UPDATING revision 190100
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 2520090319: 26 The uscanner(4) driver has been removed from the kernel. This follows 27 Linux removing theirs in 2.6 and making libusb the default interface 28 (supported by sane). 29 3020090319: 31 The multicast forwarding code has been cleaned up. netstat(1) 32 only relies on KVM now for printing bandwidth upcall meters. 33 The IPv4 and IPv6 modules are split into ip_mroute_mod and 34 ip6_mroute_mod respectively. The config(5) options for statically 35 compiling this code remain the same, i.e. 'options MROUTING'. 36 3720090315: 38 Support for the IFF_NEEDSGIANT network interface flag has been 39 removed, which means that non-MPSAFE network device drivers are no 40 longer supported. In particular, if_ar, if_sr, and network device 41 drivers from the old (legacy) USB stack can no longer be built or 42 used. 43 4420090313: 45 POSIX.1 Native Language Support (NLS) has been enabled in libc and 46 a bunch of new language catalog files have also been added. 47 This means that some common libc messages are now localized and 48 they depend on the LC_MESSAGES environmental variable. 49 5020090313: 51 The k8temp(4) driver has been renamed to amdtemp(4) since 52 support for K10 and K11 CPU families was added. 53 5420090309: 55 IGMPv3 and Source-Specific Multicast (SSM) have been merged 56 to the IPv4 stack. VIMAGE hooks are in but not yet used. 57 58 For kernel developers, the most important changes are that the 59 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 60 and this lock has been downgraded to a non-recursive mutex. 61 62 Transport protocols (UDP, Raw IP) are now responsible for filtering 63 inbound multicast traffic according to group membership and source 64 filters. The imo_multicast_filter() KPI exists for this purpose. 65 Transports which do not use multicast (SCTP, TCP) already reject 66 multicast by default. Forwarding and receive performance may improve 67 as a mutex acquisition is no longer needed in the ip_input() 68 low-level input path. in_addmulti() and in_delmulti() are shimmed 69 to new KPIs which exist to support SSM in-kernel. 70 71 For application developers, it is recommended that loopback of 72 multicast datagrams be disabled for best performance, as this 73 will still cause the lock to be taken for each looped-back 74 datagram transmission. The net.inet.ip.mcast.loop sysctl may 75 be tuned to 0 to disable loopback by default; it defaults to 1 76 to preserve the existing behaviour. 77 78 For systems administrators, to obtain best performance with 79 multicast reception and multiple groups, it is always recommended 80 that a card with a suitably precise hash filter is used. Hash 81 collisions will still result in the lock being taken within the 82 transport protocol input path to check group membership. 83 84 If deploying FreeBSD in an environment with IGMP snooping switches, 85 it is recommended that the net.inet.igmp.sendlocal sysctl remain 86 enabled; this forces 224.0.0.0/24 group membership to be announced 87 via IGMP. 88 89 The size of 'struct igmpstat' has changed; netstat needs to be 90 recompiled to reflect this. 91 Bump __FreeBSD_version to 800070. 92 9320090309: 94 libusb20.so.1 is now installed as libusb.so.1 and the ports system 95 updated to use it. This requires a buildworld/installworld in order to 96 update the library and dependencies (usbconfig, etc). Its advisable to 97 rebuild all ports which uses libusb. More specific directions are given 98 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 99 libusb are no longer required and can be removed. 100 10120090302: 102 A workaround is committed to allow the creation of System V shared 103 memory segment of size > 2 GB on the 64-bit architectures. 104 Due to a limitation of the existing ABI, the shm_segsz member 105 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 106 wrong for large segments. Note that limits must be explicitely 107 raised to allow such segments to be created. 108 10920090301: 110 The layout of struct ifnet has changed, requiring a rebuild of all 111 network device driver modules. 112 11320090227: 114 The /dev handling for the new USB stack has changed, a 115 buildworld/installworld is required for libusb20. 116 11720090223: 118 The new USB2 stack has now been permanently moved in and all kernel and 119 module names reverted to their previous values (eg, usb, ehci, ohci, 120 ums, ...). The old usb stack can be compiled in by prefixing the name 121 with the letter 'o', the old usb modules have been removed. 122 Updating entry 20090216 for xorg and 20090215 for libmap may still 123 apply. 124 12520090217: 126 The rc.conf(5) option if_up_delay has been renamed to 127 defaultroute_delay to better reflect its purpose. If you have 128 customized this setting in /etc/rc.conf you need to update it to 129 use the new name. 130 13120090216: 132 xorg 7.4 wants to configure its input devices via hald which does not 133 yet work with USB2. If the keyboard/mouse does not work in xorg then 134 add 135 Option "AllowEmptyInput" "off" 136 to your ServerLayout section. This will cause X to use the configured 137 kbd and mouse sections from your xorg.conf. 138 13920090215: 140 The GENERIC kernels for all architectures now default to the new USB2 141 stack. No kernel config options or code have been removed so if a 142 problem arises please report it and optionally revert to the old USB 143 stack. If you are loading USB kernel modules or have a custom kernel 144 that includes GENERIC then ensure that usb names are also changed over, 145 eg uftdi -> usb2_serial_ftdi. 146 147 Older programs linked against the ports libusb 0.1 need to be 148 redirected to the new stack's libusb20. /etc/libmap.conf can 149 be used for this: 150 # Map old usb library to new one for usb2 stack 151 libusb-0.1.so.8 libusb20.so.1 152 15320090203: 154 The ichsmb(4) driver has been changed to require SMBus slave 155 addresses be left-justified (xxxxxxx0b) rather than right-justified. 156 All of the other SMBus controller drivers require left-justified 157 slave addresses, so this change makes all the drivers provide the 158 same interface. 159 16020090201: 161 INET6 statistics (struct ip6stat) was updated. 162 netstat(1) needs to be recompiled. 163 16420090119: 165 NTFS has been removed from GENERIC kernel on amd64 to match 166 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 167 will load ntfs.ko module automatically when NTFS support is 168 actually needed, unless ntfs.ko is not installed or security 169 level prohibits loading kernel modules. If either is the case, 170 "options NTFS" has to be added into kernel config. 171 17220090115: 173 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 174 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 175 800061. User space tools that rely on the size of struct tcpcb in 176 tcp_var.h (e.g. sockstat) need to be recompiled. 177 17820081225: 179 ng_tty(4) module updated to match the new TTY subsystem. 