UPDATING revision 171269
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 2420070704: 25 The new IPsec code is now compiled in using the IPSEC option. The 26 IPSEC option now requires "device crypto" be defined in your kernel 27 configuration. The FAST_IPSEC kernel option is now deprecated. 28 2920070702: 30 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 31 note the changed syntax - keep state is now on by default. Also 32 note the fact that ftp-proxy(8) has been changed from bottom up and 33 has been moved from libexec to usr/sbin. Changes in the ALTQ 34 handling also affect users of IPFW's ALTQ capabilities. 35 3620070701: 37 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 38 only IPsec supported by FreeBSD. The new IPsec stack 39 supports both IPv4 and IPv6. The kernel option will change 40 after the code changes have settled in. For now the kernel 41 option IPSEC is deprecated and FAST_IPSEC is the only option, that 42 will change after some settling time. 43 4420070701: 45 The wicontrol(8) utility has been removed from the base system. wi(4) 46 cards should be configured using ifconfig(8), see the man page for more 47 information. 48 4920060612: 50 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 51 instead of the nve(4) driver. Please update your configuration 52 accordingly. 53 5420070612: 55 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 56 database if it is missing or older than the aliases file. If 57 desired, set the new rc.conf option sendmail_rebuild_aliases 58 to "YES" to restore that functionality. 59 6020070612: 61 The IPv4 multicast socket code has been considerably modified, and 62 moved to the file sys/netinet/in_mcast.c. Initial support for the 63 RFC 3678 Source-Specific Multicast Socket API has been added to 64 the IPv4 network stack. 65 66 Strict multicast and broadcast reception is now the default for 67 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 68 has now been removed. 69 70 The RFC 1724 hack for interface selection has been removed; the use 71 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 72 been added to replace it. Consumers such as routed will soon be 73 updated to reflect this. 74 75 These changes affect users who are running routed(8) or rdisc(8) 76 from the FreeBSD base system on point-to-point or unnumbered 77 interfaces. 78 7920070610: 80 The net80211 layer has changed significantly and all wireless 81 drivers that depend on it need to be recompiled. Further these 82 changes require that any program that interacts with the wireless 83 support in the kernel be recompiled; this includes: ifconfig, 84 wpa_supplicant, hostapd, and wlanstats. Users must also, for 85 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 86 if they use modules for wireless support. These modules implement 87 scanning support for station and ap modes, respectively. Failure 88 to load the appropriate module before marking a wireless interface 89 up will result in a message to the console and the device not 90 operating properly. 91 9220070610: 93 The pam_nologin(8) module ceases to provide an authentication 94 function and starts providing an account management function. 95 Consequent changes to /etc/pam.d should be brought in using 96 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 97 need manual editing as follows. Locate this line (or similar): 98 99 auth required pam_nologin.so no_warn 100 101 and change it according to this example: 102 103 account required pam_nologin.so no_warn 104 105 That is, the first word needs to be changed from "auth" to 106 "account". The new line can be moved to the account section 107 within the file for clarity. Not updating pam.conf(5) files 108 will result in nologin(5) ignored by the respective services. 109 11020070529: 111 The ether_ioctl() function has been synchronized with ioctl(2) 112 and ifnet.if_ioctl. Due to that, the size of one of its arguments 113 has changed on 64-bit architectures. All kernel modules using 114 ether_ioctl() need to be rebuilt on such architectures. 115 11620070516: 117 Improved INCLUDE_CONFIG_FILE support has been introduced to the 118 config(8) utility. In order to take advantage of this new 119 functionality, you are expected to recompile and install 120 src/usr.sbin/config. If you don't rebuild config(8), and your 121 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 122 build will be broken because of a missing "kernconfstring" 123 symbol. 