1 Updating Information for FreeBSD current users
3 This file is maintained and copyrighted by M. Warner Losh
4 <imp@village.org>. See end of file for further details. For commonly
5 done items, please see the COMMON ITEMS: section later in the file.
7 Items affecting the ports and packages system can be found in
8 /usr/ports/UPDATING. Please read that file before running
11 NOTE TO PEOPLE WHO THINK THAT FreeBSD 8.x IS SLOW ON IA64 OR SUN4V:
12 For ia64 the INVARIANTS and INVARIANT_SUPPORT kernel options
13 were left in the GENERIC kernel because the kernel does not
14 work properly without them. For sun4v all of the normal kernel
15 debugging tools present in HEAD were left in place because
16 sun4v support still needs work to become production ready.
19 The config(8) command has been updated to maintain compatibility
20 with config files from 8.0-RELEASE. You will need a new version
21 of config to build kernels (this version can be used from 8.0-RELEASE
22 forward). The buildworld target will generate it, so following
23 the instructions in this file for updating will work glitch-free.
24 Merely doing a make buildkernel without first doing a make buildworld
25 (or kernel-toolchain), or attempting to build a kernel using
26 traidtional methods will generate a config version warning, indicating
30 The rc.firewall and rc.firewall6 were unified, and
31 rc.firewall6 and rc.d/ip6fw were removed.
32 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
33 variables are obsoleted. Instead, the following new rc
34 variables are added to rc.d/ipfw:
36 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
37 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
38 firewall_simple_onet_ipv6
40 The meanings correspond to the relevant IPv4 variables.
43 COMPAT_IA32 has been added as an alias for COMPAT_FREEBSD32. A new
44 version of config(8) is required. The error message when you hit this
45 condition is confusing (COMPAT_FREEBSD32 duplicate option), when it
46 should really say "your config is too old to compile this new kernel."
49 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
50 to allow 32-bit compatibility on non-x86 platforms. All kernel
51 configurations on amd64 and ia64 platforms using these options must
52 be modified accordingly.
55 Introduce the kernel thread "deadlock resolver" (which can be enabled
56 via the DEADLKRES option, see NOTES for more details) and the
57 sleepq_type() function for sleepqueues.
60 802.11s D3.03 support was committed. This is incompatible with
61 the previous code, which was based on D3.0.
64 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
65 mount(8) and -a option for df(1) to see them.
68 Remove the option STOP_NMI. The default action is now to use NMI
69 only for KDB via the newly introduced function stop_cpus_hard()
70 and maintain stop_cpus() to just use a normal IPI_STOP on ia32
77 Bump the shared library version numbers for all libraries that
78 do not use symbol versioning as part of the 8.0-RELEASE cycle.
79 Bump __FreeBSD_version to 800105.
82 Due to changes in the implementation of virtual network stack
83 support, all network-related kernel modules must be recompiled.
84 As this change breaks the ABI, bump __FreeBSD_version to 800104.
87 The TOE interface to the TCP syncache has been modified to remove struct
88 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
89 cxgb driver is the only TOE consumer affected by this change, and needs
90 to be recompiled along with the kernel. As this change breaks the ABI,
91 bump __FreeBSD_version to 800103.
94 Padding has been added to struct tcpcb, sackhint and tcpstat in
95 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
96 maintainig the ABI. However, this change breaks the ABI, so bump
97 __FreeBSD_version to 800102. User space tools that rely on the size of
98 any of these structs (e.g. sockstat) need to be recompiled.
101 The NFS_LEGACYRPC option has been removed along with the old
102 kernel RPC implementation that this option selected. Kernel
103 configurations may need to be adjusted.
106 The network interface device nodes at /dev/net/<interface> have
107 been removed. All ioctl operations can be performed the normal
108 way using routing sockets. The kqueue functionality can
109 generally be replaced with routing sockets.
112 The documentation from the FreeBSD Documentation Project
113 (Handbook, FAQ, etc.) is now installed via packages by
114 sysinstall(8) and under the /usr/local/share/doc/freebsd
115 directory instead of /usr/share/doc.
118 The ABI of various structures related to the SYSV IPC API have
119 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
120 kernel options now all require COMPAT_FREEBSD7.
121 Bump __FreeBSD_version to 800100.
124 Layout of struct vnet has changed as routing related variables
125 were moved to their own Vimage module. Modules need to be
126 recompiled. Bump __FreeBSD_version to 800099.
