UPDATING revision 306230
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 1420160923 p46 FreeBSD-SA-16:26.openssl 15 16 Fix multiple OpenSSL vulnerabilitites. 17 1820160725 p45 FreeBSD-SA-16:25.bspatch 19 FreeBSD-EN-16:09.freebsd-update 20 21 Fix bspatch heap overflow vulnerability. [SA-16:25] 22 23 Fix freebsd-update(8) support of FreeBSD 11.0 release 24 distribution. [EN-16:09] 25 2620160604 p44 FreeBSD-SA-16:24.ntp 27 28 Fix multiple vulnerabilities of ntp. 29 3020160531 p43 FreeBSD-SA-16:20.linux 31 FreeBSD-SA-16:21.43bsd 32 FreeBSD-SA-16:22.libarchive 33 FreeBSD-SA-16:23.libarchive 34 35 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 36 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 37 Fix directory traversal in cpio(1). [SA-16:22] 38 Fix buffer overflow in libarchive(3). [SA-16:23] 39 4020160517 p42 FreeBSD-SA-16:18.atkbd 41 42 Fix buffer overflow in keyboard driver. [SA-16:18] 43 4420160504 p41 FreeBSD-SA-16:17.openssl 45 FreeBSD-EN-16:08.zfs 46 47 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 48 49 Fix memory leak in ZFS. [EN-16:08] 50 5120160429 p40 FreeBSD-SA-16:16.ntp 52 53 Fix multiple vulnerabilities of ntp. 54 5520160316 p39 FreeBSD-SA-16:14.openssh-xauth 56 FreeBSD-SA-16:15.sysarch 57 58 Fix OpenSSH xauth(1) command injection. [SA-16:14] 59 Fix incorrect argument validation in sysarch(2). [SA-16:15] 60 6120160310 p38 FreeBSD-SA-16:13.bind 62 FreeBSD-SA-16:12.openssl [revised] 63 64 Fix multiple vulnerabilities of BIND. [SA-16:13] 65 66 Fix a regression with OpenSSL patch. [SA-16:12] 67 6820160303 p37 FreeBSD-SA-16:12.openssl 69 70 Fix multiple vulnerabilities of OpenSSL. 71 7220160130 p36 FreeBSD-SA-16:11.openssl 73 74 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 75 7620160127 p35 FreeBSD-SA-16:08.bind 77 FreeBSD-SA-16:09.ntp 78 FreeBSD-SA-16:10.linux 79 80 Fix BIND remote denial of service vulnerability. [SA-16:08] 81 82 Fix multiple vulnerabilities of ntp. [SA-16:09] 83 84 Fix Linux compatibility layer issetugid(2) system call 85 vulnerability. [SA-16:10] 86 8720160114 p34 FreeBSD-SA-16:07.openssh 88 89 Fix OpenSSH client information leak. [SA-16:07] 90 9120160114 p33 FreeBSD-EN-16:02.pf 92 FreeBSD-EN-16:03.yplib 93 FreeBSD-SA-16:01.sctp 94 FreeBSD-SA-16:02.ntp 95 FreeBSD-SA-16:03.linux 96 FreeBSD-SA-16:04.linux 97 FreeBSD-SA-16:05.tcp 98 FreeBSD-SA-16:06.bsnmpd 99 100 Fix pf(4) generating bad TCP checksums. [EN-16:02] 101 Fix infinite loop in YP/NIS client library. [EN-16:03] 102 Fix remote denial of service in SCTP. [SA-16:01] 103 Update NTP to 4.2.8p5. [SA-16:02] 104 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 105 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 106 Fix crash in TCP MD5 signatures. [SA-16:05] 107 Fix insecure default permissions for snmpd.config. [SA-16:06] 108 10920151216 p32 FreeBSD-SA-15:27.bind 110 Fix BIND remote denial of service vulnerability. [SA-15:27] 111 11220151205 p31 FreeBSD-SA-15:26.openssl 113 114 Fix OpenSSL X509_ATTRIBUTE memory leak. [SA-15:26] 115 11620151104 p30 FreeBSD-SA-15:25.ntp [revised] 117 FreeBSD-EN-15:19.kqueue 118 FreeBSD-EN-15:20.vm 119 120 Fix regression of ntpq(8) utility exiting due to trap 6 in 121 9.3-RELEASE-p29. [SA-15:25] 122 123 Fix regression in ntpd(8) lacking support for RAWDCF reference 124 clock in 9.3-RELEASE-p29. [SA-15:25] 125 126 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 127 128 Fix applications exiting due to segmentation violation on a correct 129 memory address. [EN-15:20] 130 13120151026: p29 FreeBSD-SA-15:25.ntp 132 133 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 134 135 The configuration file syntax has been changed, thus mergemaster 136 run is recommended. Now the "kod" parameter requires "limited" 137 parameter. If the ntp.conf is not updated, the ntpd will run 138 successfully, but with KoD disabled. 139 14020151002: p28 FreeBSD-SA-15:24.rpcbind [revised] 141 Revised patch to address a regression that prevents NIS from working. 142 14320150929: p27 FreeBSD-SA-15:24.rpcbind 144 145 Fix rpcbind(8) remote denial of service. [SA-15:24] 146 14720150916: p26 FreeBSD-EN-15:18.pkg 148 149 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 150 15120150902: p25 FreeBSD-SA-15:23.bind 152 153 Fix BIND remote denial of service vulnerability. [SA-15:23] 154 15520150825: p24 FreeBSD-SA-15:21.amd64 156 FreeBSD-SA-15:22.openssh 157 FreeBSD-EN-15:15.pkg 158 159 Fix local privilege escalation in IRET handler. [SA-15:21] 160 161 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 162 163 Fix insufficient check of unsupported pkg(7) signature methods. 164 [EN-15:15] 165 16620150818: p23 FreeBSD-SA-15:20.expat 167 168 Fix multiple integer overflows in expat (libbsdxml) XML parser. 169 [SA-15:20] 170 17120150805: p22 FreeBSD-SA-15:19.routed 172 173 Fix routed remote denial of service vulnerability. 174 17520150728: p21 FreeBSD-SA-15:15.tcp 176 FreeBSD-SA-15:16.openssh 177 FreeBSD-SA-15:17.bind 178 179 Fix resource exhaustion in TCP reassembly. [SA-15:15] 180 181 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 182 183 Fix BIND remote denial of service vulnerability. [SA-15:17] 184 18520150721: p20 FreeBSD-SA-15:13.tcp 186 187 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 188 [SA-15:13] 189 19020150707: p19 FreeBSD-SA-15:11.bind 191 Fix BIND resolver remote denial of service when validating. 192 19320150630: p18 FreeBSD-EN-15:08.sendmail [revised] 194 FreeBSD-EN-15:09.xlocale 195 196 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 197 198 Fix inconsistency between locale and rune locale states. 199 [EN-15:09] 200 20120150618: p17 FreeBSD-EN-15:08.sendmail 202 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 203 20420150612: p16 FreeBSD-SA-15:10.openssl 205 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 206 20720150609: p15 FreeBSD-EN-15:06.file 208 209 Updated base system file(1) to 5.22 to address multiple denial 210 of service issues. 211 21220150513: p14 FreeBSD-EN-15:04.freebsd-update 213 214 Fix bug with freebsd-update(8) that does not ensure the previous 215 upgrade was completed. [EN-15:04] 216 21720150407: p13 FreeBSD-SA-15:04.igmp [revised] 218 FreeBSD-SA-15:07.ntp 219 FreeBSD-SA-15:09.ipv6 220 221 Improved patch for SA-15:04.igmp. 222 223 Fix multiple vulnerabilities of ntp. [SA-15:07] 224 225 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 226 22720150320: p12 228 Fix patch for SA-15:06.openssl. 229 23020150319: p11 FreeBSD-SA-15:06.openssl 231 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 232 23320150225: p10 FreeBSD-SA-15:04.igmp 234 FreeBSD-SA-15:05.bind 235 FreeBSD-EN-15:01.vt 236 FreeBSD-EN-15:02.openssl 237 FreeBSD-EN-15:03.freebsd-update 238 239 Fix integer overflow in IGMP protocol. [SA-15:04] 240 241 Fix BIND remote denial of service vulnerability. [SA-15:05] 242 243 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 244 245 Updated base system OpenSSL to 0.9.8zd. [EN-15:02] 246 247 Fix freebsd-update libraries update ordering issue. [EN-15:03] 248 24920150127: p9 FreeBSD-SA-15:02.kmem 250 FreeBSD-SA-15:03.sctp 251 252 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 253 vulnerability. [SA-15:02] 254 255 Fix SCTP stream reset vulnerability. [SA-15:03] 256 25720150114: p8 FreeBSD-SA-15:01.openssl 258 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 259 26020141223: p7 FreeBSD-SA-14:31.ntp 261 FreeBSD-EN-14:13.freebsd-update 262 263 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 264 Fix directory deletion issue in freebsd-update. [EN-14:13] 265 26620141210: p6 FreeBSD-SA-14:28.file 267 FreeBSD-SA-14:29.bind 268 269 Fix multiple vulnerabilities in file(1) and libmagic(3). 270 [SA-14:28] 271 272 Fix BIND remote denial of service vulnerability. [SA-14:29] 273 27420141104: p5 FreeBSD-SA-14:25.setlogin 275 FreeBSD-SA-14:26.ftp 276 FreeBSD-EN-14:12.zfs 277 278 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 279 [SA-14:25] 280 281 Fix remote command execution in ftp(1). [SA-14:26] 282 283 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 284 28520141022: p4 FreeBSD-EN-14:10.tzdata 286 FreeBSD-EN-14:11.crypt 287 288 Time zone data file update. [EN-14:10] 289 290 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 291 29220141021: p3 FreeBSD-SA-14:20.rtsold 293 FreeBSD-SA-14:21.routed 294 FreeBSD-SA-14:22.namei 295 FreeBSD-SA-14:23.openssl 296 297 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 298 299 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 300 301 Fix memory leak in sandboxed namei lookup. [SA-14:22] 302 303 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 304 30520140916: p2 FreeBSD-SA-14:19.tcp 306 Fix Denial of Service in TCP packet processing. [SA-14:19] 307 30820140909: p1 FreeBSD-SA-14:18.openssl 309 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 310 31120140716: 312 9.3-RELEASE. 313 31420140608: 315 On i386 and amd64 systems, the onifconsole flag is now set by default 316 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 317 as a login TTY if it is set in the bootloader as an active kernel 318 console. No changes in behavior should result otherwise. To revert to 319 the previous behavior, set ttyu0 to "off" in /etc/ttys. 320 32120140512: 322 Clang and llvm have been upgraded to 3.4.1 release. 323 32420140321: 325 Clang and llvm have been upgraded to 3.4 release. 326 32720140216: 328 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 329 been deprecated and will not be part of FreeBSD 11.0 and later 330 releases. If you use this driver, please consider switching to 331 the nfe(4) driver instead. 332 33320131216: 334 The behavior of gss_pseudo_random() for the krb5 mechanism 335 has changed, for applications requesting a longer random string 336 than produced by the underlying enctype's pseudo-random() function. 337 In particular, the random string produced from a session key of 338 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 339 be different at the 17th octet and later, after this change. 340 The counter used in the PRF+ construction is now encoded as a 341 big-endian integer in accordance with RFC 4402. 342 __FreeBSD_version is bumped to 902505. 343 34420130930: 345 9.2-RELEASE. 346 34720130823: 348 Behavior of devfs rules path matching has been changed. 