UPDATING revision 168224
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 2420070302: 25 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 26 In order to use them one must agree to the respective LICENSE in 27 share/doc/legal and define legal.<name>.license_ack=1 via 28 loader.conf(5) or kenv(1). Make sure to deinstall the now 29 deprecated modules from the respective firmware ports. 30 3120070228: 32 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 33 were removed from FreeBSD's libc. These originally came from INRIA 34 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 35 deprecated in previous releases. 36 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 37 replace it as a more portable (and re-entrant) API. 38 3920070224: 40 To support interrupt filtering a modification to the newbus API 41 has occurred, ABI was broken and __FreeBSD_version was bumped 42 to 700031. Please make sure that your kernel and modules are in 43 sync. For more info: 44 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 45 4620070224: 47 The IPv6 multicast forwarding code may now be loaded into GENERIC 48 kernels by loading the ip_mroute.ko module. This is built into the 49 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 50 set; see src.conf(5) for more information. 51 5220070214: 53 The output of netstat -r has changed. Without -n, we now only 54 print a "network name" without the prefix length if the network 55 address and mask exactly match a Class A/B/C network, and an entry 56 exists in the nsswitch "networks" map. 57 With -n, we print the full unabbreviated CIDR network prefix in 58 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 59 This change is in preparation for changes such as equal-cost 60 multipath, and to more generally assist operational deployment 61 of FreeBSD as a modern IPv4 router. 62 6320070210: 64 PIM has been turned on by default in the IPv4 multicast 65 routing code. The kernel option 'PIM' has now been removed. 66 PIM is now built by default if option 'MROUTING' is specified. 67 It may now be loaded into GENERIC kernels by loading the 68 ip_mroute.ko module. 69 7020070207: 71 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 72 has been removed. Its functionality may be achieved by explicitly 73 configuring gif(4) interfaces and using the 'phyint' keyword in 74 mrouted.conf. 75 XORP does not support source-routed IPv4 multicast tunnels nor the 76 integrated IPIP tunneling, therefore it is not affected by this 77 change. The __FreeBSD_version macro has been bumped to 700030. 78 7920061221: 80 Support for PCI Message Signalled Interrupts has been 81 re-enabled in the bge driver, only for those chips which are 82 believed to support it properly. If there are any problems, 83 MSI can be disabled completely by setting the 84 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 85 in the loader. 86 8720061214: 88 Support for PCI Message Signalled Interrupts has been 89 disabled again in the bge driver. Many revisions of the 90 hardware fail to support it properly. Support can be 91 re-enabled by removing the #define of BGE_DISABLE_MSI in 92 "src/sys/dev/bge/if_bge.c". 93 9420061214: 95 Support for PCI Message Signalled Interrupts has been added 96 to the bge driver. If there are any problems, MSI can be 97 disabled completely by setting the 'hw.pci.enable_msi' and 98 'hw.pci.enable_msix' tunables to 0 in the loader. 99 10020061205: 101 The removal of several facets of the experimental Threading 102 system from the kernel means that the proc and thread structures 103 have changed quite a bit. I suggest all kernel modules that might 104 reference these structures be recompiled.. Especially the 105 linux module. 106 10720061126: 108 Sound infrastructure has been updated with various fixes and 109 improvements. Most of the changes are pretty much transparent, 110 with exceptions of followings: 111 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 112 moved to their own dev sysctl nodes, for example: 113 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 114 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 115 own chardev in the form of "dsp%d.<function>%d", where <function> 116 is p = playback, r = record and v = virtual, respectively. Users 117 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 118 This does not affect those who are using "/dev/dsp". 119 12020061122: 121 The following binaries have been disconnected from the build: 122 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 123 and mount_std. The functionality of these programs has been 124 moved into the mount program. For example, to mount a devfs 125 filesystem, instead of using mount_devfs, use: "mount -t devfs". 126 This does not affect entries in /etc/fstab, since entries in 127 /etc/fstab are always processed with "mount -t fstype". 128 12920061113: 130 Support for PCI Message Signalled Interrupts on i386 and amd64 131 has been added to the kernel and various drivers will soon be 132 updated to use MSI when it is available. If there are any problems, 133 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 134 and 'hw.pci.enable_msix' tunables to 0 in the loader. 