UPDATING revision 191672
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 2520090429: 26 MLDv2 and Source-Specific Multicast (SSM) have been merged 27 to the IPv6 stack. VIMAGE hooks are in but not yet used. 28 The implementation of SSM within FreeBSD's IPv6 stack closely 29 follows the IPv4 implementation. 30 31 For kernel developers: 32 33 * The most important changes are that the ip6_output() and 34 ip6_input() paths no longer take the IN6_MULTI_LOCK, 35 and this lock has been downgraded to a non-recursive mutex. 36 37 * As with the changes to the IPv4 stack to support SSM, filtering 38 of inbound multicast traffic must now be performed by transport 39 protocols within the IPv6 stack. This does not apply to TCP and 40 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 41 42 * The KPIs used by IPv6 multicast are similar to those used by 43 the IPv4 stack, with the following differences: 44 * im6o_mc_filter() is analogous to imo_multicast_filter(). 45 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 46 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 47 * IN6_LOOKUP_MULTI() has been deprecated and removed. 48 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 49 for MLDv1 have an additional 'timer' argument which is used to 50 jitter the initial membership report for the solicited-node 51 multicast membership on-link. 52 * This is not strictly needed for MLDv2, which already jitters 53 its report transmissions. However, the 'timer' argument is 54 preserved in case MLDv1 is active on the interface. 55 56 * The KAME linked-list based IPv6 membership implementation has 57 been refactored to use a vector similar to that used by the IPv4 58 stack. 59 Code which maintains a list of its own multicast memberships 60 internally, e.g. carp, has been updated to reflect the new 61 semantics. 62 63 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 64 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 65 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 66 implementation constraint which needs to be addressed in HEAD. 67 68 For application developers: 69 70 * The changes are broadly similar to those made for the IPv4 71 stack. 72 73 * The use of IPv4 and IPv6 multicast socket options on the same 74 socket, using mapped addresses, HAS NOT been tested or supported. 75 76 * There are a number of issues with the implementation of various 77 IPv6 multicast APIs which need to be resolved in the API surface 78 before the implementation is fully compatible with KAME userland 79 use, and these are mostly to do with interface index treatment. 80 81 * The literature available discusses the use of either the delta / ASM 82 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 83 using setsourcefilter(3)/getsourcefilter(3). For more information 84 please refer to RFC 3768, 'Socket Interface Extensions for 85 Multicast Source Filters'. 86 87 * Applications which use the published RFC 3678 APIs should be fine. 88 89 For systems administrators: 90 91 * The mtest(8) utility has been refactored to support IPv6, in 92 addition to IPv4. Interface addresses are no longer accepted 93 as arguments, their names must be used instead. The utility 94 will map the interface name to its first IPv4 address as 95 returned by getifaddrs(3). 96 97 * The ifmcstat(8) utility has also been updated to print the MLDv2 98 endpoint state and source filter lists via sysctl(3). 99 100 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 101 loopback of IPv6 multicast datagrams by default; it defaults to 1 102 to preserve the existing behaviour. Disabling multicast loopback is 103 recommended for optimal system performance. 104 105 * The IPv6 MROUTING code has been changed to examine this sysctl 106 instead of attempting to perform a group lookup before looping 107 back forwarded datagrams. 108 109 Bump __FreeBSD_version to 800084. 110 11120090422: 112 Implement low-level Bluetooth HCI API. 113 Bump __FreeBSD_version to 800083. 114 11520090419: 116 The layout of struct malloc_type, used by modules to register new 117 memory allocation types, has changed. Most modules will need to 118 be rebuilt or panics may be experienced. 119 Bump __FreeBSD_version to 800081. 120 12120090415: 122 Anticipate overflowing inp_flags - add inp_flags2. 123 This changes most offsets in inpcb, so checking v4 connection 124 state will require a world rebuild. 125 Bump __FreeBSD_version to 800080. 126 12720090415: 128 Add an llentry to struct route and struct route_in6. Modules 129 embedding a struct route will need to be recompiled. 130 Bump __FreeBSD_version to 800079. 131 13220090414: 133 The size of rt_metrics_lite and by extension rtentry has changed. 134 Networking administration apps will need to be recompiled. 135 The route command now supports show as an alias for get, weighting 136 of routes, sticky and nostick flags to alter the behavior of stateful 137 load balancing. 138 Bump __FreeBSD_version to 800078. 139 14020090408: 141 Do not use Giant for kbdmux(4) locking. This is wrong and 142 apparently causing more problems than it solves. This will 143 re-open the issue where interrupt handlers may race with 144 kbdmux(4) in polling mode. Typical symptoms include (but 145 not limited to) duplicated and/or missing characters when 146 low level console functions (such as gets) are used while 147 interrupts are enabled (for example geli password prompt, 148 mountroot prompt etc.). Disabling kbdmux(4) may help. 149 15020090407: 151 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 152 kernel modules referencing any of the above need to be recompiled. 153 Bump __FreeBSD_version to 800075. 154 15520090320: 156 GEOM_PART has become the default partition slicer for storage devices, 157 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 158 introduces some changes: 159 160 MSDOS/EBR: the devices created from MSDOS extended partition entries 161 (EBR) can be named differently than with GEOM_MBR and are now symlinks 162 to devices with offset-based names. fstabs may need to be modified. 163 164 BSD: the "geometry does not match label" warning is harmless in most 165 cases but it points to problems in file system misalignment with 166 disk geometry. The "c" partition is now implicit, covers the whole 167 top-level drive and cannot be (mis)used by users. 168 169 General: Kernel dumps are now not allowed to be written to devices 170 whose partition types indicate they are meant to be used for file 171 systems (or, in case of MSDOS partitions, as something else than 172 the "386BSD" type). 173 174 Most of these changes date approximately from 200812. 175 17620090319: 177 The uscanner(4) driver has been removed from the kernel. This follows 178 Linux removing theirs in 2.6 and making libusb the default interface 179 (supported by sane). 180 18120090319: 182 The multicast forwarding code has been cleaned up. netstat(1) 183 only relies on KVM now for printing bandwidth upcall meters. 184 The IPv4 and IPv6 modules are split into ip_mroute_mod and 185 ip6_mroute_mod respectively. The config(5) options for statically 186 compiling this code remain the same, i.e. 'options MROUTING'. 187 18820090315: 189 Support for the IFF_NEEDSGIANT network interface flag has been 190 removed, which means that non-MPSAFE network device drivers are no 191 longer supported. In particular, if_ar, if_sr, and network device 192 drivers from the old (legacy) USB stack can no longer be built or 193 used. 194 19520090313: 196 POSIX.1 Native Language Support (NLS) has been enabled in libc and 197 a bunch of new language catalog files have also been added. 198 This means that some common libc messages are now localized and 199 they depend on the LC_MESSAGES environmental variable. 200 20120090313: 202 The k8temp(4) driver has been renamed to amdtemp(4) since 203 support for K10 and K11 CPU families was added. 