349 Pattern is now always matched against fully qualified devfs 350 path and slash characters must be explicitly matched by 351 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 352 subdirectories must be reviewed. 353 35420130705: 355 hastctl(8)'s `status' command output changed to terse one-liner format. 356 Scripts using this should switch to `list' command or be rewritten. 357 35820130618: 359 Fix a bug that allowed a tracing process (e.g. gdb) to write 360 to a memory-mapped file in the traced process's address space 361 even if neither the traced process nor the tracing process had 362 write access to that file. 363 36420130605: 365 Added ZFS TRIM support which is enabled by default. To disable 366 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 367 368 Creating new ZFS pools and adding new devices to existing pools 369 first performs a full device level TRIM which can take a significant 370 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 371 to disable this behaviour. 372 373 ZFS TRIM requires the underlying device support BIO_DELETE which 374 is currently provided by methods such as ATA TRIM and SCSI UNMAP 375 via CAM, which are typically supported by SSD's. 376 377 Stats for ZFS TRIM can be monitored by looking at the sysctl's 378 under kstat.zfs.misc.zio_trim. 379 38020130524: 381 `list' command has been added to hastctl(8). For now, it is full 382 equivalent of `status' command. 383 WARNING: in the near future the output of hastctl's status command 384 will change to more terse format. If you use `hastctl status' 385 for parsing in your scripts, switch to `hastctl list'. 386 38720130430: 388 The mergemaster command now uses the default MAKEOBJDIRPREFIX 389 rather than creating it's own in the temporary directory in 390 order allow access to bootstrapped versions of tools such as 391 install and mtree. When upgrading from version of FreeBSD where 392 the install command does not support -l, you will need to 393 install a new mergemaster command if mergemaster -p is required. 394 This can be accomplished with the command (cd src/usr.sbin/mergemaster 395 && make install). 396 397 Due to the use of the new -l option to install(1) during build 398 and install, you must take care not to directly set the INSTALL 399 make variable in your /etc/make.conf, /etc/src.conf, or on the 400 command line. If you wish to use the -C flag for all installs 401 you may be able to add INSTALL+=-C to /etc/make.conf or 402 /etc/src.conf. 403 40420130429: 405 Fix a bug that allows NFS clients to issue READDIR on files. 406 40720130315: 408 The install(1) option -M has changed meaning and now takes an 409 argument that is a file or path to append logs to. In the 410 unlikely event that -M was the last option on the command line 411 and the command line contained at least two files and a target 412 directory the first file will have logs appended to it. The -M 413 option served little practical purpose in the last decade so it's 414 used expected to be extremely rare. 415 41620130225: 417 A new compression method (lz4) has been merged to. Please refer to 418 zpool-features(7) for more information. 419 420 Please refer to the "ZFS notes" section of this file for information 421 on upgrading boot ZFS pools. 422 42320121224: 424 The VFS KBI was changed with the merge of several nullfs 425 optimizations and fixes. All filesystem modules must be 426 recompiled. 427 42820121218: 429 With the addition of auditdistd(8), a new auditdistd user is now 430 depended on during installworld. "mergemaster -p" can be used to add 431 the user prior to installworld, as documented in the handbook. 432 43320121205: 434 9.1-RELEASE. 435 43620121129: 437 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 438 Starting with this version the old system of ZFS pool versioning 439 is superseded by "feature flags". This concept enables forward 440 compatibility against certain future changes in functionality of ZFS 441 pools. The first two read-only compatible "feature flags" for ZFS 442 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 443 For more information read the new zpool-features(7) manual page. 444 Please refer to the "ZFS notes" section of this file for information 445 on upgrading boot ZFS pools. 446 44720121114: 448 The commit introducing bsd.compiler.mk breaks the traditional 449 building of kernels before this point. Add -m ${SRC}/share/mk 450 (for the right value of SRC) to your command lines to work 451 around; update your useland to a point after this; or use the 452 buildkernel/installkernel top-level targets. See also 20120829. 453 45420121102: 455 The IPFIREWALL_FORWARD kernel option has been removed. Its 456 functionality now turned on by default. 457 45820120913: 459 The random(4) support for the VIA hardware random number 460 generator (`PADLOCK') is no longer enabled unconditionally. 461 Add the PADLOCK_RNG option in the custom kernel config if 462 needed. The GENERIC kernels on i386 and amd64 do include the 463 option, so the change only affects the custom kernel 464 configurations. 465 46620120829: 467 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 468 the traditional method, you must update your system with an installworld 469 before the kernel will build. The documented make buildkernel/installkernel 470 interfaces (coupled with fresh make kernel-toolchain) continue to work. 471 47220120727: 473 The sparc64 ZFS loader has been changed to no longer try to auto- 474 detect ZFS providers based on diskN aliases but now requires these 475 to be explicitly listed in the OFW boot-device environment variable. 476 47720120422: 478 Now unix domain sockets behave "as expected" on nullfs(5). Previously 479 nullfs(5) did not pass through all behaviours to the underlying layer, 480 as a result if we bound to a socket on the lower layer we could connect 481 only to the lower path; if we bound to the upper layer we could connect 482 only to the upper path. The new behavior is one can connect to both the 483 lower and the upper paths regardless what layer path one binds to. 484 48520120109: 486 The acpi_wmi(4) status device /dev/wmistat has been renamed to 487 /dev/wmistat0. 488 48920120106: 490 A new VOP_ADVISE() was added to support posix_fadvise(2). All 491 filesystem modules must be recompiled. 492 49320120106: 494 The interface of the VOP_VPTOCNP(9) changed, now the returned 495 vnode shall be referenced, previously it was required to be 496 only held. All in-tree filesystems are converted. 497 49820120106: 499 9.0-RELEASE. 500 50120111101: 502 The broken amd(4) driver has been replaced with esp(4) in the amd64, 503 i386 and pc98 GENERIC kernel configuration files. 504 50520110913: 506 This commit modifies vfs_register() so that it uses a hash 507 calculation to set vfc_typenum, which is enabled by default. 508 The first time a system is booted after this change, the 509 vfc_typenum values will change for all file systems. The 510 main effect of this is a change to the NFS server file handles 511 for file systems that use vfc_typenum in their fsid, such as ZFS. 512 It will, however, prevent vfc_typenum from changing when file 513 systems are loaded in a different order for subsequent reboots. 514 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 515 until you are ready to remount all NFS clients after a reboot. 516 51720110828: 518 Bump the shared library version numbers for libraries that 519 do not use symbol versioning, have changed the ABI compared 520 to stable/8 and which shared library version was not bumped. 521 Done as part of 9.0-RELEASE cycle. 522 52320110815: 524 During the merge of Capsicum features, the fget(9) KPI was modified. 525 This may require the rebuilding of out-of-tree device drivers -- 526 issues have been reported specifically with the nVidia device driver. 527 __FreeBSD_version is bumped to 900041. 528 529 Also, there is a period between 20110811 and 20110814 where the 530 special devices /dev/{stdin,stdout,stderr} did not work correctly. 531 Building world from a kernel during that window may not work. 532 53320110628: 534 The packet filter (pf) code has been updated to OpenBSD 4.5. 535 You need to update userland tools to be in sync with kernel. 536 This update breaks backward compatibility with earlier pfsync(4) 537 versions. Care must be taken when updating redundant firewall setups. 538 53920110608: 540 The following sysctls and tunables are retired on x86 platforms: 541 machdep.hlt_cpus 542 machdep.hlt_logical_cpus 543 The following sysctl is retired: 544 machdep.hyperthreading_allowed 545 The sysctls were supposed to provide a way to dynamically offline and 546 online selected CPUs on x86 platforms, but the implementation has not 547 been reliable especially with SCHED_ULE scheduler. 548 machdep.hyperthreading_allowed tunable is still available to ignore 549 hyperthreading CPUs at OS level. 550 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 551 where X is an APIC ID of a CPU. Be advised, though, that disabling 552 CPUs in non-uniform fashion will result in non-uniform topology and 553 may lead to sub-optimal system performance with SCHED_ULE, which is 554 a default scheduler. 555 55620110607: 557 cpumask_t type is retired and cpuset_t is used in order to describe 558 a mask of CPUs. 559 56020110531: 561 Changes to ifconfig(8) for dynamic address family detection mandate 562 that you are running a kernel of 20110525 or later. Make sure to 563 follow the update procedure to boot a new kernel before installing 564 world. 565 56620110513: 567 Support for sun4v architecture is officially dropped 568 56920110503: 570 Several KPI breaking changes have been committed to the mii(4) layer, 571 the PHY drivers and consequently some Ethernet drivers using mii(4). 572 This means that miibus.ko and the modules of the affected Ethernet 573 drivers need to be recompiled. 574 575 Note to kernel developers: Given that the OUI bit reversion problem 576 was fixed as part of these changes all mii(4) commits related to OUIs, 577 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 578 handling, no longer can be merged verbatim to stable/8 and previous 579 branches. 