129 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
130 and 1024 respectively. As long as no more than 16 groups per
131 process are used, no changes should be visible. When more
132 than 16 groups are used, old binaries may fail if they call
133 getgroups() or getgrouplist() with statically sized storage.
134 Recompiling will work around this, but applications should be
135 modified to use dynamically allocated storage for group arrays
136 as POSIX.1-2008 does not cap an implementation's number of
137 supported groups at NGROUPS_MAX+1 as previous versions did.
139 NFS and portalfs mounts may also be affected as the list of
140 groups is truncated to 16. Users of NFS who use more than 16
141 groups, should take care that negative group permissions are not
142 used on the exported file systems as they will not be reliable
143 unless a GSSAPI based authentication method is used.
146 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
147 This option compiles in the support for adaptive spinning for lockmgrs
148 which want to enable it. The lockinit() function now accepts the
149 flag LK_ADAPTIVE in order to make the lock object subject to
150 adaptive spinning when both held in write and read mode.
153 The layout of the structure returned by IEEE80211_IOC_STA_INFO
154 has changed. User applications that use this ioctl need to be
158 The layout of struct thread has changed. Kernel and modules
162 The layout of structs ifnet, domain, protosw and vnet_net has
163 changed. Kernel modules need to be rebuilt.
164 Bump __FreeBSD_version to 800097.
167 window(1) has been removed from the base system. It can now be
168 installed from ports. The port is called misc/window.
171 The way we are storing and accessing `routing table' entries
172 has changed. Programs reading the FIB, like netstat, need to
176 A new netisr implementation has been added for FreeBSD 8. Network
177 file system modules, such as igmp, ipdivert, and others, should be
179 Bump __FreeBSD_version to 800096.
182 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
186 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
187 Bump __FreeBSD_version to 800094.
190 Add mnt_xflag field to 'struct mount'. File system modules
192 Bump __FreeBSD_version to 800093.
195 The compiling option ADAPTIVE_SX has been retired while it has been
196 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
197 The KPI for sx_init_flags() changes as accepting flags:
198 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
199 has been introduced in order to handle the reversed logic.
200 Bump __FreeBSD_version to 800092.
203 Add support for hierarchical jails. Remove global securelevel.
204 Bump __FreeBSD_version to 800091.
207 The layout of struct vnet_net has changed, therefore modules
209 Bump __FreeBSD_version to 800090.
212 The newly imported zic(8) produces a new format in the
213 output. Please run tzsetup(8) to install the newly created
214 data to /etc/localtime.
217 The sysctl tree for the usb stack has renamed from hw.usb2.* to
218 hw.usb.* and is now consistent again with previous releases.
221 802.11 monitor mode support was revised and driver api's
222 were changed. Drivers dependent on net80211 now support
223 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
224 user-visible data structures were changed but applications
225 that use DLT_IEEE802_11 may require changes.
226 Bump __FreeBSD_version to 800088.
229 The layout of the following structs has changed: sysctl_oid,
230 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
231 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
232 panics may be experienced. World rebuild is required for
233 correctly checking networking state from userland.
234 Bump __FreeBSD_version to 800085.
237 MLDv2 and Source-Specific Multicast (SSM) have been merged
238 to the IPv6 stack. VIMAGE hooks are in but not yet used.
239 The implementation of SSM within FreeBSD's IPv6 stack closely
240 follows the IPv4 implementation.
242 For kernel developers:
244 * The most important changes are that the ip6_output() and
245 ip6_input() paths no longer take the IN6_MULTI_LOCK,
246 and this lock has been downgraded to a non-recursive mutex.
248 * As with the changes to the IPv4 stack to support SSM, filtering
249 of inbound multicast traffic must now be performed by transport
250 protocols within the IPv6 stack. This does not apply to TCP and
251 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
253 * The KPIs used by IPv6 multicast are similar to those used by
254 the IPv4 stack, with the following differences:
255 * im6o_mc_filter() is analogous to imo_multicast_filter().
256 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
257 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
258 * IN6_LOOKUP_MULTI() has been deprecated and removed.
259 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
260 for MLDv1 have an additional 'timer' argument which is used to
261 jitter the initial membership report for the solicited-node
262 multicast membership on-link.
263 * This is not strictly needed for MLDv2, which already jitters
264 its report transmissions. However, the 'timer' argument is
265 preserved in case MLDv1 is active on the interface.
267 * The KAME linked-list based IPv6 membership implementation has
268 been refactored to use a vector similar to that used by the IPv4
270 Code which maintains a list of its own multicast memberships
271 internally, e.g. carp, has been updated to reflect the new
274 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
275 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
276 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
277 implementation constraint which needs to be addressed in HEAD.