204 20520090309: 206 IGMPv3 and Source-Specific Multicast (SSM) have been merged 207 to the IPv4 stack. VIMAGE hooks are in but not yet used. 208 209 For kernel developers, the most important changes are that the 210 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 211 and this lock has been downgraded to a non-recursive mutex. 212 213 Transport protocols (UDP, Raw IP) are now responsible for filtering 214 inbound multicast traffic according to group membership and source 215 filters. The imo_multicast_filter() KPI exists for this purpose. 216 Transports which do not use multicast (SCTP, TCP) already reject 217 multicast by default. Forwarding and receive performance may improve 218 as a mutex acquisition is no longer needed in the ip_input() 219 low-level input path. in_addmulti() and in_delmulti() are shimmed 220 to new KPIs which exist to support SSM in-kernel. 221 222 For application developers, it is recommended that loopback of 223 multicast datagrams be disabled for best performance, as this 224 will still cause the lock to be taken for each looped-back 225 datagram transmission. The net.inet.ip.mcast.loop sysctl may 226 be tuned to 0 to disable loopback by default; it defaults to 1 227 to preserve the existing behaviour. 228 229 For systems administrators, to obtain best performance with 230 multicast reception and multiple groups, it is always recommended 231 that a card with a suitably precise hash filter is used. Hash 232 collisions will still result in the lock being taken within the 233 transport protocol input path to check group membership. 234 235 If deploying FreeBSD in an environment with IGMP snooping switches, 236 it is recommended that the net.inet.igmp.sendlocal sysctl remain 237 enabled; this forces 224.0.0.0/24 group membership to be announced 238 via IGMP. 239 240 The size of 'struct igmpstat' has changed; netstat needs to be 241 recompiled to reflect this. 242 Bump __FreeBSD_version to 800070. 243 24420090309: 245 libusb20.so.1 is now installed as libusb.so.1 and the ports system 246 updated to use it. This requires a buildworld/installworld in order to 247 update the library and dependencies (usbconfig, etc). Its advisable to 248 rebuild all ports which uses libusb. More specific directions are given 249 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 250 libusb are no longer required and can be removed. 251 25220090302: 253 A workaround is committed to allow the creation of System V shared 254 memory segment of size > 2 GB on the 64-bit architectures. 255 Due to a limitation of the existing ABI, the shm_segsz member 256 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 257 wrong for large segments. Note that limits must be explicitely 258 raised to allow such segments to be created. 259 26020090301: 261 The layout of struct ifnet has changed, requiring a rebuild of all 262 network device driver modules. 263 26420090227: 265 The /dev handling for the new USB stack has changed, a 266 buildworld/installworld is required for libusb20. 267 26820090223: 269 The new USB2 stack has now been permanently moved in and all kernel and 270 module names reverted to their previous values (eg, usb, ehci, ohci, 271 ums, ...). The old usb stack can be compiled in by prefixing the name 272 with the letter 'o', the old usb modules have been removed. 273 Updating entry 20090216 for xorg and 20090215 for libmap may still 274 apply. 275 27620090217: 277 The rc.conf(5) option if_up_delay has been renamed to 278 defaultroute_delay to better reflect its purpose. If you have 279 customized this setting in /etc/rc.conf you need to update it to 280 use the new name. 281 28220090216: 283 xorg 7.4 wants to configure its input devices via hald which does not 284 yet work with USB2. If the keyboard/mouse does not work in xorg then 285 add 286 Option "AllowEmptyInput" "off" 287 to your ServerLayout section. This will cause X to use the configured 288 kbd and mouse sections from your xorg.conf. 289 29020090215: 291 The GENERIC kernels for all architectures now default to the new USB2 292 stack. No kernel config options or code have been removed so if a 293 problem arises please report it and optionally revert to the old USB 294 stack. If you are loading USB kernel modules or have a custom kernel 295 that includes GENERIC then ensure that usb names are also changed over, 296 eg uftdi -> usb2_serial_ftdi. 297 298 Older programs linked against the ports libusb 0.1 need to be 299 redirected to the new stack's libusb20. /etc/libmap.conf can 300 be used for this: 301 # Map old usb library to new one for usb2 stack 302 libusb-0.1.so.8 libusb20.so.1 303 30420090203: 305 The ichsmb(4) driver has been changed to require SMBus slave 306 addresses be left-justified (xxxxxxx0b) rather than right-justified. 307 All of the other SMBus controller drivers require left-justified 308 slave addresses, so this change makes all the drivers provide the 309 same interface. 310 31120090201: 312 INET6 statistics (struct ip6stat) was updated. 313 netstat(1) needs to be recompiled. 314 31520090119: 316 NTFS has been removed from GENERIC kernel on amd64 to match 317 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 318 will load ntfs.ko module automatically when NTFS support is 319 actually needed, unless ntfs.ko is not installed or security 320 level prohibits loading kernel modules. If either is the case, 321 "options NTFS" has to be added into kernel config. 322 32320090115: 324 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 325 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 326 800061. User space tools that rely on the size of struct tcpcb in 327 tcp_var.h (e.g. sockstat) need to be recompiled. 328 32920081225: 330 ng_tty(4) module updated to match the new TTY subsystem. 331 Due to API change, user-level applications must be updated. 332 New API support added to mpd5 CVS and expected to be present 333 in next mpd5.3 release. 334 33520081219: 336 With __FreeBSD_version 800060 the makefs tool is part of 337 the base system (it was a port). 338 33920081216: 340 The afdata and ifnet locks have been changed from mutexes to 341 rwlocks, network modules will need to be re-compiled. 342 34320081214: 344 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 345 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 346 The new code reduced struct rtentry{} by 16 bytes on 32-bit 347 architecture and 40 bytes on 64-bit architecture. The userland 348 applications "arp" and "ndp" have been updated accordingly. 349 The output from "netstat -r" shows only routing entries and 350 none of the L2 information. 351 35220081130: 353 __FreeBSD_version 800057 marks the switchover from the 354 binary ath hal to source code. Users must add the line: 355 356 options AH_SUPPORT_AR5416 357 358 to their kernel config files when specifying: 359 360 device ath_hal 361 362 The ath_hal module no longer exists; the code is now compiled 363 together with the driver in the ath module. It is now 364 possible to tailor chip support (i.e. reduce the set of chips 365 and thereby the code size); consult ath_hal(4) for details. 366 36720081121: 368 __FreeBSD_version 800054 adds memory barriers to 369 <machine/atomic.h>, new interfaces to ifnet to facilitate 370 multiple hardware transmit queues for cards that support 371 them, and a lock-less ring-buffer implementation to 372 enable drivers to more efficiently manage queueing of 373 packets. 374 37520081117: 376 A new version of ZFS (version 13) has been merged to -HEAD. 377 This version has zpool attribute "listsnapshots" off by 378 default, which means "zfs list" does not show snapshots, 379 and is the same as Solaris behavior. 