580 58120110430: 582 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 583 into their kernel configurations along with 'device pci'. 584 58520110427: 586 The default NFS client is now the new NFS client, so fstype "newnfs" 587 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 588 Although mounts via fstype "nfs" will usually work without userland 589 changes, it is recommended that the mount(8) and mount_nfs(8) 590 commands be rebuilt from sources and that a link to mount_nfs called 591 mount_oldnfs be created. The new client is compiled into the 592 kernel with "options NFSCL" and this is needed for diskless root 593 file systems. The GENERIC kernel configs have been changed to use 594 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 595 To use the regular/old client, you can "mount -t oldnfs ...". For 596 a diskless root file system, you must also include a line like: 597 598 vfs.root.mountfrom="oldnfs:" 599 600 in the boot/loader.conf on the root fs on the NFS server to make 601 a diskless root fs use the old client. 602 60320110424: 604 The GENERIC kernels for all architectures now default to the new 605 CAM-based ATA stack. It means that all legacy ATA drivers were 606 removed and replaced by respective CAM drivers. If you are using 607 ATA device names in /etc/fstab or other places, make sure to update 608 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 609 where 'Y's are the sequential numbers starting from zero for each type 610 in order of detection, unless configured otherwise with tunables, 611 see cam(4)). There will be symbolic links created in /dev/ to map 612 old adX devices to the respective adaY. They should provide basic 613 compatibility for file systems mounting in most cases, but they do 614 not support old user-level APIs and do not have respective providers 615 in GEOM. Consider using updated management tools with new device names. 616 617 It is possible to load devices ahci, ata, siis and mvs as modules, 618 but option ATA_CAM should remain in kernel configuration to make ata 619 module work as CAM driver supporting legacy ATA controllers. Device ata 620 still can be used in modular fashion (atacore + ...). Modules atadisk 621 and atapi* are not used and won't affect operation in ATA_CAM mode. 622 Note that to use CAM-based ATA kernel should include CAM devices 623 scbus, pass, da (or explicitly ada), cd and optionally others. All of 624 them are parts of the cam module. 625 626 ataraid(4) functionality is now supported by the RAID GEOM class. 627 To use it you can load geom_raid kernel module and use graid(8) tool 628 for management. Instead of /dev/arX device names, use /dev/raid/rX. 629 630 No kernel config options or code have been removed, so if a problem 631 arises, please report it and optionally revert to the old ATA stack. 632 In order to do it you can remove from the kernel config: 633 options ATA_CAM 634 device ahci 635 device mvs 636 device siis 637 , and instead add back: 638 device atadisk # ATA disk drives 639 device ataraid # ATA RAID drives 640 device atapicd # ATAPI CDROM drives 641 device atapifd # ATAPI floppy drives 642 device atapist # ATAPI tape drives 643 64420110423: 645 The default NFS server has been changed to the new server, which 646 was referred to as the experimental server. If you need to switch 647 back to the old NFS server, you must now put the "-o" option on 648 both the mountd and nfsd commands. This can be done using the 649 mountd_flags and nfs_server_flags rc.conf variables until an 650 update to the rc scripts is committed, which is coming soon. 651 65220110418: 653 The GNU Objective-C runtime library (libobjc), and other Objective-C 654 related components have been removed from the base system. If you 655 require an Objective-C library, please use one of the available ports. 656 65720110331: 658 ath(4) has been split into bus- and device- modules. if_ath contains 659 the HAL, the TX rate control and the network device code. if_ath_pci 660 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 661 contains the AHB glue. Users need to load both if_ath_pci and if_ath 662 in order to use ath on everything else. 663 664 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 665 need to load if_ath and if_ath_pci for ath(4) operation. 666 66720110314: 668 As part of the replacement of sysinstall, the process of building 669 release media has changed significantly. For details, please re-read 670 release(7), which has been updated to reflect the new build process. 671 67220110218: 673 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 674 is the last available version under GPLv2. It brings a number of new 675 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 676 4.1 and SSE 4.2), better support for powerpc64, a number of new 677 directives, and lots of other small improvements. See the ChangeLog 678 file in contrib/binutils for the full details. 679 68020110218: 681 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 682 compliant, and will now use half of hash for authentication. 683 This will break interoperability with all stacks (including all 684 actual FreeBSD versions) who implement 685 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 686 authentication). 687 The only workaround with such peers is to use another HMAC 688 algorithm for IPsec ("phase 2") authentication. 689 69020110207: 691 Remove the uio_yield prototype and symbol. This function has 692 been misnamed since it was introduced and should not be 693 globally exposed with this name. The equivalent functionality 694 is now available using kern_yield(curthread->td_user_pri). 695 The function remains undocumented. 696 69720110112: 698 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 699 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 700 for scalar sysctls is defined but disabled. Code that needs 701 UQUAD to pass the type checking that must compile on older 702 systems where the define is not present can check against 703 __FreeBSD_version >= 900030. 704 705 The system dialog(1) has been replaced with a new version previously 706 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 707 with the previous version, but the libdialog associated with it has 708 a largely incompatible API. As such, the original version of libdialog 709 will be kept temporarily as libodialog, until its base system consumers 710 are replaced or updated. Bump __FreeBSD_version to 900030. 711 71220110103: 713 If you are trying to run make universe on a -stable system, and you get 714 the following warning: 715 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 716 unknown. config(8) likely too old." 717 or something similar to it, then you must upgrade your -stable system 718 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 719 stable/8) or build the config from the latest stable/8 branch and 720 install it on your system. 721 722 Prior to this date, building a current universe on 8-stable system from 723 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 724 error in the first kernel build phase. A new config on those old 725 systems will fix that problem for older versions of -current. 726 72720101228: 728 The TCP stack has been modified to allow Khelp modules to interact with 729 it via helper hook points and store per-connection data in the TCP 730 control block. Bump __FreeBSD_version to 900029. User space tools that 731 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 732 be recompiled. 733 73420101114: 735 Generic IEEE 802.3 annex 31B full duplex flow control support has been 736 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 737 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 738 to take advantage of it instead of using custom implementations. This 739 means that these drivers now no longer unconditionally advertise 740 support for flow control but only do so if flow control is a selected 741 media option. This was implemented in the generic support that way in 742 order to allow flow control to be switched on and off via ifconfig(8) 743 with the PHY specific default to typically off in order to protect 744 from unwanted effects. Consequently, if you used flow control with 745 one of the above mentioned drivers you now need to explicitly enable 746 it, for example via: 747 ifconfig bge0 media auto mediaopt flowcontrol 748 749 Along with the above mentioned changes generic support for setting 750 1000baseT master mode also has been added and brgphy(4), ciphy(4), 751 e1000phy(4) as well as ip1000phy(4) have been converted to take 752 advantage of it. This means that these drivers now no longer take the 753 link0 parameter for selecting master mode but the master media option 754 has to be used instead, for example like in the following: 755 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 756 757 Selection of master mode now is also available with all other PHY 758 drivers supporting 1000baseT. 759 76020101111: 761 The TCP stack has received a significant update to add support for 762 modularised congestion control and generally improve the clarity of 763 congestion control decisions. Bump __FreeBSD_version to 900025. User 764 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 765 sockstat) need to be recompiled. 766 76720101002: 768 The man(1) utility has been replaced by a new version that no longer 769 uses /etc/manpath.config. Please consult man.conf(5) for how to 770 migrate local entries to the new format. 771 77220100928: 773 The copyright strings printed by login(1) and sshd(8) at the time of a 774 new connection have been removed to follow other operating systems and 775 upstream sshd. 776 77720100915: 778 A workaround for a fixed ld bug has been removed in kernel code, 779 so make sure that your system ld is built from sources after 780 revision 210245 from 2010-07-19 (r211583 if building head kernel 781 on stable/8, r211584 for stable/7; both from 2010-08-21). 782 A symptom of incorrect ld version is different addresses for 783 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 784 78520100913: 786 The $ipv6_prefer variable in rc.conf(5) has been split into 787 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 788 789 The $ip6addrctl_policy is a variable to choose a pre-defined 790 address selection policy set by ip6addrctl(8). A value 791 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 792 default is "AUTO". 