UPDATING revision 295061
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 1420160130 p36 FreeBSD-SA-16:11.openssl 15 16 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 17 1820160127 p35 FreeBSD-SA-16:08.bind 19 FreeBSD-SA-16:09.ntp 20 FreeBSD-SA-16:10.linux 21 22 Fix BIND remote denial of service vulnerability. [SA-16:08] 23 24 Fix multiple vulnerabilities of ntp. [SA-16:09] 25 26 Fix Linux compatibility layer issetugid(2) system call 27 vulnerability. [SA-16:10] 28 2920160114 p34 FreeBSD-SA-16:07.openssh 30 31 Fix OpenSSH client information leak. [SA-16:07] 32 3320160114 p33 FreeBSD-EN-16:02.pf 34 FreeBSD-EN-16:03.yplib 35 FreeBSD-SA-16:01.sctp 36 FreeBSD-SA-16:02.ntp 37 FreeBSD-SA-16:03.linux 38 FreeBSD-SA-16:04.linux 39 FreeBSD-SA-16:05.tcp 40 FreeBSD-SA-16:06.bsnmpd 41 42 Fix pf(4) generating bad TCP checksums. [EN-16:02] 43 Fix infinite loop in YP/NIS client library. [EN-16:03] 44 Fix remote denial of service in SCTP. [SA-16:01] 45 Update NTP to 4.2.8p5. [SA-16:02] 46 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 47 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 48 Fix crash in TCP MD5 signatures. [SA-16:05] 49 Fix insecure default permissions for snmpd.config. [SA-16:06] 50 5120151216 p32 FreeBSD-SA-15:27.bind 52 Fix BIND remote denial of service vulnerability. [SA-15:27] 53 5420151205 p31 FreeBSD-SA-15:26.openssl 55 56 Fix OpenSSL X509_ATTRIBUTE memory leak. [SA-15:26] 57 5820151104 p30 FreeBSD-SA-15:25.ntp [revised] 59 FreeBSD-EN-15:19.kqueue 60 FreeBSD-EN-15:20.vm 61 62 Fix regression of ntpq(8) utility exiting due to trap 6 in 63 9.3-RELEASE-p29. [SA-15:25] 64 65 Fix regression in ntpd(8) lacking support for RAWDCF reference 66 clock in 9.3-RELEASE-p29. [SA-15:25] 67 68 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 69 70 Fix applications exiting due to segmentation violation on a correct 71 memory address. [EN-15:20] 72 7320151026: p29 FreeBSD-SA-15:25.ntp 74 75 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 76 77 The configuration file syntax has been changed, thus mergemaster 78 run is recommended. Now the "kod" parameter requires "limited" 79 parameter. If the ntp.conf is not updated, the ntpd will run 80 successfully, but with KoD disabled. 81 8220151002: p28 FreeBSD-SA-15:24.rpcbind [revised] 83 Revised patch to address a regression that prevents NIS from working. 84 8520150929: p27 FreeBSD-SA-15:24.rpcbind 86 87 Fix rpcbind(8) remote denial of service. [SA-15:24] 88 8920150916: p26 FreeBSD-EN-15:18.pkg 90 91 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 92 9320150902: p25 FreeBSD-SA-15:23.bind 94 95 Fix BIND remote denial of service vulnerability. [SA-15:23] 96 9720150825: p24 FreeBSD-SA-15:21.amd64 98 FreeBSD-SA-15:22.openssh 99 FreeBSD-EN-15:15.pkg 100 101 Fix local privilege escalation in IRET handler. [SA-15:21] 102 103 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 104 105 Fix insufficient check of unsupported pkg(7) signature methods. 106 [EN-15:15] 107 10820150818: p23 FreeBSD-SA-15:20.expat 109 110 Fix multiple integer overflows in expat (libbsdxml) XML parser. 111 [SA-15:20] 112 11320150805: p22 FreeBSD-SA-15:19.routed 114 115 Fix routed remote denial of service vulnerability. 116 11720150728: p21 FreeBSD-SA-15:15.tcp 118 FreeBSD-SA-15:16.openssh 119 FreeBSD-SA-15:17.bind 120 121 Fix resource exhaustion in TCP reassembly. [SA-15:15] 122 123 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 124 125 Fix BIND remote denial of service vulnerability. [SA-15:17] 126 12720150721: p20 FreeBSD-SA-15:13.tcp 128 129 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 130 [SA-15:13] 131 13220150707: p19 FreeBSD-SA-15:11.bind 133 Fix BIND resolver remote denial of service when validating. 134 13520150630: p18 FreeBSD-EN-15:08.sendmail [revised] 136 FreeBSD-EN-15:09.xlocale 137 138 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 139 140 Fix inconsistency between locale and rune locale states. 141 [EN-15:09] 142 14320150618: p17 FreeBSD-EN-15:08.sendmail 144 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 145 14620150612: p16 FreeBSD-SA-15:10.openssl 147 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 148 14920150609: p15 FreeBSD-EN-15:06.file 150 151 Updated base system file(1) to 5.22 to address multiple denial 152 of service issues. 153 15420150513: p14 FreeBSD-EN-15:04.freebsd-update 155 156 Fix bug with freebsd-update(8) that does not ensure the previous 157 upgrade was completed. [EN-15:04] 158 15920150407: p13 FreeBSD-SA-15:04.igmp [revised] 160 FreeBSD-SA-15:07.ntp 161 FreeBSD-SA-15:09.ipv6 162 163 Improved patch for SA-15:04.igmp. 164 165 Fix multiple vulnerabilities of ntp. [SA-15:07] 166 167 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 168 16920150320: p12 170 Fix patch for SA-15:06.openssl. 171 17220150319: p11 FreeBSD-SA-15:06.openssl 173 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 174 17520150225: p10 FreeBSD-SA-15:04.igmp 176 FreeBSD-SA-15:05.bind 177 FreeBSD-EN-15:01.vt 178 FreeBSD-EN-15:02.openssl 179 FreeBSD-EN-15:03.freebsd-update 180 181 Fix integer overflow in IGMP protocol. [SA-15:04] 182 183 Fix BIND remote denial of service vulnerability. [SA-15:05] 184 185 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 186 187 Updated base system OpenSSL to 0.9.8zd. [EN-15:02] 188 189 Fix freebsd-update libraries update ordering issue. [EN-15:03] 190 19120150127: p9 FreeBSD-SA-15:02.kmem 192 FreeBSD-SA-15:03.sctp 193 194 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 195 vulnerability. [SA-15:02] 196 197 Fix SCTP stream reset vulnerability. [SA-15:03] 198 19920150114: p8 FreeBSD-SA-15:01.openssl 200 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 201 20220141223: p7 FreeBSD-SA-14:31.ntp 203 FreeBSD-EN-14:13.freebsd-update 204 205 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 206 Fix directory deletion issue in freebsd-update. [EN-14:13] 207 20820141210: p6 FreeBSD-SA-14:28.file 209 FreeBSD-SA-14:29.bind 210 211 Fix multiple vulnerabilities in file(1) and libmagic(3). 212 [SA-14:28] 213 214 Fix BIND remote denial of service vulnerability. [SA-14:29] 215 21620141104: p5 FreeBSD-SA-14:25.setlogin 217 FreeBSD-SA-14:26.ftp 218 FreeBSD-EN-14:12.zfs 219 220 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 221 [SA-14:25] 222 223 Fix remote command execution in ftp(1). [SA-14:26] 224 225 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 226 22720141022: p4 FreeBSD-EN-14:10.tzdata 228 FreeBSD-EN-14:11.crypt 229 230 Time zone data file update. [EN-14:10] 231 232 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 233 23420141021: p3 FreeBSD-SA-14:20.rtsold 235 FreeBSD-SA-14:21.routed 236 FreeBSD-SA-14:22.namei 237 FreeBSD-SA-14:23.openssl 238 239 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 240 241 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 242 243 Fix memory leak in sandboxed namei lookup. [SA-14:22] 244 245 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 246 24720140916: p2 FreeBSD-SA-14:19.tcp 248 Fix Denial of Service in TCP packet processing. [SA-14:19] 249 25020140909: p1 FreeBSD-SA-14:18.openssl 251 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 252 25320140716: 254 9.3-RELEASE. 255 25620140608: 257 On i386 and amd64 systems, the onifconsole flag is now set by default 258 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 259 as a login TTY if it is set in the bootloader as an active kernel 260 console. No changes in behavior should result otherwise. To revert to 261 the previous behavior, set ttyu0 to "off" in /etc/ttys. 262 26320140512: 264 Clang and llvm have been upgraded to 3.4.1 release. 265 26620140321: 267 Clang and llvm have been upgraded to 3.4 release. 268 26920140216: 270 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 271 been deprecated and will not be part of FreeBSD 11.0 and later 272 releases. If you use this driver, please consider switching to 273 the nfe(4) driver instead. 274 27520131216: 276 The behavior of gss_pseudo_random() for the krb5 mechanism 277 has changed, for applications requesting a longer random string 278 than produced by the underlying enctype's pseudo-random() function. 279 In particular, the random string produced from a session key of 280 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 281 be different at the 17th octet and later, after this change. 282 The counter used in the PRF+ construction is now encoded as a 283 big-endian integer in accordance with RFC 4402. 284 __FreeBSD_version is bumped to 902505. 285 28620130930: 287 9.2-RELEASE. 288 28920130823: 290 Behavior of devfs rules path matching has been changed. 291 Pattern is now always matched against fully qualified devfs 292 path and slash characters must be explicitly matched by 293 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 294 subdirectories must be reviewed. 295 29620130705: 297 hastctl(8)'s `status' command output changed to terse one-liner format. 298 Scripts using this should switch to `list' command or be rewritten. 299 30020130618: 301 Fix a bug that allowed a tracing process (e.g. gdb) to write 302 to a memory-mapped file in the traced process's address space 303 even if neither the traced process nor the tracing process had 304 write access to that file. 305 30620130605: 307 Added ZFS TRIM support which is enabled by default. To disable 308 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 309 310 Creating new ZFS pools and adding new devices to existing pools 311 first performs a full device level TRIM which can take a significant 312 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 313 to disable this behaviour. 314 315 ZFS TRIM requires the underlying device support BIO_DELETE which 316 is currently provided by methods such as ATA TRIM and SCSI UNMAP 317 via CAM, which are typically supported by SSD's. 318 319 Stats for ZFS TRIM can be monitored by looking at the sysctl's 320 under kstat.zfs.misc.zio_trim. 321 32220130524: 323 `list' command has been added to hastctl(8). For now, it is full 324 equivalent of `status' command. 