380 38120081028: 382 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 383 38420081009: 385 The uhci, ohci, ehci and slhci USB Host controller drivers have 386 been put into separate modules. If you load the usb module 387 separately through loader.conf you will need to load the 388 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 389 controller add the following to loader.conf: 390 391 uhci_load="YES" 392 ehci_load="YES" 393 39420081009: 395 The ABI used by the PMC toolset has changed. Please keep 396 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 397 sync. 398 39920080820: 400 The TTY subsystem of the kernel has been replaced by a new 401 implementation, which provides better scalability and an 402 improved driver model. Most common drivers have been migrated to 403 the new TTY subsystem, while others have not. The following 404 drivers have not yet been ported to the new TTY layer: 405 406 PCI/ISA: 407 cy, digi, rc, rp, sio 408 409 USB: 410 ubser, ucycom 411 412 Line disciplines: 413 ng_h4, ng_tty, ppp, sl, snp 414 415 Adding these drivers to your kernel configuration file shall 416 cause compilation to fail. 417 41820080818: 419 ntpd has been upgraded to 4.2.4p5. 420 42120080801: 422 OpenSSH has been upgraded to 5.1p1. 423 424 For many years, FreeBSD's version of OpenSSH preferred DSA 425 over RSA for host and user authentication keys. With this 426 upgrade, we've switched to the vendor's default of RSA over 427 DSA. This may cause upgraded clients to warn about unknown 428 host keys even for previously known hosts. Users should 429 follow the usual procedure for verifying host keys before 430 accepting the RSA key. 431 432 This can be circumvented by setting the "HostKeyAlgorithms" 433 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 434 command line. 435 436 Please note that the sequence of keys offered for 437 authentication has been changed as well. You may want to 438 specify IdentityFile in a different order to revert this 439 behavior. 440 44120080713: 442 The sio(4) driver has been removed from the i386 and amd64 443 kernel configuration files. This means uart(4) is now the 444 default serial port driver on those platforms as well. 445 446 To prevent collisions with the sio(4) driver, the uart(4) driver 447 uses different names for its device nodes. This means the 448 onboard serial port will now most likely be called "ttyu0" 449 instead of "ttyd0". You may need to reconfigure applications to 450 use the new device names. 451 452 When using the serial port as a boot console, be sure to update 453 /boot/device.hints and /etc/ttys before booting the new kernel. 454 If you forget to do so, you can still manually specify the hints 455 at the loader prompt: 456 457 set hint.uart.0.at="isa" 458 set hint.uart.0.port="0x3F8" 459 set hint.uart.0.flags="0x10" 460 set hint.uart.0.irq="4" 461 boot -s 462 46320080609: 464 The gpt(8) utility has been removed. Use gpart(8) to partition 465 disks instead. 466 46720080603: 468 The version that Linuxulator emulates was changed from 2.4.2 469 to 2.6.16. If you experience any problems with Linux binaries 470 please try to set sysctl compat.linux.osrelease to 2.4.2 and 471 if it fixes the problem contact emulation mailing list. 472 47320080525: 474 ISDN4BSD (I4B) was removed from the src tree. You may need to 475 update a your kernel configuration and remove relevant entries. 476 47720080509: 478 I have checked in code to support multiple routing tables. 479 See the man pages setfib(1) and setfib(2). 480 This is a hopefully backwards compatible version, 481 but to make use of it you need to compile your kernel 482 with options ROUTETABLES=2 (or more up to 16). 483 48420080420: 485 The 802.11 wireless support was redone to enable multi-bss 486 operation on devices that are capable. The underlying device 487 is no longer used directly but instead wlanX devices are 488 cloned with ifconfig. This requires changes to rc.conf files. 489 For example, change: 490 ifconfig_ath0="WPA DHCP" 491 to 492 wlans_ath0=wlan0 493 ifconfig_wlan0="WPA DHCP" 494 see rc.conf(5) for more details. In addition, mergemaster of 495 /etc/rc.d is highly recommended. Simultaneous update of userland 496 and kernel wouldn't hurt either. 497 498 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 499 modules were merged into the base wlan module. All references 500 to these modules (e.g. in kernel config files) must be removed. 501 50220080408: 503 psm(4) has gained write(2) support in native operation level. 504 Arbitrary commands can be written to /dev/psm%d and status can 505 be read back from it. Therefore, an application is responsible 506 for status validation and error recovery. It is a no-op in 507 other operation levels. 508 50920080312: 510 Support for KSE threading has been removed from the kernel. To 511 run legacy applications linked against KSE libmap.conf may 512 be used. The following libmap.conf may be used to ensure 513 compatibility with any prior release: 514 515 libpthread.so.1 libthr.so.1 516 libpthread.so.2 libthr.so.2 517 libkse.so.3 libthr.so.3 518 51920080301: 520 The layout of struct vmspace has changed. This affects libkvm 521 and any executables that link against libkvm and use the 522 kvm_getprocs() function. In particular, but not exclusively, 523 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 524 The effects are minimal, but it's advisable to upgrade world 525 nonetheless. 526 52720080229: 528 The latest em driver no longer has support in it for the 529 82575 adapter, this is now moved to the igb driver. The 530 split was done to make new features that are incompatible 531 with older hardware easier to do. 532 53320080220: 534 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 535 likewise the kernel option is now GEOM_LINUX_LVM. 536 53720080211: 538 The default NFS mount mode has changed from UDP to TCP for 539 increased reliability. If you rely on (insecurely) NFS 540 mounting across a firewall you may need to update your 541 firewall rules. 542 54320080208: 544 Belatedly note the addition of m_collapse for compacting 545 mbuf chains. 546 54720080126: 548 The fts(3) structures have been changed to use adequate 549 integer types for their members and so to be able to cope 550 with huge file trees. The old fts(3) ABI is preserved 551 through symbol versioning in libc, so third-party binaries 552 using fts(3) should still work, although they will not take 553 advantage of the extended types. At the same time, some 554 third-party software might fail to build after this change 555 due to unportable assumptions made in its source code about 556 fts(3) structure members. Such software should be fixed 557 by its vendor or, in the worst case, in the ports tree. 558 FreeBSD_version 800015 marks this change for the unlikely 559 case that a portable fix is impossible. 560 56120080123: 562 To upgrade to -current after this date, you must be running 563 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 564 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 565 56620071128: 567 The ADAPTIVE_GIANT kernel option has been retired because its 568 functionality is the default now. 569 57020071118: 571 The AT keyboard emulation of sunkbd(4) has been turned on 572 by default. In order to make the special symbols of the Sun 573 keyboards driven by sunkbd(4) work under X these now have 574 to be configured the same way as Sun USB keyboards driven 575 by ukbd(4) (which also does AT keyboard emulation), f.e.: 576 577 Option "XkbLayout" "us" 578 Option "XkbRules" "xorg" 579 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 580 58120071024: 582 It has been decided that it is desirable to provide ABI 583 backwards compatibility to the FreeBSD 4/5/6 versions of the 584 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 585 broken with the introduction of PCI domain support (see the 586 20070930 entry). Unfortunately, this required the ABI of 587 PCIOCGETCONF to be broken again in order to be able to 588 provide backwards compatibility to the old version of that 589 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 590 again. As for prominent ports this affects neither pciutils 591 nor xorg-server this time, the hal port needs to be rebuilt 592 however. 