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 2520090602: 26 window(1) has been removed from the base system. It can now be 27 installed from ports. The port is called misc/window. 28 2920090601: 30 The way we are storing and accessing `routing table' entries 31 has changed. Programs reading the FIB, like netstat, need to 32 be re-compiled. 33 3420090601: 35 A new netisr implementation has been added for FreeBSD 8. Network 36 file system modules, such as igmp, ipdivert, and others, should be 37 rebuilt. 38 Bump __FreeBSD_version to 800096. 39 4020090531: 41 For those who use ipfw and especially pf, those two firewalls 42 are now started BEFORE the network is initialized (i.e., before 43 rc.d/netif). Please review your rules to make sure that your 44 interfaces will be properly described. 45 4620090530: 47 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose 48 is no more valid. 49 5020090530: 51 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 52 Bump __FreeBSD_version to 800094. 53 5420090529: 55 Add mnt_xflag field to 'struct mount'. File system modules 56 need to be rebuilt. 57 Bump __FreeBSD_version to 800093. 58 5920090528: 60 The compiling option ADAPTIVE_SX has been retired while it has been 61 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 62 The KPI for sx_init_flags() changes as accepting flags: 63 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag 64 has been introduced in order to handle the reversed logic. 65 Bump __FreeBSD_version to 800092. 66 6720090527: 68 Add support for hierarchical jails. Remove global securelevel. 69 Bump __FreeBSD_version to 800091. 70 7120090523: 72 The layout of struct vnet_net has changed, therefore modules 73 need to be rebuilt. 74 Bump __FreeBSD_version to 800090. 75 7620090523: 77 The newly imported zic(8) produces a new format in the 78 output. Please run tzsetup(8) to install the newly created 79 data to /etc/localtime. 80 8120090520: 82 The sysctl tree for the usb stack has renamed from hw.usb2.* to 83 hw.usb.* and is now consistent again with previous releases. 84 8520090520: 86 802.11 monitor mode support was revised and driver api's 87 were changed. Drivers dependent on net80211 now support 88 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No 89 user-visible data structures were changed but applications 90 that use DLT_IEEE802_11 may require changes. 91 Bump __FreeBSD_version to 800088. 92 9320090430: 94 The layout of the following structs has changed: sysctl_oid, 95 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 96 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 97 panics may be experienced. World rebuild is required for 98 correctly checking networking state from userland. 99 Bump __FreeBSD_version to 800085. 100 10120090429: 102 MLDv2 and Source-Specific Multicast (SSM) have been merged 103 to the IPv6 stack. VIMAGE hooks are in but not yet used. 104 The implementation of SSM within FreeBSD's IPv6 stack closely 105 follows the IPv4 implementation. 106 107 For kernel developers: 108 109 * The most important changes are that the ip6_output() and 110 ip6_input() paths no longer take the IN6_MULTI_LOCK, 111 and this lock has been downgraded to a non-recursive mutex. 112 113 * As with the changes to the IPv4 stack to support SSM, filtering 114 of inbound multicast traffic must now be performed by transport 115 protocols within the IPv6 stack. This does not apply to TCP and 116 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 117 118 * The KPIs used by IPv6 multicast are similar to those used by 119 the IPv4 stack, with the following differences: 120 * im6o_mc_filter() is analogous to imo_multicast_filter(). 121 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 122 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 123 * IN6_LOOKUP_MULTI() has been deprecated and removed. 124 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 125 for MLDv1 have an additional 'timer' argument which is used to 126 jitter the initial membership report for the solicited-node 127 multicast membership on-link. 128 * This is not strictly needed for MLDv2, which already jitters 129 its report transmissions. However, the 'timer' argument is 130 preserved in case MLDv1 is active on the interface. 131 132 * The KAME linked-list based IPv6 membership implementation has 133 been refactored to use a vector similar to that used by the IPv4 134 stack. 135 Code which maintains a list of its own multicast memberships 136 internally, e.g. carp, has been updated to reflect the new 137 semantics. 138 139 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 140 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 141 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 142 implementation constraint which needs to be addressed in HEAD. 143 144 For application developers: 145 146 * The changes are broadly similar to those made for the IPv4 147 stack. 148 149 * The use of IPv4 and IPv6 multicast socket options on the same 150 socket, using mapped addresses, HAS NOT been tested or supported. 151 152 * There are a number of issues with the implementation of various 153 IPv6 multicast APIs which need to be resolved in the API surface 154 before the implementation is fully compatible with KAME userland 155 use, and these are mostly to do with interface index treatment. 156 157 * The literature available discusses the use of either the delta / ASM 158 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 159 using setsourcefilter(3)/getsourcefilter(3). For more information 160 please refer to RFC 3768, 'Socket Interface Extensions for 161 Multicast Source Filters'. 162 163 * Applications which use the published RFC 3678 APIs should be fine. 164 165 For systems administrators: 166 167 * The mtest(8) utility has been refactored to support IPv6, in 168 addition to IPv4. Interface addresses are no longer accepted 169 as arguments, their names must be used instead. The utility 170 will map the interface name to its first IPv4 address as 171 returned by getifaddrs(3). 172 173 * The ifmcstat(8) utility has also been updated to print the MLDv2 174 endpoint state and source filter lists via sysctl(3). 175 176 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 177 loopback of IPv6 multicast datagrams by default; it defaults to 1 178 to preserve the existing behaviour. Disabling multicast loopback is 179 recommended for optimal system performance. 180 181 * The IPv6 MROUTING code has been changed to examine this sysctl 182 instead of attempting to perform a group lookup before looping 183 back forwarded datagrams. 184 185 Bump __FreeBSD_version to 800084. 186 18720090422: 188 Implement low-level Bluetooth HCI API. 189 Bump __FreeBSD_version to 800083. 190 19120090419: 192 The layout of struct malloc_type, used by modules to register new 193 memory allocation types, has changed. Most modules will need to 194 be rebuilt or panics may be experienced. 195 Bump __FreeBSD_version to 800081. 196 19720090415: 198 Anticipate overflowing inp_flags - add inp_flags2. 199 This changes most offsets in inpcb, so checking v4 connection 200 state will require a world rebuild. 201 Bump __FreeBSD_version to 800080. 202 20320090415: 204 Add an llentry to struct route and struct route_in6. Modules 205 embedding a struct route will need to be recompiled. 206 Bump __FreeBSD_version to 800079. 207 20820090414: 209 The size of rt_metrics_lite and by extension rtentry has changed. 210 Networking administration apps will need to be recompiled. 211 The route command now supports show as an alias for get, weighting 212 of routes, sticky and nostick flags to alter the behavior of stateful 213 load balancing. 214 Bump __FreeBSD_version to 800078. 215 21620090408: 217 Do not use Giant for kbdmux(4) locking. This is wrong and 218 apparently causing more problems than it solves. This will 219 re-open the issue where interrupt handlers may race with 220 kbdmux(4) in polling mode. Typical symptoms include (but 221 not limited to) duplicated and/or missing characters when 222 low level console functions (such as gets) are used while 223 interrupts are enabled (for example geli password prompt, 224 mountroot prompt etc.). Disabling kbdmux(4) may help. 225 22620090407: 227 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 228 kernel modules referencing any of the above need to be recompiled. 