325 WARNING: in the near future the output of hastctl's status command 326 will change to more terse format. If you use `hastctl status' 327 for parsing in your scripts, switch to `hastctl list'. 328 32920130430: 330 The mergemaster command now uses the default MAKEOBJDIRPREFIX 331 rather than creating it's own in the temporary directory in 332 order allow access to bootstrapped versions of tools such as 333 install and mtree. When upgrading from version of FreeBSD where 334 the install command does not support -l, you will need to 335 install a new mergemaster command if mergemaster -p is required. 336 This can be accomplished with the command (cd src/usr.sbin/mergemaster 337 && make install). 338 339 Due to the use of the new -l option to install(1) during build 340 and install, you must take care not to directly set the INSTALL 341 make variable in your /etc/make.conf, /etc/src.conf, or on the 342 command line. If you wish to use the -C flag for all installs 343 you may be able to add INSTALL+=-C to /etc/make.conf or 344 /etc/src.conf. 345 34620130429: 347 Fix a bug that allows NFS clients to issue READDIR on files. 348 34920130315: 350 The install(1) option -M has changed meaning and now takes an 351 argument that is a file or path to append logs to. In the 352 unlikely event that -M was the last option on the command line 353 and the command line contained at least two files and a target 354 directory the first file will have logs appended to it. The -M 355 option served little practical purpose in the last decade so it's 356 used expected to be extremely rare. 357 35820130225: 359 A new compression method (lz4) has been merged to. Please refer to 360 zpool-features(7) for more information. 361 362 Please refer to the "ZFS notes" section of this file for information 363 on upgrading boot ZFS pools. 364 36520121224: 366 The VFS KBI was changed with the merge of several nullfs 367 optimizations and fixes. All filesystem modules must be 368 recompiled. 369 37020121218: 371 With the addition of auditdistd(8), a new auditdistd user is now 372 depended on during installworld. "mergemaster -p" can be used to add 373 the user prior to installworld, as documented in the handbook. 374 37520121205: 376 9.1-RELEASE. 377 37820121129: 379 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 380 Starting with this version the old system of ZFS pool versioning 381 is superseded by "feature flags". This concept enables forward 382 compatibility against certain future changes in functionality of ZFS 383 pools. The first two read-only compatible "feature flags" for ZFS 384 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 385 For more information read the new zpool-features(7) manual page. 386 Please refer to the "ZFS notes" section of this file for information 387 on upgrading boot ZFS pools. 388 38920121114: 390 The commit introducing bsd.compiler.mk breaks the traditional 391 building of kernels before this point. Add -m ${SRC}/share/mk 392 (for the right value of SRC) to your command lines to work 393 around; update your useland to a point after this; or use the 394 buildkernel/installkernel top-level targets. See also 20120829. 395 39620121102: 397 The IPFIREWALL_FORWARD kernel option has been removed. Its 398 functionality now turned on by default. 399 40020120913: 401 The random(4) support for the VIA hardware random number 402 generator (`PADLOCK') is no longer enabled unconditionally. 403 Add the PADLOCK_RNG option in the custom kernel config if 404 needed. The GENERIC kernels on i386 and amd64 do include the 405 option, so the change only affects the custom kernel 406 configurations. 407 40820120829: 409 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 410 the traditional method, you must update your system with an installworld 411 before the kernel will build. The documented make buildkernel/installkernel 412 interfaces (coupled with fresh make kernel-toolchain) continue to work. 413 41420120727: 415 The sparc64 ZFS loader has been changed to no longer try to auto- 416 detect ZFS providers based on diskN aliases but now requires these 417 to be explicitly listed in the OFW boot-device environment variable. 418 41920120422: 420 Now unix domain sockets behave "as expected" on nullfs(5). Previously 421 nullfs(5) did not pass through all behaviours to the underlying layer, 422 as a result if we bound to a socket on the lower layer we could connect 423 only to the lower path; if we bound to the upper layer we could connect 424 only to the upper path. The new behavior is one can connect to both the 425 lower and the upper paths regardless what layer path one binds to. 426 42720120109: 428 The acpi_wmi(4) status device /dev/wmistat has been renamed to 429 /dev/wmistat0. 430 43120120106: 432 A new VOP_ADVISE() was added to support posix_fadvise(2). All 433 filesystem modules must be recompiled. 434 43520120106: 436 The interface of the VOP_VPTOCNP(9) changed, now the returned 437 vnode shall be referenced, previously it was required to be 438 only held. All in-tree filesystems are converted. 439 44020120106: 441 9.0-RELEASE. 442 44320111101: 444 The broken amd(4) driver has been replaced with esp(4) in the amd64, 445 i386 and pc98 GENERIC kernel configuration files. 446 44720110913: 448 This commit modifies vfs_register() so that it uses a hash 449 calculation to set vfc_typenum, which is enabled by default. 450 The first time a system is booted after this change, the 451 vfc_typenum values will change for all file systems. The 452 main effect of this is a change to the NFS server file handles 453 for file systems that use vfc_typenum in their fsid, such as ZFS. 454 It will, however, prevent vfc_typenum from changing when file 455 systems are loaded in a different order for subsequent reboots. 456 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 457 until you are ready to remount all NFS clients after a reboot. 458 45920110828: 460 Bump the shared library version numbers for libraries that 461 do not use symbol versioning, have changed the ABI compared 462 to stable/8 and which shared library version was not bumped. 463 Done as part of 9.0-RELEASE cycle. 464 46520110815: 466 During the merge of Capsicum features, the fget(9) KPI was modified. 467 This may require the rebuilding of out-of-tree device drivers -- 468 issues have been reported specifically with the nVidia device driver. 469 __FreeBSD_version is bumped to 900041. 470 471 Also, there is a period between 20110811 and 20110814 where the 472 special devices /dev/{stdin,stdout,stderr} did not work correctly. 473 Building world from a kernel during that window may not work. 474 47520110628: 476 The packet filter (pf) code has been updated to OpenBSD 4.5. 477 You need to update userland tools to be in sync with kernel. 478 This update breaks backward compatibility with earlier pfsync(4) 479 versions. Care must be taken when updating redundant firewall setups. 480 48120110608: 482 The following sysctls and tunables are retired on x86 platforms: 483 machdep.hlt_cpus 484 machdep.hlt_logical_cpus 485 The following sysctl is retired: 486 machdep.hyperthreading_allowed 487 The sysctls were supposed to provide a way to dynamically offline and 488 online selected CPUs on x86 platforms, but the implementation has not 489 been reliable especially with SCHED_ULE scheduler. 490 machdep.hyperthreading_allowed tunable is still available to ignore 491 hyperthreading CPUs at OS level. 492 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 493 where X is an APIC ID of a CPU. Be advised, though, that disabling 494 CPUs in non-uniform fashion will result in non-uniform topology and 495 may lead to sub-optimal system performance with SCHED_ULE, which is 496 a default scheduler. 497 49820110607: 499 cpumask_t type is retired and cpuset_t is used in order to describe 500 a mask of CPUs. 501 50220110531: 503 Changes to ifconfig(8) for dynamic address family detection mandate 504 that you are running a kernel of 20110525 or later. Make sure to 505 follow the update procedure to boot a new kernel before installing 506 world. 507 50820110513: 509 Support for sun4v architecture is officially dropped 510 51120110503: 512 Several KPI breaking changes have been committed to the mii(4) layer, 513 the PHY drivers and consequently some Ethernet drivers using mii(4). 514 This means that miibus.ko and the modules of the affected Ethernet 515 drivers need to be recompiled. 516 517 Note to kernel developers: Given that the OUI bit reversion problem 518 was fixed as part of these changes all mii(4) commits related to OUIs, 519 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 520 handling, no longer can be merged verbatim to stable/8 and previous 521 branches. 522 52320110430: 524 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 525 into their kernel configurations along with 'device pci'. 526 52720110427: 528 The default NFS client is now the new NFS client, so fstype "newnfs" 529 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 530 Although mounts via fstype "nfs" will usually work without userland 531 changes, it is recommended that the mount(8) and mount_nfs(8) 532 commands be rebuilt from sources and that a link to mount_nfs called 533 mount_oldnfs be created. The new client is compiled into the 534 kernel with "options NFSCL" and this is needed for diskless root 535 file systems. The GENERIC kernel configs have been changed to use 536 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 537 To use the regular/old client, you can "mount -t oldnfs ...". For 538 a diskless root file system, you must also include a line like: 539 540 vfs.root.mountfrom="oldnfs:" 541 542 in the boot/loader.conf on the root fs on the NFS server to make 543 a diskless root fs use the old client. 