UPDATING revision 170613
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 2420070612: 25 The IPv4 multicast socket code has been considerably modified, and 26 moved to the file sys/netinet/in_mcast.c. Initial support for the 27 RFC 3678 Source-Specific Multicast Socket API has been added to 28 the IPv4 network stack. 29 30 Strict multicast and broadcast reception is now the default for 31 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 32 has now been removed. 33 34 The RFC 1724 hack for interface selection has been removed; the use 35 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 36 been added to replace it. Consumers such as routed will soon be 37 updated to reflect this. 38 39 These changes affect users who are running routed(8) or rdisc(8) 40 from the FreeBSD base system on point-to-point or unnumbered 41 interfaces. 42 4320070610: 44 The net80211 layer has changed significantly and all wireless 45 drivers that depend on it need to be recompiled. Further these 46 changes require that any program that interacts with the wireless 47 support in the kernel be recompiled; this includes: ifconfig, 48 wpa_supplicant, hostapd, and wlanstats. Users must also, for 49 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 50 if they use modules for wireless support. These modules implement 51 scanning support for station and ap modes, respectively. Failure 52 to load the appropriate module before marking a wireless interface 53 up will result in a message to the console and the device not 54 operating properly. 55 5620070610: 57 The pam_nologin(8) module ceases to provide an authentication 58 function and starts providing an account management function. 59 Consequent changes to /etc/pam.d should be brought in using 60 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 61 need manual editing as follows. Locate this line (or similar): 62 63 auth required pam_nologin.so no_warn 64 65 and change it according to this example: 66 67 account required pam_nologin.so no_warn 68 69 That is, the first word needs to be changed from "auth" to 70 "account". The new line can be moved to the account section 71 within the file for clarity. Not updating pam.conf(5) files 72 will result in nologin(5) ignored by the respective services. 73 7420070529: 75 The ether_ioctl() function has been synchronized with ioctl(2) 76 and ifnet.if_ioctl. Due to that, the size of one of its arguments 77 has changed on 64-bit architectures. All kernel modules using 78 ether_ioctl() need to be rebuilt on such architectures. 79 8020070516: 81 Improved INCLUDE_CONFIG_FILE support has been introduced to the 82 config(8) utility. In order to take advantage of this new 83 functionality, you are expected to recompile and install 84 src/usr.sbin/config. If you don't rebuild config(8), and your 85 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 86 build will be broken because of a missing "kernconfstring" 87 symbol. 88 8920070513: 90 Symbol versioning is enabled by default. To disable it, use 91 option WITHOUT_SYMVER. It is not advisable to attempt to 92 disable symbol versioning once it is enabled; your installworld 93 will break because a symbol version-less libc will get installed 94 before the install tools. As a result, the old install tools, 95 which previously had symbol dependencies to FBSD_1.0, will fail 96 because the freshly installed libc will not have them. 97 98 The default threading library has been changed to libthr. If 99 you wish to have libpthread as your default, use option 100 DEFAULT_THREAD_LIB=libpthread for the buildworld. 101 10220070423: 103 The ABI breakage in sendmail(8)'s libmilter has been repaired 104 so it is no longer necessary to recompile mail filters (aka, 105 milters). If you recompiled mail filters after the 20070408 106 note, it is not necessary to recompile them again. 107 10820070417: 109 The new trunk(4) driver has been renamed to lagg(4) as it better 110 reflects its purpose. ifconfig will need to be recompiled. 111 11220070408: 113 sendmail(8) has been updated to version 8.14.1. Mail filters 114 (aka, milters) compiled against the libmilter included in the 115 base operating system should be recompiled. 116 11720070302: 118 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 119 In order to use them one must agree to the respective LICENSE in 120 share/doc/legal and define legal.intel_<name>.license_ack=1 via 121 loader.conf(5) or kenv(1). Make sure to deinstall the now 122 deprecated modules from the respective firmware ports. 123 12420070228: 125 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 126 were removed from FreeBSD's libc. These originally came from INRIA 127 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 128 deprecated in previous releases. 