UPDATING revision 166953
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 2420070224: 25 To support interrupt filtering a modification to the newbus API 26 has occurred, ABI was broken and __FreeBSD_version was bumped 27 to 700031. Please make sure that your kernel and modules are in 28 sync. For more info: 29 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 30 3120070224: 32 The IPv6 multicast forwarding code may now be loaded into GENERIC 33 kernels by loading the ip_mroute.ko module. This is built into the 34 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 35 set; see src.conf(5) for more information. 36 3720070218: 38 The following build error may appear when upgrading from an old 39 -current (usr.sbin/bsnmpd/modules/snmp_bridge, depend stage): 40 line 31: '(' expected at begin of node 41 context: " TruthValue ENUM ( 42 *** Error code 1 43 If so, run "make install" in usr.sbin/bsnmpd/gensnmptree. (It 44 should probably be a build tool). In the same module, you may 45 also get the error: 46 ...snmp_bridge/bridge_sys.c:39:27: 47 net/bridgestp.h: No such file or directory 48 If so, run "cp src/sys/net/bridgestp.h /usr/include/net". 49 5020070214: 51 The output of netstat -r has changed. Without -n, we now only 52 print a "network name" without the prefix length if the network 53 address and mask exactly match a Class A/B/C network, and an entry 54 exists in the nsswitch "networks" map. 55 With -n, we print the full unabbreviated CIDR network prefix in 56 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 57 This change is in preparation for changes such as equal-cost 58 multipath, and to more generally assist operational deployment 59 of FreeBSD as a modern IPv4 router. 60 6120070210: 62 PIM has been turned on by default in the IPv4 multicast 63 routing code. The kernel option 'PIM' has now been removed. 64 PIM is now built by default if option 'MROUTING' is specified. 65 It may now be loaded into GENERIC kernels by loading the 66 ip_mroute.ko module. 67 6820070207: 69 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 70 has been removed. Its functionality may be achieved by explicitly 71 configuring gif(4) interfaces and using the 'phyint' keyword in 72 mrouted.conf. 73 XORP does not support source-routed IPv4 multicast tunnels nor the 74 integrated IPIP tunneling, therefore it is not affected by this 75 change. The __FreeBSD_version macro has been bumped to 700030. 76 7720061221: 78 Support for PCI Message Signalled Interrupts has been 79 re-enabled in the bge driver, only for those chips which are 80 believed to support it properly. If there are any problems, 81 MSI can be disabled completely by setting the 82 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 83 in the loader. 84 8520061214: 86 Support for PCI Message Signalled Interrupts has been 87 disabled again in the bge driver. Many revisions of the 88 hardware fail to support it properly. Support can be 89 re-enabled by removing the #define of BGE_DISABLE_MSI in 90 "src/sys/dev/bge/if_bge.c". 91 9220061214: 93 Support for PCI Message Signalled Interrupts has been added 94 to the bge driver. If there are any problems, MSI can be 95 disabled completely by setting the 'hw.pci.enable_msi' and 96 'hw.pci.enable_msix' tunables to 0 in the loader. 97 9820061205: 99 The removal of several facets of the experimental Threading 100 system from the kernel means that the proc and thread structures 101 have changed quite a bit. I suggest all kernel modules that might 102 reference these structures be recompiled.. Especially the 103 linux module. 104 10520061126: 106 Sound infrastructure has been updated with various fixes and 107 improvements. Most of the changes are pretty much transparent, 108 with exceptions of followings: 109 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 110 moved to their own dev sysctl nodes, for example: 111 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 112 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 113 own chardev in the form of "dsp%d.<function>%d", where <function> 114 is p = playback, r = record and v = virtual, respectively. Users 115 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 116 This does not affect those who are using "/dev/dsp". 117 11820061122: 119 The following binaries have been disconnected from the build: 120 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 121 and mount_std. The functionality of these programs has been 122 moved into the mount program. For example, to mount a devfs 123 filesystem, instead of using mount_devfs, use: "mount -t devfs". 124 This does not affect entries in /etc/fstab, since entries in 125 /etc/fstab are always processed with "mount -t fstype". 126 12720061113: 128 Support for PCI Message Signalled Interrupts on i386 and amd64 129 has been added to the kernel and various drivers will soon be 130 updated to use MSI when it is available. If there are any problems, 131 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 132 and 'hw.pci.enable_msix' tunables to 0 in the loader. 