UPDATING revision 172377
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 2420070928: 25 The caching daemon (cached) was renamed to nscd. nscd.conf 26 configuration file should be used instead of cached.conf and 27 nscd_enable, nscd_pidfile and nscd_flags options should be used 28 instead of cached_enable, cached_pidfile and cached_flags in 29 rc.conf. 30 3120070704: 32 The new IPsec code is now compiled in using the IPSEC option. The 33 IPSEC option now requires "device crypto" be defined in your kernel 34 configuration. The FAST_IPSEC kernel option is now deprecated. 35 3620070702: 37 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 38 note the changed syntax - keep state is now on by default. Also 39 note the fact that ftp-proxy(8) has been changed from bottom up and 40 has been moved from libexec to usr/sbin. Changes in the ALTQ 41 handling also affect users of IPFW's ALTQ capabilities. 42 4320070701: 44 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 45 only IPsec supported by FreeBSD. The new IPsec stack 46 supports both IPv4 and IPv6. The kernel option will change 47 after the code changes have settled in. For now the kernel 48 option IPSEC is deprecated and FAST_IPSEC is the only option, that 49 will change after some settling time. 50 5120070701: 52 The wicontrol(8) utility has been removed from the base system. wi(4) 53 cards should be configured using ifconfig(8), see the man page for more 54 information. 55 5620070612: 57 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 58 instead of the nve(4) driver. Please update your configuration 59 accordingly. 60 6120070612: 62 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 63 database if it is missing or older than the aliases file. If 64 desired, set the new rc.conf option sendmail_rebuild_aliases 65 to "YES" to restore that functionality. 66 6720070612: 68 The IPv4 multicast socket code has been considerably modified, and 69 moved to the file sys/netinet/in_mcast.c. Initial support for the 70 RFC 3678 Source-Specific Multicast Socket API has been added to 71 the IPv4 network stack. 72 73 Strict multicast and broadcast reception is now the default for 74 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 75 has now been removed. 76 77 The RFC 1724 hack for interface selection has been removed; the use 78 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 79 been added to replace it. Consumers such as routed will soon be 80 updated to reflect this. 81 82 These changes affect users who are running routed(8) or rdisc(8) 83 from the FreeBSD base system on point-to-point or unnumbered 84 interfaces. 85 8620070610: 87 The net80211 layer has changed significantly and all wireless 88 drivers that depend on it need to be recompiled. Further these 89 changes require that any program that interacts with the wireless 90 support in the kernel be recompiled; this includes: ifconfig, 91 wpa_supplicant, hostapd, and wlanstats. Users must also, for 92 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 93 if they use modules for wireless support. These modules implement 94 scanning support for station and ap modes, respectively. Failure 95 to load the appropriate module before marking a wireless interface 96 up will result in a message to the console and the device not 97 operating properly. 98 9920070610: 100 The pam_nologin(8) module ceases to provide an authentication 101 function and starts providing an account management function. 102 Consequent changes to /etc/pam.d should be brought in using 103 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 104 need manual editing as follows. Locate this line (or similar): 105 106 auth required pam_nologin.so no_warn 107 108 and change it according to this example: 109 110 account required pam_nologin.so no_warn 111 112 That is, the first word needs to be changed from "auth" to 113 "account". The new line can be moved to the account section 114 within the file for clarity. Not updating pam.conf(5) files 115 will result in nologin(5) ignored by the respective services. 116 11720070529: 118 The ether_ioctl() function has been synchronized with ioctl(2) 119 and ifnet.if_ioctl. Due to that, the size of one of its arguments 120 has changed on 64-bit architectures. All kernel modules using 121 ether_ioctl() need to be rebuilt on such architectures. 122 12320070516: 124 Improved INCLUDE_CONFIG_FILE support has been introduced to the 125 config(8) utility. In order to take advantage of this new 126 functionality, you are expected to recompile and install 127 src/usr.sbin/config. If you don't rebuild config(8), and your 128 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 129 build will be broken because of a missing "kernconfstring" 130 symbol. 