279 For application developers:
281 * The changes are broadly similar to those made for the IPv4
284 * The use of IPv4 and IPv6 multicast socket options on the same
285 socket, using mapped addresses, HAS NOT been tested or supported.
287 * There are a number of issues with the implementation of various
288 IPv6 multicast APIs which need to be resolved in the API surface
289 before the implementation is fully compatible with KAME userland
290 use, and these are mostly to do with interface index treatment.
292 * The literature available discusses the use of either the delta / ASM
293 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
294 using setsourcefilter(3)/getsourcefilter(3). For more information
295 please refer to RFC 3768, 'Socket Interface Extensions for
296 Multicast Source Filters'.
298 * Applications which use the published RFC 3678 APIs should be fine.
300 For systems administrators:
302 * The mtest(8) utility has been refactored to support IPv6, in
303 addition to IPv4. Interface addresses are no longer accepted
304 as arguments, their names must be used instead. The utility
305 will map the interface name to its first IPv4 address as
306 returned by getifaddrs(3).
308 * The ifmcstat(8) utility has also been updated to print the MLDv2
309 endpoint state and source filter lists via sysctl(3).
311 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
312 loopback of IPv6 multicast datagrams by default; it defaults to 1
313 to preserve the existing behaviour. Disabling multicast loopback is
314 recommended for optimal system performance.
316 * The IPv6 MROUTING code has been changed to examine this sysctl
317 instead of attempting to perform a group lookup before looping
318 back forwarded datagrams.
320 Bump __FreeBSD_version to 800084.
323 Implement low-level Bluetooth HCI API.
324 Bump __FreeBSD_version to 800083.
327 The layout of struct malloc_type, used by modules to register new
328 memory allocation types, has changed. Most modules will need to
329 be rebuilt or panics may be experienced.
330 Bump __FreeBSD_version to 800081.
333 Anticipate overflowing inp_flags - add inp_flags2.
334 This changes most offsets in inpcb, so checking v4 connection
335 state will require a world rebuild.
336 Bump __FreeBSD_version to 800080.
339 Add an llentry to struct route and struct route_in6. Modules
340 embedding a struct route will need to be recompiled.
341 Bump __FreeBSD_version to 800079.
344 The size of rt_metrics_lite and by extension rtentry has changed.
345 Networking administration apps will need to be recompiled.
346 The route command now supports show as an alias for get, weighting
347 of routes, sticky and nostick flags to alter the behavior of stateful
349 Bump __FreeBSD_version to 800078.
352 Do not use Giant for kbdmux(4) locking. This is wrong and
353 apparently causing more problems than it solves. This will
354 re-open the issue where interrupt handlers may race with
355 kbdmux(4) in polling mode. Typical symptoms include (but
356 not limited to) duplicated and/or missing characters when
357 low level console functions (such as gets) are used while
358 interrupts are enabled (for example geli password prompt,
359 mountroot prompt etc.). Disabling kbdmux(4) may help.
362 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
363 kernel modules referencing any of the above need to be recompiled.
364 Bump __FreeBSD_version to 800075.
367 GEOM_PART has become the default partition slicer for storage devices,
368 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
369 introduces some changes:
371 MSDOS/EBR: the devices created from MSDOS extended partition entries
372 (EBR) can be named differently than with GEOM_MBR and are now symlinks
373 to devices with offset-based names. fstabs may need to be modified.
375 BSD: the "geometry does not match label" warning is harmless in most
376 cases but it points to problems in file system misalignment with
377 disk geometry. The "c" partition is now implicit, covers the whole
378 top-level drive and cannot be (mis)used by users.
380 General: Kernel dumps are now not allowed to be written to devices
381 whose partition types indicate they are meant to be used for file
382 systems (or, in case of MSDOS partitions, as something else than
385 Most of these changes date approximately from 200812.
388 The uscanner(4) driver has been removed from the kernel. This follows
389 Linux removing theirs in 2.6 and making libusb the default interface
393 The multicast forwarding code has been cleaned up. netstat(1)
394 only relies on KVM now for printing bandwidth upcall meters.
395 The IPv4 and IPv6 modules are split into ip_mroute_mod and
396 ip6_mroute_mod respectively. The config(5) options for statically
397 compiling this code remain the same, i.e. 'options MROUTING'.