124 12520070513: 126 Symbol versioning is enabled by default. To disable it, use 127 option WITHOUT_SYMVER. It is not advisable to attempt to 128 disable symbol versioning once it is enabled; your installworld 129 will break because a symbol version-less libc will get installed 130 before the install tools. As a result, the old install tools, 131 which previously had symbol dependencies to FBSD_1.0, will fail 132 because the freshly installed libc will not have them. 133 134 The default threading library has been changed to libthr. If 135 you wish to have libpthread as your default, use option 136 DEFAULT_THREAD_LIB=libpthread for the buildworld. 137 13820070423: 139 The ABI breakage in sendmail(8)'s libmilter has been repaired 140 so it is no longer necessary to recompile mail filters (aka, 141 milters). If you recompiled mail filters after the 20070408 142 note, it is not necessary to recompile them again. 143 14420070417: 145 The new trunk(4) driver has been renamed to lagg(4) as it better 146 reflects its purpose. ifconfig will need to be recompiled. 147 14820070408: 149 sendmail(8) has been updated to version 8.14.1. Mail filters 150 (aka, milters) compiled against the libmilter included in the 151 base operating system should be recompiled. 152 15320070302: 154 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 155 In order to use them one must agree to the respective LICENSE in 156 share/doc/legal and define legal.intel_<name>.license_ack=1 via 157 loader.conf(5) or kenv(1). Make sure to deinstall the now 158 deprecated modules from the respective firmware ports. 159 16020070228: 161 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 162 were removed from FreeBSD's libc. These originally came from INRIA 163 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 164 deprecated in previous releases. 165 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 166 replace it as a more portable (and re-entrant) API. 167 16820070224: 169 To support interrupt filtering a modification to the newbus API 170 has occurred, ABI was broken and __FreeBSD_version was bumped 171 to 700031. Please make sure that your kernel and modules are in 172 sync. For more info: 173 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 174 17520070224: 176 The IPv6 multicast forwarding code may now be loaded into GENERIC 177 kernels by loading the ip_mroute.ko module. This is built into the 178 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 179 set; see src.conf(5) for more information. 180 18120070214: 182 The output of netstat -r has changed. Without -n, we now only 183 print a "network name" without the prefix length if the network 184 address and mask exactly match a Class A/B/C network, and an entry 185 exists in the nsswitch "networks" map. 186 With -n, we print the full unabbreviated CIDR network prefix in 187 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 188 This change is in preparation for changes such as equal-cost 189 multipath, and to more generally assist operational deployment 190 of FreeBSD as a modern IPv4 router. 191 19220070210: 193 PIM has been turned on by default in the IPv4 multicast 194 routing code. The kernel option 'PIM' has now been removed. 195 PIM is now built by default if option 'MROUTING' is specified. 196 It may now be loaded into GENERIC kernels by loading the 197 ip_mroute.ko module. 198 19920070207: 200 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 201 has been removed. Its functionality may be achieved by explicitly 202 configuring gif(4) interfaces and using the 'phyint' keyword in 203 mrouted.conf. 204 XORP does not support source-routed IPv4 multicast tunnels nor the 205 integrated IPIP tunneling, therefore it is not affected by this 206 change. The __FreeBSD_version macro has been bumped to 700030. 207 20820061221: 209 Support for PCI Message Signalled Interrupts has been 210 re-enabled in the bge driver, only for those chips which are 211 believed to support it properly. If there are any problems, 212 MSI can be disabled completely by setting the 213 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 214 in the loader. 215 21620061214: 217 Support for PCI Message Signalled Interrupts has been 218 disabled again in the bge driver. Many revisions of the 219 hardware fail to support it properly. Support can be 220 re-enabled by removing the #define of BGE_DISABLE_MSI in 221 "src/sys/dev/bge/if_bge.c". 222 22320061214: 224 Support for PCI Message Signalled Interrupts has been added 225 to the bge driver. If there are any problems, MSI can be 226 disabled completely by setting the 'hw.pci.enable_msi' and 227 'hw.pci.enable_msix' tunables to 0 in the loader. 