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 2420070210: 25 PIM has been turned on by default in the IPv4 multicast 26 routing code. The kernel option 'PIM' has now been removed. 27 PIM is now built by default if option 'MROUTING' is specified. 28 It may now be loaded into GENERIC kernels by loading the 29 ip_mroute.ko module. 30 3120070207: 32 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 33 has been removed. Its functionality may be achieved by explicitly 34 configuring gif(4) interfaces and using the 'phyint' keyword in 35 mrouted.conf. 36 XORP does not support source-routed IPv4 multicast tunnels nor the 37 integrated IPIP tunneling, therefore it is not affected by this 38 change. The __FreeBSD_version macro has been bumped to 700030. 39 4020061221: 41 Support for PCI Message Signalled Interrupts has been 42 re-enabled in the bge driver, only for those chips which are 43 believed to support it properly. If there are any problems, 44 MSI can be disabled completely by setting the 45 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 46 in the loader. 47 4820061214: 49 Support for PCI Message Signalled Interrupts has been 50 disabled again in the bge driver. Many revisions of the 51 hardware fail to support it properly. Support can be 52 re-enabled by removing the #define of BGE_DISABLE_MSI in 53 "src/sys/dev/bge/if_bge.c". 54 5520061214: 56 Support for PCI Message Signalled Interrupts has been added 57 to the bge driver. If there are any problems, MSI can be 58 disabled completely by setting the 'hw.pci.enable_msi' and 59 'hw.pci.enable_msix' tunables to 0 in the loader. 60 6120061205: 62 The removal of several facets of the experimental Threading 63 system from the kernel means that the proc and thread structures 64 have changed quite a bit. I suggest all kernel modules that might 65 reference these structures be recompiled.. Especially the 66 linux module. 67 6820061126: 69 Sound infrastructure has been updated with various fixes and 70 improvements. Most of the changes are pretty much transparent, 71 with exceptions of followings: 72 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 73 moved to their own dev sysctl nodes, for example: 74 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 75 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 76 own chardev in the form of "dsp%d.<function>%d", where <function> 77 is p = playback, r = record and v = virtual, respectively. Users 78 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 79 This does not affect those who are using "/dev/dsp". 80 8120061122: 82 The following binaries have been disconnected from the build: 83 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 84 and mount_std. The functionality of these programs has been 85 moved into the mount program. For example, to mount a devfs 86 filesystem, instead of using mount_devfs, use: "mount -t devfs". 87 This does not affect entries in /etc/fstab, since entries in 88 /etc/fstab are always processed with "mount -t fstype". 89 9020061113: 91 Support for PCI Message Signalled Interrupts on i386 and amd64 92 has been added to the kernel and various drivers will soon be 93 updated to use MSI when it is available. If there are any problems, 94 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 95 and 'hw.pci.enable_msix' tunables to 0 in the loader. 96 9720061110: 98 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 99 The lockmgr object layout has been changed as a result of having 100 a lock_object embedded in it. As a consequence all file system 101 kernel modules must be re-compiled. The mutex profiling man page 102 has not yet been updated to reflect this change. 103 10420061026: 105 KSE in the kernel has now been made optional and turned on by 106 default. Use 'nooption KSE' in your kernel config to turn it 107 off. All kernel modules *must* be recompiled after this change. 108 There-after, modules from a KSE kernel should be compatible with 109 modules from a NOKSE kernel due to the temporary padding fields 110 added to 'struct proc'. 111 11220060929: 113 mrouted and its utilities have been removed from the base system. 114 11520060927: 116 Some ioctl(2) command codes have changed. Full backward ABI 117 compatibility is provided if the "options COMPAT_FREEBSD6" is 118 present in the kernel configuration file. Make sure to add 119 this option to your kernel config file, or recompile X.Org 120 and the rest of ports; otherwise they may refuse to work. 121 12220060924: 123 tcpslice has been removed from the base system. 124 12520060913: 126 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 127 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 128 systat needs to be rebuilt. 