229 Bump __FreeBSD_version to 800075. 230 23120090320: 232 GEOM_PART has become the default partition slicer for storage devices, 233 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 234 introduces some changes: 235 236 MSDOS/EBR: the devices created from MSDOS extended partition entries 237 (EBR) can be named differently than with GEOM_MBR and are now symlinks 238 to devices with offset-based names. fstabs may need to be modified. 239 240 BSD: the "geometry does not match label" warning is harmless in most 241 cases but it points to problems in file system misalignment with 242 disk geometry. The "c" partition is now implicit, covers the whole 243 top-level drive and cannot be (mis)used by users. 244 245 General: Kernel dumps are now not allowed to be written to devices 246 whose partition types indicate they are meant to be used for file 247 systems (or, in case of MSDOS partitions, as something else than 248 the "386BSD" type). 249 250 Most of these changes date approximately from 200812. 251 25220090319: 253 The uscanner(4) driver has been removed from the kernel. This follows 254 Linux removing theirs in 2.6 and making libusb the default interface 255 (supported by sane). 256 25720090319: 258 The multicast forwarding code has been cleaned up. netstat(1) 259 only relies on KVM now for printing bandwidth upcall meters. 260 The IPv4 and IPv6 modules are split into ip_mroute_mod and 261 ip6_mroute_mod respectively. The config(5) options for statically 262 compiling this code remain the same, i.e. 'options MROUTING'. 263 26420090315: 265 Support for the IFF_NEEDSGIANT network interface flag has been 266 removed, which means that non-MPSAFE network device drivers are no 267 longer supported. In particular, if_ar, if_sr, and network device 268 drivers from the old (legacy) USB stack can no longer be built or 269 used. 270 27120090313: 272 POSIX.1 Native Language Support (NLS) has been enabled in libc and 273 a bunch of new language catalog files have also been added. 274 This means that some common libc messages are now localized and 275 they depend on the LC_MESSAGES environmental variable. 276 27720090313: 278 The k8temp(4) driver has been renamed to amdtemp(4) since 279 support for K10 and K11 CPU families was added. 280 28120090309: 282 IGMPv3 and Source-Specific Multicast (SSM) have been merged 283 to the IPv4 stack. VIMAGE hooks are in but not yet used. 284 285 For kernel developers, the most important changes are that the 286 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 287 and this lock has been downgraded to a non-recursive mutex. 288 289 Transport protocols (UDP, Raw IP) are now responsible for filtering 290 inbound multicast traffic according to group membership and source 291 filters. The imo_multicast_filter() KPI exists for this purpose. 292 Transports which do not use multicast (SCTP, TCP) already reject 293 multicast by default. Forwarding and receive performance may improve 294 as a mutex acquisition is no longer needed in the ip_input() 295 low-level input path. in_addmulti() and in_delmulti() are shimmed 296 to new KPIs which exist to support SSM in-kernel. 297 298 For application developers, it is recommended that loopback of 299 multicast datagrams be disabled for best performance, as this 300 will still cause the lock to be taken for each looped-back 301 datagram transmission. The net.inet.ip.mcast.loop sysctl may 302 be tuned to 0 to disable loopback by default; it defaults to 1 303 to preserve the existing behaviour. 304 305 For systems administrators, to obtain best performance with 306 multicast reception and multiple groups, it is always recommended 307 that a card with a suitably precise hash filter is used. Hash 308 collisions will still result in the lock being taken within the 309 transport protocol input path to check group membership. 310 311 If deploying FreeBSD in an environment with IGMP snooping switches, 312 it is recommended that the net.inet.igmp.sendlocal sysctl remain 313 enabled; this forces 224.0.0.0/24 group membership to be announced 314 via IGMP. 315 316 The size of 'struct igmpstat' has changed; netstat needs to be 317 recompiled to reflect this. 318 Bump __FreeBSD_version to 800070. 319 32020090309: 321 libusb20.so.1 is now installed as libusb.so.1 and the ports system 322 updated to use it. This requires a buildworld/installworld in order to 323 update the library and dependencies (usbconfig, etc). Its advisable to 324 rebuild all ports which uses libusb. More specific directions are given 325 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 326 libusb are no longer required and can be removed. 327 32820090302: 329 A workaround is committed to allow the creation of System V shared 330 memory segment of size > 2 GB on the 64-bit architectures. 331 Due to a limitation of the existing ABI, the shm_segsz member 332 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 333 wrong for large segments. Note that limits must be explicitly 334 raised to allow such segments to be created. 335 33620090301: 337 The layout of struct ifnet has changed, requiring a rebuild of all 338 network device driver modules. 339 34020090227: 341 The /dev handling for the new USB stack has changed, a 342 buildworld/installworld is required for libusb20. 343 34420090223: 345 The new USB2 stack has now been permanently moved in and all kernel and 346 module names reverted to their previous values (eg, usb, ehci, ohci, 347 ums, ...). The old usb stack can be compiled in by prefixing the name 348 with the letter 'o', the old usb modules have been removed. 349 Updating entry 20090216 for xorg and 20090215 for libmap may still 350 apply. 351 35220090217: 353 The rc.conf(5) option if_up_delay has been renamed to 354 defaultroute_delay to better reflect its purpose. If you have 355 customized this setting in /etc/rc.conf you need to update it to 356 use the new name. 357 35820090216: 359 xorg 7.4 wants to configure its input devices via hald which does not 360 yet work with USB2. If the keyboard/mouse does not work in xorg then 361 add 362 Option "AllowEmptyInput" "off" 363 to your ServerLayout section. This will cause X to use the configured 364 kbd and mouse sections from your xorg.conf. 365 36620090215: 367 The GENERIC kernels for all architectures now default to the new USB2 368 stack. No kernel config options or code have been removed so if a 369 problem arises please report it and optionally revert to the old USB 370 stack. If you are loading USB kernel modules or have a custom kernel 371 that includes GENERIC then ensure that usb names are also changed over, 372 eg uftdi -> usb2_serial_ftdi. 373 374 Older programs linked against the ports libusb 0.1 need to be 375 redirected to the new stack's libusb20. /etc/libmap.conf can 376 be used for this: 377 # Map old usb library to new one for usb2 stack 378 libusb-0.1.so.8 libusb20.so.1 379 38020090203: 381 The ichsmb(4) driver has been changed to require SMBus slave 382 addresses be left-justified (xxxxxxx0b) rather than right-justified. 383 All of the other SMBus controller drivers require left-justified 384 slave addresses, so this change makes all the drivers provide the 385 same interface. 386 38720090201: 388 INET6 statistics (struct ip6stat) was updated. 389 netstat(1) needs to be recompiled. 390 39120090119: 392 NTFS has been removed from GENERIC kernel on amd64 to match 393 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 394 will load ntfs.ko module automatically when NTFS support is 395 actually needed, unless ntfs.ko is not installed or security 396 level prohibits loading kernel modules. If either is the case, 397 "options NTFS" has to be added into kernel config. 398 39920090115: 400 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 401 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 402 800061. User space tools that rely on the size of struct tcpcb in 403 tcp_var.h (e.g. sockstat) need to be recompiled. 404 40520081225: 406 ng_tty(4) module updated to match the new TTY subsystem. 407 Due to API change, user-level applications must be updated. 