131 13220070513: 133 Symbol versioning is enabled by default. To disable it, use 134 option WITHOUT_SYMVER. It is not advisable to attempt to 135 disable symbol versioning once it is enabled; your installworld 136 will break because a symbol version-less libc will get installed 137 before the install tools. As a result, the old install tools, 138 which previously had symbol dependencies to FBSD_1.0, will fail 139 because the freshly installed libc will not have them. 140 141 The default threading library has been changed to libthr. If 142 you wish to have libpthread as your default, use option 143 DEFAULT_THREAD_LIB=libpthread for the buildworld. 144 14520070423: 146 The ABI breakage in sendmail(8)'s libmilter has been repaired 147 so it is no longer necessary to recompile mail filters (aka, 148 milters). If you recompiled mail filters after the 20070408 149 note, it is not necessary to recompile them again. 150 15120070417: 152 The new trunk(4) driver has been renamed to lagg(4) as it better 153 reflects its purpose. ifconfig will need to be recompiled. 154 15520070408: 156 sendmail(8) has been updated to version 8.14.1. Mail filters 157 (aka, milters) compiled against the libmilter included in the 158 base operating system should be recompiled. 159 16020070302: 161 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 162 In order to use them one must agree to the respective LICENSE in 163 share/doc/legal and define legal.intel_<name>.license_ack=1 via 164 loader.conf(5) or kenv(1). Make sure to deinstall the now 165 deprecated modules from the respective firmware ports. 166 16720070228: 168 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 169 were removed from FreeBSD's libc. These originally came from INRIA 170 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 171 deprecated in previous releases. 172 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 173 replace it as a more portable (and re-entrant) API. 174 17520070224: 176 To support interrupt filtering a modification to the newbus API 177 has occurred, ABI was broken and __FreeBSD_version was bumped 178 to 700031. Please make sure that your kernel and modules are in 179 sync. For more info: 180 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 181 18220070224: 183 The IPv6 multicast forwarding code may now be loaded into GENERIC 184 kernels by loading the ip_mroute.ko module. This is built into the 185 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 186 set; see src.conf(5) for more information. 187 18820070214: 189 The output of netstat -r has changed. Without -n, we now only 190 print a "network name" without the prefix length if the network 191 address and mask exactly match a Class A/B/C network, and an entry 192 exists in the nsswitch "networks" map. 193 With -n, we print the full unabbreviated CIDR network prefix in 194 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 195 This change is in preparation for changes such as equal-cost 196 multipath, and to more generally assist operational deployment 197 of FreeBSD as a modern IPv4 router. 198 19920070210: 200 PIM has been turned on by default in the IPv4 multicast 201 routing code. The kernel option 'PIM' has now been removed. 202 PIM is now built by default if option 'MROUTING' is specified. 203 It may now be loaded into GENERIC kernels by loading the 204 ip_mroute.ko module. 205 20620070207: 207 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 208 has been removed. Its functionality may be achieved by explicitly 209 configuring gif(4) interfaces and using the 'phyint' keyword in 210 mrouted.conf. 211 XORP does not support source-routed IPv4 multicast tunnels nor the 212 integrated IPIP tunneling, therefore it is not affected by this 213 change. The __FreeBSD_version macro has been bumped to 700030. 214 21520061221: 216 Support for PCI Message Signalled Interrupts has been 217 re-enabled in the bge driver, only for those chips which are 218 believed to support it properly. If there are any problems, 219 MSI can be disabled completely by setting the 220 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 221 in the loader. 222 22320061214: 224 Support for PCI Message Signalled Interrupts has been 225 disabled again in the bge driver. Many revisions of the 226 hardware fail to support it properly. Support can be 227 re-enabled by removing the #define of BGE_DISABLE_MSI in 228 "src/sys/dev/bge/if_bge.c". 229 23020061214: 231 Support for PCI Message Signalled Interrupts has been added 232 to the bge driver. If there are any problems, MSI can be 233 disabled completely by setting the 'hw.pci.enable_msi' and 234 'hw.pci.enable_msix' tunables to 0 in the loader. 