UPDATING revision 171133
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 2420070701: 25 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 26 only IPsec supported by FreeBSD. The new IPsec stack 27 supports both IPv4 and IPv6. The kernel option will change 28 after the code changes have settled in. For now the kernel 29 option IPSEC is deprecated and FAST_IPSEC is the only option, that 30 will change after some settling time. 31 3220070701: 33 The wicontrol(8) utility has been removed from the base system. wi(4) 34 cards should be configured using ifconfig(8), see the man page for more 35 information. 36 3720070612: 38 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 39 database if it is missing or older than the aliases file. If 40 desired, set the new rc.conf option sendmail_rebuild_aliases 41 to "YES" to restore that functionality. 42 4320070612: 44 The IPv4 multicast socket code has been considerably modified, and 45 moved to the file sys/netinet/in_mcast.c. Initial support for the 46 RFC 3678 Source-Specific Multicast Socket API has been added to 47 the IPv4 network stack. 48 49 Strict multicast and broadcast reception is now the default for 50 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 51 has now been removed. 52 53 The RFC 1724 hack for interface selection has been removed; the use 54 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 55 been added to replace it. Consumers such as routed will soon be 56 updated to reflect this. 57 58 These changes affect users who are running routed(8) or rdisc(8) 59 from the FreeBSD base system on point-to-point or unnumbered 60 interfaces. 61 6220070610: 63 The net80211 layer has changed significantly and all wireless 64 drivers that depend on it need to be recompiled. Further these 65 changes require that any program that interacts with the wireless 66 support in the kernel be recompiled; this includes: ifconfig, 67 wpa_supplicant, hostapd, and wlanstats. Users must also, for 68 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 69 if they use modules for wireless support. These modules implement 70 scanning support for station and ap modes, respectively. Failure 71 to load the appropriate module before marking a wireless interface 72 up will result in a message to the console and the device not 73 operating properly. 74 7520070610: 76 The pam_nologin(8) module ceases to provide an authentication 77 function and starts providing an account management function. 78 Consequent changes to /etc/pam.d should be brought in using 79 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 80 need manual editing as follows. Locate this line (or similar): 81 82 auth required pam_nologin.so no_warn 83 84 and change it according to this example: 85 86 account required pam_nologin.so no_warn 87 88 That is, the first word needs to be changed from "auth" to 89 "account". The new line can be moved to the account section 90 within the file for clarity. Not updating pam.conf(5) files 91 will result in nologin(5) ignored by the respective services. 92 9320070529: 94 The ether_ioctl() function has been synchronized with ioctl(2) 95 and ifnet.if_ioctl. Due to that, the size of one of its arguments 96 has changed on 64-bit architectures. All kernel modules using 97 ether_ioctl() need to be rebuilt on such architectures. 98 9920070516: 100 Improved INCLUDE_CONFIG_FILE support has been introduced to the 101 config(8) utility. In order to take advantage of this new 102 functionality, you are expected to recompile and install 103 src/usr.sbin/config. If you don't rebuild config(8), and your 104 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 105 build will be broken because of a missing "kernconfstring" 106 symbol. 107 10820070513: 109 Symbol versioning is enabled by default. To disable it, use 110 option WITHOUT_SYMVER. It is not advisable to attempt to 111 disable symbol versioning once it is enabled; your installworld 112 will break because a symbol version-less libc will get installed 113 before the install tools. As a result, the old install tools, 114 which previously had symbol dependencies to FBSD_1.0, will fail 115 because the freshly installed libc will not have them. 116 117 The default threading library has been changed to libthr. If 118 you wish to have libpthread as your default, use option 119 DEFAULT_THREAD_LIB=libpthread for the buildworld. 120 12120070423: 122 The ABI breakage in sendmail(8)'s libmilter has been repaired 123 so it is no longer necessary to recompile mail filters (aka, 124 milters). If you recompiled mail filters after the 20070408 125 note, it is not necessary to recompile them again. 126 12720070417: 128 The new trunk(4) driver has been renamed to lagg(4) as it better 129 reflects its purpose. ifconfig will need to be recompiled. 130 13120070408: 132 sendmail(8) has been updated to version 8.14.1. Mail filters 133 (aka, milters) compiled against the libmilter included in the 134 base operating system should be recompiled. 135 13620070302: 137 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 138 In order to use them one must agree to the respective LICENSE in 139 share/doc/legal and define legal.intel_<name>.license_ack=1 via 140 loader.conf(5) or kenv(1). Make sure to deinstall the now 141 deprecated modules from the respective firmware ports. 