544 54520110424: 546 The GENERIC kernels for all architectures now default to the new 547 CAM-based ATA stack. It means that all legacy ATA drivers were 548 removed and replaced by respective CAM drivers. If you are using 549 ATA device names in /etc/fstab or other places, make sure to update 550 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 551 where 'Y's are the sequential numbers starting from zero for each type 552 in order of detection, unless configured otherwise with tunables, 553 see cam(4)). There will be symbolic links created in /dev/ to map 554 old adX devices to the respective adaY. They should provide basic 555 compatibility for file systems mounting in most cases, but they do 556 not support old user-level APIs and do not have respective providers 557 in GEOM. Consider using updated management tools with new device names. 558 559 It is possible to load devices ahci, ata, siis and mvs as modules, 560 but option ATA_CAM should remain in kernel configuration to make ata 561 module work as CAM driver supporting legacy ATA controllers. Device ata 562 still can be used in modular fashion (atacore + ...). Modules atadisk 563 and atapi* are not used and won't affect operation in ATA_CAM mode. 564 Note that to use CAM-based ATA kernel should include CAM devices 565 scbus, pass, da (or explicitly ada), cd and optionally others. All of 566 them are parts of the cam module. 567 568 ataraid(4) functionality is now supported by the RAID GEOM class. 569 To use it you can load geom_raid kernel module and use graid(8) tool 570 for management. Instead of /dev/arX device names, use /dev/raid/rX. 571 572 No kernel config options or code have been removed, so if a problem 573 arises, please report it and optionally revert to the old ATA stack. 574 In order to do it you can remove from the kernel config: 575 options ATA_CAM 576 device ahci 577 device mvs 578 device siis 579 , and instead add back: 580 device atadisk # ATA disk drives 581 device ataraid # ATA RAID drives 582 device atapicd # ATAPI CDROM drives 583 device atapifd # ATAPI floppy drives 584 device atapist # ATAPI tape drives 585 58620110423: 587 The default NFS server has been changed to the new server, which 588 was referred to as the experimental server. If you need to switch 589 back to the old NFS server, you must now put the "-o" option on 590 both the mountd and nfsd commands. This can be done using the 591 mountd_flags and nfs_server_flags rc.conf variables until an 592 update to the rc scripts is committed, which is coming soon. 593 59420110418: 595 The GNU Objective-C runtime library (libobjc), and other Objective-C 596 related components have been removed from the base system. If you 597 require an Objective-C library, please use one of the available ports. 598 59920110331: 600 ath(4) has been split into bus- and device- modules. if_ath contains 601 the HAL, the TX rate control and the network device code. if_ath_pci 602 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 603 contains the AHB glue. Users need to load both if_ath_pci and if_ath 604 in order to use ath on everything else. 605 606 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 607 need to load if_ath and if_ath_pci for ath(4) operation. 608 60920110314: 610 As part of the replacement of sysinstall, the process of building 611 release media has changed significantly. For details, please re-read 612 release(7), which has been updated to reflect the new build process. 613 61420110218: 615 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 616 is the last available version under GPLv2. It brings a number of new 617 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 618 4.1 and SSE 4.2), better support for powerpc64, a number of new 619 directives, and lots of other small improvements. See the ChangeLog 620 file in contrib/binutils for the full details. 621 62220110218: 623 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 624 compliant, and will now use half of hash for authentication. 625 This will break interoperability with all stacks (including all 626 actual FreeBSD versions) who implement 627 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 628 authentication). 629 The only workaround with such peers is to use another HMAC 630 algorithm for IPsec ("phase 2") authentication. 631 63220110207: 633 Remove the uio_yield prototype and symbol. This function has 634 been misnamed since it was introduced and should not be 635 globally exposed with this name. The equivalent functionality 636 is now available using kern_yield(curthread->td_user_pri). 637 The function remains undocumented. 638 63920110112: 640 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 641 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 642 for scalar sysctls is defined but disabled. Code that needs 643 UQUAD to pass the type checking that must compile on older 644 systems where the define is not present can check against 645 __FreeBSD_version >= 900030. 646 647 The system dialog(1) has been replaced with a new version previously 648 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 649 with the previous version, but the libdialog associated with it has 650 a largely incompatible API. As such, the original version of libdialog 651 will be kept temporarily as libodialog, until its base system consumers 652 are replaced or updated. Bump __FreeBSD_version to 900030. 653 65420110103: 655 If you are trying to run make universe on a -stable system, and you get 656 the following warning: 657 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 658 unknown. config(8) likely too old." 659 or something similar to it, then you must upgrade your -stable system 660 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 661 stable/8) or build the config from the latest stable/8 branch and 662 install it on your system. 663 664 Prior to this date, building a current universe on 8-stable system from 665 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 666 error in the first kernel build phase. A new config on those old 667 systems will fix that problem for older versions of -current. 668 66920101228: 670 The TCP stack has been modified to allow Khelp modules to interact with 671 it via helper hook points and store per-connection data in the TCP 672 control block. Bump __FreeBSD_version to 900029. User space tools that 673 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 674 be recompiled. 675 67620101114: 677 Generic IEEE 802.3 annex 31B full duplex flow control support has been 678 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 679 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 680 to take advantage of it instead of using custom implementations. This 681 means that these drivers now no longer unconditionally advertise 682 support for flow control but only do so if flow control is a selected 683 media option. This was implemented in the generic support that way in 684 order to allow flow control to be switched on and off via ifconfig(8) 685 with the PHY specific default to typically off in order to protect 686 from unwanted effects. Consequently, if you used flow control with 687 one of the above mentioned drivers you now need to explicitly enable 688 it, for example via: 689 ifconfig bge0 media auto mediaopt flowcontrol 690 691 Along with the above mentioned changes generic support for setting 692 1000baseT master mode also has been added and brgphy(4), ciphy(4), 693 e1000phy(4) as well as ip1000phy(4) have been converted to take 694 advantage of it. This means that these drivers now no longer take the 695 link0 parameter for selecting master mode but the master media option 696 has to be used instead, for example like in the following: 697 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 698 699 Selection of master mode now is also available with all other PHY 700 drivers supporting 1000baseT. 701 70220101111: 703 The TCP stack has received a significant update to add support for 704 modularised congestion control and generally improve the clarity of 705 congestion control decisions. Bump __FreeBSD_version to 900025. User 706 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 707 sockstat) need to be recompiled. 708 70920101002: 710 The man(1) utility has been replaced by a new version that no longer 711 uses /etc/manpath.config. Please consult man.conf(5) for how to 712 migrate local entries to the new format. 713 71420100928: 715 The copyright strings printed by login(1) and sshd(8) at the time of a 716 new connection have been removed to follow other operating systems and 717 upstream sshd. 718 71920100915: 720 A workaround for a fixed ld bug has been removed in kernel code, 721 so make sure that your system ld is built from sources after 722 revision 210245 from 2010-07-19 (r211583 if building head kernel 723 on stable/8, r211584 for stable/7; both from 2010-08-21). 724 A symptom of incorrect ld version is different addresses for 725 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 726 72720100913: 728 The $ipv6_prefer variable in rc.conf(5) has been split into 729 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 730 731 The $ip6addrctl_policy is a variable to choose a pre-defined 732 address selection policy set by ip6addrctl(8). A value 733 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 734 default is "AUTO". 735 736 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 737 flag (see an entry of 20090926) is set on an interface with no 738 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 739 security reason. If you want IPv6 link-local address on all 740 interfaces by default, set this to "YES". 741 742 The old ipv6_prefer="YES" is equivalent to 743 ipv6_activate_all_interfaces="YES" and 744 ip6addrctl_policy="ipv6_prefer". 745 74620100913: 747 DTrace has grown support for userland tracing. Due to this, DTrace is 748 now i386 and amd64 only. 749 dtruss(1) is now installed by default on those systems and a new 750 kernel module is needed for userland tracing: fasttrap. 751 No changes to your kernel config file are necessary to enable 752 userland tracing, but you might consider adding 'STRIP=' and 753 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 754 to have informative userland stack traces in DTrace (ustack). 