UPDATING revision 189770
1Updating Information for FreeBSD current users 2 3This file is maintained and copyrighted by M. Warner Losh 4<imp@village.org>. See end of file for further details. For commonly 5done items, please see the COMMON ITEMS: section later in the file. 6 7Items affecting the ports and packages system can be found in 8/usr/ports/UPDATING. Please read that file before running 9portupgrade. 10 11NOTE TO PEOPLE WHO THINK THAT FreeBSD 8.x IS SLOW: 12 FreeBSD 8.x has many debugging features turned on, in 13 both the kernel and userland. These features attempt to detect 14 incorrect use of system primitives, and encourage loud failure 15 through extra sanity checking and fail stop semantics. They 16 also substantially impact system performance. If you want to 17 do performance measurement, benchmarking, and optimization, 18 you'll want to turn them off. This includes various WITNESS- 19 related kernel options, INVARIANTS, malloc debugging flags 20 in userland, and various verbose features in the kernel. Many 21 developers choose to disable these features on build machines 22 to maximize performance. (To disable malloc debugging, run 23 ln -s aj /etc/malloc.conf.) 24 2520090313: 26 The k8temp(4) driver has been renamed to amdtemp(4) since 27 support for K10 and K11 CPU families was added. 28 2920090309: 30 IGMPv3 and Source-Specific Multicast (SSM) have been merged 31 to the IPv4 stack. VIMAGE hooks are in but not yet used. 32 33 For kernel developers, the most important changes are that the 34 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 35 and this lock has been downgraded to a non-recursive mutex. 36 37 Transport protocols (UDP, Raw IP) are now responsible for filtering 38 inbound multicast traffic according to group membership and source 39 filters. The imo_multicast_filter() KPI exists for this purpose. 40 Transports which do not use multicast (SCTP, TCP) already reject 41 multicast by default. Forwarding and receive performance may improve 42 as a mutex acquisition is no longer needed in the ip_input() 43 low-level input path. in_addmulti() and in_delmulti() are shimmed 44 to new KPIs which exist to support SSM in-kernel. 45 46 For application developers, it is recommended that loopback of 47 multicast datagrams be disabled for best performance, as this 48 will still cause the lock to be taken for each looped-back 49 datagram transmission. The net.inet.ip.mcast.loop sysctl may 50 be tuned to 0 to disable loopback by default; it defaults to 1 51 to preserve the existing behaviour. 52 53 For systems administrators, to obtain best performance with 54 multicast reception and multiple groups, it is always recommended 55 that a card with a suitably precise hash filter is used. Hash 56 collisions will still result in the lock being taken within the 57 transport protocol input path to check group membership. 58 59 If deploying FreeBSD in an environment with IGMP snooping switches, 60 it is recommended that the net.inet.igmp.sendlocal sysctl remain 61 enabled; this forces 224.0.0.0/24 group membership to be announced 62 via IGMP. 63 64 The size of 'struct igmpstat' has changed; netstat needs to be 65 recompiled to reflect this. 66 Bump __FreeBSD_version to 800070. 67 6820090309: 69 libusb20.so.1 is now installed as libusb.so.1 and the ports system 70 updated to use it. This requires a buildworld/installworld in order to 71 update the library and dependencies (usbconfig, etc). Its advisable to 72 rebuild all ports which uses libusb. More specific directions are given 73 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 74 libusb are no longer required and can be removed. 75 7620090302: 77 A workaround is committed to allow the creation of System V shared 78 memory segment of size > 2 GB on the 64-bit architectures. 79 Due to a limitation of the existing ABI, the shm_segsz member 80 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 81 wrong for large segments. Note that limits must be explicitely 82 raised to allow such segments to be created. 83 8420090301: 85 The layout of struct ifnet has changed, requiring a rebuild of all 86 network device driver modules. 87 8820090227: 89 The /dev handling for the new USB stack has changed, a 90 buildworld/installworld is required for libusb20. 91 9220090223: 93 The new USB2 stack has now been permanently moved in and all kernel and 94 module names reverted to their previous values (eg, usb, ehci, ohci, 95 ums, ...). The old usb stack can be compiled in by prefixing the name 96 with the letter 'o', the old usb modules have been removed. 97 Updating entry 20090216 for xorg and 20090215 for libmap may still 98 apply. 99 10020090217: 101 The rc.conf(5) option if_up_delay has been renamed to 102 defaultroute_delay to better reflect its purpose. If you have 103 customized this setting in /etc/rc.conf you need to update it to 104 use the new name. 105 10620090216: 107 xorg 7.4 wants to configure its input devices via hald which does not 108 yet work with USB2. If the keyboard/mouse does not work in xorg then 109 add 110 Option "AllowEmptyInput" "off" 111 to your ServerLayout section. This will cause X to use the configured 112 kbd and mouse sections from your xorg.conf. 113 11420090215: 115 The GENERIC kernels for all architectures now default to the new USB2 116 stack. No kernel config options or code have been removed so if a 117 problem arises please report it and optionally revert to the old USB 118 stack. If you are loading USB kernel modules or have a custom kernel 119 that includes GENERIC then ensure that usb names are also changed over, 120 eg uftdi -> usb2_serial_ftdi. 121 122 Older programs linked against the ports libusb 0.1 need to be 123 redirected to the new stack's libusb20. /etc/libmap.conf can 124 be used for this: 125 # Map old usb library to new one for usb2 stack 126 libusb-0.1.so.8 libusb20.so.1 127 12820090203: 129 The ichsmb(4) driver has been changed to require SMBus slave 130 addresses be left-justified (xxxxxxx0b) rather than right-justified. 131 All of the other SMBus controller drivers require left-justified 132 slave addresses, so this change makes all the drivers provide the 133 same interface. 134 13520090201: 136 INET6 statistics (struct ip6stat) was updated. 137 netstat(1) needs to be recompiled. 138 13920090119: 140 NTFS has been removed from GENERIC kernel on amd64 to match 141 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 142 will load ntfs.ko module automatically when NTFS support is 143 actually needed, unless ntfs.ko is not installed or security 144 level prohibits loading kernel modules. If either is the case, 145 "options NTFS" has to be added into kernel config. 146 14720090115: 148 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 149 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 150 800061. User space tools that rely on the size of struct tcpcb in 151 tcp_var.h (e.g. sockstat) need to be recompiled. 152 15320081225: 154 ng_tty(4) module updated to match the new TTY subsystem. 