142 14320070228: 144 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 145 were removed from FreeBSD's libc. These originally came from INRIA 146 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 147 deprecated in previous releases. 148 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 149 replace it as a more portable (and re-entrant) API. 150 15120070224: 152 To support interrupt filtering a modification to the newbus API 153 has occurred, ABI was broken and __FreeBSD_version was bumped 154 to 700031. Please make sure that your kernel and modules are in 155 sync. For more info: 156 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 157 15820070224: 159 The IPv6 multicast forwarding code may now be loaded into GENERIC 160 kernels by loading the ip_mroute.ko module. This is built into the 161 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 162 set; see src.conf(5) for more information. 163 16420070214: 165 The output of netstat -r has changed. Without -n, we now only 166 print a "network name" without the prefix length if the network 167 address and mask exactly match a Class A/B/C network, and an entry 168 exists in the nsswitch "networks" map. 169 With -n, we print the full unabbreviated CIDR network prefix in 170 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 171 This change is in preparation for changes such as equal-cost 172 multipath, and to more generally assist operational deployment 173 of FreeBSD as a modern IPv4 router. 174 17520070210: 176 PIM has been turned on by default in the IPv4 multicast 177 routing code. The kernel option 'PIM' has now been removed. 178 PIM is now built by default if option 'MROUTING' is specified. 179 It may now be loaded into GENERIC kernels by loading the 180 ip_mroute.ko module. 181 18220070207: 183 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 184 has been removed. Its functionality may be achieved by explicitly 185 configuring gif(4) interfaces and using the 'phyint' keyword in 186 mrouted.conf. 187 XORP does not support source-routed IPv4 multicast tunnels nor the 188 integrated IPIP tunneling, therefore it is not affected by this 189 change. The __FreeBSD_version macro has been bumped to 700030. 190 19120061221: 192 Support for PCI Message Signalled Interrupts has been 193 re-enabled in the bge driver, only for those chips which are 194 believed to support it properly. If there are any problems, 195 MSI can be disabled completely by setting the 196 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 197 in the loader. 198 19920061214: 200 Support for PCI Message Signalled Interrupts has been 201 disabled again in the bge driver. Many revisions of the 202 hardware fail to support it properly. Support can be 203 re-enabled by removing the #define of BGE_DISABLE_MSI in 204 "src/sys/dev/bge/if_bge.c". 205 20620061214: 207 Support for PCI Message Signalled Interrupts has been added 208 to the bge driver. If there are any problems, MSI can be 209 disabled completely by setting the 'hw.pci.enable_msi' and 210 'hw.pci.enable_msix' tunables to 0 in the loader. 211 21220061205: 213 The removal of several facets of the experimental Threading 214 system from the kernel means that the proc and thread structures 215 have changed quite a bit. I suggest all kernel modules that might 216 reference these structures be recompiled.. Especially the 217 linux module. 218 21920061126: 220 Sound infrastructure has been updated with various fixes and 221 improvements. Most of the changes are pretty much transparent, 222 with exceptions of followings: 223 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 224 moved to their own dev sysctl nodes, for example: 225 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 226 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 227 own chardev in the form of "dsp%d.<function>%d", where <function> 228 is p = playback, r = record and v = virtual, respectively. Users 229 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 230 This does not affect those who are using "/dev/dsp". 231 23220061122: 233 The following binaries have been disconnected from the build: 234 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 235 and mount_std. The functionality of these programs has been 236 moved into the mount program. For example, to mount a devfs 237 filesystem, instead of using mount_devfs, use: "mount -t devfs". 238 This does not affect entries in /etc/fstab, since entries in 239 /etc/fstab are always processed with "mount -t fstype". 240 24120061113: 242 Support for PCI Message Signalled Interrupts on i386 and amd64 243 has been added to the kernel and various drivers will soon be 244 updated to use MSI when it is available. If there are any problems, 245 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 246 and 'hw.pci.enable_msix' tunables to 0 in the loader. 247 24820061110: 249 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 250 The lockmgr object layout has been changed as a result of having 251 a lock_object embedded in it. As a consequence all file system 252 kernel modules must be re-compiled. The mutex profiling man page 253 has not yet been updated to reflect this change. 