755 75620100725: 757 The acpi_aiboost(4) driver has been removed in favor of the new 758 aibs(4) driver. You should update your kernel configuration file. 759 76020100722: 761 BSD grep has been imported to the base system and it is built by 762 default. It is completely BSD licensed, highly GNU-compatible, uses 763 less memory than its GNU counterpart and has a small codebase. 764 However, it is slower than its GNU counterpart, which is mostly 765 noticeable for larger searches, for smaller ones it is measurable 766 but not significant. The reason is complex, the most important factor 767 is that we lack a modern and efficient regex library and GNU 768 overcomes this by optimizing the searches internally. Future work 769 on improving the regex performance is planned, for the meantime, 770 users that need better performance, can build GNU grep instead by 771 setting the WITH_GNU_GREP knob. 772 77320100713: 774 Due to the import of powerpc64 support, all existing powerpc kernel 775 configuration files must be updated with a machine directive like this: 776 machine powerpc powerpc 777 778 In addition, an updated config(8) is required to build powerpc kernels 779 after this change. 780 78120100713: 782 A new version of ZFS (version 15) has been merged to -HEAD. 783 This version uses a python library for the following subcommands: 784 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 785 For full functionality of these commands the following port must 786 be installed: sysutils/py-zfs 787 78820100429: 789 'vm_page's are now hashed by physical address to an array of mutexes. 790 Currently this is only used to serialize access to hold_count. Over 791 time the page queue mutex will be peeled away. This changes the size 792 of pmap on every architecture. And requires all callers of vm_page_hold 793 and vm_page_unhold to be updated. 794 79520100402: 796 WITH_CTF can now be specified in src.conf (not recommended, there 797 are some problems with static executables), make.conf (would also 798 affect ports which do not use GNU make and do not override the 799 compile targets) or in the kernel config (via "makeoptions 800 WITH_CTF=yes"). 801 When WITH_CTF was specified there before this was silently ignored, 802 so make sure that WITH_CTF is not used in places which could lead 803 to unwanted behavior. 804 80520100311: 806 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 807 to allow 32-bit compatibility on non-x86 platforms. All kernel 808 configurations on amd64 and ia64 platforms using these options must 809 be modified accordingly. 810 81120100113: 812 The utmp user accounting database has been replaced with utmpx, 813 the user accounting interface standardized by POSIX. 814 Unfortunately the semantics of utmp and utmpx don't match, 815 making it practically impossible to support both interfaces. 816 The user accounting database is used by tools like finger(1), 817 last(1), talk(1), w(1) and ac(8). 818 819 All applications in the base system use utmpx. This means only 820 local binaries (e.g. from the ports tree) may still use these 821 utmp database files. These applications must be rebuilt to make 822 use of utmpx. 823 824 After the system has been upgraded, it is safe to remove the old 825 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 826 assuming their contents is of no importance anymore. Old wtmp 827 databases can only be used by last(1) and ac(8) after they have 828 been converted to the new format using wtmpcvt(1). 829 83020100108: 831 Introduce the kernel thread "deadlock resolver" (which can be enabled 832 via the DEADLKRES option, see NOTES for more details) and the 833 sleepq_type() function for sleepqueues. 834 83520091202: 836 The rc.firewall and rc.firewall6 were unified, and 837 rc.firewall6 and rc.d/ip6fw were removed. 838 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 839 variables are obsoleted. Instead, the following new rc 840 variables are added to rc.d/ipfw: 841 842 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 843 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 844 firewall_simple_onet_ipv6, firewall_trusted_ipv6 845 846 The meanings correspond to the relevant IPv4 variables. 847 84820091125: 849 8.0-RELEASE. 850 85120091113: 852 The default terminal emulation for syscons(4) has been changed 853 from cons25 to xterm on all platforms except pc98. This means 854 that the /etc/ttys file needs to be updated to ensure correct 855 operation of applications on the console. 856 857 The terminal emulation style can be toggled per window by using 858 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 859 options can be used to change the compile-time default back to 860 cons25. 861 862 To prevent graphical artifacts, make sure the TERM environment 863 variable is set to match the terminal emulation that is being 864 performed by syscons(4). 865 86620091109: 867 The layout of the structure ieee80211req_scan_result has changed. 868 Applications that require wireless scan results (e.g. ifconfig(8)) 869 from net80211 need to be recompiled. 870 871 Applications such as wpa_supplicant(8) may require a full world 872 build without using NO_CLEAN in order to get synchronized with the 873 new structure. 874 87520091025: 876 The iwn(4) driver has been updated to support the 5000 and 5150 series. 877 There's one kernel module for each firmware. Adding "device iwnfw" 878 to the kernel configuration file means including all three firmware 879 images inside the kernel. If you want to include just the one for 880 your wireless card, use the devices iwn4965fw, iwn5000fw or 881 iwn5150fw. 882 88320090926: 884 The rc.d/network_ipv6, IPv6 configuration script has been integrated 885 into rc.d/netif. The changes are the following: 886 887 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 888 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 889 Note that both variables need the "inet6" keyword at the head. 890 891 Do not set $ipv6_network_interfaces manually if you do not 892 understand what you are doing. It is not needed in most cases. 893 894 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 895 they are obsolete. 896 897 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 898 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 899 900 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 901 all configured interfaces have "inet6 accept_rtadv" in the 902 $ifconfig_IF_ipv6. These are for backward compatibility. 903 904 3. A new variable $ipv6_prefer has been added. If NO, IPv6 905 functionality of interfaces with no corresponding 906 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 907 and the default address selection policy of ip6addrctl(8) 908 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 909 Note that if you want to configure IPv6 functionality on the 910 disabled interfaces after boot, first you need to clear the flag by 911 using ifconfig(8) like: 912 913 ifconfig em0 inet6 -ifdisabled 914 915 If YES, the default address selection policy is set as 916 IPv6-preferred. 917 918 The default value of $ipv6_prefer is NO. 919 920 4. If your system need to receive Router Advertisement messages, 921 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 922 scripts automatically invoke rtsol(8) when the interface becomes 923 UP. The Router Advertisement messages are used for SLAAC 924 (State-Less Address AutoConfiguration). 925 92620090922: 927 802.11s D3.03 support was committed. This is incompatible with the 928 previous code, which was based on D3.0. 929 93020090912: 931 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 932 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 933 control whether accepting Router Advertisement messages or not. 934 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 935 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 936 The ifconfig(8) utility now supports these flags. 937 93820090910: 939 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 940 mount(8) and -a option for df(1) to see them. 941 94220090825: 943 The old tunable hw.bus.devctl_disable has been superseded by 944 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 945 replaced by hw.bus.devctl_queue=0. The default for this new tunable 946 is 1000. 947 94820090813: 949 Remove the option STOP_NMI. The default action is now to use NMI only 950 for KDB via the newly introduced function stop_cpus_hard() and 951 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 952 95320090803: 954 The stable/8 branch created in subversion. This corresponds to the 955 RELENG_8 branch in CVS. 956 95720090719: 958 Bump the shared library version numbers for all libraries that do not 959 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 960 __FreeBSD_version to 800105. 961 96220090714: 963 Due to changes in the implementation of virtual network stack support, 964 all network-related kernel modules must be recompiled. As this change 965 breaks the ABI, bump __FreeBSD_version to 800104. 966 96720090713: 968 The TOE interface to the TCP syncache has been modified to remove 969 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 970 The cxgb driver is the only TOE consumer affected by this change, and 971 needs to be recompiled along with the kernel. As this change breaks 972 the ABI, bump __FreeBSD_version to 800103. 973 97420090712: 975 Padding has been added to struct tcpcb, sackhint and tcpstat in 976 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 977 maintaining the ABI. However, this change breaks the ABI, so bump 978 __FreeBSD_version to 800102. User space tools that rely on the size of 979 any of these structs (e.g. sockstat) need to be recompiled. 980 98120090630: 982 The NFS_LEGACYRPC option has been removed along with the old kernel 983 RPC implementation that this option selected. Kernel configurations 984 may need to be adjusted. 