235 23620061205: 237 The removal of several facets of the experimental Threading 238 system from the kernel means that the proc and thread structures 239 have changed quite a bit. I suggest all kernel modules that might 240 reference these structures be recompiled.. Especially the 241 linux module. 242 24320061126: 244 Sound infrastructure has been updated with various fixes and 245 improvements. Most of the changes are pretty much transparent, 246 with exceptions of followings: 247 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 248 moved to their own dev sysctl nodes, for example: 249 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 250 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 251 own chardev in the form of "dsp%d.<function>%d", where <function> 252 is p = playback, r = record and v = virtual, respectively. Users 253 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 254 This does not affect those who are using "/dev/dsp". 255 25620061122: 257 The following binaries have been disconnected from the build: 258 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 259 and mount_std. The functionality of these programs has been 260 moved into the mount program. For example, to mount a devfs 261 filesystem, instead of using mount_devfs, use: "mount -t devfs". 262 This does not affect entries in /etc/fstab, since entries in 263 /etc/fstab are always processed with "mount -t fstype". 264 26520061113: 266 Support for PCI Message Signalled Interrupts on i386 and amd64 267 has been added to the kernel and various drivers will soon be 268 updated to use MSI when it is available. If there are any problems, 269 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 270 and 'hw.pci.enable_msix' tunables to 0 in the loader. 271 27220061110: 273 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 274 The lockmgr object layout has been changed as a result of having 275 a lock_object embedded in it. As a consequence all file system 276 kernel modules must be re-compiled. The mutex profiling man page 277 has not yet been updated to reflect this change. 278 27920061026: 280 KSE in the kernel has now been made optional and turned on by 281 default. Use 'nooption KSE' in your kernel config to turn it 282 off. All kernel modules *must* be recompiled after this change. 283 There-after, modules from a KSE kernel should be compatible with 284 modules from a NOKSE kernel due to the temporary padding fields 285 added to 'struct proc'. 286 28720060929: 288 mrouted and its utilities have been removed from the base system. 289 29020060927: 291 Some ioctl(2) command codes have changed. Full backward ABI 292 compatibility is provided if the "options COMPAT_FREEBSD6" is 293 present in the kernel configuration file. Make sure to add 294 this option to your kernel config file, or recompile X.Org 295 and the rest of ports; otherwise they may refuse to work. 296 29720060924: 298 tcpslice has been removed from the base system. 299 30020060913: 301 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 302 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 303 systat needs to be rebuilt. 304 30520060903: 306 libpcap updated to v0.9.4 and tcpdump to v3.9.4 307 30820060816: 309 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 310 for IPFIREWALL_FORWARD is now as it was before when it was first 311 committed and for years after. The behaviour is now ON. 312 31320060725: 314 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 315 Now it can decrypt files created from different architectures. 316 Unfortunately, it is no longer able to decrypt a cipher text 317 generated with an older version on 64 bit architectures. 318 If you have such a file, you need old utility to decrypt it. 319 32020060709: 321 The interface version of the i4b kernel part has changed. So 322 after updating the kernel sources and compiling a new kernel, 323 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 324 be rebuilt, and vice versa. 325 32620060627: 327 The XBOX kernel now defaults to the nfe(4) driver instead of 328 the nve(4) driver. Please update your configuration 329 accordingly. 330 33120060514: 332 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 333 PCnet family of NICs has been removed. The new le(4) driver serves 334 as an equivalent but cross-platform replacement with the pcn(4) 335 driver still providing performance-optimized support for the subset 336 of AMD Am79C971 PCnet-FAST and greater chips as before. 337 33820060511: 339 The machdep.