408 New API support added to mpd5 CVS and expected to be present 409 in next mpd5.3 release. 410 41120081219: 412 With __FreeBSD_version 800060 the makefs tool is part of 413 the base system (it was a port). 414 41520081216: 416 The afdata and ifnet locks have been changed from mutexes to 417 rwlocks, network modules will need to be re-compiled. 418 41920081214: 420 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 421 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 422 The new code reduced struct rtentry{} by 16 bytes on 32-bit 423 architecture and 40 bytes on 64-bit architecture. The userland 424 applications "arp" and "ndp" have been updated accordingly. 425 The output from "netstat -r" shows only routing entries and 426 none of the L2 information. 427 42820081130: 429 __FreeBSD_version 800057 marks the switchover from the 430 binary ath hal to source code. Users must add the line: 431 432 options AH_SUPPORT_AR5416 433 434 to their kernel config files when specifying: 435 436 device ath_hal 437 438 The ath_hal module no longer exists; the code is now compiled 439 together with the driver in the ath module. It is now 440 possible to tailor chip support (i.e. reduce the set of chips 441 and thereby the code size); consult ath_hal(4) for details. 442 44320081121: 444 __FreeBSD_version 800054 adds memory barriers to 445 <machine/atomic.h>, new interfaces to ifnet to facilitate 446 multiple hardware transmit queues for cards that support 447 them, and a lock-less ring-buffer implementation to 448 enable drivers to more efficiently manage queueing of 449 packets. 450 45120081117: 452 A new version of ZFS (version 13) has been merged to -HEAD. 453 This version has zpool attribute "listsnapshots" off by 454 default, which means "zfs list" does not show snapshots, 455 and is the same as Solaris behavior. 456 45720081028: 458 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 459 46020081009: 461 The uhci, ohci, ehci and slhci USB Host controller drivers have 462 been put into separate modules. If you load the usb module 463 separately through loader.conf you will need to load the 464 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 465 controller add the following to loader.conf: 466 467 uhci_load="YES" 468 ehci_load="YES" 469 47020081009: 471 The ABI used by the PMC toolset has changed. Please keep 472 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 473 sync. 474 47520080820: 476 The TTY subsystem of the kernel has been replaced by a new 477 implementation, which provides better scalability and an 478 improved driver model. Most common drivers have been migrated to 479 the new TTY subsystem, while others have not. The following 480 drivers have not yet been ported to the new TTY layer: 481 482 PCI/ISA: 483 cy, digi, rc, rp, sio 484 485 USB: 486 ubser, ucycom 487 488 Line disciplines: 489 ng_h4, ng_tty, ppp, sl, snp 490 491 Adding these drivers to your kernel configuration file shall 492 cause compilation to fail. 493 49420080818: 495 ntpd has been upgraded to 4.2.4p5. 496 49720080801: 498 OpenSSH has been upgraded to 5.1p1. 499 500 For many years, FreeBSD's version of OpenSSH preferred DSA 501 over RSA for host and user authentication keys. With this 502 upgrade, we've switched to the vendor's default of RSA over 503 DSA. This may cause upgraded clients to warn about unknown 504 host keys even for previously known hosts. Users should 505 follow the usual procedure for verifying host keys before 506 accepting the RSA key. 507 508 This can be circumvented by setting the "HostKeyAlgorithms" 509 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 510 command line. 511 512 Please note that the sequence of keys offered for 513 authentication has been changed as well. You may want to 514 specify IdentityFile in a different order to revert this 515 behavior. 516 51720080713: 518 The sio(4) driver has been removed from the i386 and amd64 519 kernel configuration files. This means uart(4) is now the 520 default serial port driver on those platforms as well. 521 522 To prevent collisions with the sio(4) driver, the uart(4) driver 523 uses different names for its device nodes. This means the 524 onboard serial port will now most likely be called "ttyu0" 525 instead of "ttyd0". You may need to reconfigure applications to 526 use the new device names. 527 528 When using the serial port as a boot console, be sure to update 529 /boot/device.hints and /etc/ttys before booting the new kernel. 530 If you forget to do so, you can still manually specify the hints 531 at the loader prompt: 532 533 set hint.uart.0.at="isa" 534 set hint.uart.0.port="0x3F8" 535 set hint.uart.0.flags="0x10" 536 set hint.uart.0.irq="4" 537 boot -s 538 53920080609: 540 The gpt(8) utility has been removed. Use gpart(8) to partition 541 disks instead. 542 54320080603: 544 The version that Linuxulator emulates was changed from 2.4.2 545 to 2.6.16. If you experience any problems with Linux binaries 546 please try to set sysctl compat.linux.osrelease to 2.4.2 and 547 if it fixes the problem contact emulation mailing list. 548 54920080525: 550 ISDN4BSD (I4B) was removed from the src tree. You may need to 551 update a your kernel configuration and remove relevant entries. 552 55320080509: 554 I have checked in code to support multiple routing tables. 555 See the man pages setfib(1) and setfib(2). 556 This is a hopefully backwards compatible version, 557 but to make use of it you need to compile your kernel 558 with options ROUTETABLES=2 (or more up to 16). 559 56020080420: 561 The 802.11 wireless support was redone to enable multi-bss 562 operation on devices that are capable. The underlying device 563 is no longer used directly but instead wlanX devices are 564 cloned with ifconfig. This requires changes to rc.conf files. 565 For example, change: 566 ifconfig_ath0="WPA DHCP" 567 to 568 wlans_ath0=wlan0 569 ifconfig_wlan0="WPA DHCP" 570 see rc.conf(5) for more details. In addition, mergemaster of 571 /etc/rc.d is highly recommended. Simultaneous update of userland 572 and kernel wouldn't hurt either. 573 574 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 575 modules were merged into the base wlan module. All references 576 to these modules (e.g. in kernel config files) must be removed. 577 57820080408: 579 psm(4) has gained write(2) support in native operation level. 580 Arbitrary commands can be written to /dev/psm%d and status can 581 be read back from it. Therefore, an application is responsible 582 for status validation and error recovery. It is a no-op in 583 other operation levels. 584 58520080312: 586 Support for KSE threading has been removed from the kernel. To 587 run legacy applications linked against KSE libmap.conf may 588 be used. The following libmap.conf may be used to ensure 589 compatibility with any prior release: 590 591 libpthread.so.1 libthr.so.1 592 libpthread.so.2 libthr.so.2 593 libkse.so.3 libthr.so.3 594 59520080301: 596 The layout of struct vmspace has changed. This affects libkvm 597 and any executables that link against libkvm and use the 598 kvm_getprocs() function. In particular, but not exclusively, 599 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 600 The effects are minimal, but it's advisable to upgrade world 601 nonetheless. 602 60320080229: 604 The latest em driver no longer has support in it for the 605 82575 adapter, this is now moved to the igb driver. The 606 split was done to make new features that are incompatible 607 with older hardware easier to do. 608 60920080220: 610 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 611 likewise the kernel option is now GEOM_LINUX_LVM. 612 61320080211: 614 The default NFS mount mode has changed from UDP to TCP for 615 increased reliability. If you rely on (insecurely) NFS 616 mounting across a firewall you may need to update your 617 firewall rules. 618 61920080208: 620 Belatedly note the addition of m_collapse for compacting 621 mbuf chains. 