133 13420061110: 135 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 136 The lockmgr object layout has been changed as a result of having 137 a lock_object embedded in it. As a consequence all file system 138 kernel modules must be re-compiled. The mutex profiling man page 139 has not yet been updated to reflect this change. 140 14120061026: 142 KSE in the kernel has now been made optional and turned on by 143 default. Use 'nooption KSE' in your kernel config to turn it 144 off. All kernel modules *must* be recompiled after this change. 145 There-after, modules from a KSE kernel should be compatible with 146 modules from a NOKSE kernel due to the temporary padding fields 147 added to 'struct proc'. 148 14920060929: 150 mrouted and its utilities have been removed from the base system. 151 15220060927: 153 Some ioctl(2) command codes have changed. Full backward ABI 154 compatibility is provided if the "options COMPAT_FREEBSD6" is 155 present in the kernel configuration file. Make sure to add 156 this option to your kernel config file, or recompile X.Org 157 and the rest of ports; otherwise they may refuse to work. 158 15920060924: 160 tcpslice has been removed from the base system. 161 16220060913: 163 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 164 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 165 systat needs to be rebuilt. 166 16720060903: 168 libpcap updated to v0.9.4 and tcpdump to v3.9.4 169 17020060816: 171 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 172 for IPFIREWALL_FORWARD is now as it was before when it was first 173 committed and for years after. The behaviour is now ON. 174 17520060725: 176 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 177 Now it can decrypt files created from different architectures. 178 Unfortunately, it is no longer able to decrypt a cipher text 179 generated with an older version on 64 bit architectures. 180 If you have such a file, you need old utility to decrypt it. 181 18220060709: 183 The interface version of the i4b kernel part has changed. So 184 after updating the kernel sources and compiling a new kernel, 185 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 186 be rebuilt, and vice versa. 187 18820060627: 189 The XBOX kernel now defaults to the nfe(4) driver instead of 190 the nve(4) driver. Please update your configuration 191 accordingly. 192 19320060514: 194 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 195 PCnet family of NICs has been removed. The new le(4) driver serves 196 as an equivalent but cross-platform replacement with the pcn(4) 197 driver still providing performance-optimized support for the subset 198 of AMD Am79C971 PCnet-FAST and greater chips as before. 199 20020060511: 201 The machdep.* sysctls and the adjkerntz utility have been 202 modified a bit. The new adjkerntz utility uses the new 203 sysctl names and sysctlbyname() calls, so it may be impossible 204 to run an old /sbin/adjkerntz utility in single-user mode 205 with a new kernel. Replace the `adjkerntz -i' step before 206 `make installworld' with: 207 208 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 209 210 and proceed as usual with the rest of the installworld-stage 211 steps. Otherwise, you risk installing binaries with their 212 timestamp set several hours in the future, especially if 213 you are running with local time set to GMT+X hours. 214 21520060412: 216 The ip6fw utility has been removed. The behavior provided by 217 ip6fw has been in ipfw2 for a good while and the rc.d scripts 218 have been updated to deal with it. There are some rules that 219 might not migrate cleanly. Use rc.firewall6 as a template to 220 rewrite rules. 221 22220060428: 223 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 224 attachments have been removed. Make sure to configure scc(4) 225 on sparc64. Note also that by default puc(4) will use uart(4) 226 and not sio(4) for serial ports because interrupt handling has 227 been optimized for multi-port serial cards and only uart(4) 228 implements the interface to support it. 229 23020060330: 231 The scc(4) driver replaces puc(4) for Serial Communications 232 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 233 Z8530. On sparc64, it is advised to add scc(4) to the kernel 234 configuration to make sure that the serial ports remain 235 functional. 236 23720060317: 238 Most world/kernel related NO_* build options changed names. 239 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 240 after FreeBSD ports) and should be set in /etc/src.conf 241 (the src.conf(5) manpage is provided). Full backwards 242 compatibility is maintained for the time being though it's 243 highly recommended to start moving old options out of the 244 system-wide /etc/make.conf file into the new /etc/src.conf 245 while also properly renaming them. More conversions will 246 likely follow. Posting to current@: 247 248 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 249 25020060305: 251 The NETSMBCRYPTO kernel option has been retired because its 252 functionality is always included in NETSMB and smbfs.ko now. 253 25420060303: 255 The TDFX_LINUX kernel option was retired and replaced by the 256 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 257 kernel module. Loading it alone should suffice to get 3dfx support 258 for Linux apps because it will pull in 3dfx.ko and linux.ko through 259 its dependencies. 