UPDATING revision 166549
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 7.x IS SLOW: 12 FreeBSD 7.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. 23 2420070207: 25 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 26 has been removed. Its functionality may be achieved by explicitly 27 configuring gif(4) interfaces and using the 'phyint' keyword in 28 mrouted.conf. 29 XORP does not support source-routed IPv4 multicast tunnels nor the 30 integrated IPIP tunneling, therefore it is not affected by this 31 change. The __FreeBSD_version macro has been bumped to 700030. 32 3320061221: 34 Support for PCI Message Signalled Interrupts has been 35 re-enabled in the bge driver, only for those chips which are 36 believed to support it properly. If there are any problems, 37 MSI can be disabled completely by setting the 38 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 39 in the loader. 40 4120061214: 42 Support for PCI Message Signalled Interrupts has been 43 disabled again in the bge driver. Many revisions of the 44 hardware fail to support it properly. Support can be 45 re-enabled by removing the #define of BGE_DISABLE_MSI in 46 "src/sys/dev/bge/if_bge.c". 47 4820061214: 49 Support for PCI Message Signalled Interrupts has been added 50 to the bge driver. If there are any problems, MSI can be 51 disabled completely by setting the 'hw.pci.enable_msi' and 52 'hw.pci.enable_msix' tunables to 0 in the loader. 53 5420061205: 55 The removal of several facets of the experimental Threading 56 system from the kernel means that the proc and thread structures 57 have changed quite a bit. I suggest all kernel modules that might 58 reference these structures be recompiled.. Especially the 59 linux module. 60 6120061126: 62 Sound infrastructure has been updated with various fixes and 63 improvements. Most of the changes are pretty much transparent, 64 with exceptions of followings: 65 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 66 moved to their own dev sysctl nodes, for example: 67 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 68 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 69 own chardev in the form of "dsp%d.<function>%d", where <function> 70 is p = playback, r = record and v = virtual, respectively. Users 71 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 72 This does not affect those who are using "/dev/dsp". 73 7420061122: 75 The following binaries have been disconnected from the build: 76 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 77 and mount_std. The functionality of these programs has been 78 moved into the mount program. For example, to mount a devfs 79 filesystem, instead of using mount_devfs, use: "mount -t devfs". 80 This does not affect entries in /etc/fstab, since entries in 81 /etc/fstab are always processed with "mount -t fstype". 82 8320061113: 84 Support for PCI Message Signalled Interrupts on i386 and amd64 85 has been added to the kernel and various drivers will soon be 86 updated to use MSI when it is available. If there are any problems, 87 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 88 and 'hw.pci.enable_msix' tunables to 0 in the loader. 89 9020061110: 91 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 92 The lockmgr object layout has been changed as a result of having 93 a lock_object embedded in it. As a consequence all file system 94 kernel modules must be re-compiled. The mutex profiling man page 95 has not yet been updated to reflect this change. 96 9720061026: 98 KSE in the kernel has now been made optional and turned on by 99 default. Use 'nooption KSE' in your kernel config to turn it 100 off. All kernel modules *must* be recompiled after this change. 101 There-after, modules from a KSE kernel should be compatible with 102 modules from a NOKSE kernel due to the temporary padding fields 103 added to 'struct proc'. 104 10520060929: 106 mrouted and its utilities have been removed from the base system. 107 10820060927: 109 Some ioctl(2) command codes have changed. Full backward ABI 110 compatibility is provided if the "options COMPAT_FREEBSD6" is 111 present in the kernel configuration file. Make sure to add 112 this option to your kernel config file, or recompile X.Org 113 and the rest of ports; otherwise they may refuse to work. 114 11520060924: 116 tcpslice has been removed from the base system. 117 11820060913: 119 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 120 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 121 systat needs to be rebuilt. 122 12320060903: 124 libpcap updated to v0.9.4 and tcpdump to v3.9.4 125 12620060816: 127 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 128 for IPFIREWALL_FORWARD is now as it was before when it was first 129 committed and for years after. The behaviour is now ON. 130 13120060725: 132 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 133 Now it can decrypt files created from different architectures. 