622 62320080126: 624 The fts(3) structures have been changed to use adequate 625 integer types for their members and so to be able to cope 626 with huge file trees. The old fts(3) ABI is preserved 627 through symbol versioning in libc, so third-party binaries 628 using fts(3) should still work, although they will not take 629 advantage of the extended types. At the same time, some 630 third-party software might fail to build after this change 631 due to unportable assumptions made in its source code about 632 fts(3) structure members. Such software should be fixed 633 by its vendor or, in the worst case, in the ports tree. 634 FreeBSD_version 800015 marks this change for the unlikely 635 case that a portable fix is impossible. 636 63720080123: 638 To upgrade to -current after this date, you must be running 639 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 640 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 641 64220071128: 643 The ADAPTIVE_GIANT kernel option has been retired because its 644 functionality is the default now. 645 64620071118: 647 The AT keyboard emulation of sunkbd(4) has been turned on 648 by default. In order to make the special symbols of the Sun 649 keyboards driven by sunkbd(4) work under X these now have 650 to be configured the same way as Sun USB keyboards driven 651 by ukbd(4) (which also does AT keyboard emulation), f.e.: 652 653 Option "XkbLayout" "us" 654 Option "XkbRules" "xorg" 655 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 656 65720071024: 658 It has been decided that it is desirable to provide ABI 659 backwards compatibility to the FreeBSD 4/5/6 versions of the 660 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 661 broken with the introduction of PCI domain support (see the 662 20070930 entry). Unfortunately, this required the ABI of 663 PCIOCGETCONF to be broken again in order to be able to 664 provide backwards compatibility to the old version of that 665 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 666 again. As for prominent ports this affects neither pciutils 667 nor xorg-server this time, the hal port needs to be rebuilt 668 however. 669 67020071020: 671 The misnamed kthread_create() and friends have been renamed 672 to kproc_create() etc. Many of the callers already 673 used kproc_start().. 674 I will return kthread_create() and friends in a while 675 with implementations that actually create threads, not procs. 676 Renaming corresponds with version 800002. 677 67820071010: 679 RELENG_7 branched. 680 68120071009: 682 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 683 WITHOUT_LIBTHR are set. 684 68520070930: 686 The PCI code has been made aware of PCI domains. This means that 687 the location strings as used by pciconf(8) etc are now in the 688 following format: pci<domain>:<bus>:<device>[:<function>]. It 689 also means that consumers of <sys/pciio.h> potentially need to 690 be recompiled; this includes the hal and xorg-server ports. 691 69220070928: 693 The caching daemon (cached) was renamed to nscd. nscd.conf 694 configuration file should be used instead of cached.conf and 695 nscd_enable, nscd_pidfile and nscd_flags options should be used 696 instead of cached_enable, cached_pidfile and cached_flags in 697 rc.conf. 698 69920070921: 700 The getfacl(1) utility now prints owning user and group name 701 instead of owning uid and gid in the three line comment header. 702 This is the same behavior as getfacl(1) on Solaris and Linux. 703 70420070704: 705 The new IPsec code is now compiled in using the IPSEC option. The 706 IPSEC option now requires "device crypto" be defined in your kernel 707 configuration. The FAST_IPSEC kernel option is now deprecated. 708 70920070702: 710 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 711 note the changed syntax - keep state is now on by default. Also 712 note the fact that ftp-proxy(8) has been changed from bottom up and 713 has been moved from libexec to usr/sbin. Changes in the ALTQ 714 handling also affect users of IPFW's ALTQ capabilities. 715 71620070701: 717 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 718 only IPsec supported by FreeBSD. The new IPsec stack 719 supports both IPv4 and IPv6. The kernel option will change 720 after the code changes have settled in. For now the kernel 721 option IPSEC is deprecated and FAST_IPSEC is the only option, that 722 will change after some settling time. 723 72420070701: 725 The wicontrol(8) utility has been removed from the base system. wi(4) 726 cards should be configured using ifconfig(8), see the man page for more 727 information. 728 72920070612: 730 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 731 instead of the nve(4) driver. Please update your configuration 732 accordingly. 733 73420070612: 735 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 736 database if it is missing or older than the aliases file. If 737 desired, set the new rc.conf option sendmail_rebuild_aliases 738 to "YES" to restore that functionality. 739 74020070612: 741 The IPv4 multicast socket code has been considerably modified, and 742 moved to the file sys/netinet/in_mcast.c. Initial support for the 743 RFC 3678 Source-Specific Multicast Socket API has been added to 744 the IPv4 network stack. 745 746 Strict multicast and broadcast reception is now the default for 747 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 748 has now been removed. 749 750 The RFC 1724 hack for interface selection has been removed; the use 751 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 752 been added to replace it. Consumers such as routed will soon be 753 updated to reflect this. 754 755 These changes affect users who are running routed(8) or rdisc(8) 756 from the FreeBSD base system on point-to-point or unnumbered 757 interfaces. 758 75920070610: 760 The net80211 layer has changed significantly and all wireless 761 drivers that depend on it need to be recompiled. Further these 762 changes require that any program that interacts with the wireless 763 support in the kernel be recompiled; this includes: ifconfig, 764 wpa_supplicant, hostapd, and wlanstats. Users must also, for 765 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 766 if they use modules for wireless support. These modules implement 767 scanning support for station and ap modes, respectively. Failure 768 to load the appropriate module before marking a wireless interface 769 up will result in a message to the console and the device not 770 operating properly. 771 77220070610: 773 The pam_nologin(8) module ceases to provide an authentication 774 function and starts providing an account management function. 775 Consequent changes to /etc/pam.d should be brought in using 776 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 777 need manual editing as follows. Locate this line (or similar): 778 779 auth required pam_nologin.so no_warn 780 781 and change it according to this example: 782 783 account required pam_nologin.so no_warn 784 785 That is, the first word needs to be changed from "auth" to 786 "account". The new line can be moved to the account section 787 within the file for clarity. Not updating pam.conf(5) files 788 will result in nologin(5) ignored by the respective services. 789 79020070529: 791 The ether_ioctl() function has been synchronized with ioctl(2) 792 and ifnet.if_ioctl. Due to that, the size of one of its arguments 793 has changed on 64-bit architectures. All kernel modules using 794 ether_ioctl() need to be rebuilt on such architectures. 795 79620070516: 797 Improved INCLUDE_CONFIG_FILE support has been introduced to the 798 config(8) utility. In order to take advantage of this new 799 functionality, you are expected to recompile and install 800 src/usr.sbin/config. If you don't rebuild config(8), and your 801 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 802 build will be broken because of a missing "kernconfstring" 803 symbol. 804 80520070513: 806 Symbol versioning is enabled by default. To disable it, use 807 option WITHOUT_SYMVER. It is not advisable to attempt to 808 disable symbol versioning once it is enabled; your installworld 809 will break because a symbol version-less libc will get installed 810 before the install tools. As a result, the old install tools, 811 which previously had symbol dependencies to FBSD_1.0, will fail 812 because the freshly installed libc will not have them. 813 814 The default threading library (providing "libpthread") has been 815 changed to libthr. If you wish to have libkse as your default, 816 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 817 81820070423: 819 The ABI breakage in sendmail(8)'s libmilter has been repaired 820 so it is no longer necessary to recompile mail filters (aka, 821 milters). If you recompiled mail filters after the 20070408 822 note, it is not necessary to recompile them again. 