* sysctls and the adjkerntz utility have been 340 modified a bit. The new adjkerntz utility uses the new 341 sysctl names and sysctlbyname() calls, so it may be impossible 342 to run an old /sbin/adjkerntz utility in single-user mode 343 with a new kernel. Replace the `adjkerntz -i' step before 344 `make installworld' with: 345 346 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 347 348 and proceed as usual with the rest of the installworld-stage 349 steps. Otherwise, you risk installing binaries with their 350 timestamp set several hours in the future, especially if 351 you are running with local time set to GMT+X hours. 352 35320060412: 354 The ip6fw utility has been removed. The behavior provided by 355 ip6fw has been in ipfw2 for a good while and the rc.d scripts 356 have been updated to deal with it. There are some rules that 357 might not migrate cleanly. Use rc.firewall6 as a template to 358 rewrite rules. 359 36020060428: 361 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 362 attachments have been removed. Make sure to configure scc(4) 363 on sparc64. Note also that by default puc(4) will use uart(4) 364 and not sio(4) for serial ports because interrupt handling has 365 been optimized for multi-port serial cards and only uart(4) 366 implements the interface to support it. 367 36820060330: 369 The scc(4) driver replaces puc(4) for Serial Communications 370 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 371 Z8530. On sparc64, it is advised to add scc(4) to the kernel 372 configuration to make sure that the serial ports remain 373 functional. 374 37520060317: 376 Most world/kernel related NO_* build options changed names. 377 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 378 after FreeBSD ports) and should be set in /etc/src.conf 379 (the src.conf(5) manpage is provided). Full backwards 380 compatibility is maintained for the time being though it's 381 highly recommended to start moving old options out of the 382 system-wide /etc/make.conf file into the new /etc/src.conf 383 while also properly renaming them. More conversions will 384 likely follow. Posting to current@: 385 386 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 387 38820060305: 389 The NETSMBCRYPTO kernel option has been retired because its 390 functionality is always included in NETSMB and smbfs.ko now. 391 39220060303: 393 The TDFX_LINUX kernel option was retired and replaced by the 394 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 395 kernel module. Loading it alone should suffice to get 3dfx support 396 for Linux apps because it will pull in 3dfx.ko and linux.ko through 397 its dependencies. 398 39920060204: 400 The 'audit' group was added to support the new auditing functionality 401 in the base system. Be sure to follow the directions for updating, 402 including the requirement to run mergemaster -p. 403 40420060201: 405 The kernel ABI to file system modules was changed on i386. 406 Please make sure that your kernel and modules are in sync. 407 40820060118: 409 This actually occured some time ago, but installing the kernel 410 now also installs a bunch of symbol files for the kernel modules. 411 This increases the size of /boot/kernel to about 67Mbytes. You 412 will need twice this if you will eventually back this up to kernel.old 413 on your next install. 414 If you have a shortage of room in your root partition, you should add 415 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 416 to your /etc/make.conf. 417 41820060113: 419 libc's malloc implementation has been replaced. This change has the 420 potential to uncover application bugs that previously went unnoticed. 421 See the malloc(3) manual page for more details. 422 42320060112: 424 The generic netgraph(4) cookie has been changed. If you upgrade 425 kernel passing this point, you also need to upgrade userland 426 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 427 42820060106: 429 si(4)'s device files now contain the unit number. 430 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 431 43220060106: 433 The kernel ABI was mostly destroyed due to a change in the size 434 of struct lock_object which is nested in other structures such 435 as mutexes which are nested in all sorts of other structures. 436 Make sure your kernel and modules are in sync. 437 43820051231: 439 The page coloring algorithm in the VM subsystem was converted 440 from tuning with kernel options to autotuning. Please remove 441 any PQ_* option except PQ_NOOPT from your kernel config. 442 44320051211: 444 The net80211-related tools in the tools/tools/ath directory 445 have been moved to tools/tools/net80211 and renamed with a 446 "wlan" prefix. Scripts that use them should be adjusted 447 accordingly. 