135 13620061110: 137 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 138 The lockmgr object layout has been changed as a result of having 139 a lock_object embedded in it. As a consequence all file system 140 kernel modules must be re-compiled. The mutex profiling man page 141 has not yet been updated to reflect this change. 142 14320061026: 144 KSE in the kernel has now been made optional and turned on by 145 default. Use 'nooption KSE' in your kernel config to turn it 146 off. All kernel modules *must* be recompiled after this change. 147 There-after, modules from a KSE kernel should be compatible with 148 modules from a NOKSE kernel due to the temporary padding fields 149 added to 'struct proc'. 150 15120060929: 152 mrouted and its utilities have been removed from the base system. 153 15420060927: 155 Some ioctl(2) command codes have changed. Full backward ABI 156 compatibility is provided if the "options COMPAT_FREEBSD6" is 157 present in the kernel configuration file. Make sure to add 158 this option to your kernel config file, or recompile X.Org 159 and the rest of ports; otherwise they may refuse to work. 160 16120060924: 162 tcpslice has been removed from the base system. 163 16420060913: 165 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 166 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 167 systat needs to be rebuilt. 168 16920060903: 170 libpcap updated to v0.9.4 and tcpdump to v3.9.4 171 17220060816: 173 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 174 for IPFIREWALL_FORWARD is now as it was before when it was first 175 committed and for years after. The behaviour is now ON. 176 17720060725: 178 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 179 Now it can decrypt files created from different architectures. 180 Unfortunately, it is no longer able to decrypt a cipher text 181 generated with an older version on 64 bit architectures. 182 If you have such a file, you need old utility to decrypt it. 183 18420060709: 185 The interface version of the i4b kernel part has changed. So 186 after updating the kernel sources and compiling a new kernel, 187 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 188 be rebuilt, and vice versa. 189 19020060627: 191 The XBOX kernel now defaults to the nfe(4) driver instead of 192 the nve(4) driver. Please update your configuration 193 accordingly. 194 19520060514: 196 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 197 PCnet family of NICs has been removed. The new le(4) driver serves 198 as an equivalent but cross-platform replacement with the pcn(4) 199 driver still providing performance-optimized support for the subset 200 of AMD Am79C971 PCnet-FAST and greater chips as before. 201 20220060511: 203 The machdep.* sysctls and the adjkerntz utility have been 204 modified a bit. The new adjkerntz utility uses the new 205 sysctl names and sysctlbyname() calls, so it may be impossible 206 to run an old /sbin/adjkerntz utility in single-user mode 207 with a new kernel. Replace the `adjkerntz -i' step before 208 `make installworld' with: 209 210 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 211 212 and proceed as usual with the rest of the installworld-stage 213 steps. Otherwise, you risk installing binaries with their 214 timestamp set several hours in the future, especially if 215 you are running with local time set to GMT+X hours. 216 21720060412: 218 The ip6fw utility has been removed. The behavior provided by 219 ip6fw has been in ipfw2 for a good while and the rc.d scripts 220 have been updated to deal with it. There are some rules that 221 might not migrate cleanly. Use rc.firewall6 as a template to 222 rewrite rules. 223 22420060428: 225 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 226 attachments have been removed. Make sure to configure scc(4) 227 on sparc64. Note also that by default puc(4) will use uart(4) 228 and not sio(4) for serial ports because interrupt handling has 229 been optimized for multi-port serial cards and only uart(4) 230 implements the interface to support it. 231 23220060330: 233 The scc(4) driver replaces puc(4) for Serial Communications 234 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 235 Z8530. On sparc64, it is advised to add scc(4) to the kernel 236 configuration to make sure that the serial ports remain 237 functional. 238 23920060317: 240 Most world/kernel related NO_* build options changed names. 241 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 242 after FreeBSD ports) and should be set in /etc/src.conf 243 (the src.conf(5) manpage is provided). Full backwards 244 compatibility is maintained for the time being though it's 245 highly recommended to start moving old options out of the 246 system-wide /etc/make.conf file into the new /etc/src.conf 247 while also properly renaming them. More conversions will 248 likely follow. Posting to current@: 249 250 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 251 25220060305: 253 The NETSMBCRYPTO kernel option has been retired because its 254 functionality is always included in NETSMB and smbfs.ko now. 255 25620060303: 257 The TDFX_LINUX kernel option was retired and replaced by the 258 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 259 kernel module. Loading it alone should suffice to get 3dfx support 260 for Linux apps because it will pull in 3dfx.ko and linux.ko through 261 its dependencies. 