400 Support for the IFF_NEEDSGIANT network interface flag has been
401 removed, which means that non-MPSAFE network device drivers are no
402 longer supported. In particular, if_ar, if_sr, and network device
403 drivers from the old (legacy) USB stack can no longer be built or
407 POSIX.1 Native Language Support (NLS) has been enabled in libc and
408 a bunch of new language catalog files have also been added.
409 This means that some common libc messages are now localized and
410 they depend on the LC_MESSAGES environmental variable.
413 The k8temp(4) driver has been renamed to amdtemp(4) since
414 support for K10 and K11 CPU families was added.
417 IGMPv3 and Source-Specific Multicast (SSM) have been merged
418 to the IPv4 stack. VIMAGE hooks are in but not yet used.
420 For kernel developers, the most important changes are that the
421 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
422 and this lock has been downgraded to a non-recursive mutex.
424 Transport protocols (UDP, Raw IP) are now responsible for filtering
425 inbound multicast traffic according to group membership and source
426 filters. The imo_multicast_filter() KPI exists for this purpose.
427 Transports which do not use multicast (SCTP, TCP) already reject
428 multicast by default. Forwarding and receive performance may improve
429 as a mutex acquisition is no longer needed in the ip_input()
430 low-level input path. in_addmulti() and in_delmulti() are shimmed
431 to new KPIs which exist to support SSM in-kernel.
433 For application developers, it is recommended that loopback of
434 multicast datagrams be disabled for best performance, as this
435 will still cause the lock to be taken for each looped-back
436 datagram transmission. The net.inet.ip.mcast.loop sysctl may
437 be tuned to 0 to disable loopback by default; it defaults to 1
438 to preserve the existing behaviour.
440 For systems administrators, to obtain best performance with
441 multicast reception and multiple groups, it is always recommended
442 that a card with a suitably precise hash filter is used. Hash
443 collisions will still result in the lock being taken within the
444 transport protocol input path to check group membership.
446 If deploying FreeBSD in an environment with IGMP snooping switches,
447 it is recommended that the net.inet.igmp.sendlocal sysctl remain
448 enabled; this forces 224.0.0.0/24 group membership to be announced
451 The size of 'struct igmpstat' has changed; netstat needs to be
452 recompiled to reflect this.
453 Bump __FreeBSD_version to 800070.
456 libusb20.so.1 is now installed as libusb.so.1 and the ports system
457 updated to use it. This requires a buildworld/installworld in order to
458 update the library and dependencies (usbconfig, etc). Its advisable to
459 rebuild all ports which uses libusb. More specific directions are given
460 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
461 libusb are no longer required and can be removed.
464 A workaround is committed to allow the creation of System V shared
465 memory segment of size > 2 GB on the 64-bit architectures.
466 Due to a limitation of the existing ABI, the shm_segsz member
467 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
468 wrong for large segments. Note that limits must be explicitly
469 raised to allow such segments to be created.
472 The layout of struct ifnet has changed, requiring a rebuild of all
473 network device driver modules.
476 The /dev handling for the new USB stack has changed, a
477 buildworld/installworld is required for libusb20.
480 The new USB2 stack has now been permanently moved in and all kernel and
481 module names reverted to their previous values (eg, usb, ehci, ohci,
482 ums, ...). The old usb stack can be compiled in by prefixing the name
483 with the letter 'o', the old usb modules have been removed.
484 Updating entry 20090216 for xorg and 20090215 for libmap may still
488 The rc.conf(5) option if_up_delay has been renamed to
489 defaultroute_delay to better reflect its purpose. If you have
490 customized this setting in /etc/rc.conf you need to update it to
494 xorg 7.4 wants to configure its input devices via hald which does not
495 yet work with USB2. If the keyboard/mouse does not work in xorg then
497 Option "AllowEmptyInput" "off"
498 to your ServerLayout section. This will cause X to use the configured
499 kbd and mouse sections from your xorg.conf.
502 The GENERIC kernels for all architectures now default to the new USB2
503 stack. No kernel config options or code have been removed so if a
504 problem arises please report it and optionally revert to the old USB
505 stack. If you are loading USB kernel modules or have a custom kernel
506 that includes GENERIC then ensure that usb names are also changed over,
507 eg uftdi -> usb2_serial_ftdi.
509 Older programs linked against the ports libusb 0.1 need to be
510 redirected to the new stack's libusb20. /etc/libmap.conf can
512 # Map old usb library to new one for usb2 stack
513 libusb-0.1.so.8 libusb20.so.1
516 All USB ethernet devices now attach as interfaces under the name ueN
517 (eg. ue0). This is to provide a predictable name as vendors often
518 change usb chipsets in a product without notice.