155 Due to API change, user-level applications must be updated. 156 New API support added to mpd5 CVS and expected to be present 157 in next mpd5.3 release. 158 15920081219: 160 With __FreeBSD_version 800060 the makefs tool is part of 161 the base system (it was a port). 162 16320081216: 164 The afdata and ifnet locks have been changed from mutexes to 165 rwlocks, network modules will need to be re-compiled. 166 16720081214: 168 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 169 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 170 The new code reduced struct rtentry{} by 16 bytes on 32-bit 171 architecture and 40 bytes on 64-bit architecture. The userland 172 applications "arp" and "ndp" have been updated accordingly. 173 The output from "netstat -r" shows only routing entries and 174 none of the L2 information. 175 17620081130: 177 __FreeBSD_version 800057 marks the switchover from the 178 binary ath hal to source code. Users must add the line: 179 180 options AH_SUPPORT_AR5416 181 182 to their kernel config files when specifying: 183 184 device ath_hal 185 186 The ath_hal module no longer exists; the code is now compiled 187 together with the driver in the ath module. It is now 188 possible to tailor chip support (i.e. reduce the set of chips 189 and thereby the code size); consult ath_hal(4) for details. 190 19120081121: 192 __FreeBSD_version 800054 adds memory barriers to 193 <machine/atomic.h>, new interfaces to ifnet to facilitate 194 multiple hardware transmit queues for cards that support 195 them, and a lock-less ring-buffer implementation to 196 enable drivers to more efficiently manage queueing of 197 packets. 198 19920081117: 200 A new version of ZFS (version 13) has been merged to -HEAD. 201 This version has zpool attribute "listsnapshots" off by 202 default, which means "zfs list" does not show snapshots, 203 and is the same as Solaris behavior. 204 20520081028: 206 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 207 20820081009: 209 The uhci, ohci, ehci and slhci USB Host controller drivers have 210 been put into separate modules. If you load the usb module 211 separately through loader.conf you will need to load the 212 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 213 controller add the following to loader.conf: 214 215 uhci_load="YES" 216 ehci_load="YES" 217 21820081009: 219 The ABI used by the PMC toolset has changed. Please keep 220 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 221 sync. 222 22320080820: 224 The TTY subsystem of the kernel has been replaced by a new 225 implementation, which provides better scalability and an 226 improved driver model. Most common drivers have been migrated to 227 the new TTY subsystem, while others have not. The following 228 drivers have not yet been ported to the new TTY layer: 229 230 PCI/ISA: 231 cy, digi, rc, rp, sio 232 233 USB: 234 ubser, ucycom 235 236 Line disciplines: 237 ng_h4, ng_tty, ppp, sl, snp 238 239 Adding these drivers to your kernel configuration file shall 240 cause compilation to fail. 241 24220080818: 243 ntpd has been upgraded to 4.2.4p5. 244 24520080801: 246 OpenSSH has been upgraded to 5.1p1. 247 248 For many years, FreeBSD's version of OpenSSH preferred DSA 249 over RSA for host and user authentication keys. With this 250 upgrade, we've switched to the vendor's default of RSA over 251 DSA. This may cause upgraded clients to warn about unknown 252 host keys even for previously known hosts. Users should 253 follow the usual procedure for verifying host keys before 254 accepting the RSA key. 255 256 This can be circumvented by setting the "HostKeyAlgorithms" 257 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 258 command line. 259 260 Please note that the sequence of keys offered for 261 authentication has been changed as well. You may want to 262 specify IdentityFile in a different order to revert this 263 behavior. 264 26520080713: 266 The sio(4) driver has been removed from the i386 and amd64 267 kernel configuration files. This means uart(4) is now the 268 default serial port driver on those platforms as well. 269 270 To prevent collisions with the sio(4) driver, the uart(4) driver 271 uses different names for its device nodes. This means the 272 onboard serial port will now most likely be called "ttyu0" 273 instead of "ttyd0". You may need to reconfigure applications to 274 use the new device names. 275 276 When using the serial port as a boot console, be sure to update 277 /boot/device.hints and /etc/ttys before booting the new kernel. 278 If you forget to do so, you can still manually specify the hints 279 at the loader prompt: 280 281 set hint.uart.0.at="isa" 282 set hint.uart.0.port="0x3F8" 283 set hint.uart.0.flags="0x10" 284 set hint.uart.0.irq="4" 285 boot -s 286 28720080609: 288 The gpt(8) utility has been removed. Use gpart(8) to partition 289 disks instead. 290 29120080603: 292 The version that Linuxulator emulates was changed from 2.4.2 293 to 2.6.16. If you experience any problems with Linux binaries 294 please try to set sysctl compat.linux.osrelease to 2.4.2 and 295 if it fixes the problem contact emulation mailing list. 296 29720080525: 298 ISDN4BSD (I4B) was removed from the src tree. You may need to 299 update a your kernel configuration and remove relevant entries. 300 30120080509: 302 I have checked in code to support multiple routing tables. 303 See the man pages setfib(1) and setfib(2). 304 This is a hopefully backwards compatible version, 305 but to make use of it you need to compile your kernel 306 with options ROUTETABLES=2 (or more up to 16). 307 30820080420: 309 The 802.11 wireless support was redone to enable multi-bss 310 operation on devices that are capable. The underlying device 311 is no longer used directly but instead wlanX devices are 312 cloned with ifconfig. This requires changes to rc.conf files. 313 For example, change: 314 ifconfig_ath0="WPA DHCP" 315 to 316 wlans_ath0=wlan0 317 ifconfig_wlan0="WPA DHCP" 318 see rc.conf(5) for more details. In addition, mergemaster of 319 /etc/rc.d is highly recommended. Simultaneous update of userland 320 and kernel wouldn't hurt either. 321 322 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 323 modules were merged into the base wlan module. All references 324 to these modules (e.g. in kernel config files) must be removed. 325 32620080408: 327 psm(4) has gained write(2) support in native operation level. 328 Arbitrary commands can be written to /dev/psm%d and status can 329 be read back from it. Therefore, an application is responsible 330 for status validation and error recovery. It is a no-op in 331 other operation levels. 332 33320080312: 334 Support for KSE threading has been removed from the kernel. To 335 run legacy applications linked against KSE libmap.conf may 336 be used. The following libmap.conf may be used to ensure 337 compatibility with any prior release: 338 339 libpthread.so.1 libthr.so.1 340 libpthread.so.2 libthr.so.2 341 libkse.so.3 libthr.so.3 342 34320080301: 344 The layout of struct vmspace has changed. This affects libkvm 345 and any executables that link against libkvm and use the 346 kvm_getprocs() function. In particular, but not exclusively, 347 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 348 The effects are minimal, but it's advisable to upgrade world 349 nonetheless. 