134 Unfortunately, it is no longer able to decrypt a cipher text 135 generated with an older version on 64 bit architectures. 136 If you have such a file, you need old utility to decrypt it. 137 13820060709: 139 The interface version of the i4b kernel part has changed. So 140 after updating the kernel sources and compiling a new kernel, 141 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 142 be rebuilt, and vice versa. 143 14420060627: 145 The XBOX kernel now defaults to the nfe(4) driver instead of 146 the nve(4) driver. Please update your configuration 147 accordingly. 148 14920060514: 150 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 151 PCnet family of NICs has been removed. The new le(4) driver serves 152 as an equivalent but cross-platform replacement with the pcn(4) 153 driver still providing performance-optimized support for the subset 154 of AMD Am79C971 PCnet-FAST and greater chips as before. 155 15620060511: 157 The machdep.* sysctls and the adjkerntz utility have been 158 modified a bit. The new adjkerntz utility uses the new 159 sysctl names and sysctlbyname() calls, so it may be impossible 160 to run an old /sbin/adjkerntz utility in single-user mode 161 with a new kernel. Replace the `adjkerntz -i' step before 162 `make installworld' with: 163 164 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 165 166 and proceed as usual with the rest of the installworld-stage 167 steps. Otherwise, you risk installing binaries with their 168 timestamp set several hours in the future, especially if 169 you are running with local time set to GMT+X hours. 170 17120060412: 172 The ip6fw utility has been removed. The behavior provided by 173 ip6fw has been in ipfw2 for a good while and the rc.d scripts 174 have been updated to deal with it. There are some rules that 175 might not migrate cleanly. Use rc.firewall6 as a template to 176 rewrite rules. 177 17820060428: 179 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 180 attachments have been removed. Make sure to configure scc(4) 181 on sparc64. Note also that by default puc(4) will use uart(4) 182 and not sio(4) for serial ports because interrupt handling has 183 been optimized for multi-port serial cards and only uart(4) 184 implements the interface to support it. 185 18620060330: 187 The scc(4) driver replaces puc(4) for Serial Communications 188 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 189 Z8530. On sparc64, it is advised to add scc(4) to the kernel 190 configuration to make sure that the serial ports remain 191 functional. 192 19320060317: 194 Most world/kernel related NO_* build options changed names. 195 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 196 after FreeBSD ports) and should be set in /etc/src.conf 197 (the src.conf(5) manpage is provided). Full backwards 198 compatibility is maintained for the time being though it's 199 highly recommended to start moving old options out of the 200 system-wide /etc/make.conf file into the new /etc/src.conf 201 while also properly renaming them. More conversions will 202 likely follow. Posting to current@: 203 204 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 205 20620060305: 207 The NETSMBCRYPTO kernel option has been retired because its 208 functionality is always included in NETSMB and smbfs.ko now. 209 21020060303: 211 The TDFX_LINUX kernel option was retired and replaced by the 212 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 213 kernel module. Loading it alone should suffice to get 3dfx support 214 for Linux apps because it will pull in 3dfx.ko and linux.ko through 215 its dependencies. 216 21720060204: 218 The 'audit' group was added to support the new auditing functionality 219 in the base system. Be sure to follow the directions for updating, 220 including the requirement to run mergemaster -p. 221 22220060201: 223 The kernel ABI to file system modules was changed on i386. 224 Please make sure that your kernel and modules are in sync. 225 22620060118: 227 This actually occured some time ago, but installing the kernel 228 now also installs a bunch of symbol files for the kernel modules. 229 This increases the size of /boot/kernel to about 67Mbytes. You 230 will need twice this if you will eventually back this up to kernel.old 231 on your next install. 232 If you have a shortage of room in your root partition, you should add 233 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 234 to your /etc/make.conf. 235 23620060113: 237 libc's malloc implementation has been replaced. This change has the 238 potential to uncover application bugs that previously went unnoticed. 239 See the malloc(3) manual page for more details. 240 24120060112: 242 The generic netgraph(4) cookie has been changed. If you upgrade 243 kernel passing this point, you also need to upgrade userland 244 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 245 24620060106: 247 si(4)'s device files now contain the unit number. 