254 25520061026: 256 KSE in the kernel has now been made optional and turned on by 257 default. Use 'nooption KSE' in your kernel config to turn it 258 off. All kernel modules *must* be recompiled after this change. 259 There-after, modules from a KSE kernel should be compatible with 260 modules from a NOKSE kernel due to the temporary padding fields 261 added to 'struct proc'. 262 26320060929: 264 mrouted and its utilities have been removed from the base system. 265 26620060927: 267 Some ioctl(2) command codes have changed. Full backward ABI 268 compatibility is provided if the "options COMPAT_FREEBSD6" is 269 present in the kernel configuration file. Make sure to add 270 this option to your kernel config file, or recompile X.Org 271 and the rest of ports; otherwise they may refuse to work. 272 27320060924: 274 tcpslice has been removed from the base system. 275 27620060913: 277 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 278 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 279 systat needs to be rebuilt. 280 28120060903: 282 libpcap updated to v0.9.4 and tcpdump to v3.9.4 283 28420060816: 285 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 286 for IPFIREWALL_FORWARD is now as it was before when it was first 287 committed and for years after. The behaviour is now ON. 288 28920060725: 290 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 291 Now it can decrypt files created from different architectures. 292 Unfortunately, it is no longer able to decrypt a cipher text 293 generated with an older version on 64 bit architectures. 294 If you have such a file, you need old utility to decrypt it. 295 29620060709: 297 The interface version of the i4b kernel part has changed. So 298 after updating the kernel sources and compiling a new kernel, 299 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 300 be rebuilt, and vice versa. 301 30220060627: 303 The XBOX kernel now defaults to the nfe(4) driver instead of 304 the nve(4) driver. Please update your configuration 305 accordingly. 306 30720060514: 308 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 309 PCnet family of NICs has been removed. The new le(4) driver serves 310 as an equivalent but cross-platform replacement with the pcn(4) 311 driver still providing performance-optimized support for the subset 312 of AMD Am79C971 PCnet-FAST and greater chips as before. 313 31420060511: 315 The machdep.* sysctls and the adjkerntz utility have been 316 modified a bit. The new adjkerntz utility uses the new 317 sysctl names and sysctlbyname() calls, so it may be impossible 318 to run an old /sbin/adjkerntz utility in single-user mode 319 with a new kernel. Replace the `adjkerntz -i' step before 320 `make installworld' with: 321 322 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 323 324 and proceed as usual with the rest of the installworld-stage 325 steps. Otherwise, you risk installing binaries with their 326 timestamp set several hours in the future, especially if 327 you are running with local time set to GMT+X hours. 328 32920060412: 330 The ip6fw utility has been removed. The behavior provided by 331 ip6fw has been in ipfw2 for a good while and the rc.d scripts 332 have been updated to deal with it. There are some rules that 333 might not migrate cleanly. Use rc.firewall6 as a template to 334 rewrite rules. 335 33620060428: 337 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 338 attachments have been removed. Make sure to configure scc(4) 339 on sparc64. Note also that by default puc(4) will use uart(4) 340 and not sio(4) for serial ports because interrupt handling has 341 been optimized for multi-port serial cards and only uart(4) 342 implements the interface to support it. 343 34420060330: 345 The scc(4) driver replaces puc(4) for Serial Communications 346 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 347 Z8530. On sparc64, it is advised to add scc(4) to the kernel 348 configuration to make sure that the serial ports remain 349 functional. 350 35120060317: 352 Most world/kernel related NO_* build options changed names. 353 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 354 after FreeBSD ports) and should be set in /etc/src.conf 355 (the src.conf(5) manpage is provided). Full backwards 356 compatibility is maintained for the time being though it's 357 highly recommended to start moving old options out of the 358 system-wide /etc/make.conf file into the new /etc/src.conf 359 while also properly renaming them. More conversions will 360 likely follow. Posting to current@: 361 362 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 363 36420060305: 365 The NETSMBCRYPTO kernel option has been retired because its 366 functionality is always included in NETSMB and smbfs.ko now. 367 36820060303: 369 The TDFX_LINUX kernel option was retired and replaced by the 370 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 371 kernel module. Loading it alone should suffice to get 3dfx support 372 for Linux apps because it will pull in 3dfx.ko and linux.ko through 373 its dependencies. 