129 13020060903: 131 libpcap updated to v0.9.4 and tcpdump to v3.9.4 132 13320060816: 134 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 135 for IPFIREWALL_FORWARD is now as it was before when it was first 136 committed and for years after. The behaviour is now ON. 137 13820060725: 139 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 140 Now it can decrypt files created from different architectures. 141 Unfortunately, it is no longer able to decrypt a cipher text 142 generated with an older version on 64 bit architectures. 143 If you have such a file, you need old utility to decrypt it. 144 14520060709: 146 The interface version of the i4b kernel part has changed. So 147 after updating the kernel sources and compiling a new kernel, 148 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 149 be rebuilt, and vice versa. 150 15120060627: 152 The XBOX kernel now defaults to the nfe(4) driver instead of 153 the nve(4) driver. Please update your configuration 154 accordingly. 155 15620060514: 157 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 158 PCnet family of NICs has been removed. The new le(4) driver serves 159 as an equivalent but cross-platform replacement with the pcn(4) 160 driver still providing performance-optimized support for the subset 161 of AMD Am79C971 PCnet-FAST and greater chips as before. 162 16320060511: 164 The machdep.* sysctls and the adjkerntz utility have been 165 modified a bit. The new adjkerntz utility uses the new 166 sysctl names and sysctlbyname() calls, so it may be impossible 167 to run an old /sbin/adjkerntz utility in single-user mode 168 with a new kernel. Replace the `adjkerntz -i' step before 169 `make installworld' with: 170 171 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 172 173 and proceed as usual with the rest of the installworld-stage 174 steps. Otherwise, you risk installing binaries with their 175 timestamp set several hours in the future, especially if 176 you are running with local time set to GMT+X hours. 177 17820060412: 179 The ip6fw utility has been removed. The behavior provided by 180 ip6fw has been in ipfw2 for a good while and the rc.d scripts 181 have been updated to deal with it. There are some rules that 182 might not migrate cleanly. Use rc.firewall6 as a template to 183 rewrite rules. 184 18520060428: 186 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 187 attachments have been removed. Make sure to configure scc(4) 188 on sparc64. Note also that by default puc(4) will use uart(4) 189 and not sio(4) for serial ports because interrupt handling has 190 been optimized for multi-port serial cards and only uart(4) 191 implements the interface to support it. 192 19320060330: 194 The scc(4) driver replaces puc(4) for Serial Communications 195 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 196 Z8530. On sparc64, it is advised to add scc(4) to the kernel 197 configuration to make sure that the serial ports remain 198 functional. 199 20020060317: 201 Most world/kernel related NO_* build options changed names. 202 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 203 after FreeBSD ports) and should be set in /etc/src.conf 204 (the src.conf(5) manpage is provided). Full backwards 205 compatibility is maintained for the time being though it's 206 highly recommended to start moving old options out of the 207 system-wide /etc/make.conf file into the new /etc/src.conf 208 while also properly renaming them. More conversions will 209 likely follow. Posting to current@: 210 211 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 212 21320060305: 214 The NETSMBCRYPTO kernel option has been retired because its 215 functionality is always included in NETSMB and smbfs.ko now. 216 21720060303: 218 The TDFX_LINUX kernel option was retired and replaced by the 219 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 220 kernel module. Loading it alone should suffice to get 3dfx support 221 for Linux apps because it will pull in 3dfx.ko and linux.ko through 222 its dependencies. 223 22420060204: 225 The 'audit' group was added to support the new auditing functionality 226 in the base system. Be sure to follow the directions for updating, 227 including the requirement to run mergemaster -p. 228 22920060201: 230 The kernel ABI to file system modules was changed on i386. 231 Please make sure that your kernel and modules are in sync. 232 23320060118: 234 This actually occured some time ago, but installing the kernel 235 now also installs a bunch of symbol files for the kernel modules. 236 This increases the size of /boot/kernel to about 67Mbytes. You 237 will need twice this if you will eventually back this up to kernel.old 238 on your next install. 239 If you have a shortage of room in your root partition, you should add 240 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 241 to your /etc/make.conf. 242 24320060113: 244 libc's malloc implementation has been replaced. This change has the 245 potential to uncover application bugs that previously went unnoticed. 246 See the malloc(3) manual page for more details. 