823 82420070417: 825 The new trunk(4) driver has been renamed to lagg(4) as it better 826 reflects its purpose. ifconfig will need to be recompiled. 827 82820070408: 829 sendmail(8) has been updated to version 8.14.1. Mail filters 830 (aka, milters) compiled against the libmilter included in the 831 base operating system should be recompiled. 832 83320070302: 834 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 835 In order to use them one must agree to the respective LICENSE in 836 share/doc/legal and define legal.intel_<name>.license_ack=1 via 837 loader.conf(5) or kenv(1). Make sure to deinstall the now 838 deprecated modules from the respective firmware ports. 839 84020070228: 841 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 842 were removed from FreeBSD's libc. These originally came from INRIA 843 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 844 deprecated in previous releases. 845 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 846 replace it as a more portable (and re-entrant) API. 847 84820070224: 849 To support interrupt filtering a modification to the newbus API 850 has occurred, ABI was broken and __FreeBSD_version was bumped 851 to 700031. Please make sure that your kernel and modules are in 852 sync. For more info: 853 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 854 85520070224: 856 The IPv6 multicast forwarding code may now be loaded into GENERIC 857 kernels by loading the ip_mroute.ko module. This is built into the 858 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 859 set; see src.conf(5) for more information. 860 86120070214: 862 The output of netstat -r has changed. Without -n, we now only 863 print a "network name" without the prefix length if the network 864 address and mask exactly match a Class A/B/C network, and an entry 865 exists in the nsswitch "networks" map. 866 With -n, we print the full unabbreviated CIDR network prefix in 867 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 868 This change is in preparation for changes such as equal-cost 869 multipath, and to more generally assist operational deployment 870 of FreeBSD as a modern IPv4 router. 871 87220070210: 873 PIM has been turned on by default in the IPv4 multicast 874 routing code. The kernel option 'PIM' has now been removed. 875 PIM is now built by default if option 'MROUTING' is specified. 876 It may now be loaded into GENERIC kernels by loading the 877 ip_mroute.ko module. 878 87920070207: 880 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 881 has been removed. Its functionality may be achieved by explicitly 882 configuring gif(4) interfaces and using the 'phyint' keyword in 883 mrouted.conf. 884 XORP does not support source-routed IPv4 multicast tunnels nor the 885 integrated IPIP tunneling, therefore it is not affected by this 886 change. The __FreeBSD_version macro has been bumped to 700030. 887 88820061221: 889 Support for PCI Message Signalled Interrupts has been 890 re-enabled in the bge driver, only for those chips which are 891 believed to support it properly. If there are any problems, 892 MSI can be disabled completely by setting the 893 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 894 in the loader. 895 89620061214: 897 Support for PCI Message Signalled Interrupts has been 898 disabled again in the bge driver. Many revisions of the 899 hardware fail to support it properly. Support can be 900 re-enabled by removing the #define of BGE_DISABLE_MSI in 901 "src/sys/dev/bge/if_bge.c". 902 90320061214: 904 Support for PCI Message Signalled Interrupts has been added 905 to the bge driver. If there are any problems, MSI can be 906 disabled completely by setting the 'hw.pci.enable_msi' and 907 'hw.pci.enable_msix' tunables to 0 in the loader. 908 90920061205: 910 The removal of several facets of the experimental Threading 911 system from the kernel means that the proc and thread structures 912 have changed quite a bit. I suggest all kernel modules that might 913 reference these structures be recompiled.. Especially the 914 linux module. 915 91620061126: 917 Sound infrastructure has been updated with various fixes and 918 improvements. Most of the changes are pretty much transparent, 919 with exceptions of followings: 920 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 921 moved to their own dev sysctl nodes, for example: 922 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 923 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 924 own chardev in the form of "dsp%d.<function>%d", where <function> 925 is p = playback, r = record and v = virtual, respectively. Users 926 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 927 This does not affect those who are using "/dev/dsp". 928 92920061122: 930 geom(4)'s gmirror(8) class metadata structure has been 931 rev'd from v3 to v4. If you update across this point and 932 your metadata is converted for you, you will not be easily 933 able to downgrade since the /boot/kernel.old/geom_mirror.ko 934 kernel module will be unable to read the v4 metadata. You 935 can resolve this by doing from the loader(8) prompt: 936 937 set vfs.root.mountfrom="ufs:/dev/XXX" 938 939 where XXX is the root slice of one of the disks that composed 940 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 941 the array the same way you built it originally. 942 94320061122: 944 The following binaries have been disconnected from the build: 945 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 946 and mount_std. The functionality of these programs has been 947 moved into the mount program. For example, to mount a devfs 948 filesystem, instead of using mount_devfs, use: "mount -t devfs". 949 This does not affect entries in /etc/fstab, since entries in 950 /etc/fstab are always processed with "mount -t fstype". 951 95220061113: 953 Support for PCI Message Signalled Interrupts on i386 and amd64 954 has been added to the kernel and various drivers will soon be 955 updated to use MSI when it is available. If there are any problems, 956 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 957 and 'hw.pci.enable_msix' tunables to 0 in the loader. 958 95920061110: 960 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 961 The lockmgr object layout has been changed as a result of having 962 a lock_object embedded in it. As a consequence all file system 963 kernel modules must be re-compiled. The mutex profiling man page 964 has not yet been updated to reflect this change. 965 96620061026: 967 KSE in the kernel has now been made optional and turned on by 968 default. Use 'nooption KSE' in your kernel config to turn it 969 off. All kernel modules *must* be recompiled after this change. 970 There-after, modules from a KSE kernel should be compatible with 971 modules from a NOKSE kernel due to the temporary padding fields 972 added to 'struct proc'. 973 97420060929: 975 mrouted and its utilities have been removed from the base system. 976 97720060927: 978 Some ioctl(2) command codes have changed. Full backward ABI 979 compatibility is provided if the "options COMPAT_FREEBSD6" is 980 present in the kernel configuration file. Make sure to add 981 this option to your kernel config file, or recompile X.Org 982 and the rest of ports; otherwise they may refuse to work. 983 98420060924: 985 tcpslice has been removed from the base system. 986 98720060913: 988 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 989 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 990 systat needs to be rebuilt. 991 99220060903: 993 libpcap updated to v0.9.4 and tcpdump to v3.9.4 994 99520060816: 996 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 997 for IPFIREWALL_FORWARD is now as it was before when it was first 998 committed and for years after. The behaviour is now ON. 999 100020060725: 1001 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 1002 Now it can decrypt files created from different architectures. 