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 8.x IS SLOW: 12 FreeBSD 8.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. (To disable malloc debugging, run 23 ln -s aj /etc/malloc.conf.) 24 2520081028: 26 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 27 2820081009: 29 The uhci, ohci, ehci and slhci USB Host controller drivers have 30 been put into separate modules. If you load the usb module 31 separately through loader.conf you will need to load the 32 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 33 controller add the following to loader.conf: 34 35 uhci_load="YES" 36 ehci_load="YES" 37 3820081009: 39 The ABI used by the PMC toolset has changed. Please keep 40 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 41 sync. 42 4320080820: 44 The TTY subsystem of the kernel has been replaced by a new 45 implementation, which provides better scalability and an 46 improved driver model. Most common drivers have been migrated to 47 the new TTY subsystem, while others have not. The following 48 drivers have not yet been ported to the new TTY layer: 49 50 PCI/ISA: 51 cy, digi, rc, rp, sio 52 53 USB: 54 ubser, ucycom 55 56 Line disciplines: 57 ng_h4, ng_tty, ppp, sl, snp 58 59 Adding these drivers to your kernel configuration file shall 60 cause compilation to fail. 61 6220080818: 63 ntpd has been upgraded to 4.2.4p5. 64 6520080801: 66 OpenSSH has been upgraded to 5.1p1. 67 68 For many years, FreeBSD's version of OpenSSH preferred DSA 69 over RSA for host and user authentication keys. With this 70 upgrade, we've switched to the vendor's default of RSA over 71 DSA. This may cause upgraded clients to warn about unknown 72 host keys even for previously known hosts. Users should 73 follow the usual procedure for verifying host keys before 74 accepting the RSA key. 75 76 This can be circumvented by setting the "HostKeyAlgorithms" 77 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 78 command line. 79 80 Please note that the sequence of keys offered for 81 authentication has been changed as well. You may want to 82 specify IdentityFile in a different order to revert this 83 behavior. 84 8520080713: 86 The sio(4) driver has been removed from the i386 and amd64 87 kernel configuration files. This means uart(4) is now the 88 default serial port driver on those platforms as well. 89 90 To prevent collisions with the sio(4) driver, the uart(4) driver 91 uses different names for its device nodes. This means the 92 onboard serial port will now most likely be called "ttyu0" 93 instead of "ttyd0". You may need to reconfigure applications to 94 use the new device names. 95 96 When using the serial port as a boot console, be sure to update 97 /boot/device.hints and /etc/ttys before booting the new kernel. 98 If you forget to do so, you can still manually specify the hints 99 at the loader prompt: 100 101 set hint.uart.0.at="isa" 102 set hint.uart.0.port="0x3F8" 103 set hint.uart.0.flags="0x10" 104 set hint.uart.0.irq="4" 105 boot -s 106 10720080609: 108 The gpt(8) utility has been removed. Use gpart(8) to partition 109 disks instead. 110 11120080603: 112 The version that Linuxulator emulates was changed from 2.4.2 113 to 2.6.16. If you experience any problems with Linux binaries 114 please try to set sysctl compat.linux.osrelease to 2.4.2 and 115 if it fixes the problem contact emulation mailing list. 116 11720080525: 118 ISDN4BSD (I4B) was removed from the src tree. You may need to 119 update a your kernel configuration and remove relevant entries. 120 12120080509: 122 I have checked in code to support multiple routing tables. 123 See the man pages setfib(1) and setfib(2). 124 This is a hopefully backwards compatible version, 125 but to make use of it you need to compile your kernel 126 with options ROUTETABLES=2 (or more up to 16). 127 12820080420: 129 The 802.11 wireless support was redone to enable multi-bss 130 operation on devices that are capable. The underlying device 131 is no longer used directly but instead wlanX devices are 132 cloned with ifconfig. This requires changes to rc.conf files. 133 For example, change: 134 ifconfig_ath0="WPA DHCP" 135 to 136 wlans_ath0=wlan0 137 ifconfig_wlan0="WPA DHCP" 138 see rc.conf(5) for more details. In addition, mergemaster of 139 /etc/rc.d is highly recommended. Simultaneous update of userland 140 and kernel wouldn't hurt either. 141 142 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 143 modules were merged into the base wlan module. All references 144 to these modules (e.g. in kernel config files) must be removed. 145 14620080408: 147 psm(4) has gained write(2) support in native operation level. 148 Arbitrary commands can be written to /dev/psm%d and status can 149 be read back from it. Therefore, an application is responsible 150 for status validation and error recovery. It is a no-op in 151 other operation levels. 152 15320080312: 154 Support for KSE threading has been removed from the kernel. To 155 run legacy applications linked against KSE libmap.conf may 156 be used. The following libmap.conf may be used to ensure 157 compatibility with any prior release: 158 159 libpthread.so.1 libthr.so.1 160 libpthread.so.2 libthr.so.2 161 libkse.so.3 libthr.so.3 162 16320080301: 164 The layout of struct vmspace has changed. This affects libkvm 165 and any executables that link against libkvm and use the 166 kvm_getprocs() function. In particular, but not exclusively, 167 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 168 The effects are minimal, but it's advisable to upgrade world 169 nonetheless. 170 17120080229: 172 The latest em driver no longer has support in it for the 173 82575 adapter, this is now moved to the igb driver. The 174 split was done to make new features that are incompatible 175 with older hardware easier to do. 176 17720080220: 178 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 179 likewise the kernel option is now GEOM_LINUX_LVM. 180 18120080211: 182 The default NFS mount mode has changed from UDP to TCP for 183 increased reliability. If you rely on (insecurely) NFS 184 mounting across a firewall you may need to update your 185 firewall rules. 