521 The ichsmb(4) driver has been changed to require SMBus slave
522 addresses be left-justified (xxxxxxx0b) rather than right-justified.
523 All of the other SMBus controller drivers require left-justified
524 slave addresses, so this change makes all the drivers provide the
528 INET6 statistics (struct ip6stat) was updated.
529 netstat(1) needs to be recompiled.
532 NTFS has been removed from GENERIC kernel on amd64 to match
533 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
534 will load ntfs.ko module automatically when NTFS support is
535 actually needed, unless ntfs.ko is not installed or security
536 level prohibits loading kernel modules. If either is the case,
537 "options NTFS" has to be added into kernel config.
540 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
541 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
542 800061. User space tools that rely on the size of struct tcpcb in
543 tcp_var.h (e.g. sockstat) need to be recompiled.
546 ng_tty(4) module updated to match the new TTY subsystem.
547 Due to API change, user-level applications must be updated.
548 New API support added to mpd5 CVS and expected to be present
549 in next mpd5.3 release.
552 With __FreeBSD_version 800060 the makefs tool is part of
553 the base system (it was a port).
556 The afdata and ifnet locks have been changed from mutexes to
557 rwlocks, network modules will need to be re-compiled.
560 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
561 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
562 The new code reduced struct rtentry{} by 16 bytes on 32-bit
563 architecture and 40 bytes on 64-bit architecture. The userland
564 applications "arp" and "ndp" have been updated accordingly.
565 The output from "netstat -r" shows only routing entries and
566 none of the L2 information.
569 __FreeBSD_version 800057 marks the switchover from the
570 binary ath hal to source code. Users must add the line:
572 options AH_SUPPORT_AR5416
574 to their kernel config files when specifying:
578 The ath_hal module no longer exists; the code is now compiled
579 together with the driver in the ath module. It is now
580 possible to tailor chip support (i.e. reduce the set of chips
581 and thereby the code size); consult ath_hal(4) for details.
584 __FreeBSD_version 800054 adds memory barriers to
585 <machine/atomic.h>, new interfaces to ifnet to facilitate
586 multiple hardware transmit queues for cards that support
587 them, and a lock-less ring-buffer implementation to
588 enable drivers to more efficiently manage queueing of
592 A new version of ZFS (version 13) has been merged to -HEAD.
593 This version has zpool attribute "listsnapshots" off by
594 default, which means "zfs list" does not show snapshots,
595 and is the same as Solaris behavior.
598 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
601 The uhci, ohci, ehci and slhci USB Host controller drivers have
602 been put into separate modules. If you load the usb module
603 separately through loader.conf you will need to load the
604 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
605 controller add the following to loader.conf:
611 The ABI used by the PMC toolset has changed. Please keep
612 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
616 atapci kernel module now includes only generic PCI ATA
617 driver. AHCI driver moved to ataahci kernel module.
618 All vendor-specific code moved into separate kernel modules:
619 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
620 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
621 atamarvell, atamicron, atanational, atanetcell, atanvidia,
622 atapromise, ataserverworks, atasiliconimage, atasis, atavia
625 The TTY subsystem of the kernel has been replaced by a new
626 implementation, which provides better scalability and an
627 improved driver model. Most common drivers have been migrated to
628 the new TTY subsystem, while others have not. The following
629 drivers have not yet been ported to the new TTY layer:
632 cy, digi, rc, rp, sio
638 ng_h4, ng_tty, ppp, sl, snp
640 Adding these drivers to your kernel configuration file shall
641 cause compilation to fail.
644 ntpd has been upgraded to 4.2.4p5.
647 OpenSSH has been upgraded to 5.1p1.
649 For many years, FreeBSD's version of OpenSSH preferred DSA
650 over RSA for host and user authentication keys. With this
651 upgrade, we've switched to the vendor's default of RSA over
652 DSA. This may cause upgraded clients to warn about unknown
653 host keys even for previously known hosts. Users should
654 follow the usual procedure for verifying host keys before
655 accepting the RSA key.
657 This can be circumvented by setting the "HostKeyAlgorithms"
658 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
661 Please note that the sequence of keys offered for
662 authentication has been changed as well. You may want to
663 specify IdentityFile in a different order to revert this
667 The sio(4) driver has been removed from the i386 and amd64
668 kernel configuration files. This means uart(4) is now the
669 default serial port driver on those platforms as well.
671 To prevent collisions with the sio(4) driver, the uart(4) driver
672 uses different names for its device nodes. This means the
673 onboard serial port will now most likely be called "ttyu0"
674 instead of "ttyd0". You may need to reconfigure applications to
675 use the new device names.
