UPDATING revision 189597
11541SrgrimesUpdating Information for FreeBSD current users 21541Srgrimes 31541SrgrimesThis file is maintained and copyrighted by M. Warner Losh 41541Srgrimes<imp@village.org>. See end of file for further details. For commonly 51541Srgrimesdone items, please see the COMMON ITEMS: section later in the file. 61541Srgrimes 71541SrgrimesItems affecting the ports and packages system can be found in 81541Srgrimes/usr/ports/UPDATING. Please read that file before running 91541Srgrimesportupgrade. 101541Srgrimes 111541SrgrimesNOTE TO PEOPLE WHO THINK THAT FreeBSD 8.x IS SLOW: 121541Srgrimes FreeBSD 8.x has many debugging features turned on, in 131541Srgrimes both the kernel and userland. These features attempt to detect 141541Srgrimes incorrect use of system primitives, and encourage loud failure 151541Srgrimes through extra sanity checking and fail stop semantics. They 161541Srgrimes also substantially impact system performance. If you want to 171541Srgrimes do performance measurement, benchmarking, and optimization, 181541Srgrimes you'll want to turn them off. This includes various WITNESS- 191541Srgrimes related kernel options, INVARIANTS, malloc debugging flags 201541Srgrimes in userland, and various verbose features in the kernel. Many 211541Srgrimes developers choose to disable these features on build machines 221541Srgrimes to maximize performance. (To disable malloc debugging, run 231541Srgrimes ln -s aj /etc/malloc.conf.) 241541Srgrimes 251541Srgrimes20090309: 261541Srgrimes IGMPv3 and Source-Specific Multicast (SSM) have been merged 271541Srgrimes to the IPv4 stack. VIMAGE hooks are in but not yet used. 281541Srgrimes 291541Srgrimes For kernel developers, the most important changes are that the 301541Srgrimes ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 311541Srgrimes and this lock has been downgraded to a non-recursive mutex. 321541Srgrimes 331541Srgrimes Transport protocols (UDP, Raw IP) are now responsible for filtering 341541Srgrimes inbound multicast traffic according to group membership and source 351541Srgrimes filters. The imo_multicast_filter() KPI exists for this purpose. 361541Srgrimes Transports which do not use multicast (SCTP, TCP) already reject 371541Srgrimes multicast by default. Forwarding and receive performance may improve 3814508Shsu as a mutex acquisition is no longer needed in the ip_input() 3929509Sbde low-level input path. in_addmulti() and in_delmulti() are shimmed 401541Srgrimes to new KPIs which exist to support SSM in-kernel. 411541Srgrimes 422165Spaul For application developers, it is recommended that loopback of 432865Sbde multicast datagrams be disabled for best performance, as this 442165Spaul will still cause the lock to be taken for each looped-back 451549Srgrimes datagram transmission. The net.inet.ip.mcast.loop sysctl may 461549Srgrimes be tuned to 0 to disable loopback by default; it defaults to 1 4718883Sbde to preserve the existing behaviour. 487090Sbde 497090Sbde For systems administrators, to obtain best performance with 501541Srgrimes multicast reception and multiple groups, it is always recommended 511541Srgrimes that a card with a suitably precise hash filter is used. Hash 521541Srgrimes collisions will still result in the lock being taken within the 531541Srgrimes transport protocol input path to check group membership. 541541Srgrimes 551541Srgrimes If deploying FreeBSD in an environment with IGMP snooping switches, 561541Srgrimes it is recommended that the net.inet.igmp.sendlocal sysctl remain 571541Srgrimes enabled; this forces 224.0.0.0/24 group membership to be announced 581541Srgrimes via IGMP. 591541Srgrimes 601541Srgrimes The size of 'struct igmpstat' has changed; netstat needs to be 611541Srgrimes recompiled to reflect this. 621541Srgrimes Bump __FreeBSD_version to 800070. 631541Srgrimes 641541Srgrimes20090309: 651541Srgrimes libusb20.so.1 is now installed as libusb.so.1 and the ports system 661541Srgrimes updated to use it. This requires a buildworld/installworld in order to 671541Srgrimes update the library and dependencies (usbconfig, etc). Its advisable to 681541Srgrimes rebuild all ports which uses libusb. More specific directions are given 691541Srgrimes in the ports collection UPDATING file. 7029208Sbde 711541Srgrimes20090302: 721541Srgrimes A workaround is committed to allow the creation of System V shared 7315113Sbde memory segment of size > 2 GB on the 64-bit architectures. 741541Srgrimes Due to a limitation of the existing ABI, the shm_segsz member 751541Srgrimes of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 761541Srgrimes wrong for large segments. Note that limits must be explicitely 771541Srgrimes raised to allow such segments to be created. 7816875Sbde 791541Srgrimes20090301: 801541Srgrimes The layout of struct ifnet has changed, requiring a rebuild of all 8114508Shsu network device driver modules. 821541Srgrimes 833304Sphk20090227: 841541Srgrimes The /dev handling for the new USB stack has changed, a 857612Sdg buildworld/installworld is required for libusb20. 861541Srgrimes 8718277Sbde20090223: 8818277Sbde The new USB2 stack has now been permanently moved in and all kernel and 8917975Sbde module names reverted to their previous values (eg, usb, ehci, ohci, 901541Srgrimes ums, ...). The old usb stack can be compiled in by prefixing the name 9115680Sgpalmer with the letter 'o', the old usb modules have been removed. 9218556Sbde Updating entry 20090216 for xorg and 20090215 for libmap may still 9318556Sbde apply. 941541Srgrimes 9529509Sbde20090217: 9613697Sgibbs The rc.conf(5) option if_up_delay has been renamed to 9713446Sphk defaultroute_delay to better reflect its purpose. If you have 982112Swollman customized this setting in /etc/rc.conf you need to update it to 9918556Sbde use the new name. 1001541Srgrimes 1011541Srgrimes20090216: 1028215Sdg xorg 7.4 wants to configure its input devices via hald which does not 1038215Sdg yet work with USB2. If the keyboard/mouse does not work in xorg then 10413414Sphk add 1051541Srgrimes Option "AllowEmptyInput" "off" 1068215Sdg to your ServerLayout section. This will cause X to use the configured 1078215Sdg kbd and mouse sections from your xorg.conf. 10813456Sbde 10913456Sbde20090215: 11013456Sbde The GENERIC kernels for all architectures now default to the new USB2 11113456Sbde stack. No kernel config options or code have been removed so if a 11213456Sbde problem arises please report it and optionally revert to the old USB 11313456Sbde stack. If you are loading USB kernel modules or have a custom kernel 1141541Srgrimes that includes GENERIC then ensure that usb names are also changed over, 11513456Sbde eg uftdi -> usb2_serial_ftdi. 1161541Srgrimes 1171541Srgrimes Older programs linked against the ports libusb 0.1 need to be 11813456Sbde redirected to the new stack's libusb20. /etc/libmap.conf can 1191541Srgrimes be used for this: 12027993Sdyson # Map old usb library to new one for usb2 stack 1216358Sphk libusb-0.1.so.8 libusb20.so.1 1221541Srgrimes 12326259Speter20090203: 1241541Srgrimes The ichsmb(4) driver has been changed to require SMBus slave 1251541Srgrimes addresses be left-justified (xxxxxxx0b) rather than right-justified. 1261541Srgrimes All of the other SMBus controller drivers require left-justified 1271541Srgrimes slave addresses, so this change makes all the drivers provide the 1281541Srgrimes same interface. 