186 18720080208: 188 Belatedly note the addition of m_collapse for compacting 189 mbuf chains. 190 19120080126: 192 The fts(3) structures have been changed to use adequate 193 integer types for their members and so to be able to cope 194 with huge file trees. The old fts(3) ABI is preserved 195 through symbol versioning in libc, so third-party binaries 196 using fts(3) should still work, although they will not take 197 advantage of the extended types. At the same time, some 198 third-party software might fail to build after this change 199 due to unportable assumptions made in its source code about 200 fts(3) structure members. Such software should be fixed 201 by its vendor or, in the worst case, in the ports tree. 202 FreeBSD_version 800015 marks this change for the unlikely 203 case that a portable fix is impossible. 204 20520080123: 206 To upgrade to -current after this date, you must be running 207 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 208 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 209 21020071128: 211 The ADAPTIVE_GIANT kernel option has been retired because its 212 functionality is the default now. 213 21420071118: 215 The AT keyboard emulation of sunkbd(4) has been turned on 216 by default. In order to make the special symbols of the Sun 217 keyboards driven by sunkbd(4) work under X these now have 218 to be configured the same way as Sun USB keyboards driven 219 by ukbd(4) (which also does AT keyboard emulation), f.e.: 220 221 Option "XkbLayout" "us" 222 Option "XkbRules" "xorg" 223 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 224 22520071024: 226 It has been decided that it is desirable to provide ABI 227 backwards compatibility to the FreeBSD 4/5/6 versions of the 228 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 229 broken with the introduction of PCI domain support (see the 230 20070930 entry). Unfortunately, this required the ABI of 231 PCIOCGETCONF to be broken again in order to be able to 232 provide backwards compatibility to the old version of that 233 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 234 again. As for prominent ports this affects neither pciutils 235 nor xorg-server this time, the hal port needs to be rebuilt 236 however. 237 23820071020: 239 The misnamed kthread_create() and friends have been renamed 240 to kproc_create() etc. Many of the callers already 241 used kproc_start().. 242 I will return kthread_create() and friends in a while 243 with implementations that actually create threads, not procs. 244 Renaming corresponds with version 800002. 245 24620071010: 247 RELENG_7 branched. 248 24920071009: 250 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 251 WITHOUT_LIBTHR are set. 252 25320070930: 254 The PCI code has been made aware of PCI domains. This means that 255 the location strings as used by pciconf(8) etc are now in the 256 following format: pci<domain>:<bus>:<device>[:<function>]. It 257 also means that consumers of <sys/pciio.h> potentially need to 258 be recompiled; this includes the hal and xorg-server ports. 259 26020070928: 261 The caching daemon (cached) was renamed to nscd. nscd.conf 262 configuration file should be used instead of cached.conf and 263 nscd_enable, nscd_pidfile and nscd_flags options should be used 264 instead of cached_enable, cached_pidfile and cached_flags in 265 rc.conf. 266 26720070921: 268 The getfacl(1) utility now prints owning user and group name 269 instead of owning uid and gid in the three line comment header. 270 This is the same behavior as getfacl(1) on Solaris and Linux. 271 27220070704: 273 The new IPsec code is now compiled in using the IPSEC option. The 274 IPSEC option now requires "device crypto" be defined in your kernel 275 configuration. The FAST_IPSEC kernel option is now deprecated. 276 27720070702: 278 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 279 note the changed syntax - keep state is now on by default. Also 280 note the fact that ftp-proxy(8) has been changed from bottom up and 281 has been moved from libexec to usr/sbin. Changes in the ALTQ 282 handling also affect users of IPFW's ALTQ capabilities. 283 28420070701: 285 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 286 only IPsec supported by FreeBSD. The new IPsec stack 287 supports both IPv4 and IPv6. The kernel option will change 288 after the code changes have settled in. For now the kernel 289 option IPSEC is deprecated and FAST_IPSEC is the only option, that 290 will change after some settling time. 291 29220070701: 293 The wicontrol(8) utility has been removed from the base system. wi(4) 294 cards should be configured using ifconfig(8), see the man page for more 295 information. 296 29720070612: 298 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 299 instead of the nve(4) driver. Please update your configuration 300 accordingly. 301 30220070612: 303 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 304 database if it is missing or older than the aliases file. If 305 desired, set the new rc.conf option sendmail_rebuild_aliases 306 to "YES" to restore that functionality. 307 30820070612: 309 The IPv4 multicast socket code has been considerably modified, and 310 moved to the file sys/netinet/in_mcast.c. Initial support for the 311 RFC 3678 Source-Specific Multicast Socket API has been added to 312 the IPv4 network stack. 313 314 Strict multicast and broadcast reception is now the default for 315 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 316 has now been removed. 317 318 The RFC 1724 hack for interface selection has been removed; the use 319 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 320 been added to replace it. Consumers such as routed will soon be 321 updated to reflect this. 322 323 These changes affect users who are running routed(8) or rdisc(8) 324 from the FreeBSD base system on point-to-point or unnumbered 325 interfaces. 