talk(1), w(1) and ac(8). 872 873 All applications in the base system use utmpx. This means only 874 local binaries (e.g. from the ports tree) may still use these 875 utmp database files. These applications must be rebuilt to make 876 use of utmpx. 877 878 After the system has been upgraded, it is safe to remove the old 879 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 880 assuming their contents is of no importance anymore. Old wtmp 881 databases can only be used by last(1) and ac(8) after they have 882 been converted to the new format using wtmpcvt(1). 883 88420100108: 885 Introduce the kernel thread "deadlock resolver" (which can be enabled 886 via the DEADLKRES option, see NOTES for more details) and the 887 sleepq_type() function for sleepqueues. 888 88920091202: 890 The rc.firewall and rc.firewall6 were unified, and 891 rc.firewall6 and rc.d/ip6fw were removed. 892 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 893 variables are obsoleted. Instead, the following new rc 894 variables are added to rc.d/ipfw: 895 896 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 897 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 898 firewall_simple_onet_ipv6, firewall_trusted_ipv6 899 900 The meanings correspond to the relevant IPv4 variables. 901 90220091125: 903 8.0-RELEASE. 904 90520091113: 906 The default terminal emulation for syscons(4) has been changed 907 from cons25 to xterm on all platforms except pc98. This means 908 that the /etc/ttys file needs to be updated to ensure correct 909 operation of applications on the console. 910 911 The terminal emulation style can be toggled per window by using 912 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 913 options can be used to change the compile-time default back to 914 cons25. 915 916 To prevent graphical artifacts, make sure the TERM environment 917 variable is set to match the terminal emulation that is being 918 performed by syscons(4). 919 92020091109: 921 The layout of the structure ieee80211req_scan_result has changed. 922 Applications that require wireless scan results (e.g. ifconfig(8)) 923 from net80211 need to be recompiled. 924 925 Applications such as wpa_supplicant(8) may require a full world 926 build without using NO_CLEAN in order to get synchronized with the 927 new structure. 928 92920091025: 930 The iwn(4) driver has been updated to support the 5000 and 5150 series. 931 There's one kernel module for each firmware. Adding "device iwnfw" 932 to the kernel configuration file means including all three firmware 933 images inside the kernel. If you want to include just the one for 934 your wireless card, use the devices iwn4965fw, iwn5000fw or 935 iwn5150fw. 936 93720090926: 938 The rc.d/network_ipv6, IPv6 configuration script has been integrated 939 into rc.d/netif. The changes are the following: 940 941 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 942 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 943 Note that both variables need the "inet6" keyword at the head. 944 945 Do not set $ipv6_network_interfaces manually if you do not 946 understand what you are doing. It is not needed in most cases. 947 948 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 949 they are obsolete. 950 951 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 952 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 953 954 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 955 all configured interfaces have "inet6 accept_rtadv" in the 956 $ifconfig_IF_ipv6. These are for backward compatibility. 957 958 3. A new variable $ipv6_prefer has been added. If NO, IPv6 959 functionality of interfaces with no corresponding 960 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 961 and the default address selection policy of ip6addrctl(8) 962 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 963 Note that if you want to configure IPv6 functionality on the 964 disabled interfaces after boot, first you need to clear the flag by 965 using ifconfig(8) like: 966 967 ifconfig em0 inet6 -ifdisabled 968 969 If YES, the default address selection policy is set as 970 IPv6-preferred. 971 972 The default value of $ipv6_prefer is NO. 973 974 4. If your system need to receive Router Advertisement messages, 975 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 976 scripts automatically invoke rtsol(8) when the interface becomes 977 UP. The Router Advertisement messages are used for SLAAC 978 (State-Less Address AutoConfiguration). 979 98020090922: 981 802.11s D3.03 support was committed. This is incompatible with the 982 previous code, which was based on D3.0. 983 98420090912: 985 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 986 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 987 control whether accepting Router Advertisement messages or not. 988 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 989 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 990 The ifconfig(8) utility now supports these flags. 991 99220090910: 993 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 994 mount(8) and -a option for df(1) to see them. 995 99620090825: 997 The old tunable hw.bus.devctl_disable has been superseded by 998 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 999 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1000 is 1000. 1001 100220090813: 1003 Remove the option STOP_NMI. The default action is now to use NMI only 1004 for KDB via the newly introduced function stop_cpus_hard() and 1005 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1006 100720090803: 1008 The stable/8 branch created in subversion. This corresponds to the 1009 RELENG_8 branch in CVS. 1010 101120090719: 1012 Bump the shared library version numbers for all libraries that do not 1013 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1014 __FreeBSD_version to 800105. 