448 44920051202: 450 Scripts in the local_startup directories (as defined in 451 /etc/defaults/rc.conf) that have the new rc.d semantics will 452 now be run as part of the base system rcorder. If there are 453 errors or problems with one of these local scripts, it could 454 cause boot problems. If you encounter such problems, boot in 455 single user mode, remove that script from the */rc.d directory. 456 Please report the problem to the port's maintainer, and the 457 freebsd-ports@freebsd.org mailing list. 458 45920051129: 460 The nodev mount option was deprecated in RELENG_6 (where it 461 was a no-op), and is now unsupported. If you have nodev or dev listed 462 in /etc/fstab, remove it, otherwise it will result in a mount error. 463 46420051129: 465 ABI between ipfw(4) and ipfw(8) has been changed. You need 466 to rebuild ipfw(8) when rebuilding kernel. 467 46820051108: 469 rp(4)'s device files now contain the unit number. 470 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 471 47220051029: 473 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 474 Its /etc/rc.conf.d configuration file has been `ppp' from 475 the beginning, and hence there is no need to touch it. 476 47720051014: 478 Now most modules get their build-time options from the kernel 479 configuration file. A few modules still have fixed options 480 due to their non-conformant implementation, but they will be 481 corrected eventually. You may need to review the options of 482 the modules in use, explicitly specify the non-default options 483 in the kernel configuration file, and rebuild the kernel and 484 modules afterwards. 485 48620051001: 487 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 488 to turn polling(4) on your interfaces. 489 49020050927: 491 The old bridge(4) implementation was retired. The new 492 if_bridge(4) serves as a full functional replacement. 493 49420050722: 495 The ai_addrlen of a struct addrinfo was changed to a socklen_t 496 to conform to POSIX-2001. This change broke an ABI 497 compatibility on 64 bit architecture. You have to recompile 498 userland programs that use getaddrinfo(3) on 64 bit 499 architecture. 500 50120050711: 502 RELENG_6 branched here. 503 50420050629: 505 The pccard_ifconfig rc.conf variable has been removed and a new 506 variable, ifconfig_DEFAULT has been introduced. Unlike 507 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 508 do not have ifconfig_ifn entries rather than just those in 509 removable_interfaces. 510 51120050616: 512 Some previous versions of PAM have permitted the use of 513 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 514 to third party PAM modules in /usr/local/lib. A change has been 515 made to require the use of absolute paths in order to avoid 516 ambiguity and dependence on library path configuration, which may 517 affect existing configurations. 518 51920050610: 520 Major changes to network interface API. All drivers must be 521 recompiled. Drivers not in the base system will need to be 522 updated to the new APIs. 523 52420050609: 525 Changes were made to kinfo_proc in sys/user.h. Please recompile 526 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 527 will not behave correctly. 528 529 The API and ABI for hwpmc(4) have changed with the addition 530 of sampling support. Please recompile lib/libpmc(3) and 531 usr.sbin/{pmcstat,pmccontrol}. 532 53320050606: 534 The OpenBSD dhclient was imported in place of the ISC dhclient 535 and the network interface configuration scripts were updated 536 accordingly. If you use DHCP to configure your interfaces, you 537 must now run devd. Also, DNS updating was lost so you will need 538 to find a workaround if you use this feature. 539 540 The '_dhcp' user was added to support the OpenBSD dhclient. Be 541 sure to run mergemaster -p (like you are supposed to do every time 542 anyway). 543 54420050605: 545 if_bridge was added to the tree. This has changed struct ifnet. 546 Please recompile userland and all network related modules. 547 54820050603: 549 The n_net of a struct netent was changed to an uint32_t, and 550 1st argument of getnetbyaddr() was changed to an uint32_t, to 551 conform to POSIX-2001. These changes broke an ABI 552 compatibility on 64 bit architecture. With these changes, 553 shlib major of libpcap was bumped. You have to recompile 554 userland programs that use getnetbyaddr(3), getnetbyname(3), 555 getnetent(3) and/or libpcap on 64 bit architecture. 