350 35120080229: 352 The latest em driver no longer has support in it for the 353 82575 adapter, this is now moved to the igb driver. The 354 split was done to make new features that are incompatible 355 with older hardware easier to do. 356 35720080220: 358 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 359 likewise the kernel option is now GEOM_LINUX_LVM. 360 36120080211: 362 The default NFS mount mode has changed from UDP to TCP for 363 increased reliability. If you rely on (insecurely) NFS 364 mounting across a firewall you may need to update your 365 firewall rules. 366 36720080208: 368 Belatedly note the addition of m_collapse for compacting 369 mbuf chains. 370 37120080126: 372 The fts(3) structures have been changed to use adequate 373 integer types for their members and so to be able to cope 374 with huge file trees. The old fts(3) ABI is preserved 375 through symbol versioning in libc, so third-party binaries 376 using fts(3) should still work, although they will not take 377 advantage of the extended types. At the same time, some 378 third-party software might fail to build after this change 379 due to unportable assumptions made in its source code about 380 fts(3) structure members. Such software should be fixed 381 by its vendor or, in the worst case, in the ports tree. 382 FreeBSD_version 800015 marks this change for the unlikely 383 case that a portable fix is impossible. 384 38520080123: 386 To upgrade to -current after this date, you must be running 387 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 388 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 389 39020071128: 391 The ADAPTIVE_GIANT kernel option has been retired because its 392 functionality is the default now. 393 39420071118: 395 The AT keyboard emulation of sunkbd(4) has been turned on 396 by default. In order to make the special symbols of the Sun 397 keyboards driven by sunkbd(4) work under X these now have 398 to be configured the same way as Sun USB keyboards driven 399 by ukbd(4) (which also does AT keyboard emulation), f.e.: 400 401 Option "XkbLayout" "us" 402 Option "XkbRules" "xorg" 403 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 404 40520071024: 406 It has been decided that it is desirable to provide ABI 407 backwards compatibility to the FreeBSD 4/5/6 versions of the 408 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 409 broken with the introduction of PCI domain support (see the 410 20070930 entry). Unfortunately, this required the ABI of 411 PCIOCGETCONF to be broken again in order to be able to 412 provide backwards compatibility to the old version of that 413 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 414 again. As for prominent ports this affects neither pciutils 415 nor xorg-server this time, the hal port needs to be rebuilt 416 however. 417 41820071020: 419 The misnamed kthread_create() and friends have been renamed 420 to kproc_create() etc. Many of the callers already 421 used kproc_start().. 422 I will return kthread_create() and friends in a while 423 with implementations that actually create threads, not procs. 424 Renaming corresponds with version 800002. 425 42620071010: 427 RELENG_7 branched. 428 42920071009: 430 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 431 WITHOUT_LIBTHR are set. 432 43320070930: 434 The PCI code has been made aware of PCI domains. This means that 435 the location strings as used by pciconf(8) etc are now in the 436 following format: pci<domain>:<bus>:<device>[:<function>]. It 437 also means that consumers of <sys/pciio.h> potentially need to 438 be recompiled; this includes the hal and xorg-server ports. 439 44020070928: 441 The caching daemon (cached) was renamed to nscd. nscd.conf 442 configuration file should be used instead of cached.conf and 443 nscd_enable, nscd_pidfile and nscd_flags options should be used 444 instead of cached_enable, cached_pidfile and cached_flags in 445 rc.conf. 446 44720070921: 448 The getfacl(1) utility now prints owning user and group name 449 instead of owning uid and gid in the three line comment header. 450 This is the same behavior as getfacl(1) on Solaris and Linux. 451 45220070704: 453 The new IPsec code is now compiled in using the IPSEC option. The 454 IPSEC option now requires "device crypto" be defined in your kernel 455 configuration. The FAST_IPSEC kernel option is now deprecated. 456 45720070702: 458 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 459 note the changed syntax - keep state is now on by default. Also 460 note the fact that ftp-proxy(8) has been changed from bottom up and 461 has been moved from libexec to usr/sbin. Changes in the ALTQ 462 handling also affect users of IPFW's ALTQ capabilities. 463 46420070701: 465 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 466 only IPsec supported by FreeBSD. The new IPsec stack 467 supports both IPv4 and IPv6. The kernel option will change 468 after the code changes have settled in. For now the kernel 469 option IPSEC is deprecated and FAST_IPSEC is the only option, that 470 will change after some settling time. 471 47220070701: 473 The wicontrol(8) utility has been removed from the base system. wi(4) 474 cards should be configured using ifconfig(8), see the man page for more 475 information. 476 47720070612: 478 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 479 instead of the nve(4) driver. Please update your configuration 480 accordingly. 481 48220070612: 483 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 484 database if it is missing or older than the aliases file. If 485 desired, set the new rc.conf option sendmail_rebuild_aliases 486 to "YES" to restore that functionality. 487 48820070612: 489 The IPv4 multicast socket code has been considerably modified, and 490 moved to the file sys/netinet/in_mcast.c. Initial support for the 491 RFC 3678 Source-Specific Multicast Socket API has been added to 492 the IPv4 network stack. 493 494 Strict multicast and broadcast reception is now the default for 495 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 496 has now been removed. 497 498 The RFC 1724 hack for interface selection has been removed; the use 499 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 500 been added to replace it. Consumers such as routed will soon be 501 updated to reflect this. 502 503 These changes affect users who are running routed(8) or rdisc(8) 504 from the FreeBSD base system on point-to-point or unnumbered 505 interfaces. 