1003 Unfortunately, it is no longer able to decrypt a cipher text 1004 generated with an older version on 64 bit architectures. 1005 If you have such a file, you need old utility to decrypt it. 1006 100720060709: 1008 The interface version of the i4b kernel part has changed. So 1009 after updating the kernel sources and compiling a new kernel, 1010 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 1011 be rebuilt, and vice versa. 1012 101320060627: 1014 The XBOX kernel now defaults to the nfe(4) driver instead of 1015 the nve(4) driver. Please update your configuration 1016 accordingly. 1017 101820060514: 1019 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 1020 PCnet family of NICs has been removed. The new le(4) driver serves 1021 as an equivalent but cross-platform replacement with the pcn(4) 1022 driver still providing performance-optimized support for the subset 1023 of AMD Am79C971 PCnet-FAST and greater chips as before. 1024 102520060511: 1026 The machdep.* sysctls and the adjkerntz utility have been 1027 modified a bit. The new adjkerntz utility uses the new 1028 sysctl names and sysctlbyname() calls, so it may be impossible 1029 to run an old /sbin/adjkerntz utility in single-user mode 1030 with a new kernel. Replace the `adjkerntz -i' step before 1031 `make installworld' with: 1032 1033 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 1034 1035 and proceed as usual with the rest of the installworld-stage 1036 steps. Otherwise, you risk installing binaries with their 1037 timestamp set several hours in the future, especially if 1038 you are running with local time set to GMT+X hours. 1039 104020060412: 1041 The ip6fw utility has been removed. The behavior provided by 1042 ip6fw has been in ipfw2 for a good while and the rc.d scripts 1043 have been updated to deal with it. There are some rules that 1044 might not migrate cleanly. Use rc.firewall6 as a template to 1045 rewrite rules. 1046 104720060428: 1048 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 1049 attachments have been removed. Make sure to configure scc(4) 1050 on sparc64. Note also that by default puc(4) will use uart(4) 1051 and not sio(4) for serial ports because interrupt handling has 1052 been optimized for multi-port serial cards and only uart(4) 1053 implements the interface to support it. 1054 105520060330: 1056 The scc(4) driver replaces puc(4) for Serial Communications 1057 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 1058 Z8530. On sparc64, it is advised to add scc(4) to the kernel 1059 configuration to make sure that the serial ports remain 1060 functional. 1061 106220060317: 1063 Most world/kernel related NO_* build options changed names. 1064 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 1065 after FreeBSD ports) and should be set in /etc/src.conf 1066 (the src.conf(5) manpage is provided). Full backwards 1067 compatibility is maintained for the time being though it's 1068 highly recommended to start moving old options out of the 1069 system-wide /etc/make.conf file into the new /etc/src.conf 1070 while also properly renaming them. More conversions will 1071 likely follow. Posting to current@: 1072 1073 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 1074 107520060305: 1076 The NETSMBCRYPTO kernel option has been retired because its 1077 functionality is always included in NETSMB and smbfs.ko now. 1078 107920060303: 1080 The TDFX_LINUX kernel option was retired and replaced by the 1081 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1082 kernel module. Loading it alone should suffice to get 3dfx support 1083 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1084 its dependencies. 1085 108620060204: 1087 The 'audit' group was added to support the new auditing functionality 1088 in the base system. Be sure to follow the directions for updating, 1089 including the requirement to run mergemaster -p. 1090 109120060201: 1092 The kernel ABI to file system modules was changed on i386. 1093 Please make sure that your kernel and modules are in sync. 1094 109520060118: 1096 This actually occured some time ago, but installing the kernel 1097 now also installs a bunch of symbol files for the kernel modules. 1098 This increases the size of /boot/kernel to about 67Mbytes. You 1099 will need twice this if you will eventually back this up to kernel.old 1100 on your next install. 1101 If you have a shortage of room in your root partition, you should add 1102 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1103 to your /etc/make.conf. 1104 110520060113: 1106 libc's malloc implementation has been replaced. This change has the 1107 potential to uncover application bugs that previously went unnoticed. 1108 See the malloc(3) manual page for more details. 1109 111020060112: 1111 The generic netgraph(4) cookie has been changed. If you upgrade 1112 kernel passing this point, you also need to upgrade userland 1113 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1114 111520060106: 1116 si(4)'s device files now contain the unit number. 1117 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1118 111920060106: 1120 The kernel ABI was mostly destroyed due to a change in the size 1121 of struct lock_object which is nested in other structures such 1122 as mutexes which are nested in all sorts of other structures. 1123 Make sure your kernel and modules are in sync. 1124 112520051231: 1126 The page coloring algorithm in the VM subsystem was converted 1127 from tuning with kernel options to autotuning. Please remove 1128 any PQ_* option except PQ_NOOPT from your kernel config. 1129 113020051211: 1131 The net80211-related tools in the tools/tools/ath directory 1132 have been moved to tools/tools/net80211 and renamed with a 1133 "wlan" prefix. Scripts that use them should be adjusted 1134 accordingly. 1135 113620051202: 1137 Scripts in the local_startup directories (as defined in 1138 /etc/defaults/rc.conf) that have the new rc.d semantics will 1139 now be run as part of the base system rcorder. If there are 1140 errors or problems with one of these local scripts, it could 1141 cause boot problems. If you encounter such problems, boot in 1142 single user mode, remove that script from the */rc.d directory. 1143 Please report the problem to the port's maintainer, and the 1144 freebsd-ports@freebsd.org mailing list. 1145 114620051129: 1147 The nodev mount option was deprecated in RELENG_6 (where it 1148 was a no-op), and is now unsupported. If you have nodev or dev listed 1149 in /etc/fstab, remove it, otherwise it will result in a mount error. 1150 115120051129: 1152 ABI between ipfw(4) and ipfw(8) has been changed. You need 1153 to rebuild ipfw(8) when rebuilding kernel. 1154 115520051108: 1156 rp(4)'s device files now contain the unit number. 1157 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1158 115920051029: 1160 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1161 Its /etc/rc.conf.d configuration file has been `ppp' from 1162 the beginning, and hence there is no need to touch it. 1163 116420051014: 1165 Now most modules get their build-time options from the kernel 1166 configuration file. A few modules still have fixed options 1167 due to their non-conformant implementation, but they will be 1168 corrected eventually. You may need to review the options of 1169 the modules in use, explicitly specify the non-default options 1170 in the kernel configuration file, and rebuild the kernel and 1171 modules afterwards. 1172 117320051001: 1174 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1175 to turn polling(4) on your interfaces. 1176 117720050927: 1178 The old bridge(4) implementation was retired. The new 1179 if_bridge(4) serves as a full functional replacement. 1180 118120050722: 1182 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1183 to conform to POSIX-2001. This change broke an ABI 1184 compatibility on 64 bit architecture. You have to recompile 1185 userland programs that use getaddrinfo(3) on 64 bit 1186 architecture. 1187 118820050711: 1189 RELENG_6 branched here. 1190 119120050629: 1192 The pccard_ifconfig rc.conf variable has been removed and a new 1193 variable, ifconfig_DEFAULT has been introduced. Unlike 1194 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1195 do not have ifconfig_ifn entries rather than just those in 1196 removable_interfaces. 