1291541Srgrimes 1301541Srgrimes20090201: 1311541Srgrimes INET6 statistics (struct ip6stat) was updated. 1321541Srgrimes netstat(1) needs to be recompiled. 1331541Srgrimes 1341541Srgrimes20090119: 1351541Srgrimes NTFS has been removed from GENERIC kernel on amd64 to match 1363484Sphk GENERIC on i386. Should not cause any issues since mount_ntfs(8) 13721101Sjhay will load ntfs.ko module automatically when NTFS support is 13821101Sjhay actually needed, unless ntfs.ko is not installed or security 1397109Sphk level prohibits loading kernel modules. If either is the case, 1402112Swollman "options NTFS" has to be added into kernel config. 1412112Swollman 14229509Sbde20090115: 14329509Sbde TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 14429509Sbde New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 14529509Sbde 800061. User space tools that rely on the size of struct tcpcb in 14629509Sbde tcp_var.h (e.g. sockstat) need to be recompiled. 1472112Swollman 1487090Sbde20081225: 1497090Sbde ng_tty(4) module updated to match the new TTY subsystem. 1507090Sbde Due to API change, user-level applications must be updated. 1517090Sbde New API support added to mpd5 CVS and expected to be present 1527090Sbde in next mpd5.3 release. 1537090Sbde 1547090Sbde20081219: 1557090Sbde With __FreeBSD_version 800060 the makefs tool is part of 1567090Sbde the base system (it was a port). 1577090Sbde 1582112Swollman20081216: 15929509Sbde The afdata and ifnet locks have been changed from mutexes to 1602112Swollman rwlocks, network modules will need to be re-compiled. 16129509Sbde 16229509Sbde20081214: 1632165Spaul __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 16426312Speter RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 16526312Speter The new code reduced struct rtentry{} by 16 bytes on 32-bit 16626312Speter architecture and 40 bytes on 64-bit architecture. The userland 16726312Speter applications "arp" and "ndp" have been updated accordingly. 16826312Speter The output from "netstat -r" shows only routing entries and 16926312Speter none of the L2 information. 17026312Speter 17126312Speter20081130: 17226312Speter __FreeBSD_version 800057 marks the switchover from the 17326312Speter binary ath hal to source code. Users must add the line: 17426312Speter 17526312Speter options AH_SUPPORT_AR5416 17626312Speter 17726312Speter to their kernel config files when specifying: 17826312Speter 17928440Sfsmp device ath_hal 18028440Sfsmp 18128440Sfsmp The ath_hal module no longer exists; the code is now compiled 18226312Speter together with the driver in the ath module. It is now 18326312Speter possible to tailor chip support (i.e. reduce the set of chips 18426312Speter and thereby the code size); consult ath_hal(4) for details. 18526312Speter 18626312Speter20081121: 18726312Speter __FreeBSD_version 800054 adds memory barriers to 18826312Speter <machine/atomic.h>, new interfaces to ifnet to facilitate 18926312Speter multiple hardware transmit queues for cards that support 19026312Speter them, and a lock-less ring-buffer implementation to 19126312Speter enable drivers to more efficiently manage queueing of 19226312Speter packets. 19326312Speter 19426312Speter20081117: 19526312Speter A new version of ZFS (version 13) has been merged to -HEAD. 19626312Speter This version has zpool attribute "listsnapshots" off by 19726312Speter default, which means "zfs list" does not show snapshots, 19826312Speter and is the same as Solaris behavior. 19926312Speter 20026312Speter20081028: 20126312Speter dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 20227585Sbde 20326312Speter20081009: 20426312Speter The uhci, ohci, ehci and slhci USB Host controller drivers have 20526312Speter been put into separate modules. If you load the usb module 20629509Sbde separately through loader.conf you will need to load the 20729509Sbde appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 20829509Sbde controller add the following to loader.conf: 20917658Sjulian 21029509Sbde uhci_load="YES" 21129509Sbde ehci_load="YES" 21217658Sjulian 21329509Sbde20081009: 21429509Sbde The ABI used by the PMC toolset has changed. Please keep 21517658Sjulian userland (libpmc(3)) and the kernel module (hwpmc(4)) in 21629509Sbde sync. 21729509Sbde 21829509Sbde20080820: 21927997Sjulian The TTY subsystem of the kernel has been replaced by a new 22029509Sbde implementation, which provides better scalability and an 22129509Sbde improved driver model. Most common drivers have been migrated to 22227997Sjulian the new TTY subsystem, while others have not. The following 22329509Sbde drivers have not yet been ported to the new TTY layer: 22429509Sbde 22529509Sbde PCI/ISA: 22629509Sbde cy, digi, rc, rp, sio 22729509Sbde 22829509Sbde USB: 22929509Sbde ubser, ucycom 23029509Sbde 23129509Sbde Line disciplines: 23229509Sbde ng_h4, ng_tty, ppp, sl, snp 23329509Sbde 23429509Sbde Adding these drivers to your kernel configuration file shall 23529509Sbde cause compilation to fail. 23629509Sbde 23729509Sbde20080818: 23829509Sbde ntpd has been upgraded to 4.2.4p5. 23929509Sbde 24029509Sbde20080801: 24129509Sbde OpenSSH has been upgraded to 5.1p1. 24229509Sbde 24318884Sbde For many years, FreeBSD's version of OpenSSH preferred DSA 24418884Sbde over RSA for host and user authentication keys. With this 24518884Sbde upgrade, we've switched to the vendor's default of RSA over 24618884Sbde DSA. This may cause upgraded clients to warn about unknown 24718884Sbde host keys even for previously known hosts. Users should 24818884Sbde follow the usual procedure for verifying host keys before 24918884Sbde accepting the RSA key. 2502865Sbde 251 This can be circumvented by setting the "HostKeyAlgorithms" 252 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 253 command line. 254 255 Please note that the sequence of keys offered for 256 authentication has been changed as well. You may want to 257 specify IdentityFile in a different order to revert this 258 behavior. 259 26020080713: 261 The sio(4) driver has been removed from the i386 and amd64 262 kernel configuration files. This means uart(4) is now the 263 default serial port driver on those platforms as well. 264 265 To prevent collisions with the sio(4) driver, the uart(4) driver 266 uses different names for its device nodes. This means the 267 onboard serial port will now most likely be called "ttyu0" 268 instead of "ttyd0". You may need to reconfigure applications to 269 use the new device names. 270 271 When using the serial port as a boot console, be sure to update 272 /boot/device.hints and /etc/ttys before booting the new kernel. 273 If you forget to do so, you can still manually specify the hints 274 at the loader prompt: 275 276 set hint.uart.0.at="isa" 277 set hint.uart.0.port="0x3F8" 278 set hint.uart.0.flags="0x10" 279 set hint.uart.0.irq="4" 280 boot -s 281 28220080609: 283 The gpt(8) utility has been removed. Use gpart(8) to partition 284 disks instead. 285 28620080603: 287 The version that Linuxulator emulates was changed from 2.4.2 288 to 2.6.16. If you experience any problems with Linux binaries 289 please try to set sysctl compat.linux.osrelease to 2.4.2 and 290 if it fixes the problem contact emulation mailing list. 291 29220080525: 293 ISDN4BSD (I4B) was removed from the src tree. You may need to 294 update a your kernel configuration and remove relevant entries. 