556 55720050528: 558 Kernel parsing of extra options on '#!' first lines of shell 559 scripts has changed. Lines with multiple options likely will 560 fail after this date. For full details, please see 561 http://people.freebsd.org/~gad/Updating-20050528.txt 562 56320050503: 564 The packet filter (pf) code has been updated to OpenBSD 3.7 565 Please note the changed anchor syntax and the fact that 566 authpf(8) now needs a mounted fdescfs(5) to function. 567 56820050415: 569 The NO_MIXED_MODE kernel option has been removed from the i386 570 amd64 platforms as its use has been superceded by the new local 571 APIC timer code. Any kernel config files containing this option 572 should be updated. 573 57420050227: 575 The on-disk format of LC_CTYPE files was changed to be machine 576 independent. Please make sure NOT to use NO_CLEAN buildworld 577 when crossing this point. Crossing this point also requires 578 recompile or reinstall of all locale depended packages. 579 58020050225: 581 The ifi_epoch member of struct if_data has been changed to 582 contain the uptime at which the interface was created or the 583 statistics zeroed rather then the wall clock time because 584 wallclock time may go backwards. This should have no impact 585 unless an snmp implementation is using this value (I know of 586 none at this point.) 587 58820050224: 589 The acpi_perf and acpi_throttle drivers are now part of the 590 acpi(4) main module. They are no longer built separately. 591 59220050223: 593 The layout of struct image_params has changed. You have to 594 recompile all compatibility modules (linux, svr4, etc) for use 595 with the new kernel. 596 59720050223: 598 The p4tcc driver has been merged into cpufreq(4). This makes 599 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 600 compile in "device cpufreq" to restore this functionality. 601 60220050220: 603 The responsibility of recomputing the file system summary of 604 a SoftUpdates-enabled dirty volume has been transferred to the 605 background fsck. A rebuild of fsck(8) utility is recommended 606 if you have updated the kernel. 607 608 To get the old behavior (recompute file system summary at mount 609 time), you can set vfs.ffs.compute_summary_at_mount=1 before 610 mounting the new volume. 611 61220050206: 613 The cpufreq import is complete. As part of this, the sysctls for 614 acpi(4) throttling have been removed. The power_profile script 615 has been updated, so you can use performance/economy_cpu_freq in 616 rc.conf(5) to set AC on/offline cpu frequencies. 617 61820050206: 619 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 620 requires recompiling libnetgraph and userland netgraph utilities. 621 62220050114: 623 Support for abbreviated forms of a number of ipfw options is 624 now deprecated. Warnings are printed to stderr indicating the 625 correct full form when a match occurs. Some abbreviations may 626 be supported at a later date based on user feedback. To be 627 considered for support, abbreviations must be in use prior to 628 this commit and unlikely to be confused with current key words. 629 63020041221: 631 By a popular demand, a lot of NOFOO options were renamed 632 to NO_FOO (see bsd.compat.mk for a full list). The old 633 spellings are still supported, but will cause annoying 634 warnings on stderr. Make sure you upgrade properly (see 635 the COMMON ITEMS: section later in this file). 636 63720041219: 638 Auto-loading of ancillary wlan modules such as wlan_wep has 639 been temporarily disabled; you need to statically configure 640 the modules you need into your kernel or explicitly load them 641 prior to use. Specifically, if you intend to use WEP encryption 642 with an 802.11 device load/configure wlan_wep; if you want to 643 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 644 and wlan_xauth as required. 645 64620041213: 647 The behaviour of ppp(8) has changed slightly. If lqr is enabled 648 (``enable lqr''), older versions would revert to LCP ECHO mode on 649 negotiation failure. Now, ``enable echo'' is required for this 650 behaviour. The ppp version number has been bumped to 3.4.2 to 651 reflect the change. 652 65320041201: 654 The wlan support has been updated to split the crypto support 655 into separate modules. For static WEP you must configure the 656 wlan_wep module in your system or build and install the module 657 in place where it can be loaded (the kernel will auto-load 658 the module when a wep key is configured). 659 66020041201: 661 The ath driver has been updated to split the tx rate control 662 algorithm into a separate module. You need to include either 663 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 664 66520041116: 666 Support for systems with an 80386 CPU has been removed. Please 667 use FreeBSD 5.x or earlier on systems with an 80386. 