374 37520060204: 376 The 'audit' group was added to support the new auditing functionality 377 in the base system. Be sure to follow the directions for updating, 378 including the requirement to run mergemaster -p. 379 38020060201: 381 The kernel ABI to file system modules was changed on i386. 382 Please make sure that your kernel and modules are in sync. 383 38420060118: 385 This actually occured some time ago, but installing the kernel 386 now also installs a bunch of symbol files for the kernel modules. 387 This increases the size of /boot/kernel to about 67Mbytes. You 388 will need twice this if you will eventually back this up to kernel.old 389 on your next install. 390 If you have a shortage of room in your root partition, you should add 391 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 392 to your /etc/make.conf. 393 39420060113: 395 libc's malloc implementation has been replaced. This change has the 396 potential to uncover application bugs that previously went unnoticed. 397 See the malloc(3) manual page for more details. 398 39920060112: 400 The generic netgraph(4) cookie has been changed. If you upgrade 401 kernel passing this point, you also need to upgrade userland 402 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 403 40420060106: 405 si(4)'s device files now contain the unit number. 406 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 407 40820060106: 409 The kernel ABI was mostly destroyed due to a change in the size 410 of struct lock_object which is nested in other structures such 411 as mutexes which are nested in all sorts of other structures. 412 Make sure your kernel and modules are in sync. 413 41420051231: 415 The page coloring algorithm in the VM subsystem was converted 416 from tuning with kernel options to autotuning. Please remove 417 any PQ_* option except PQ_NOOPT from your kernel config. 418 41920051211: 420 The net80211-related tools in the tools/tools/ath directory 421 have been moved to tools/tools/net80211 and renamed with a 422 "wlan" prefix. Scripts that use them should be adjusted 423 accordingly. 424 42520051202: 426 Scripts in the local_startup directories (as defined in 427 /etc/defaults/rc.conf) that have the new rc.d semantics will 428 now be run as part of the base system rcorder. If there are 429 errors or problems with one of these local scripts, it could 430 cause boot problems. If you encounter such problems, boot in 431 single user mode, remove that script from the */rc.d directory. 432 Please report the problem to the port's maintainer, and the 433 freebsd-ports@freebsd.org mailing list. 434 43520051129: 436 The nodev mount option was deprecated in RELENG_6 (where it 437 was a no-op), and is now unsupported. If you have nodev or dev listed 438 in /etc/fstab, remove it, otherwise it will result in a mount error. 439 44020051129: 441 ABI between ipfw(4) and ipfw(8) has been changed. You need 442 to rebuild ipfw(8) when rebuilding kernel. 443 44420051108: 445 rp(4)'s device files now contain the unit number. 446 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 447 44820051029: 449 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 450 Its /etc/rc.conf.d configuration file has been `ppp' from 451 the beginning, and hence there is no need to touch it. 452 45320051014: 454 Now most modules get their build-time options from the kernel 455 configuration file. A few modules still have fixed options 456 due to their non-conformant implementation, but they will be 457 corrected eventually. You may need to review the options of 458 the modules in use, explicitly specify the non-default options 459 in the kernel configuration file, and rebuild the kernel and 460 modules afterwards. 461 46220051001: 463 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 464 to turn polling(4) on your interfaces. 465 46620050927: 467 The old bridge(4) implementation was retired. The new 468 if_bridge(4) serves as a full functional replacement. 469 47020050722: 471 The ai_addrlen of a struct addrinfo was changed to a socklen_t 472 to conform to POSIX-2001. This change broke an ABI 473 compatibility on 64 bit architecture. You have to recompile 474 userland programs that use getaddrinfo(3) on 64 bit 475 architecture. 476 47720050711: 478 RELENG_6 branched here. 479 48020050629: 481 The pccard_ifconfig rc.conf variable has been removed and a new 482 variable, ifconfig_DEFAULT has been introduced. Unlike 483 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 484 do not have ifconfig_ifn entries rather than just those in 485 removable_interfaces. 486 48720050616: 488 Some previous versions of PAM have permitted the use of 489 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 490 to third party PAM modules in /usr/local/lib. A change has been 491 made to require the use of absolute paths in order to avoid 492 ambiguity and dependence on library path configuration, which may 493 affect existing configurations. 494 49520050610: 496 Major changes to network interface API. All drivers must be 497 recompiled. Drivers not in the base system will need to be 498 updated to the new APIs. 499 50020050609: 501 Changes were made to kinfo_proc in sys/user.h. Please recompile 502 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 503 will not behave correctly. 