1197 119820050616: 1199 Some previous versions of PAM have permitted the use of 1200 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1201 to third party PAM modules in /usr/local/lib. A change has been 1202 made to require the use of absolute paths in order to avoid 1203 ambiguity and dependence on library path configuration, which may 1204 affect existing configurations. 1205 120620050610: 1207 Major changes to network interface API. All drivers must be 1208 recompiled. Drivers not in the base system will need to be 1209 updated to the new APIs. 1210 121120050609: 1212 Changes were made to kinfo_proc in sys/user.h. Please recompile 1213 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1214 will not behave correctly. 1215 1216 The API and ABI for hwpmc(4) have changed with the addition 1217 of sampling support. Please recompile lib/libpmc(3) and 1218 usr.sbin/{pmcstat,pmccontrol}. 1219 122020050606: 1221 The OpenBSD dhclient was imported in place of the ISC dhclient 1222 and the network interface configuration scripts were updated 1223 accordingly. If you use DHCP to configure your interfaces, you 1224 must now run devd. Also, DNS updating was lost so you will need 1225 to find a workaround if you use this feature. 1226 1227 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1228 sure to run mergemaster -p (like you are supposed to do every time 1229 anyway). 1230 123120050605: 1232 if_bridge was added to the tree. This has changed struct ifnet. 1233 Please recompile userland and all network related modules. 1234 123520050603: 1236 The n_net of a struct netent was changed to an uint32_t, and 1237 1st argument of getnetbyaddr() was changed to an uint32_t, to 1238 conform to POSIX-2001. These changes broke an ABI 1239 compatibility on 64 bit architecture. With these changes, 1240 shlib major of libpcap was bumped. You have to recompile 1241 userland programs that use getnetbyaddr(3), getnetbyname(3), 1242 getnetent(3) and/or libpcap on 64 bit architecture. 1243 124420050528: 1245 Kernel parsing of extra options on '#!' first lines of shell 1246 scripts has changed. Lines with multiple options likely will 1247 fail after this date. For full details, please see 1248 http://people.freebsd.org/~gad/Updating-20050528.txt 1249 125020050503: 1251 The packet filter (pf) code has been updated to OpenBSD 3.7 1252 Please note the changed anchor syntax and the fact that 1253 authpf(8) now needs a mounted fdescfs(5) to function. 1254 125520050415: 1256 The NO_MIXED_MODE kernel option has been removed from the i386 1257 amd64 platforms as its use has been superceded by the new local 1258 APIC timer code. Any kernel config files containing this option 1259 should be updated. 1260 126120050227: 1262 The on-disk format of LC_CTYPE files was changed to be machine 1263 independent. Please make sure NOT to use NO_CLEAN buildworld 1264 when crossing this point. Crossing this point also requires 1265 recompile or reinstall of all locale depended packages. 1266 126720050225: 1268 The ifi_epoch member of struct if_data has been changed to 1269 contain the uptime at which the interface was created or the 1270 statistics zeroed rather then the wall clock time because 1271 wallclock time may go backwards. This should have no impact 1272 unless an snmp implementation is using this value (I know of 1273 none at this point.) 1274 127520050224: 1276 The acpi_perf and acpi_throttle drivers are now part of the 1277 acpi(4) main module. They are no longer built separately. 1278 127920050223: 1280 The layout of struct image_params has changed. You have to 1281 recompile all compatibility modules (linux, svr4, etc) for use 1282 with the new kernel. 1283 128420050223: 1285 The p4tcc driver has been merged into cpufreq(4). This makes 1286 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1287 compile in "device cpufreq" to restore this functionality. 1288 128920050220: 1290 The responsibility of recomputing the file system summary of 1291 a SoftUpdates-enabled dirty volume has been transferred to the 1292 background fsck. A rebuild of fsck(8) utility is recommended 1293 if you have updated the kernel. 1294 1295 To get the old behavior (recompute file system summary at mount 1296 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1297 mounting the new volume. 1298 129920050206: 1300 The cpufreq import is complete. As part of this, the sysctls for 1301 acpi(4) throttling have been removed. The power_profile script 1302 has been updated, so you can use performance/economy_cpu_freq in 1303 rc.conf(5) to set AC on/offline cpu frequencies. 1304 130520050206: 1306 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1307 requires recompiling libnetgraph and userland netgraph utilities. 1308 130920050114: 1310 Support for abbreviated forms of a number of ipfw options is 1311 now deprecated. Warnings are printed to stderr indicating the 1312 correct full form when a match occurs. Some abbreviations may 1313 be supported at a later date based on user feedback. To be 1314 considered for support, abbreviations must be in use prior to 1315 this commit and unlikely to be confused with current key words. 1316 131720041221: 1318 By a popular demand, a lot of NOFOO options were renamed 1319 to NO_FOO (see bsd.compat.mk for a full list). The old 1320 spellings are still supported, but will cause annoying 1321 warnings on stderr. Make sure you upgrade properly (see 1322 the COMMON ITEMS: section later in this file). 1323 132420041219: 1325 Auto-loading of ancillary wlan modules such as wlan_wep has 1326 been temporarily disabled; you need to statically configure 1327 the modules you need into your kernel or explicitly load them 1328 prior to use. Specifically, if you intend to use WEP encryption 1329 with an 802.11 device load/configure wlan_wep; if you want to 1330 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1331 and wlan_xauth as required. 1332 133320041213: 1334 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1335 (``enable lqr''), older versions would revert to LCP ECHO mode on 1336 negotiation failure. Now, ``enable echo'' is required for this 1337 behaviour. The ppp version number has been bumped to 3.4.2 to 1338 reflect the change. 1339 134020041201: 1341 The wlan support has been updated to split the crypto support 1342 into separate modules. For static WEP you must configure the 1343 wlan_wep module in your system or build and install the module 1344 in place where it can be loaded (the kernel will auto-load 1345 the module when a wep key is configured). 1346 134720041201: 1348 The ath driver has been updated to split the tx rate control 1349 algorithm into a separate module. You need to include either 1350 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1351 135220041116: 1353 Support for systems with an 80386 CPU has been removed. Please 1354 use FreeBSD 5.x or earlier on systems with an 80386. 1355 135620041110: 1357 We have had a hack which would mount the root filesystem 1358 R/W if the device were named 'md*'. As part of the vnode 1359 work I'm doing I have had to remove this hack. People 1360 building systems which use preloaded MD root filesystems 1361 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1362 their /etc/rc scripts. 1363 136420041104: 1365 FreeBSD 5.3 shipped here. 1366 136720041102: 1368 The size of struct tcpcb has changed again due to the removal 1369 of RFC1644 T/TCP. You have to recompile userland programs that 1370 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1371 137220041022: 1373 The size of struct tcpcb has changed. You have to recompile 1374 userland programs that read kmem for tcp sockets directly 1375 (netstat, sockstat, etc.) 1376 137720041016: 1378 RELENG_5 branched here. For older entries, please see updating 1379 in the RELENG_5 branch. 1380 1381COMMON ITEMS: 1382 1383 General Notes 1384 ------------- 1385 Avoid using make -j when upgrading. From time to time in the 1386 past there have been problems using -j with buildworld and/or 1387 installworld. This is especially true when upgrading between 1388 "distant" versions (eg one that cross a major release boundary 1389 or several minor releases, or when several months have passed 1390 on the -current branch). 