506 50720070610: 508 The net80211 layer has changed significantly and all wireless 509 drivers that depend on it need to be recompiled. Further these 510 changes require that any program that interacts with the wireless 511 support in the kernel be recompiled; this includes: ifconfig, 512 wpa_supplicant, hostapd, and wlanstats. Users must also, for 513 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 514 if they use modules for wireless support. These modules implement 515 scanning support for station and ap modes, respectively. Failure 516 to load the appropriate module before marking a wireless interface 517 up will result in a message to the console and the device not 518 operating properly. 519 52020070610: 521 The pam_nologin(8) module ceases to provide an authentication 522 function and starts providing an account management function. 523 Consequent changes to /etc/pam.d should be brought in using 524 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 525 need manual editing as follows. Locate this line (or similar): 526 527 auth required pam_nologin.so no_warn 528 529 and change it according to this example: 530 531 account required pam_nologin.so no_warn 532 533 That is, the first word needs to be changed from "auth" to 534 "account". The new line can be moved to the account section 535 within the file for clarity. Not updating pam.conf(5) files 536 will result in nologin(5) ignored by the respective services. 537 53820070529: 539 The ether_ioctl() function has been synchronized with ioctl(2) 540 and ifnet.if_ioctl. Due to that, the size of one of its arguments 541 has changed on 64-bit architectures. All kernel modules using 542 ether_ioctl() need to be rebuilt on such architectures. 543 54420070516: 545 Improved INCLUDE_CONFIG_FILE support has been introduced to the 546 config(8) utility. In order to take advantage of this new 547 functionality, you are expected to recompile and install 548 src/usr.sbin/config. If you don't rebuild config(8), and your 549 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 550 build will be broken because of a missing "kernconfstring" 551 symbol. 552 55320070513: 554 Symbol versioning is enabled by default. To disable it, use 555 option WITHOUT_SYMVER. It is not advisable to attempt to 556 disable symbol versioning once it is enabled; your installworld 557 will break because a symbol version-less libc will get installed 558 before the install tools. As a result, the old install tools, 559 which previously had symbol dependencies to FBSD_1.0, will fail 560 because the freshly installed libc will not have them. 561 562 The default threading library (providing "libpthread") has been 563 changed to libthr. If you wish to have libkse as your default, 564 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 565 56620070423: 567 The ABI breakage in sendmail(8)'s libmilter has been repaired 568 so it is no longer necessary to recompile mail filters (aka, 569 milters). If you recompiled mail filters after the 20070408 570 note, it is not necessary to recompile them again. 571 57220070417: 573 The new trunk(4) driver has been renamed to lagg(4) as it better 574 reflects its purpose. ifconfig will need to be recompiled. 575 57620070408: 577 sendmail(8) has been updated to version 8.14.1. Mail filters 578 (aka, milters) compiled against the libmilter included in the 579 base operating system should be recompiled. 580 58120070302: 582 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 583 In order to use them one must agree to the respective LICENSE in 584 share/doc/legal and define legal.intel_<name>.license_ack=1 via 585 loader.conf(5) or kenv(1). Make sure to deinstall the now 586 deprecated modules from the respective firmware ports. 587 58820070228: 589 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 590 were removed from FreeBSD's libc. These originally came from INRIA 591 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 592 deprecated in previous releases. 593 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 594 replace it as a more portable (and re-entrant) API. 595 59620070224: 597 To support interrupt filtering a modification to the newbus API 598 has occurred, ABI was broken and __FreeBSD_version was bumped 599 to 700031. Please make sure that your kernel and modules are in 600 sync. For more info: 601 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 602 60320070224: 604 The IPv6 multicast forwarding code may now be loaded into GENERIC 605 kernels by loading the ip_mroute.ko module. This is built into the 606 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 607 set; see src.conf(5) for more information. 608 60920070214: 610 The output of netstat -r has changed. Without -n, we now only 611 print a "network name" without the prefix length if the network 612 address and mask exactly match a Class A/B/C network, and an entry 613 exists in the nsswitch "networks" map. 614 With -n, we print the full unabbreviated CIDR network prefix in 615 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 616 This change is in preparation for changes such as equal-cost 617 multipath, and to more generally assist operational deployment 618 of FreeBSD as a modern IPv4 router. 619 62020070210: 621 PIM has been turned on by default in the IPv4 multicast 622 routing code. The kernel option 'PIM' has now been removed. 623 PIM is now built by default if option 'MROUTING' is specified. 624 It may now be loaded into GENERIC kernels by loading the 625 ip_mroute.ko module. 626 62720070207: 628 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 629 has been removed. Its functionality may be achieved by explicitly 630 configuring gif(4) interfaces and using the 'phyint' keyword in 631 mrouted.conf. 632 XORP does not support source-routed IPv4 multicast tunnels nor the 633 integrated IPIP tunneling, therefore it is not affected by this 634 change. The __FreeBSD_version macro has been bumped to 700030. 635 63620061221: 637 Support for PCI Message Signalled Interrupts has been 638 re-enabled in the bge driver, only for those chips which are 639 believed to support it properly. If there are any problems, 640 MSI can be disabled completely by setting the 641 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 642 in the loader. 643 64420061214: 645 Support for PCI Message Signalled Interrupts has been 646 disabled again in the bge driver. Many revisions of the 647 hardware fail to support it properly. Support can be 648 re-enabled by removing the #define of BGE_DISABLE_MSI in 649 "src/sys/dev/bge/if_bge.c". 650 65120061214: 652 Support for PCI Message Signalled Interrupts has been added 653 to the bge driver. If there are any problems, MSI can be 654 disabled completely by setting the 'hw.pci.enable_msi' and 655 'hw.pci.enable_msix' tunables to 0 in the loader. 656 65720061205: 658 The removal of several facets of the experimental Threading 659 system from the kernel means that the proc and thread structures 660 have changed quite a bit. I suggest all kernel modules that might 661 reference these structures be recompiled.. Especially the 662 linux module. 663 66420061126: 665 Sound infrastructure has been updated with various fixes and 666 improvements. Most of the changes are pretty much transparent, 667 with exceptions of followings: 668 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 669 moved to their own dev sysctl nodes, for example: 670 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 671 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 672 own chardev in the form of "dsp%d.