593 59420071020: 595 The misnamed kthread_create() and friends have been renamed 596 to kproc_create() etc. Many of the callers already 597 used kproc_start().. 598 I will return kthread_create() and friends in a while 599 with implementations that actually create threads, not procs. 600 Renaming corresponds with version 800002. 601 60220071010: 603 RELENG_7 branched. 604 60520071009: 606 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 607 WITHOUT_LIBTHR are set. 608 60920070930: 610 The PCI code has been made aware of PCI domains. This means that 611 the location strings as used by pciconf(8) etc are now in the 612 following format: pci<domain>:<bus>:<device>[:<function>]. It 613 also means that consumers of <sys/pciio.h> potentially need to 614 be recompiled; this includes the hal and xorg-server ports. 615 61620070928: 617 The caching daemon (cached) was renamed to nscd. nscd.conf 618 configuration file should be used instead of cached.conf and 619 nscd_enable, nscd_pidfile and nscd_flags options should be used 620 instead of cached_enable, cached_pidfile and cached_flags in 621 rc.conf. 622 62320070921: 624 The getfacl(1) utility now prints owning user and group name 625 instead of owning uid and gid in the three line comment header. 626 This is the same behavior as getfacl(1) on Solaris and Linux. 627 62820070704: 629 The new IPsec code is now compiled in using the IPSEC option. The 630 IPSEC option now requires "device crypto" be defined in your kernel 631 configuration. The FAST_IPSEC kernel option is now deprecated. 632 63320070702: 634 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 635 note the changed syntax - keep state is now on by default. Also 636 note the fact that ftp-proxy(8) has been changed from bottom up and 637 has been moved from libexec to usr/sbin. Changes in the ALTQ 638 handling also affect users of IPFW's ALTQ capabilities. 639 64020070701: 641 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 642 only IPsec supported by FreeBSD. The new IPsec stack 643 supports both IPv4 and IPv6. The kernel option will change 644 after the code changes have settled in. For now the kernel 645 option IPSEC is deprecated and FAST_IPSEC is the only option, that 646 will change after some settling time. 647 64820070701: 649 The wicontrol(8) utility has been removed from the base system. wi(4) 650 cards should be configured using ifconfig(8), see the man page for more 651 information. 652 65320070612: 654 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 655 instead of the nve(4) driver. Please update your configuration 656 accordingly. 657 65820070612: 659 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 660 database if it is missing or older than the aliases file. If 661 desired, set the new rc.conf option sendmail_rebuild_aliases 662 to "YES" to restore that functionality. 663 66420070612: 665 The IPv4 multicast socket code has been considerably modified, and 666 moved to the file sys/netinet/in_mcast.c. Initial support for the 667 RFC 3678 Source-Specific Multicast Socket API has been added to 668 the IPv4 network stack. 669 670 Strict multicast and broadcast reception is now the default for 671 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 672 has now been removed. 673 674 The RFC 1724 hack for interface selection has been removed; the use 675 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 676 been added to replace it. Consumers such as routed will soon be 677 updated to reflect this. 678 679 These changes affect users who are running routed(8) or rdisc(8) 680 from the FreeBSD base system on point-to-point or unnumbered 681 interfaces. 682 68320070610: 684 The net80211 layer has changed significantly and all wireless 685 drivers that depend on it need to be recompiled. Further these 686 changes require that any program that interacts with the wireless 687 support in the kernel be recompiled; this includes: ifconfig, 688 wpa_supplicant, hostapd, and wlanstats. Users must also, for 689 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 690 if they use modules for wireless support. These modules implement 691 scanning support for station and ap modes, respectively. Failure 692 to load the appropriate module before marking a wireless interface 693 up will result in a message to the console and the device not 694 operating properly. 695 69620070610: 697 The pam_nologin(8) module ceases to provide an authentication 698 function and starts providing an account management function. 699 Consequent changes to /etc/pam.d should be brought in using 700 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 701 need manual editing as follows. Locate this line (or similar): 702 703 auth required pam_nologin.so no_warn 704 705 and change it according to this example: 706 707 account required pam_nologin.so no_warn 708 709 That is, the first word needs to be changed from "auth" to 710 "account". The new line can be moved to the account section 711 within the file for clarity. Not updating pam.conf(5) files 712 will result in nologin(5) ignored by the respective services. 713 71420070529: 715 The ether_ioctl() function has been synchronized with ioctl(2) 716 and ifnet.if_ioctl. Due to that, the size of one of its arguments 717 has changed on 64-bit architectures. All kernel modules using 718 ether_ioctl() need to be rebuilt on such architectures. 719 72020070516: 721 Improved INCLUDE_CONFIG_FILE support has been introduced to the 722 config(8) utility. In order to take advantage of this new 723 functionality, you are expected to recompile and install 724 src/usr.sbin/config. If you don't rebuild config(8), and your 725 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 726 build will be broken because of a missing "kernconfstring" 727 symbol. 728 72920070513: 730 Symbol versioning is enabled by default. To disable it, use 731 option WITHOUT_SYMVER. It is not advisable to attempt to 732 disable symbol versioning once it is enabled; your installworld 733 will break because a symbol version-less libc will get installed 734 before the install tools. As a result, the old install tools, 735 which previously had symbol dependencies to FBSD_1.0, will fail 736 because the freshly installed libc will not have them. 737 738 The default threading library (providing "libpthread") has been 739 changed to libthr. If you wish to have libkse as your default, 740 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 741 74220070423: 743 The ABI breakage in sendmail(8)'s libmilter has been repaired 744 so it is no longer necessary to recompile mail filters (aka, 745 milters). If you recompiled mail filters after the 20070408 746 note, it is not necessary to recompile them again. 747 74820070417: 749 The new trunk(4) driver has been renamed to lagg(4) as it better 750 reflects its purpose. ifconfig will need to be recompiled. 751 75220070408: 753 sendmail(8) has been updated to version 8.14.1. Mail filters 754 (aka, milters) compiled against the libmilter included in the 755 base operating system should be recompiled. 756 75720070302: 758 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 759 In order to use them one must agree to the respective LICENSE in 760 share/doc/legal and define legal.intel_<name>.license_ack=1 via 761 loader.conf(5) or kenv(1). Make sure to deinstall the now 762 deprecated modules from the respective firmware ports. 763 76420070228: 765 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 766 were removed from FreeBSD's libc. These originally came from INRIA 767 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 768 deprecated in previous releases. 