228 22920061205: 230 The removal of several facets of the experimental Threading 231 system from the kernel means that the proc and thread structures 232 have changed quite a bit. I suggest all kernel modules that might 233 reference these structures be recompiled.. Especially the 234 linux module. 235 23620061126: 237 Sound infrastructure has been updated with various fixes and 238 improvements. Most of the changes are pretty much transparent, 239 with exceptions of followings: 240 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 241 moved to their own dev sysctl nodes, for example: 242 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 243 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 244 own chardev in the form of "dsp%d.<function>%d", where <function> 245 is p = playback, r = record and v = virtual, respectively. Users 246 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 247 This does not affect those who are using "/dev/dsp". 248 24920061122: 250 The following binaries have been disconnected from the build: 251 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 252 and mount_std. The functionality of these programs has been 253 moved into the mount program. For example, to mount a devfs 254 filesystem, instead of using mount_devfs, use: "mount -t devfs". 255 This does not affect entries in /etc/fstab, since entries in 256 /etc/fstab are always processed with "mount -t fstype". 257 25820061113: 259 Support for PCI Message Signalled Interrupts on i386 and amd64 260 has been added to the kernel and various drivers will soon be 261 updated to use MSI when it is available. If there are any problems, 262 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 263 and 'hw.pci.enable_msix' tunables to 0 in the loader. 264 26520061110: 266 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 267 The lockmgr object layout has been changed as a result of having 268 a lock_object embedded in it. As a consequence all file system 269 kernel modules must be re-compiled. The mutex profiling man page 270 has not yet been updated to reflect this change. 271 27220061026: 273 KSE in the kernel has now been made optional and turned on by 274 default. Use 'nooption KSE' in your kernel config to turn it 275 off. All kernel modules *must* be recompiled after this change. 276 There-after, modules from a KSE kernel should be compatible with 277 modules from a NOKSE kernel due to the temporary padding fields 278 added to 'struct proc'. 279 28020060929: 281 mrouted and its utilities have been removed from the base system. 282 28320060927: 284 Some ioctl(2) command codes have changed. Full backward ABI 285 compatibility is provided if the "options COMPAT_FREEBSD6" is 286 present in the kernel configuration file. Make sure to add 287 this option to your kernel config file, or recompile X.Org 288 and the rest of ports; otherwise they may refuse to work. 289 29020060924: 291 tcpslice has been removed from the base system. 292 29320060913: 294 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 295 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 296 systat needs to be rebuilt. 297 29820060903: 299 libpcap updated to v0.9.4 and tcpdump to v3.9.4 300 30120060816: 302 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 303 for IPFIREWALL_FORWARD is now as it was before when it was first 304 committed and for years after. The behaviour is now ON. 305 30620060725: 307 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 308 Now it can decrypt files created from different architectures. 309 Unfortunately, it is no longer able to decrypt a cipher text 310 generated with an older version on 64 bit architectures. 311 If you have such a file, you need old utility to decrypt it. 312 31320060709: 314 The interface version of the i4b kernel part has changed. So 315 after updating the kernel sources and compiling a new kernel, 316 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 317 be rebuilt, and vice versa. 318 31920060627: 320 The XBOX kernel now defaults to the nfe(4) driver instead of 321 the nve(4) driver. Please update your configuration 322 accordingly. 323 32420060514: 325 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 326 PCnet family of NICs has been removed. The new le(4) driver serves 327 as an equivalent but cross-platform replacement with the pcn(4) 328 driver still providing performance-optimized support for the subset 329 of AMD Am79C971 PCnet-FAST and greater chips as before. 330 33120060511: 332 The machdep.