129 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 130 replace it as a more portable (and re-entrant) API. 131 13220070224: 133 To support interrupt filtering a modification to the newbus API 134 has occurred, ABI was broken and __FreeBSD_version was bumped 135 to 700031. Please make sure that your kernel and modules are in 136 sync. For more info: 137 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 138 13920070224: 140 The IPv6 multicast forwarding code may now be loaded into GENERIC 141 kernels by loading the ip_mroute.ko module. This is built into the 142 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 143 set; see src.conf(5) for more information. 144 14520070214: 146 The output of netstat -r has changed. Without -n, we now only 147 print a "network name" without the prefix length if the network 148 address and mask exactly match a Class A/B/C network, and an entry 149 exists in the nsswitch "networks" map. 150 With -n, we print the full unabbreviated CIDR network prefix in 151 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 152 This change is in preparation for changes such as equal-cost 153 multipath, and to more generally assist operational deployment 154 of FreeBSD as a modern IPv4 router. 155 15620070210: 157 PIM has been turned on by default in the IPv4 multicast 158 routing code. The kernel option 'PIM' has now been removed. 159 PIM is now built by default if option 'MROUTING' is specified. 160 It may now be loaded into GENERIC kernels by loading the 161 ip_mroute.ko module. 162 16320070207: 164 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 165 has been removed. Its functionality may be achieved by explicitly 166 configuring gif(4) interfaces and using the 'phyint' keyword in 167 mrouted.conf. 168 XORP does not support source-routed IPv4 multicast tunnels nor the 169 integrated IPIP tunneling, therefore it is not affected by this 170 change. The __FreeBSD_version macro has been bumped to 700030. 171 17220061221: 173 Support for PCI Message Signalled Interrupts has been 174 re-enabled in the bge driver, only for those chips which are 175 believed to support it properly. If there are any problems, 176 MSI can be disabled completely by setting the 177 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 178 in the loader. 179 18020061214: 181 Support for PCI Message Signalled Interrupts has been 182 disabled again in the bge driver. Many revisions of the 183 hardware fail to support it properly. Support can be 184 re-enabled by removing the #define of BGE_DISABLE_MSI in 185 "src/sys/dev/bge/if_bge.c". 186 18720061214: 188 Support for PCI Message Signalled Interrupts has been added 189 to the bge driver. If there are any problems, MSI can be 190 disabled completely by setting the 'hw.pci.enable_msi' and 191 'hw.pci.enable_msix' tunables to 0 in the loader. 192 19320061205: 194 The removal of several facets of the experimental Threading 195 system from the kernel means that the proc and thread structures 196 have changed quite a bit. I suggest all kernel modules that might 197 reference these structures be recompiled.. Especially the 198 linux module. 199 20020061126: 201 Sound infrastructure has been updated with various fixes and 202 improvements. Most of the changes are pretty much transparent, 203 with exceptions of followings: 204 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 205 moved to their own dev sysctl nodes, for example: 206 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 207 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 208 own chardev in the form of "dsp%d.<function>%d", where <function> 209 is p = playback, r = record and v = virtual, respectively. Users 210 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 211 This does not affect those who are using "/dev/dsp". 212 21320061122: 214 The following binaries have been disconnected from the build: 215 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 216 and mount_std. The functionality of these programs has been 217 moved into the mount program. For example, to mount a devfs 218 filesystem, instead of using mount_devfs, use: "mount -t devfs". 219 This does not affect entries in /etc/fstab, since entries in 220 /etc/fstab are always processed with "mount -t fstype". 221 22220061113: 223 Support for PCI Message Signalled Interrupts on i386 and amd64 224 has been added to the kernel and various drivers will soon be 225 updated to use MSI when it is available. If there are any problems, 226 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 227 and 'hw.pci.enable_msix' tunables to 0 in the loader. 228 22920061110: 230 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 231 The lockmgr object layout has been changed as a result of having 232 a lock_object embedded in it. As a consequence all file system 233 kernel modules must be re-compiled. The mutex profiling man page 234 has not yet been updated to reflect this change. 235 23620061026: 237 KSE in the kernel has now been made optional and turned on by 238 default. Use 'nooption KSE' in your kernel config to turn it 239 off. All kernel modules *must* be recompiled after this change. 240 There-after, modules from a KSE kernel should be compatible with 241 modules from a NOKSE kernel due to the temporary padding fields 242 added to 'struct proc'. 