769 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 770 replace it as a more portable (and re-entrant) API. 771 77220070224: 773 To support interrupt filtering a modification to the newbus API 774 has occurred, ABI was broken and __FreeBSD_version was bumped 775 to 700031. Please make sure that your kernel and modules are in 776 sync. For more info: 777 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 778 77920070224: 780 The IPv6 multicast forwarding code may now be loaded into GENERIC 781 kernels by loading the ip_mroute.ko module. This is built into the 782 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 783 set; see src.conf(5) for more information. 784 78520070214: 786 The output of netstat -r has changed. Without -n, we now only 787 print a "network name" without the prefix length if the network 788 address and mask exactly match a Class A/B/C network, and an entry 789 exists in the nsswitch "networks" map. 790 With -n, we print the full unabbreviated CIDR network prefix in 791 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 792 This change is in preparation for changes such as equal-cost 793 multipath, and to more generally assist operational deployment 794 of FreeBSD as a modern IPv4 router. 795 79620070210: 797 PIM has been turned on by default in the IPv4 multicast 798 routing code. The kernel option 'PIM' has now been removed. 799 PIM is now built by default if option 'MROUTING' is specified. 800 It may now be loaded into GENERIC kernels by loading the 801 ip_mroute.ko module. 802 80320070207: 804 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 805 has been removed. Its functionality may be achieved by explicitly 806 configuring gif(4) interfaces and using the 'phyint' keyword in 807 mrouted.conf. 808 XORP does not support source-routed IPv4 multicast tunnels nor the 809 integrated IPIP tunneling, therefore it is not affected by this 810 change. The __FreeBSD_version macro has been bumped to 700030. 811 81220061221: 813 Support for PCI Message Signalled Interrupts has been 814 re-enabled in the bge driver, only for those chips which are 815 believed to support it properly. If there are any problems, 816 MSI can be disabled completely by setting the 817 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 818 in the loader. 819 82020061214: 821 Support for PCI Message Signalled Interrupts has been 822 disabled again in the bge driver. Many revisions of the 823 hardware fail to support it properly. Support can be 824 re-enabled by removing the #define of BGE_DISABLE_MSI in 825 "src/sys/dev/bge/if_bge.c". 826 82720061214: 828 Support for PCI Message Signalled Interrupts has been added 829 to the bge driver. If there are any problems, MSI can be 830 disabled completely by setting the 'hw.pci.enable_msi' and 831 'hw.pci.enable_msix' tunables to 0 in the loader. 832 83320061205: 834 The removal of several facets of the experimental Threading 835 system from the kernel means that the proc and thread structures 836 have changed quite a bit. I suggest all kernel modules that might 837 reference these structures be recompiled.. Especially the 838 linux module. 839 84020061126: 841 Sound infrastructure has been updated with various fixes and 842 improvements. Most of the changes are pretty much transparent, 843 with exceptions of followings: 844 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 845 moved to their own dev sysctl nodes, for example: 846 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 847 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 848 own chardev in the form of "dsp%d.<function>%d", where <function> 849 is p = playback, r = record and v = virtual, respectively. Users 850 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 851 This does not affect those who are using "/dev/dsp". 852 85320061122: 854 geom(4)'s gmirror(8) class metadata structure has been 855 rev'd from v3 to v4. If you update across this point and 856 your metadata is converted for you, you will not be easily 857 able to downgrade since the /boot/kernel.old/geom_mirror.ko 858 kernel module will be unable to read the v4 metadata. You 859 can resolve this by doing from the loader(8) prompt: 860 861 set vfs.root.mountfrom="ufs:/dev/XXX" 862 863 where XXX is the root slice of one of the disks that composed 864 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 865 the array the same way you built it originally. 866 86720061122: 868 The following binaries have been disconnected from the build: 869 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 870 and mount_std. The functionality of these programs has been 871 moved into the mount program. For example, to mount a devfs 872 filesystem, instead of using mount_devfs, use: "mount -t devfs". 873 This does not affect entries in /etc/fstab, since entries in 874 /etc/fstab are always processed with "mount -t fstype". 875 87620061113: 877 Support for PCI Message Signalled Interrupts on i386 and amd64 878 has been added to the kernel and various drivers will soon be 879 updated to use MSI when it is available. If there are any problems, 880 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 881 and 'hw.pci.enable_msix' tunables to 0 in the loader. 882 88320061110: 884 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 885 The lockmgr object layout has been changed as a result of having 886 a lock_object embedded in it. As a consequence all file system 887 kernel modules must be re-compiled. The mutex profiling man page 888 has not yet been updated to reflect this change. 889 89020061026: 891 KSE in the kernel has now been made optional and turned on by 892 default. Use 'nooption KSE' in your kernel config to turn it 893 off. All kernel modules *must* be recompiled after this change. 894 There-after, modules from a KSE kernel should be compatible with 895 modules from a NOKSE kernel due to the temporary padding fields 896 added to 'struct proc'. 897 89820060929: 899 mrouted and its utilities have been removed from the base system. 900 90120060927: 902 Some ioctl(2) command codes have changed. Full backward ABI 903 compatibility is provided if the "options COMPAT_FREEBSD6" is 904 present in the kernel configuration file. Make sure to add 905 this option to your kernel config file, or recompile X.Org 906 and the rest of ports; otherwise they may refuse to work. 907 90820060924: 909 tcpslice has been removed from the base system. 910 91120060913: 912 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 913 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 914 systat needs to be rebuilt. 915 91620060903: 917 libpcap updated to v0.9.4 and tcpdump to v3.9.4 918 91920060816: 920 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 921 for IPFIREWALL_FORWARD is now as it was before when it was first 922 committed and for years after. The behaviour is now ON. 923 92420060725: 925 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 926 Now it can decrypt files created from different architectures. 927 Unfortunately, it is no longer able to decrypt a cipher text 928 generated with an older version on 64 bit architectures. 929 If you have such a file, you need old utility to decrypt it. 930 93120060709: 932 The interface version of the i4b kernel part has changed. So 933 after updating the kernel sources and compiling a new kernel, 934 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 935 be rebuilt, and vice versa. 936 93720060627: 938 The XBOX kernel now defaults to the nfe(4) driver instead of 939 the nve(4) driver. Please update your configuration 940 accordingly. 941 94220060514: 943 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 944 PCnet family of NICs has been removed. The new le(4) driver serves 945 as an equivalent but cross-platform replacement with the pcn(4) 946 driver still providing performance-optimized support for the subset 947 of AMD Am79C971 PCnet-FAST and greater chips as before. 948 94920060511: 950 The machdep.