1015 101620090714: 1017 Due to changes in the implementation of virtual network stack support, 1018 all network-related kernel modules must be recompiled. As this change 1019 breaks the ABI, bump __FreeBSD_version to 800104. 1020 102120090713: 1022 The TOE interface to the TCP syncache has been modified to remove 1023 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1024 The cxgb driver is the only TOE consumer affected by this change, and 1025 needs to be recompiled along with the kernel. As this change breaks 1026 the ABI, bump __FreeBSD_version to 800103. 1027 102820090712: 1029 Padding has been added to struct tcpcb, sackhint and tcpstat in 1030 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1031 maintaining the ABI. However, this change breaks the ABI, so bump 1032 __FreeBSD_version to 800102. User space tools that rely on the size of 1033 any of these structs (e.g. sockstat) need to be recompiled. 1034 103520090630: 1036 The NFS_LEGACYRPC option has been removed along with the old kernel 1037 RPC implementation that this option selected. Kernel configurations 1038 may need to be adjusted. 1039 104020090629: 1041 The network interface device nodes at /dev/net/<interface> have been 1042 removed. All ioctl operations can be performed the normal way using 1043 routing sockets. The kqueue functionality can generally be replaced 1044 with routing sockets. 1045 104620090628: 1047 The documentation from the FreeBSD Documentation Project (Handbook, 1048 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1049 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1050 105120090624: 1052 The ABI of various structures related to the SYSV IPC API have been 1053 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1054 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1055 800100. 1056 105720090622: 1058 Layout of struct vnet has changed as routing related variables were 1059 moved to their own Vimage module. Modules need to be recompiled. Bump 1060 __FreeBSD_version to 800099. 1061 106220090619: 1063 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1064 respectively. As long as no more than 16 groups per process are used, 1065 no changes should be visible. When more than 16 groups are used, old 1066 binaries may fail if they call getgroups() or getgrouplist() with 1067 statically sized storage. Recompiling will work around this, but 1068 applications should be modified to use dynamically allocated storage 1069 for group arrays as POSIX.1-2008 does not cap an implementation's 1070 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1071 1072 NFS and portalfs mounts may also be affected as the list of groups is 1073 truncated to 16. Users of NFS who use more than 16 groups, should 1074 take care that negative group permissions are not used on the exported 1075 file systems as they will not be reliable unless a GSSAPI based 1076 authentication method is used. 1077 107820090616: 1079 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1080 option compiles in the support for adaptive spinning for lockmgrs 1081 which want to enable it. The lockinit() function now accepts the flag 1082 LK_ADAPTIVE in order to make the lock object subject to adaptive 1083 spinning when both held in write and read mode. 1084 108520090613: 1086 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1087 changed. User applications that use this ioctl need to be rebuilt. 1088 108920090611: 1090 The layout of struct thread has changed. Kernel and modules need to 1091 be rebuilt. 1092 109320090608: 1094 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1095 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1096 109720090602: 1098 window(1) has been removed from the base system. It can now be 1099 installed from ports. The port is called misc/window. 1100 110120090601: 1102 The way we are storing and accessing `routing table' entries has 1103 changed. Programs reading the FIB, like netstat, need to be 1104 re-compiled. 1105 110620090601: 1107 A new netisr implementation has been added for FreeBSD 8. Network 1108 file system modules, such as igmp, ipdivert, and others, should be 1109 rebuilt. 1110 Bump __FreeBSD_version to 800096. 1111 111220090530: 1113 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1114 more valid. 1115 111620090530: 1117 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1118 Bump __FreeBSD_version to 800094. 1119 112020090529: 1121 Add mnt_xflag field to 'struct mount'. File system modules need to be 1122 rebuilt. 1123 Bump __FreeBSD_version to 800093. 1124 112520090528: 1126 The compiling option ADAPTIVE_SX has been retired while it has been 1127 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1128 The KPI for sx_init_flags() changes as accepting flags: 1129 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1130 been introduced in order to handle the reversed logic. 1131 Bump __FreeBSD_version to 800092. 1132 113320090527: 1134 Add support for hierarchical jails. Remove global securelevel. 1135 Bump __FreeBSD_version to 800091. 1136 113720090523: 1138 The layout of struct vnet_net has changed, therefore modules 1139 need to be rebuilt. 1140 Bump __FreeBSD_version to 800090. 1141 114220090523: 1143 The newly imported zic(8) produces a new format in the output. Please 1144 run tzsetup(8) to install the newly created data to /etc/localtime. 1145 114620090520: 1147 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1148 hw.usb.* and is now consistent again with previous releases. 1149 115020090520: 1151 802.11 monitor mode support was revised and driver api's were changed. 1152 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1153 of DLT_IEEE802_11. No user-visible data structures were changed but 1154 applications that use DLT_IEEE802_11 may require changes. 1155 Bump __FreeBSD_version to 800088. 