295 29620080509: 297 I have checked in code to support multiple routing tables. 298 See the man pages setfib(1) and setfib(2). 299 This is a hopefully backwards compatible version, 300 but to make use of it you need to compile your kernel 301 with options ROUTETABLES=2 (or more up to 16). 302 30320080420: 304 The 802.11 wireless support was redone to enable multi-bss 305 operation on devices that are capable. The underlying device 306 is no longer used directly but instead wlanX devices are 307 cloned with ifconfig. This requires changes to rc.conf files. 308 For example, change: 309 ifconfig_ath0="WPA DHCP" 310 to 311 wlans_ath0=wlan0 312 ifconfig_wlan0="WPA DHCP" 313 see rc.conf(5) for more details. In addition, mergemaster of 314 /etc/rc.d is highly recommended. Simultaneous update of userland 315 and kernel wouldn't hurt either. 316 317 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 318 modules were merged into the base wlan module. All references 319 to these modules (e.g. in kernel config files) must be removed. 320 32120080408: 322 psm(4) has gained write(2) support in native operation level. 323 Arbitrary commands can be written to /dev/psm%d and status can 324 be read back from it. Therefore, an application is responsible 325 for status validation and error recovery. It is a no-op in 326 other operation levels. 327 32820080312: 329 Support for KSE threading has been removed from the kernel. To 330 run legacy applications linked against KSE libmap.conf may 331 be used. The following libmap.conf may be used to ensure 332 compatibility with any prior release: 333 334 libpthread.so.1 libthr.so.1 335 libpthread.so.2 libthr.so.2 336 libkse.so.3 libthr.so.3 337 33820080301: 339 The layout of struct vmspace has changed. This affects libkvm 340 and any executables that link against libkvm and use the 341 kvm_getprocs() function. In particular, but not exclusively, 342 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 343 The effects are minimal, but it's advisable to upgrade world 344 nonetheless. 345 34620080229: 347 The latest em driver no longer has support in it for the 348 82575 adapter, this is now moved to the igb driver. The 349 split was done to make new features that are incompatible 350 with older hardware easier to do. 351 35220080220: 353 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 354 likewise the kernel option is now GEOM_LINUX_LVM. 355 35620080211: 357 The default NFS mount mode has changed from UDP to TCP for 358 increased reliability. If you rely on (insecurely) NFS 359 mounting across a firewall you may need to update your 360 firewall rules. 361 36220080208: 363 Belatedly note the addition of m_collapse for compacting 364 mbuf chains. 365 36620080126: 367 The fts(3) structures have been changed to use adequate 368 integer types for their members and so to be able to cope 369 with huge file trees. The old fts(3) ABI is preserved 370 through symbol versioning in libc, so third-party binaries 371 using fts(3) should still work, although they will not take 372 advantage of the extended types. At the same time, some 373 third-party software might fail to build after this change 374 due to unportable assumptions made in its source code about 375 fts(3) structure members. Such software should be fixed 376 by its vendor or, in the worst case, in the ports tree. 377 FreeBSD_version 800015 marks this change for the unlikely 378 case that a portable fix is impossible. 379 38020080123: 381 To upgrade to -current after this date, you must be running 382 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 383 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 384 38520071128: 386 The ADAPTIVE_GIANT kernel option has been retired because its 387 functionality is the default now. 388 38920071118: 390 The AT keyboard emulation of sunkbd(4) has been turned on 391 by default. In order to make the special symbols of the Sun 392 keyboards driven by sunkbd(4) work under X these now have 393 to be configured the same way as Sun USB keyboards driven 394 by ukbd(4) (which also does AT keyboard emulation), f.e.: 395 396 Option "XkbLayout" "us" 397 Option "XkbRules" "xorg" 398 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 399 40020071024: 401 It has been decided that it is desirable to provide ABI 402 backwards compatibility to the FreeBSD 4/5/6 versions of the 403 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 404 broken with the introduction of PCI domain support (see the 405 20070930 entry). Unfortunately, this required the ABI of 406 PCIOCGETCONF to be broken again in order to be able to 407 provide backwards compatibility to the old version of that 408 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 409 again. As for prominent ports this affects neither pciutils 410 nor xorg-server this time, the hal port needs to be rebuilt 411 however. 412 41320071020: 414 The misnamed kthread_create() and friends have been renamed 415 to kproc_create() etc. Many of the callers already 416 used kproc_start().. 417 I will return kthread_create() and friends in a while 418 with implementations that actually create threads, not procs. 419 Renaming corresponds with version 800002. 420 42120071010: 422 RELENG_7 branched. 423 42420071009: 425 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 426 WITHOUT_LIBTHR are set. 427 42820070930: 429 The PCI code has been made aware of PCI domains. This means that 430 the location strings as used by pciconf(8) etc are now in the 431 following format: pci<domain>:<bus>:<device>[:<function>]. It 432 also means that consumers of <sys/pciio.h> potentially need to 433 be recompiled; this includes the hal and xorg-server ports. 434 43520070928: 436 The caching daemon (cached) was renamed to nscd. nscd.conf 437 configuration file should be used instead of cached.conf and 438 nscd_enable, nscd_pidfile and nscd_flags options should be used 439 instead of cached_enable, cached_pidfile and cached_flags in 440 rc.conf. 441 44220070921: 443 The getfacl(1) utility now prints owning user and group name 444 instead of owning uid and gid in the three line comment header. 445 This is the same behavior as getfacl(1) on Solaris and Linux. 446 44720070704: 448 The new IPsec code is now compiled in using the IPSEC option. The 449 IPSEC option now requires "device crypto" be defined in your kernel 450 configuration. The FAST_IPSEC kernel option is now deprecated. 451 45220070702: 453 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 454 note the changed syntax - keep state is now on by default. Also 455 note the fact that ftp-proxy(8) has been changed from bottom up and 456 has been moved from libexec to usr/sbin. Changes in the ALTQ 457 handling also affect users of IPFW's ALTQ capabilities. 458 45920070701: 460 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 461 only IPsec supported by FreeBSD. The new IPsec stack 462 supports both IPv4 and IPv6. The kernel option will change 463 after the code changes have settled in. For now the kernel 464 option IPSEC is deprecated and FAST_IPSEC is the only option, that 465 will change after some settling time. 466 46720070701: 468 The wicontrol(8) utility has been removed from the base system. wi(4) 469 cards should be configured using ifconfig(8), see the man page for more 470 information. 