260 26120060204: 262 The 'audit' group was added to support the new auditing functionality 263 in the base system. Be sure to follow the directions for updating, 264 including the requirement to run mergemaster -p. 265 26620060201: 267 The kernel ABI to file system modules was changed on i386. 268 Please make sure that your kernel and modules are in sync. 269 27020060118: 271 This actually occured some time ago, but installing the kernel 272 now also installs a bunch of symbol files for the kernel modules. 273 This increases the size of /boot/kernel to about 67Mbytes. You 274 will need twice this if you will eventually back this up to kernel.old 275 on your next install. 276 If you have a shortage of room in your root partition, you should add 277 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 278 to your /etc/make.conf. 279 28020060113: 281 libc's malloc implementation has been replaced. This change has the 282 potential to uncover application bugs that previously went unnoticed. 283 See the malloc(3) manual page for more details. 284 28520060112: 286 The generic netgraph(4) cookie has been changed. If you upgrade 287 kernel passing this point, you also need to upgrade userland 288 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 289 29020060106: 291 si(4)'s device files now contain the unit number. 292 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 293 29420060106: 295 The kernel ABI was mostly destroyed due to a change in the size 296 of struct lock_object which is nested in other structures such 297 as mutexes which are nested in all sorts of other structures. 298 Make sure your kernel and modules are in sync. 299 30020051231: 301 The page coloring algorithm in the VM subsystem was converted 302 from tuning with kernel options to autotuning. Please remove 303 any PQ_* option except PQ_NOOPT from your kernel config. 304 30520051211: 306 The net80211-related tools in the tools/tools/ath directory 307 have been moved to tools/tools/net80211 and renamed with a 308 "wlan" prefix. Scripts that use them should be adjusted 309 accordingly. 310 31120051202: 312 Scripts in the local_startup directories (as defined in 313 /etc/defaults/rc.conf) that have the new rc.d semantics will 314 now be run as part of the base system rcorder. If there are 315 errors or problems with one of these local scripts, it could 316 cause boot problems. If you encounter such problems, boot in 317 single user mode, remove that script from the */rc.d directory. 318 Please report the problem to the port's maintainer, and the 319 freebsd-ports@freebsd.org mailing list. 320 32120051129: 322 The nodev mount option was deprecated in RELENG_6 (where it 323 was a no-op), and is now unsupported. If you have nodev or dev listed 324 in /etc/fstab, remove it, otherwise it will result in a mount error. 325 32620051129: 327 ABI between ipfw(4) and ipfw(8) has been changed. You need 328 to rebuild ipfw(8) when rebuilding kernel. 329 33020051108: 331 rp(4)'s device files now contain the unit number. 332 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 333 33420051029: 335 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 336 Its /etc/rc.conf.d configuration file has been `ppp' from 337 the beginning, and hence there is no need to touch it. 338 33920051014: 340 Now most modules get their build-time options from the kernel 341 configuration file. A few modules still have fixed options 342 due to their non-conformant implementation, but they will be 343 corrected eventually. You may need to review the options of 344 the modules in use, explicitly specify the non-default options 345 in the kernel configuration file, and rebuild the kernel and 346 modules afterwards. 347 34820051001: 349 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 350 to turn polling(4) on your interfaces. 351 35220050927: 353 The old bridge(4) implementation was retired. The new 354 if_bridge(4) serves as a full functional replacement. 355 35620050722: 357 The ai_addrlen of a struct addrinfo was changed to a socklen_t 358 to conform to POSIX-2001. This change broke an ABI 359 compatibility on 64 bit architecture. You have to recompile 360 userland programs that use getaddrinfo(3) on 64 bit 361 architecture. 362 36320050711: 364 RELENG_6 branched here. 365 36620050629: 367 The pccard_ifconfig rc.conf variable has been removed and a new 368 variable, ifconfig_DEFAULT has been introduced. Unlike 369 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 370 do not have ifconfig_ifn entries rather than just those in 371 removable_interfaces. 372 37320050616: 374 Some previous versions of PAM have permitted the use of 375 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 376 to third party PAM modules in /usr/local/lib. A change has been 377 made to require the use of absolute paths in order to avoid 378 ambiguity and dependence on library path configuration, which may 379 affect existing configurations. 380 38120050610: 382 Major changes to network interface API. All drivers must be 383 recompiled. Drivers not in the base system will need to be 384 updated to the new APIs. 385 38620050609: 387 Changes were made to kinfo_proc in sys/user.h. Please recompile 388 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 389 will not behave correctly. 