1156 115720090430: 1158 The layout of the following structs has changed: sysctl_oid, 1159 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1160 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1161 panics may be experienced. World rebuild is required for 1162 correctly checking networking state from userland. 1163 Bump __FreeBSD_version to 800085. 1164 116520090429: 1166 MLDv2 and Source-Specific Multicast (SSM) have been merged 1167 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1168 The implementation of SSM within FreeBSD's IPv6 stack closely 1169 follows the IPv4 implementation. 1170 1171 For kernel developers: 1172 1173 * The most important changes are that the ip6_output() and 1174 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1175 and this lock has been downgraded to a non-recursive mutex. 1176 1177 * As with the changes to the IPv4 stack to support SSM, filtering 1178 of inbound multicast traffic must now be performed by transport 1179 protocols within the IPv6 stack. This does not apply to TCP and 1180 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1181 1182 * The KPIs used by IPv6 multicast are similar to those used by 1183 the IPv4 stack, with the following differences: 1184 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1185 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1186 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1187 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1188 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1189 for MLDv1 have an additional 'timer' argument which is used to 1190 jitter the initial membership report for the solicited-node 1191 multicast membership on-link. 1192 * This is not strictly needed for MLDv2, which already jitters 1193 its report transmissions. However, the 'timer' argument is 1194 preserved in case MLDv1 is active on the interface. 1195 1196 * The KAME linked-list based IPv6 membership implementation has 1197 been refactored to use a vector similar to that used by the IPv4 1198 stack. 1199 Code which maintains a list of its own multicast memberships 1200 internally, e.g. carp, has been updated to reflect the new 1201 semantics. 1202 1203 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1204 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1205 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1206 implementation constraint which needs to be addressed in HEAD. 1207 1208 For application developers: 1209 1210 * The changes are broadly similar to those made for the IPv4 1211 stack. 1212 1213 * The use of IPv4 and IPv6 multicast socket options on the same 1214 socket, using mapped addresses, HAS NOT been tested or supported. 1215 1216 * There are a number of issues with the implementation of various 1217 IPv6 multicast APIs which need to be resolved in the API surface 1218 before the implementation is fully compatible with KAME userland 1219 use, and these are mostly to do with interface index treatment. 1220 1221 * The literature available discusses the use of either the delta / ASM 1222 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1223 using setsourcefilter(3)/getsourcefilter(3). For more information 1224 please refer to RFC 3768, 'Socket Interface Extensions for 1225 Multicast Source Filters'. 1226 1227 * Applications which use the published RFC 3678 APIs should be fine. 1228 1229 For systems administrators: 1230 1231 * The mtest(8) utility has been refactored to support IPv6, in 1232 addition to IPv4. Interface addresses are no longer accepted 1233 as arguments, their names must be used instead. The utility 1234 will map the interface name to its first IPv4 address as 1235 returned by getifaddrs(3). 1236 1237 * The ifmcstat(8) utility has also been updated to print the MLDv2 1238 endpoint state and source filter lists via sysctl(3). 1239 1240 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1241 loopback of IPv6 multicast datagrams by default; it defaults to 1 1242 to preserve the existing behaviour. Disabling multicast loopback is 1243 recommended for optimal system performance. 1244 1245 * The IPv6 MROUTING code has been changed to examine this sysctl 1246 instead of attempting to perform a group lookup before looping 1247 back forwarded datagrams. 1248 1249 Bump __FreeBSD_version to 800084. 1250 125120090422: 1252 Implement low-level Bluetooth HCI API. 1253 Bump __FreeBSD_version to 800083. 1254 125520090419: 1256 The layout of struct malloc_type, used by modules to register new 1257 memory allocation types, has changed. Most modules will need to 1258 be rebuilt or panics may be experienced. 1259 Bump __FreeBSD_version to 800081. 1260 126120090415: 1262 Anticipate overflowing inp_flags - add inp_flags2. 1263 This changes most offsets in inpcb, so checking v4 connection 1264 state will require a world rebuild. 1265 Bump __FreeBSD_version to 800080. 1266 126720090415: 1268 Add an llentry to struct route and struct route_in6. Modules 1269 embedding a struct route will need to be recompiled. 1270 Bump __FreeBSD_version to 800079. 1271 127220090414: 1273 The size of rt_metrics_lite and by extension rtentry has changed. 1274 Networking administration apps will need to be recompiled. 1275 The route command now supports show as an alias for get, weighting 1276 of routes, sticky and nostick flags to alter the behavior of stateful 1277 load balancing. 1278 Bump __FreeBSD_version to 800078. 1279 128020090408: 1281 Do not use Giant for kbdmux(4) locking. This is wrong and 1282 apparently causing more problems than it solves. This will 1283 re-open the issue where interrupt handlers may race with 1284 kbdmux(4) in polling mode. Typical symptoms include (but 1285 not limited to) duplicated and/or missing characters when 1286 low level console functions (such as gets) are used while 1287 interrupts are enabled (for example geli password prompt, 1288 mountroot prompt etc.). Disabling kbdmux(4) may help. 1289 129020090407: 1291 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1292 kernel modules referencing any of the above need to be recompiled. 