471 47220070612: 473 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 474 instead of the nve(4) driver. Please update your configuration 475 accordingly. 476 47720070612: 478 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 479 database if it is missing or older than the aliases file. If 480 desired, set the new rc.conf option sendmail_rebuild_aliases 481 to "YES" to restore that functionality. 482 48320070612: 484 The IPv4 multicast socket code has been considerably modified, and 485 moved to the file sys/netinet/in_mcast.c. Initial support for the 486 RFC 3678 Source-Specific Multicast Socket API has been added to 487 the IPv4 network stack. 488 489 Strict multicast and broadcast reception is now the default for 490 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 491 has now been removed. 492 493 The RFC 1724 hack for interface selection has been removed; the use 494 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 495 been added to replace it. Consumers such as routed will soon be 496 updated to reflect this. 497 498 These changes affect users who are running routed(8) or rdisc(8) 499 from the FreeBSD base system on point-to-point or unnumbered 500 interfaces. 501 50220070610: 503 The net80211 layer has changed significantly and all wireless 504 drivers that depend on it need to be recompiled. Further these 505 changes require that any program that interacts with the wireless 506 support in the kernel be recompiled; this includes: ifconfig, 507 wpa_supplicant, hostapd, and wlanstats. Users must also, for 508 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 509 if they use modules for wireless support. These modules implement 510 scanning support for station and ap modes, respectively. Failure 511 to load the appropriate module before marking a wireless interface 512 up will result in a message to the console and the device not 513 operating properly. 514 51520070610: 516 The pam_nologin(8) module ceases to provide an authentication 517 function and starts providing an account management function. 518 Consequent changes to /etc/pam.d should be brought in using 519 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 520 need manual editing as follows. Locate this line (or similar): 521 522 auth required pam_nologin.so no_warn 523 524 and change it according to this example: 525 526 account required pam_nologin.so no_warn 527 528 That is, the first word needs to be changed from "auth" to 529 "account". The new line can be moved to the account section 530 within the file for clarity. Not updating pam.conf(5) files 531 will result in nologin(5) ignored by the respective services. 532 53320070529: 534 The ether_ioctl() function has been synchronized with ioctl(2) 535 and ifnet.if_ioctl. Due to that, the size of one of its arguments 536 has changed on 64-bit architectures. All kernel modules using 537 ether_ioctl() need to be rebuilt on such architectures. 538 53920070516: 540 Improved INCLUDE_CONFIG_FILE support has been introduced to the 541 config(8) utility. In order to take advantage of this new 542 functionality, you are expected to recompile and install 543 src/usr.sbin/config. If you don't rebuild config(8), and your 544 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 545 build will be broken because of a missing "kernconfstring" 546 symbol. 547 54820070513: 549 Symbol versioning is enabled by default. To disable it, use 550 option WITHOUT_SYMVER. It is not advisable to attempt to 551 disable symbol versioning once it is enabled; your installworld 552 will break because a symbol version-less libc will get installed 553 before the install tools. As a result, the old install tools, 554 which previously had symbol dependencies to FBSD_1.0, will fail 555 because the freshly installed libc will not have them. 556 557 The default threading library (providing "libpthread") has been 558 changed to libthr. If you wish to have libkse as your default, 559 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 560 56120070423: 562 The ABI breakage in sendmail(8)'s libmilter has been repaired 563 so it is no longer necessary to recompile mail filters (aka, 564 milters). If you recompiled mail filters after the 20070408 565 note, it is not necessary to recompile them again. 566 56720070417: 568 The new trunk(4) driver has been renamed to lagg(4) as it better 569 reflects its purpose. ifconfig will need to be recompiled. 570 57120070408: 572 sendmail(8) has been updated to version 8.14.1. Mail filters 573 (aka, milters) compiled against the libmilter included in the 574 base operating system should be recompiled. 575 57620070302: 577 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 578 In order to use them one must agree to the respective LICENSE in 579 share/doc/legal and define legal.intel_<name>.license_ack=1 via 580 loader.conf(5) or kenv(1). Make sure to deinstall the now 581 deprecated modules from the respective firmware ports. 582 58320070228: 584 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 585 were removed from FreeBSD's libc. These originally came from INRIA 586 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 587 deprecated in previous releases. 588 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 589 replace it as a more portable (and re-entrant) API. 590 59120070224: 592 To support interrupt filtering a modification to the newbus API 593 has occurred, ABI was broken and __FreeBSD_version was bumped 594 to 700031. Please make sure that your kernel and modules are in 595 sync. For more info: 596 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 597 59820070224: 599 The IPv6 multicast forwarding code may now be loaded into GENERIC 600 kernels by loading the ip_mroute.ko module. This is built into the 601 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 602 set; see src.conf(5) for more information. 603 60420070214: 605 The output of netstat -r has changed. Without -n, we now only 606 print a "network name" without the prefix length if the network 607 address and mask exactly match a Class A/B/C network, and an entry 608 exists in the nsswitch "networks" map. 609 With -n, we print the full unabbreviated CIDR network prefix in 610 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 611 This change is in preparation for changes such as equal-cost 612 multipath, and to more generally assist operational deployment 613 of FreeBSD as a modern IPv4 router. 614 61520070210: 616 PIM has been turned on by default in the IPv4 multicast 617 routing code. The kernel option 'PIM' has now been removed. 618 PIM is now built by default if option 'MROUTING' is specified. 619 It may now be loaded into GENERIC kernels by loading the 620 ip_mroute.ko module. 621 62220070207: 623 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 624 has been removed. Its functionality may be achieved by explicitly 625 configuring gif(4) interfaces and using the 'phyint' keyword in 626 mrouted.conf. 627 XORP does not support source-routed IPv4 multicast tunnels nor the 628 integrated IPIP tunneling, therefore it is not affected by this 629 change. The __FreeBSD_version macro has been bumped to 700030. 630 63120061221: 632 Support for PCI Message Signalled Interrupts has been 633 re-enabled in the bge driver, only for those chips which are 634 believed to support it properly. If there are any problems, 635 MSI can be disabled completely by setting the 636 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 637 in the loader. 