326 32720070610: 328 The net80211 layer has changed significantly and all wireless 329 drivers that depend on it need to be recompiled. Further these 330 changes require that any program that interacts with the wireless 331 support in the kernel be recompiled; this includes: ifconfig, 332 wpa_supplicant, hostapd, and wlanstats. Users must also, for 333 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 334 if they use modules for wireless support. These modules implement 335 scanning support for station and ap modes, respectively. Failure 336 to load the appropriate module before marking a wireless interface 337 up will result in a message to the console and the device not 338 operating properly. 339 34020070610: 341 The pam_nologin(8) module ceases to provide an authentication 342 function and starts providing an account management function. 343 Consequent changes to /etc/pam.d should be brought in using 344 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 345 need manual editing as follows. Locate this line (or similar): 346 347 auth required pam_nologin.so no_warn 348 349 and change it according to this example: 350 351 account required pam_nologin.so no_warn 352 353 That is, the first word needs to be changed from "auth" to 354 "account". The new line can be moved to the account section 355 within the file for clarity. Not updating pam.conf(5) files 356 will result in nologin(5) ignored by the respective services. 357 35820070529: 359 The ether_ioctl() function has been synchronized with ioctl(2) 360 and ifnet.if_ioctl. Due to that, the size of one of its arguments 361 has changed on 64-bit architectures. All kernel modules using 362 ether_ioctl() need to be rebuilt on such architectures. 363 36420070516: 365 Improved INCLUDE_CONFIG_FILE support has been introduced to the 366 config(8) utility. In order to take advantage of this new 367 functionality, you are expected to recompile and install 368 src/usr.sbin/config. If you don't rebuild config(8), and your 369 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 370 build will be broken because of a missing "kernconfstring" 371 symbol. 372 37320070513: 374 Symbol versioning is enabled by default. To disable it, use 375 option WITHOUT_SYMVER. It is not advisable to attempt to 376 disable symbol versioning once it is enabled; your installworld 377 will break because a symbol version-less libc will get installed 378 before the install tools. As a result, the old install tools, 379 which previously had symbol dependencies to FBSD_1.0, will fail 380 because the freshly installed libc will not have them. 381 382 The default threading library (providing "libpthread") has been 383 changed to libthr. If you wish to have libkse as your default, 384 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 385 38620070423: 387 The ABI breakage in sendmail(8)'s libmilter has been repaired 388 so it is no longer necessary to recompile mail filters (aka, 389 milters). If you recompiled mail filters after the 20070408 390 note, it is not necessary to recompile them again. 391 39220070417: 393 The new trunk(4) driver has been renamed to lagg(4) as it better 394 reflects its purpose. ifconfig will need to be recompiled. 395 39620070408: 397 sendmail(8) has been updated to version 8.14.1. Mail filters 398 (aka, milters) compiled against the libmilter included in the 399 base operating system should be recompiled. 400 40120070302: 402 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 403 In order to use them one must agree to the respective LICENSE in 404 share/doc/legal and define legal.intel_<name>.license_ack=1 via 405 loader.conf(5) or kenv(1). Make sure to deinstall the now 406 deprecated modules from the respective firmware ports. 407 40820070228: 409 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 410 were removed from FreeBSD's libc. These originally came from INRIA 411 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 412 deprecated in previous releases. 413 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 414 replace it as a more portable (and re-entrant) API. 415 41620070224: 417 To support interrupt filtering a modification to the newbus API 418 has occurred, ABI was broken and __FreeBSD_version was bumped 419 to 700031. Please make sure that your kernel and modules are in 420 sync. For more info: 421 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 422 42320070224: 424 The IPv6 multicast forwarding code may now be loaded into GENERIC 425 kernels by loading the ip_mroute.ko module. This is built into the 426 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 427 set; see src.conf(5) for more information. 428 42920070214: 430 The output of netstat -r has changed. Without -n, we now only 431 print a "network name" without the prefix length if the network 432 address and mask exactly match a Class A/B/C network, and an entry 433 exists in the nsswitch "networks" map. 434 With -n, we print the full unabbreviated CIDR network prefix in 435 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 436 This change is in preparation for changes such as equal-cost 437 multipath, and to more generally assist operational deployment 438 of FreeBSD as a modern IPv4 router. 439 44020070210: 441 PIM has been turned on by default in the IPv4 multicast 442 routing code. The kernel option 'PIM' has now been removed. 443 PIM is now built by default if option 'MROUTING' is specified. 444 It may now be loaded into GENERIC kernels by loading the 445 ip_mroute.ko module. 