985 98620090629: 987 The network interface device nodes at /dev/net/<interface> have been 988 removed. All ioctl operations can be performed the normal way using 989 routing sockets. The kqueue functionality can generally be replaced 990 with routing sockets. 991 99220090628: 993 The documentation from the FreeBSD Documentation Project (Handbook, 994 FAQ, etc.) is now installed via packages by sysinstall(8) and under 995 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 996 99720090624: 998 The ABI of various structures related to the SYSV IPC API have been 999 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1000 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1001 800100. 1002 100320090622: 1004 Layout of struct vnet has changed as routing related variables were 1005 moved to their own Vimage module. Modules need to be recompiled. Bump 1006 __FreeBSD_version to 800099. 1007 100820090619: 1009 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1010 respectively. As long as no more than 16 groups per process are used, 1011 no changes should be visible. When more than 16 groups are used, old 1012 binaries may fail if they call getgroups() or getgrouplist() with 1013 statically sized storage. Recompiling will work around this, but 1014 applications should be modified to use dynamically allocated storage 1015 for group arrays as POSIX.1-2008 does not cap an implementation's 1016 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1017 1018 NFS and portalfs mounts may also be affected as the list of groups is 1019 truncated to 16. Users of NFS who use more than 16 groups, should 1020 take care that negative group permissions are not used on the exported 1021 file systems as they will not be reliable unless a GSSAPI based 1022 authentication method is used. 1023 102420090616: 1025 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1026 option compiles in the support for adaptive spinning for lockmgrs 1027 which want to enable it. The lockinit() function now accepts the flag 1028 LK_ADAPTIVE in order to make the lock object subject to adaptive 1029 spinning when both held in write and read mode. 1030 103120090613: 1032 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1033 changed. User applications that use this ioctl need to be rebuilt. 1034 103520090611: 1036 The layout of struct thread has changed. Kernel and modules need to 1037 be rebuilt. 1038 103920090608: 1040 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1041 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1042 104320090602: 1044 window(1) has been removed from the base system. It can now be 1045 installed from ports. The port is called misc/window. 1046 104720090601: 1048 The way we are storing and accessing `routing table' entries has 1049 changed. Programs reading the FIB, like netstat, need to be 1050 re-compiled. 1051 105220090601: 1053 A new netisr implementation has been added for FreeBSD 8. Network 1054 file system modules, such as igmp, ipdivert, and others, should be 1055 rebuilt. 1056 Bump __FreeBSD_version to 800096. 1057 105820090530: 1059 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1060 more valid. 1061 106220090530: 1063 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1064 Bump __FreeBSD_version to 800094. 1065 106620090529: 1067 Add mnt_xflag field to 'struct mount'. File system modules need to be 1068 rebuilt. 1069 Bump __FreeBSD_version to 800093. 1070 107120090528: 1072 The compiling option ADAPTIVE_SX has been retired while it has been 1073 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1074 The KPI for sx_init_flags() changes as accepting flags: 1075 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1076 been introduced in order to handle the reversed logic. 1077 Bump __FreeBSD_version to 800092. 1078 107920090527: 1080 Add support for hierarchical jails. Remove global securelevel. 1081 Bump __FreeBSD_version to 800091. 1082 108320090523: 1084 The layout of struct vnet_net has changed, therefore modules 1085 need to be rebuilt. 1086 Bump __FreeBSD_version to 800090. 1087 108820090523: 1089 The newly imported zic(8) produces a new format in the output. Please 1090 run tzsetup(8) to install the newly created data to /etc/localtime. 1091 109220090520: 1093 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1094 hw.usb.* and is now consistent again with previous releases. 1095 109620090520: 1097 802.11 monitor mode support was revised and driver api's were changed. 1098 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1099 of DLT_IEEE802_11. No user-visible data structures were changed but 1100 applications that use DLT_IEEE802_11 may require changes. 1101 Bump __FreeBSD_version to 800088. 1102 110320090430: 1104 The layout of the following structs has changed: sysctl_oid, 1105 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1106 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1107 panics may be experienced. World rebuild is required for 1108 correctly checking networking state from userland. 1109 Bump __FreeBSD_version to 800085. 1110 111120090429: 1112 MLDv2 and Source-Specific Multicast (SSM) have been merged 1113 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1114 The implementation of SSM within FreeBSD's IPv6 stack closely 1115 follows the IPv4 implementation. 1116 1117 For kernel developers: 1118 1119 * The most important changes are that the ip6_output() and 1120 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1121 and this lock has been downgraded to a non-recursive mutex. 1122 1123 * As with the changes to the IPv4 stack to support SSM, filtering 1124 of inbound multicast traffic must now be performed by transport 1125 protocols within the IPv6 stack. This does not apply to TCP and 1126 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1127 1128 * The KPIs used by IPv6 multicast are similar to those used by 1129 the IPv4 stack, with the following differences: 1130 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1131 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1132 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1133 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1134 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1135 for MLDv1 have an additional 'timer' argument which is used to 1136 jitter the initial membership report for the solicited-node 1137 multicast membership on-link. 1138 * This is not strictly needed for MLDv2, which already jitters 1139 its report transmissions. However, the 'timer' argument is 1140 preserved in case MLDv1 is active on the interface. 1141 1142 * The KAME linked-list based IPv6 membership implementation has 1143 been refactored to use a vector similar to that used by the IPv4 1144 stack. 1145 Code which maintains a list of its own multicast memberships 1146 internally, e.g. carp, has been updated to reflect the new 1147 semantics. 1148 1149 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1150 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1151 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1152 implementation constraint which needs to be addressed in HEAD. 1153 1154 For application developers: 1155 1156 * The changes are broadly similar to those made for the IPv4 1157 stack. 1158 1159 * The use of IPv4 and IPv6 multicast socket options on the same 1160 socket, using mapped addresses, HAS NOT been tested or supported. 1161 1162 * There are a number of issues with the implementation of various 1163 IPv6 multicast APIs which need to be resolved in the API surface 1164 before the implementation is fully compatible with KAME userland 1165 use, and these are mostly to do with interface index treatment. 1166 1167 * The literature available discusses the use of either the delta / ASM 1168 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1169 using setsourcefilter(3)/getsourcefilter(3). For more information 1170 please refer to RFC 3768, 'Socket Interface Extensions for 1171 Multicast Source Filters'. 1172 1173 * Applications which use the published RFC 3678 APIs should be fine. 1174 1175 For systems administrators: 1176 1177 * The mtest(8) utility has been refactored to support IPv6, in 1178 addition to IPv4. Interface addresses are no longer accepted 1179 as arguments, their names must be used instead. The utility 1180 will map the interface name to its first IPv4 address as 1181 returned by getifaddrs(3). 1182 1183 * The ifmcstat(8) utility has also been updated to print the MLDv2 1184 endpoint state and source filter lists via sysctl(3). 1185 1186 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1187 loopback of IPv6 multicast datagrams by default; it defaults to 1 1188 to preserve the existing behaviour. Disabling multicast loopback is 1189 recommended for optimal system performance. 1190 1191 * The IPv6 MROUTING code has been changed to examine this sysctl 1192 instead of attempting to perform a group lookup before looping 1193 back forwarded datagrams. 1194 1195 Bump __FreeBSD_version to 800084. 1196 119720090422: 1198 Implement low-level Bluetooth HCI API. 1199 Bump __FreeBSD_version to 800083. 1200 120120090419: 1202 The layout of struct malloc_type, used by modules to register new 1203 memory allocation types, has changed. Most modules will need to 1204 be rebuilt or panics may be experienced. 1205 Bump __FreeBSD_version to 800081. 1206 120720090415: 1208 Anticipate overflowing inp_flags - add inp_flags2. 1209 This changes most offsets in inpcb, so checking v4 connection 1210 state will require a world rebuild. 1211 Bump __FreeBSD_version to 800080. 1212 121320090415: 1214 Add an llentry to struct route and struct route_in6. Modules 1215 embedding a struct route will need to be recompiled. 1216 Bump __FreeBSD_version to 800079. 1217 121820090414: 1219 The size of rt_metrics_lite and by extension rtentry has changed. 1220 Networking administration apps will need to be recompiled. 1221 The route command now supports show as an alias for get, weighting 1222 of routes, sticky and nostick flags to alter the behavior of stateful 1223 load balancing. 