* sysctls and the adjkerntz utility have been 333 modified a bit. The new adjkerntz utility uses the new 334 sysctl names and sysctlbyname() calls, so it may be impossible 335 to run an old /sbin/adjkerntz utility in single-user mode 336 with a new kernel. Replace the `adjkerntz -i' step before 337 `make installworld' with: 338 339 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 340 341 and proceed as usual with the rest of the installworld-stage 342 steps. Otherwise, you risk installing binaries with their 343 timestamp set several hours in the future, especially if 344 you are running with local time set to GMT+X hours. 345 34620060412: 347 The ip6fw utility has been removed. The behavior provided by 348 ip6fw has been in ipfw2 for a good while and the rc.d scripts 349 have been updated to deal with it. There are some rules that 350 might not migrate cleanly. Use rc.firewall6 as a template to 351 rewrite rules. 352 35320060428: 354 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 355 attachments have been removed. Make sure to configure scc(4) 356 on sparc64. Note also that by default puc(4) will use uart(4) 357 and not sio(4) for serial ports because interrupt handling has 358 been optimized for multi-port serial cards and only uart(4) 359 implements the interface to support it. 360 36120060330: 362 The scc(4) driver replaces puc(4) for Serial Communications 363 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 364 Z8530. On sparc64, it is advised to add scc(4) to the kernel 365 configuration to make sure that the serial ports remain 366 functional. 367 36820060317: 369 Most world/kernel related NO_* build options changed names. 370 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 371 after FreeBSD ports) and should be set in /etc/src.conf 372 (the src.conf(5) manpage is provided). Full backwards 373 compatibility is maintained for the time being though it's 374 highly recommended to start moving old options out of the 375 system-wide /etc/make.conf file into the new /etc/src.conf 376 while also properly renaming them. More conversions will 377 likely follow. Posting to current@: 378 379 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 380 38120060305: 382 The NETSMBCRYPTO kernel option has been retired because its 383 functionality is always included in NETSMB and smbfs.ko now. 384 38520060303: 386 The TDFX_LINUX kernel option was retired and replaced by the 387 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 388 kernel module. Loading it alone should suffice to get 3dfx support 389 for Linux apps because it will pull in 3dfx.ko and linux.ko through 390 its dependencies. 391 39220060204: 393 The 'audit' group was added to support the new auditing functionality 394 in the base system. Be sure to follow the directions for updating, 395 including the requirement to run mergemaster -p. 396 39720060201: 398 The kernel ABI to file system modules was changed on i386. 399 Please make sure that your kernel and modules are in sync. 400 40120060118: 402 This actually occured some time ago, but installing the kernel 403 now also installs a bunch of symbol files for the kernel modules. 404 This increases the size of /boot/kernel to about 67Mbytes. You 405 will need twice this if you will eventually back this up to kernel.old 406 on your next install. 407 If you have a shortage of room in your root partition, you should add 408 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 409 to your /etc/make.conf. 410 41120060113: 412 libc's malloc implementation has been replaced. This change has the 413 potential to uncover application bugs that previously went unnoticed. 414 See the malloc(3) manual page for more details. 415 41620060112: 417 The generic netgraph(4) cookie has been changed. If you upgrade 418 kernel passing this point, you also need to upgrade userland 419 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 420 42120060106: 422 si(4)'s device files now contain the unit number. 423 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 424 42520060106: 426 The kernel ABI was mostly destroyed due to a change in the size 427 of struct lock_object which is nested in other structures such 428 as mutexes which are nested in all sorts of other structures. 429 Make sure your kernel and modules are in sync. 430 43120051231: 432 The page coloring algorithm in the VM subsystem was converted 433 from tuning with kernel options to autotuning. Please remove 434 any PQ_* option except PQ_NOOPT from your kernel config. 435 43620051211: 437 The net80211-related tools in the tools/tools/ath directory 438 have been moved to tools/tools/net80211 and renamed with a 439 "wlan" prefix. Scripts that use them should be adjusted 440 accordingly. 