* sysctls and the adjkerntz utility have been 951 modified a bit. The new adjkerntz utility uses the new 952 sysctl names and sysctlbyname() calls, so it may be impossible 953 to run an old /sbin/adjkerntz utility in single-user mode 954 with a new kernel. Replace the `adjkerntz -i' step before 955 `make installworld' with: 956 957 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 958 959 and proceed as usual with the rest of the installworld-stage 960 steps. Otherwise, you risk installing binaries with their 961 timestamp set several hours in the future, especially if 962 you are running with local time set to GMT+X hours. 963 96420060412: 965 The ip6fw utility has been removed. The behavior provided by 966 ip6fw has been in ipfw2 for a good while and the rc.d scripts 967 have been updated to deal with it. There are some rules that 968 might not migrate cleanly. Use rc.firewall6 as a template to 969 rewrite rules. 970 97120060428: 972 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 973 attachments have been removed. Make sure to configure scc(4) 974 on sparc64. Note also that by default puc(4) will use uart(4) 975 and not sio(4) for serial ports because interrupt handling has 976 been optimized for multi-port serial cards and only uart(4) 977 implements the interface to support it. 978 97920060330: 980 The scc(4) driver replaces puc(4) for Serial Communications 981 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 982 Z8530. On sparc64, it is advised to add scc(4) to the kernel 983 configuration to make sure that the serial ports remain 984 functional. 985 98620060317: 987 Most world/kernel related NO_* build options changed names. 988 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 989 after FreeBSD ports) and should be set in /etc/src.conf 990 (the src.conf(5) manpage is provided). Full backwards 991 compatibility is maintained for the time being though it's 992 highly recommended to start moving old options out of the 993 system-wide /etc/make.conf file into the new /etc/src.conf 994 while also properly renaming them. More conversions will 995 likely follow. Posting to current@: 996 997 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 998 99920060305: 1000 The NETSMBCRYPTO kernel option has been retired because its 1001 functionality is always included in NETSMB and smbfs.ko now. 1002 100320060303: 1004 The TDFX_LINUX kernel option was retired and replaced by the 1005 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1006 kernel module. Loading it alone should suffice to get 3dfx support 1007 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1008 its dependencies. 1009 101020060204: 1011 The 'audit' group was added to support the new auditing functionality 1012 in the base system. Be sure to follow the directions for updating, 1013 including the requirement to run mergemaster -p. 1014 101520060201: 1016 The kernel ABI to file system modules was changed on i386. 1017 Please make sure that your kernel and modules are in sync. 1018 101920060118: 1020 This actually occured some time ago, but installing the kernel 1021 now also installs a bunch of symbol files for the kernel modules. 1022 This increases the size of /boot/kernel to about 67Mbytes. You 1023 will need twice this if you will eventually back this up to kernel.old 1024 on your next install. 1025 If you have a shortage of room in your root partition, you should add 1026 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1027 to your /etc/make.conf. 1028 102920060113: 1030 libc's malloc implementation has been replaced. This change has the 1031 potential to uncover application bugs that previously went unnoticed. 1032 See the malloc(3) manual page for more details. 1033 103420060112: 1035 The generic netgraph(4) cookie has been changed. If you upgrade 1036 kernel passing this point, you also need to upgrade userland 1037 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1038 103920060106: 1040 si(4)'s device files now contain the unit number. 1041 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1042 104320060106: 1044 The kernel ABI was mostly destroyed due to a change in the size 1045 of struct lock_object which is nested in other structures such 1046 as mutexes which are nested in all sorts of other structures. 1047 Make sure your kernel and modules are in sync. 1048 104920051231: 1050 The page coloring algorithm in the VM subsystem was converted 1051 from tuning with kernel options to autotuning. Please remove 1052 any PQ_* option except PQ_NOOPT from your kernel config. 1053 105420051211: 1055 The net80211-related tools in the tools/tools/ath directory 1056 have been moved to tools/tools/net80211 and renamed with a 1057 "wlan" prefix. Scripts that use them should be adjusted 1058 accordingly. 1059 106020051202: 1061 Scripts in the local_startup directories (as defined in 1062 /etc/defaults/rc.conf) that have the new rc.d semantics will 1063 now be run as part of the base system rcorder. If there are 1064 errors or problems with one of these local scripts, it could 1065 cause boot problems. If you encounter such problems, boot in 1066 single user mode, remove that script from the */rc.d directory. 1067 Please report the problem to the port's maintainer, and the 1068 freebsd-ports@freebsd.org mailing list. 1069 107020051129: 1071 The nodev mount option was deprecated in RELENG_6 (where it 1072 was a no-op), and is now unsupported. If you have nodev or dev listed 1073 in /etc/fstab, remove it, otherwise it will result in a mount error. 1074 107520051129: 1076 ABI between ipfw(4) and ipfw(8) has been changed. You need 1077 to rebuild ipfw(8) when rebuilding kernel. 1078 107920051108: 1080 rp(4)'s device files now contain the unit number. 1081 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1082 108320051029: 1084 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1085 Its /etc/rc.conf.d configuration file has been `ppp' from 1086 the beginning, and hence there is no need to touch it. 1087 108820051014: 1089 Now most modules get their build-time options from the kernel 1090 configuration file. A few modules still have fixed options 1091 due to their non-conformant implementation, but they will be 1092 corrected eventually. You may need to review the options of 1093 the modules in use, explicitly specify the non-default options 1094 in the kernel configuration file, and rebuild the kernel and 1095 modules afterwards. 1096 109720051001: 1098 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1099 to turn polling(4) on your interfaces. 1100 110120050927: 1102 The old bridge(4) implementation was retired. The new 1103 if_bridge(4) serves as a full functional replacement. 1104 110520050722: 1106 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1107 to conform to POSIX-2001. This change broke an ABI 1108 compatibility on 64 bit architecture. You have to recompile 1109 userland programs that use getaddrinfo(3) on 64 bit 1110 architecture. 1111 111220050711: 1113 RELENG_6 branched here. 1114 111520050629: 1116 The pccard_ifconfig rc.conf variable has been removed and a new 1117 variable, ifconfig_DEFAULT has been introduced. Unlike 1118 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1119 do not have ifconfig_ifn entries rather than just those in 1120 removable_interfaces. 1121 112220050616: 1123 Some previous versions of PAM have permitted the use of 1124 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1125 to third party PAM modules in /usr/local/lib. A change has been 1126 made to require the use of absolute paths in order to avoid 1127 ambiguity and dependence on library path configuration, which may 1128 affect existing configurations. 1129 113020050610: 1131 Major changes to network interface API. All drivers must be 1132 recompiled. Drivers not in the base system will need to be 1133 updated to the new APIs. 1134 113520050609: 1136 Changes were made to kinfo_proc in sys/user.h. Please recompile 1137 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1138 will not behave correctly. 