504 505 The API and ABI for hwpmc(4) have changed with the addition 506 of sampling support. Please recompile lib/libpmc(3) and 507 usr.sbin/{pmcstat,pmccontrol}. 508 50920050606: 510 The OpenBSD dhclient was imported in place of the ISC dhclient 511 and the network interface configuration scripts were updated 512 accordingly. If you use DHCP to configure your interfaces, you 513 must now run devd. Also, DNS updating was lost so you will need 514 to find a workaround if you use this feature. 515 516 The '_dhcp' user was added to support the OpenBSD dhclient. Be 517 sure to run mergemaster -p (like you are supposed to do every time 518 anyway). 519 52020050605: 521 if_bridge was added to the tree. This has changed struct ifnet. 522 Please recompile userland and all network related modules. 523 52420050603: 525 The n_net of a struct netent was changed to an uint32_t, and 526 1st argument of getnetbyaddr() was changed to an uint32_t, to 527 conform to POSIX-2001. These changes broke an ABI 528 compatibility on 64 bit architecture. With these changes, 529 shlib major of libpcap was bumped. You have to recompile 530 userland programs that use getnetbyaddr(3), getnetbyname(3), 531 getnetent(3) and/or libpcap on 64 bit architecture. 532 53320050528: 534 Kernel parsing of extra options on '#!' first lines of shell 535 scripts has changed. Lines with multiple options likely will 536 fail after this date. For full details, please see 537 http://people.freebsd.org/~gad/Updating-20050528.txt 538 53920050503: 540 The packet filter (pf) code has been updated to OpenBSD 3.7 541 Please note the changed anchor syntax and the fact that 542 authpf(8) now needs a mounted fdescfs(5) to function. 543 54420050415: 545 The NO_MIXED_MODE kernel option has been removed from the i386 546 amd64 platforms as its use has been superceded by the new local 547 APIC timer code. Any kernel config files containing this option 548 should be updated. 549 55020050227: 551 The on-disk format of LC_CTYPE files was changed to be machine 552 independent. Please make sure NOT to use NO_CLEAN buildworld 553 when crossing this point. Crossing this point also requires 554 recompile or reinstall of all locale depended packages. 555 55620050225: 557 The ifi_epoch member of struct if_data has been changed to 558 contain the uptime at which the interface was created or the 559 statistics zeroed rather then the wall clock time because 560 wallclock time may go backwards. This should have no impact 561 unless an snmp implementation is using this value (I know of 562 none at this point.) 563 56420050224: 565 The acpi_perf and acpi_throttle drivers are now part of the 566 acpi(4) main module. They are no longer built separately. 567 56820050223: 569 The layout of struct image_params has changed. You have to 570 recompile all compatibility modules (linux, svr4, etc) for use 571 with the new kernel. 572 57320050223: 574 The p4tcc driver has been merged into cpufreq(4). This makes 575 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 576 compile in "device cpufreq" to restore this functionality. 577 57820050220: 579 The responsibility of recomputing the file system summary of 580 a SoftUpdates-enabled dirty volume has been transferred to the 581 background fsck. A rebuild of fsck(8) utility is recommended 582 if you have updated the kernel. 583 584 To get the old behavior (recompute file system summary at mount 585 time), you can set vfs.ffs.compute_summary_at_mount=1 before 586 mounting the new volume. 587 58820050206: 589 The cpufreq import is complete. As part of this, the sysctls for 590 acpi(4) throttling have been removed. The power_profile script 591 has been updated, so you can use performance/economy_cpu_freq in 592 rc.conf(5) to set AC on/offline cpu frequencies. 593 59420050206: 595 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 596 requires recompiling libnetgraph and userland netgraph utilities. 597 59820050114: 599 Support for abbreviated forms of a number of ipfw options is 600 now deprecated. Warnings are printed to stderr indicating the 601 correct full form when a match occurs. Some abbreviations may 602 be supported at a later date based on user feedback. To be 603 considered for support, abbreviations must be in use prior to 604 this commit and unlikely to be confused with current key words. 605 60620041221: 607 By a popular demand, a lot of NOFOO options were renamed 608 to NO_FOO (see bsd.compat.mk for a full list). The old 609 spellings are still supported, but will cause annoying 610 warnings on stderr. Make sure you upgrade properly (see 611 the COMMON ITEMS: section later in this file). 612 61320041219: 614 Auto-loading of ancillary wlan modules such as wlan_wep has 615 been temporarily disabled; you need to statically configure 616 the modules you need into your kernel or explicitly load them 617 prior to use. Specifically, if you intend to use WEP encryption 618 with an 802.11 device load/configure wlan_wep; if you want to 619 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 620 and wlan_xauth as required. 