262 26320060204: 264 The 'audit' group was added to support the new auditing functionality 265 in the base system. Be sure to follow the directions for updating, 266 including the requirement to run mergemaster -p. 267 26820060201: 269 The kernel ABI to file system modules was changed on i386. 270 Please make sure that your kernel and modules are in sync. 271 27220060118: 273 This actually occured some time ago, but installing the kernel 274 now also installs a bunch of symbol files for the kernel modules. 275 This increases the size of /boot/kernel to about 67Mbytes. You 276 will need twice this if you will eventually back this up to kernel.old 277 on your next install. 278 If you have a shortage of room in your root partition, you should add 279 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 280 to your /etc/make.conf. 281 28220060113: 283 libc's malloc implementation has been replaced. This change has the 284 potential to uncover application bugs that previously went unnoticed. 285 See the malloc(3) manual page for more details. 286 28720060112: 288 The generic netgraph(4) cookie has been changed. If you upgrade 289 kernel passing this point, you also need to upgrade userland 290 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 291 29220060106: 293 si(4)'s device files now contain the unit number. 294 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 295 29620060106: 297 The kernel ABI was mostly destroyed due to a change in the size 298 of struct lock_object which is nested in other structures such 299 as mutexes which are nested in all sorts of other structures. 300 Make sure your kernel and modules are in sync. 301 30220051231: 303 The page coloring algorithm in the VM subsystem was converted 304 from tuning with kernel options to autotuning. Please remove 305 any PQ_* option except PQ_NOOPT from your kernel config. 306 30720051211: 308 The net80211-related tools in the tools/tools/ath directory 309 have been moved to tools/tools/net80211 and renamed with a 310 "wlan" prefix. Scripts that use them should be adjusted 311 accordingly. 312 31320051202: 314 Scripts in the local_startup directories (as defined in 315 /etc/defaults/rc.conf) that have the new rc.d semantics will 316 now be run as part of the base system rcorder. If there are 317 errors or problems with one of these local scripts, it could 318 cause boot problems. If you encounter such problems, boot in 319 single user mode, remove that script from the */rc.d directory. 320 Please report the problem to the port's maintainer, and the 321 freebsd-ports@freebsd.org mailing list. 322 32320051129: 324 The nodev mount option was deprecated in RELENG_6 (where it 325 was a no-op), and is now unsupported. If you have nodev or dev listed 326 in /etc/fstab, remove it, otherwise it will result in a mount error. 327 32820051129: 329 ABI between ipfw(4) and ipfw(8) has been changed. You need 330 to rebuild ipfw(8) when rebuilding kernel. 331 33220051108: 333 rp(4)'s device files now contain the unit number. 334 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 335 33620051029: 337 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 338 Its /etc/rc.conf.d configuration file has been `ppp' from 339 the beginning, and hence there is no need to touch it. 340 34120051014: 342 Now most modules get their build-time options from the kernel 343 configuration file. A few modules still have fixed options 344 due to their non-conformant implementation, but they will be 345 corrected eventually. You may need to review the options of 346 the modules in use, explicitly specify the non-default options 347 in the kernel configuration file, and rebuild the kernel and 348 modules afterwards. 349 35020051001: 351 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 352 to turn polling(4) on your interfaces. 353 35420050927: 355 The old bridge(4) implementation was retired. The new 356 if_bridge(4) serves as a full functional replacement. 357 35820050722: 359 The ai_addrlen of a struct addrinfo was changed to a socklen_t 360 to conform to POSIX-2001. This change broke an ABI 361 compatibility on 64 bit architecture. You have to recompile 362 userland programs that use getaddrinfo(3) on 64 bit 363 architecture. 364 36520050711: 366 RELENG_6 branched here. 367 36820050629: 369 The pccard_ifconfig rc.conf variable has been removed and a new 370 variable, ifconfig_DEFAULT has been introduced. Unlike 371 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 372 do not have ifconfig_ifn entries rather than just those in 373 removable_interfaces. 374 37520050616: 376 Some previous versions of PAM have permitted the use of 377 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 378 to third party PAM modules in /usr/local/lib. A change has been 379 made to require the use of absolute paths in order to avoid 380 ambiguity and dependence on library path configuration, which may 381 affect existing configurations. 