446 44720070207: 448 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 449 has been removed. Its functionality may be achieved by explicitly 450 configuring gif(4) interfaces and using the 'phyint' keyword in 451 mrouted.conf. 452 XORP does not support source-routed IPv4 multicast tunnels nor the 453 integrated IPIP tunneling, therefore it is not affected by this 454 change. The __FreeBSD_version macro has been bumped to 700030. 455 45620061221: 457 Support for PCI Message Signalled Interrupts has been 458 re-enabled in the bge driver, only for those chips which are 459 believed to support it properly. If there are any problems, 460 MSI can be disabled completely by setting the 461 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 462 in the loader. 463 46420061214: 465 Support for PCI Message Signalled Interrupts has been 466 disabled again in the bge driver. Many revisions of the 467 hardware fail to support it properly. Support can be 468 re-enabled by removing the #define of BGE_DISABLE_MSI in 469 "src/sys/dev/bge/if_bge.c". 470 47120061214: 472 Support for PCI Message Signalled Interrupts has been added 473 to the bge driver. If there are any problems, MSI can be 474 disabled completely by setting the 'hw.pci.enable_msi' and 475 'hw.pci.enable_msix' tunables to 0 in the loader. 476 47720061205: 478 The removal of several facets of the experimental Threading 479 system from the kernel means that the proc and thread structures 480 have changed quite a bit. I suggest all kernel modules that might 481 reference these structures be recompiled.. Especially the 482 linux module. 483 48420061126: 485 Sound infrastructure has been updated with various fixes and 486 improvements. Most of the changes are pretty much transparent, 487 with exceptions of followings: 488 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 489 moved to their own dev sysctl nodes, for example: 490 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 491 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 492 own chardev in the form of "dsp%d.<function>%d", where <function> 493 is p = playback, r = record and v = virtual, respectively. Users 494 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 495 This does not affect those who are using "/dev/dsp". 496 49720061122: 498 geom(4)'s gmirror(8) class metadata structure has been 499 rev'd from v3 to v4. If you update across this point and 500 your metadata is converted for you, you will not be easily 501 able to downgrade since the /boot/kernel.old/geom_mirror.ko 502 kernel module will be unable to read the v4 metadata. You 503 can resolve this by doing from the loader(8) prompt: 504 505 set vfs.root.mountfrom="ufs:/dev/XXX" 506 507 where XXX is the root slice of one of the disks that composed 508 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 509 the array the same way you built it originally. 510 51120061122: 512 The following binaries have been disconnected from the build: 513 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 514 and mount_std. The functionality of these programs has been 515 moved into the mount program. For example, to mount a devfs 516 filesystem, instead of using mount_devfs, use: "mount -t devfs". 517 This does not affect entries in /etc/fstab, since entries in 518 /etc/fstab are always processed with "mount -t fstype". 519 52020061113: 521 Support for PCI Message Signalled Interrupts on i386 and amd64 522 has been added to the kernel and various drivers will soon be 523 updated to use MSI when it is available. If there are any problems, 524 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 525 and 'hw.pci.enable_msix' tunables to 0 in the loader. 526 52720061110: 528 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 529 The lockmgr object layout has been changed as a result of having 530 a lock_object embedded in it. As a consequence all file system 531 kernel modules must be re-compiled. The mutex profiling man page 532 has not yet been updated to reflect this change. 533 53420061026: 535 KSE in the kernel has now been made optional and turned on by 536 default. Use 'nooption KSE' in your kernel config to turn it 537 off. All kernel modules *must* be recompiled after this change. 538 There-after, modules from a KSE kernel should be compatible with 539 modules from a NOKSE kernel due to the temporary padding fields 540 added to 'struct proc'. 541 54220060929: 543 mrouted and its utilities have been removed from the base system. 544 54520060927: 546 Some ioctl(2) command codes have changed. Full backward ABI 547 compatibility is provided if the "options COMPAT_FREEBSD6" is 548 present in the kernel configuration file. Make sure to add 549 this option to your kernel config file, or recompile X.Org 550 and the rest of ports; otherwise they may refuse to work. 551 55220060924: 553 tcpslice has been removed from the base system. 554 55520060913: 556 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 557 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 558 systat needs to be rebuilt. 559 56020060903: 561 libpcap updated to v0.9.4 and tcpdump to v3.9.4 562 56320060816: 564 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 565 for IPFIREWALL_FORWARD is now as it was before when it was first 566 committed and for years after. The behaviour is now ON. 567 56820060725: 569 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 570 Now it can decrypt files created from different architectures. 571 Unfortunately, it is no longer able to decrypt a cipher text 572 generated with an older version on 64 bit architectures. 573 If you have such a file, you need old utility to decrypt it. 574 57520060709: 576 The interface version of the i4b kernel part has changed. So 577 after updating the kernel sources and compiling a new kernel, 578 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 579 be rebuilt, and vice versa. 580 58120060627: 582 The XBOX kernel now defaults to the nfe(4) driver instead of 583 the nve(4) driver. Please update your configuration 584 accordingly. 