621 62220041213: 623 The behaviour of ppp(8) has changed slightly. If lqr is enabled 624 (``enable lqr''), older versions would revert to LCP ECHO mode on 625 negotiation failure. Now, ``enable echo'' is required for this 626 behaviour. The ppp version number has been bumped to 3.4.2 to 627 reflect the change. 628 62920041201: 630 The wlan support has been updated to split the crypto support 631 into separate modules. For static WEP you must configure the 632 wlan_wep module in your system or build and install the module 633 in place where it can be loaded (the kernel will auto-load 634 the module when a wep key is configured). 635 63620041201: 637 The ath driver has been updated to split the tx rate control 638 algorithm into a separate module. You need to include either 639 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 640 64120041116: 642 Support for systems with an 80386 CPU has been removed. Please 643 use FreeBSD 5.x or earlier on systems with an 80386. 644 64520041110: 646 We have had a hack which would mount the root filesystem 647 R/W if the device were named 'md*'. As part of the vnode 648 work I'm doing I have had to remove this hack. People 649 building systems which use preloaded MD root filesystems 650 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 651 their /etc/rc scripts. 652 65320041104: 654 FreeBSD 5.3 shipped here. 655 65620041102: 657 The size of struct tcpcb has changed again due to the removal 658 of RFC1644 T/TCP. You have to recompile userland programs that 659 read kmem for tcp sockets directly (netstat, sockstat, etc.) 660 66120041022: 662 The size of struct tcpcb has changed. You have to recompile 663 userland programs that read kmem for tcp sockets directly 664 (netstat, sockstat, etc.) 665 66620041016: 667 RELENG_5 branched here. For older entries, please see updating 668 in the RELENG_5 branch. 669 670COMMON ITEMS: 671 672 General Notes 673 ------------- 674 Avoid using make -j when upgrading. From time to time in the 675 past there have been problems using -j with buildworld and/or 676 installworld. This is especially true when upgrading between 677 "distant" versions (eg one that cross a major release boundary 678 or several minor releases, or when several months have passed 679 on the -current branch). 680 681 Sometimes, obscure build problems are the result of environment 682 poisoning. This can happen because the make utility reads its 683 environment when searching for values for global variables. 684 To run your build attempts in an "environmental clean room", 685 prefix all make commands with 'env -i '. See the env(1) manual 686 page for more details. 687 688 When upgrading from one major version to another it is generally 689 best to upgrade to the latest code in the currently installed branch 690 first, then do an upgrade to the new branch. This is the best-tested 691 upgrade path, and has the highest probability of being successful. 692 Please try this approach before reporting problems with a major 693 version upgrade. 694 695 To build a kernel 696 ----------------- 697 If you are updating from a prior version of FreeBSD (even one just 698 a few days old), you should follow this procedure. It is the most 699 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 700 701 make kernel-toolchain 702 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 703 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 704 705 To test a kernel once 706 --------------------- 707 If you just want to boot a kernel once (because you are not sure 708 if it works, or if you want to boot a known bad kernel to provide 709 debugging information) run 710 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 711 nextboot -k testkernel 712 713 To just build a kernel when you know that it won't mess you up 714 -------------------------------------------------------------- 715 This assumes you are already running a 5.X system. Replace 716 ${arch} with the architecture of your machine (e.g. "i386", 717 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 718 719 cd src/sys/${arch}/conf 720 config KERNEL_NAME_HERE 721 cd ../compile/KERNEL_NAME_HERE 722 make depend 723 make 724 make install 725 726 If this fails, go to the "To build a kernel" section. 727 728 To rebuild everything and install it on the current system. 729 ----------------------------------------------------------- 730 # Note: sometimes if you are running current you gotta do more than 731 # is listed here if you are upgrading from a really old current. 