382 38320050610: 384 Major changes to network interface API. All drivers must be 385 recompiled. Drivers not in the base system will need to be 386 updated to the new APIs. 387 38820050609: 389 Changes were made to kinfo_proc in sys/user.h. Please recompile 390 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 391 will not behave correctly. 392 393 The API and ABI for hwpmc(4) have changed with the addition 394 of sampling support. Please recompile lib/libpmc(3) and 395 usr.sbin/{pmcstat,pmccontrol}. 396 39720050606: 398 The OpenBSD dhclient was imported in place of the ISC dhclient 399 and the network interface configuration scripts were updated 400 accordingly. If you use DHCP to configure your interfaces, you 401 must now run devd. Also, DNS updating was lost so you will need 402 to find a workaround if you use this feature. 403 404 The '_dhcp' user was added to support the OpenBSD dhclient. Be 405 sure to run mergemaster -p (like you are supposed to do every time 406 anyway). 407 40820050605: 409 if_bridge was added to the tree. This has changed struct ifnet. 410 Please recompile userland and all network related modules. 411 41220050603: 413 The n_net of a struct netent was changed to an uint32_t, and 414 1st argument of getnetbyaddr() was changed to an uint32_t, to 415 conform to POSIX-2001. These changes broke an ABI 416 compatibility on 64 bit architecture. With these changes, 417 shlib major of libpcap was bumped. You have to recompile 418 userland programs that use getnetbyaddr(3), getnetbyname(3), 419 getnetent(3) and/or libpcap on 64 bit architecture. 420 42120050528: 422 Kernel parsing of extra options on '#!' first lines of shell 423 scripts has changed. Lines with multiple options likely will 424 fail after this date. For full details, please see 425 http://people.freebsd.org/~gad/Updating-20050528.txt 426 42720050503: 428 The packet filter (pf) code has been updated to OpenBSD 3.7 429 Please note the changed anchor syntax and the fact that 430 authpf(8) now needs a mounted fdescfs(5) to function. 431 43220050415: 433 The NO_MIXED_MODE kernel option has been removed from the i386 434 amd64 platforms as its use has been superceded by the new local 435 APIC timer code. Any kernel config files containing this option 436 should be updated. 437 43820050227: 439 The on-disk format of LC_CTYPE files was changed to be machine 440 independent. Please make sure NOT to use NO_CLEAN buildworld 441 when crossing this point. Crossing this point also requires 442 recompile or reinstall of all locale depended packages. 443 44420050225: 445 The ifi_epoch member of struct if_data has been changed to 446 contain the uptime at which the interface was created or the 447 statistics zeroed rather then the wall clock time because 448 wallclock time may go backwards. This should have no impact 449 unless an snmp implementation is using this value (I know of 450 none at this point.) 451 45220050224: 453 The acpi_perf and acpi_throttle drivers are now part of the 454 acpi(4) main module. They are no longer built separately. 455 45620050223: 457 The layout of struct image_params has changed. You have to 458 recompile all compatibility modules (linux, svr4, etc) for use 459 with the new kernel. 460 46120050223: 462 The p4tcc driver has been merged into cpufreq(4). This makes 463 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 464 compile in "device cpufreq" to restore this functionality. 465 46620050220: 467 The responsibility of recomputing the file system summary of 468 a SoftUpdates-enabled dirty volume has been transferred to the 469 background fsck. A rebuild of fsck(8) utility is recommended 470 if you have updated the kernel. 471 472 To get the old behavior (recompute file system summary at mount 473 time), you can set vfs.ffs.compute_summary_at_mount=1 before 474 mounting the new volume. 475 47620050206: 477 The cpufreq import is complete. As part of this, the sysctls for 478 acpi(4) throttling have been removed. The power_profile script 479 has been updated, so you can use performance/economy_cpu_freq in 480 rc.conf(5) to set AC on/offline cpu frequencies. 481 48220050206: 483 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 484 requires recompiling libnetgraph and userland netgraph utilities. 485 48620050114: 487 Support for abbreviated forms of a number of ipfw options is 488 now deprecated. Warnings are printed to stderr indicating the 489 correct full form when a match occurs. Some abbreviations may 490 be supported at a later date based on user feedback. To be 491 considered for support, abbreviations must be in use prior to 492 this commit and unlikely to be confused with current key words. 493 49420041221: 495 By a popular demand, a lot of NOFOO options were renamed 496 to NO_FOO (see bsd.compat.mk for a full list). The old 497 spellings are still supported, but will cause annoying 498 warnings on stderr. Make sure you upgrade properly (see 499 the COMMON ITEMS: section later in this file). 500 50120041219: 502 Auto-loading of ancillary wlan modules such as wlan_wep has 503 been temporarily disabled; you need to statically configure 504 the modules you need into your kernel or explicitly load them 505 prior to use. Specifically, if you intend to use WEP encryption 506 with an 802.11 device load/configure wlan_wep; if you want to 507 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 508 and wlan_xauth as required. 