793 794 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 795 flag (see an entry of 20090926) is set on an interface with no 796 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 797 security reason. If you want IPv6 link-local address on all 798 interfaces by default, set this to "YES". 799 800 The old ipv6_prefer="YES" is equivalent to 801 ipv6_activate_all_interfaces="YES" and 802 ip6addrctl_policy="ipv6_prefer". 803 80420100913: 805 DTrace has grown support for userland tracing. Due to this, DTrace is 806 now i386 and amd64 only. 807 dtruss(1) is now installed by default on those systems and a new 808 kernel module is needed for userland tracing: fasttrap. 809 No changes to your kernel config file are necessary to enable 810 userland tracing, but you might consider adding 'STRIP=' and 811 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 812 to have informative userland stack traces in DTrace (ustack). 813 81420100725: 815 The acpi_aiboost(4) driver has been removed in favor of the new 816 aibs(4) driver. You should update your kernel configuration file. 817 81820100722: 819 BSD grep has been imported to the base system and it is built by 820 default. It is completely BSD licensed, highly GNU-compatible, uses 821 less memory than its GNU counterpart and has a small codebase. 822 However, it is slower than its GNU counterpart, which is mostly 823 noticeable for larger searches, for smaller ones it is measurable 824 but not significant. The reason is complex, the most important factor 825 is that we lack a modern and efficient regex library and GNU 826 overcomes this by optimizing the searches internally. Future work 827 on improving the regex performance is planned, for the meantime, 828 users that need better performance, can build GNU grep instead by 829 setting the WITH_GNU_GREP knob. 830 83120100713: 832 Due to the import of powerpc64 support, all existing powerpc kernel 833 configuration files must be updated with a machine directive like this: 834 machine powerpc powerpc 835 836 In addition, an updated config(8) is required to build powerpc kernels 837 after this change. 838 83920100713: 840 A new version of ZFS (version 15) has been merged to -HEAD. 841 This version uses a python library for the following subcommands: 842 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 843 For full functionality of these commands the following port must 844 be installed: sysutils/py-zfs 845 84620100429: 847 'vm_page's are now hashed by physical address to an array of mutexes. 848 Currently this is only used to serialize access to hold_count. Over 849 time the page queue mutex will be peeled away. This changes the size 850 of pmap on every architecture. And requires all callers of vm_page_hold 851 and vm_page_unhold to be updated. 852 85320100402: 854 WITH_CTF can now be specified in src.conf (not recommended, there 855 are some problems with static executables), make.conf (would also 856 affect ports which do not use GNU make and do not override the 857 compile targets) or in the kernel config (via "makeoptions 858 WITH_CTF=yes"). 859 When WITH_CTF was specified there before this was silently ignored, 860 so make sure that WITH_CTF is not used in places which could lead 861 to unwanted behavior. 862 86320100311: 864 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 865 to allow 32-bit compatibility on non-x86 platforms. All kernel 866 configurations on amd64 and ia64 platforms using these options must 867 be modified accordingly. 868 86920100113: 870 The utmp user accounting database has been replaced with utmpx, 871 the user accounting interface standardized by POSIX. 872 Unfortunately the semantics of utmp and utmpx don't match, 873 making it practically impossible to support both interfaces. 874 The user accounting database is used by tools like finger(1), 875 last(1), talk(1), w(1) and ac(8). 876 877 All applications in the base system use utmpx. This means only 878 local binaries (e.g. from the ports tree) may still use these 879 utmp database files. These applications must be rebuilt to make 880 use of utmpx. 881 882 After the system has been upgraded, it is safe to remove the old 883 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 884 assuming their contents is of no importance anymore. Old wtmp 885 databases can only be used by last(1) and ac(8) after they have 886 been converted to the new format using wtmpcvt(1). 887 88820100108: 889 Introduce the kernel thread "deadlock resolver" (which can be enabled 890 via the DEADLKRES option, see NOTES for more details) and the 891 sleepq_type() function for sleepqueues. 892 89320091202: 894 The rc.firewall and rc.firewall6 were unified, and 895 rc.firewall6 and rc.d/ip6fw were removed. 896 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 897 variables are obsoleted. Instead, the following new rc 898 variables are added to rc.d/ipfw: 899 900 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 901 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 902 firewall_simple_onet_ipv6, firewall_trusted_ipv6 903 904 The meanings correspond to the relevant IPv4 variables. 905 90620091125: 907 8.0-RELEASE. 908 90920091113: 910 The default terminal emulation for syscons(4) has been changed 911 from cons25 to xterm on all platforms except pc98. This means 912 that the /etc/ttys file needs to be updated to ensure correct 913 operation of applications on the console. 914 915 The terminal emulation style can be toggled per window by using 916 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 917 options can be used to change the compile-time default back to 918 cons25. 919 920 To prevent graphical artifacts, make sure the TERM environment 921 variable is set to match the terminal emulation that is being 922 performed by syscons(4). 923 92420091109: 925 The layout of the structure ieee80211req_scan_result has changed. 926 Applications that require wireless scan results (e.g. ifconfig(8)) 927 from net80211 need to be recompiled. 928 929 Applications such as wpa_supplicant(8) may require a full world 930 build without using NO_CLEAN in order to get synchronized with the 931 new structure. 932 93320091025: 934 The iwn(4) driver has been updated to support the 5000 and 5150 series. 935 There's one kernel module for each firmware. Adding "device iwnfw" 936 to the kernel configuration file means including all three firmware 937 images inside the kernel. If you want to include just the one for 938 your wireless card, use the devices iwn4965fw, iwn5000fw or 939 iwn5150fw. 940 94120090926: 942 The rc.d/network_ipv6, IPv6 configuration script has been integrated 943 into rc.d/netif. The changes are the following: 944 945 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 946 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 947 Note that both variables need the "inet6" keyword at the head. 948 949 Do not set $ipv6_network_interfaces manually if you do not 950 understand what you are doing. It is not needed in most cases. 951 952 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 953 they are obsolete. 954 955 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 956 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 957 958 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 959 all configured interfaces have "inet6 accept_rtadv" in the 960 $ifconfig_IF_ipv6. These are for backward compatibility. 961 962 3. A new variable $ipv6_prefer has been added. If NO, IPv6 963 functionality of interfaces with no corresponding 964 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 965 and the default address selection policy of ip6addrctl(8) 966 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 967 Note that if you want to configure IPv6 functionality on the 968 disabled interfaces after boot, first you need to clear the flag by 969 using ifconfig(8) like: 970 971 ifconfig em0 inet6 -ifdisabled 972 973 If YES, the default address selection policy is set as 974 IPv6-preferred. 975 976 The default value of $ipv6_prefer is NO. 977 978 4. If your system need to receive Router Advertisement messages, 979 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 980 scripts automatically invoke rtsol(8) when the interface becomes 981 UP. The Router Advertisement messages are used for SLAAC 982 (State-Less Address AutoConfiguration). 983 98420090922: 985 802.11s D3.03 support was committed. This is incompatible with the 986 previous code, which was based on D3.0. 987 98820090912: 989 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 990 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 991 control whether accepting Router Advertisement messages or not. 992 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 993 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 994 The ifconfig(8) utility now supports these flags. 995 99620090910: 997 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 998 mount(8) and -a option for df(1) to see them. 999 100020090825: 1001 The old tunable hw.bus.devctl_disable has been superseded by 1002 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1003 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1004 is 1000. 1005 100620090813: 1007 Remove the option STOP_NMI. The default action is now to use NMI only 1008 for KDB via the newly introduced function stop_cpus_hard() and 1009 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1010 101120090803: 1012 The stable/8 branch created in subversion. This corresponds to the 1013 RELENG_8 branch in CVS. 1014 101520090719: 1016 Bump the shared library version numbers for all libraries that do not 1017 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1018 __FreeBSD_version to 800105. 1019 102020090714: 1021 Due to changes in the implementation of virtual network stack support, 1022 all network-related kernel modules must be recompiled. As this change 1023 breaks the ABI, bump __FreeBSD_version to 800104. 