732 733 <make sure you have good level 0 dumps> 734 make buildworld 735 make kernel KERNCONF=YOUR_KERNEL_HERE 736 [1] 737 <reboot in single user> [3] 738 mergemaster -p [5] 739 make installworld 740 make delete-old 741 mergemaster [4] 742 <reboot> 743 744 745 To cross-install current onto a separate partition 746 -------------------------------------------------- 747 # In this approach we use a separate partition to hold 748 # current's root, 'usr', and 'var' directories. A partition 749 # holding "/", "/usr" and "/var" should be about 2GB in 750 # size. 751 752 <make sure you have good level 0 dumps> 753 <boot into -stable> 754 make buildworld 755 make buildkernel KERNCONF=YOUR_KERNEL_HERE 756 <maybe newfs current's root partition> 757 <mount current's root partition on directory ${CURRENT_ROOT}> 758 make installworld DESTDIR=${CURRENT_ROOT} 759 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 760 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 761 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 762 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 763 <reboot into current> 764 <do a "native" rebuild/install as described in the previous section> 765 <maybe install compatibility libraries from src/lib/compat> 766 <reboot> 767 768 769 To upgrade in-place from 5.x-stable to current 770 ---------------------------------------------- 771 <make sure you have good level 0 dumps> 772 make buildworld [9] 773 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 774 [1] 775 <reboot in single user> [3] 776 mergemaster -p [5] 777 make installworld 778 make delete-old 779 mergemaster -i [4] 780 <reboot> 781 782 Make sure that you've read the UPDATING file to understand the 783 tweaks to various things you need. At this point in the life 784 cycle of current, things change often and you are on your own 785 to cope. The defaults can also change, so please read ALL of 786 the UPDATING entries. 787 788 Also, if you are tracking -current, you must be subscribed to 789 freebsd-current@freebsd.org. Make sure that before you update 790 your sources that you have read and understood all the recent 791 messages there. If in doubt, please track -stable which has 792 much fewer pitfalls. 793 794 [1] If you have third party modules, such as vmware, you 795 should disable them at this point so they don't crash your 796 system on reboot. 797 798 [3] From the bootblocks, boot -s, and then do 799 fsck -p 800 mount -u / 801 mount -a 802 cd src 803 adjkerntz -i # if CMOS is wall time 804 Also, when doing a major release upgrade, it is required that 805 you boot into single user mode to do the installworld. 806 807 [4] Note: This step is non-optional. Failure to do this step 808 can result in a significant reduction in the functionality of the 809 system. Attempting to do it by hand is not recommended and those 810 that pursue this avenue should read this file carefully, as well 811 as the archives of freebsd-current and freebsd-hackers mailing lists 812 for potential gotchas. 813 814 [5] Usually this step is a noop. However, from time to time 815 you may need to do this if you get unknown user in the following 816 step. It never hurts to do it all the time. You may need to 817 install a new mergemaster (cd src/usr.sbin/mergemaster && make 818 install) after the buildworld before this step if you last updated 819 from current before 20020224 or from -stable before 20020408. 820 821 [8] In order to have a kernel that can run the 4.x binaries 822 needed to do an installworld, you must include the COMPAT_FREEBSD4 823 option in your kernel. Failure to do so may leave you with a system 824 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 825 is required to run the 5.x binaries on more recent kernels. 826 827 Make sure that you merge any new devices from GENERIC since the 828 last time you updated your kernel config file. 829 830 [9] When checking out sources, you must include the -P flag to have 831 cvs prune empty directories. 832 833 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 834 "?=" instead of the "=" assignment operator, so that buildworld can 835 override the CPUTYPE if it needs to. 836 837 MAKEOBJDIRPREFIX must be defined in an environment variable, and 838 not on the command line, or in /etc/make.conf. buildworld will 839 warn if it is improperly defined. 840FORMAT: 841 842This file contains a list, in reverse chronological order, of major 843breakages in tracking -current. Not all things will be listed here, 844and it only starts on October 16, 2004. Updating files can found in 845previous releases if your system is older than this. 846 847Copyright information: 848 849Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 850 851Redistribution, publication, translation and use, with or without 852modification, in full or in part, in any form or format of this 853document are permitted without further permission from the author. 854 855THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 856IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 857WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 858DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 859INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 860(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 861SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 862HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 863STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 864IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 865POSSIBILITY OF SUCH DAMAGE. 866 867If you find this document useful, and you want to, you may buy the 868author a beer. 869 870Contact Warner Losh if you have any questions about your use of 871this document. 872 873$FreeBSD: head/UPDATING 171133 2007-07-01 11:41:27Z gnn $ 874