247 24820060112: 249 The generic netgraph(4) cookie has been changed. If you upgrade 250 kernel passing this point, you also need to upgrade userland 251 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 252 25320060106: 254 si(4)'s device files now contain the unit number. 255 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 256 25720060106: 258 The kernel ABI was mostly destroyed due to a change in the size 259 of struct lock_object which is nested in other structures such 260 as mutexes which are nested in all sorts of other structures. 261 Make sure your kernel and modules are in sync. 262 26320051231: 264 The page coloring algorithm in the VM subsystem was converted 265 from tuning with kernel options to autotuning. Please remove 266 any PQ_* option except PQ_NOOPT from your kernel config. 267 26820051211: 269 The net80211-related tools in the tools/tools/ath directory 270 have been moved to tools/tools/net80211 and renamed with a 271 "wlan" prefix. Scripts that use them should be adjusted 272 accordingly. 273 27420051202: 275 Scripts in the local_startup directories (as defined in 276 /etc/defaults/rc.conf) that have the new rc.d semantics will 277 now be run as part of the base system rcorder. If there are 278 errors or problems with one of these local scripts, it could 279 cause boot problems. If you encounter such problems, boot in 280 single user mode, remove that script from the */rc.d directory. 281 Please report the problem to the port's maintainer, and the 282 freebsd-ports@freebsd.org mailing list. 283 28420051129: 285 The nodev mount option was deprecated in RELENG_6 (where it 286 was a no-op), and is now unsupported. If you have nodev or dev listed 287 in /etc/fstab, remove it, otherwise it will result in a mount error. 288 28920051129: 290 ABI between ipfw(4) and ipfw(8) has been changed. You need 291 to rebuild ipfw(8) when rebuilding kernel. 292 29320051108: 294 rp(4)'s device files now contain the unit number. 295 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 296 29720051029: 298 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 299 Its /etc/rc.conf.d configuration file has been `ppp' from 300 the beginning, and hence there is no need to touch it. 301 30220051014: 303 Now most modules get their build-time options from the kernel 304 configuration file. A few modules still have fixed options 305 due to their non-conformant implementation, but they will be 306 corrected eventually. You may need to review the options of 307 the modules in use, explicitly specify the non-default options 308 in the kernel configuration file, and rebuild the kernel and 309 modules afterwards. 310 31120051001: 312 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 313 to turn polling(4) on your interfaces. 314 31520050927: 316 The old bridge(4) implementation was retired. The new 317 if_bridge(4) serves as a full functional replacement. 318 31920050722: 320 The ai_addrlen of a struct addrinfo was changed to a socklen_t 321 to conform to POSIX-2001. This change broke an ABI 322 compatibility on 64 bit architecture. You have to recompile 323 userland programs that use getaddrinfo(3) on 64 bit 324 architecture. 325 32620050711: 327 RELENG_6 branched here. 328 32920050629: 330 The pccard_ifconfig rc.conf variable has been removed and a new 331 variable, ifconfig_DEFAULT has been introduced. Unlike 332 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 333 do not have ifconfig_ifn entries rather than just those in 334 removable_interfaces. 335 33620050616: 337 Some previous versions of PAM have permitted the use of 338 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 339 to third party PAM modules in /usr/local/lib. A change has been 340 made to require the use of absolute paths in order to avoid 341 ambiguity and dependence on library path configuration, which may 342 affect existing configurations. 343 34420050610: 345 Major changes to network interface API. All drivers must be 346 recompiled. Drivers not in the base system will need to be 347 updated to the new APIs. 348 34920050609: 350 Changes were made to kinfo_proc in sys/user.h. Please recompile 351 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 352 will not behave correctly. 353 354 The API and ABI for hwpmc(4) have changed with the addition 355 of sampling support. Please recompile lib/libpmc(3) and 356 usr.sbin/{pmcstat,pmccontrol}. 357 35820050606: 359 The OpenBSD dhclient was imported in place of the ISC dhclient 360 and the network interface configuration scripts were updated 361 accordingly. If you use DHCP to configure your interfaces, you 362 must now run devd. Also, DNS updating was lost so you will need 363 to find a workaround if you use this feature. 364 365 The '_dhcp' user was added to support the OpenBSD dhclient. Be 366 sure to run mergemaster -p (like you are supposed to do every time 367 anyway). 