1024 102520090713: 1026 The TOE interface to the TCP syncache has been modified to remove 1027 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1028 The cxgb driver is the only TOE consumer affected by this change, and 1029 needs to be recompiled along with the kernel. As this change breaks 1030 the ABI, bump __FreeBSD_version to 800103. 1031 103220090712: 1033 Padding has been added to struct tcpcb, sackhint and tcpstat in 1034 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1035 maintaining the ABI. However, this change breaks the ABI, so bump 1036 __FreeBSD_version to 800102. User space tools that rely on the size of 1037 any of these structs (e.g. sockstat) need to be recompiled. 1038 103920090630: 1040 The NFS_LEGACYRPC option has been removed along with the old kernel 1041 RPC implementation that this option selected. Kernel configurations 1042 may need to be adjusted. 1043 104420090629: 1045 The network interface device nodes at /dev/net/<interface> have been 1046 removed. All ioctl operations can be performed the normal way using 1047 routing sockets. The kqueue functionality can generally be replaced 1048 with routing sockets. 1049 105020090628: 1051 The documentation from the FreeBSD Documentation Project (Handbook, 1052 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1053 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1054 105520090624: 1056 The ABI of various structures related to the SYSV IPC API have been 1057 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1058 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1059 800100. 1060 106120090622: 1062 Layout of struct vnet has changed as routing related variables were 1063 moved to their own Vimage module. Modules need to be recompiled. Bump 1064 __FreeBSD_version to 800099. 1065 106620090619: 1067 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1068 respectively. As long as no more than 16 groups per process are used, 1069 no changes should be visible. When more than 16 groups are used, old 1070 binaries may fail if they call getgroups() or getgrouplist() with 1071 statically sized storage. Recompiling will work around this, but 1072 applications should be modified to use dynamically allocated storage 1073 for group arrays as POSIX.1-2008 does not cap an implementation's 1074 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1075 1076 NFS and portalfs mounts may also be affected as the list of groups is 1077 truncated to 16. Users of NFS who use more than 16 groups, should 1078 take care that negative group permissions are not used on the exported 1079 file systems as they will not be reliable unless a GSSAPI based 1080 authentication method is used. 1081 108220090616: 1083 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1084 option compiles in the support for adaptive spinning for lockmgrs 1085 which want to enable it. The lockinit() function now accepts the flag 1086 LK_ADAPTIVE in order to make the lock object subject to adaptive 1087 spinning when both held in write and read mode. 1088 108920090613: 1090 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1091 changed. User applications that use this ioctl need to be rebuilt. 1092 109320090611: 1094 The layout of struct thread has changed. Kernel and modules need to 1095 be rebuilt. 1096 109720090608: 1098 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1099 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1100 110120090602: 1102 window(1) has been removed from the base system. It can now be 1103 installed from ports. The port is called misc/window. 1104 110520090601: 1106 The way we are storing and accessing `routing table' entries has 1107 changed. Programs reading the FIB, like netstat, need to be 1108 re-compiled. 1109 111020090601: 1111 A new netisr implementation has been added for FreeBSD 8. Network 1112 file system modules, such as igmp, ipdivert, and others, should be 1113 rebuilt. 1114 Bump __FreeBSD_version to 800096. 1115 111620090530: 1117 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1118 more valid. 1119 112020090530: 1121 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1122 Bump __FreeBSD_version to 800094. 1123 112420090529: 1125 Add mnt_xflag field to 'struct mount'. File system modules need to be 1126 rebuilt. 1127 Bump __FreeBSD_version to 800093. 1128 112920090528: 1130 The compiling option ADAPTIVE_SX has been retired while it has been 1131 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1132 The KPI for sx_init_flags() changes as accepting flags: 1133 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1134 been introduced in order to handle the reversed logic. 1135 Bump __FreeBSD_version to 800092. 1136 113720090527: 1138 Add support for hierarchical jails. Remove global securelevel. 1139 Bump __FreeBSD_version to 800091. 1140 114120090523: 1142 The layout of struct vnet_net has changed, therefore modules 1143 need to be rebuilt. 1144 Bump __FreeBSD_version to 800090. 1145 114620090523: 1147 The newly imported zic(8) produces a new format in the output. Please 1148 run tzsetup(8) to install the newly created data to /etc/localtime. 1149 115020090520: 1151 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1152 hw.usb.* and is now consistent again with previous releases. 1153 115420090520: 1155 802.11 monitor mode support was revised and driver api's were changed. 1156 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1157 of DLT_IEEE802_11. No user-visible data structures were changed but 1158 applications that use DLT_IEEE802_11 may require changes. 1159 Bump __FreeBSD_version to 800088. 1160 116120090430: 1162 The layout of the following structs has changed: sysctl_oid, 1163 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1164 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1165 panics may be experienced. World rebuild is required for 1166 correctly checking networking state from userland. 1167 Bump __FreeBSD_version to 800085. 1168 116920090429: 1170 MLDv2 and Source-Specific Multicast (SSM) have been merged 1171 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1172 The implementation of SSM within FreeBSD's IPv6 stack closely 1173 follows the IPv4 implementation. 1174 1175 For kernel developers: 1176 1177 * The most important changes are that the ip6_output() and 1178 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1179 and this lock has been downgraded to a non-recursive mutex. 1180 1181 * As with the changes to the IPv4 stack to support SSM, filtering 1182 of inbound multicast traffic must now be performed by transport 1183 protocols within the IPv6 stack. This does not apply to TCP and 1184 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1185 1186 * The KPIs used by IPv6 multicast are similar to those used by 1187 the IPv4 stack, with the following differences: 1188 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1189 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1190 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1191 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1192 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1193 for MLDv1 have an additional 'timer' argument which is used to 1194 jitter the initial membership report for the solicited-node 1195 multicast membership on-link. 1196 * This is not strictly needed for MLDv2, which already jitters 1197 its report transmissions. However, the 'timer' argument is 1198 preserved in case MLDv1 is active on the interface. 1199 1200 * The KAME linked-list based IPv6 membership implementation has 1201 been refactored to use a vector similar to that used by the IPv4 1202 stack. 1203 Code which maintains a list of its own multicast memberships 1204 internally, e.g. carp, has been updated to reflect the new 1205 semantics. 1206 1207 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1208 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1209 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1210 implementation constraint which needs to be addressed in HEAD. 1211 1212 For application developers: 1213 1214 * The changes are broadly similar to those made for the IPv4 1215 stack. 1216 1217 * The use of IPv4 and IPv6 multicast socket options on the same 1218 socket, using mapped addresses, HAS NOT been tested or supported. 1219 1220 * There are a number of issues with the implementation of various 1221 IPv6 multicast APIs which need to be resolved in the API surface 1222 before the implementation is fully compatible with KAME userland 1223 use, and these are mostly to do with interface index treatment. 1224 1225 * The literature available discusses the use of either the delta / ASM 1226 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1227 using setsourcefilter(3)/getsourcefilter(3). For more information 1228 please refer to RFC 3768, 'Socket Interface Extensions for 1229 Multicast Source Filters'. 1230 1231 * Applications which use the published RFC 3678 APIs should be fine. 1232 1233 For systems administrators: 1234 1235 * The mtest(8) utility has been refactored to support IPv6, in 1236 addition to IPv4. Interface addresses are no longer accepted 1237 as arguments, their names must be used instead. The utility 1238 will map the interface name to its first IPv4 address as 1239 returned by getifaddrs(3). 1240 1241 * The ifmcstat(8) utility has also been updated to print the MLDv2 1242 endpoint state and source filter lists via sysctl(3). 1243 1244 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1245 loopback of IPv6 multicast datagrams by default; it defaults to 1 1246 to preserve the existing behaviour. Disabling multicast loopback is 1247 recommended for optimal system performance. 1248 1249 * The IPv6 MROUTING code has been changed to examine this sysctl 1250 instead of attempting to perform a group lookup before looping 1251 back forwarded datagrams. 1252 1253 Bump __FreeBSD_version to 800084. 1254 125520090422: 1256 Implement low-level Bluetooth HCI API. 1257 Bump __FreeBSD_version to 800083. 1258 125920090419: 1260 The layout of struct malloc_type, used by modules to register new 1261 memory allocation types, has changed. Most modules will need to 1262 be rebuilt or panics may be experienced. 1263 Bump __FreeBSD_version to 800081. 