509 51020041213: 511 The behaviour of ppp(8) has changed slightly. If lqr is enabled 512 (``enable lqr''), older versions would revert to LCP ECHO mode on 513 negotiation failure. Now, ``enable echo'' is required for this 514 behaviour. The ppp version number has been bumped to 3.4.2 to 515 reflect the change. 516 51720041201: 518 The wlan support has been updated to split the crypto support 519 into separate modules. For static WEP you must configure the 520 wlan_wep module in your system or build and install the module 521 in place where it can be loaded (the kernel will auto-load 522 the module when a wep key is configured). 523 52420041201: 525 The ath driver has been updated to split the tx rate control 526 algorithm into a separate module. You need to include either 527 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 528 52920041116: 530 Support for systems with an 80386 CPU has been removed. Please 531 use FreeBSD 5.x or earlier on systems with an 80386. 532 53320041110: 534 We have had a hack which would mount the root filesystem 535 R/W if the device were named 'md*'. As part of the vnode 536 work I'm doing I have had to remove this hack. People 537 building systems which use preloaded MD root filesystems 538 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 539 their /etc/rc scripts. 540 54120041104: 542 FreeBSD 5.3 shipped here. 543 54420041102: 545 The size of struct tcpcb has changed again due to the removal 546 of RFC1644 T/TCP. You have to recompile userland programs that 547 read kmem for tcp sockets directly (netstat, sockstat, etc.) 548 54920041022: 550 The size of struct tcpcb has changed. You have to recompile 551 userland programs that read kmem for tcp sockets directly 552 (netstat, sockstat, etc.) 553 55420041016: 555 RELENG_5 branched here. For older entries, please see updating 556 in the RELENG_5 branch. 557 558COMMON ITEMS: 559 560 General Notes 561 ------------- 562 Avoid using make -j when upgrading. From time to time in the 563 past there have been problems using -j with buildworld and/or 564 installworld. This is especially true when upgrading between 565 "distant" versions (eg one that cross a major release boundary 566 or several minor releases, or when several months have passed 567 on the -current branch). 568 569 Sometimes, obscure build problems are the result of environment 570 poisoning. This can happen because the make utility reads its 571 environment when searching for values for global variables. 572 To run your build attempts in an "environmental clean room", 573 prefix all make commands with 'env -i '. See the env(1) manual 574 page for more details. 575 576 When upgrading from one major version to another it is generally 577 best to upgrade to the latest code in the currently installed branch 578 first, then do an upgrade to the new branch. This is the best-tested 579 upgrade path, and has the highest probability of being successful. 580 Please try this approach before reporting problems with a major 581 version upgrade. 582 583 To build a kernel 584 ----------------- 585 If you are updating from a prior version of FreeBSD (even one just 586 a few days old), you should follow this procedure. It is the most 587 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 588 589 make kernel-toolchain 590 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 591 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 592 593 To test a kernel once 594 --------------------- 595 If you just want to boot a kernel once (because you are not sure 596 if it works, or if you want to boot a known bad kernel to provide 597 debugging information) run 598 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 599 nextboot -k testkernel 600 601 To just build a kernel when you know that it won't mess you up 602 -------------------------------------------------------------- 603 This assumes you are already running a 5.X system. Replace 604 ${arch} with the architecture of your machine (e.g. "i386", 605 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 606 607 cd src/sys/${arch}/conf 608 config KERNEL_NAME_HERE 609 cd ../compile/KERNEL_NAME_HERE 610 make depend 611 make 612 make install 613 614 If this fails, go to the "To build a kernel" section. 615 616 To rebuild everything and install it on the current system. 617 ----------------------------------------------------------- 618 # Note: sometimes if you are running current you gotta do more than 619 # is listed here if you are upgrading from a really old current. 