638 63920061214: 640 Support for PCI Message Signalled Interrupts has been 641 disabled again in the bge driver. Many revisions of the 642 hardware fail to support it properly. Support can be 643 re-enabled by removing the #define of BGE_DISABLE_MSI in 644 "src/sys/dev/bge/if_bge.c". 645 64620061214: 647 Support for PCI Message Signalled Interrupts has been added 648 to the bge driver. If there are any problems, MSI can be 649 disabled completely by setting the 'hw.pci.enable_msi' and 650 'hw.pci.enable_msix' tunables to 0 in the loader. 651 65220061205: 653 The removal of several facets of the experimental Threading 654 system from the kernel means that the proc and thread structures 655 have changed quite a bit. I suggest all kernel modules that might 656 reference these structures be recompiled.. Especially the 657 linux module. 658 65920061126: 660 Sound infrastructure has been updated with various fixes and 661 improvements. Most of the changes are pretty much transparent, 662 with exceptions of followings: 663 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 664 moved to their own dev sysctl nodes, for example: 665 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 666 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 667 own chardev in the form of "dsp%d.<function>%d", where <function> 668 is p = playback, r = record and v = virtual, respectively. Users 669 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 670 This does not affect those who are using "/dev/dsp". 671 67220061122: 673 geom(4)'s gmirror(8) class metadata structure has been 674 rev'd from v3 to v4. If you update across this point and 675 your metadata is converted for you, you will not be easily 676 able to downgrade since the /boot/kernel.old/geom_mirror.ko 677 kernel module will be unable to read the v4 metadata. You 678 can resolve this by doing from the loader(8) prompt: 679 680 set vfs.root.mountfrom="ufs:/dev/XXX" 681 682 where XXX is the root slice of one of the disks that composed 683 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 684 the array the same way you built it originally. 685 68620061122: 687 The following binaries have been disconnected from the build: 688 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 689 and mount_std. The functionality of these programs has been 690 moved into the mount program. For example, to mount a devfs 691 filesystem, instead of using mount_devfs, use: "mount -t devfs". 692 This does not affect entries in /etc/fstab, since entries in 693 /etc/fstab are always processed with "mount -t fstype". 694 69520061113: 696 Support for PCI Message Signalled Interrupts on i386 and amd64 697 has been added to the kernel and various drivers will soon be 698 updated to use MSI when it is available. If there are any problems, 699 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 700 and 'hw.pci.enable_msix' tunables to 0 in the loader. 701 70220061110: 703 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 704 The lockmgr object layout has been changed as a result of having 705 a lock_object embedded in it. As a consequence all file system 706 kernel modules must be re-compiled. The mutex profiling man page 707 has not yet been updated to reflect this change. 708 70920061026: 710 KSE in the kernel has now been made optional and turned on by 711 default. Use 'nooption KSE' in your kernel config to turn it 712 off. All kernel modules *must* be recompiled after this change. 713 There-after, modules from a KSE kernel should be compatible with 714 modules from a NOKSE kernel due to the temporary padding fields 715 added to 'struct proc'. 716 71720060929: 718 mrouted and its utilities have been removed from the base system. 719 72020060927: 721 Some ioctl(2) command codes have changed. Full backward ABI 722 compatibility is provided if the "options COMPAT_FREEBSD6" is 723 present in the kernel configuration file. Make sure to add 724 this option to your kernel config file, or recompile X.Org 725 and the rest of ports; otherwise they may refuse to work. 726 72720060924: 728 tcpslice has been removed from the base system. 729 73020060913: 731 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 732 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 733 systat needs to be rebuilt. 734 73520060903: 736 libpcap updated to v0.9.4 and tcpdump to v3.9.4 737 73820060816: 739 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 740 for IPFIREWALL_FORWARD is now as it was before when it was first 741 committed and for years after. The behaviour is now ON. 742 74320060725: 744 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 745 Now it can decrypt files created from different architectures. 746 Unfortunately, it is no longer able to decrypt a cipher text 747 generated with an older version on 64 bit architectures. 748 If you have such a file, you need old utility to decrypt it. 749 75020060709: 751 The interface version of the i4b kernel part has changed. So 752 after updating the kernel sources and compiling a new kernel, 753 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 754 be rebuilt, and vice versa. 755 75620060627: 757 The XBOX kernel now defaults to the nfe(4) driver instead of 758 the nve(4) driver. Please update your configuration 759 accordingly. 760 76120060514: 762 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 763 PCnet family of NICs has been removed. The new le(4) driver serves 764 as an equivalent but cross-platform replacement with the pcn(4) 765 driver still providing performance-optimized support for the subset 766 of AMD Am79C971 PCnet-FAST and greater chips as before. 767 76820060511: 769 The machdep.* sysctls and the adjkerntz utility have been 770 modified a bit. The new adjkerntz utility uses the new 771 sysctl names and sysctlbyname() calls, so it may be impossible 772 to run an old /sbin/adjkerntz utility in single-user mode 773 with a new kernel. Replace the `adjkerntz -i' step before 774 `make installworld' with: 775 776 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 777 778 and proceed as usual with the rest of the installworld-stage 779 steps. Otherwise, you risk installing binaries with their 780 timestamp set several hours in the future, especially if 781 you are running with local time set to GMT+X hours. 782 78320060412: 784 The ip6fw utility has been removed. The behavior provided by 785 ip6fw has been in ipfw2 for a good while and the rc.d scripts 786 have been updated to deal with it. There are some rules that 787 might not migrate cleanly. Use rc.firewall6 as a template to 788 rewrite rules. 789 79020060428: 791 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 792 attachments have been removed. Make sure to configure scc(4) 793 on sparc64. Note also that by default puc(4) will use uart(4) 794 and not sio(4) for serial ports because interrupt handling has 795 been optimized for multi-port serial cards and only uart(4) 796 implements the interface to support it. 797 79820060330: 799 The scc(4) driver replaces puc(4) for Serial Communications 800 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 801 Z8530. On sparc64, it is advised to add scc(4) to the kernel 802 configuration to make sure that the serial ports remain 803 functional. 