677 When using the serial port as a boot console, be sure to update
678 /boot/device.hints and /etc/ttys before booting the new kernel.
679 If you forget to do so, you can still manually specify the hints
680 at the loader prompt:
682 set hint.uart.0.at="isa"
683 set hint.uart.0.port="0x3F8"
684 set hint.uart.0.flags="0x10"
685 set hint.uart.0.irq="4"
689 The gpt(8) utility has been removed. Use gpart(8) to partition
693 The version that Linuxulator emulates was changed from 2.4.2
694 to 2.6.16. If you experience any problems with Linux binaries
695 please try to set sysctl compat.linux.osrelease to 2.4.2 and
696 if it fixes the problem contact emulation mailing list.
699 ISDN4BSD (I4B) was removed from the src tree. You may need to
700 update a your kernel configuration and remove relevant entries.
703 I have checked in code to support multiple routing tables.
704 See the man pages setfib(1) and setfib(2).
705 This is a hopefully backwards compatible version,
706 but to make use of it you need to compile your kernel
707 with options ROUTETABLES=2 (or more up to 16).
710 The 802.11 wireless support was redone to enable multi-bss
711 operation on devices that are capable. The underlying device
712 is no longer used directly but instead wlanX devices are
713 cloned with ifconfig. This requires changes to rc.conf files.
715 ifconfig_ath0="WPA DHCP"
718 ifconfig_wlan0="WPA DHCP"
719 see rc.conf(5) for more details. In addition, mergemaster of
720 /etc/rc.d is highly recommended. Simultaneous update of userland
721 and kernel wouldn't hurt either.
723 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
724 modules were merged into the base wlan module. All references
725 to these modules (e.g. in kernel config files) must be removed.
728 psm(4) has gained write(2) support in native operation level.
729 Arbitrary commands can be written to /dev/psm%d and status can
730 be read back from it. Therefore, an application is responsible
731 for status validation and error recovery. It is a no-op in
732 other operation levels.
735 Support for KSE threading has been removed from the kernel. To
736 run legacy applications linked against KSE libmap.conf may
737 be used. The following libmap.conf may be used to ensure
738 compatibility with any prior release:
740 libpthread.so.1 libthr.so.1
741 libpthread.so.2 libthr.so.2
742 libkse.so.3 libthr.so.3
745 The layout of struct vmspace has changed. This affects libkvm
746 and any executables that link against libkvm and use the
747 kvm_getprocs() function. In particular, but not exclusively,
748 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
749 The effects are minimal, but it's advisable to upgrade world
753 The latest em driver no longer has support in it for the
754 82575 adapter, this is now moved to the igb driver. The
755 split was done to make new features that are incompatible
756 with older hardware easier to do.
759 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
760 likewise the kernel option is now GEOM_LINUX_LVM.
763 The default NFS mount mode has changed from UDP to TCP for
764 increased reliability. If you rely on (insecurely) NFS
765 mounting across a firewall you may need to update your
769 Belatedly note the addition of m_collapse for compacting
773 The fts(3) structures have been changed to use adequate
774 integer types for their members and so to be able to cope
775 with huge file trees. The old fts(3) ABI is preserved
776 through symbol versioning in libc, so third-party binaries
777 using fts(3) should still work, although they will not take
778 advantage of the extended types. At the same time, some
779 third-party software might fail to build after this change
780 due to unportable assumptions made in its source code about
781 fts(3) structure members. Such software should be fixed
782 by its vendor or, in the worst case, in the ports tree.
783 FreeBSD_version 800015 marks this change for the unlikely
784 case that a portable fix is impossible.
787 To upgrade to -current after this date, you must be running
788 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
789 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
792 The ADAPTIVE_GIANT kernel option has been retired because its
793 functionality is the default now.
796 The AT keyboard emulation of sunkbd(4) has been turned on
797 by default. In order to make the special symbols of the Sun
798 keyboards driven by sunkbd(4) work under X these now have
799 to be configured the same way as Sun USB keyboards driven
800 by ukbd(4) (which also does AT keyboard emulation), f.e.:
802 Option "XkbLayout" "us"
803 Option "XkbRules" "xorg"
804 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
807 It has been decided that it is desirable to provide ABI
808 backwards compatibility to the FreeBSD 4/5/6 versions of the
809 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
810 broken with the introduction of PCI domain support (see the
811 20070930 entry). Unfortunately, this required the ABI of
812 PCIOCGETCONF to be broken again in order to be able to
813 provide backwards compatibility to the old version of that
814 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
815 again. As for prominent ports this affects neither pciutils
816 nor xorg-server this time, the hal port needs to be rebuilt
820 The misnamed kthread_create() and friends have been renamed
821 to kproc_create() etc. Many of the callers already
823 I will return kthread_create() and friends in a while
824 with implementations that actually create threads, not procs.