248 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 249 25020060106: 251 The kernel ABI was mostly destroyed due to a change in the size 252 of struct lock_object which is nested in other structures such 253 as mutexes which are nested in all sorts of other structures. 254 Make sure your kernel and modules are in sync. 255 25620051231: 257 The page coloring algorithm in the VM subsystem was converted 258 from tuning with kernel options to autotuning. Please remove 259 any PQ_* option except PQ_NOOPT from your kernel config. 260 26120051211: 262 The net80211-related tools in the tools/tools/ath directory 263 have been moved to tools/tools/net80211 and renamed with a 264 "wlan" prefix. Scripts that use them should be adjusted 265 accordingly. 266 26720051202: 268 Scripts in the local_startup directories (as defined in 269 /etc/defaults/rc.conf) that have the new rc.d semantics will 270 now be run as part of the base system rcorder. If there are 271 errors or problems with one of these local scripts, it could 272 cause boot problems. If you encounter such problems, boot in 273 single user mode, remove that script from the */rc.d directory. 274 Please report the problem to the port's maintainer, and the 275 freebsd-ports@freebsd.org mailing list. 276 27720051129: 278 The nodev mount option was deprecated in RELENG_6 (where it 279 was a no-op), and is now unsupported. If you have nodev or dev listed 280 in /etc/fstab, remove it, otherwise it will result in a mount error. 281 28220051129: 283 ABI between ipfw(4) and ipfw(8) has been changed. You need 284 to rebuild ipfw(8) when rebuilding kernel. 285 28620051108: 287 rp(4)'s device files now contain the unit number. 288 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 289 29020051029: 291 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 292 Its /etc/rc.conf.d configuration file has been `ppp' from 293 the beginning, and hence there is no need to touch it. 294 29520051014: 296 Now most modules get their build-time options from the kernel 297 configuration file. A few modules still have fixed options 298 due to their non-conformant implementation, but they will be 299 corrected eventually. You may need to review the options of 300 the modules in use, explicitly specify the non-default options 301 in the kernel configuration file, and rebuild the kernel and 302 modules afterwards. 303 30420051001: 305 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 306 to turn polling(4) on your interfaces. 307 30820050927: 309 The old bridge(4) implementation was retired. The new 310 if_bridge(4) serves as a full functional replacement. 311 31220050722: 313 The ai_addrlen of a struct addrinfo was changed to a socklen_t 314 to conform to POSIX-2001. This change broke an ABI 315 compatibility on 64 bit architecture. You have to recompile 316 userland programs that use getaddrinfo(3) on 64 bit 317 architecture. 318 31920050711: 320 RELENG_6 branched here. 321 32220050629: 323 The pccard_ifconfig rc.conf variable has been removed and a new 324 variable, ifconfig_DEFAULT has been introduced. Unlike 325 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 326 do not have ifconfig_ifn entries rather than just those in 327 removable_interfaces. 328 32920050616: 330 Some previous versions of PAM have permitted the use of 331 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 332 to third party PAM modules in /usr/local/lib. A change has been 333 made to require the use of absolute paths in order to avoid 334 ambiguity and dependence on library path configuration, which may 335 affect existing configurations. 336 33720050610: 338 Major changes to network interface API. All drivers must be 339 recompiled. Drivers not in the base system will need to be 340 updated to the new APIs. 341 34220050609: 343 Changes were made to kinfo_proc in sys/user.h. Please recompile 344 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 345 will not behave correctly. 346 347 The API and ABI for hwpmc(4) have changed with the addition 348 of sampling support. Please recompile lib/libpmc(3) and 349 usr.sbin/{pmcstat,pmccontrol}. 350 35120050606: 352 The OpenBSD dhclient was imported in place of the ISC dhclient 353 and the network interface configuration scripts were updated 354 accordingly. If you use DHCP to configure your interfaces, you 355 must now run devd. Also, DNS updating was lost so you will need 356 to find a workaround if you use this feature. 357 358 The '_dhcp' user was added to support the OpenBSD dhclient. Be 359 sure to run mergemaster -p (like you are supposed to do every time 360 anyway). 361 36220050605: 363 if_bridge was added to the tree. This has changed struct ifnet. 364 Please recompile userland and all network related modules. 