585 58620060514: 587 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 588 PCnet family of NICs has been removed. The new le(4) driver serves 589 as an equivalent but cross-platform replacement with the pcn(4) 590 driver still providing performance-optimized support for the subset 591 of AMD Am79C971 PCnet-FAST and greater chips as before. 592 59320060511: 594 The machdep.* sysctls and the adjkerntz utility have been 595 modified a bit. The new adjkerntz utility uses the new 596 sysctl names and sysctlbyname() calls, so it may be impossible 597 to run an old /sbin/adjkerntz utility in single-user mode 598 with a new kernel. Replace the `adjkerntz -i' step before 599 `make installworld' with: 600 601 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 602 603 and proceed as usual with the rest of the installworld-stage 604 steps. Otherwise, you risk installing binaries with their 605 timestamp set several hours in the future, especially if 606 you are running with local time set to GMT+X hours. 607 60820060412: 609 The ip6fw utility has been removed. The behavior provided by 610 ip6fw has been in ipfw2 for a good while and the rc.d scripts 611 have been updated to deal with it. There are some rules that 612 might not migrate cleanly. Use rc.firewall6 as a template to 613 rewrite rules. 614 61520060428: 616 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 617 attachments have been removed. Make sure to configure scc(4) 618 on sparc64. Note also that by default puc(4) will use uart(4) 619 and not sio(4) for serial ports because interrupt handling has 620 been optimized for multi-port serial cards and only uart(4) 621 implements the interface to support it. 622 62320060330: 624 The scc(4) driver replaces puc(4) for Serial Communications 625 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 626 Z8530. On sparc64, it is advised to add scc(4) to the kernel 627 configuration to make sure that the serial ports remain 628 functional. 629 63020060317: 631 Most world/kernel related NO_* build options changed names. 632 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 633 after FreeBSD ports) and should be set in /etc/src.conf 634 (the src.conf(5) manpage is provided). Full backwards 635 compatibility is maintained for the time being though it's 636 highly recommended to start moving old options out of the 637 system-wide /etc/make.conf file into the new /etc/src.conf 638 while also properly renaming them. More conversions will 639 likely follow. Posting to current@: 640 641 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 642 64320060305: 644 The NETSMBCRYPTO kernel option has been retired because its 645 functionality is always included in NETSMB and smbfs.ko now. 646 64720060303: 648 The TDFX_LINUX kernel option was retired and replaced by the 649 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 650 kernel module. Loading it alone should suffice to get 3dfx support 651 for Linux apps because it will pull in 3dfx.ko and linux.ko through 652 its dependencies. 653 65420060204: 655 The 'audit' group was added to support the new auditing functionality 656 in the base system. Be sure to follow the directions for updating, 657 including the requirement to run mergemaster -p. 658 65920060201: 660 The kernel ABI to file system modules was changed on i386. 661 Please make sure that your kernel and modules are in sync. 662 66320060118: 664 This actually occured some time ago, but installing the kernel 665 now also installs a bunch of symbol files for the kernel modules. 666 This increases the size of /boot/kernel to about 67Mbytes. You 667 will need twice this if you will eventually back this up to kernel.old 668 on your next install. 669 If you have a shortage of room in your root partition, you should add 670 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 671 to your /etc/make.conf. 672 67320060113: 674 libc's malloc implementation has been replaced. This change has the 675 potential to uncover application bugs that previously went unnoticed. 676 See the malloc(3) manual page for more details. 677 67820060112: 679 The generic netgraph(4) cookie has been changed. If you upgrade 680 kernel passing this point, you also need to upgrade userland 681 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 682 68320060106: 684 si(4)'s device files now contain the unit number. 685 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 686 68720060106: 688 The kernel ABI was mostly destroyed due to a change in the size 689 of struct lock_object which is nested in other structures such 690 as mutexes which are nested in all sorts of other structures. 691 Make sure your kernel and modules are in sync. 692 69320051231: 694 The page coloring algorithm in the VM subsystem was converted 695 from tuning with kernel options to autotuning. Please remove 696 any PQ_* option except PQ_NOOPT from your kernel config. 697 69820051211: 699 The net80211-related tools in the tools/tools/ath directory 700 have been moved to tools/tools/net80211 and renamed with a 701 "wlan" prefix. Scripts that use them should be adjusted 702 accordingly. 703 70420051202: 705 Scripts in the local_startup directories (as defined in 706 /etc/defaults/rc.conf) that have the new rc.d semantics will 707 now be run as part of the base system rcorder. If there are 708 errors or problems with one of these local scripts, it could 709 cause boot problems. If you encounter such problems, boot in 710 single user mode, remove that script from the */rc.d directory. 711 Please report the problem to the port's maintainer, and the 712 freebsd-ports@freebsd.org mailing list. 713 71420051129: 715 The nodev mount option was deprecated in RELENG_6 (where it 716 was a no-op), and is now unsupported. If you have nodev or dev listed 717 in /etc/fstab, remove it, otherwise it will result in a mount error. 718 71920051129: 720 ABI between ipfw(4) and ipfw(8) has been changed. You need 721 to rebuild ipfw(8) when rebuilding kernel. 722 72320051108: 724 rp(4)'s device files now contain the unit number. 