1293 Bump __FreeBSD_version to 800075. 1294 129520090320: 1296 GEOM_PART has become the default partition slicer for storage devices, 1297 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1298 introduces some changes: 1299 1300 MSDOS/EBR: the devices created from MSDOS extended partition entries 1301 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1302 to devices with offset-based names. fstabs may need to be modified. 1303 1304 BSD: the "geometry does not match label" warning is harmless in most 1305 cases but it points to problems in file system misalignment with 1306 disk geometry. The "c" partition is now implicit, covers the whole 1307 top-level drive and cannot be (mis)used by users. 1308 1309 General: Kernel dumps are now not allowed to be written to devices 1310 whose partition types indicate they are meant to be used for file 1311 systems (or, in case of MSDOS partitions, as something else than 1312 the "386BSD" type). 1313 1314 Most of these changes date approximately from 200812. 1315 131620090319: 1317 The uscanner(4) driver has been removed from the kernel. This follows 1318 Linux removing theirs in 2.6 and making libusb the default interface 1319 (supported by sane). 1320 132120090319: 1322 The multicast forwarding code has been cleaned up. netstat(1) 1323 only relies on KVM now for printing bandwidth upcall meters. 1324 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1325 ip6_mroute_mod respectively. The config(5) options for statically 1326 compiling this code remain the same, i.e. 'options MROUTING'. 1327 132820090315: 1329 Support for the IFF_NEEDSGIANT network interface flag has been 1330 removed, which means that non-MPSAFE network device drivers are no 1331 longer supported. In particular, if_ar, if_sr, and network device 1332 drivers from the old (legacy) USB stack can no longer be built or 1333 used. 1334 133520090313: 1336 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1337 a bunch of new language catalog files have also been added. 1338 This means that some common libc messages are now localized and 1339 they depend on the LC_MESSAGES environmental variable. 1340 134120090313: 1342 The k8temp(4) driver has been renamed to amdtemp(4) since 1343 support for Family 10 and Family 11 CPU families was added. 1344 134520090309: 1346 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1347 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1348 1349 For kernel developers, the most important changes are that the 1350 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1351 and this lock has been downgraded to a non-recursive mutex. 1352 1353 Transport protocols (UDP, Raw IP) are now responsible for filtering 1354 inbound multicast traffic according to group membership and source 1355 filters. The imo_multicast_filter() KPI exists for this purpose. 1356 Transports which do not use multicast (SCTP, TCP) already reject 1357 multicast by default. Forwarding and receive performance may improve 1358 as a mutex acquisition is no longer needed in the ip_input() 1359 low-level input path. in_addmulti() and in_delmulti() are shimmed 1360 to new KPIs which exist to support SSM in-kernel. 1361 1362 For application developers, it is recommended that loopback of 1363 multicast datagrams be disabled for best performance, as this 1364 will still cause the lock to be taken for each looped-back 1365 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1366 be tuned to 0 to disable loopback by default; it defaults to 1 1367 to preserve the existing behaviour. 1368 1369 For systems administrators, to obtain best performance with 1370 multicast reception and multiple groups, it is always recommended 1371 that a card with a suitably precise hash filter is used. Hash 1372 collisions will still result in the lock being taken within the 1373 transport protocol input path to check group membership. 1374 1375 If deploying FreeBSD in an environment with IGMP snooping switches, 1376 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1377 enabled; this forces 224.0.0.0/24 group membership to be announced 1378 via IGMP. 1379 1380 The size of 'struct igmpstat' has changed; netstat needs to be 1381 recompiled to reflect this. 1382 Bump __FreeBSD_version to 800070. 1383 138420090309: 1385 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1386 updated to use it. This requires a buildworld/installworld in order to 1387 update the library and dependencies (usbconfig, etc). Its advisable to 1388 rebuild all ports which uses libusb. More specific directions are given 1389 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1390 libusb are no longer required and can be removed. 1391 139220090302: 1393 A workaround is committed to allow the creation of System V shared 1394 memory segment of size > 2 GB on the 64-bit architectures. 1395 Due to a limitation of the existing ABI, the shm_segsz member 1396 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1397 wrong for large segments. Note that limits must be explicitly 1398 raised to allow such segments to be created. 1399 140020090301: 1401 The layout of struct ifnet has changed, requiring a rebuild of all 1402 network device driver modules. 1403 140420090227: 1405 The /dev handling for the new USB stack has changed, a 1406 buildworld/installworld is required for libusb20. 1407 140820090223: 1409 The new USB2 stack has now been permanently moved in and all kernel and 1410 module names reverted to their previous values (eg, usb, ehci, ohci, 1411 ums, ...). The old usb stack can be compiled in by prefixing the name 1412 with the letter 'o', the old usb modules have been removed. 1413 Updating entry 20090216 for xorg and 20090215 for libmap may still 1414 apply. 