365 36620050603: 367 The n_net of a struct netent was changed to an uint32_t, and 368 1st argument of getnetbyaddr() was changed to an uint32_t, to 369 conform to POSIX-2001. These changes broke an ABI 370 compatibility on 64 bit architecture. With these changes, 371 shlib major of libpcap was bumped. You have to recompile 372 userland programs that use getnetbyaddr(3), getnetbyname(3), 373 getnetent(3) and/or libpcap on 64 bit architecture. 374 37520050528: 376 Kernel parsing of extra options on '#!' first lines of shell 377 scripts has changed. Lines with multiple options likely will 378 fail after this date. For full details, please see 379 http://people.freebsd.org/~gad/Updating-20050528.txt 380 38120050503: 382 The packet filter (pf) code has been updated to OpenBSD 3.7 383 Please note the changed anchor syntax and the fact that 384 authpf(8) now needs a mounted fdescfs(5) to function. 385 38620050415: 387 The NO_MIXED_MODE kernel option has been removed from the i386 388 amd64 platforms as its use has been superceded by the new local 389 APIC timer code. Any kernel config files containing this option 390 should be updated. 391 39220050227: 393 The on-disk format of LC_CTYPE files was changed to be machine 394 independent. Please make sure NOT to use NO_CLEAN buildworld 395 when crossing this point. Crossing this point also requires 396 recompile or reinstall of all locale depended packages. 397 39820050225: 399 The ifi_epoch member of struct if_data has been changed to 400 contain the uptime at which the interface was created or the 401 statistics zeroed rather then the wall clock time because 402 wallclock time may go backwards. This should have no impact 403 unless an snmp implementation is using this value (I know of 404 none at this point.) 405 40620050224: 407 The acpi_perf and acpi_throttle drivers are now part of the 408 acpi(4) main module. They are no longer built separately. 409 41020050223: 411 The layout of struct image_params has changed. You have to 412 recompile all compatibility modules (linux, svr4, etc) for use 413 with the new kernel. 414 41520050223: 416 The p4tcc driver has been merged into cpufreq(4). This makes 417 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 418 compile in "device cpufreq" to restore this functionality. 419 42020050220: 421 The responsibility of recomputing the file system summary of 422 a SoftUpdates-enabled dirty volume has been transferred to the 423 background fsck. A rebuild of fsck(8) utility is recommended 424 if you have updated the kernel. 425 426 To get the old behavior (recompute file system summary at mount 427 time), you can set vfs.ffs.compute_summary_at_mount=1 before 428 mounting the new volume. 429 43020050206: 431 The cpufreq import is complete. As part of this, the sysctls for 432 acpi(4) throttling have been removed. The power_profile script 433 has been updated, so you can use performance/economy_cpu_freq in 434 rc.conf(5) to set AC on/offline cpu frequencies. 435 43620050206: 437 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 438 requires recompiling libnetgraph and userland netgraph utilities. 439 44020050114: 441 Support for abbreviated forms of a number of ipfw options is 442 now deprecated. Warnings are printed to stderr indicating the 443 correct full form when a match occurs. Some abbreviations may 444 be supported at a later date based on user feedback. To be 445 considered for support, abbreviations must be in use prior to 446 this commit and unlikely to be confused with current key words. 447 44820041221: 449 By a popular demand, a lot of NOFOO options were renamed 450 to NO_FOO (see bsd.compat.mk for a full list). The old 451 spellings are still supported, but will cause annoying 452 warnings on stderr. Make sure you upgrade properly (see 453 the COMMON ITEMS: section later in this file). 454 45520041219: 456 Auto-loading of ancillary wlan modules such as wlan_wep has 457 been temporarily disabled; you need to statically configure 458 the modules you need into your kernel or explicitly load them 459 prior to use. Specifically, if you intend to use WEP encryption 460 with an 802.11 device load/configure wlan_wep; if you want to 461 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 462 and wlan_xauth as required. 463 46420041213: 465 The behaviour of ppp(8) has changed slightly. If lqr is enabled 466 (``enable lqr''), older versions would revert to LCP ECHO mode on 467 negotiation failure. Now, ``enable echo'' is required for this 468 behaviour. The ppp version number has been bumped to 3.4.2 to 469 reflect the change. 470 47120041201: 472 The wlan support has been updated to split the crypto support 473 into separate modules. For static WEP you must configure the 474 wlan_wep module in your system or build and install the module 475 in place where it can be loaded (the kernel will auto-load 476 the module when a wep key is configured). 