825 Renaming corresponds with version 800002.
831 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
832 WITHOUT_LIBTHR are set.
835 The PCI code has been made aware of PCI domains. This means that
836 the location strings as used by pciconf(8) etc are now in the
837 following format: pci<domain>:<bus>:<device>[:<function>]. It
838 also means that consumers of <sys/pciio.h> potentially need to
839 be recompiled; this includes the hal and xorg-server ports.
842 The caching daemon (cached) was renamed to nscd. nscd.conf
843 configuration file should be used instead of cached.conf and
844 nscd_enable, nscd_pidfile and nscd_flags options should be used
845 instead of cached_enable, cached_pidfile and cached_flags in
849 The getfacl(1) utility now prints owning user and group name
850 instead of owning uid and gid in the three line comment header.
851 This is the same behavior as getfacl(1) on Solaris and Linux.
854 The new IPsec code is now compiled in using the IPSEC option. The
855 IPSEC option now requires "device crypto" be defined in your kernel
856 configuration. The FAST_IPSEC kernel option is now deprecated.
859 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
860 note the changed syntax - keep state is now on by default. Also
861 note the fact that ftp-proxy(8) has been changed from bottom up and
862 has been moved from libexec to usr/sbin. Changes in the ALTQ
863 handling also affect users of IPFW's ALTQ capabilities.
866 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
867 only IPsec supported by FreeBSD. The new IPsec stack
868 supports both IPv4 and IPv6. The kernel option will change
869 after the code changes have settled in. For now the kernel
870 option IPSEC is deprecated and FAST_IPSEC is the only option, that
871 will change after some settling time.
874 The wicontrol(8) utility has been removed from the base system. wi(4)
875 cards should be configured using ifconfig(8), see the man page for more
879 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
880 instead of the nve(4) driver. Please update your configuration
884 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
885 database if it is missing or older than the aliases file. If
886 desired, set the new rc.conf option sendmail_rebuild_aliases
887 to "YES" to restore that functionality.
890 The IPv4 multicast socket code has been considerably modified, and
891 moved to the file sys/netinet/in_mcast.c. Initial support for the
892 RFC 3678 Source-Specific Multicast Socket API has been added to
893 the IPv4 network stack.
895 Strict multicast and broadcast reception is now the default for
896 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
897 has now been removed.
899 The RFC 1724 hack for interface selection has been removed; the use
900 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
901 been added to replace it. Consumers such as routed will soon be
902 updated to reflect this.
904 These changes affect users who are running routed(8) or rdisc(8)
905 from the FreeBSD base system on point-to-point or unnumbered
909 The net80211 layer has changed significantly and all wireless
910 drivers that depend on it need to be recompiled. Further these
911 changes require that any program that interacts with the wireless
912 support in the kernel be recompiled; this includes: ifconfig,
913 wpa_supplicant, hostapd, and wlanstats. Users must also, for
914 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
915 if they use modules for wireless support. These modules implement
916 scanning support for station and ap modes, respectively. Failure
917 to load the appropriate module before marking a wireless interface
918 up will result in a message to the console and the device not
922 The pam_nologin(8) module ceases to provide an authentication
923 function and starts providing an account management function.
924 Consequent changes to /etc/pam.d should be brought in using
925 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
926 need manual editing as follows. Locate this line (or similar):
928 auth required pam_nologin.so no_warn
930 and change it according to this example:
932 account required pam_nologin.so no_warn
934 That is, the first word needs to be changed from "auth" to
935 "account". The new line can be moved to the account section
936 within the file for clarity. Not updating pam.conf(5) files
937 will result in nologin(5) ignored by the respective services.
940 The ether_ioctl() function has been synchronized with ioctl(2)
941 and ifnet.if_ioctl. Due to that, the size of one of its arguments
942 has changed on 64-bit architectures. All kernel modules using
943 ether_ioctl() need to be rebuilt on such architectures.