243 24420060929: 245 mrouted and its utilities have been removed from the base system. 246 24720060927: 248 Some ioctl(2) command codes have changed. Full backward ABI 249 compatibility is provided if the "options COMPAT_FREEBSD6" is 250 present in the kernel configuration file. Make sure to add 251 this option to your kernel config file, or recompile X.Org 252 and the rest of ports; otherwise they may refuse to work. 253 25420060924: 255 tcpslice has been removed from the base system. 256 25720060913: 258 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 259 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 260 systat needs to be rebuilt. 261 26220060903: 263 libpcap updated to v0.9.4 and tcpdump to v3.9.4 264 26520060816: 266 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 267 for IPFIREWALL_FORWARD is now as it was before when it was first 268 committed and for years after. The behaviour is now ON. 269 27020060725: 271 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 272 Now it can decrypt files created from different architectures. 273 Unfortunately, it is no longer able to decrypt a cipher text 274 generated with an older version on 64 bit architectures. 275 If you have such a file, you need old utility to decrypt it. 276 27720060709: 278 The interface version of the i4b kernel part has changed. So 279 after updating the kernel sources and compiling a new kernel, 280 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 281 be rebuilt, and vice versa. 282 28320060627: 284 The XBOX kernel now defaults to the nfe(4) driver instead of 285 the nve(4) driver. Please update your configuration 286 accordingly. 287 28820060514: 289 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 290 PCnet family of NICs has been removed. The new le(4) driver serves 291 as an equivalent but cross-platform replacement with the pcn(4) 292 driver still providing performance-optimized support for the subset 293 of AMD Am79C971 PCnet-FAST and greater chips as before. 294 29520060511: 296 The machdep.* sysctls and the adjkerntz utility have been 297 modified a bit. The new adjkerntz utility uses the new 298 sysctl names and sysctlbyname() calls, so it may be impossible 299 to run an old /sbin/adjkerntz utility in single-user mode 300 with a new kernel. Replace the `adjkerntz -i' step before 301 `make installworld' with: 302 303 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 304 305 and proceed as usual with the rest of the installworld-stage 306 steps. Otherwise, you risk installing binaries with their 307 timestamp set several hours in the future, especially if 308 you are running with local time set to GMT+X hours. 309 31020060412: 311 The ip6fw utility has been removed. The behavior provided by 312 ip6fw has been in ipfw2 for a good while and the rc.d scripts 313 have been updated to deal with it. There are some rules that 314 might not migrate cleanly. Use rc.firewall6 as a template to 315 rewrite rules. 316 31720060428: 318 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 319 attachments have been removed. Make sure to configure scc(4) 320 on sparc64. Note also that by default puc(4) will use uart(4) 321 and not sio(4) for serial ports because interrupt handling has 322 been optimized for multi-port serial cards and only uart(4) 323 implements the interface to support it. 324 32520060330: 326 The scc(4) driver replaces puc(4) for Serial Communications 327 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 328 Z8530. On sparc64, it is advised to add scc(4) to the kernel 329 configuration to make sure that the serial ports remain 330 functional. 331 33220060317: 333 Most world/kernel related NO_* build options changed names. 334 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 335 after FreeBSD ports) and should be set in /etc/src.conf 336 (the src.conf(5) manpage is provided). Full backwards 337 compatibility is maintained for the time being though it's 338 highly recommended to start moving old options out of the 339 system-wide /etc/make.conf file into the new /etc/src.conf 340 while also properly renaming them. More conversions will 341 likely follow. Posting to current@: 342 343 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 344 34520060305: 346 The NETSMBCRYPTO kernel option has been retired because its 347 functionality is always included in NETSMB and smbfs.ko now. 348 34920060303: 350 The TDFX_LINUX kernel option was retired and replaced by the 351 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 352 kernel module. Loading it alone should suffice to get 3dfx support 353 for Linux apps because it will pull in 3dfx.ko and linux.ko through 354 its dependencies. 355 35620060204: 357 The 'audit' group was added to support the new auditing functionality 358 in the base system. Be sure to follow the directions for updating, 359 including the requirement to run mergemaster -p. 360 36120060201: 362 The kernel ABI to file system modules was changed on i386. 363 Please make sure that your kernel and modules are in sync. 364 36520060118: 366 This actually occured some time ago, but installing the kernel 367 now also installs a bunch of symbol files for the kernel modules. 