180 Due to API change, user-level applications must be updated. 181 New API support added to mpd5 CVS and expected to be present 182 in next mpd5.3 release. 183 18420081219: 185 With __FreeBSD_version 800060 the makefs tool is part of 186 the base system (it was a port). 187 18820081216: 189 The afdata and ifnet locks have been changed from mutexes to 190 rwlocks, network modules will need to be re-compiled. 191 19220081214: 193 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 194 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 195 The new code reduced struct rtentry{} by 16 bytes on 32-bit 196 architecture and 40 bytes on 64-bit architecture. The userland 197 applications "arp" and "ndp" have been updated accordingly. 198 The output from "netstat -r" shows only routing entries and 199 none of the L2 information. 200 20120081130: 202 __FreeBSD_version 800057 marks the switchover from the 203 binary ath hal to source code. Users must add the line: 204 205 options AH_SUPPORT_AR5416 206 207 to their kernel config files when specifying: 208 209 device ath_hal 210 211 The ath_hal module no longer exists; the code is now compiled 212 together with the driver in the ath module. It is now 213 possible to tailor chip support (i.e. reduce the set of chips 214 and thereby the code size); consult ath_hal(4) for details. 215 21620081121: 217 __FreeBSD_version 800054 adds memory barriers to 218 <machine/atomic.h>, new interfaces to ifnet to facilitate 219 multiple hardware transmit queues for cards that support 220 them, and a lock-less ring-buffer implementation to 221 enable drivers to more efficiently manage queueing of 222 packets. 223 22420081117: 225 A new version of ZFS (version 13) has been merged to -HEAD. 226 This version has zpool attribute "listsnapshots" off by 227 default, which means "zfs list" does not show snapshots, 228 and is the same as Solaris behavior. 229 23020081028: 231 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 232 23320081009: 234 The uhci, ohci, ehci and slhci USB Host controller drivers have 235 been put into separate modules. If you load the usb module 236 separately through loader.conf you will need to load the 237 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 238 controller add the following to loader.conf: 239 240 uhci_load="YES" 241 ehci_load="YES" 242 24320081009: 244 The ABI used by the PMC toolset has changed. Please keep 245 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 246 sync. 247 24820080820: 249 The TTY subsystem of the kernel has been replaced by a new 250 implementation, which provides better scalability and an 251 improved driver model. Most common drivers have been migrated to 252 the new TTY subsystem, while others have not. The following 253 drivers have not yet been ported to the new TTY layer: 254 255 PCI/ISA: 256 cy, digi, rc, rp, sio 257 258 USB: 259 ubser, ucycom 260 261 Line disciplines: 262 ng_h4, ng_tty, ppp, sl, snp 263 264 Adding these drivers to your kernel configuration file shall 265 cause compilation to fail. 266 26720080818: 268 ntpd has been upgraded to 4.2.4p5. 269 27020080801: 271 OpenSSH has been upgraded to 5.1p1. 272 273 For many years, FreeBSD's version of OpenSSH preferred DSA 274 over RSA for host and user authentication keys. With this 275 upgrade, we've switched to the vendor's default of RSA over 276 DSA. This may cause upgraded clients to warn about unknown 277 host keys even for previously known hosts. Users should 278 follow the usual procedure for verifying host keys before 279 accepting the RSA key. 280 281 This can be circumvented by setting the "HostKeyAlgorithms" 282 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 283 command line. 284 285 Please note that the sequence of keys offered for 286 authentication has been changed as well. You may want to 287 specify IdentityFile in a different order to revert this 288 behavior. 289 29020080713: 291 The sio(4) driver has been removed from the i386 and amd64 292 kernel configuration files. This means uart(4) is now the 293 default serial port driver on those platforms as well. 294 295 To prevent collisions with the sio(4) driver, the uart(4) driver 296 uses different names for its device nodes. This means the 297 onboard serial port will now most likely be called "ttyu0" 298 instead of "ttyd0". You may need to reconfigure applications to 299 use the new device names. 300 301 When using the serial port as a boot console, be sure to update 302 /boot/device.hints and /etc/ttys before booting the new kernel. 303 If you forget to do so, you can still manually specify the hints 304 at the loader prompt: 305 306 set hint.uart.0.at="isa" 307 set hint.uart.0.port="0x3F8" 308 set hint.uart.0.flags="0x10" 309 set hint.uart.0.irq="4" 310 boot -s 311 31220080609: 313 The gpt(8) utility has been removed. Use gpart(8) to partition 314 disks instead. 315 31620080603: 317 The version that Linuxulator emulates was changed from 2.4.2 318 to 2.6.16. If you experience any problems with Linux binaries 319 please try to set sysctl compat.linux.osrelease to 2.4.2 and 320 if it fixes the problem contact emulation mailing list. 321 32220080525: 323 ISDN4BSD (I4B) was removed from the src tree. You may need to 324 update a your kernel configuration and remove relevant entries. 325 32620080509: 327 I have checked in code to support multiple routing tables. 328 See the man pages setfib(1) and setfib(2). 329 This is a hopefully backwards compatible version, 330 but to make use of it you need to compile your kernel 331 with options ROUTETABLES=2 (or more up to 16). 332 33320080420: 334 The 802.11 wireless support was redone to enable multi-bss 335 operation on devices that are capable. The underlying device 336 is no longer used directly but instead wlanX devices are 337 cloned with ifconfig. This requires changes to rc.conf files. 338 For example, change: 339 ifconfig_ath0="WPA DHCP" 340 to 341 wlans_ath0=wlan0 342 ifconfig_wlan0="WPA DHCP" 343 see rc.conf(5) for more details. In addition, mergemaster of 344 /etc/rc.d is highly recommended. Simultaneous update of userland 345 and kernel wouldn't hurt either. 346 347 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 348 modules were merged into the base wlan module. All references 349 to these modules (e.g. in kernel config files) must be removed. 350 35120080408: 352 psm(4) has gained write(2) support in native operation level. 353 Arbitrary commands can be written to /dev/psm%d and status can 354 be read back from it. Therefore, an application is responsible 355 for status validation and error recovery. It is a no-op in 356 other operation levels. 357 35820080312: 359 Support for KSE threading has been removed from the kernel. To 360 run legacy applications linked against KSE libmap.conf may 361 be used. The following libmap.conf may be used to ensure 362 compatibility with any prior release: 363 364 libpthread.so.1 libthr.so.1 365 libpthread.so.2 libthr.so.2 366 libkse.so.3 libthr.so.3 367 36820080301: 369 The layout of struct vmspace has changed. This affects libkvm 370 and any executables that link against libkvm and use the 371 kvm_getprocs() function. In particular, but not exclusively, 372 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 373 The effects are minimal, but it's advisable to upgrade world 374 nonetheless. 