804 80520060317: 806 Most world/kernel related NO_* build options changed names. 807 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 808 after FreeBSD ports) and should be set in /etc/src.conf 809 (the src.conf(5) manpage is provided). Full backwards 810 compatibility is maintained for the time being though it's 811 highly recommended to start moving old options out of the 812 system-wide /etc/make.conf file into the new /etc/src.conf 813 while also properly renaming them. More conversions will 814 likely follow. Posting to current@: 815 816 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 817 81820060305: 819 The NETSMBCRYPTO kernel option has been retired because its 820 functionality is always included in NETSMB and smbfs.ko now. 821 82220060303: 823 The TDFX_LINUX kernel option was retired and replaced by the 824 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 825 kernel module. Loading it alone should suffice to get 3dfx support 826 for Linux apps because it will pull in 3dfx.ko and linux.ko through 827 its dependencies. 828 82920060204: 830 The 'audit' group was added to support the new auditing functionality 831 in the base system. Be sure to follow the directions for updating, 832 including the requirement to run mergemaster -p. 833 83420060201: 835 The kernel ABI to file system modules was changed on i386. 836 Please make sure that your kernel and modules are in sync. 837 83820060118: 839 This actually occured some time ago, but installing the kernel 840 now also installs a bunch of symbol files for the kernel modules. 841 This increases the size of /boot/kernel to about 67Mbytes. You 842 will need twice this if you will eventually back this up to kernel.old 843 on your next install. 844 If you have a shortage of room in your root partition, you should add 845 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 846 to your /etc/make.conf. 847 84820060113: 849 libc's malloc implementation has been replaced. This change has the 850 potential to uncover application bugs that previously went unnoticed. 851 See the malloc(3) manual page for more details. 852 85320060112: 854 The generic netgraph(4) cookie has been changed. If you upgrade 855 kernel passing this point, you also need to upgrade userland 856 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 857 85820060106: 859 si(4)'s device files now contain the unit number. 860 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 861 86220060106: 863 The kernel ABI was mostly destroyed due to a change in the size 864 of struct lock_object which is nested in other structures such 865 as mutexes which are nested in all sorts of other structures. 866 Make sure your kernel and modules are in sync. 867 86820051231: 869 The page coloring algorithm in the VM subsystem was converted 870 from tuning with kernel options to autotuning. Please remove 871 any PQ_* option except PQ_NOOPT from your kernel config. 872 87320051211: 874 The net80211-related tools in the tools/tools/ath directory 875 have been moved to tools/tools/net80211 and renamed with a 876 "wlan" prefix. Scripts that use them should be adjusted 877 accordingly. 878 87920051202: 880 Scripts in the local_startup directories (as defined in 881 /etc/defaults/rc.conf) that have the new rc.d semantics will 882 now be run as part of the base system rcorder. If there are 883 errors or problems with one of these local scripts, it could 884 cause boot problems. If you encounter such problems, boot in 885 single user mode, remove that script from the */rc.d directory. 886 Please report the problem to the port's maintainer, and the 887 freebsd-ports@freebsd.org mailing list. 888 88920051129: 890 The nodev mount option was deprecated in RELENG_6 (where it 891 was a no-op), and is now unsupported. If you have nodev or dev listed 892 in /etc/fstab, remove it, otherwise it will result in a mount error. 893 89420051129: 895 ABI between ipfw(4) and ipfw(8) has been changed. You need 896 to rebuild ipfw(8) when rebuilding kernel. 897 89820051108: 899 rp(4)'s device files now contain the unit number. 900 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 901 90220051029: 903 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 904 Its /etc/rc.conf.d configuration file has been `ppp' from 905 the beginning, and hence there is no need to touch it. 906 90720051014: 908 Now most modules get their build-time options from the kernel 909 configuration file. A few modules still have fixed options 910 due to their non-conformant implementation, but they will be 911 corrected eventually. You may need to review the options of 912 the modules in use, explicitly specify the non-default options 913 in the kernel configuration file, and rebuild the kernel and 914 modules afterwards. 915 91620051001: 917 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 918 to turn polling(4) on your interfaces. 919 92020050927: 921 The old bridge(4) implementation was retired. The new 922 if_bridge(4) serves as a full functional replacement. 923 92420050722: 925 The ai_addrlen of a struct addrinfo was changed to a socklen_t 926 to conform to POSIX-2001. This change broke an ABI 927 compatibility on 64 bit architecture. You have to recompile 928 userland programs that use getaddrinfo(3) on 64 bit 929 architecture. 930 93120050711: 932 RELENG_6 branched here. 933 93420050629: 935 The pccard_ifconfig rc.conf variable has been removed and a new 936 variable, ifconfig_DEFAULT has been introduced. Unlike 937 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 938 do not have ifconfig_ifn entries rather than just those in 939 removable_interfaces. 940 94120050616: 942 Some previous versions of PAM have permitted the use of 943 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 944 to third party PAM modules in /usr/local/lib. A change has been 945 made to require the use of absolute paths in order to avoid 946 ambiguity and dependence on library path configuration, which may 947 affect existing configurations. 948 94920050610: 950 Major changes to network interface API. All drivers must be 951 recompiled. Drivers not in the base system will need to be 952 updated to the new APIs. 953 95420050609: 955 Changes were made to kinfo_proc in sys/user.h. Please recompile 956 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 957 will not behave correctly. 958 959 The API and ABI for hwpmc(4) have changed with the addition 960 of sampling support. Please recompile lib/libpmc(3) and 961 usr.sbin/{pmcstat,pmccontrol}. 962 96320050606: 964 The OpenBSD dhclient was imported in place of the ISC dhclient 965 and the network interface configuration scripts were updated 966 accordingly. If you use DHCP to configure your interfaces, you 967 must now run devd. Also, DNS updating was lost so you will need 968 to find a workaround if you use this feature. 969 970 The '_dhcp' user was added to support the OpenBSD dhclient. Be 971 sure to run mergemaster -p (like you are supposed to do every time 972 anyway). 973 97420050605: 975 if_bridge was added to the tree. This has changed struct ifnet. 976 Please recompile userland and all network related modules. 