368 This increases the size of /boot/kernel to about 67Mbytes. You 369 will need twice this if you will eventually back this up to kernel.old 370 on your next install. 371 If you have a shortage of room in your root partition, you should add 372 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 373 to your /etc/make.conf. 374 37520060113: 376 libc's malloc implementation has been replaced. This change has the 377 potential to uncover application bugs that previously went unnoticed. 378 See the malloc(3) manual page for more details. 379 38020060112: 381 The generic netgraph(4) cookie has been changed. If you upgrade 382 kernel passing this point, you also need to upgrade userland 383 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 384 38520060106: 386 si(4)'s device files now contain the unit number. 387 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 388 38920060106: 390 The kernel ABI was mostly destroyed due to a change in the size 391 of struct lock_object which is nested in other structures such 392 as mutexes which are nested in all sorts of other structures. 393 Make sure your kernel and modules are in sync. 394 39520051231: 396 The page coloring algorithm in the VM subsystem was converted 397 from tuning with kernel options to autotuning. Please remove 398 any PQ_* option except PQ_NOOPT from your kernel config. 399 40020051211: 401 The net80211-related tools in the tools/tools/ath directory 402 have been moved to tools/tools/net80211 and renamed with a 403 "wlan" prefix. Scripts that use them should be adjusted 404 accordingly. 405 40620051202: 407 Scripts in the local_startup directories (as defined in 408 /etc/defaults/rc.conf) that have the new rc.d semantics will 409 now be run as part of the base system rcorder. If there are 410 errors or problems with one of these local scripts, it could 411 cause boot problems. If you encounter such problems, boot in 412 single user mode, remove that script from the */rc.d directory. 413 Please report the problem to the port's maintainer, and the 414 freebsd-ports@freebsd.org mailing list. 415 41620051129: 417 The nodev mount option was deprecated in RELENG_6 (where it 418 was a no-op), and is now unsupported. If you have nodev or dev listed 419 in /etc/fstab, remove it, otherwise it will result in a mount error. 420 42120051129: 422 ABI between ipfw(4) and ipfw(8) has been changed. You need 423 to rebuild ipfw(8) when rebuilding kernel. 424 42520051108: 426 rp(4)'s device files now contain the unit number. 427 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 428 42920051029: 430 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 431 Its /etc/rc.conf.d configuration file has been `ppp' from 432 the beginning, and hence there is no need to touch it. 433 43420051014: 435 Now most modules get their build-time options from the kernel 436 configuration file. A few modules still have fixed options 437 due to their non-conformant implementation, but they will be 438 corrected eventually. You may need to review the options of 439 the modules in use, explicitly specify the non-default options 440 in the kernel configuration file, and rebuild the kernel and 441 modules afterwards. 442 44320051001: 444 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 445 to turn polling(4) on your interfaces. 446 44720050927: 448 The old bridge(4) implementation was retired. The new 449 if_bridge(4) serves as a full functional replacement. 450 45120050722: 452 The ai_addrlen of a struct addrinfo was changed to a socklen_t 453 to conform to POSIX-2001. This change broke an ABI 454 compatibility on 64 bit architecture. You have to recompile 455 userland programs that use getaddrinfo(3) on 64 bit 456 architecture. 457 45820050711: 459 RELENG_6 branched here. 460 46120050629: 462 The pccard_ifconfig rc.conf variable has been removed and a new 463 variable, ifconfig_DEFAULT has been introduced. Unlike 464 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 465 do not have ifconfig_ifn entries rather than just those in 466 removable_interfaces. 467 46820050616: 469 Some previous versions of PAM have permitted the use of 470 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 471 to third party PAM modules in /usr/local/lib. A change has been 472 made to require the use of absolute paths in order to avoid 473 ambiguity and dependence on library path configuration, which may 474 affect existing configurations. 475 47620050610: 477 Major changes to network interface API. All drivers must be 478 recompiled. Drivers not in the base system will need to be 479 updated to the new APIs. 480 48120050609: 482 Changes were made to kinfo_proc in sys/user.h. Please recompile 483 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 484 will not behave correctly. 485 486 The API and ABI for hwpmc(4) have changed with the addition 487 of sampling support. Please recompile lib/libpmc(3) and 488 usr.sbin/{pmcstat,pmccontrol}. 