368 36920050605: 370 if_bridge was added to the tree. This has changed struct ifnet. 371 Please recompile userland and all network related modules. 372 37320050603: 374 The n_net of a struct netent was changed to an uint32_t, and 375 1st argument of getnetbyaddr() was changed to an uint32_t, to 376 conform to POSIX-2001. These changes broke an ABI 377 compatibility on 64 bit architecture. With these changes, 378 shlib major of libpcap was bumped. You have to recompile 379 userland programs that use getnetbyaddr(3), getnetbyname(3), 380 getnetent(3) and/or libpcap on 64 bit architecture. 381 38220050528: 383 Kernel parsing of extra options on '#!' first lines of shell 384 scripts has changed. Lines with multiple options likely will 385 fail after this date. For full details, please see 386 http://people.freebsd.org/~gad/Updating-20050528.txt 387 38820050503: 389 The packet filter (pf) code has been updated to OpenBSD 3.7 390 Please note the changed anchor syntax and the fact that 391 authpf(8) now needs a mounted fdescfs(5) to function. 392 39320050415: 394 The NO_MIXED_MODE kernel option has been removed from the i386 395 amd64 platforms as its use has been superceded by the new local 396 APIC timer code. Any kernel config files containing this option 397 should be updated. 398 39920050227: 400 The on-disk format of LC_CTYPE files was changed to be machine 401 independent. Please make sure NOT to use NO_CLEAN buildworld 402 when crossing this point. Crossing this point also requires 403 recompile or reinstall of all locale depended packages. 404 40520050225: 406 The ifi_epoch member of struct if_data has been changed to 407 contain the uptime at which the interface was created or the 408 statistics zeroed rather then the wall clock time because 409 wallclock time may go backwards. This should have no impact 410 unless an snmp implementation is using this value (I know of 411 none at this point.) 412 41320050224: 414 The acpi_perf and acpi_throttle drivers are now part of the 415 acpi(4) main module. They are no longer built separately. 416 41720050223: 418 The layout of struct image_params has changed. You have to 419 recompile all compatibility modules (linux, svr4, etc) for use 420 with the new kernel. 421 42220050223: 423 The p4tcc driver has been merged into cpufreq(4). This makes 424 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 425 compile in "device cpufreq" to restore this functionality. 426 42720050220: 428 The responsibility of recomputing the file system summary of 429 a SoftUpdates-enabled dirty volume has been transferred to the 430 background fsck. A rebuild of fsck(8) utility is recommended 431 if you have updated the kernel. 432 433 To get the old behavior (recompute file system summary at mount 434 time), you can set vfs.ffs.compute_summary_at_mount=1 before 435 mounting the new volume. 436 43720050206: 438 The cpufreq import is complete. As part of this, the sysctls for 439 acpi(4) throttling have been removed. The power_profile script 440 has been updated, so you can use performance/economy_cpu_freq in 441 rc.conf(5) to set AC on/offline cpu frequencies. 442 44320050206: 444 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 445 requires recompiling libnetgraph and userland netgraph utilities. 446 44720050114: 448 Support for abbreviated forms of a number of ipfw options is 449 now deprecated. Warnings are printed to stderr indicating the 450 correct full form when a match occurs. Some abbreviations may 451 be supported at a later date based on user feedback. To be 452 considered for support, abbreviations must be in use prior to 453 this commit and unlikely to be confused with current key words. 454 45520041221: 456 By a popular demand, a lot of NOFOO options were renamed 457 to NO_FOO (see bsd.compat.mk for a full list). The old 458 spellings are still supported, but will cause annoying 459 warnings on stderr. Make sure you upgrade properly (see 460 the COMMON ITEMS: section later in this file). 461 46220041219: 463 Auto-loading of ancillary wlan modules such as wlan_wep has 464 been temporarily disabled; you need to statically configure 465 the modules you need into your kernel or explicitly load them 466 prior to use. Specifically, if you intend to use WEP encryption 467 with an 802.11 device load/configure wlan_wep; if you want to 468 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 469 and wlan_xauth as required. 470 47120041213: 472 The behaviour of ppp(8) has changed slightly. If lqr is enabled 473 (``enable lqr''), older versions would revert to LCP ECHO mode on 474 negotiation failure. Now, ``enable echo'' is required for this 475 behaviour. The ppp version number has been bumped to 3.4.2 to 476 reflect the change. 