1264 126520090415: 1266 Anticipate overflowing inp_flags - add inp_flags2. 1267 This changes most offsets in inpcb, so checking v4 connection 1268 state will require a world rebuild. 1269 Bump __FreeBSD_version to 800080. 1270 127120090415: 1272 Add an llentry to struct route and struct route_in6. Modules 1273 embedding a struct route will need to be recompiled. 1274 Bump __FreeBSD_version to 800079. 1275 127620090414: 1277 The size of rt_metrics_lite and by extension rtentry has changed. 1278 Networking administration apps will need to be recompiled. 1279 The route command now supports show as an alias for get, weighting 1280 of routes, sticky and nostick flags to alter the behavior of stateful 1281 load balancing. 1282 Bump __FreeBSD_version to 800078. 1283 128420090408: 1285 Do not use Giant for kbdmux(4) locking. This is wrong and 1286 apparently causing more problems than it solves. This will 1287 re-open the issue where interrupt handlers may race with 1288 kbdmux(4) in polling mode. Typical symptoms include (but 1289 not limited to) duplicated and/or missing characters when 1290 low level console functions (such as gets) are used while 1291 interrupts are enabled (for example geli password prompt, 1292 mountroot prompt etc.). Disabling kbdmux(4) may help. 1293 129420090407: 1295 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1296 kernel modules referencing any of the above need to be recompiled. 1297 Bump __FreeBSD_version to 800075. 1298 129920090320: 1300 GEOM_PART has become the default partition slicer for storage devices, 1301 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1302 introduces some changes: 1303 1304 MSDOS/EBR: the devices created from MSDOS extended partition entries 1305 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1306 to devices with offset-based names. fstabs may need to be modified. 1307 1308 BSD: the "geometry does not match label" warning is harmless in most 1309 cases but it points to problems in file system misalignment with 1310 disk geometry. The "c" partition is now implicit, covers the whole 1311 top-level drive and cannot be (mis)used by users. 1312 1313 General: Kernel dumps are now not allowed to be written to devices 1314 whose partition types indicate they are meant to be used for file 1315 systems (or, in case of MSDOS partitions, as something else than 1316 the "386BSD" type). 1317 1318 Most of these changes date approximately from 200812. 1319 132020090319: 1321 The uscanner(4) driver has been removed from the kernel. This follows 1322 Linux removing theirs in 2.6 and making libusb the default interface 1323 (supported by sane). 1324 132520090319: 1326 The multicast forwarding code has been cleaned up. netstat(1) 1327 only relies on KVM now for printing bandwidth upcall meters. 1328 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1329 ip6_mroute_mod respectively. The config(5) options for statically 1330 compiling this code remain the same, i.e. 'options MROUTING'. 1331 133220090315: 1333 Support for the IFF_NEEDSGIANT network interface flag has been 1334 removed, which means that non-MPSAFE network device drivers are no 1335 longer supported. In particular, if_ar, if_sr, and network device 1336 drivers from the old (legacy) USB stack can no longer be built or 1337 used. 1338 133920090313: 1340 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1341 a bunch of new language catalog files have also been added. 1342 This means that some common libc messages are now localized and 1343 they depend on the LC_MESSAGES environmental variable. 1344 134520090313: 1346 The k8temp(4) driver has been renamed to amdtemp(4) since 1347 support for Family 10 and Family 11 CPU families was added. 1348 134920090309: 1350 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1351 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1352 1353 For kernel developers, the most important changes are that the 1354 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1355 and this lock has been downgraded to a non-recursive mutex. 1356 1357 Transport protocols (UDP, Raw IP) are now responsible for filtering 1358 inbound multicast traffic according to group membership and source 1359 filters. The imo_multicast_filter() KPI exists for this purpose. 1360 Transports which do not use multicast (SCTP, TCP) already reject 1361 multicast by default. Forwarding and receive performance may improve 1362 as a mutex acquisition is no longer needed in the ip_input() 1363 low-level input path. in_addmulti() and in_delmulti() are shimmed 1364 to new KPIs which exist to support SSM in-kernel. 1365 1366 For application developers, it is recommended that loopback of 1367 multicast datagrams be disabled for best performance, as this 1368 will still cause the lock to be taken for each looped-back 1369 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1370 be tuned to 0 to disable loopback by default; it defaults to 1 1371 to preserve the existing behaviour. 1372 1373 For systems administrators, to obtain best performance with 1374 multicast reception and multiple groups, it is always recommended 1375 that a card with a suitably precise hash filter is used. Hash 1376 collisions will still result in the lock being taken within the 1377 transport protocol input path to check group membership. 1378 1379 If deploying FreeBSD in an environment with IGMP snooping switches, 1380 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1381 enabled; this forces 224.0.0.0/24 group membership to be announced 1382 via IGMP. 1383 1384 The size of 'struct igmpstat' has changed; netstat needs to be 1385 recompiled to reflect this. 1386 Bump __FreeBSD_version to 800070. 1387 138820090309: 1389 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1390 updated to use it. This requires a buildworld/installworld in order to 1391 update the library and dependencies (usbconfig, etc). Its advisable to 1392 rebuild all ports which uses libusb. More specific directions are given 1393 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1394 libusb are no longer required and can be removed. 1395 139620090302: 1397 A workaround is committed to allow the creation of System V shared 1398 memory segment of size > 2 GB on the 64-bit architectures. 1399 Due to a limitation of the existing ABI, the shm_segsz member 1400 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1401 wrong for large segments. Note that limits must be explicitly 1402 raised to allow such segments to be created. 1403 140420090301: 1405 The layout of struct ifnet has changed, requiring a rebuild of all 1406 network device driver modules. 1407 140820090227: 1409 The /dev handling for the new USB stack has changed, a 1410 buildworld/installworld is required for libusb20. 1411 141220090223: 1413 The new USB2 stack has now been permanently moved in and all kernel and 1414 module names reverted to their previous values (eg, usb, ehci, ohci, 1415 ums, ...). The old usb stack can be compiled in by prefixing the name 1416 with the letter 'o', the old usb modules have been removed. 1417 Updating entry 20090216 for xorg and 20090215 for libmap may still 1418 apply. 1419 142020090217: 1421 The rc.conf(5) option if_up_delay has been renamed to 1422 defaultroute_delay to better reflect its purpose. If you have 1423 customized this setting in /etc/rc.conf you need to update it to 1424 use the new name. 1425 142620090216: 1427 xorg 7.4 wants to configure its input devices via hald which does not 1428 yet work with USB2. If the keyboard/mouse does not work in xorg then 1429 add 1430 Option "AllowEmptyInput" "off" 1431 to your ServerLayout section. This will cause X to use the configured 1432 kbd and mouse sections from your xorg.conf. 1433 143420090215: 1435 The GENERIC kernels for all architectures now default to the new USB2 1436 stack. No kernel config options or code have been removed so if a 1437 problem arises please report it and optionally revert to the old USB 1438 stack. If you are loading USB kernel modules or have a custom kernel 1439 that includes GENERIC then ensure that usb names are also changed over, 1440 eg uftdi -> usb2_serial_ftdi. 1441 1442 Older programs linked against the ports libusb 0.1 need to be 1443 redirected to the new stack's libusb20. /etc/libmap.conf can 1444 be used for this: 1445 # Map old usb library to new one for usb2 stack 1446 libusb-0.1.so.8 libusb20.so.1 1447 144820090209: 1449 All USB ethernet devices now attach as interfaces under the name ueN 1450 (eg. ue0). This is to provide a predictable name as vendors often 1451 change usb chipsets in a product without notice. 1452 145320090203: 1454 The ichsmb(4) driver has been changed to require SMBus slave 1455 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1456 All of the other SMBus controller drivers require left-justified 1457 slave addresses, so this change makes all the drivers provide the 1458 same interface. 1459 146020090201: 1461 INET6 statistics (struct ip6stat) was updated. 1462 netstat(1) needs to be recompiled. 1463 146420090119: 1465 NTFS has been removed from GENERIC kernel on amd64 to match 1466 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1467 will load ntfs.ko module automatically when NTFS support is 1468 actually needed, unless ntfs.ko is not installed or security 1469 level prohibits loading kernel modules. If either is the case, 1470 "options NTFS" has to be added into kernel config. 1471 147220090115: 1473 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1474 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1475 800061. User space tools that rely on the size of struct tcpcb in 1476 tcp_var.h (e.g. sockstat) need to be recompiled. 1477 147820081225: 1479 ng_tty(4) module updated to match the new TTY subsystem. 1480 Due to API change, user-level applications must be updated. 1481 New API support added to mpd5 CVS and expected to be present 1482 in next mpd5.3 release. 1483 148420081219: 1485 With __FreeBSD_version 800060 the makefs tool is part of 1486 the base system (it was a port). 1487 148820081216: 1489 The afdata and ifnet locks have been changed from mutexes to 1490 rwlocks, network modules will need to be re-compiled. 