<function>%d", where <function> 673 is p = playback, r = record and v = virtual, respectively. Users 674 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 675 This does not affect those who are using "/dev/dsp". 676 67720061122: 678 geom(4)'s gmirror(8) class metadata structure has been 679 rev'd from v3 to v4. If you update across this point and 680 your metadata is converted for you, you will not be easily 681 able to downgrade since the /boot/kernel.old/geom_mirror.ko 682 kernel module will be unable to read the v4 metadata. You 683 can resolve this by doing from the loader(8) prompt: 684 685 set vfs.root.mountfrom="ufs:/dev/XXX" 686 687 where XXX is the root slice of one of the disks that composed 688 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 689 the array the same way you built it originally. 690 69120061122: 692 The following binaries have been disconnected from the build: 693 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 694 and mount_std. The functionality of these programs has been 695 moved into the mount program. For example, to mount a devfs 696 filesystem, instead of using mount_devfs, use: "mount -t devfs". 697 This does not affect entries in /etc/fstab, since entries in 698 /etc/fstab are always processed with "mount -t fstype". 699 70020061113: 701 Support for PCI Message Signalled Interrupts on i386 and amd64 702 has been added to the kernel and various drivers will soon be 703 updated to use MSI when it is available. If there are any problems, 704 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 705 and 'hw.pci.enable_msix' tunables to 0 in the loader. 706 70720061110: 708 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 709 The lockmgr object layout has been changed as a result of having 710 a lock_object embedded in it. As a consequence all file system 711 kernel modules must be re-compiled. The mutex profiling man page 712 has not yet been updated to reflect this change. 713 71420061026: 715 KSE in the kernel has now been made optional and turned on by 716 default. Use 'nooption KSE' in your kernel config to turn it 717 off. All kernel modules *must* be recompiled after this change. 718 There-after, modules from a KSE kernel should be compatible with 719 modules from a NOKSE kernel due to the temporary padding fields 720 added to 'struct proc'. 721 72220060929: 723 mrouted and its utilities have been removed from the base system. 724 72520060927: 726 Some ioctl(2) command codes have changed. Full backward ABI 727 compatibility is provided if the "options COMPAT_FREEBSD6" is 728 present in the kernel configuration file. Make sure to add 729 this option to your kernel config file, or recompile X.Org 730 and the rest of ports; otherwise they may refuse to work. 731 73220060924: 733 tcpslice has been removed from the base system. 734 73520060913: 736 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 737 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 738 systat needs to be rebuilt. 739 74020060903: 741 libpcap updated to v0.9.4 and tcpdump to v3.9.4 742 74320060816: 744 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 745 for IPFIREWALL_FORWARD is now as it was before when it was first 746 committed and for years after. The behaviour is now ON. 747 74820060725: 749 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 750 Now it can decrypt files created from different architectures. 751 Unfortunately, it is no longer able to decrypt a cipher text 752 generated with an older version on 64 bit architectures. 753 If you have such a file, you need old utility to decrypt it. 754 75520060709: 756 The interface version of the i4b kernel part has changed. So 757 after updating the kernel sources and compiling a new kernel, 758 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 759 be rebuilt, and vice versa. 760 76120060627: 762 The XBOX kernel now defaults to the nfe(4) driver instead of 763 the nve(4) driver. Please update your configuration 764 accordingly. 765 76620060514: 767 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 768 PCnet family of NICs has been removed. The new le(4) driver serves 769 as an equivalent but cross-platform replacement with the pcn(4) 770 driver still providing performance-optimized support for the subset 771 of AMD Am79C971 PCnet-FAST and greater chips as before. 772 77320060511: 774 The machdep.* sysctls and the adjkerntz utility have been 775 modified a bit. The new adjkerntz utility uses the new 776 sysctl names and sysctlbyname() calls, so it may be impossible 777 to run an old /sbin/adjkerntz utility in single-user mode 778 with a new kernel. Replace the `adjkerntz -i' step before 779 `make installworld' with: 780 781 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 782 783 and proceed as usual with the rest of the installworld-stage 784 steps. Otherwise, you risk installing binaries with their 785 timestamp set several hours in the future, especially if 786 you are running with local time set to GMT+X hours. 787 78820060412: 789 The ip6fw utility has been removed. The behavior provided by 790 ip6fw has been in ipfw2 for a good while and the rc.d scripts 791 have been updated to deal with it. There are some rules that 792 might not migrate cleanly. Use rc.firewall6 as a template to 793 rewrite rules. 794 79520060428: 796 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 797 attachments have been removed. Make sure to configure scc(4) 798 on sparc64. Note also that by default puc(4) will use uart(4) 799 and not sio(4) for serial ports because interrupt handling has 800 been optimized for multi-port serial cards and only uart(4) 801 implements the interface to support it. 802 80320060330: 804 The scc(4) driver replaces puc(4) for Serial Communications 805 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 806 Z8530. On sparc64, it is advised to add scc(4) to the kernel 807 configuration to make sure that the serial ports remain 808 functional. 809 81020060317: 811 Most world/kernel related NO_* build options changed names. 812 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 813 after FreeBSD ports) and should be set in /etc/src.conf 814 (the src.conf(5) manpage is provided). Full backwards 815 compatibility is maintained for the time being though it's 816 highly recommended to start moving old options out of the 817 system-wide /etc/make.conf file into the new /etc/src.conf 818 while also properly renaming them. More conversions will 819 likely follow. Posting to current@: 820 821 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 822 82320060305: 824 The NETSMBCRYPTO kernel option has been retired because its 825 functionality is always included in NETSMB and smbfs.ko now. 826 82720060303: 828 The TDFX_LINUX kernel option was retired and replaced by the 829 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 830 kernel module. Loading it alone should suffice to get 3dfx support 831 for Linux apps because it will pull in 3dfx.ko and linux.ko through 832 its dependencies. 