1391 1392 Sometimes, obscure build problems are the result of environment 1393 poisoning. This can happen because the make utility reads its 1394 environment when searching for values for global variables. 1395 To run your build attempts in an "environmental clean room", 1396 prefix all make commands with 'env -i '. See the env(1) manual 1397 page for more details. 1398 1399 When upgrading from one major version to another it is generally 1400 best to upgrade to the latest code in the currently installed branch 1401 first, then do an upgrade to the new branch. This is the best-tested 1402 upgrade path, and has the highest probability of being successful. 1403 Please try this approach before reporting problems with a major 1404 version upgrade. 1405 1406 To build a kernel 1407 ----------------- 1408 If you are updating from a prior version of FreeBSD (even one just 1409 a few days old), you should follow this procedure. It is the most 1410 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1411 1412 make kernel-toolchain 1413 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1414 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1415 1416 To test a kernel once 1417 --------------------- 1418 If you just want to boot a kernel once (because you are not sure 1419 if it works, or if you want to boot a known bad kernel to provide 1420 debugging information) run 1421 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1422 nextboot -k testkernel 1423 1424 To just build a kernel when you know that it won't mess you up 1425 -------------------------------------------------------------- 1426 This assumes you are already running a 5.X system. Replace 1427 ${arch} with the architecture of your machine (e.g. "i386", 1428 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1429 1430 cd src/sys/${arch}/conf 1431 config KERNEL_NAME_HERE 1432 cd ../compile/KERNEL_NAME_HERE 1433 make depend 1434 make 1435 make install 1436 1437 If this fails, go to the "To build a kernel" section. 1438 1439 To rebuild everything and install it on the current system. 1440 ----------------------------------------------------------- 1441 # Note: sometimes if you are running current you gotta do more than 1442 # is listed here if you are upgrading from a really old current. 1443 1444 <make sure you have good level 0 dumps> 1445 make buildworld 1446 make kernel KERNCONF=YOUR_KERNEL_HERE 1447 [1] 1448 <reboot in single user> [3] 1449 mergemaster -p [5] 1450 make installworld 1451 make delete-old 1452 mergemaster [4] 1453 <reboot> 1454 1455 1456 To cross-install current onto a separate partition 1457 -------------------------------------------------- 1458 # In this approach we use a separate partition to hold 1459 # current's root, 'usr', and 'var' directories. A partition 1460 # holding "/", "/usr" and "/var" should be about 2GB in 1461 # size. 1462 1463 <make sure you have good level 0 dumps> 1464 <boot into -stable> 1465 make buildworld 1466 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1467 <maybe newfs current's root partition> 1468 <mount current's root partition on directory ${CURRENT_ROOT}> 1469 make installworld DESTDIR=${CURRENT_ROOT} 1470 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1471 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1472 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1473 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1474 <reboot into current> 1475 <do a "native" rebuild/install as described in the previous section> 1476 <maybe install compatibility libraries from ports/misc/compat*> 1477 <reboot> 1478 1479 1480 To upgrade in-place from 5.x-stable to current 1481 ---------------------------------------------- 1482 <make sure you have good level 0 dumps> 1483 make buildworld [9] 1484 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1485 [1] 1486 <reboot in single user> [3] 1487 mergemaster -p [5] 1488 make installworld 1489 make delete-old 1490 mergemaster -i [4] 1491 <reboot> 1492 1493 Make sure that you've read the UPDATING file to understand the 1494 tweaks to various things you need. At this point in the life 1495 cycle of current, things change often and you are on your own 1496 to cope. The defaults can also change, so please read ALL of 1497 the UPDATING entries. 1498 1499 Also, if you are tracking -current, you must be subscribed to 1500 freebsd-current@freebsd.org. Make sure that before you update 1501 your sources that you have read and understood all the recent 1502 messages there. If in doubt, please track -stable which has 1503 much fewer pitfalls. 1504 1505 [1] If you have third party modules, such as vmware, you 1506 should disable them at this point so they don't crash your 1507 system on reboot. 1508 1509 [3] From the bootblocks, boot -s, and then do 1510 fsck -p 1511 mount -u / 1512 mount -a 1513 cd src 1514 adjkerntz -i # if CMOS is wall time 1515 Also, when doing a major release upgrade, it is required that 1516 you boot into single user mode to do the installworld. 1517 1518 [4] Note: This step is non-optional. Failure to do this step 1519 can result in a significant reduction in the functionality of the 1520 system. Attempting to do it by hand is not recommended and those 1521 that pursue this avenue should read this file carefully, as well 1522 as the archives of freebsd-current and freebsd-hackers mailing lists 1523 for potential gotchas. 1524 1525 [5] Usually this step is a noop. However, from time to time 1526 you may need to do this if you get unknown user in the following 1527 step. It never hurts to do it all the time. You may need to 1528 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1529 install) after the buildworld before this step if you last updated 1530 from current before 20020224 or from -stable before 20020408. 1531 1532 [8] In order to have a kernel that can run the 4.x binaries 1533 needed to do an installworld, you must include the COMPAT_FREEBSD4 1534 option in your kernel. Failure to do so may leave you with a system 1535 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1536 is required to run the 5.x binaries on more recent kernels. 1537 1538 Make sure that you merge any new devices from GENERIC since the 1539 last time you updated your kernel config file. 1540 1541 [9] When checking out sources, you must include the -P flag to have 1542 cvs prune empty directories. 1543 1544 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1545 "?=" instead of the "=" assignment operator, so that buildworld can 1546 override the CPUTYPE if it needs to. 1547 1548 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1549 not on the command line, or in /etc/make.conf. buildworld will 1550 warn if it is improperly defined. 1551FORMAT: 1552 1553This file contains a list, in reverse chronological order, of major 1554breakages in tracking -current. Not all things will be listed here, 1555and it only starts on October 16, 2004. Updating files can found in 1556previous releases if your system is older than this. 1557 1558Copyright information: 1559 1560Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1561 1562Redistribution, publication, translation and use, with or without 1563modification, in full or in part, in any form or format of this 1564document are permitted without further permission from the author. 1565 1566THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1567IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1568WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1569DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1570INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1571(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1572SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1573HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1574STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1575IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1576POSSIBILITY OF SUCH DAMAGE. 1577 1578If you find this document useful, and you want to, you may buy the 1579author a beer. 1580 1581Contact Warner Losh if you have any questions about your use of 1582this document. 1583 1584$FreeBSD$ 1585