441 44220051202: 443 Scripts in the local_startup directories (as defined in 444 /etc/defaults/rc.conf) that have the new rc.d semantics will 445 now be run as part of the base system rcorder. If there are 446 errors or problems with one of these local scripts, it could 447 cause boot problems. If you encounter such problems, boot in 448 single user mode, remove that script from the */rc.d directory. 449 Please report the problem to the port's maintainer, and the 450 freebsd-ports@freebsd.org mailing list. 451 45220051129: 453 The nodev mount option was deprecated in RELENG_6 (where it 454 was a no-op), and is now unsupported. If you have nodev or dev listed 455 in /etc/fstab, remove it, otherwise it will result in a mount error. 456 45720051129: 458 ABI between ipfw(4) and ipfw(8) has been changed. You need 459 to rebuild ipfw(8) when rebuilding kernel. 460 46120051108: 462 rp(4)'s device files now contain the unit number. 463 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 464 46520051029: 466 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 467 Its /etc/rc.conf.d configuration file has been `ppp' from 468 the beginning, and hence there is no need to touch it. 469 47020051014: 471 Now most modules get their build-time options from the kernel 472 configuration file. A few modules still have fixed options 473 due to their non-conformant implementation, but they will be 474 corrected eventually. You may need to review the options of 475 the modules in use, explicitly specify the non-default options 476 in the kernel configuration file, and rebuild the kernel and 477 modules afterwards. 478 47920051001: 480 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 481 to turn polling(4) on your interfaces. 482 48320050927: 484 The old bridge(4) implementation was retired. The new 485 if_bridge(4) serves as a full functional replacement. 486 48720050722: 488 The ai_addrlen of a struct addrinfo was changed to a socklen_t 489 to conform to POSIX-2001. This change broke an ABI 490 compatibility on 64 bit architecture. You have to recompile 491 userland programs that use getaddrinfo(3) on 64 bit 492 architecture. 493 49420050711: 495 RELENG_6 branched here. 496 49720050629: 498 The pccard_ifconfig rc.conf variable has been removed and a new 499 variable, ifconfig_DEFAULT has been introduced. Unlike 500 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 501 do not have ifconfig_ifn entries rather than just those in 502 removable_interfaces. 503 50420050616: 505 Some previous versions of PAM have permitted the use of 506 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 507 to third party PAM modules in /usr/local/lib. A change has been 508 made to require the use of absolute paths in order to avoid 509 ambiguity and dependence on library path configuration, which may 510 affect existing configurations. 511 51220050610: 513 Major changes to network interface API. All drivers must be 514 recompiled. Drivers not in the base system will need to be 515 updated to the new APIs. 516 51720050609: 518 Changes were made to kinfo_proc in sys/user.h. Please recompile 519 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 520 will not behave correctly. 521 522 The API and ABI for hwpmc(4) have changed with the addition 523 of sampling support. Please recompile lib/libpmc(3) and 524 usr.sbin/{pmcstat,pmccontrol}. 525 52620050606: 527 The OpenBSD dhclient was imported in place of the ISC dhclient 528 and the network interface configuration scripts were updated 529 accordingly. If you use DHCP to configure your interfaces, you 530 must now run devd. Also, DNS updating was lost so you will need 531 to find a workaround if you use this feature. 532 533 The '_dhcp' user was added to support the OpenBSD dhclient. Be 534 sure to run mergemaster -p (like you are supposed to do every time 535 anyway). 536 53720050605: 538 if_bridge was added to the tree. This has changed struct ifnet. 539 Please recompile userland and all network related modules. 540 54120050603: 542 The n_net of a struct netent was changed to an uint32_t, and 543 1st argument of getnetbyaddr() was changed to an uint32_t, to 544 conform to POSIX-2001. These changes broke an ABI 545 compatibility on 64 bit architecture. With these changes, 546 shlib major of libpcap was bumped. You have to recompile 547 userland programs that use getnetbyaddr(3), getnetbyname(3), 548 getnetent(3) and/or libpcap on 64 bit architecture. 549 55020050528: 551 Kernel parsing of extra options on '#!' first lines of shell 552 scripts has changed. Lines with multiple options likely will 553 fail after this date. For full details, please see 554 http://people.freebsd.org/~gad/Updating-20050528.txt 555 55620050503: 557 The packet filter (pf) code has been updated to OpenBSD 3.7 558 Please note the changed anchor syntax and the fact that 559 authpf(8) now needs a mounted fdescfs(5) to function. 