977 97820050603: 979 The n_net of a struct netent was changed to an uint32_t, and 980 1st argument of getnetbyaddr() was changed to an uint32_t, to 981 conform to POSIX-2001. These changes broke an ABI 982 compatibility on 64 bit architecture. With these changes, 983 shlib major of libpcap was bumped. You have to recompile 984 userland programs that use getnetbyaddr(3), getnetbyname(3), 985 getnetent(3) and/or libpcap on 64 bit architecture. 986 98720050528: 988 Kernel parsing of extra options on '#!' first lines of shell 989 scripts has changed. Lines with multiple options likely will 990 fail after this date. For full details, please see 991 http://people.freebsd.org/~gad/Updating-20050528.txt 992 99320050503: 994 The packet filter (pf) code has been updated to OpenBSD 3.7 995 Please note the changed anchor syntax and the fact that 996 authpf(8) now needs a mounted fdescfs(5) to function. 997 99820050415: 999 The NO_MIXED_MODE kernel option has been removed from the i386 1000 amd64 platforms as its use has been superceded by the new local 1001 APIC timer code. Any kernel config files containing this option 1002 should be updated. 1003 100420050227: 1005 The on-disk format of LC_CTYPE files was changed to be machine 1006 independent. Please make sure NOT to use NO_CLEAN buildworld 1007 when crossing this point. Crossing this point also requires 1008 recompile or reinstall of all locale depended packages. 1009 101020050225: 1011 The ifi_epoch member of struct if_data has been changed to 1012 contain the uptime at which the interface was created or the 1013 statistics zeroed rather then the wall clock time because 1014 wallclock time may go backwards. This should have no impact 1015 unless an snmp implementation is using this value (I know of 1016 none at this point.) 1017 101820050224: 1019 The acpi_perf and acpi_throttle drivers are now part of the 1020 acpi(4) main module. They are no longer built separately. 1021 102220050223: 1023 The layout of struct image_params has changed. You have to 1024 recompile all compatibility modules (linux, svr4, etc) for use 1025 with the new kernel. 1026 102720050223: 1028 The p4tcc driver has been merged into cpufreq(4). This makes 1029 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1030 compile in "device cpufreq" to restore this functionality. 1031 103220050220: 1033 The responsibility of recomputing the file system summary of 1034 a SoftUpdates-enabled dirty volume has been transferred to the 1035 background fsck. A rebuild of fsck(8) utility is recommended 1036 if you have updated the kernel. 1037 1038 To get the old behavior (recompute file system summary at mount 1039 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1040 mounting the new volume. 1041 104220050206: 1043 The cpufreq import is complete. As part of this, the sysctls for 1044 acpi(4) throttling have been removed. The power_profile script 1045 has been updated, so you can use performance/economy_cpu_freq in 1046 rc.conf(5) to set AC on/offline cpu frequencies. 1047 104820050206: 1049 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1050 requires recompiling libnetgraph and userland netgraph utilities. 1051 105220050114: 1053 Support for abbreviated forms of a number of ipfw options is 1054 now deprecated. Warnings are printed to stderr indicating the 1055 correct full form when a match occurs. Some abbreviations may 1056 be supported at a later date based on user feedback. To be 1057 considered for support, abbreviations must be in use prior to 1058 this commit and unlikely to be confused with current key words. 1059 106020041221: 1061 By a popular demand, a lot of NOFOO options were renamed 1062 to NO_FOO (see bsd.compat.mk for a full list). The old 1063 spellings are still supported, but will cause annoying 1064 warnings on stderr. Make sure you upgrade properly (see 1065 the COMMON ITEMS: section later in this file). 1066 106720041219: 1068 Auto-loading of ancillary wlan modules such as wlan_wep has 1069 been temporarily disabled; you need to statically configure 1070 the modules you need into your kernel or explicitly load them 1071 prior to use. Specifically, if you intend to use WEP encryption 1072 with an 802.11 device load/configure wlan_wep; if you want to 1073 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1074 and wlan_xauth as required. 1075 107620041213: 1077 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1078 (``enable lqr''), older versions would revert to LCP ECHO mode on 1079 negotiation failure. Now, ``enable echo'' is required for this 1080 behaviour. The ppp version number has been bumped to 3.4.2 to 1081 reflect the change. 1082 108320041201: 1084 The wlan support has been updated to split the crypto support 1085 into separate modules. For static WEP you must configure the 1086 wlan_wep module in your system or build and install the module 1087 in place where it can be loaded (the kernel will auto-load 1088 the module when a wep key is configured). 1089 109020041201: 1091 The ath driver has been updated to split the tx rate control 1092 algorithm into a separate module. You need to include either 1093 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1094 109520041116: 1096 Support for systems with an 80386 CPU has been removed. Please 1097 use FreeBSD 5.x or earlier on systems with an 80386. 1098 109920041110: 1100 We have had a hack which would mount the root filesystem 1101 R/W if the device were named 'md*'. As part of the vnode 1102 work I'm doing I have had to remove this hack. People 1103 building systems which use preloaded MD root filesystems 1104 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1105 their /etc/rc scripts. 1106 110720041104: 1108 FreeBSD 5.3 shipped here. 1109 111020041102: 1111 The size of struct tcpcb has changed again due to the removal 1112 of RFC1644 T/TCP. You have to recompile userland programs that 1113 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1114 111520041022: 1116 The size of struct tcpcb has changed. You have to recompile 1117 userland programs that read kmem for tcp sockets directly 1118 (netstat, sockstat, etc.) 1119 112020041016: 1121 RELENG_5 branched here. For older entries, please see updating 1122 in the RELENG_5 branch. 1123 1124COMMON ITEMS: 1125 1126 General Notes 1127 ------------- 1128 Avoid using make -j when upgrading. From time to time in the 1129 past there have been problems using -j with buildworld and/or 1130 installworld. This is especially true when upgrading between 1131 "distant" versions (eg one that cross a major release boundary 1132 or several minor releases, or when several months have passed 1133 on the -current branch). 1134 1135 Sometimes, obscure build problems are the result of environment 1136 poisoning. This can happen because the make utility reads its 1137 environment when searching for values for global variables. 1138 To run your build attempts in an "environmental clean room", 1139 prefix all make commands with 'env -i '. See the env(1) manual 1140 page for more details. 1141 1142 When upgrading from one major version to another it is generally 1143 best to upgrade to the latest code in the currently installed branch 1144 first, then do an upgrade to the new branch. This is the best-tested 1145 upgrade path, and has the highest probability of being successful. 1146 Please try this approach before reporting problems with a major 1147 version upgrade. 