375 37620080229: 377 The latest em driver no longer has support in it for the 378 82575 adapter, this is now moved to the igb driver. The 379 split was done to make new features that are incompatible 380 with older hardware easier to do. 381 38220080220: 383 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 384 likewise the kernel option is now GEOM_LINUX_LVM. 385 38620080211: 387 The default NFS mount mode has changed from UDP to TCP for 388 increased reliability. If you rely on (insecurely) NFS 389 mounting across a firewall you may need to update your 390 firewall rules. 391 39220080208: 393 Belatedly note the addition of m_collapse for compacting 394 mbuf chains. 395 39620080126: 397 The fts(3) structures have been changed to use adequate 398 integer types for their members and so to be able to cope 399 with huge file trees. The old fts(3) ABI is preserved 400 through symbol versioning in libc, so third-party binaries 401 using fts(3) should still work, although they will not take 402 advantage of the extended types. At the same time, some 403 third-party software might fail to build after this change 404 due to unportable assumptions made in its source code about 405 fts(3) structure members. Such software should be fixed 406 by its vendor or, in the worst case, in the ports tree. 407 FreeBSD_version 800015 marks this change for the unlikely 408 case that a portable fix is impossible. 409 41020080123: 411 To upgrade to -current after this date, you must be running 412 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 413 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 414 41520071128: 416 The ADAPTIVE_GIANT kernel option has been retired because its 417 functionality is the default now. 418 41920071118: 420 The AT keyboard emulation of sunkbd(4) has been turned on 421 by default. In order to make the special symbols of the Sun 422 keyboards driven by sunkbd(4) work under X these now have 423 to be configured the same way as Sun USB keyboards driven 424 by ukbd(4) (which also does AT keyboard emulation), f.e.: 425 426 Option "XkbLayout" "us" 427 Option "XkbRules" "xorg" 428 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 429 43020071024: 431 It has been decided that it is desirable to provide ABI 432 backwards compatibility to the FreeBSD 4/5/6 versions of the 433 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 434 broken with the introduction of PCI domain support (see the 435 20070930 entry). Unfortunately, this required the ABI of 436 PCIOCGETCONF to be broken again in order to be able to 437 provide backwards compatibility to the old version of that 438 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 439 again. As for prominent ports this affects neither pciutils 440 nor xorg-server this time, the hal port needs to be rebuilt 441 however. 442 44320071020: 444 The misnamed kthread_create() and friends have been renamed 445 to kproc_create() etc. Many of the callers already 446 used kproc_start().. 447 I will return kthread_create() and friends in a while 448 with implementations that actually create threads, not procs. 449 Renaming corresponds with version 800002. 450 45120071010: 452 RELENG_7 branched. 453 45420071009: 455 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 456 WITHOUT_LIBTHR are set. 457 45820070930: 459 The PCI code has been made aware of PCI domains. This means that 460 the location strings as used by pciconf(8) etc are now in the 461 following format: pci<domain>:<bus>:<device>[:<function>]. It 462 also means that consumers of <sys/pciio.h> potentially need to 463 be recompiled; this includes the hal and xorg-server ports. 464 46520070928: 466 The caching daemon (cached) was renamed to nscd. nscd.conf 467 configuration file should be used instead of cached.conf and 468 nscd_enable, nscd_pidfile and nscd_flags options should be used 469 instead of cached_enable, cached_pidfile and cached_flags in 470 rc.conf. 471 47220070921: 473 The getfacl(1) utility now prints owning user and group name 474 instead of owning uid and gid in the three line comment header. 475 This is the same behavior as getfacl(1) on Solaris and Linux. 476 47720070704: 478 The new IPsec code is now compiled in using the IPSEC option. The 479 IPSEC option now requires "device crypto" be defined in your kernel 480 configuration. The FAST_IPSEC kernel option is now deprecated. 481 48220070702: 483 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 484 note the changed syntax - keep state is now on by default. Also 485 note the fact that ftp-proxy(8) has been changed from bottom up and 486 has been moved from libexec to usr/sbin. Changes in the ALTQ 487 handling also affect users of IPFW's ALTQ capabilities. 488 48920070701: 490 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 491 only IPsec supported by FreeBSD. The new IPsec stack 492 supports both IPv4 and IPv6. The kernel option will change 493 after the code changes have settled in. For now the kernel 494 option IPSEC is deprecated and FAST_IPSEC is the only option, that 495 will change after some settling time. 496 49720070701: 498 The wicontrol(8) utility has been removed from the base system. wi(4) 499 cards should be configured using ifconfig(8), see the man page for more 500 information. 501 50220070612: 503 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 504 instead of the nve(4) driver. Please update your configuration 505 accordingly. 506 50720070612: 508 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 509 database if it is missing or older than the aliases file. If 510 desired, set the new rc.conf option sendmail_rebuild_aliases 511 to "YES" to restore that functionality. 512 51320070612: 514 The IPv4 multicast socket code has been considerably modified, and 515 moved to the file sys/netinet/in_mcast.c. Initial support for the 516 RFC 3678 Source-Specific Multicast Socket API has been added to 517 the IPv4 network stack. 518 519 Strict multicast and broadcast reception is now the default for 520 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 521 has now been removed. 522 523 The RFC 1724 hack for interface selection has been removed; the use 524 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 525 been added to replace it. Consumers such as routed will soon be 526 updated to reflect this. 527 528 These changes affect users who are running routed(8) or rdisc(8) 529 from the FreeBSD base system on point-to-point or unnumbered 530 interfaces. 