560 56120050415: 562 The NO_MIXED_MODE kernel option has been removed from the i386 563 amd64 platforms as its use has been superceded by the new local 564 APIC timer code. Any kernel config files containing this option 565 should be updated. 566 56720050227: 568 The on-disk format of LC_CTYPE files was changed to be machine 569 independent. Please make sure NOT to use NO_CLEAN buildworld 570 when crossing this point. Crossing this point also requires 571 recompile or reinstall of all locale depended packages. 572 57320050225: 574 The ifi_epoch member of struct if_data has been changed to 575 contain the uptime at which the interface was created or the 576 statistics zeroed rather then the wall clock time because 577 wallclock time may go backwards. This should have no impact 578 unless an snmp implementation is using this value (I know of 579 none at this point.) 580 58120050224: 582 The acpi_perf and acpi_throttle drivers are now part of the 583 acpi(4) main module. They are no longer built separately. 584 58520050223: 586 The layout of struct image_params has changed. You have to 587 recompile all compatibility modules (linux, svr4, etc) for use 588 with the new kernel. 589 59020050223: 591 The p4tcc driver has been merged into cpufreq(4). This makes 592 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 593 compile in "device cpufreq" to restore this functionality. 594 59520050220: 596 The responsibility of recomputing the file system summary of 597 a SoftUpdates-enabled dirty volume has been transferred to the 598 background fsck. A rebuild of fsck(8) utility is recommended 599 if you have updated the kernel. 600 601 To get the old behavior (recompute file system summary at mount 602 time), you can set vfs.ffs.compute_summary_at_mount=1 before 603 mounting the new volume. 604 60520050206: 606 The cpufreq import is complete. As part of this, the sysctls for 607 acpi(4) throttling have been removed. The power_profile script 608 has been updated, so you can use performance/economy_cpu_freq in 609 rc.conf(5) to set AC on/offline cpu frequencies. 610 61120050206: 612 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 613 requires recompiling libnetgraph and userland netgraph utilities. 614 61520050114: 616 Support for abbreviated forms of a number of ipfw options is 617 now deprecated. Warnings are printed to stderr indicating the 618 correct full form when a match occurs. Some abbreviations may 619 be supported at a later date based on user feedback. To be 620 considered for support, abbreviations must be in use prior to 621 this commit and unlikely to be confused with current key words. 622 62320041221: 624 By a popular demand, a lot of NOFOO options were renamed 625 to NO_FOO (see bsd.compat.mk for a full list). The old 626 spellings are still supported, but will cause annoying 627 warnings on stderr. Make sure you upgrade properly (see 628 the COMMON ITEMS: section later in this file). 629 63020041219: 631 Auto-loading of ancillary wlan modules such as wlan_wep has 632 been temporarily disabled; you need to statically configure 633 the modules you need into your kernel or explicitly load them 634 prior to use. Specifically, if you intend to use WEP encryption 635 with an 802.11 device load/configure wlan_wep; if you want to 636 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 637 and wlan_xauth as required. 638 63920041213: 640 The behaviour of ppp(8) has changed slightly. If lqr is enabled 641 (``enable lqr''), older versions would revert to LCP ECHO mode on 642 negotiation failure. Now, ``enable echo'' is required for this 643 behaviour. The ppp version number has been bumped to 3.4.2 to 644 reflect the change. 645 64620041201: 647 The wlan support has been updated to split the crypto support 648 into separate modules. For static WEP you must configure the 649 wlan_wep module in your system or build and install the module 650 in place where it can be loaded (the kernel will auto-load 651 the module when a wep key is configured). 652 65320041201: 654 The ath driver has been updated to split the tx rate control 655 algorithm into a separate module. You need to include either 656 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 657 65820041116: 659 Support for systems with an 80386 CPU has been removed. Please 660 use FreeBSD 5.x or earlier on systems with an 80386. 