725 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 726 72720051029: 728 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 729 Its /etc/rc.conf.d configuration file has been `ppp' from 730 the beginning, and hence there is no need to touch it. 731 73220051014: 733 Now most modules get their build-time options from the kernel 734 configuration file. A few modules still have fixed options 735 due to their non-conformant implementation, but they will be 736 corrected eventually. You may need to review the options of 737 the modules in use, explicitly specify the non-default options 738 in the kernel configuration file, and rebuild the kernel and 739 modules afterwards. 740 74120051001: 742 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 743 to turn polling(4) on your interfaces. 744 74520050927: 746 The old bridge(4) implementation was retired. The new 747 if_bridge(4) serves as a full functional replacement. 748 74920050722: 750 The ai_addrlen of a struct addrinfo was changed to a socklen_t 751 to conform to POSIX-2001. This change broke an ABI 752 compatibility on 64 bit architecture. You have to recompile 753 userland programs that use getaddrinfo(3) on 64 bit 754 architecture. 755 75620050711: 757 RELENG_6 branched here. 758 75920050629: 760 The pccard_ifconfig rc.conf variable has been removed and a new 761 variable, ifconfig_DEFAULT has been introduced. Unlike 762 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 763 do not have ifconfig_ifn entries rather than just those in 764 removable_interfaces. 765 76620050616: 767 Some previous versions of PAM have permitted the use of 768 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 769 to third party PAM modules in /usr/local/lib. A change has been 770 made to require the use of absolute paths in order to avoid 771 ambiguity and dependence on library path configuration, which may 772 affect existing configurations. 773 77420050610: 775 Major changes to network interface API. All drivers must be 776 recompiled. Drivers not in the base system will need to be 777 updated to the new APIs. 778 77920050609: 780 Changes were made to kinfo_proc in sys/user.h. Please recompile 781 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 782 will not behave correctly. 783 784 The API and ABI for hwpmc(4) have changed with the addition 785 of sampling support. Please recompile lib/libpmc(3) and 786 usr.sbin/{pmcstat,pmccontrol}. 787 78820050606: 789 The OpenBSD dhclient was imported in place of the ISC dhclient 790 and the network interface configuration scripts were updated 791 accordingly. If you use DHCP to configure your interfaces, you 792 must now run devd. Also, DNS updating was lost so you will need 793 to find a workaround if you use this feature. 794 795 The '_dhcp' user was added to support the OpenBSD dhclient. Be 796 sure to run mergemaster -p (like you are supposed to do every time 797 anyway). 798 79920050605: 800 if_bridge was added to the tree. This has changed struct ifnet. 801 Please recompile userland and all network related modules. 802 80320050603: 804 The n_net of a struct netent was changed to an uint32_t, and 805 1st argument of getnetbyaddr() was changed to an uint32_t, to 806 conform to POSIX-2001. These changes broke an ABI 807 compatibility on 64 bit architecture. With these changes, 808 shlib major of libpcap was bumped. You have to recompile 809 userland programs that use getnetbyaddr(3), getnetbyname(3), 810 getnetent(3) and/or libpcap on 64 bit architecture. 811 81220050528: 813 Kernel parsing of extra options on '#!' first lines of shell 814 scripts has changed. Lines with multiple options likely will 815 fail after this date. For full details, please see 816 http://people.freebsd.org/~gad/Updating-20050528.txt 817 81820050503: 819 The packet filter (pf) code has been updated to OpenBSD 3.7 820 Please note the changed anchor syntax and the fact that 821 authpf(8) now needs a mounted fdescfs(5) to function. 822 82320050415: 824 The NO_MIXED_MODE kernel option has been removed from the i386 825 amd64 platforms as its use has been superceded by the new local 826 APIC timer code. Any kernel config files containing this option 827 should be updated. 828 82920050227: 830 The on-disk format of LC_CTYPE files was changed to be machine 831 independent. Please make sure NOT to use NO_CLEAN buildworld 832 when crossing this point. Crossing this point also requires 833 recompile or reinstall of all locale depended packages. 834 83520050225: 836 The ifi_epoch member of struct if_data has been changed to 837 contain the uptime at which the interface was created or the 838 statistics zeroed rather then the wall clock time because 839 wallclock time may go backwards. This should have no impact 840 unless an snmp implementation is using this value (I know of 841 none at this point.) 842 84320050224: 844 The acpi_perf and acpi_throttle drivers are now part of the 845 acpi(4) main module. They are no longer built separately. 846 84720050223: 848 The layout of struct image_params has changed. You have to 849 recompile all compatibility modules (linux, svr4, etc) for use 850 with the new kernel. 851 85220050223: 853 The p4tcc driver has been merged into cpufreq(4). This makes 854 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 855 compile in "device cpufreq" to restore this functionality. 856 85720050220: 858 The responsibility of recomputing the file system summary of 859 a SoftUpdates-enabled dirty volume has been transferred to the 860 background fsck. A rebuild of fsck(8) utility is recommended 861 if you have updated the kernel. 862 863 To get the old behavior (recompute file system summary at mount 864 time), you can set vfs.ffs.compute_summary_at_mount=1 before 865 mounting the new volume. 