477 47820041201: 479 The ath driver has been updated to split the tx rate control 480 algorithm into a separate module. You need to include either 481 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 482 48320041116: 484 Support for systems with an 80386 CPU has been removed. Please 485 use FreeBSD 5.x or earlier on systems with an 80386. 486 48720041110: 488 We have had a hack which would mount the root filesystem 489 R/W if the device were named 'md*'. As part of the vnode 490 work I'm doing I have had to remove this hack. People 491 building systems which use preloaded MD root filesystems 492 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 493 their /etc/rc scripts. 494 49520041104: 496 FreeBSD 5.3 shipped here. 497 49820041102: 499 The size of struct tcpcb has changed again due to the removal 500 of RFC1644 T/TCP. You have to recompile userland programs that 501 read kmem for tcp sockets directly (netstat, sockstat, etc.) 502 50320041022: 504 The size of struct tcpcb has changed. You have to recompile 505 userland programs that read kmem for tcp sockets directly 506 (netstat, sockstat, etc.) 507 50820041016: 509 RELENG_5 branched here. For older entries, please see updating 510 in the RELENG_5 branch. 511 512COMMON ITEMS: 513 514 General Notes 515 ------------- 516 Avoid using make -j when upgrading. From time to time in the 517 past there have been problems using -j with buildworld and/or 518 installworld. This is especially true when upgrading between 519 "distant" versions (eg one that cross a major release boundary 520 or several minor releases, or when several months have passed 521 on the -current branch). 522 523 Sometimes, obscure build problems are the result of environment 524 poisoning. This can happen because the make utility reads its 525 environment when searching for values for global variables. 526 To run your build attempts in an "environmental clean room", 527 prefix all make commands with 'env -i '. See the env(1) manual 528 page for more details. 529 530 When upgrading from one major version to another it is generally 531 best to upgrade to the latest code in the currently installed branch 532 first, then do an upgrade to the new branch. This is the best-tested 533 upgrade path, and has the highest probability of being successful. 534 Please try this approach before reporting problems with a major 535 version upgrade. 536 537 To build a kernel 538 ----------------- 539 If you are updating from a prior version of FreeBSD (even one just 540 a few days old), you should follow this procedure. It is the most 541 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 542 543 make kernel-toolchain 544 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 545 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 546 547 To test a kernel once 548 --------------------- 549 If you just want to boot a kernel once (because you are not sure 550 if it works, or if you want to boot a known bad kernel to provide 551 debugging information) run 552 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 553 nextboot -k testkernel 554 555 To just build a kernel when you know that it won't mess you up 556 -------------------------------------------------------------- 557 This assumes you are already running a 5.X system. Replace 558 ${arch} with the architecture of your machine (e.g. "i386", 559 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 560 561 cd src/sys/${arch}/conf 562 config KERNEL_NAME_HERE 563 cd ../compile/KERNEL_NAME_HERE 564 make depend 565 make 566 make install 567 568 If this fails, go to the "To build a kernel" section. 569 570 To rebuild everything and install it on the current system. 571 ----------------------------------------------------------- 572 # Note: sometimes if you are running current you gotta do more than 573 # is listed here if you are upgrading from a really old current. 574 575 <make sure you have good level 0 dumps> 576 make buildworld 577 make kernel KERNCONF=YOUR_KERNEL_HERE 578 [1] 579 <reboot in single user> [3] 580 mergemaster -p [5] 581 make installworld 582 make delete-old 583 mergemaster [4] 584 <reboot> 585 586 587 To cross-install current onto a separate partition 588 -------------------------------------------------- 589 # In this approach we use a separate partition to hold 590 # current's root, 'usr', and 'var' directories. A partition 591 # holding "/", "/usr" and "/var" should be about 2GB in 592 # size. 593 594 <make sure you have good level 0 dumps> 595 <boot into -stable> 596 make buildworld 597 make buildkernel KERNCONF=YOUR_KERNEL_HERE 598 <maybe newfs current's root partition> 599 <mount current's root partition on directory ${CURRENT_ROOT}> 600 make installworld DESTDIR=${CURRENT_ROOT} 601 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 602 