1139 1140 The API and ABI for hwpmc(4) have changed with the addition 1141 of sampling support. Please recompile lib/libpmc(3) and 1142 usr.sbin/{pmcstat,pmccontrol}. 1143 114420050606: 1145 The OpenBSD dhclient was imported in place of the ISC dhclient 1146 and the network interface configuration scripts were updated 1147 accordingly. If you use DHCP to configure your interfaces, you 1148 must now run devd. Also, DNS updating was lost so you will need 1149 to find a workaround if you use this feature. 1150 1151 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1152 sure to run mergemaster -p (like you are supposed to do every time 1153 anyway). 1154 115520050605: 1156 if_bridge was added to the tree. This has changed struct ifnet. 1157 Please recompile userland and all network related modules. 1158 115920050603: 1160 The n_net of a struct netent was changed to an uint32_t, and 1161 1st argument of getnetbyaddr() was changed to an uint32_t, to 1162 conform to POSIX-2001. These changes broke an ABI 1163 compatibility on 64 bit architecture. With these changes, 1164 shlib major of libpcap was bumped. You have to recompile 1165 userland programs that use getnetbyaddr(3), getnetbyname(3), 1166 getnetent(3) and/or libpcap on 64 bit architecture. 1167 116820050528: 1169 Kernel parsing of extra options on '#!' first lines of shell 1170 scripts has changed. Lines with multiple options likely will 1171 fail after this date. For full details, please see 1172 http://people.freebsd.org/~gad/Updating-20050528.txt 1173 117420050503: 1175 The packet filter (pf) code has been updated to OpenBSD 3.7 1176 Please note the changed anchor syntax and the fact that 1177 authpf(8) now needs a mounted fdescfs(5) to function. 1178 117920050415: 1180 The NO_MIXED_MODE kernel option has been removed from the i386 1181 amd64 platforms as its use has been superceded by the new local 1182 APIC timer code. Any kernel config files containing this option 1183 should be updated. 1184 118520050227: 1186 The on-disk format of LC_CTYPE files was changed to be machine 1187 independent. Please make sure NOT to use NO_CLEAN buildworld 1188 when crossing this point. Crossing this point also requires 1189 recompile or reinstall of all locale depended packages. 1190 119120050225: 1192 The ifi_epoch member of struct if_data has been changed to 1193 contain the uptime at which the interface was created or the 1194 statistics zeroed rather then the wall clock time because 1195 wallclock time may go backwards. This should have no impact 1196 unless an snmp implementation is using this value (I know of 1197 none at this point.) 1198 119920050224: 1200 The acpi_perf and acpi_throttle drivers are now part of the 1201 acpi(4) main module. They are no longer built separately. 1202 120320050223: 1204 The layout of struct image_params has changed. You have to 1205 recompile all compatibility modules (linux, svr4, etc) for use 1206 with the new kernel. 1207 120820050223: 1209 The p4tcc driver has been merged into cpufreq(4). This makes 1210 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1211 compile in "device cpufreq" to restore this functionality. 1212 121320050220: 1214 The responsibility of recomputing the file system summary of 1215 a SoftUpdates-enabled dirty volume has been transferred to the 1216 background fsck. A rebuild of fsck(8) utility is recommended 1217 if you have updated the kernel. 1218 1219 To get the old behavior (recompute file system summary at mount 1220 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1221 mounting the new volume. 1222 122320050206: 1224 The cpufreq import is complete. As part of this, the sysctls for 1225 acpi(4) throttling have been removed. The power_profile script 1226 has been updated, so you can use performance/economy_cpu_freq in 1227 rc.conf(5) to set AC on/offline cpu frequencies. 1228 122920050206: 1230 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1231 requires recompiling libnetgraph and userland netgraph utilities. 1232 123320050114: 1234 Support for abbreviated forms of a number of ipfw options is 1235 now deprecated. Warnings are printed to stderr indicating the 1236 correct full form when a match occurs. Some abbreviations may 1237 be supported at a later date based on user feedback. To be 1238 considered for support, abbreviations must be in use prior to 1239 this commit and unlikely to be confused with current key words. 1240 124120041221: 1242 By a popular demand, a lot of NOFOO options were renamed 1243 to NO_FOO (see bsd.compat.mk for a full list). The old 1244 spellings are still supported, but will cause annoying 1245 warnings on stderr. Make sure you upgrade properly (see 1246 the COMMON ITEMS: section later in this file). 1247 124820041219: 1249 Auto-loading of ancillary wlan modules such as wlan_wep has 1250 been temporarily disabled; you need to statically configure 1251 the modules you need into your kernel or explicitly load them 1252 prior to use. Specifically, if you intend to use WEP encryption 1253 with an 802.11 device load/configure wlan_wep; if you want to 1254 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1255 and wlan_xauth as required. 1256 125720041213: 1258 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1259 (``enable lqr''), older versions would revert to LCP ECHO mode on 1260 negotiation failure. Now, ``enable echo'' is required for this 1261 behaviour. The ppp version number has been bumped to 3.4.2 to 1262 reflect the change. 1263 126420041201: 1265 The wlan support has been updated to split the crypto support 1266 into separate modules. For static WEP you must configure the 1267 wlan_wep module in your system or build and install the module 1268 in place where it can be loaded (the kernel will auto-load 1269 the module when a wep key is configured). 1270 127120041201: 1272 The ath driver has been updated to split the tx rate control 1273 algorithm into a separate module. You need to include either 1274 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1275 127620041116: 1277 Support for systems with an 80386 CPU has been removed. Please 1278 use FreeBSD 5.x or earlier on systems with an 80386. 1279 128020041110: 1281 We have had a hack which would mount the root filesystem 1282 R/W if the device were named 'md*'. As part of the vnode 1283 work I'm doing I have had to remove this hack. People 1284 building systems which use preloaded MD root filesystems 1285 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1286 their /etc/rc scripts. 1287 128820041104: 1289 FreeBSD 5.3 shipped here. 1290 129120041102: 1292 The size of struct tcpcb has changed again due to the removal 1293 of RFC1644 T/TCP. You have to recompile userland programs that 1294 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1295 129620041022: 1297 The size of struct tcpcb has changed. You have to recompile 1298 userland programs that read kmem for tcp sockets directly 1299 (netstat, sockstat, etc.) 1300 130120041016: 1302 RELENG_5 branched here. For older entries, please see updating 1303 in the RELENG_5 branch. 1304 1305COMMON ITEMS: 1306 1307 General Notes 1308 ------------- 1309 Avoid using make -j when upgrading. From time to time in the 1310 past there have been problems using -j with buildworld and/or 1311 installworld. This is especially true when upgrading between 1312 "distant" versions (eg one that cross a major release boundary 1313 or several minor releases, or when several months have passed 1314 on the -current branch). 1315 1316 Sometimes, obscure build problems are the result of environment 1317 poisoning. This can happen because the make utility reads its 1318 environment when searching for values for global variables. 1319 To run your build attempts in an "environmental clean room", 1320 prefix all make commands with 'env -i '. See the env(1) manual 1321 page for more details. 