661 66220041110: 663 We have had a hack which would mount the root filesystem 664 R/W if the device were named 'md*'. As part of the vnode 665 work I'm doing I have had to remove this hack. People 666 building systems which use preloaded MD root filesystems 667 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 668 their /etc/rc scripts. 669 67020041104: 671 FreeBSD 5.3 shipped here. 672 67320041102: 674 The size of struct tcpcb has changed again due to the removal 675 of RFC1644 T/TCP. You have to recompile userland programs that 676 read kmem for tcp sockets directly (netstat, sockstat, etc.) 677 67820041022: 679 The size of struct tcpcb has changed. You have to recompile 680 userland programs that read kmem for tcp sockets directly 681 (netstat, sockstat, etc.) 682 68320041016: 684 RELENG_5 branched here. For older entries, please see updating 685 in the RELENG_5 branch. 686 687COMMON ITEMS: 688 689 General Notes 690 ------------- 691 Avoid using make -j when upgrading. From time to time in the 692 past there have been problems using -j with buildworld and/or 693 installworld. This is especially true when upgrading between 694 "distant" versions (eg one that cross a major release boundary 695 or several minor releases, or when several months have passed 696 on the -current branch). 697 698 Sometimes, obscure build problems are the result of environment 699 poisoning. This can happen because the make utility reads its 700 environment when searching for values for global variables. 701 To run your build attempts in an "environmental clean room", 702 prefix all make commands with 'env -i '. See the env(1) manual 703 page for more details. 704 705 When upgrading from one major version to another it is generally 706 best to upgrade to the latest code in the currently installed branch 707 first, then do an upgrade to the new branch. This is the best-tested 708 upgrade path, and has the highest probability of being successful. 709 Please try this approach before reporting problems with a major 710 version upgrade. 711 712 To build a kernel 713 ----------------- 714 If you are updating from a prior version of FreeBSD (even one just 715 a few days old), you should follow this procedure. It is the most 716 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 717 718 make kernel-toolchain 719 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 720 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 721 722 To test a kernel once 723 --------------------- 724 If you just want to boot a kernel once (because you are not sure 725 if it works, or if you want to boot a known bad kernel to provide 726 debugging information) run 727 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 728 nextboot -k testkernel 729 730 To just build a kernel when you know that it won't mess you up 731 -------------------------------------------------------------- 732 This assumes you are already running a 5.X system. Replace 733 ${arch} with the architecture of your machine (e.g. "i386", 734 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 735 736 cd src/sys/${arch}/conf 737 config KERNEL_NAME_HERE 738 cd ../compile/KERNEL_NAME_HERE 739 make depend 740 make 741 make install 742 743 If this fails, go to the "To build a kernel" section. 744 745 To rebuild everything and install it on the current system. 746 ----------------------------------------------------------- 747 # Note: sometimes if you are running current you gotta do more than 748 # is listed here if you are upgrading from a really old current. 749 750 <make sure you have good level 0 dumps> 751 make buildworld 752 make kernel KERNCONF=YOUR_KERNEL_HERE 753 [1] 754 <reboot in single user> [3] 755 mergemaster -p [5] 756 make installworld 757 make delete-old 758 mergemaster [4] 759 <reboot> 760 761 762 To cross-install current onto a separate partition 763 -------------------------------------------------- 764 # In this approach we use a separate partition to hold 765 # current's root, 'usr', and 'var' directories. A partition 766 # holding "/", "/usr" and "/var" should be about 2GB in 767 # size. 768 769 <make sure you have good level 0 dumps> 770 <boot into -stable> 771 make buildworld 772 make buildkernel KERNCONF=YOUR_KERNEL_HERE 773 <maybe newfs current's root partition> 774 <mount current's root partition on directory ${CURRENT_ROOT}> 775 make installworld DESTDIR=${CURRENT_ROOT} 776 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 777 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 778 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 779 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 780 <reboot into current> 781 <do a "native" rebuild/install as described in the