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 603 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 604 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 605 <reboot into current> 606 <do a "native" rebuild/install as described in the previous section> 607 <maybe install compatibility libraries from src/lib/compat> 608 <reboot> 609 610 611 To upgrade in-place from 5.x-stable to current 612 ---------------------------------------------- 613 <make sure you have good level 0 dumps> 614 make buildworld [9] 615 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 616 [1] 617 <reboot in single user> [3] 618 mergemaster -p [5] 619 make installworld 620 make delete-old 621 mergemaster -i [4] 622 <reboot> 623 624 Make sure that you've read the UPDATING file to understand the 625 tweaks to various things you need. At this point in the life 626 cycle of current, things change often and you are on your own 627 to cope. The defaults can also change, so please read ALL of 628 the UPDATING entries. 629 630 Also, if you are tracking -current, you must be subscribed to 631 freebsd-current@freebsd.org. Make sure that before you update 632 your sources that you have read and understood all the recent 633 messages there. If in doubt, please track -stable which has 634 much fewer pitfalls. 635 636 [1] If you have third party modules, such as vmware, you 637 should disable them at this point so they don't crash your 638 system on reboot. 639 640 [3] From the bootblocks, boot -s, and then do 641 fsck -p 642 mount -u / 643 mount -a 644 cd src 645 adjkerntz -i # if CMOS is wall time 646 Also, when doing a major release upgrade, it is required that 647 you boot into single user mode to do the installworld. 648 649 [4] Note: This step is non-optional. Failure to do this step 650 can result in a significant reduction in the functionality of the 651 system. Attempting to do it by hand is not recommended and those 652 that pursue this avenue should read this file carefully, as well 653 as the archives of freebsd-current and freebsd-hackers mailing lists 654 for potential gotchas. 655 656 [5] Usually this step is a noop. However, from time to time 657 you may need to do this if you get unknown user in the following 658 step. It never hurts to do it all the time. You may need to 659 install a new mergemaster (cd src/usr.sbin/mergemaster && make 660 install) after the buildworld before this step if you last updated 661 from current before 20020224 or from -stable before 20020408. 662 663 [8] In order to have a kernel that can run the 4.x binaries 664 needed to do an installworld, you must include the COMPAT_FREEBSD4 665 option in your kernel. Failure to do so may leave you with a system 666 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 667 is required to run the 5.x binaries on more recent kernels. 668 669 Make sure that you merge any new devices from GENERIC since the 670 last time you updated your kernel config file. 671 672 [9] When checking out sources, you must include the -P flag to have 673 cvs prune empty directories. 674 675 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 676 "?=" instead of the "=" assignment operator, so that buildworld can 677 override the CPUTYPE if it needs to. 678 679 MAKEOBJDIRPREFIX must be defined in an environment variable, and 680 not on the command line, or in /etc/make.conf. buildworld will 681 warn if it is improperly defined. 682FORMAT: 683 684This file contains a list, in reverse chronological order, of major 685breakages in tracking -current. Not all things will be listed here, 686and it only starts on October 16, 2004. Updating files can found in 687previous releases if your system is older than this. 688 689Copyright information: 690 691Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 692 693Redistribution, publication, translation and use, with or without 694modification, in full or in part, in any form or format of this 695document are permitted without further permission from the author. 696 697THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 698IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 699WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 700DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 701INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 702(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 703SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 704HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 705STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 706IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 707POSSIBILITY OF SUCH DAMAGE. 708 709If you find this document useful, and you want to, you may buy the 710author a beer. 711 712Contact Warner Losh if you have any questions about your use of 713this document. 714 715$FreeBSD: head/UPDATING 166549 2007-02-07 16:04:13Z bms $ 716