1415 141620090217: 1417 The rc.conf(5) option if_up_delay has been renamed to 1418 defaultroute_delay to better reflect its purpose. If you have 1419 customized this setting in /etc/rc.conf you need to update it to 1420 use the new name. 1421 142220090216: 1423 xorg 7.4 wants to configure its input devices via hald which does not 1424 yet work with USB2. If the keyboard/mouse does not work in xorg then 1425 add 1426 Option "AllowEmptyInput" "off" 1427 to your ServerLayout section. This will cause X to use the configured 1428 kbd and mouse sections from your xorg.conf. 1429 143020090215: 1431 The GENERIC kernels for all architectures now default to the new USB2 1432 stack. No kernel config options or code have been removed so if a 1433 problem arises please report it and optionally revert to the old USB 1434 stack. If you are loading USB kernel modules or have a custom kernel 1435 that includes GENERIC then ensure that usb names are also changed over, 1436 eg uftdi -> usb2_serial_ftdi. 1437 1438 Older programs linked against the ports libusb 0.1 need to be 1439 redirected to the new stack's libusb20. /etc/libmap.conf can 1440 be used for this: 1441 # Map old usb library to new one for usb2 stack 1442 libusb-0.1.so.8 libusb20.so.1 1443 144420090209: 1445 All USB ethernet devices now attach as interfaces under the name ueN 1446 (eg. ue0). This is to provide a predictable name as vendors often 1447 change usb chipsets in a product without notice. 1448 144920090203: 1450 The ichsmb(4) driver has been changed to require SMBus slave 1451 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1452 All of the other SMBus controller drivers require left-justified 1453 slave addresses, so this change makes all the drivers provide the 1454 same interface. 1455 145620090201: 1457 INET6 statistics (struct ip6stat) was updated. 1458 netstat(1) needs to be recompiled. 1459 146020090119: 1461 NTFS has been removed from GENERIC kernel on amd64 to match 1462 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1463 will load ntfs.ko module automatically when NTFS support is 1464 actually needed, unless ntfs.ko is not installed or security 1465 level prohibits loading kernel modules. If either is the case, 1466 "options NTFS" has to be added into kernel config. 1467 146820090115: 1469 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1470 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1471 800061. User space tools that rely on the size of struct tcpcb in 1472 tcp_var.h (e.g. sockstat) need to be recompiled. 1473 147420081225: 1475 ng_tty(4) module updated to match the new TTY subsystem. 1476 Due to API change, user-level applications must be updated. 1477 New API support added to mpd5 CVS and expected to be present 1478 in next mpd5.3 release. 1479 148020081219: 1481 With __FreeBSD_version 800060 the makefs tool is part of 1482 the base system (it was a port). 1483 148420081216: 1485 The afdata and ifnet locks have been changed from mutexes to 1486 rwlocks, network modules will need to be re-compiled. 1487 148820081214: 1489 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1490 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1491 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1492 architecture and 40 bytes on 64-bit architecture. The userland 1493 applications "arp" and "ndp" have been updated accordingly. 1494 The output from "netstat -r" shows only routing entries and 1495 none of the L2 information. 1496 149720081130: 1498 __FreeBSD_version 800057 marks the switchover from the 1499 binary ath hal to source code. Users must add the line: 1500 1501 options AH_SUPPORT_AR5416 1502 1503 to their kernel config files when specifying: 1504 1505 device ath_hal 1506 1507 The ath_hal module no longer exists; the code is now compiled 1508 together with the driver in the ath module. It is now 1509 possible to tailor chip support (i.e. reduce the set of chips 1510 and thereby the code size); consult ath_hal(4) for details. 1511 151220081121: 1513 __FreeBSD_version 800054 adds memory barriers to 1514 <machine/atomic.h>, new interfaces to ifnet to facilitate 1515 multiple hardware transmit queues for cards that support 1516 them, and a lock-less ring-buffer implementation to 1517 enable drivers to more efficiently manage queueing of 1518 packets. 1519 152020081117: 1521 A new version of ZFS (version 13) has been merged to -HEAD. 1522 This version has zpool attribute "listsnapshots" off by 1523 default, which means "zfs list" does not show snapshots, 1524 and is the same as Solaris behavior. 1525 152620081028: 1527 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1528 152920081009: 1530 The uhci, ohci, ehci and slhci USB Host controller drivers have 1531 been put into separate modules. If you load the usb module 1532 separately through loader.conf you will need to load the 1533 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1534 controller add the following to loader.conf: 1535 1536 uhci_load="YES" 1537 ehci_load="YES" 1538 153920081009: 1540 The ABI used by the PMC toolset has changed. Please keep 1541 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1542 sync. 1543 154420081009: 1545 atapci kernel module now includes only generic PCI ATA 1546 driver. AHCI driver moved to ataahci kernel module. 1547 All vendor-specific code moved into separate kernel modules: 1548 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1549 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1550 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1551 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1552 155320080820: 1554 The TTY subsystem of the kernel has been replaced by a new 1555 implementation, which provides better scalability and an 1556 improved driver model. Most common drivers have been migrated to 1557 the new TTY subsystem, while others have not. The following 1558 drivers have not yet been ported to the new TTY layer: 1559 1560 PCI/ISA: 1561 cy, digi, rc, rp, sio 1562 1563 USB: 1564 ubser, ucycom 1565 1566 Line disciplines: 1567 ng_h4, ng_tty, ppp, sl, snp 1568 1569 Adding these drivers to your kernel configuration file shall 1570 cause compilation to fail. 1571 157220080818: 1573 ntpd has been upgraded to 4.2.4p5. 