620 621 <make sure you have good level 0 dumps> 622 make buildworld 623 make kernel KERNCONF=YOUR_KERNEL_HERE 624 [1] 625 <reboot in single user> [3] 626 mergemaster -p [5] 627 make installworld 628 make delete-old 629 mergemaster [4] 630 <reboot> 631 632 633 To cross-install current onto a separate partition 634 -------------------------------------------------- 635 # In this approach we use a separate partition to hold 636 # current's root, 'usr', and 'var' directories. A partition 637 # holding "/", "/usr" and "/var" should be about 2GB in 638 # size. 639 640 <make sure you have good level 0 dumps> 641 <boot into -stable> 642 make buildworld 643 make buildkernel KERNCONF=YOUR_KERNEL_HERE 644 <maybe newfs current's root partition> 645 <mount current's root partition on directory ${CURRENT_ROOT}> 646 make installworld DESTDIR=${CURRENT_ROOT} 647 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 648 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 649 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 650 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 651 <reboot into current> 652 <do a "native" rebuild/install as described in the previous section> 653 <maybe install compatibility libraries from src/lib/compat> 654 <reboot> 655 656 657 To upgrade in-place from 5.x-stable to current 658 ---------------------------------------------- 659 <make sure you have good level 0 dumps> 660 make buildworld [9] 661 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 662 [1] 663 <reboot in single user> [3] 664 mergemaster -p [5] 665 make installworld 666 make delete-old 667 mergemaster -i [4] 668 <reboot> 669 670 Make sure that you've read the UPDATING file to understand the 671 tweaks to various things you need. At this point in the life 672 cycle of current, things change often and you are on your own 673 to cope. The defaults can also change, so please read ALL of 674 the UPDATING entries. 675 676 Also, if you are tracking -current, you must be subscribed to 677 freebsd-current@freebsd.org. Make sure that before you update 678 your sources that you have read and understood all the recent 679 messages there. If in doubt, please track -stable which has 680 much fewer pitfalls. 681 682 [1] If you have third party modules, such as vmware, you 683 should disable them at this point so they don't crash your 684 system on reboot. 685 686 [3] From the bootblocks, boot -s, and then do 687 fsck -p 688 mount -u / 689 mount -a 690 cd src 691 adjkerntz -i # if CMOS is wall time 692 Also, when doing a major release upgrade, it is required that 693 you boot into single user mode to do the installworld. 694 695 [4] Note: This step is non-optional. Failure to do this step 696 can result in a significant reduction in the functionality of the 697 system. Attempting to do it by hand is not recommended and those 698 that pursue this avenue should read this file carefully, as well 699 as the archives of freebsd-current and freebsd-hackers mailing lists 700 for potential gotchas. 701 702 [5] Usually this step is a noop. However, from time to time 703 you may need to do this if you get unknown user in the following 704 step. It never hurts to do it all the time. You may need to 705 install a new mergemaster (cd src/usr.sbin/mergemaster && make 706 install) after the buildworld before this step if you last updated 707 from current before 20020224 or from -stable before 20020408. 708 709 [8] In order to have a kernel that can run the 4.x binaries 710 needed to do an installworld, you must include the COMPAT_FREEBSD4 711 option in your kernel. Failure to do so may leave you with a system 712 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 713 is required to run the 5.x binaries on more recent kernels. 714 715 Make sure that you merge any new devices from GENERIC since the 716 last time you updated your kernel config file. 717 718 [9] When checking out sources, you must include the -P flag to have 719 cvs prune empty directories. 720 721 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 722 "?=" instead of the "=" assignment operator, so that buildworld can 723 override the CPUTYPE if it needs to. 724 725 MAKEOBJDIRPREFIX must be defined in an environment variable, and 726 not on the command line, or in /etc/make.conf. buildworld will 727 warn if it is improperly defined. 728FORMAT: 729 730This file contains a list, in reverse chronological order, of major 731breakages in tracking -current. Not all things will be listed here, 732and it only starts on October 16, 2004. Updating files can found in 733previous releases if your system is older than this. 734 735Copyright information: 736 737Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 738 739Redistribution, publication, translation and use, with or without 740modification, in full or in part, in any form or format of this 741document are permitted without further permission from the author. 742 743THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 744IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 745WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 746DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 747INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 748(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 749SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 750HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 751STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 752IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 753POSSIBILITY OF SUCH DAMAGE. 754 755If you find this document useful, and you want to, you may buy the 756author a beer. 757 758Contact Warner Losh if you have any questions about your use of 759this document. 760 761$FreeBSD: head/UPDATING 168224 2007-04-01 17:49:27Z mlaier $ 762