866 86720050206: 868 The cpufreq import is complete. As part of this, the sysctls for 869 acpi(4) throttling have been removed. The power_profile script 870 has been updated, so you can use performance/economy_cpu_freq in 871 rc.conf(5) to set AC on/offline cpu frequencies. 872 87320050206: 874 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 875 requires recompiling libnetgraph and userland netgraph utilities. 876 87720050114: 878 Support for abbreviated forms of a number of ipfw options is 879 now deprecated. Warnings are printed to stderr indicating the 880 correct full form when a match occurs. Some abbreviations may 881 be supported at a later date based on user feedback. To be 882 considered for support, abbreviations must be in use prior to 883 this commit and unlikely to be confused with current key words. 884 88520041221: 886 By a popular demand, a lot of NOFOO options were renamed 887 to NO_FOO (see bsd.compat.mk for a full list). The old 888 spellings are still supported, but will cause annoying 889 warnings on stderr. Make sure you upgrade properly (see 890 the COMMON ITEMS: section later in this file). 891 89220041219: 893 Auto-loading of ancillary wlan modules such as wlan_wep has 894 been temporarily disabled; you need to statically configure 895 the modules you need into your kernel or explicitly load them 896 prior to use. Specifically, if you intend to use WEP encryption 897 with an 802.11 device load/configure wlan_wep; if you want to 898 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 899 and wlan_xauth as required. 900 90120041213: 902 The behaviour of ppp(8) has changed slightly. If lqr is enabled 903 (``enable lqr''), older versions would revert to LCP ECHO mode on 904 negotiation failure. Now, ``enable echo'' is required for this 905 behaviour. The ppp version number has been bumped to 3.4.2 to 906 reflect the change. 907 90820041201: 909 The wlan support has been updated to split the crypto support 910 into separate modules. For static WEP you must configure the 911 wlan_wep module in your system or build and install the module 912 in place where it can be loaded (the kernel will auto-load 913 the module when a wep key is configured). 914 91520041201: 916 The ath driver has been updated to split the tx rate control 917 algorithm into a separate module. You need to include either 918 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 919 92020041116: 921 Support for systems with an 80386 CPU has been removed. Please 922 use FreeBSD 5.x or earlier on systems with an 80386. 923 92420041110: 925 We have had a hack which would mount the root filesystem 926 R/W if the device were named 'md*'. As part of the vnode 927 work I'm doing I have had to remove this hack. People 928 building systems which use preloaded MD root filesystems 929 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 930 their /etc/rc scripts. 931 93220041104: 933 FreeBSD 5.3 shipped here. 934 93520041102: 936 The size of struct tcpcb has changed again due to the removal 937 of RFC1644 T/TCP. You have to recompile userland programs that 938 read kmem for tcp sockets directly (netstat, sockstat, etc.) 939 94020041022: 941 The size of struct tcpcb has changed. You have to recompile 942 userland programs that read kmem for tcp sockets directly 943 (netstat, sockstat, etc.) 944 94520041016: 946 RELENG_5 branched here. For older entries, please see updating 947 in the RELENG_5 branch. 948 949COMMON ITEMS: 950 951 General Notes 952 ------------- 953 Avoid using make -j when upgrading. From time to time in the 954 past there have been problems using -j with buildworld and/or 955 installworld. This is especially true when upgrading between 956 "distant" versions (eg one that cross a major release boundary 957 or several minor releases, or when several months have passed 958 on the -current branch). 959 960 Sometimes, obscure build problems are the result of environment 961 poisoning. This can happen because the make utility reads its 962 environment when searching for values for global variables. 963 To run your build attempts in an "environmental clean room", 964 prefix all make commands with 'env -i '. See the env(1) manual 965 page for more details. 966 967 When upgrading from one major version to another it is generally 968 best to upgrade to the latest code in the currently installed branch 969 first, then do an upgrade to the new branch. This is the best-tested 970 upgrade path, and has the highest probability of being successful. 971 Please try this approach before reporting problems with a major 972 version upgrade. 973 974 To build a kernel 975 ----------------- 976 If you are updating from a prior version of FreeBSD (even one just 977 a few days old), you should follow this procedure. It is the most 978 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 979 980 make kernel-toolchain 981 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 982 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 983 984 To test a kernel once 985 --------------------- 986 If you just want to boot a kernel once (because you are not sure 987 if it works, or if you want to boot a known bad kernel to provide 988 debugging information) run 989 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 990 nextboot -k testkernel 991 992 To just build a kernel when you know that it won't mess you up 993 -------------------------------------------------------------- 994 This assumes you are already running a 5.X system. Replace 995 ${arch} with the architecture of your machine (e.g. "i386", 996 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 997 998 cd src/sys/${arch}/conf 999 config KERNEL_NAME_HERE 1000 cd ../compile/KERNEL_NAME_HERE 1001 make depend 1002 make 1003 make install 1004 1005 If this fails, go to the "To build a kernel" section. 1006 1007 To rebuild everything and install it on the current system. 1008 ----------------------------------------------------------- 1009 # Note: sometimes if you are running current you gotta do more than 1010 # is listed here if you are upgrading from a really old current. 