489 49020050606: 491 The OpenBSD dhclient was imported in place of the ISC dhclient 492 and the network interface configuration scripts were updated 493 accordingly. If you use DHCP to configure your interfaces, you 494 must now run devd. Also, DNS updating was lost so you will need 495 to find a workaround if you use this feature. 496 497 The '_dhcp' user was added to support the OpenBSD dhclient. Be 498 sure to run mergemaster -p (like you are supposed to do every time 499 anyway). 500 50120050605: 502 if_bridge was added to the tree. This has changed struct ifnet. 503 Please recompile userland and all network related modules. 504 50520050603: 506 The n_net of a struct netent was changed to an uint32_t, and 507 1st argument of getnetbyaddr() was changed to an uint32_t, to 508 conform to POSIX-2001. These changes broke an ABI 509 compatibility on 64 bit architecture. With these changes, 510 shlib major of libpcap was bumped. You have to recompile 511 userland programs that use getnetbyaddr(3), getnetbyname(3), 512 getnetent(3) and/or libpcap on 64 bit architecture. 513 51420050528: 515 Kernel parsing of extra options on '#!' first lines of shell 516 scripts has changed. Lines with multiple options likely will 517 fail after this date. For full details, please see 518 http://people.freebsd.org/~gad/Updating-20050528.txt 519 52020050503: 521 The packet filter (pf) code has been updated to OpenBSD 3.7 522 Please note the changed anchor syntax and the fact that 523 authpf(8) now needs a mounted fdescfs(5) to function. 524 52520050415: 526 The NO_MIXED_MODE kernel option has been removed from the i386 527 amd64 platforms as its use has been superceded by the new local 528 APIC timer code. Any kernel config files containing this option 529 should be updated. 530 53120050227: 532 The on-disk format of LC_CTYPE files was changed to be machine 533 independent. Please make sure NOT to use NO_CLEAN buildworld 534 when crossing this point. Crossing this point also requires 535 recompile or reinstall of all locale depended packages. 536 53720050225: 538 The ifi_epoch member of struct if_data has been changed to 539 contain the uptime at which the interface was created or the 540 statistics zeroed rather then the wall clock time because 541 wallclock time may go backwards. This should have no impact 542 unless an snmp implementation is using this value (I know of 543 none at this point.) 544 54520050224: 546 The acpi_perf and acpi_throttle drivers are now part of the 547 acpi(4) main module. They are no longer built separately. 548 54920050223: 550 The layout of struct image_params has changed. You have to 551 recompile all compatibility modules (linux, svr4, etc) for use 552 with the new kernel. 553 55420050223: 555 The p4tcc driver has been merged into cpufreq(4). This makes 556 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 557 compile in "device cpufreq" to restore this functionality. 558 55920050220: 560 The responsibility of recomputing the file system summary of 561 a SoftUpdates-enabled dirty volume has been transferred to the 562 background fsck. A rebuild of fsck(8) utility is recommended 563 if you have updated the kernel. 564 565 To get the old behavior (recompute file system summary at mount 566 time), you can set vfs.ffs.compute_summary_at_mount=1 before 567 mounting the new volume. 568 56920050206: 570 The cpufreq import is complete. As part of this, the sysctls for 571 acpi(4) throttling have been removed. The power_profile script 572 has been updated, so you can use performance/economy_cpu_freq in 573 rc.conf(5) to set AC on/offline cpu frequencies. 574 57520050206: 576 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 577 requires recompiling libnetgraph and userland netgraph utilities. 578 57920050114: 580 Support for abbreviated forms of a number of ipfw options is 581 now deprecated. Warnings are printed to stderr indicating the 582 correct full form when a match occurs. Some abbreviations may 583 be supported at a later date based on user feedback. To be 584 considered for support, abbreviations must be in use prior to 585 this commit and unlikely to be confused with current key words. 586 58720041221: 588 By a popular demand, a lot of NOFOO options were renamed 589 to NO_FOO (see bsd.compat.mk for a full list). The old 590 spellings are still supported, but will cause annoying 591 warnings on stderr. Make sure you upgrade properly (see 592 the COMMON ITEMS: section later in this file). 593 59420041219: 595 Auto-loading of ancillary wlan modules such as wlan_wep has 596 been temporarily disabled; you need to statically configure 597 the modules you need into your kernel or explicitly load them 598 prior to use. Specifically, if you intend to use WEP encryption 599 with an 802.11 device load/configure wlan_wep; if you want to 600 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 601 and wlan_xauth as required. 602 60320041213: 604 The behaviour of ppp(8) has changed slightly. If lqr is enabled 605 (``enable lqr''), older versions would revert to LCP ECHO mode on 606 negotiation failure. Now, ``enable echo'' is required for this 607 behaviour. The ppp version number has been bumped to 3.4.2 to 608 reflect the change. 