previous section> 782 <maybe install compatibility libraries from src/lib/compat> 783 <reboot> 784 785 786 To upgrade in-place from 5.x-stable to current 787 ---------------------------------------------- 788 <make sure you have good level 0 dumps> 789 make buildworld [9] 790 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 791 [1] 792 <reboot in single user> [3] 793 mergemaster -p [5] 794 make installworld 795 make delete-old 796 mergemaster -i [4] 797 <reboot> 798 799 Make sure that you've read the UPDATING file to understand the 800 tweaks to various things you need. At this point in the life 801 cycle of current, things change often and you are on your own 802 to cope. The defaults can also change, so please read ALL of 803 the UPDATING entries. 804 805 Also, if you are tracking -current, you must be subscribed to 806 freebsd-current@freebsd.org. Make sure that before you update 807 your sources that you have read and understood all the recent 808 messages there. If in doubt, please track -stable which has 809 much fewer pitfalls. 810 811 [1] If you have third party modules, such as vmware, you 812 should disable them at this point so they don't crash your 813 system on reboot. 814 815 [3] From the bootblocks, boot -s, and then do 816 fsck -p 817 mount -u / 818 mount -a 819 cd src 820 adjkerntz -i # if CMOS is wall time 821 Also, when doing a major release upgrade, it is required that 822 you boot into single user mode to do the installworld. 823 824 [4] Note: This step is non-optional. Failure to do this step 825 can result in a significant reduction in the functionality of the 826 system. Attempting to do it by hand is not recommended and those 827 that pursue this avenue should read this file carefully, as well 828 as the archives of freebsd-current and freebsd-hackers mailing lists 829 for potential gotchas. 830 831 [5] Usually this step is a noop. However, from time to time 832 you may need to do this if you get unknown user in the following 833 step. It never hurts to do it all the time. You may need to 834 install a new mergemaster (cd src/usr.sbin/mergemaster && make 835 install) after the buildworld before this step if you last updated 836 from current before 20020224 or from -stable before 20020408. 837 838 [8] In order to have a kernel that can run the 4.x binaries 839 needed to do an installworld, you must include the COMPAT_FREEBSD4 840 option in your kernel. Failure to do so may leave you with a system 841 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 842 is required to run the 5.x binaries on more recent kernels. 843 844 Make sure that you merge any new devices from GENERIC since the 845 last time you updated your kernel config file. 846 847 [9] When checking out sources, you must include the -P flag to have 848 cvs prune empty directories. 849 850 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 851 "?=" instead of the "=" assignment operator, so that buildworld can 852 override the CPUTYPE if it needs to. 853 854 MAKEOBJDIRPREFIX must be defined in an environment variable, and 855 not on the command line, or in /etc/make.conf. buildworld will 856 warn if it is improperly defined. 857FORMAT: 858 859This file contains a list, in reverse chronological order, of major 860breakages in tracking -current. Not all things will be listed here, 861and it only starts on October 16, 2004. Updating files can found in 862previous releases if your system is older than this. 863 864Copyright information: 865 866Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 867 868Redistribution, publication, translation and use, with or without 869modification, in full or in part, in any form or format of this 870document are permitted without further permission from the author. 871 872THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 873IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 874WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 875DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 876INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 877(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 878SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 879HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 880STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 881IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 882POSSIBILITY OF SUCH DAMAGE. 883 884If you find this document useful, and you want to, you may buy the 885author a beer. 886 887Contact Warner Losh if you have any questions about your use of 888this document. 889 890$FreeBSD: head/UPDATING 171269 2007-07-06 06:35:50Z yongari $ 891