1224 Bump __FreeBSD_version to 800078. 1225 122620090408: 1227 Do not use Giant for kbdmux(4) locking. This is wrong and 1228 apparently causing more problems than it solves. This will 1229 re-open the issue where interrupt handlers may race with 1230 kbdmux(4) in polling mode. Typical symptoms include (but 1231 not limited to) duplicated and/or missing characters when 1232 low level console functions (such as gets) are used while 1233 interrupts are enabled (for example geli password prompt, 1234 mountroot prompt etc.). Disabling kbdmux(4) may help. 1235 123620090407: 1237 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1238 kernel modules referencing any of the above need to be recompiled. 1239 Bump __FreeBSD_version to 800075. 1240 124120090320: 1242 GEOM_PART has become the default partition slicer for storage devices, 1243 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1244 introduces some changes: 1245 1246 MSDOS/EBR: the devices created from MSDOS extended partition entries 1247 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1248 to devices with offset-based names. fstabs may need to be modified. 1249 1250 BSD: the "geometry does not match label" warning is harmless in most 1251 cases but it points to problems in file system misalignment with 1252 disk geometry. The "c" partition is now implicit, covers the whole 1253 top-level drive and cannot be (mis)used by users. 1254 1255 General: Kernel dumps are now not allowed to be written to devices 1256 whose partition types indicate they are meant to be used for file 1257 systems (or, in case of MSDOS partitions, as something else than 1258 the "386BSD" type). 1259 1260 Most of these changes date approximately from 200812. 1261 126220090319: 1263 The uscanner(4) driver has been removed from the kernel. This follows 1264 Linux removing theirs in 2.6 and making libusb the default interface 1265 (supported by sane). 1266 126720090319: 1268 The multicast forwarding code has been cleaned up. netstat(1) 1269 only relies on KVM now for printing bandwidth upcall meters. 1270 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1271 ip6_mroute_mod respectively. The config(5) options for statically 1272 compiling this code remain the same, i.e. 'options MROUTING'. 1273 127420090315: 1275 Support for the IFF_NEEDSGIANT network interface flag has been 1276 removed, which means that non-MPSAFE network device drivers are no 1277 longer supported. In particular, if_ar, if_sr, and network device 1278 drivers from the old (legacy) USB stack can no longer be built or 1279 used. 1280 128120090313: 1282 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1283 a bunch of new language catalog files have also been added. 1284 This means that some common libc messages are now localized and 1285 they depend on the LC_MESSAGES environmental variable. 1286 128720090313: 1288 The k8temp(4) driver has been renamed to amdtemp(4) since 1289 support for Family 10 and Family 11 CPU families was added. 1290 129120090309: 1292 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1293 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1294 1295 For kernel developers, the most important changes are that the 1296 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1297 and this lock has been downgraded to a non-recursive mutex. 1298 1299 Transport protocols (UDP, Raw IP) are now responsible for filtering 1300 inbound multicast traffic according to group membership and source 1301 filters. The imo_multicast_filter() KPI exists for this purpose. 1302 Transports which do not use multicast (SCTP, TCP) already reject 1303 multicast by default. Forwarding and receive performance may improve 1304 as a mutex acquisition is no longer needed in the ip_input() 1305 low-level input path. in_addmulti() and in_delmulti() are shimmed 1306 to new KPIs which exist to support SSM in-kernel. 1307 1308 For application developers, it is recommended that loopback of 1309 multicast datagrams be disabled for best performance, as this 1310 will still cause the lock to be taken for each looped-back 1311 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1312 be tuned to 0 to disable loopback by default; it defaults to 1 1313 to preserve the existing behaviour. 1314 1315 For systems administrators, to obtain best performance with 1316 multicast reception and multiple groups, it is always recommended 1317 that a card with a suitably precise hash filter is used. Hash 1318 collisions will still result in the lock being taken within the 1319 transport protocol input path to check group membership. 1320 1321 If deploying FreeBSD in an environment with IGMP snooping switches, 1322 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1323 enabled; this forces 224.0.0.0/24 group membership to be announced 1324 via IGMP. 1325 1326 The size of 'struct igmpstat' has changed; netstat needs to be 1327 recompiled to reflect this. 1328 Bump __FreeBSD_version to 800070. 1329 133020090309: 1331 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1332 updated to use it. This requires a buildworld/installworld in order to 1333 update the library and dependencies (usbconfig, etc). Its advisable to 1334 rebuild all ports which uses libusb. More specific directions are given 1335 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1336 libusb are no longer required and can be removed. 1337 133820090302: 1339 A workaround is committed to allow the creation of System V shared 1340 memory segment of size > 2 GB on the 64-bit architectures. 1341 Due to a limitation of the existing ABI, the shm_segsz member 1342 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1343 wrong for large segments. Note that limits must be explicitly 1344 raised to allow such segments to be created. 1345 134620090301: 1347 The layout of struct ifnet has changed, requiring a rebuild of all 1348 network device driver modules. 1349 135020090227: 1351 The /dev handling for the new USB stack has changed, a 1352 buildworld/installworld is required for libusb20. 1353 135420090223: 1355 The new USB2 stack has now been permanently moved in and all kernel and 1356 module names reverted to their previous values (eg, usb, ehci, ohci, 1357 ums, ...). The old usb stack can be compiled in by prefixing the name 1358 with the letter 'o', the old usb modules have been removed. 1359 Updating entry 20090216 for xorg and 20090215 for libmap may still 1360 apply. 1361 136220090217: 1363 The rc.conf(5) option if_up_delay has been renamed to 1364 defaultroute_delay to better reflect its purpose. If you have 1365 customized this setting in /etc/rc.conf you need to update it to 1366 use the new name. 1367 136820090216: 1369 xorg 7.4 wants to configure its input devices via hald which does not 1370 yet work with USB2. If the keyboard/mouse does not work in xorg then 1371 add 1372 Option "AllowEmptyInput" "off" 1373 to your ServerLayout section. This will cause X to use the configured 1374 kbd and mouse sections from your xorg.conf. 1375 137620090215: 1377 The GENERIC kernels for all architectures now default to the new USB2 1378 stack. No kernel config options or code have been removed so if a 1379 problem arises please report it and optionally revert to the old USB 1380 stack. If you are loading USB kernel modules or have a custom kernel 1381 that includes GENERIC then ensure that usb names are also changed over, 1382 eg uftdi -> usb2_serial_ftdi. 1383 1384 Older programs linked against the ports libusb 0.1 need to be 1385 redirected to the new stack's libusb20. /etc/libmap.conf can 1386 be used for this: 1387 # Map old usb library to new one for usb2 stack 1388 libusb-0.1.so.8 libusb20.so.1 1389 139020090209: 1391 All USB ethernet devices now attach as interfaces under the name ueN 1392 (eg. ue0). This is to provide a predictable name as vendors often 1393 change usb chipsets in a product without notice. 1394 139520090203: 1396 The ichsmb(4) driver has been changed to require SMBus slave 1397 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1398 All of the other SMBus controller drivers require left-justified 1399 slave addresses, so this change makes all the drivers provide the 1400 same interface. 1401 140220090201: 1403 INET6 statistics (struct ip6stat) was updated. 1404 netstat(1) needs to be recompiled. 1405 140620090119: 1407 NTFS has been removed from GENERIC kernel on amd64 to match 1408 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1409 will load ntfs.ko module automatically when NTFS support is 1410 actually needed, unless ntfs.ko is not installed or security 1411 level prohibits loading kernel modules. If either is the case, 1412 "options NTFS" has to be added into kernel config. 1413 141420090115: 1415 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1416 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1417 800061. User space tools that rely on the size of struct tcpcb in 1418 tcp_var.h (e.g. sockstat) need to be recompiled. 1419 142020081225: 1421 ng_tty(4) module updated to match the new TTY subsystem. 1422 Due to API change, user-level applications must be updated. 1423 New API support added to mpd5 CVS and expected to be present 1424 in next mpd5.3 release. 1425 142620081219: 1427 With __FreeBSD_version 800060 the makefs tool is part of 1428 the base system (it was a port). 1429 143020081216: 1431 The afdata and ifnet locks have been changed from mutexes to 1432 rwlocks, network modules will need to be re-compiled. 1433 143420081214: 1435 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1436 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1437 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1438 architecture and 40 bytes on 64-bit architecture. The userland 1439 applications "arp" and "ndp" have been updated accordingly. 1440 The output from "netstat -r" shows only routing entries and 1441 none of the L2 information. 