477 47820041201: 479 The wlan support has been updated to split the crypto support 480 into separate modules. For static WEP you must configure the 481 wlan_wep module in your system or build and install the module 482 in place where it can be loaded (the kernel will auto-load 483 the module when a wep key is configured). 484 48520041201: 486 The ath driver has been updated to split the tx rate control 487 algorithm into a separate module. You need to include either 488 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 489 49020041116: 491 Support for systems with an 80386 CPU has been removed. Please 492 use FreeBSD 5.x or earlier on systems with an 80386. 493 49420041110: 495 We have had a hack which would mount the root filesystem 496 R/W if the device were named 'md*'. As part of the vnode 497 work I'm doing I have had to remove this hack. People 498 building systems which use preloaded MD root filesystems 499 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 500 their /etc/rc scripts. 501 50220041104: 503 FreeBSD 5.3 shipped here. 504 50520041102: 506 The size of struct tcpcb has changed again due to the removal 507 of RFC1644 T/TCP. You have to recompile userland programs that 508 read kmem for tcp sockets directly (netstat, sockstat, etc.) 509 51020041022: 511 The size of struct tcpcb has changed. You have to recompile 512 userland programs that read kmem for tcp sockets directly 513 (netstat, sockstat, etc.) 514 51520041016: 516 RELENG_5 branched here. For older entries, please see updating 517 in the RELENG_5 branch. 518 519COMMON ITEMS: 520 521 General Notes 522 ------------- 523 Avoid using make -j when upgrading. From time to time in the 524 past there have been problems using -j with buildworld and/or 525 installworld. This is especially true when upgrading between 526 "distant" versions (eg one that cross a major release boundary 527 or several minor releases, or when several months have passed 528 on the -current branch). 529 530 Sometimes, obscure build problems are the result of environment 531 poisoning. This can happen because the make utility reads its 532 environment when searching for values for global variables. 533 To run your build attempts in an "environmental clean room", 534 prefix all make commands with 'env -i '. See the env(1) manual 535 page for more details. 536 537 When upgrading from one major version to another it is generally 538 best to upgrade to the latest code in the currently installed branch 539 first, then do an upgrade to the new branch. This is the best-tested 540 upgrade path, and has the highest probability of being successful. 541 Please try this approach before reporting problems with a major 542 version upgrade. 543 544 To build a kernel 545 ----------------- 546 If you are updating from a prior version of FreeBSD (even one just 547 a few days old), you should follow this procedure. It is the most 548 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 549 550 make kernel-toolchain 551 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 552 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 553 554 To test a kernel once 555 --------------------- 556 If you just want to boot a kernel once (because you are not sure 557 if it works, or if you want to boot a known bad kernel to provide 558 debugging information) run 559 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 560 nextboot -k testkernel 561 562 To just build a kernel when you know that it won't mess you up 563 -------------------------------------------------------------- 564 This assumes you are already running a 5.X system. Replace 565 ${arch} with the architecture of your machine (e.g. "i386", 566 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 567 568 cd src/sys/${arch}/conf 569 config KERNEL_NAME_HERE 570 cd ../compile/KERNEL_NAME_HERE 571 make depend 572 make 573 make install 574 575 If this fails, go to the "To build a kernel" section. 576 577 To rebuild everything and install it on the current system. 578 ----------------------------------------------------------- 579 # Note: sometimes if you are running current you gotta do more than 580 # is listed here if you are upgrading from a really old current. 581 582 <make sure you have good level 0 dumps> 583 make buildworld 584 make kernel KERNCONF=YOUR_KERNEL_HERE 585 [1] 586 <reboot in single user> [3] 587 mergemaster -p [5] 588 make installworld 589 make delete-old 590 mergemaster [4] 591 <reboot> 592 593 594 To cross-install current onto a separate partition 595 -------------------------------------------------- 596 # In this approach we use a separate partition to hold 597 # current's root, 'usr', and 'var' directories. A partition 598 # holding "/", "/usr" and "/var" should be about 2GB in 599 # size. 600 601 <make sure you have good level 0 dumps> 602 <boot into -stable> 603 make buildworld 604 make buildkernel KERNCONF=YOUR_KERNEL_HERE 605 <maybe newfs current's root partition> 606 <mount current's root partition on directory ${CURRENT_ROOT}> 607 make installworld DESTDIR=${CURRENT_ROOT} 