531 53220070610: 533 The net80211 layer has changed significantly and all wireless 534 drivers that depend on it need to be recompiled. Further these 535 changes require that any program that interacts with the wireless 536 support in the kernel be recompiled; this includes: ifconfig, 537 wpa_supplicant, hostapd, and wlanstats. Users must also, for 538 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 539 if they use modules for wireless support. These modules implement 540 scanning support for station and ap modes, respectively. Failure 541 to load the appropriate module before marking a wireless interface 542 up will result in a message to the console and the device not 543 operating properly. 544 54520070610: 546 The pam_nologin(8) module ceases to provide an authentication 547 function and starts providing an account management function. 548 Consequent changes to /etc/pam.d should be brought in using 549 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 550 need manual editing as follows. Locate this line (or similar): 551 552 auth required pam_nologin.so no_warn 553 554 and change it according to this example: 555 556 account required pam_nologin.so no_warn 557 558 That is, the first word needs to be changed from "auth" to 559 "account". The new line can be moved to the account section 560 within the file for clarity. Not updating pam.conf(5) files 561 will result in nologin(5) ignored by the respective services. 562 56320070529: 564 The ether_ioctl() function has been synchronized with ioctl(2) 565 and ifnet.if_ioctl. Due to that, the size of one of its arguments 566 has changed on 64-bit architectures. All kernel modules using 567 ether_ioctl() need to be rebuilt on such architectures. 568 56920070516: 570 Improved INCLUDE_CONFIG_FILE support has been introduced to the 571 config(8) utility. In order to take advantage of this new 572 functionality, you are expected to recompile and install 573 src/usr.sbin/config. If you don't rebuild config(8), and your 574 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 575 build will be broken because of a missing "kernconfstring" 576 symbol. 577 57820070513: 579 Symbol versioning is enabled by default. To disable it, use 580 option WITHOUT_SYMVER. It is not advisable to attempt to 581 disable symbol versioning once it is enabled; your installworld 582 will break because a symbol version-less libc will get installed 583 before the install tools. As a result, the old install tools, 584 which previously had symbol dependencies to FBSD_1.0, will fail 585 because the freshly installed libc will not have them. 586 587 The default threading library (providing "libpthread") has been 588 changed to libthr. If you wish to have libkse as your default, 589 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 590 59120070423: 592 The ABI breakage in sendmail(8)'s libmilter has been repaired 593 so it is no longer necessary to recompile mail filters (aka, 594 milters). If you recompiled mail filters after the 20070408 595 note, it is not necessary to recompile them again. 596 59720070417: 598 The new trunk(4) driver has been renamed to lagg(4) as it better 599 reflects its purpose. ifconfig will need to be recompiled. 600 60120070408: 602 sendmail(8) has been updated to version 8.14.1. Mail filters 603 (aka, milters) compiled against the libmilter included in the 604 base operating system should be recompiled. 605 60620070302: 607 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 608 In order to use them one must agree to the respective LICENSE in 609 share/doc/legal and define legal.intel_<name>.license_ack=1 via 610 loader.conf(5) or kenv(1). Make sure to deinstall the now 611 deprecated modules from the respective firmware ports. 612 61320070228: 614 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 615 were removed from FreeBSD's libc. These originally came from INRIA 616 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 617 deprecated in previous releases. 618 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 619 replace it as a more portable (and re-entrant) API. 620 62120070224: 622 To support interrupt filtering a modification to the newbus API 623 has occurred, ABI was broken and __FreeBSD_version was bumped 624 to 700031. Please make sure that your kernel and modules are in 625 sync. For more info: 626 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 627 62820070224: 629 The IPv6 multicast forwarding code may now be loaded into GENERIC 630 kernels by loading the ip_mroute.ko module. This is built into the 631 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 632 set; see src.conf(5) for more information. 633 63420070214: 635 The output of netstat -r has changed. Without -n, we now only 636 print a "network name" without the prefix length if the network 637 address and mask exactly match a Class A/B/C network, and an entry 638 exists in the nsswitch "networks" map. 639 With -n, we print the full unabbreviated CIDR network prefix in 640 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 641 This change is in preparation for changes such as equal-cost 642 multipath, and to more generally assist operational deployment 643 of FreeBSD as a modern IPv4 router. 644 64520070210: 646 PIM has been turned on by default in the IPv4 multicast 647 routing code. The kernel option 'PIM' has now been removed. 648 PIM is now built by default if option 'MROUTING' is specified. 649 It may now be loaded into GENERIC kernels by loading the 650 ip_mroute.ko module. 651 65220070207: 653 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 654 has been removed. Its functionality may be achieved by explicitly 655 configuring gif(4) interfaces and using the 'phyint' keyword in 656 mrouted.conf. 657 XORP does not support source-routed IPv4 multicast tunnels nor the 658 integrated IPIP tunneling, therefore it is not affected by this 659 change. The __FreeBSD_version macro has been bumped to 700030. 660 66120061221: 662 Support for PCI Message Signalled Interrupts has been 663 re-enabled in the bge driver, only for those chips which are 664 believed to support it properly. If there are any problems, 665 MSI can be disabled completely by setting the 666 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 667 in the loader. 668 66920061214: 670 Support for PCI Message Signalled Interrupts has been 671 disabled again in the bge driver. Many revisions of the 672 hardware fail to support it properly. Support can be 673 re-enabled by removing the #define of BGE_DISABLE_MSI in 674 "src/sys/dev/bge/if_bge.c". 675 67620061214: 677 Support for PCI Message Signalled Interrupts has been added 678 to the bge driver. If there are any problems, MSI can be 679 disabled completely by setting the 'hw.pci.enable_msi' and 680 'hw.pci.enable_msix' tunables to 0 in the loader. 681 68220061205: 683 The removal of several facets of the experimental Threading 684 system from the kernel means that the proc and thread structures 685 have changed quite a bit. I suggest all kernel modules that might 686 reference these structures be recompiled.. Especially the 687 linux module. 688 68920061126: 690 Sound infrastructure has been updated with various fixes and 691 improvements. Most of the changes are pretty much transparent, 692 with exceptions of followings: 693 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 694 moved to their own dev sysctl nodes, for example: 695 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 696 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 697 own chardev in the form of "dsp%d.