833 83420060204: 835 The 'audit' group was added to support the new auditing functionality 836 in the base system. Be sure to follow the directions for updating, 837 including the requirement to run mergemaster -p. 838 83920060201: 840 The kernel ABI to file system modules was changed on i386. 841 Please make sure that your kernel and modules are in sync. 842 84320060118: 844 This actually occured some time ago, but installing the kernel 845 now also installs a bunch of symbol files for the kernel modules. 846 This increases the size of /boot/kernel to about 67Mbytes. You 847 will need twice this if you will eventually back this up to kernel.old 848 on your next install. 849 If you have a shortage of room in your root partition, you should add 850 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 851 to your /etc/make.conf. 852 85320060113: 854 libc's malloc implementation has been replaced. This change has the 855 potential to uncover application bugs that previously went unnoticed. 856 See the malloc(3) manual page for more details. 857 85820060112: 859 The generic netgraph(4) cookie has been changed. If you upgrade 860 kernel passing this point, you also need to upgrade userland 861 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 862 86320060106: 864 si(4)'s device files now contain the unit number. 865 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 866 86720060106: 868 The kernel ABI was mostly destroyed due to a change in the size 869 of struct lock_object which is nested in other structures such 870 as mutexes which are nested in all sorts of other structures. 871 Make sure your kernel and modules are in sync. 872 87320051231: 874 The page coloring algorithm in the VM subsystem was converted 875 from tuning with kernel options to autotuning. Please remove 876 any PQ_* option except PQ_NOOPT from your kernel config. 877 87820051211: 879 The net80211-related tools in the tools/tools/ath directory 880 have been moved to tools/tools/net80211 and renamed with a 881 "wlan" prefix. Scripts that use them should be adjusted 882 accordingly. 883 88420051202: 885 Scripts in the local_startup directories (as defined in 886 /etc/defaults/rc.conf) that have the new rc.d semantics will 887 now be run as part of the base system rcorder. If there are 888 errors or problems with one of these local scripts, it could 889 cause boot problems. If you encounter such problems, boot in 890 single user mode, remove that script from the */rc.d directory. 891 Please report the problem to the port's maintainer, and the 892 freebsd-ports@freebsd.org mailing list. 893 89420051129: 895 The nodev mount option was deprecated in RELENG_6 (where it 896 was a no-op), and is now unsupported. If you have nodev or dev listed 897 in /etc/fstab, remove it, otherwise it will result in a mount error. 898 89920051129: 900 ABI between ipfw(4) and ipfw(8) has been changed. You need 901 to rebuild ipfw(8) when rebuilding kernel. 902 90320051108: 904 rp(4)'s device files now contain the unit number. 905 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 906 90720051029: 908 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 909 Its /etc/rc.conf.d configuration file has been `ppp' from 910 the beginning, and hence there is no need to touch it. 911 91220051014: 913 Now most modules get their build-time options from the kernel 914 configuration file. A few modules still have fixed options 915 due to their non-conformant implementation, but they will be 916 corrected eventually. You may need to review the options of 917 the modules in use, explicitly specify the non-default options 918 in the kernel configuration file, and rebuild the kernel and 919 modules afterwards. 920 92120051001: 922 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 923 to turn polling(4) on your interfaces. 924 92520050927: 926 The old bridge(4) implementation was retired. The new 927 if_bridge(4) serves as a full functional replacement. 928 92920050722: 930 The ai_addrlen of a struct addrinfo was changed to a socklen_t 931 to conform to POSIX-2001. This change broke an ABI 932 compatibility on 64 bit architecture. You have to recompile 933 userland programs that use getaddrinfo(3) on 64 bit 934 architecture. 935 93620050711: 937 RELENG_6 branched here. 938 93920050629: 940 The pccard_ifconfig rc.conf variable has been removed and a new 941 variable, ifconfig_DEFAULT has been introduced. Unlike 942 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 943 do not have ifconfig_ifn entries rather than just those in 944 removable_interfaces. 945 94620050616: 947 Some previous versions of PAM have permitted the use of 948 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 949 to third party PAM modules in /usr/local/lib. A change has been 950 made to require the use of absolute paths in order to avoid 951 ambiguity and dependence on library path configuration, which may 952 affect existing configurations. 953 95420050610: 955 Major changes to network interface API. All drivers must be 956 recompiled. Drivers not in the base system will need to be 957 updated to the new APIs. 958 95920050609: 960 Changes were made to kinfo_proc in sys/user.h. Please recompile 961 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 962 will not behave correctly. 963 964 The API and ABI for hwpmc(4) have changed with the addition 965 of sampling support. Please recompile lib/libpmc(3) and 966 usr.sbin/{pmcstat,pmccontrol}. 967 96820050606: 969 The OpenBSD dhclient was imported in place of the ISC dhclient 970 and the network interface configuration scripts were updated 971 accordingly. If you use DHCP to configure your interfaces, you 972 must now run devd. Also, DNS updating was lost so you will need 973 to find a workaround if you use this feature. 974 975 The '_dhcp' user was added to support the OpenBSD dhclient. Be 976 sure to run mergemaster -p (like you are supposed to do every time 977 anyway). 978 97920050605: 980 if_bridge was added to the tree. This has changed struct ifnet. 981 Please recompile userland and all network related modules. 982 98320050603: 984 The n_net of a struct netent was changed to an uint32_t, and 985 1st argument of getnetbyaddr() was changed to an uint32_t, to 986 conform to POSIX-2001. These changes broke an ABI 987 compatibility on 64 bit architecture. With these changes, 988 shlib major of libpcap was bumped. You have to recompile 989 userland programs that use getnetbyaddr(3), getnetbyname(3), 990 getnetent(3) and/or libpcap on 64 bit architecture. 991 99220050528: 993 Kernel parsing of extra options on '#!' first lines of shell 994 scripts has changed. Lines with multiple options likely will 995 fail after this date. For full details, please see 996 http://people.freebsd.org/~gad/Updating-20050528.txt 997 99820050503: 999 The packet filter (pf) code has been updated to OpenBSD 3.7 1000 Please note the changed anchor syntax and the fact that 1001 authpf(8) now needs a mounted fdescfs(5) to function. 