609 61020041201: 611 The wlan support has been updated to split the crypto support 612 into separate modules. For static WEP you must configure the 613 wlan_wep module in your system or build and install the module 614 in place where it can be loaded (the kernel will auto-load 615 the module when a wep key is configured). 616 61720041201: 618 The ath driver has been updated to split the tx rate control 619 algorithm into a separate module. You need to include either 620 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 621 62220041116: 623 Support for systems with an 80386 CPU has been removed. Please 624 use FreeBSD 5.x or earlier on systems with an 80386. 625 62620041110: 627 We have had a hack which would mount the root filesystem 628 R/W if the device were named 'md*'. As part of the vnode 629 work I'm doing I have had to remove this hack. People 630 building systems which use preloaded MD root filesystems 631 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 632 their /etc/rc scripts. 633 63420041104: 635 FreeBSD 5.3 shipped here. 636 63720041102: 638 The size of struct tcpcb has changed again due to the removal 639 of RFC1644 T/TCP. You have to recompile userland programs that 640 read kmem for tcp sockets directly (netstat, sockstat, etc.) 641 64220041022: 643 The size of struct tcpcb has changed. You have to recompile 644 userland programs that read kmem for tcp sockets directly 645 (netstat, sockstat, etc.) 646 64720041016: 648 RELENG_5 branched here. For older entries, please see updating 649 in the RELENG_5 branch. 650 651COMMON ITEMS: 652 653 General Notes 654 ------------- 655 Avoid using make -j when upgrading. From time to time in the 656 past there have been problems using -j with buildworld and/or 657 installworld. This is especially true when upgrading between 658 "distant" versions (eg one that cross a major release boundary 659 or several minor releases, or when several months have passed 660 on the -current branch). 661 662 Sometimes, obscure build problems are the result of environment 663 poisoning. This can happen because the make utility reads its 664 environment when searching for values for global variables. 665 To run your build attempts in an "environmental clean room", 666 prefix all make commands with 'env -i '. See the env(1) manual 667 page for more details. 668 669 When upgrading from one major version to another it is generally 670 best to upgrade to the latest code in the currently installed branch 671 first, then do an upgrade to the new branch. This is the best-tested 672 upgrade path, and has the highest probability of being successful. 673 Please try this approach before reporting problems with a major 674 version upgrade. 675 676 To build a kernel 677 ----------------- 678 If you are updating from a prior version of FreeBSD (even one just 679 a few days old), you should follow this procedure. It is the most 680 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 681 682 make kernel-toolchain 683 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 684 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 685 686 To test a kernel once 687 --------------------- 688 If you just want to boot a kernel once (because you are not sure 689 if it works, or if you want to boot a known bad kernel to provide 690 debugging information) run 691 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 692 nextboot -k testkernel 693 694 To just build a kernel when you know that it won't mess you up 695 -------------------------------------------------------------- 696 This assumes you are already running a 5.X system. Replace 697 ${arch} with the architecture of your machine (e.g. "i386", 698 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 699 700 cd src/sys/${arch}/conf 701 config KERNEL_NAME_HERE 702 cd ../compile/KERNEL_NAME_HERE 703 make depend 704 make 705 make install 706 707 If this fails, go to the "To build a kernel" section. 708 709 To rebuild everything and install it on the current system. 710 ----------------------------------------------------------- 711 # Note: sometimes if you are running current you gotta do more than 712 # is listed here if you are upgrading from a really old current. 