1491 149220081214: 1493 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1494 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1495 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1496 architecture and 40 bytes on 64-bit architecture. The userland 1497 applications "arp" and "ndp" have been updated accordingly. 1498 The output from "netstat -r" shows only routing entries and 1499 none of the L2 information. 1500 150120081130: 1502 __FreeBSD_version 800057 marks the switchover from the 1503 binary ath hal to source code. Users must add the line: 1504 1505 options AH_SUPPORT_AR5416 1506 1507 to their kernel config files when specifying: 1508 1509 device ath_hal 1510 1511 The ath_hal module no longer exists; the code is now compiled 1512 together with the driver in the ath module. It is now 1513 possible to tailor chip support (i.e. reduce the set of chips 1514 and thereby the code size); consult ath_hal(4) for details. 1515 151620081121: 1517 __FreeBSD_version 800054 adds memory barriers to 1518 <machine/atomic.h>, new interfaces to ifnet to facilitate 1519 multiple hardware transmit queues for cards that support 1520 them, and a lock-less ring-buffer implementation to 1521 enable drivers to more efficiently manage queueing of 1522 packets. 1523 152420081117: 1525 A new version of ZFS (version 13) has been merged to -HEAD. 1526 This version has zpool attribute "listsnapshots" off by 1527 default, which means "zfs list" does not show snapshots, 1528 and is the same as Solaris behavior. 1529 153020081028: 1531 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1532 153320081009: 1534 The uhci, ohci, ehci and slhci USB Host controller drivers have 1535 been put into separate modules. If you load the usb module 1536 separately through loader.conf you will need to load the 1537 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1538 controller add the following to loader.conf: 1539 1540 uhci_load="YES" 1541 ehci_load="YES" 1542 154320081009: 1544 The ABI used by the PMC toolset has changed. Please keep 1545 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1546 sync. 1547 154820081009: 1549 atapci kernel module now includes only generic PCI ATA 1550 driver. AHCI driver moved to ataahci kernel module. 1551 All vendor-specific code moved into separate kernel modules: 1552 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1553 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1554 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1555 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1556 155720080820: 1558 The TTY subsystem of the kernel has been replaced by a new 1559 implementation, which provides better scalability and an 1560 improved driver model. Most common drivers have been migrated to 1561 the new TTY subsystem, while others have not. The following 1562 drivers have not yet been ported to the new TTY layer: 1563 1564 PCI/ISA: 1565 cy, digi, rc, rp, sio 1566 1567 USB: 1568 ubser, ucycom 1569 1570 Line disciplines: 1571 ng_h4, ng_tty, ppp, sl, snp 1572 1573 Adding these drivers to your kernel configuration file shall 1574 cause compilation to fail. 1575 157620080818: 1577 ntpd has been upgraded to 4.2.4p5. 1578 157920080801: 1580 OpenSSH has been upgraded to 5.1p1. 1581 1582 For many years, FreeBSD's version of OpenSSH preferred DSA 1583 over RSA for host and user authentication keys. With this 1584 upgrade, we've switched to the vendor's default of RSA over 1585 DSA. This may cause upgraded clients to warn about unknown 1586 host keys even for previously known hosts. Users should 1587 follow the usual procedure for verifying host keys before 1588 accepting the RSA key. 1589 1590 This can be circumvented by setting the "HostKeyAlgorithms" 1591 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1592 command line. 1593 1594 Please note that the sequence of keys offered for 1595 authentication has been changed as well. You may want to 1596 specify IdentityFile in a different order to revert this 1597 behavior. 1598 159920080713: 1600 The sio(4) driver has been removed from the i386 and amd64 1601 kernel configuration files. This means uart(4) is now the 1602 default serial port driver on those platforms as well. 1603 1604 To prevent collisions with the sio(4) driver, the uart(4) driver 1605 uses different names for its device nodes. This means the 1606 onboard serial port will now most likely be called "ttyu0" 1607 instead of "ttyd0". You may need to reconfigure applications to 1608 use the new device names. 1609 1610 When using the serial port as a boot console, be sure to update 1611 /boot/device.hints and /etc/ttys before booting the new kernel. 1612 If you forget to do so, you can still manually specify the hints 1613 at the loader prompt: 1614 1615 set hint.uart.0.at="isa" 1616 set hint.uart.0.port="0x3F8" 1617 set hint.uart.0.flags="0x10" 1618 set hint.uart.0.irq="4" 1619 boot -s 1620 162120080609: 1622 The gpt(8) utility has been removed. Use gpart(8) to partition 1623 disks instead. 1624 162520080603: 1626 The version that Linuxulator emulates was changed from 2.4.2 1627 to 2.6.16. If you experience any problems with Linux binaries 1628 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1629 if it fixes the problem contact emulation mailing list. 1630 163120080525: 1632 ISDN4BSD (I4B) was removed from the src tree. You may need to 1633 update a your kernel configuration and remove relevant entries. 1634 163520080509: 1636 I have checked in code to support multiple routing tables. 1637 See the man pages setfib(1) and setfib(2). 1638 This is a hopefully backwards compatible version, 1639 but to make use of it you need to compile your kernel 1640 with options ROUTETABLES=2 (or more up to 16). 1641 164220080420: 1643 The 802.11 wireless support was redone to enable multi-bss 1644 operation on devices that are capable. The underlying device 1645 is no longer used directly but instead wlanX devices are 1646 cloned with ifconfig. This requires changes to rc.conf files. 1647 For example, change: 1648 ifconfig_ath0="WPA DHCP" 1649 to 1650 wlans_ath0=wlan0 1651 ifconfig_wlan0="WPA DHCP" 1652 see rc.conf(5) for more details. In addition, mergemaster of 1653 /etc/rc.d is highly recommended. Simultaneous update of userland 1654 and kernel wouldn't hurt either. 1655 1656 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1657 modules were merged into the base wlan module. All references 1658 to these modules (e.g. in kernel config files) must be removed. 1659 166020080408: 1661 psm(4) has gained write(2) support in native operation level. 1662 Arbitrary commands can be written to /dev/psm%d and status can 1663 be read back from it. Therefore, an application is responsible 1664 for status validation and error recovery. It is a no-op in 1665 other operation levels. 1666 166720080312: 1668 Support for KSE threading has been removed from the kernel. To 1669 run legacy applications linked against KSE libmap.conf may 1670 be used. The following libmap.conf may be used to ensure 1671 compatibility with any prior release: 1672 1673 libpthread.so.1 libthr.so.1 1674 libpthread.so.2 libthr.so.2 1675 libkse.so.3 libthr.so.3 1676 167720080301: 1678 The layout of struct vmspace has changed. This affects libkvm 1679 and any executables that link against libkvm and use the 1680 kvm_getprocs() function. In particular, but not exclusively, 1681 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1682 The effects are minimal, but it's advisable to upgrade world 1683 nonetheless. 1684 168520080229: 1686 The latest em driver no longer has support in it for the 1687 82575 adapter, this is now moved to the igb driver. The 1688 split was done to make new features that are incompatible 1689 with older hardware easier to do. 1690 169120080220: 1692 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1693 likewise the kernel option is now GEOM_LINUX_LVM. 1694 169520080211: 1696 The default NFS mount mode has changed from UDP to TCP for 1697 increased reliability. If you rely on (insecurely) NFS 1698 mounting across a firewall you may need to update your 1699 firewall rules. 1700 170120080208: 1702 Belatedly note the addition of m_collapse for compacting 1703 mbuf chains. 1704 170520080126: 1706 The fts(3) structures have been changed to use adequate 1707 integer types for their members and so to be able to cope 1708 with huge file trees. The old fts(3) ABI is preserved 1709 through symbol versioning in libc, so third-party binaries 1710 using fts(3) should still work, although they will not take 1711 advantage of the extended types. At the same time, some 1712 third-party software might fail to build after this change 1713 due to unportable assumptions made in its source code about 1714 fts(3) structure members. Such software should be fixed 1715 by its vendor or, in the worst case, in the ports tree. 1716 FreeBSD_version 800015 marks this change for the unlikely 1717 case that a portable fix is impossible. 1718 171920080123: 1720 To upgrade to -current after this date, you must be running 1721 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1722 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1723 172420071128: 1725 The ADAPTIVE_GIANT kernel option has been retired because its 1726 functionality is the default now. 1727 172820071118: 1729 The AT keyboard emulation of sunkbd(4) has been turned on 1730 by default. In order to make the special symbols of the Sun 1731 keyboards driven by sunkbd(4) work under X these now have 1732 to be configured the same way as Sun USB keyboards driven 1733 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1734 1735 Option "XkbLayout" "us" 1736 Option "XkbRules" "xorg" 1737 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1738 173920071024: 1740 It has been decided that it is desirable to provide ABI 1741 backwards compatibility to the FreeBSD 4/5/6 versions of the 1742 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1743 broken with the introduction of PCI domain support (see the 1744 20070930 entry). Unfortunately, this required the ABI of 1745 PCIOCGETCONF to be broken again in order to be able to 1746 provide backwards compatibility to the old version of that 1747 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1748 again. As for prominent ports this affects neither pciutils 1749 nor xorg-server this time, the hal port needs to be rebuilt 1750 however. 