1011 1012 <make sure you have good level 0 dumps> 1013 make buildworld 1014 make kernel KERNCONF=YOUR_KERNEL_HERE 1015 [1] 1016 <reboot in single user> [3] 1017 mergemaster -p [5] 1018 make installworld 1019 make delete-old 1020 mergemaster [4] 1021 <reboot> 1022 1023 1024 To cross-install current onto a separate partition 1025 -------------------------------------------------- 1026 # In this approach we use a separate partition to hold 1027 # current's root, 'usr', and 'var' directories. A partition 1028 # holding "/", "/usr" and "/var" should be about 2GB in 1029 # size. 1030 1031 <make sure you have good level 0 dumps> 1032 <boot into -stable> 1033 make buildworld 1034 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1035 <maybe newfs current's root partition> 1036 <mount current's root partition on directory ${CURRENT_ROOT}> 1037 make installworld DESTDIR=${CURRENT_ROOT} 1038 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1039 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1040 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1041 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1042 <reboot into current> 1043 <do a "native" rebuild/install as described in the previous section> 1044 <maybe install compatibility libraries from ports/misc/compat*> 1045 <reboot> 1046 1047 1048 To upgrade in-place from 5.x-stable to current 1049 ---------------------------------------------- 1050 <make sure you have good level 0 dumps> 1051 make buildworld [9] 1052 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1053 [1] 1054 <reboot in single user> [3] 1055 mergemaster -p [5] 1056 make installworld 1057 make delete-old 1058 mergemaster -i [4] 1059 <reboot> 1060 1061 Make sure that you've read the UPDATING file to understand the 1062 tweaks to various things you need. At this point in the life 1063 cycle of current, things change often and you are on your own 1064 to cope. The defaults can also change, so please read ALL of 1065 the UPDATING entries. 1066 1067 Also, if you are tracking -current, you must be subscribed to 1068 freebsd-current@freebsd.org. Make sure that before you update 1069 your sources that you have read and understood all the recent 1070 messages there. If in doubt, please track -stable which has 1071 much fewer pitfalls. 1072 1073 [1] If you have third party modules, such as vmware, you 1074 should disable them at this point so they don't crash your 1075 system on reboot. 1076 1077 [3] From the bootblocks, boot -s, and then do 1078 fsck -p 1079 mount -u / 1080 mount -a 1081 cd src 1082 adjkerntz -i # if CMOS is wall time 1083 Also, when doing a major release upgrade, it is required that 1084 you boot into single user mode to do the installworld. 1085 1086 [4] Note: This step is non-optional. Failure to do this step 1087 can result in a significant reduction in the functionality of the 1088 system. Attempting to do it by hand is not recommended and those 1089 that pursue this avenue should read this file carefully, as well 1090 as the archives of freebsd-current and freebsd-hackers mailing lists 1091 for potential gotchas. 1092 1093 [5] Usually this step is a noop. However, from time to time 1094 you may need to do this if you get unknown user in the following 1095 step. It never hurts to do it all the time. You may need to 1096 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1097 install) after the buildworld before this step if you last updated 1098 from current before 20020224 or from -stable before 20020408. 1099 1100 [8] In order to have a kernel that can run the 4.x binaries 1101 needed to do an installworld, you must include the COMPAT_FREEBSD4 1102 option in your kernel. Failure to do so may leave you with a system 1103 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1104 is required to run the 5.x binaries on more recent kernels. 1105 1106 Make sure that you merge any new devices from GENERIC since the 1107 last time you updated your kernel config file. 1108 1109 [9] When checking out sources, you must include the -P flag to have 1110 cvs prune empty directories. 1111 1112 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1113 "?=" instead of the "=" assignment operator, so that buildworld can 1114 override the CPUTYPE if it needs to. 1115 1116 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1117 not on the command line, or in /etc/make.conf. buildworld will 1118 warn if it is improperly defined. 1119FORMAT: 1120 1121This file contains a list, in reverse chronological order, of major 1122breakages in tracking -current. Not all things will be listed here, 1123and it only starts on October 16, 2004. Updating files can found in 1124previous releases if your system is older than this. 1125 1126Copyright information: 1127 1128Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1129 1130Redistribution, publication, translation and use, with or without 1131modification, in full or in part, in any form or format of this 1132document are permitted without further permission from the author. 1133 1134THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1135IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1136WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1137DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1138INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1139(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1140SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1141HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1142STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1143IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1144POSSIBILITY OF SUCH DAMAGE. 1145 1146If you find this document useful, and you want to, you may buy the 1147author a beer. 1148 1149Contact Warner Losh if you have any questions about your use of 1150this document. 1151 1152$FreeBSD$ 1153