390 391 The API and ABI for hwpmc(4) have changed with the addition 392 of sampling support. Please recompile lib/libpmc(3) and 393 usr.sbin/{pmcstat,pmccontrol}. 394 39520050606: 396 The OpenBSD dhclient was imported in place of the ISC dhclient 397 and the network interface configuration scripts were updated 398 accordingly. If you use DHCP to configure your interfaces, you 399 must now run devd. Also, DNS updating was lost so you will need 400 to find a workaround if you use this feature. 401 402 The '_dhcp' user was added to support the OpenBSD dhclient. Be 403 sure to run mergemaster -p (like you are supposed to do every time 404 anyway). 405 40620050605: 407 if_bridge was added to the tree. This has changed struct ifnet. 408 Please recompile userland and all network related modules. 409 41020050603: 411 The n_net of a struct netent was changed to an uint32_t, and 412 1st argument of getnetbyaddr() was changed to an uint32_t, to 413 conform to POSIX-2001. These changes broke an ABI 414 compatibility on 64 bit architecture. With these changes, 415 shlib major of libpcap was bumped. You have to recompile 416 userland programs that use getnetbyaddr(3), getnetbyname(3), 417 getnetent(3) and/or libpcap on 64 bit architecture. 418 41920050528: 420 Kernel parsing of extra options on '#!' first lines of shell 421 scripts has changed. Lines with multiple options likely will 422 fail after this date. For full details, please see 423 http://people.freebsd.org/~gad/Updating-20050528.txt 424 42520050503: 426 The packet filter (pf) code has been updated to OpenBSD 3.7 427 Please note the changed anchor syntax and the fact that 428 authpf(8) now needs a mounted fdescfs(5) to function. 429 43020050415: 431 The NO_MIXED_MODE kernel option has been removed from the i386 432 amd64 platforms as its use has been superceded by the new local 433 APIC timer code. Any kernel config files containing this option 434 should be updated. 435 43620050227: 437 The on-disk format of LC_CTYPE files was changed to be machine 438 independent. Please make sure NOT to use NO_CLEAN buildworld 439 when crossing this point. Crossing this point also requires 440 recompile or reinstall of all locale depended packages. 441 44220050225: 443 The ifi_epoch member of struct if_data has been changed to 444 contain the uptime at which the interface was created or the 445 statistics zeroed rather then the wall clock time because 446 wallclock time may go backwards. This should have no impact 447 unless an snmp implementation is using this value (I know of 448 none at this point.) 449 45020050224: 451 The acpi_perf and acpi_throttle drivers are now part of the 452 acpi(4) main module. They are no longer built separately. 453 45420050223: 455 The layout of struct image_params has changed. You have to 456 recompile all compatibility modules (linux, svr4, etc) for use 457 with the new kernel. 458 45920050223: 460 The p4tcc driver has been merged into cpufreq(4). This makes 461 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 462 compile in "device cpufreq" to restore this functionality. 463 46420050220: 465 The responsibility of recomputing the file system summary of 466 a SoftUpdates-enabled dirty volume has been transferred to the 467 background fsck. A rebuild of fsck(8) utility is recommended 468 if you have updated the kernel. 469 470 To get the old behavior (recompute file system summary at mount 471 time), you can set vfs.ffs.compute_summary_at_mount=1 before 472 mounting the new volume. 473 47420050206: 475 The cpufreq import is complete. As part of this, the sysctls for 476 acpi(4) throttling have been removed. The power_profile script 477 has been updated, so you can use performance/economy_cpu_freq in 478 rc.conf(5) to set AC on/offline cpu frequencies. 479 48020050206: 481 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 482 requires recompiling libnetgraph and userland netgraph utilities. 483 48420050114: 485 Support for abbreviated forms of a number of ipfw options is 486 now deprecated. Warnings are printed to stderr indicating the 487 correct full form when a match occurs. Some abbreviations may 488 be supported at a later date based on user feedback. To be 489 considered for support, abbreviations must be in use prior to 490 this commit and unlikely to be confused with current key words. 491 49220041221: 493 By a popular demand, a lot of NOFOO options were renamed 494 to NO_FOO (see bsd.compat.mk for a full list). The old 495 spellings are still supported, but will cause annoying 496 warnings on stderr. Make sure you upgrade properly (see 497 the COMMON ITEMS: section later in this file). 498 49920041219: 500 Auto-loading of ancillary wlan modules such as wlan_wep has 501 been temporarily disabled; you need to statically configure 502 the modules you need into your kernel or explicitly load them 503 prior to use. Specifically, if you intend to use WEP encryption 504 with an 802.11 device load/configure wlan_wep; if you want to 505 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 506 and wlan_xauth as required. 