1574 157520080801: 1576 OpenSSH has been upgraded to 5.1p1. 1577 1578 For many years, FreeBSD's version of OpenSSH preferred DSA 1579 over RSA for host and user authentication keys. With this 1580 upgrade, we've switched to the vendor's default of RSA over 1581 DSA. This may cause upgraded clients to warn about unknown 1582 host keys even for previously known hosts. Users should 1583 follow the usual procedure for verifying host keys before 1584 accepting the RSA key. 1585 1586 This can be circumvented by setting the "HostKeyAlgorithms" 1587 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1588 command line. 1589 1590 Please note that the sequence of keys offered for 1591 authentication has been changed as well. You may want to 1592 specify IdentityFile in a different order to revert this 1593 behavior. 1594 159520080713: 1596 The sio(4) driver has been removed from the i386 and amd64 1597 kernel configuration files. This means uart(4) is now the 1598 default serial port driver on those platforms as well. 1599 1600 To prevent collisions with the sio(4) driver, the uart(4) driver 1601 uses different names for its device nodes. This means the 1602 onboard serial port will now most likely be called "ttyu0" 1603 instead of "ttyd0". You may need to reconfigure applications to 1604 use the new device names. 1605 1606 When using the serial port as a boot console, be sure to update 1607 /boot/device.hints and /etc/ttys before booting the new kernel. 1608 If you forget to do so, you can still manually specify the hints 1609 at the loader prompt: 1610 1611 set hint.uart.0.at="isa" 1612 set hint.uart.0.port="0x3F8" 1613 set hint.uart.0.flags="0x10" 1614 set hint.uart.0.irq="4" 1615 boot -s 1616 161720080609: 1618 The gpt(8) utility has been removed. Use gpart(8) to partition 1619 disks instead. 1620 162120080603: 1622 The version that Linuxulator emulates was changed from 2.4.2 1623 to 2.6.16. If you experience any problems with Linux binaries 1624 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1625 if it fixes the problem contact emulation mailing list. 1626 162720080525: 1628 ISDN4BSD (I4B) was removed from the src tree. You may need to 1629 update a your kernel configuration and remove relevant entries. 1630 163120080509: 1632 I have checked in code to support multiple routing tables. 1633 See the man pages setfib(1) and setfib(2). 1634 This is a hopefully backwards compatible version, 1635 but to make use of it you need to compile your kernel 1636 with options ROUTETABLES=2 (or more up to 16). 1637 163820080420: 1639 The 802.11 wireless support was redone to enable multi-bss 1640 operation on devices that are capable. The underlying device 1641 is no longer used directly but instead wlanX devices are 1642 cloned with ifconfig. This requires changes to rc.conf files. 1643 For example, change: 1644 ifconfig_ath0="WPA DHCP" 1645 to 1646 wlans_ath0=wlan0 1647 ifconfig_wlan0="WPA DHCP" 1648 see rc.conf(5) for more details. In addition, mergemaster of 1649 /etc/rc.d is highly recommended. Simultaneous update of userland 1650 and kernel wouldn't hurt either. 1651 1652 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1653 modules were merged into the base wlan module. All references 1654 to these modules (e.g. in kernel config files) must be removed. 1655 165620080408: 1657 psm(4) has gained write(2) support in native operation level. 1658 Arbitrary commands can be written to /dev/psm%d and status can 1659 be read back from it. Therefore, an application is responsible 1660 for status validation and error recovery. It is a no-op in 1661 other operation levels. 1662 166320080312: 1664 Support for KSE threading has been removed from the kernel. To 1665 run legacy applications linked against KSE libmap.conf may 1666 be used. The following libmap.conf may be used to ensure 1667 compatibility with any prior release: 1668 1669 libpthread.so.1 libthr.so.1 1670 libpthread.so.2 libthr.so.2 1671 libkse.so.3 libthr.so.3 1672 167320080301: 1674 The layout of struct vmspace has changed. This affects libkvm 1675 and any executables that link against libkvm and use the 1676 kvm_getprocs() function. In particular, but not exclusively, 1677 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1678 The effects are minimal, but it's advisable to upgrade world 1679 nonetheless. 1680 168120080229: 1682 The latest em driver no longer has support in it for the 1683 82575 adapter, this is now moved to the igb driver. The 1684 split was done to make new features that are incompatible 1685 with older hardware easier to do. 1686 168720080220: 1688 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1689 likewise the kernel option is now GEOM_LINUX_LVM. 1690 169120080211: 1692 The default NFS mount mode has changed from UDP to TCP for 1693 increased reliability. If you rely on (insecurely) NFS 1694 mounting across a firewall you may need to update your 1695 firewall rules. 1696 169720080208: 1698 Belatedly note the addition of m_collapse for compacting 1699 mbuf chains. 1700 170120080126: 1702 The fts(3) structures have been changed to use adequate 1703 integer types for their members and so to be able to cope 1704 with huge file trees. The old fts(3) ABI is preserved 1705 through symbol versioning in libc, so third-party binaries 1706 using fts(3) should still work, although they will not take 1707 advantage of the extended types. At the same time, some 1708 third-party software might fail to build after this change 1709 due to unportable assumptions made in its source code about 1710 fts(3) structure members. Such software should be fixed 1711 by its vendor or, in the worst case, in the ports tree. 1712 FreeBSD_version 800015 marks this change for the unlikely 1713 case that a portable fix is impossible. 