1322 1323 When upgrading from one major version to another it is generally 1324 best to upgrade to the latest code in the currently installed branch 1325 first, then do an upgrade to the new branch. This is the best-tested 1326 upgrade path, and has the highest probability of being successful. 1327 Please try this approach before reporting problems with a major 1328 version upgrade. 1329 1330 To build a kernel 1331 ----------------- 1332 If you are updating from a prior version of FreeBSD (even one just 1333 a few days old), you should follow this procedure. It is the most 1334 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1335 1336 make kernel-toolchain 1337 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1338 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1339 1340 To test a kernel once 1341 --------------------- 1342 If you just want to boot a kernel once (because you are not sure 1343 if it works, or if you want to boot a known bad kernel to provide 1344 debugging information) run 1345 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1346 nextboot -k testkernel 1347 1348 To just build a kernel when you know that it won't mess you up 1349 -------------------------------------------------------------- 1350 This assumes you are already running a 5.X system. Replace 1351 ${arch} with the architecture of your machine (e.g. "i386", 1352 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1353 1354 cd src/sys/${arch}/conf 1355 config KERNEL_NAME_HERE 1356 cd ../compile/KERNEL_NAME_HERE 1357 make depend 1358 make 1359 make install 1360 1361 If this fails, go to the "To build a kernel" section. 1362 1363 To rebuild everything and install it on the current system. 1364 ----------------------------------------------------------- 1365 # Note: sometimes if you are running current you gotta do more than 1366 # is listed here if you are upgrading from a really old current. 1367 1368 <make sure you have good level 0 dumps> 1369 make buildworld 1370 make kernel KERNCONF=YOUR_KERNEL_HERE 1371 [1] 1372 <reboot in single user> [3] 1373 mergemaster -p [5] 1374 make installworld 1375 make delete-old 1376 mergemaster [4] 1377 <reboot> 1378 1379 1380 To cross-install current onto a separate partition 1381 -------------------------------------------------- 1382 # In this approach we use a separate partition to hold 1383 # current's root, 'usr', and 'var' directories. A partition 1384 # holding "/", "/usr" and "/var" should be about 2GB in 1385 # size. 1386 1387 <make sure you have good level 0 dumps> 1388 <boot into -stable> 1389 make buildworld 1390 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1391 <maybe newfs current's root partition> 1392 <mount current's root partition on directory ${CURRENT_ROOT}> 1393 make installworld DESTDIR=${CURRENT_ROOT} 1394 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1395 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1396 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1397 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1398 <reboot into current> 1399 <do a "native" rebuild/install as described in the previous section> 1400 <maybe install compatibility libraries from ports/misc/compat*> 1401 <reboot> 1402 1403 1404 To upgrade in-place from 5.x-stable to current 1405 ---------------------------------------------- 1406 <make sure you have good level 0 dumps> 1407 make buildworld [9] 1408 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1409 [1] 1410 <reboot in single user> [3] 1411 mergemaster -p [5] 1412 make installworld 1413 make delete-old 1414 mergemaster -i [4] 1415 <reboot> 1416 1417 Make sure that you've read the UPDATING file to understand the 1418 tweaks to various things you need. At this point in the life 1419 cycle of current, things change often and you are on your own 1420 to cope. The defaults can also change, so please read ALL of 1421 the UPDATING entries. 1422 1423 Also, if you are tracking -current, you must be subscribed to 1424 freebsd-current@freebsd.org. Make sure that before you update 1425 your sources that you have read and understood all the recent 1426 messages there. If in doubt, please track -stable which has 1427 much fewer pitfalls. 1428 1429 [1] If you have third party modules, such as vmware, you 1430 should disable them at this point so they don't crash your 1431 system on reboot. 1432 1433 [3] From the bootblocks, boot -s, and then do 1434 fsck -p 1435 mount -u / 1436 mount -a 1437 cd src 1438 adjkerntz -i # if CMOS is wall time 1439 Also, when doing a major release upgrade, it is required that 1440 you boot into single user mode to do the installworld. 1441 1442 [4] Note: This step is non-optional. Failure to do this step 1443 can result in a significant reduction in the functionality of the 1444 system. Attempting to do it by hand is not recommended and those 1445 that pursue this avenue should read this file carefully, as well 1446 as the archives of freebsd-current and freebsd-hackers mailing lists 1447 for potential gotchas. 1448 1449 [5] Usually this step is a noop. However, from time to time 1450 you may need to do this if you get unknown user in the following 1451 step. It never hurts to do it all the time. You may need to 1452 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1453 install) after the buildworld before this step if you last updated 1454 from current before 20020224 or from -stable before 20020408. 1455 1456 [8] In order to have a kernel that can run the 4.x binaries 1457 needed to do an installworld, you must include the COMPAT_FREEBSD4 1458 option in your kernel. Failure to do so may leave you with a system 1459 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1460 is required to run the 5.x binaries on more recent kernels. 1461 1462 Make sure that you merge any new devices from GENERIC since the 1463 last time you updated your kernel config file. 1464 1465 [9] When checking out sources, you must include the -P flag to have 1466 cvs prune empty directories. 1467 1468 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1469 "?=" instead of the "=" assignment operator, so that buildworld can 1470 override the CPUTYPE if it needs to. 1471 1472 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1473 not on the command line, or in /etc/make.conf. buildworld will 1474 warn if it is improperly defined. 1475FORMAT: 1476 1477This file contains a list, in reverse chronological order, of major 1478breakages in tracking -current. Not all things will be listed here, 1479and it only starts on October 16, 2004. Updating files can found in 1480previous releases if your system is older than this. 1481 1482Copyright information: 1483 1484Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1485 1486Redistribution, publication, translation and use, with or without 1487modification, in full or in part, in any form or format of this 1488document are permitted without further permission from the author. 1489 1490THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1491IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1492WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1493DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1494INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1495(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1496SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1497HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1498STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1499IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1500POSSIBILITY OF SUCH DAMAGE. 1501 1502If you find this document useful, and you want to, you may buy the 1503author a beer. 1504 1505Contact Warner Losh if you have any questions about your use of 1506this document. 1507 1508$FreeBSD: head/UPDATING 191672 2009-04-29 19:19:13Z bms $ 1509