507 50820041213: 509 The behaviour of ppp(8) has changed slightly. If lqr is enabled 510 (``enable lqr''), older versions would revert to LCP ECHO mode on 511 negotiation failure. Now, ``enable echo'' is required for this 512 behaviour. The ppp version number has been bumped to 3.4.2 to 513 reflect the change. 514 51520041201: 516 The wlan support has been updated to split the crypto support 517 into separate modules. For static WEP you must configure the 518 wlan_wep module in your system or build and install the module 519 in place where it can be loaded (the kernel will auto-load 520 the module when a wep key is configured). 521 52220041201: 523 The ath driver has been updated to split the tx rate control 524 algorithm into a separate module. You need to include either 525 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 526 52720041116: 528 Support for systems with an 80386 CPU has been removed. Please 529 use FreeBSD 5.x or earlier on systems with an 80386. 530 53120041110: 532 We have had a hack which would mount the root filesystem 533 R/W if the device were named 'md*'. As part of the vnode 534 work I'm doing I have had to remove this hack. People 535 building systems which use preloaded MD root filesystems 536 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 537 their /etc/rc scripts. 538 53920041104: 540 FreeBSD 5.3 shipped here. 541 54220041102: 543 The size of struct tcpcb has changed again due to the removal 544 of RFC1644 T/TCP. You have to recompile userland programs that 545 read kmem for tcp sockets directly (netstat, sockstat, etc.) 546 54720041022: 548 The size of struct tcpcb has changed. You have to recompile 549 userland programs that read kmem for tcp sockets directly 550 (netstat, sockstat, etc.) 551 55220041016: 553 RELENG_5 branched here. For older entries, please see updating 554 in the RELENG_5 branch. 555 556COMMON ITEMS: 557 558 General Notes 559 ------------- 560 Avoid using make -j when upgrading. From time to time in the 561 past there have been problems using -j with buildworld and/or 562 installworld. This is especially true when upgrading between 563 "distant" versions (eg one that cross a major release boundary 564 or several minor releases, or when several months have passed 565 on the -current branch). 566 567 Sometimes, obscure build problems are the result of environment 568 poisoning. This can happen because the make utility reads its 569 environment when searching for values for global variables. 570 To run your build attempts in an "environmental clean room", 571 prefix all make commands with 'env -i '. See the env(1) manual 572 page for more details. 573 574 When upgrading from one major version to another it is generally 575 best to upgrade to the latest code in the currently installed branch 576 first, then do an upgrade to the new branch. This is the best-tested 577 upgrade path, and has the highest probability of being successful. 578 Please try this approach before reporting problems with a major 579 version upgrade. 580 581 To build a kernel 582 ----------------- 583 If you are updating from a prior version of FreeBSD (even one just 584 a few days old), you should follow this procedure. It is the most 585 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 586 587 make kernel-toolchain 588 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 589 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 590 591 To test a kernel once 592 --------------------- 593 If you just want to boot a kernel once (because you are not sure 594 if it works, or if you want to boot a known bad kernel to provide 595 debugging information) run 596 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 597 nextboot -k testkernel 598 599 To just build a kernel when you know that it won't mess you up 600 -------------------------------------------------------------- 601 This assumes you are already running a 5.X system. Replace 602 ${arch} with the architecture of your machine (e.g. "i386", 603 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 604 605 cd src/sys/${arch}/conf 606 config KERNEL_NAME_HERE 607 cd ../compile/KERNEL_NAME_HERE 608 make depend 609 make 610 make install 611 612 If this fails, go to the "To build a kernel" section. 613 614 To rebuild everything and install it on the current system. 615 ----------------------------------------------------------- 616 # Note: sometimes if you are running current you gotta do more than 617 # is listed here if you are upgrading from a really old current. 