1714 171520080123: 1716 To upgrade to -current after this date, you must be running 1717 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1718 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1719 172020071128: 1721 The ADAPTIVE_GIANT kernel option has been retired because its 1722 functionality is the default now. 1723 172420071118: 1725 The AT keyboard emulation of sunkbd(4) has been turned on 1726 by default. In order to make the special symbols of the Sun 1727 keyboards driven by sunkbd(4) work under X these now have 1728 to be configured the same way as Sun USB keyboards driven 1729 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1730 1731 Option "XkbLayout" "us" 1732 Option "XkbRules" "xorg" 1733 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1734 173520071024: 1736 It has been decided that it is desirable to provide ABI 1737 backwards compatibility to the FreeBSD 4/5/6 versions of the 1738 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1739 broken with the introduction of PCI domain support (see the 1740 20070930 entry). Unfortunately, this required the ABI of 1741 PCIOCGETCONF to be broken again in order to be able to 1742 provide backwards compatibility to the old version of that 1743 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1744 again. As for prominent ports this affects neither pciutils 1745 nor xorg-server this time, the hal port needs to be rebuilt 1746 however. 1747 174820071020: 1749 The misnamed kthread_create() and friends have been renamed 1750 to kproc_create() etc. Many of the callers already 1751 used kproc_start().. 1752 I will return kthread_create() and friends in a while 1753 with implementations that actually create threads, not procs. 1754 Renaming corresponds with version 800002. 1755 175620071010: 1757 RELENG_7 branched. 1758 1759COMMON ITEMS: 1760 1761 General Notes 1762 ------------- 1763 Avoid using make -j when upgrading. While generally safe, there are 1764 sometimes problems using -j to upgrade. If your upgrade fails with 1765 -j, please try again without -j. From time to time in the past there 1766 have been problems using -j with buildworld and/or installworld. This 1767 is especially true when upgrading between "distant" versions (eg one 1768 that cross a major release boundary or several minor releases, or when 1769 several months have passed on the -current branch). 1770 1771 Sometimes, obscure build problems are the result of environment 1772 poisoning. This can happen because the make utility reads its 1773 environment when searching for values for global variables. To run 1774 your build attempts in an "environmental clean room", prefix all make 1775 commands with 'env -i '. See the env(1) manual page for more details. 1776 1777 When upgrading from one major version to another it is generally best 1778 to upgrade to the latest code in the currently installed branch first, 1779 then do an upgrade to the new branch. This is the best-tested upgrade 1780 path, and has the highest probability of being successful. Please try 1781 this approach before reporting problems with a major version upgrade. 1782 1783 ZFS notes 1784 --------- 1785 When upgrading the boot ZFS pool to a new version, always follow 1786 these two steps: 1787 1788 1.) recompile and reinstall the ZFS boot loader and boot block 1789 (this is part of "make buildworld" and "make installworld") 1790 1791 2.) update the ZFS boot block on your boot drive 1792 1793 The following example updates the ZFS boot block on the first 1794 partition (freebsd-boot) of a GPT partitioned drive ad0: 1795 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1796 1797 Non-boot pools do not need these updates. 1798 1799 To build a kernel 1800 ----------------- 1801 If you are updating from a prior version of FreeBSD (even one just 1802 a few days old), you should follow this procedure. It is the most 1803 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1804 1805 make kernel-toolchain 1806 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1807 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1808 1809 To test a kernel once 1810 --------------------- 1811 If you just want to boot a kernel once (because you are not sure 1812 if it works, or if you want to boot a known bad kernel to provide 1813 debugging information) run 1814 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1815 nextboot -k testkernel 1816 1817 To just build a kernel when you know that it won't mess you up 1818 -------------------------------------------------------------- 1819 This assumes you are already running a CURRENT system. Replace 1820 ${arch} with the architecture of your machine (e.g. "i386", 1821 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1822 1823 cd src/sys/${arch}/conf 1824 config KERNEL_NAME_HERE 1825 cd ../compile/KERNEL_NAME_HERE 1826 make depend 1827 make 1828 make install 1829 1830 If this fails, go to the "To build a kernel" section. 1831 1832 To rebuild everything and install it on the current system. 1833 ----------------------------------------------------------- 1834 # Note: sometimes if you are running current you gotta do more than 1835 # is listed here if you are upgrading from a really old current. 