1148 1149 To build a kernel 1150 ----------------- 1151 If you are updating from a prior version of FreeBSD (even one just 1152 a few days old), you should follow this procedure. It is the most 1153 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1154 1155 make kernel-toolchain 1156 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1157 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1158 1159 To test a kernel once 1160 --------------------- 1161 If you just want to boot a kernel once (because you are not sure 1162 if it works, or if you want to boot a known bad kernel to provide 1163 debugging information) run 1164 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1165 nextboot -k testkernel 1166 1167 To just build a kernel when you know that it won't mess you up 1168 -------------------------------------------------------------- 1169 This assumes you are already running a 5.X system. Replace 1170 ${arch} with the architecture of your machine (e.g. "i386", 1171 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1172 1173 cd src/sys/${arch}/conf 1174 config KERNEL_NAME_HERE 1175 cd ../compile/KERNEL_NAME_HERE 1176 make depend 1177 make 1178 make install 1179 1180 If this fails, go to the "To build a kernel" section. 1181 1182 To rebuild everything and install it on the current system. 1183 ----------------------------------------------------------- 1184 # Note: sometimes if you are running current you gotta do more than 1185 # is listed here if you are upgrading from a really old current. 1186 1187 <make sure you have good level 0 dumps> 1188 make buildworld 1189 make kernel KERNCONF=YOUR_KERNEL_HERE 1190 [1] 1191 <reboot in single user> [3] 1192 mergemaster -p [5] 1193 make installworld 1194 make delete-old 1195 mergemaster [4] 1196 <reboot> 1197 1198 1199 To cross-install current onto a separate partition 1200 -------------------------------------------------- 1201 # In this approach we use a separate partition to hold 1202 # current's root, 'usr', and 'var' directories. A partition 1203 # holding "/", "/usr" and "/var" should be about 2GB in 1204 # size. 1205 1206 <make sure you have good level 0 dumps> 1207 <boot into -stable> 1208 make buildworld 1209 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1210 <maybe newfs current's root partition> 1211 <mount current's root partition on directory ${CURRENT_ROOT}> 1212 make installworld DESTDIR=${CURRENT_ROOT} 1213 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1214 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1215 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1216 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1217 <reboot into current> 1218 <do a "native" rebuild/install as described in the previous section> 1219 <maybe install compatibility libraries from ports/misc/compat*> 1220 <reboot> 1221 1222 1223 To upgrade in-place from 5.x-stable to current 1224 ---------------------------------------------- 1225 <make sure you have good level 0 dumps> 1226 make buildworld [9] 1227 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1228 [1] 1229 <reboot in single user> [3] 1230 mergemaster -p [5] 1231 make installworld 1232 make delete-old 1233 mergemaster -i [4] 1234 <reboot> 1235 1236 Make sure that you've read the UPDATING file to understand the 1237 tweaks to various things you need. At this point in the life 1238 cycle of current, things change often and you are on your own 1239 to cope. The defaults can also change, so please read ALL of 1240 the UPDATING entries. 1241 1242 Also, if you are tracking -current, you must be subscribed to 1243 freebsd-current@freebsd.org. Make sure that before you update 1244 your sources that you have read and understood all the recent 1245 messages there. If in doubt, please track -stable which has 1246 much fewer pitfalls. 1247 1248 [1] If you have third party modules, such as vmware, you 1249 should disable them at this point so they don't crash your 1250 system on reboot. 1251 1252 [3] From the bootblocks, boot -s, and then do 1253 fsck -p 1254 mount -u / 1255 mount -a 1256 cd src 1257 adjkerntz -i # if CMOS is wall time 1258 Also, when doing a major release upgrade, it is required that 1259 you boot into single user mode to do the installworld. 1260 1261 [4] Note: This step is non-optional. Failure to do this step 1262 can result in a significant reduction in the functionality of the 1263 system. Attempting to do it by hand is not recommended and those 1264 that pursue this avenue should read this file carefully, as well 1265 as the archives of freebsd-current and freebsd-hackers mailing lists 1266 for potential gotchas. 1267 1268 [5] Usually this step is a noop. However, from time to time 1269 you may need to do this if you get unknown user in the following 1270 step. It never hurts to do it all the time. You may need to 1271 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1272 install) after the buildworld before this step if you last updated 1273 from current before 20020224 or from -stable before 20020408. 1274 1275 [8] In order to have a kernel that can run the 4.x binaries 1276 needed to do an installworld, you must include the COMPAT_FREEBSD4 1277 option in your kernel. Failure to do so may leave you with a system 1278 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1279 is required to run the 5.x binaries on more recent kernels. 1280 1281 Make sure that you merge any new devices from GENERIC since the 1282 last time you updated your kernel config file. 1283 1284 [9] When checking out sources, you must include the -P flag to have 1285 cvs prune empty directories. 1286 1287 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1288 "?=" instead of the "=" assignment operator, so that buildworld can 1289 override the CPUTYPE if it needs to. 1290 1291 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1292 not on the command line, or in /etc/make.conf. buildworld will 1293 warn if it is improperly defined. 1294FORMAT: 1295 1296This file contains a list, in reverse chronological order, of major 1297breakages in tracking -current. Not all things will be listed here, 1298and it only starts on October 16, 2004. Updating files can found in 1299previous releases if your system is older than this. 1300 1301Copyright information: 1302 1303Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1304 1305Redistribution, publication, translation and use, with or without 1306modification, in full or in part, in any form or format of this 1307document are permitted without further permission from the author. 1308 1309THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1310IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1311WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1312DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1313INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1314(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1315SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1316HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1317STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1318IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1319POSSIBILITY OF SUCH DAMAGE. 1320 1321If you find this document useful, and you want to, you may buy the 1322author a beer. 1323 1324Contact Warner Losh if you have any questions about your use of 1325this document. 1326 1327$FreeBSD: head/UPDATING 189597 2009-03-09 19:56:37Z stas $ 1328