<function>%d", where <function> 698 is p = playback, r = record and v = virtual, respectively. Users 699 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 700 This does not affect those who are using "/dev/dsp". 701 70220061122: 703 geom(4)'s gmirror(8) class metadata structure has been 704 rev'd from v3 to v4. If you update across this point and 705 your metadata is converted for you, you will not be easily 706 able to downgrade since the /boot/kernel.old/geom_mirror.ko 707 kernel module will be unable to read the v4 metadata. You 708 can resolve this by doing from the loader(8) prompt: 709 710 set vfs.root.mountfrom="ufs:/dev/XXX" 711 712 where XXX is the root slice of one of the disks that composed 713 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 714 the array the same way you built it originally. 715 71620061122: 717 The following binaries have been disconnected from the build: 718 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 719 and mount_std. The functionality of these programs has been 720 moved into the mount program. For example, to mount a devfs 721 filesystem, instead of using mount_devfs, use: "mount -t devfs". 722 This does not affect entries in /etc/fstab, since entries in 723 /etc/fstab are always processed with "mount -t fstype". 724 72520061113: 726 Support for PCI Message Signalled Interrupts on i386 and amd64 727 has been added to the kernel and various drivers will soon be 728 updated to use MSI when it is available. If there are any problems, 729 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 730 and 'hw.pci.enable_msix' tunables to 0 in the loader. 731 73220061110: 733 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 734 The lockmgr object layout has been changed as a result of having 735 a lock_object embedded in it. As a consequence all file system 736 kernel modules must be re-compiled. The mutex profiling man page 737 has not yet been updated to reflect this change. 738 73920061026: 740 KSE in the kernel has now been made optional and turned on by 741 default. Use 'nooption KSE' in your kernel config to turn it 742 off. All kernel modules *must* be recompiled after this change. 743 There-after, modules from a KSE kernel should be compatible with 744 modules from a NOKSE kernel due to the temporary padding fields 745 added to 'struct proc'. 746 74720060929: 748 mrouted and its utilities have been removed from the base system. 749 75020060927: 751 Some ioctl(2) command codes have changed. Full backward ABI 752 compatibility is provided if the "options COMPAT_FREEBSD6" is 753 present in the kernel configuration file. Make sure to add 754 this option to your kernel config file, or recompile X.Org 755 and the rest of ports; otherwise they may refuse to work. 756 75720060924: 758 tcpslice has been removed from the base system. 759 76020060913: 761 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 762 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 763 systat needs to be rebuilt. 764 76520060903: 766 libpcap updated to v0.9.4 and tcpdump to v3.9.4 767 76820060816: 769 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 770 for IPFIREWALL_FORWARD is now as it was before when it was first 771 committed and for years after. The behaviour is now ON. 772 77320060725: 774 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 775 Now it can decrypt files created from different architectures. 776 Unfortunately, it is no longer able to decrypt a cipher text 777 generated with an older version on 64 bit architectures. 778 If you have such a file, you need old utility to decrypt it. 779 78020060709: 781 The interface version of the i4b kernel part has changed. So 782 after updating the kernel sources and compiling a new kernel, 783 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 784 be rebuilt, and vice versa. 785 78620060627: 787 The XBOX kernel now defaults to the nfe(4) driver instead of 788 the nve(4) driver. Please update your configuration 789 accordingly. 790 79120060514: 792 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 793 PCnet family of NICs has been removed. The new le(4) driver serves 794 as an equivalent but cross-platform replacement with the pcn(4) 795 driver still providing performance-optimized support for the subset 796 of AMD Am79C971 PCnet-FAST and greater chips as before. 797 79820060511: 799 The machdep.* sysctls and the adjkerntz utility have been 800 modified a bit. The new adjkerntz utility uses the new 801 sysctl names and sysctlbyname() calls, so it may be impossible 802 to run an old /sbin/adjkerntz utility in single-user mode 803 with a new kernel. Replace the `adjkerntz -i' step before 804 `make installworld' with: 805 806 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 807 808 and proceed as usual with the rest of the installworld-stage 809 steps. Otherwise, you risk installing binaries with their 810 timestamp set several hours in the future, especially if 811 you are running with local time set to GMT+X hours. 812 81320060412: 814 The ip6fw utility has been removed. The behavior provided by 815 ip6fw has been in ipfw2 for a good while and the rc.d scripts 816 have been updated to deal with it. There are some rules that 817 might not migrate cleanly. Use rc.firewall6 as a template to 818 rewrite rules. 819 82020060428: 821 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 822 attachments have been removed. Make sure to configure scc(4) 823 on sparc64. Note also that by default puc(4) will use uart(4) 824 and not sio(4) for serial ports because interrupt handling has 825 been optimized for multi-port serial cards and only uart(4) 826 implements the interface to support it. 827 82820060330: 829 The scc(4) driver replaces puc(4) for Serial Communications 830 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 831 Z8530. On sparc64, it is advised to add scc(4) to the kernel 832 configuration to make sure that the serial ports remain 833 functional. 834 83520060317: 836 Most world/kernel related NO_* build options changed names. 837 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 838 after FreeBSD ports) and should be set in /etc/src.conf 839 (the src.conf(5) manpage is provided). Full backwards 840 compatibility is maintained for the time being though it's 841 highly recommended to start moving old options out of the 842 system-wide /etc/make.conf file into the new /etc/src.conf 843 while also properly renaming them. More conversions will 844 likely follow. Posting to current@: 845 846 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 847 84820060305: 849 The NETSMBCRYPTO kernel option has been retired because its 850 functionality is always included in NETSMB and smbfs.ko now. 851 85220060303: 853 The TDFX_LINUX kernel option was retired and replaced by the 854 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 855 kernel module. Loading it alone should suffice to get 3dfx support 856 for Linux apps because it will pull in 3dfx.ko and linux.ko through 857 its dependencies. 