713 714 <make sure you have good level 0 dumps> 715 make buildworld 716 make kernel KERNCONF=YOUR_KERNEL_HERE 717 [1] 718 <reboot in single user> [3] 719 mergemaster -p [5] 720 make installworld 721 make delete-old 722 mergemaster [4] 723 <reboot> 724 725 726 To cross-install current onto a separate partition 727 -------------------------------------------------- 728 # In this approach we use a separate partition to hold 729 # current's root, 'usr', and 'var' directories. A partition 730 # holding "/", "/usr" and "/var" should be about 2GB in 731 # size. 732 733 <make sure you have good level 0 dumps> 734 <boot into -stable> 735 make buildworld 736 make buildkernel KERNCONF=YOUR_KERNEL_HERE 737 <maybe newfs current's root partition> 738 <mount current's root partition on directory ${CURRENT_ROOT}> 739 make installworld DESTDIR=${CURRENT_ROOT} 740 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 741 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 742 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 743 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 744 <reboot into current> 745 <do a "native" rebuild/install as described in the previous section> 746 <maybe install compatibility libraries from src/lib/compat> 747 <reboot> 748 749 750 To upgrade in-place from 5.x-stable to current 751 ---------------------------------------------- 752 <make sure you have good level 0 dumps> 753 make buildworld [9] 754 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 755 [1] 756 <reboot in single user> [3] 757 mergemaster -p [5] 758 make installworld 759 make delete-old 760 mergemaster -i [4] 761 <reboot> 762 763 Make sure that you've read the UPDATING file to understand the 764 tweaks to various things you need. At this point in the life 765 cycle of current, things change often and you are on your own 766 to cope. The defaults can also change, so please read ALL of 767 the UPDATING entries. 768 769 Also, if you are tracking -current, you must be subscribed to 770 freebsd-current@freebsd.org. Make sure that before you update 771 your sources that you have read and understood all the recent 772 messages there. If in doubt, please track -stable which has 773 much fewer pitfalls. 774 775 [1] If you have third party modules, such as vmware, you 776 should disable them at this point so they don't crash your 777 system on reboot. 778 779 [3] From the bootblocks, boot -s, and then do 780 fsck -p 781 mount -u / 782 mount -a 783 cd src 784 adjkerntz -i # if CMOS is wall time 785 Also, when doing a major release upgrade, it is required that 786 you boot into single user mode to do the installworld. 787 788 [4] Note: This step is non-optional. Failure to do this step 789 can result in a significant reduction in the functionality of the 790 system. Attempting to do it by hand is not recommended and those 791 that pursue this avenue should read this file carefully, as well 792 as the archives of freebsd-current and freebsd-hackers mailing lists 793 for potential gotchas. 794 795 [5] Usually this step is a noop. However, from time to time 796 you may need to do this if you get unknown user in the following 797 step. It never hurts to do it all the time. You may need to 798 install a new mergemaster (cd src/usr.sbin/mergemaster && make 799 install) after the buildworld before this step if you last updated 800 from current before 20020224 or from -stable before 20020408. 801 802 [8] In order to have a kernel that can run the 4.x binaries 803 needed to do an installworld, you must include the COMPAT_FREEBSD4 804 option in your kernel. Failure to do so may leave you with a system 805 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 806 is required to run the 5.x binaries on more recent kernels. 807 808 Make sure that you merge any new devices from GENERIC since the 809 last time you updated your kernel config file. 810 811 [9] When checking out sources, you must include the -P flag to have 812 cvs prune empty directories. 813 814 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 815 "?=" instead of the "=" assignment operator, so that buildworld can 816 override the CPUTYPE if it needs to. 817 818 MAKEOBJDIRPREFIX must be defined in an environment variable, and 819 not on the command line, or in /etc/make.conf. buildworld will 820 warn if it is improperly defined. 821FORMAT: 822 823This file contains a list, in reverse chronological order, of major 824breakages in tracking -current. Not all things will be listed here, 825and it only starts on October 16, 2004. Updating files can found in 826previous releases if your system is older than this. 827 828Copyright information: 829 830Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 831 832Redistribution, publication, translation and use, with or without 833modification, in full or in part, in any form or format of this 834document are permitted without further permission from the author. 835 836THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 837IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 838WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 839DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 840INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 841(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 842SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 843HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 844STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 845IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 846POSSIBILITY OF SUCH DAMAGE. 847 848If you find this document useful, and you want to, you may buy the 849author a beer. 850 851Contact Warner Losh if you have any questions about your use of 852this document. 853 854$FreeBSD: head/UPDATING 170613 2007-06-12 16:24:56Z bms $ 855