608 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 609 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 610 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 611 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 612 <reboot into current> 613 <do a "native" rebuild/install as described in the previous section> 614 <maybe install compatibility libraries from src/lib/compat> 615 <reboot> 616 617 618 To upgrade in-place from 5.x-stable to current 619 ---------------------------------------------- 620 <make sure you have good level 0 dumps> 621 make buildworld [9] 622 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 623 [1] 624 <reboot in single user> [3] 625 mergemaster -p [5] 626 make installworld 627 make delete-old 628 mergemaster -i [4] 629 <reboot> 630 631 Make sure that you've read the UPDATING file to understand the 632 tweaks to various things you need. At this point in the life 633 cycle of current, things change often and you are on your own 634 to cope. The defaults can also change, so please read ALL of 635 the UPDATING entries. 636 637 Also, if you are tracking -current, you must be subscribed to 638 freebsd-current@freebsd.org. Make sure that before you update 639 your sources that you have read and understood all the recent 640 messages there. If in doubt, please track -stable which has 641 much fewer pitfalls. 642 643 [1] If you have third party modules, such as vmware, you 644 should disable them at this point so they don't crash your 645 system on reboot. 646 647 [3] From the bootblocks, boot -s, and then do 648 fsck -p 649 mount -u / 650 mount -a 651 cd src 652 adjkerntz -i # if CMOS is wall time 653 Also, when doing a major release upgrade, it is required that 654 you boot into single user mode to do the installworld. 655 656 [4] Note: This step is non-optional. Failure to do this step 657 can result in a significant reduction in the functionality of the 658 system. Attempting to do it by hand is not recommended and those 659 that pursue this avenue should read this file carefully, as well 660 as the archives of freebsd-current and freebsd-hackers mailing lists 661 for potential gotchas. 662 663 [5] Usually this step is a noop. However, from time to time 664 you may need to do this if you get unknown user in the following 665 step. It never hurts to do it all the time. You may need to 666 install a new mergemaster (cd src/usr.sbin/mergemaster && make 667 install) after the buildworld before this step if you last updated 668 from current before 20020224 or from -stable before 20020408. 669 670 [8] In order to have a kernel that can run the 4.x binaries 671 needed to do an installworld, you must include the COMPAT_FREEBSD4 672 option in your kernel. Failure to do so may leave you with a system 673 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 674 is required to run the 5.x binaries on more recent kernels. 675 676 Make sure that you merge any new devices from GENERIC since the 677 last time you updated your kernel config file. 678 679 [9] When checking out sources, you must include the -P flag to have 680 cvs prune empty directories. 681 682 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 683 "?=" instead of the "=" assignment operator, so that buildworld can 684 override the CPUTYPE if it needs to. 685 686 MAKEOBJDIRPREFIX must be defined in an environment variable, and 687 not on the command line, or in /etc/make.conf. buildworld will 688 warn if it is improperly defined. 689FORMAT: 690 691This file contains a list, in reverse chronological order, of major 692breakages in tracking -current. Not all things will be listed here, 693and it only starts on October 16, 2004. Updating files can found in 694previous releases if your system is older than this. 695 696Copyright information: 697 698Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 699 700Redistribution, publication, translation and use, with or without 701modification, in full or in part, in any form or format of this 702document are permitted without further permission from the author. 703 704THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 705IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 706WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 707DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 708INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 709(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 710SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 711HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 712STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 713IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 714POSSIBILITY OF SUCH DAMAGE. 715 716If you find this document useful, and you want to, you may buy the 717author a beer. 718 719Contact Warner Losh if you have any questions about your use of 720this document. 721 722$FreeBSD$ 723