618 619 <make sure you have good level 0 dumps> 620 make buildworld 621 make kernel KERNCONF=YOUR_KERNEL_HERE 622 [1] 623 <reboot in single user> [3] 624 mergemaster -p [5] 625 make installworld 626 make delete-old 627 mergemaster [4] 628 <reboot> 629 630 631 To cross-install current onto a separate partition 632 -------------------------------------------------- 633 # In this approach we use a separate partition to hold 634 # current's root, 'usr', and 'var' directories. A partition 635 # holding "/", "/usr" and "/var" should be about 2GB in 636 # size. 637 638 <make sure you have good level 0 dumps> 639 <boot into -stable> 640 make buildworld 641 make buildkernel KERNCONF=YOUR_KERNEL_HERE 642 <maybe newfs current's root partition> 643 <mount current's root partition on directory ${CURRENT_ROOT}> 644 make installworld DESTDIR=${CURRENT_ROOT} 645 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 646 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 647 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 648 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 649 <reboot into current> 650 <do a "native" rebuild/install as described in the previous section> 651 <maybe install compatibility libraries from src/lib/compat> 652 <reboot> 653 654 655 To upgrade in-place from 5.x-stable to current 656 ---------------------------------------------- 657 <make sure you have good level 0 dumps> 658 make buildworld [9] 659 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 660 [1] 661 <reboot in single user> [3] 662 mergemaster -p [5] 663 make installworld 664 make delete-old 665 mergemaster -i [4] 666 <reboot> 667 668 Make sure that you've read the UPDATING file to understand the 669 tweaks to various things you need. At this point in the life 670 cycle of current, things change often and you are on your own 671 to cope. The defaults can also change, so please read ALL of 672 the UPDATING entries. 673 674 Also, if you are tracking -current, you must be subscribed to 675 freebsd-current@freebsd.org. Make sure that before you update 676 your sources that you have read and understood all the recent 677 messages there. If in doubt, please track -stable which has 678 much fewer pitfalls. 679 680 [1] If you have third party modules, such as vmware, you 681 should disable them at this point so they don't crash your 682 system on reboot. 683 684 [3] From the bootblocks, boot -s, and then do 685 fsck -p 686 mount -u / 687 mount -a 688 cd src 689 adjkerntz -i # if CMOS is wall time 690 Also, when doing a major release upgrade, it is required that 691 you boot into single user mode to do the installworld. 692 693 [4] Note: This step is non-optional. Failure to do this step 694 can result in a significant reduction in the functionality of the 695 system. Attempting to do it by hand is not recommended and those 696 that pursue this avenue should read this file carefully, as well 697 as the archives of freebsd-current and freebsd-hackers mailing lists 698 for potential gotchas. 699 700 [5] Usually this step is a noop. However, from time to time 701 you may need to do this if you get unknown user in the following 702 step. It never hurts to do it all the time. You may need to 703 install a new mergemaster (cd src/usr.sbin/mergemaster && make 704 install) after the buildworld before this step if you last updated 705 from current before 20020224 or from -stable before 20020408. 706 707 [8] In order to have a kernel that can run the 4.x binaries 708 needed to do an installworld, you must include the COMPAT_FREEBSD4 709 option in your kernel. Failure to do so may leave you with a system 710 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 711 is required to run the 5.x binaries on more recent kernels. 712 713 Make sure that you merge any new devices from GENERIC since the 714 last time you updated your kernel config file. 715 716 [9] When checking out sources, you must include the -P flag to have 717 cvs prune empty directories. 718 719 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 720 "?=" instead of the "=" assignment operator, so that buildworld can 721 override the CPUTYPE if it needs to. 722 723 MAKEOBJDIRPREFIX must be defined in an environment variable, and 724 not on the command line, or in /etc/make.conf. buildworld will 725 warn if it is improperly defined. 726FORMAT: 727 728This file contains a list, in reverse chronological order, of major 729breakages in tracking -current. Not all things will be listed here, 730and it only starts on October 16, 2004. Updating files can found in 731previous releases if your system is older than this. 732 733Copyright information: 734 735Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 736 737Redistribution, publication, translation and use, with or without 738modification, in full or in part, in any form or format of this 739document are permitted without further permission from the author. 740 741THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 742IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 743WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 744DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 745INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 746(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 747SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 748HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 749STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 750IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 751POSSIBILITY OF SUCH DAMAGE. 752 753If you find this document useful, and you want to, you may buy the 754author a beer. 755 756Contact Warner Losh if you have any questions about your use of 757this document. 758 759$FreeBSD: head/UPDATING 166953 2007-02-24 21:59:18Z simon $ 760