1002 100320050415: 1004 The NO_MIXED_MODE kernel option has been removed from the i386 1005 amd64 platforms as its use has been superceded by the new local 1006 APIC timer code. Any kernel config files containing this option 1007 should be updated. 1008 100920050227: 1010 The on-disk format of LC_CTYPE files was changed to be machine 1011 independent. Please make sure NOT to use NO_CLEAN buildworld 1012 when crossing this point. Crossing this point also requires 1013 recompile or reinstall of all locale depended packages. 1014 101520050225: 1016 The ifi_epoch member of struct if_data has been changed to 1017 contain the uptime at which the interface was created or the 1018 statistics zeroed rather then the wall clock time because 1019 wallclock time may go backwards. This should have no impact 1020 unless an snmp implementation is using this value (I know of 1021 none at this point.) 1022 102320050224: 1024 The acpi_perf and acpi_throttle drivers are now part of the 1025 acpi(4) main module. They are no longer built separately. 1026 102720050223: 1028 The layout of struct image_params has changed. You have to 1029 recompile all compatibility modules (linux, svr4, etc) for use 1030 with the new kernel. 1031 103220050223: 1033 The p4tcc driver has been merged into cpufreq(4). This makes 1034 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1035 compile in "device cpufreq" to restore this functionality. 1036 103720050220: 1038 The responsibility of recomputing the file system summary of 1039 a SoftUpdates-enabled dirty volume has been transferred to the 1040 background fsck. A rebuild of fsck(8) utility is recommended 1041 if you have updated the kernel. 1042 1043 To get the old behavior (recompute file system summary at mount 1044 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1045 mounting the new volume. 1046 104720050206: 1048 The cpufreq import is complete. As part of this, the sysctls for 1049 acpi(4) throttling have been removed. The power_profile script 1050 has been updated, so you can use performance/economy_cpu_freq in 1051 rc.conf(5) to set AC on/offline cpu frequencies. 1052 105320050206: 1054 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1055 requires recompiling libnetgraph and userland netgraph utilities. 1056 105720050114: 1058 Support for abbreviated forms of a number of ipfw options is 1059 now deprecated. Warnings are printed to stderr indicating the 1060 correct full form when a match occurs. Some abbreviations may 1061 be supported at a later date based on user feedback. To be 1062 considered for support, abbreviations must be in use prior to 1063 this commit and unlikely to be confused with current key words. 1064 106520041221: 1066 By a popular demand, a lot of NOFOO options were renamed 1067 to NO_FOO (see bsd.compat.mk for a full list). The old 1068 spellings are still supported, but will cause annoying 1069 warnings on stderr. Make sure you upgrade properly (see 1070 the COMMON ITEMS: section later in this file). 1071 107220041219: 1073 Auto-loading of ancillary wlan modules such as wlan_wep has 1074 been temporarily disabled; you need to statically configure 1075 the modules you need into your kernel or explicitly load them 1076 prior to use. Specifically, if you intend to use WEP encryption 1077 with an 802.11 device load/configure wlan_wep; if you want to 1078 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1079 and wlan_xauth as required. 1080 108120041213: 1082 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1083 (``enable lqr''), older versions would revert to LCP ECHO mode on 1084 negotiation failure. Now, ``enable echo'' is required for this 1085 behaviour. The ppp version number has been bumped to 3.4.2 to 1086 reflect the change. 1087 108820041201: 1089 The wlan support has been updated to split the crypto support 1090 into separate modules. For static WEP you must configure the 1091 wlan_wep module in your system or build and install the module 1092 in place where it can be loaded (the kernel will auto-load 1093 the module when a wep key is configured). 1094 109520041201: 1096 The ath driver has been updated to split the tx rate control 1097 algorithm into a separate module. You need to include either 1098 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1099 110020041116: 1101 Support for systems with an 80386 CPU has been removed. Please 1102 use FreeBSD 5.x or earlier on systems with an 80386. 1103 110420041110: 1105 We have had a hack which would mount the root filesystem 1106 R/W if the device were named 'md*'. As part of the vnode 1107 work I'm doing I have had to remove this hack. People 1108 building systems which use preloaded MD root filesystems 1109 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1110 their /etc/rc scripts. 1111 111220041104: 1113 FreeBSD 5.3 shipped here. 1114 111520041102: 1116 The size of struct tcpcb has changed again due to the removal 1117 of RFC1644 T/TCP. You have to recompile userland programs that 1118 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1119 112020041022: 1121 The size of struct tcpcb has changed. You have to recompile 1122 userland programs that read kmem for tcp sockets directly 1123 (netstat, sockstat, etc.) 1124 112520041016: 1126 RELENG_5 branched here. For older entries, please see updating 1127 in the RELENG_5 branch. 1128 1129COMMON ITEMS: 1130 1131 General Notes 1132 ------------- 1133 Avoid using make -j when upgrading. From time to time in the 1134 past there have been problems using -j with buildworld and/or 1135 installworld. This is especially true when upgrading between 1136 "distant" versions (eg one that cross a major release boundary 1137 or several minor releases, or when several months have passed 1138 on the -current branch). 1139 1140 Sometimes, obscure build problems are the result of environment 1141 poisoning. This can happen because the make utility reads its 1142 environment when searching for values for global variables. 1143 To run your build attempts in an "environmental clean room", 1144 prefix all make commands with 'env -i '. See the env(1) manual 1145 page for more details. 1146 1147 When upgrading from one major version to another it is generally 1148 best to upgrade to the latest code in the currently installed branch 1149 first, then do an upgrade to the new branch. This is the best-tested 1150 upgrade path, and has the highest probability of being successful. 1151 Please try this approach before reporting problems with a major 1152 version upgrade. 