668 66920041110: 670 We have had a hack which would mount the root filesystem 671 R/W if the device were named 'md*'. As part of the vnode 672 work I'm doing I have had to remove this hack. People 673 building systems which use preloaded MD root filesystems 674 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 675 their /etc/rc scripts. 676 67720041104: 678 FreeBSD 5.3 shipped here. 679 68020041102: 681 The size of struct tcpcb has changed again due to the removal 682 of RFC1644 T/TCP. You have to recompile userland programs that 683 read kmem for tcp sockets directly (netstat, sockstat, etc.) 684 68520041022: 686 The size of struct tcpcb has changed. You have to recompile 687 userland programs that read kmem for tcp sockets directly 688 (netstat, sockstat, etc.) 689 69020041016: 691 RELENG_5 branched here. For older entries, please see updating 692 in the RELENG_5 branch. 693 694COMMON ITEMS: 695 696 General Notes 697 ------------- 698 Avoid using make -j when upgrading. From time to time in the 699 past there have been problems using -j with buildworld and/or 700 installworld. This is especially true when upgrading between 701 "distant" versions (eg one that cross a major release boundary 702 or several minor releases, or when several months have passed 703 on the -current branch). 704 705 Sometimes, obscure build problems are the result of environment 706 poisoning. This can happen because the make utility reads its 707 environment when searching for values for global variables. 708 To run your build attempts in an "environmental clean room", 709 prefix all make commands with 'env -i '. See the env(1) manual 710 page for more details. 711 712 When upgrading from one major version to another it is generally 713 best to upgrade to the latest code in the currently installed branch 714 first, then do an upgrade to the new branch. This is the best-tested 715 upgrade path, and has the highest probability of being successful. 716 Please try this approach before reporting problems with a major 717 version upgrade. 718 719 To build a kernel 720 ----------------- 721 If you are updating from a prior version of FreeBSD (even one just 722 a few days old), you should follow this procedure. It is the most 723 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 724 725 make kernel-toolchain 726 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 727 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 728 729 To test a kernel once 730 --------------------- 731 If you just want to boot a kernel once (because you are not sure 732 if it works, or if you want to boot a known bad kernel to provide 733 debugging information) run 734 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 735 nextboot -k testkernel 736 737 To just build a kernel when you know that it won't mess you up 738 -------------------------------------------------------------- 739 This assumes you are already running a 5.X system. Replace 740 ${arch} with the architecture of your machine (e.g. "i386", 741 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 742 743 cd src/sys/${arch}/conf 744 config KERNEL_NAME_HERE 745 cd ../compile/KERNEL_NAME_HERE 746 make depend 747 make 748 make install 749 750 If this fails, go to the "To build a kernel" section. 751 752 To rebuild everything and install it on the current system. 753 ----------------------------------------------------------- 754 # Note: sometimes if you are running current you gotta do more than 755 # is listed here if you are upgrading from a really old current. 756 757 <make sure you have good level 0 dumps> 758 make buildworld 759 make kernel KERNCONF=YOUR_KERNEL_HERE 760 [1] 761 <reboot in single user> [3] 762 mergemaster -p [5] 763 make installworld 764 make delete-old 765 mergemaster [4] 766 <reboot> 767 768 769 To cross-install current onto a separate partition 770 -------------------------------------------------- 771 # In this approach we use a separate partition to hold 772 # current's root, 'usr', and 'var' directories. A partition 773 # holding "/", "/usr" and "/var" should be about 2GB in 774 # size. 775 776 <make sure you have good level 0 dumps> 777 <boot into -stable> 778 make buildworld 779 make buildkernel KERNCONF=YOUR_KERNEL_HERE 780 <maybe newfs current's root partition> 781 <mount current's root partition on directory ${CURRENT_ROOT}> 782 make installworld DESTDIR=${CURRENT_ROOT} 783 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 784 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 785 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 786 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 787 <reboot into current> 788 <do a "native" rebuild/install as described in the previous section> 789 <maybe install compatibility libraries from src/lib/compat> 790 <reboot> 791 792 793 To upgrade in-place from 5.x-stable to current 794 ---------------------------------------------- 795 <make sure you have good level 0 dumps> 796 make buildworld [9] 797 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 798 [1] 799 <reboot in single user> [3] 800 mergemaster -p [5] 801 make installworld 802 make delete-old 803 mergemaster -i [4] 804 <reboot> 805 806 Make sure that you've read the UPDATING file to understand the 807 tweaks to various things you need. At this point in the life 808 cycle of current, things change often and you are on your own 809 to cope. The defaults can also change, so please read ALL of 810 the UPDATING entries. 811 812 Also, if you are tracking -current, you must be subscribed to 813 freebsd-current@freebsd.org. Make sure that before you update 814 your sources that you have read and understood all the recent 815 messages there. If in doubt, please track -stable which has 816 much fewer pitfalls. 817 818 [1] If you have third party modules, such as vmware, you 819 should disable them at this point so they don't crash your 820 system on reboot. 821 822 [3] From the bootblocks, boot -s, and then do 823 fsck -p 824 mount -u / 825 mount -a 826 cd src 827 adjkerntz -i # if CMOS is wall time 828 Also, when doing a major release upgrade, it is required that 829 you boot into single user mode to do the installworld. 830 831 [4] Note: This step is non-optional. Failure to do this step 832 can result in a significant reduction in the functionality of the 833 system. Attempting to do it by hand is not recommended and those 834 that pursue this avenue should read this file carefully, as well 835 as the archives of freebsd-current and freebsd-hackers mailing lists 836 for potential gotchas. 837 838 [5] Usually this step is a noop. However, from time to time 839 you may need to do this if you get unknown user in the following 840 step. It never hurts to do it all the time. You may need to 841 install a new mergemaster (cd src/usr.sbin/mergemaster && make 842 install) after the buildworld before this step if you last updated 843 from current before 20020224 or from -stable before 20020408. 844 845 [8] In order to have a kernel that can run the 4.x binaries 846 needed to do an installworld, you must include the COMPAT_FREEBSD4 847 option in your kernel. Failure to do so may leave you with a system 848 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 849 is required to run the 5.x binaries on more recent kernels. 850 851 Make sure that you merge any new devices from GENERIC since the 852 last time you updated your kernel config file. 853 854 [9] When checking out sources, you must include the -P flag to have 855 cvs prune empty directories. 856 857 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 858 "?=" instead of the "=" assignment operator, so that buildworld can 859 override the CPUTYPE if it needs to. 860 861 MAKEOBJDIRPREFIX must be defined in an environment variable, and 862 not on the command line, or in /etc/make.conf. buildworld will 863 warn if it is improperly defined. 864FORMAT: 865 866This file contains a list, in reverse chronological order, of major 867breakages in tracking -current. Not all things will be listed here, 868and it only starts on October 16, 2004. Updating files can found in 869previous releases if your system is older than this. 870 871Copyright information: 872 873Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 874 875Redistribution, publication, translation and use, with or without 876modification, in full or in part, in any form or format of this 877document are permitted without further permission from the author. 878 879THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 880IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 881WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 882DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 883INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 884(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 885SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 886HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 887STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 888IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 889POSSIBILITY OF SUCH DAMAGE. 890 891If you find this document useful, and you want to, you may buy the 892author a beer. 893 894Contact Warner Losh if you have any questions about your use of 895this document. 896 897$FreeBSD: head/UPDATING 172377 2007-09-28 10:38:08Z bushman $ 898