858 85920060204: 860 The 'audit' group was added to support the new auditing functionality 861 in the base system. Be sure to follow the directions for updating, 862 including the requirement to run mergemaster -p. 863 86420060201: 865 The kernel ABI to file system modules was changed on i386. 866 Please make sure that your kernel and modules are in sync. 867 86820060118: 869 This actually occured some time ago, but installing the kernel 870 now also installs a bunch of symbol files for the kernel modules. 871 This increases the size of /boot/kernel to about 67Mbytes. You 872 will need twice this if you will eventually back this up to kernel.old 873 on your next install. 874 If you have a shortage of room in your root partition, you should add 875 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 876 to your /etc/make.conf. 877 87820060113: 879 libc's malloc implementation has been replaced. This change has the 880 potential to uncover application bugs that previously went unnoticed. 881 See the malloc(3) manual page for more details. 882 88320060112: 884 The generic netgraph(4) cookie has been changed. If you upgrade 885 kernel passing this point, you also need to upgrade userland 886 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 887 88820060106: 889 si(4)'s device files now contain the unit number. 890 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 891 89220060106: 893 The kernel ABI was mostly destroyed due to a change in the size 894 of struct lock_object which is nested in other structures such 895 as mutexes which are nested in all sorts of other structures. 896 Make sure your kernel and modules are in sync. 897 89820051231: 899 The page coloring algorithm in the VM subsystem was converted 900 from tuning with kernel options to autotuning. Please remove 901 any PQ_* option except PQ_NOOPT from your kernel config. 902 90320051211: 904 The net80211-related tools in the tools/tools/ath directory 905 have been moved to tools/tools/net80211 and renamed with a 906 "wlan" prefix. Scripts that use them should be adjusted 907 accordingly. 908 90920051202: 910 Scripts in the local_startup directories (as defined in 911 /etc/defaults/rc.conf) that have the new rc.d semantics will 912 now be run as part of the base system rcorder. If there are 913 errors or problems with one of these local scripts, it could 914 cause boot problems. If you encounter such problems, boot in 915 single user mode, remove that script from the */rc.d directory. 916 Please report the problem to the port's maintainer, and the 917 freebsd-ports@freebsd.org mailing list. 918 91920051129: 920 The nodev mount option was deprecated in RELENG_6 (where it 921 was a no-op), and is now unsupported. If you have nodev or dev listed 922 in /etc/fstab, remove it, otherwise it will result in a mount error. 923 92420051129: 925 ABI between ipfw(4) and ipfw(8) has been changed. You need 926 to rebuild ipfw(8) when rebuilding kernel. 927 92820051108: 929 rp(4)'s device files now contain the unit number. 930 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 931 93220051029: 933 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 934 Its /etc/rc.conf.d configuration file has been `ppp' from 935 the beginning, and hence there is no need to touch it. 936 93720051014: 938 Now most modules get their build-time options from the kernel 939 configuration file. A few modules still have fixed options 940 due to their non-conformant implementation, but they will be 941 corrected eventually. You may need to review the options of 942 the modules in use, explicitly specify the non-default options 943 in the kernel configuration file, and rebuild the kernel and 944 modules afterwards. 945 94620051001: 947 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 948 to turn polling(4) on your interfaces. 949 95020050927: 951 The old bridge(4) implementation was retired. The new 952 if_bridge(4) serves as a full functional replacement. 953 95420050722: 955 The ai_addrlen of a struct addrinfo was changed to a socklen_t 956 to conform to POSIX-2001. This change broke an ABI 957 compatibility on 64 bit architecture. You have to recompile 958 userland programs that use getaddrinfo(3) on 64 bit 959 architecture. 960 96120050711: 962 RELENG_6 branched here. 963 96420050629: 965 The pccard_ifconfig rc.conf variable has been removed and a new 966 variable, ifconfig_DEFAULT has been introduced. Unlike 967 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 968 do not have ifconfig_ifn entries rather than just those in 969 removable_interfaces. 970 97120050616: 972 Some previous versions of PAM have permitted the use of 973 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 974 to third party PAM modules in /usr/local/lib. A change has been 975 made to require the use of absolute paths in order to avoid 976 ambiguity and dependence on library path configuration, which may 977 affect existing configurations. 978 97920050610: 980 Major changes to network interface API. All drivers must be 981 recompiled. Drivers not in the base system will need to be 982 updated to the new APIs. 983 98420050609: 985 Changes were made to kinfo_proc in sys/user.h. Please recompile 986 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 987 will not behave correctly. 988 989 The API and ABI for hwpmc(4) have changed with the addition 990 of sampling support. Please recompile lib/libpmc(3) and 991 usr.sbin/{pmcstat,pmccontrol}. 992 99320050606: 994 The OpenBSD dhclient was imported in place of the ISC dhclient 995 and the network interface configuration scripts were updated 996 accordingly. If you use DHCP to configure your interfaces, you 997 must now run devd. Also, DNS updating was lost so you will need 998 to find a workaround if you use this feature. 999 1000 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1001 sure to run mergemaster -p (like you are supposed to do every time 1002 anyway). 1003 100420050605: 1005 if_bridge was added to the tree. This has changed struct ifnet. 1006 Please recompile userland and all network related modules. 1007 100820050603: 1009 The n_net of a struct netent was changed to an uint32_t, and 1010 1st argument of getnetbyaddr() was changed to an uint32_t, to 1011 conform to POSIX-2001. These changes broke an ABI 1012 compatibility on 64 bit architecture. With these changes, 1013 shlib major of libpcap was bumped. You have to recompile 1014 userland programs that use getnetbyaddr(3), getnetbyname(3), 1015 getnetent(3) and/or libpcap on 64 bit architecture. 1016 101720050528: 1018 Kernel parsing of extra options on '#!' first lines of shell 1019 scripts has changed. Lines with multiple options likely will 1020 fail after this date. For full details, please see 1021 http://people.freebsd.org/~gad/Updating-20050528.txt 1022 102320050503: 1024 The packet filter (pf) code has been updated to OpenBSD 3.7 1025 Please note the changed anchor syntax and the fact that 1026 authpf(8) now needs a mounted fdescfs(5) to function. 