1836 1837 <make sure you have good level 0 dumps> 1838 make buildworld 1839 make kernel KERNCONF=YOUR_KERNEL_HERE 1840 [1] 1841 <reboot in single user> [3] 1842 mergemaster -p [5] 1843 make installworld 1844 mergemaster -i [4] 1845 make delete-old [6] 1846 <reboot> 1847 1848 1849 To cross-install current onto a separate partition 1850 -------------------------------------------------- 1851 # In this approach we use a separate partition to hold 1852 # current's root, 'usr', and 'var' directories. A partition 1853 # holding "/", "/usr" and "/var" should be about 2GB in 1854 # size. 1855 1856 <make sure you have good level 0 dumps> 1857 <boot into -stable> 1858 make buildworld 1859 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1860 <maybe newfs current's root partition> 1861 <mount current's root partition on directory ${CURRENT_ROOT}> 1862 make installworld DESTDIR=${CURRENT_ROOT} 1863 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1864 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1865 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1866 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1867 <reboot into current> 1868 <do a "native" rebuild/install as described in the previous section> 1869 <maybe install compatibility libraries from ports/misc/compat*> 1870 <reboot> 1871 1872 1873 To upgrade in-place from stable to current 1874 ---------------------------------------------- 1875 <make sure you have good level 0 dumps> 1876 make buildworld [9] 1877 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1878 [1] 1879 <reboot in single user> [3] 1880 mergemaster -p [5] 1881 make installworld 1882 mergemaster -i [4] 1883 make delete-old [6] 1884 <reboot> 1885 1886 Make sure that you've read the UPDATING file to understand the 1887 tweaks to various things you need. At this point in the life 1888 cycle of current, things change often and you are on your own 1889 to cope. The defaults can also change, so please read ALL of 1890 the UPDATING entries. 1891 1892 Also, if you are tracking -current, you must be subscribed to 1893 freebsd-current@freebsd.org. Make sure that before you update 1894 your sources that you have read and understood all the recent 1895 messages there. If in doubt, please track -stable which has 1896 much fewer pitfalls. 1897 1898 [1] If you have third party modules, such as vmware, you 1899 should disable them at this point so they don't crash your 1900 system on reboot. 1901 1902 [3] From the bootblocks, boot -s, and then do 1903 fsck -p 1904 mount -u / 1905 mount -a 1906 cd src 1907 adjkerntz -i # if CMOS is wall time 1908 Also, when doing a major release upgrade, it is required that 1909 you boot into single user mode to do the installworld. 1910 1911 [4] Note: This step is non-optional. Failure to do this step 1912 can result in a significant reduction in the functionality of the 1913 system. Attempting to do it by hand is not recommended and those 1914 that pursue this avenue should read this file carefully, as well 1915 as the archives of freebsd-current and freebsd-hackers mailing lists 1916 for potential gotchas. The -U option is also useful to consider. 1917 See mergemaster(8) for more information. 1918 1919 [5] Usually this step is a noop. However, from time to time 1920 you may need to do this if you get unknown user in the following 1921 step. It never hurts to do it all the time. You may need to 1922 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1923 install) after the buildworld before this step if you last updated 1924 from [78]-stable or 9-stable before 20130430. 1925 1926 [6] This only deletes old files and directories. Old libraries 1927 can be deleted by "make delete-old-libs", but you have to make 1928 sure that no program is using those libraries anymore. 1929 1930 [8] In order to have a kernel that can run the 4.x binaries needed to 1931 do an installworld, you must include the COMPAT_FREEBSD4 option in 1932 your kernel. Failure to do so may leave you with a system that is 1933 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1934 required to run the 5.x binaries on more recent kernels. And so on 1935 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1936 1937 Make sure that you merge any new devices from GENERIC since the 1938 last time you updated your kernel config file. 1939 1940 [9] When checking out sources, you must include the -P flag to have 1941 cvs prune empty directories. 1942 1943 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1944 "?=" instead of the "=" assignment operator, so that buildworld can 1945 override the CPUTYPE if it needs to. 1946 1947 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1948 not on the command line, or in /etc/make.conf. buildworld will 1949 warn if it is improperly defined. 1950FORMAT: 1951 1952This file contains a list, in reverse chronological order, of major 1953breakages in tracking -current. It is not guaranteed to be a complete 1954list of such breakages, and only contains entries since October 10, 2007. 1955If you need to see UPDATING entries from before that date, you will need 1956to fetch an UPDATING file from an older FreeBSD release. 1957 1958Copyright information: 1959 1960Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1961 1962Redistribution, publication, translation and use, with or without 1963modification, in full or in part, in any form or format of this 1964document are permitted without further permission from the author. 1965 1966THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1967IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1968WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1969DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1970INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1971(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1972SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1973HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1974STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1975IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1976POSSIBILITY OF SUCH DAMAGE. 1977 1978Contact Warner Losh if you have any questions about your use of 1979this document. 1980 1981$FreeBSD: releng/9.3/UPDATING 303304 2016-07-25 15:04:17Z delphij $ 1982