1442 144320081130: 1444 __FreeBSD_version 800057 marks the switchover from the 1445 binary ath hal to source code. Users must add the line: 1446 1447 options AH_SUPPORT_AR5416 1448 1449 to their kernel config files when specifying: 1450 1451 device ath_hal 1452 1453 The ath_hal module no longer exists; the code is now compiled 1454 together with the driver in the ath module. It is now 1455 possible to tailor chip support (i.e. reduce the set of chips 1456 and thereby the code size); consult ath_hal(4) for details. 1457 145820081121: 1459 __FreeBSD_version 800054 adds memory barriers to 1460 <machine/atomic.h>, new interfaces to ifnet to facilitate 1461 multiple hardware transmit queues for cards that support 1462 them, and a lock-less ring-buffer implementation to 1463 enable drivers to more efficiently manage queueing of 1464 packets. 1465 146620081117: 1467 A new version of ZFS (version 13) has been merged to -HEAD. 1468 This version has zpool attribute "listsnapshots" off by 1469 default, which means "zfs list" does not show snapshots, 1470 and is the same as Solaris behavior. 1471 147220081028: 1473 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1474 147520081009: 1476 The uhci, ohci, ehci and slhci USB Host controller drivers have 1477 been put into separate modules. If you load the usb module 1478 separately through loader.conf you will need to load the 1479 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1480 controller add the following to loader.conf: 1481 1482 uhci_load="YES" 1483 ehci_load="YES" 1484 148520081009: 1486 The ABI used by the PMC toolset has changed. Please keep 1487 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1488 sync. 1489 149020081009: 1491 atapci kernel module now includes only generic PCI ATA 1492 driver. AHCI driver moved to ataahci kernel module. 1493 All vendor-specific code moved into separate kernel modules: 1494 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1495 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1496 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1497 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1498 149920080820: 1500 The TTY subsystem of the kernel has been replaced by a new 1501 implementation, which provides better scalability and an 1502 improved driver model. Most common drivers have been migrated to 1503 the new TTY subsystem, while others have not. The following 1504 drivers have not yet been ported to the new TTY layer: 1505 1506 PCI/ISA: 1507 cy, digi, rc, rp, sio 1508 1509 USB: 1510 ubser, ucycom 1511 1512 Line disciplines: 1513 ng_h4, ng_tty, ppp, sl, snp 1514 1515 Adding these drivers to your kernel configuration file shall 1516 cause compilation to fail. 1517 151820080818: 1519 ntpd has been upgraded to 4.2.4p5. 1520 152120080801: 1522 OpenSSH has been upgraded to 5.1p1. 1523 1524 For many years, FreeBSD's version of OpenSSH preferred DSA 1525 over RSA for host and user authentication keys. With this 1526 upgrade, we've switched to the vendor's default of RSA over 1527 DSA. This may cause upgraded clients to warn about unknown 1528 host keys even for previously known hosts. Users should 1529 follow the usual procedure for verifying host keys before 1530 accepting the RSA key. 1531 1532 This can be circumvented by setting the "HostKeyAlgorithms" 1533 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1534 command line. 1535 1536 Please note that the sequence of keys offered for 1537 authentication has been changed as well. You may want to 1538 specify IdentityFile in a different order to revert this 1539 behavior. 1540 154120080713: 1542 The sio(4) driver has been removed from the i386 and amd64 1543 kernel configuration files. This means uart(4) is now the 1544 default serial port driver on those platforms as well. 1545 1546 To prevent collisions with the sio(4) driver, the uart(4) driver 1547 uses different names for its device nodes. This means the 1548 onboard serial port will now most likely be called "ttyu0" 1549 instead of "ttyd0". You may need to reconfigure applications to 1550 use the new device names. 1551 1552 When using the serial port as a boot console, be sure to update 1553 /boot/device.hints and /etc/ttys before booting the new kernel. 1554 If you forget to do so, you can still manually specify the hints 1555 at the loader prompt: 1556 1557 set hint.uart.0.at="isa" 1558 set hint.uart.0.port="0x3F8" 1559 set hint.uart.0.flags="0x10" 1560 set hint.uart.0.irq="4" 1561 boot -s 1562 156320080609: 1564 The gpt(8) utility has been removed. Use gpart(8) to partition 1565 disks instead. 1566 156720080603: 1568 The version that Linuxulator emulates was changed from 2.4.2 1569 to 2.6.16. If you experience any problems with Linux binaries 1570 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1571 if it fixes the problem contact emulation mailing list. 1572 157320080525: 1574 ISDN4BSD (I4B) was removed from the src tree. You may need to 1575 update a your kernel configuration and remove relevant entries. 1576 157720080509: 1578 I have checked in code to support multiple routing tables. 1579 See the man pages setfib(1) and setfib(2). 1580 This is a hopefully backwards compatible version, 1581 but to make use of it you need to compile your kernel 1582 with options ROUTETABLES=2 (or more up to 16). 1583 158420080420: 1585 The 802.11 wireless support was redone to enable multi-bss 1586 operation on devices that are capable. The underlying device 1587 is no longer used directly but instead wlanX devices are 1588 cloned with ifconfig. This requires changes to rc.conf files. 1589 For example, change: 1590 ifconfig_ath0="WPA DHCP" 1591 to 1592 wlans_ath0=wlan0 1593 ifconfig_wlan0="WPA DHCP" 1594 see rc.conf(5) for more details. In addition, mergemaster of 1595 /etc/rc.d is highly recommended. Simultaneous update of userland 1596 and kernel wouldn't hurt either. 1597 1598 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1599 modules were merged into the base wlan module. All references 1600 to these modules (e.g. in kernel config files) must be removed. 1601 160220080408: 1603 psm(4) has gained write(2) support in native operation level. 1604 Arbitrary commands can be written to /dev/psm%d and status can 1605 be read back from it. Therefore, an application is responsible 1606 for status validation and error recovery. It is a no-op in 1607 other operation levels. 1608 160920080312: 1610 Support for KSE threading has been removed from the kernel. To 1611 run legacy applications linked against KSE libmap.conf may 1612 be used. The following libmap.conf may be used to ensure 1613 compatibility with any prior release: 1614 1615 libpthread.so.1 libthr.so.1 1616 libpthread.so.2 libthr.so.2 1617 libkse.so.3 libthr.so.3 1618 161920080301: 1620 The layout of struct vmspace has changed. This affects libkvm 1621 and any executables that link against libkvm and use the 1622 kvm_getprocs() function. In particular, but not exclusively, 1623 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1624 The effects are minimal, but it's advisable to upgrade world 1625 nonetheless. 1626 162720080229: 1628 The latest em driver no longer has support in it for the 1629 82575 adapter, this is now moved to the igb driver. The 1630 split was done to make new features that are incompatible 1631 with older hardware easier to do. 1632 163320080220: 1634 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1635 likewise the kernel option is now GEOM_LINUX_LVM. 1636 163720080211: 1638 The default NFS mount mode has changed from UDP to TCP for 1639 increased reliability. If you rely on (insecurely) NFS 1640 mounting across a firewall you may need to update your 1641 firewall rules. 1642 164320080208: 1644 Belatedly note the addition of m_collapse for compacting 1645 mbuf chains. 1646 164720080126: 1648 The fts(3) structures have been changed to use adequate 1649 integer types for their members and so to be able to cope 1650 with huge file trees. The old fts(3) ABI is preserved 1651 through symbol versioning in libc, so third-party binaries 1652 using fts(3) should still work, although they will not take 1653 advantage of the extended types. At the same time, some 1654 third-party software might fail to build after this change 1655 due to unportable assumptions made in its source code about 1656 fts(3) structure members. Such software should be fixed 1657 by its vendor or, in the worst case, in the ports tree. 1658 FreeBSD_version 800015 marks this change for the unlikely 1659 case that a portable fix is impossible. 1660 166120080123: 1662 To upgrade to -current after this date, you must be running 1663 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1664 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1665 166620071128: 1667 The ADAPTIVE_GIANT kernel option has been retired because its 1668 functionality is the default now. 1669 167020071118: 1671 The AT keyboard emulation of sunkbd(4) has been turned on 1672 by default. In order to make the special symbols of the Sun 1673 keyboards driven by sunkbd(4) work under X these now have 1674 to be configured the same way as Sun USB keyboards driven 1675 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1676 1677 Option "XkbLayout" "us" 1678 Option "XkbRules" "xorg" 1679 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1680 168120071024: 1682 It has been decided that it is desirable to provide ABI 1683 backwards compatibility to the FreeBSD 4/5/6 versions of the 1684 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1685 broken with the introduction of PCI domain support (see the 1686 20070930 entry). Unfortunately, this required the ABI of 1687 PCIOCGETCONF to be broken again in order to be able to 1688 provide backwards compatibility to the old version of that 1689 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1690 again. As for prominent ports this affects neither pciutils 1691 nor xorg-server this time, the hal port needs to be rebuilt 1692 however. 