1153 1154 To build a kernel 1155 ----------------- 1156 If you are updating from a prior version of FreeBSD (even one just 1157 a few days old), you should follow this procedure. It is the most 1158 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1159 1160 make kernel-toolchain 1161 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1162 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1163 1164 To test a kernel once 1165 --------------------- 1166 If you just want to boot a kernel once (because you are not sure 1167 if it works, or if you want to boot a known bad kernel to provide 1168 debugging information) run 1169 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1170 nextboot -k testkernel 1171 1172 To just build a kernel when you know that it won't mess you up 1173 -------------------------------------------------------------- 1174 This assumes you are already running a 5.X system. Replace 1175 ${arch} with the architecture of your machine (e.g. "i386", 1176 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1177 1178 cd src/sys/${arch}/conf 1179 config KERNEL_NAME_HERE 1180 cd ../compile/KERNEL_NAME_HERE 1181 make depend 1182 make 1183 make install 1184 1185 If this fails, go to the "To build a kernel" section. 1186 1187 To rebuild everything and install it on the current system. 1188 ----------------------------------------------------------- 1189 # Note: sometimes if you are running current you gotta do more than 1190 # is listed here if you are upgrading from a really old current. 1191 1192 <make sure you have good level 0 dumps> 1193 make buildworld 1194 make kernel KERNCONF=YOUR_KERNEL_HERE 1195 [1] 1196 <reboot in single user> [3] 1197 mergemaster -p [5] 1198 make installworld 1199 make delete-old 1200 mergemaster [4] 1201 <reboot> 1202 1203 1204 To cross-install current onto a separate partition 1205 -------------------------------------------------- 1206 # In this approach we use a separate partition to hold 1207 # current's root, 'usr', and 'var' directories. A partition 1208 # holding "/", "/usr" and "/var" should be about 2GB in 1209 # size. 1210 1211 <make sure you have good level 0 dumps> 1212 <boot into -stable> 1213 make buildworld 1214 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1215 <maybe newfs current's root partition> 1216 <mount current's root partition on directory ${CURRENT_ROOT}> 1217 make installworld DESTDIR=${CURRENT_ROOT} 1218 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1219 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1220 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1221 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1222 <reboot into current> 1223 <do a "native" rebuild/install as described in the previous section> 1224 <maybe install compatibility libraries from ports/misc/compat*> 1225 <reboot> 1226 1227 1228 To upgrade in-place from 5.x-stable to current 1229 ---------------------------------------------- 1230 <make sure you have good level 0 dumps> 1231 make buildworld [9] 1232 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1233 [1] 1234 <reboot in single user> [3] 1235 mergemaster -p [5] 1236 make installworld 1237 make delete-old 1238 mergemaster -i [4] 1239 <reboot> 1240 1241 Make sure that you've read the UPDATING file to understand the 1242 tweaks to various things you need. At this point in the life 1243 cycle of current, things change often and you are on your own 1244 to cope. The defaults can also change, so please read ALL of 1245 the UPDATING entries. 1246 1247 Also, if you are tracking -current, you must be subscribed to 1248 freebsd-current@freebsd.org. Make sure that before you update 1249 your sources that you have read and understood all the recent 1250 messages there. If in doubt, please track -stable which has 1251 much fewer pitfalls. 1252 1253 [1] If you have third party modules, such as vmware, you 1254 should disable them at this point so they don't crash your 1255 system on reboot. 1256 1257 [3] From the bootblocks, boot -s, and then do 1258 fsck -p 1259 mount -u / 1260 mount -a 1261 cd src 1262 adjkerntz -i # if CMOS is wall time 1263 Also, when doing a major release upgrade, it is required that 1264 you boot into single user mode to do the installworld. 1265 1266 [4] Note: This step is non-optional. Failure to do this step 1267 can result in a significant reduction in the functionality of the 1268 system. Attempting to do it by hand is not recommended and those 1269 that pursue this avenue should read this file carefully, as well 1270 as the archives of freebsd-current and freebsd-hackers mailing lists 1271 for potential gotchas. 1272 1273 [5] Usually this step is a noop. However, from time to time 1274 you may need to do this if you get unknown user in the following 1275 step. It never hurts to do it all the time. You may need to 1276 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1277 install) after the buildworld before this step if you last updated 1278 from current before 20020224 or from -stable before 20020408. 1279 1280 [8] In order to have a kernel that can run the 4.x binaries 1281 needed to do an installworld, you must include the COMPAT_FREEBSD4 1282 option in your kernel. Failure to do so may leave you with a system 1283 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1284 is required to run the 5.x binaries on more recent kernels. 1285 1286 Make sure that you merge any new devices from GENERIC since the 1287 last time you updated your kernel config file. 1288 1289 [9] When checking out sources, you must include the -P flag to have 1290 cvs prune empty directories. 1291 1292 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1293 "?=" instead of the "=" assignment operator, so that buildworld can 1294 override the CPUTYPE if it needs to. 1295 1296 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1297 not on the command line, or in /etc/make.conf. buildworld will 1298 warn if it is improperly defined. 1299FORMAT: 1300 1301This file contains a list, in reverse chronological order, of major 1302breakages in tracking -current. Not all things will be listed here, 1303and it only starts on October 16, 2004. Updating files can found in 1304previous releases if your system is older than this. 1305 1306Copyright information: 1307 1308Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1309 1310Redistribution, publication, translation and use, with or without 1311modification, in full or in part, in any form or format of this 1312document are permitted without further permission from the author. 1313 1314THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1315IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1316WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1317DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1318INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1319(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1320SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1321HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1322STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1323IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1324POSSIBILITY OF SUCH DAMAGE. 1325 1326If you find this document useful, and you want to, you may buy the 1327author a beer. 1328 1329Contact Warner Losh if you have any questions about your use of 1330this document. 1331 1332$FreeBSD: head/UPDATING 189770 2009-03-13 16:30:33Z rpaulo $ 1333