1027 102820050415: 1029 The NO_MIXED_MODE kernel option has been removed from the i386 1030 amd64 platforms as its use has been superceded by the new local 1031 APIC timer code. Any kernel config files containing this option 1032 should be updated. 1033 103420050227: 1035 The on-disk format of LC_CTYPE files was changed to be machine 1036 independent. Please make sure NOT to use NO_CLEAN buildworld 1037 when crossing this point. Crossing this point also requires 1038 recompile or reinstall of all locale depended packages. 1039 104020050225: 1041 The ifi_epoch member of struct if_data has been changed to 1042 contain the uptime at which the interface was created or the 1043 statistics zeroed rather then the wall clock time because 1044 wallclock time may go backwards. This should have no impact 1045 unless an snmp implementation is using this value (I know of 1046 none at this point.) 1047 104820050224: 1049 The acpi_perf and acpi_throttle drivers are now part of the 1050 acpi(4) main module. They are no longer built separately. 1051 105220050223: 1053 The layout of struct image_params has changed. You have to 1054 recompile all compatibility modules (linux, svr4, etc) for use 1055 with the new kernel. 1056 105720050223: 1058 The p4tcc driver has been merged into cpufreq(4). This makes 1059 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1060 compile in "device cpufreq" to restore this functionality. 1061 106220050220: 1063 The responsibility of recomputing the file system summary of 1064 a SoftUpdates-enabled dirty volume has been transferred to the 1065 background fsck. A rebuild of fsck(8) utility is recommended 1066 if you have updated the kernel. 1067 1068 To get the old behavior (recompute file system summary at mount 1069 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1070 mounting the new volume. 1071 107220050206: 1073 The cpufreq import is complete. As part of this, the sysctls for 1074 acpi(4) throttling have been removed. The power_profile script 1075 has been updated, so you can use performance/economy_cpu_freq in 1076 rc.conf(5) to set AC on/offline cpu frequencies. 1077 107820050206: 1079 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1080 requires recompiling libnetgraph and userland netgraph utilities. 1081 108220050114: 1083 Support for abbreviated forms of a number of ipfw options is 1084 now deprecated. Warnings are printed to stderr indicating the 1085 correct full form when a match occurs. Some abbreviations may 1086 be supported at a later date based on user feedback. To be 1087 considered for support, abbreviations must be in use prior to 1088 this commit and unlikely to be confused with current key words. 1089 109020041221: 1091 By a popular demand, a lot of NOFOO options were renamed 1092 to NO_FOO (see bsd.compat.mk for a full list). The old 1093 spellings are still supported, but will cause annoying 1094 warnings on stderr. Make sure you upgrade properly (see 1095 the COMMON ITEMS: section later in this file). 1096 109720041219: 1098 Auto-loading of ancillary wlan modules such as wlan_wep has 1099 been temporarily disabled; you need to statically configure 1100 the modules you need into your kernel or explicitly load them 1101 prior to use. Specifically, if you intend to use WEP encryption 1102 with an 802.11 device load/configure wlan_wep; if you want to 1103 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1104 and wlan_xauth as required. 1105 110620041213: 1107 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1108 (``enable lqr''), older versions would revert to LCP ECHO mode on 1109 negotiation failure. Now, ``enable echo'' is required for this 1110 behaviour. The ppp version number has been bumped to 3.4.2 to 1111 reflect the change. 1112 111320041201: 1114 The wlan support has been updated to split the crypto support 1115 into separate modules. For static WEP you must configure the 1116 wlan_wep module in your system or build and install the module 1117 in place where it can be loaded (the kernel will auto-load 1118 the module when a wep key is configured). 1119 112020041201: 1121 The ath driver has been updated to split the tx rate control 1122 algorithm into a separate module. You need to include either 1123 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1124 112520041116: 1126 Support for systems with an 80386 CPU has been removed. Please 1127 use FreeBSD 5.x or earlier on systems with an 80386. 1128 112920041110: 1130 We have had a hack which would mount the root filesystem 1131 R/W if the device were named 'md*'. As part of the vnode 1132 work I'm doing I have had to remove this hack. People 1133 building systems which use preloaded MD root filesystems 1134 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1135 their /etc/rc scripts. 1136 113720041104: 1138 FreeBSD 5.3 shipped here. 1139 114020041102: 1141 The size of struct tcpcb has changed again due to the removal 1142 of RFC1644 T/TCP. You have to recompile userland programs that 1143 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1144 114520041022: 1146 The size of struct tcpcb has changed. You have to recompile 1147 userland programs that read kmem for tcp sockets directly 1148 (netstat, sockstat, etc.) 1149 115020041016: 1151 RELENG_5 branched here. For older entries, please see updating 1152 in the RELENG_5 branch. 1153 1154COMMON ITEMS: 1155 1156 General Notes 1157 ------------- 1158 Avoid using make -j when upgrading. From time to time in the 1159 past there have been problems using -j with buildworld and/or 1160 installworld. This is especially true when upgrading between 1161 "distant" versions (eg one that cross a major release boundary 1162 or several minor releases, or when several months have passed 1163 on the -current branch). 1164 1165 Sometimes, obscure build problems are the result of environment 1166 poisoning. This can happen because the make utility reads its 1167 environment when searching for values for global variables. 1168 To run your build attempts in an "environmental clean room", 1169 prefix all make commands with 'env -i '. See the env(1) manual 1170 page for more details. 1171 1172 When upgrading from one major version to another it is generally 1173 best to upgrade to the latest code in the currently installed branch 1174 first, then do an upgrade to the new branch. This is the best-tested 1175 upgrade path, and has the highest probability of being successful. 1176 Please try this approach before reporting problems with a major 1177 version upgrade. 