1693 169420071020: 1695 The misnamed kthread_create() and friends have been renamed 1696 to kproc_create() etc. Many of the callers already 1697 used kproc_start().. 1698 I will return kthread_create() and friends in a while 1699 with implementations that actually create threads, not procs. 1700 Renaming corresponds with version 800002. 1701 170220071010: 1703 RELENG_7 branched. 1704 1705COMMON ITEMS: 1706 1707 General Notes 1708 ------------- 1709 Avoid using make -j when upgrading. While generally safe, there are 1710 sometimes problems using -j to upgrade. If your upgrade fails with 1711 -j, please try again without -j. From time to time in the past there 1712 have been problems using -j with buildworld and/or installworld. This 1713 is especially true when upgrading between "distant" versions (eg one 1714 that cross a major release boundary or several minor releases, or when 1715 several months have passed on the -current branch). 1716 1717 Sometimes, obscure build problems are the result of environment 1718 poisoning. This can happen because the make utility reads its 1719 environment when searching for values for global variables. To run 1720 your build attempts in an "environmental clean room", prefix all make 1721 commands with 'env -i '. See the env(1) manual page for more details. 1722 1723 When upgrading from one major version to another it is generally best 1724 to upgrade to the latest code in the currently installed branch first, 1725 then do an upgrade to the new branch. This is the best-tested upgrade 1726 path, and has the highest probability of being successful. Please try 1727 this approach before reporting problems with a major version upgrade. 1728 1729 ZFS notes 1730 --------- 1731 When upgrading the boot ZFS pool to a new version, always follow 1732 these two steps: 1733 1734 1.) recompile and reinstall the ZFS boot loader and boot block 1735 (this is part of "make buildworld" and "make installworld") 1736 1737 2.) update the ZFS boot block on your boot drive 1738 1739 The following example updates the ZFS boot block on the first 1740 partition (freebsd-boot) of a GPT partitioned drive ad0: 1741 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1742 1743 Non-boot pools do not need these updates. 1744 1745 To build a kernel 1746 ----------------- 1747 If you are updating from a prior version of FreeBSD (even one just 1748 a few days old), you should follow this procedure. It is the most 1749 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1750 1751 make kernel-toolchain 1752 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1753 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1754 1755 To test a kernel once 1756 --------------------- 1757 If you just want to boot a kernel once (because you are not sure 1758 if it works, or if you want to boot a known bad kernel to provide 1759 debugging information) run 1760 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1761 nextboot -k testkernel 1762 1763 To just build a kernel when you know that it won't mess you up 1764 -------------------------------------------------------------- 1765 This assumes you are already running a CURRENT system. Replace 1766 ${arch} with the architecture of your machine (e.g. "i386", 1767 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1768 1769 cd src/sys/${arch}/conf 1770 config KERNEL_NAME_HERE 1771 cd ../compile/KERNEL_NAME_HERE 1772 make depend 1773 make 1774 make install 1775 1776 If this fails, go to the "To build a kernel" section. 1777 1778 To rebuild everything and install it on the current system. 1779 ----------------------------------------------------------- 1780 # Note: sometimes if you are running current you gotta do more than 1781 # is listed here if you are upgrading from a really old current. 1782 1783 <make sure you have good level 0 dumps> 1784 make buildworld 1785 make kernel KERNCONF=YOUR_KERNEL_HERE 1786 [1] 1787 <reboot in single user> [3] 1788 mergemaster -p [5] 1789 make installworld 1790 mergemaster -i [4] 1791 make delete-old [6] 1792 <reboot> 1793 1794 1795 To cross-install current onto a separate partition 1796 -------------------------------------------------- 1797 # In this approach we use a separate partition to hold 1798 # current's root, 'usr', and 'var' directories. A partition 1799 # holding "/", "/usr" and "/var" should be about 2GB in 1800 # size. 1801 1802 <make sure you have good level 0 dumps> 1803 <boot into -stable> 1804 make buildworld 1805 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1806 <maybe newfs current's root partition> 1807 <mount current's root partition on directory ${CURRENT_ROOT}> 1808 make installworld DESTDIR=${CURRENT_ROOT} 1809 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1810 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1811 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1812 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1813 <reboot into current> 1814 <do a "native" rebuild/install as described in the previous section> 1815 <maybe install compatibility libraries from ports/misc/compat*> 1816 <reboot> 1817 1818 1819 To upgrade in-place from stable to current 1820 ---------------------------------------------- 1821 <make sure you have good level 0 dumps> 1822 make buildworld [9] 1823 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1824 [1] 1825 <reboot in single user> [3] 1826 mergemaster -p [5] 1827 make installworld 1828 mergemaster -i [4] 1829 make delete-old [6] 1830 <reboot> 1831 1832 Make sure that you've read the UPDATING file to understand the 1833 tweaks to various things you need. At this point in the life 1834 cycle of current, things change often and you are on your own 1835 to cope. The defaults can also change, so please read ALL of 1836 the UPDATING entries. 1837 1838 Also, if you are tracking -current, you must be subscribed to 1839 freebsd-current@freebsd.org. Make sure that before you update 1840 your sources that you have read and understood all the recent 1841 messages there. If in doubt, please track -stable which has 1842 much fewer pitfalls. 1843 1844 [1] If you have third party modules, such as vmware, you 1845 should disable them at this point so they don't crash your 1846 system on reboot. 1847 1848 [3] From the bootblocks, boot -s, and then do 1849 fsck -p 1850 mount -u / 1851 mount -a 1852 cd src 1853 adjkerntz -i # if CMOS is wall time 1854 Also, when doing a major release upgrade, it is required that 1855 you boot into single user mode to do the installworld. 1856 1857 [4] Note: This step is non-optional. Failure to do this step 1858 can result in a significant reduction in the functionality of the 1859 system. Attempting to do it by hand is not recommended and those 1860 that pursue this avenue should read this file carefully, as well 1861 as the archives of freebsd-current and freebsd-hackers mailing lists 1862 for potential gotchas. The -U option is also useful to consider. 1863 See mergemaster(8) for more information. 1864 1865 [5] Usually this step is a noop. However, from time to time 1866 you may need to do this if you get unknown user in the following 1867 step. It never hurts to do it all the time. You may need to 1868 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1869 install) after the buildworld before this step if you last updated 1870 from [78]-stable or 9-stable before 20130430. 1871 1872 [6] This only deletes old files and directories. Old libraries 1873 can be deleted by "make delete-old-libs", but you have to make 1874 sure that no program is using those libraries anymore. 1875 1876 [8] In order to have a kernel that can run the 4.x binaries needed to 1877 do an installworld, you must include the COMPAT_FREEBSD4 option in 1878 your kernel. Failure to do so may leave you with a system that is 1879 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1880 required to run the 5.x binaries on more recent kernels. And so on 1881 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1882 1883 Make sure that you merge any new devices from GENERIC since the 1884 last time you updated your kernel config file. 1885 1886 [9] When checking out sources, you must include the -P flag to have 1887 cvs prune empty directories. 1888 1889 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1890 "?=" instead of the "=" assignment operator, so that buildworld can 1891 override the CPUTYPE if it needs to. 1892 1893 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1894 not on the command line, or in /etc/make.conf. buildworld will 1895 warn if it is improperly defined. 1896FORMAT: 1897 1898This file contains a list, in reverse chronological order, of major 1899breakages in tracking -current. It is not guaranteed to be a complete 1900list of such breakages, and only contains entries since October 10, 2007. 1901If you need to see UPDATING entries from before that date, you will need 1902to fetch an UPDATING file from an older FreeBSD release. 1903 1904Copyright information: 1905 1906Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1907 1908Redistribution, publication, translation and use, with or without 1909modification, in full or in part, in any form or format of this 1910document are permitted without further permission from the author. 1911 1912THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1913IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1914WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1915DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1916INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1917(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1918SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1919HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1920STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1921IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1922POSSIBILITY OF SUCH DAMAGE. 1923 1924Contact Warner Losh if you have any questions about your use of 1925this document. 1926 1927$FreeBSD: releng/9.3/UPDATING 295061 2016-01-30 06:12:03Z delphij $ 1928