1751 175220071020: 1753 The misnamed kthread_create() and friends have been renamed 1754 to kproc_create() etc. Many of the callers already 1755 used kproc_start().. 1756 I will return kthread_create() and friends in a while 1757 with implementations that actually create threads, not procs. 1758 Renaming corresponds with version 800002. 1759 176020071010: 1761 RELENG_7 branched. 1762 1763COMMON ITEMS: 1764 1765 General Notes 1766 ------------- 1767 Avoid using make -j when upgrading. While generally safe, there are 1768 sometimes problems using -j to upgrade. If your upgrade fails with 1769 -j, please try again without -j. From time to time in the past there 1770 have been problems using -j with buildworld and/or installworld. This 1771 is especially true when upgrading between "distant" versions (eg one 1772 that cross a major release boundary or several minor releases, or when 1773 several months have passed on the -current branch). 1774 1775 Sometimes, obscure build problems are the result of environment 1776 poisoning. This can happen because the make utility reads its 1777 environment when searching for values for global variables. To run 1778 your build attempts in an "environmental clean room", prefix all make 1779 commands with 'env -i '. See the env(1) manual page for more details. 1780 1781 When upgrading from one major version to another it is generally best 1782 to upgrade to the latest code in the currently installed branch first, 1783 then do an upgrade to the new branch. This is the best-tested upgrade 1784 path, and has the highest probability of being successful. Please try 1785 this approach before reporting problems with a major version upgrade. 1786 1787 ZFS notes 1788 --------- 1789 When upgrading the boot ZFS pool to a new version, always follow 1790 these two steps: 1791 1792 1.) recompile and reinstall the ZFS boot loader and boot block 1793 (this is part of "make buildworld" and "make installworld") 1794 1795 2.) update the ZFS boot block on your boot drive 1796 1797 The following example updates the ZFS boot block on the first 1798 partition (freebsd-boot) of a GPT partitioned drive ad0: 1799 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1800 1801 Non-boot pools do not need these updates. 1802 1803 To build a kernel 1804 ----------------- 1805 If you are updating from a prior version of FreeBSD (even one just 1806 a few days old), you should follow this procedure. It is the most 1807 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1808 1809 make kernel-toolchain 1810 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1811 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1812 1813 To test a kernel once 1814 --------------------- 1815 If you just want to boot a kernel once (because you are not sure 1816 if it works, or if you want to boot a known bad kernel to provide 1817 debugging information) run 1818 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1819 nextboot -k testkernel 1820 1821 To just build a kernel when you know that it won't mess you up 1822 -------------------------------------------------------------- 1823 This assumes you are already running a CURRENT system. Replace 1824 ${arch} with the architecture of your machine (e.g. "i386", 1825 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1826 1827 cd src/sys/${arch}/conf 1828 config KERNEL_NAME_HERE 1829 cd ../compile/KERNEL_NAME_HERE 1830 make depend 1831 make 1832 make install 1833 1834 If this fails, go to the "To build a kernel" section. 1835 1836 To rebuild everything and install it on the current system. 1837 ----------------------------------------------------------- 1838 # Note: sometimes if you are running current you gotta do more than 1839 # is listed here if you are upgrading from a really old current. 1840 1841 <make sure you have good level 0 dumps> 1842 make buildworld 1843 make kernel KERNCONF=YOUR_KERNEL_HERE 1844 [1] 1845 <reboot in single user> [3] 1846 mergemaster -p [5] 1847 make installworld 1848 mergemaster -i [4] 1849 make delete-old [6] 1850 <reboot> 1851 1852 1853 To cross-install current onto a separate partition 1854 -------------------------------------------------- 1855 # In this approach we use a separate partition to hold 1856 # current's root, 'usr', and 'var' directories. A partition 1857 # holding "/", "/usr" and "/var" should be about 2GB in 1858 # size. 1859 1860 <make sure you have good level 0 dumps> 1861 <boot into -stable> 1862 make buildworld 1863 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1864 <maybe newfs current's root partition> 1865 <mount current's root partition on directory ${CURRENT_ROOT}> 1866 make installworld DESTDIR=${CURRENT_ROOT} 1867 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1868 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1869 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1870 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1871 <reboot into current> 1872 <do a "native" rebuild/install as described in the previous section> 1873 <maybe install compatibility libraries from ports/misc/compat*> 1874 <reboot> 1875 1876 1877 To upgrade in-place from stable to current 1878 ---------------------------------------------- 1879 <make sure you have good level 0 dumps> 1880 make buildworld [9] 1881 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1882 [1] 1883 <reboot in single user> [3] 1884 mergemaster -p [5] 1885 make installworld 1886 mergemaster -i [4] 1887 make delete-old [6] 1888 <reboot> 1889 1890 Make sure that you've read the UPDATING file to understand the 1891 tweaks to various things you need. At this point in the life 1892 cycle of current, things change often and you are on your own 1893 to cope. The defaults can also change, so please read ALL of 1894 the UPDATING entries. 1895 1896 Also, if you are tracking -current, you must be subscribed to 1897 freebsd-current@freebsd.org. Make sure that before you update 1898 your sources that you have read and understood all the recent 1899 messages there. If in doubt, please track -stable which has 1900 much fewer pitfalls. 1901 1902 [1] If you have third party modules, such as vmware, you 1903 should disable them at this point so they don't crash your 1904 system on reboot. 1905 1906 [3] From the bootblocks, boot -s, and then do 1907 fsck -p 1908 mount -u / 1909 mount -a 1910 cd src 1911 adjkerntz -i # if CMOS is wall time 1912 Also, when doing a major release upgrade, it is required that 1913 you boot into single user mode to do the installworld. 1914 1915 [4] Note: This step is non-optional. Failure to do this step 1916 can result in a significant reduction in the functionality of the 1917 system. Attempting to do it by hand is not recommended and those 1918 that pursue this avenue should read this file carefully, as well 1919 as the archives of freebsd-current and freebsd-hackers mailing lists 1920 for potential gotchas. The -U option is also useful to consider. 1921 See mergemaster(8) for more information. 1922 1923 [5] Usually this step is a noop. However, from time to time 1924 you may need to do this if you get unknown user in the following 1925 step. It never hurts to do it all the time. You may need to 1926 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1927 install) after the buildworld before this step if you last updated 1928 from [78]-stable or 9-stable before 20130430. 1929 1930 [6] This only deletes old files and directories. Old libraries 1931 can be deleted by "make delete-old-libs", but you have to make 1932 sure that no program is using those libraries anymore. 1933 1934 [8] In order to have a kernel that can run the 4.x binaries needed to 1935 do an installworld, you must include the COMPAT_FREEBSD4 option in 1936 your kernel. Failure to do so may leave you with a system that is 1937 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1938 required to run the 5.x binaries on more recent kernels. And so on 1939 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1940 1941 Make sure that you merge any new devices from GENERIC since the 1942 last time you updated your kernel config file. 1943 1944 [9] When checking out sources, you must include the -P flag to have 1945 cvs prune empty directories. 1946 1947 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1948 "?=" instead of the "=" assignment operator, so that buildworld can 1949 override the CPUTYPE if it needs to. 1950 1951 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1952 not on the command line, or in /etc/make.conf. buildworld will 1953 warn if it is improperly defined. 1954FORMAT: 1955 1956This file contains a list, in reverse chronological order, of major 1957breakages in tracking -current. It is not guaranteed to be a complete 1958list of such breakages, and only contains entries since October 10, 2007. 1959If you need to see UPDATING entries from before that date, you will need 1960to fetch an UPDATING file from an older FreeBSD release. 1961 1962Copyright information: 1963 1964Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1965 1966Redistribution, publication, translation and use, with or without 1967modification, in full or in part, in any form or format of this 1968document are permitted without further permission from the author. 1969 1970THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1971IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1972WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1973DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1974INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1975(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1976SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1977HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1978STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1979IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1980POSSIBILITY OF SUCH DAMAGE. 1981 1982Contact Warner Losh if you have any questions about your use of 1983this document. 1984 1985$FreeBSD: releng/9.3/UPDATING 306230 2016-09-23 07:48:34Z delphij $ 1986