1178 1179 To build a kernel 1180 ----------------- 1181 If you are updating from a prior version of FreeBSD (even one just 1182 a few days old), you should follow this procedure. It is the most 1183 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1184 1185 make kernel-toolchain 1186 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1187 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1188 1189 To test a kernel once 1190 --------------------- 1191 If you just want to boot a kernel once (because you are not sure 1192 if it works, or if you want to boot a known bad kernel to provide 1193 debugging information) run 1194 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1195 nextboot -k testkernel 1196 1197 To just build a kernel when you know that it won't mess you up 1198 -------------------------------------------------------------- 1199 This assumes you are already running a 5.X system. Replace 1200 ${arch} with the architecture of your machine (e.g. "i386", 1201 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1202 1203 cd src/sys/${arch}/conf 1204 config KERNEL_NAME_HERE 1205 cd ../compile/KERNEL_NAME_HERE 1206 make depend 1207 make 1208 make install 1209 1210 If this fails, go to the "To build a kernel" section. 1211 1212 To rebuild everything and install it on the current system. 1213 ----------------------------------------------------------- 1214 # Note: sometimes if you are running current you gotta do more than 1215 # is listed here if you are upgrading from a really old current. 1216 1217 <make sure you have good level 0 dumps> 1218 make buildworld 1219 make kernel KERNCONF=YOUR_KERNEL_HERE 1220 [1] 1221 <reboot in single user> [3] 1222 mergemaster -p [5] 1223 make installworld 1224 make delete-old 1225 mergemaster [4] 1226 <reboot> 1227 1228 1229 To cross-install current onto a separate partition 1230 -------------------------------------------------- 1231 # In this approach we use a separate partition to hold 1232 # current's root, 'usr', and 'var' directories. A partition 1233 # holding "/", "/usr" and "/var" should be about 2GB in 1234 # size. 1235 1236 <make sure you have good level 0 dumps> 1237 <boot into -stable> 1238 make buildworld 1239 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1240 <maybe newfs current's root partition> 1241 <mount current's root partition on directory ${CURRENT_ROOT}> 1242 make installworld DESTDIR=${CURRENT_ROOT} 1243 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1244 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1245 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1246 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1247 <reboot into current> 1248 <do a "native" rebuild/install as described in the previous section> 1249 <maybe install compatibility libraries from ports/misc/compat*> 1250 <reboot> 1251 1252 1253 To upgrade in-place from 5.x-stable to current 1254 ---------------------------------------------- 1255 <make sure you have good level 0 dumps> 1256 make buildworld [9] 1257 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1258 [1] 1259 <reboot in single user> [3] 1260 mergemaster -p [5] 1261 make installworld 1262 make delete-old 1263 mergemaster -i [4] 1264 <reboot> 1265 1266 Make sure that you've read the UPDATING file to understand the 1267 tweaks to various things you need. At this point in the life 1268 cycle of current, things change often and you are on your own 1269 to cope. The defaults can also change, so please read ALL of 1270 the UPDATING entries. 1271 1272 Also, if you are tracking -current, you must be subscribed to 1273 freebsd-current@freebsd.org. Make sure that before you update 1274 your sources that you have read and understood all the recent 1275 messages there. If in doubt, please track -stable which has 1276 much fewer pitfalls. 1277 1278 [1] If you have third party modules, such as vmware, you 1279 should disable them at this point so they don't crash your 1280 system on reboot. 1281 1282 [3] From the bootblocks, boot -s, and then do 1283 fsck -p 1284 mount -u / 1285 mount -a 1286 cd src 1287 adjkerntz -i # if CMOS is wall time 1288 Also, when doing a major release upgrade, it is required that 1289 you boot into single user mode to do the installworld. 1290 1291 [4] Note: This step is non-optional. Failure to do this step 1292 can result in a significant reduction in the functionality of the 1293 system. Attempting to do it by hand is not recommended and those 1294 that pursue this avenue should read this file carefully, as well 1295 as the archives of freebsd-current and freebsd-hackers mailing lists 1296 for potential gotchas. 1297 1298 [5] Usually this step is a noop. However, from time to time 1299 you may need to do this if you get unknown user in the following 1300 step. It never hurts to do it all the time. You may need to 1301 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1302 install) after the buildworld before this step if you last updated 1303 from current before 20020224 or from -stable before 20020408. 1304 1305 [8] In order to have a kernel that can run the 4.x binaries 1306 needed to do an installworld, you must include the COMPAT_FREEBSD4 1307 option in your kernel. Failure to do so may leave you with a system 1308 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1309 is required to run the 5.x binaries on more recent kernels. 1310 1311 Make sure that you merge any new devices from GENERIC since the 1312 last time you updated your kernel config file. 1313 1314 [9] When checking out sources, you must include the -P flag to have 1315 cvs prune empty directories. 1316 1317 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1318 "?=" instead of the "=" assignment operator, so that buildworld can 1319 override the CPUTYPE if it needs to. 1320 1321 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1322 not on the command line, or in /etc/make.conf. buildworld will 1323 warn if it is improperly defined. 1324FORMAT: 1325 1326This file contains a list, in reverse chronological order, of major 1327breakages in tracking -current. Not all things will be listed here, 1328and it only starts on October 16, 2004. Updating files can found in 1329previous releases if your system is older than this. 1330 1331Copyright information: 1332 1333Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1334 1335Redistribution, publication, translation and use, with or without 1336modification, in full or in part, in any form or format of this 1337document are permitted without further permission from the author. 1338 1339THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1340IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1341WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1342DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1343INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1344(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1345SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1346HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1347STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1348IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1349POSSIBILITY OF SUCH DAMAGE. 1350 1351If you find this document useful, and you want to, you may buy the 1352author a beer. 1353 1354Contact Warner Losh if you have any questions about your use of 1355this document. 1356 1357$FreeBSD: head/UPDATING 190100 2009-03-19 20:33:26Z thompsa $ 1358