946 Improved INCLUDE_CONFIG_FILE support has been introduced to the
947 config(8) utility. In order to take advantage of this new
948 functionality, you are expected to recompile and install
949 src/usr.sbin/config. If you don't rebuild config(8), and your
950 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
951 build will be broken because of a missing "kernconfstring"
955 Symbol versioning is enabled by default. To disable it, use
956 option WITHOUT_SYMVER. It is not advisable to attempt to
957 disable symbol versioning once it is enabled; your installworld
958 will break because a symbol version-less libc will get installed
959 before the install tools. As a result, the old install tools,
960 which previously had symbol dependencies to FBSD_1.0, will fail
961 because the freshly installed libc will not have them.
963 The default threading library (providing "libpthread") has been
964 changed to libthr. If you wish to have libkse as your default,
965 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
968 The ABI breakage in sendmail(8)'s libmilter has been repaired
969 so it is no longer necessary to recompile mail filters (aka,
970 milters). If you recompiled mail filters after the 20070408
971 note, it is not necessary to recompile them again.
974 The new trunk(4) driver has been renamed to lagg(4) as it better
975 reflects its purpose. ifconfig will need to be recompiled.
978 sendmail(8) has been updated to version 8.14.1. Mail filters
979 (aka, milters) compiled against the libmilter included in the
980 base operating system should be recompiled.
983 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
984 In order to use them one must agree to the respective LICENSE in
985 share/doc/legal and define legal.intel_<name>.license_ack=1 via
986 loader.conf(5) or kenv(1). Make sure to deinstall the now
987 deprecated modules from the respective firmware ports.
990 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
991 were removed from FreeBSD's libc. These originally came from INRIA
992 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
993 deprecated in previous releases.
994 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
995 replace it as a more portable (and re-entrant) API.
998 To support interrupt filtering a modification to the newbus API
999 has occurred, ABI was broken and __FreeBSD_version was bumped
1000 to 700031. Please make sure that your kernel and modules are in
1001 sync. For more info:
1002 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
1005 The IPv6 multicast forwarding code may now be loaded into GENERIC
1006 kernels by loading the ip_mroute.ko module. This is built into the
1007 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
1008 set; see src.conf(5) for more information.
1011 The output of netstat -r has changed. Without -n, we now only
1012 print a "network name" without the prefix length if the network
1013 address and mask exactly match a Class A/B/C network, and an entry
1014 exists in the nsswitch "networks" map.
1015 With -n, we print the full unabbreviated CIDR network prefix in
1016 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
1017 This change is in preparation for changes such as equal-cost
1018 multipath, and to more generally assist operational deployment
1019 of FreeBSD as a modern IPv4 router.
1022 PIM has been turned on by default in the IPv4 multicast
1023 routing code. The kernel option 'PIM' has now been removed.
1024 PIM is now built by default if option 'MROUTING' is specified.
1025 It may now be loaded into GENERIC kernels by loading the
1026 ip_mroute.ko module.
1029 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
1030 has been removed. Its functionality may be achieved by explicitly
1031 configuring gif(4) interfaces and using the 'phyint' keyword in
1033 XORP does not support source-routed IPv4 multicast tunnels nor the
1034 integrated IPIP tunneling, therefore it is not affected by this
1035 change. The __FreeBSD_version macro has been bumped to 700030.
1038 Support for PCI Message Signalled Interrupts has been
1039 re-enabled in the bge driver, only for those chips which are
1040 believed to support it properly. If there are any problems,
1041 MSI can be disabled completely by setting the
1042 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
1046 Support for PCI Message Signalled Interrupts has been
1047 disabled again in the bge driver. Many revisions of the
1048 hardware fail to support it properly. Support can be
1049 re-enabled by removing the #define of BGE_DISABLE_MSI in
1050 "src/sys/dev/bge/if_bge.c".
1053 Support for PCI Message Signalled Interrupts has been added
1054 to the bge driver. If there are any problems, MSI can be
1055 disabled completely by setting the 'hw.pci.enable_msi' and
1056 'hw.pci.enable_msix' tunables to 0 in the loader.
1059 The removal of several facets of the experimental Threading
1060 system from the kernel means that the proc and thread structures
1061 have changed quite a bit. I suggest all kernel modules that might
1062 reference these structures be recompiled.. Especially the
1066 Sound infrastructure has been updated with various fixes and
1067 improvements. Most of the changes are pretty much transparent,
1068 with exceptions of followings:
1069 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1070 moved to their own dev sysctl nodes, for example:
1071 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1072 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1073 own chardev in the form of "dsp%d.<function>%d", where <function>
1074 is p = playback, r = record and v = virtual, respectively. Users
1075 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1076 This does not affect those who are using "/dev/dsp".
1079 geom(4)'s gmirror(8) class metadata structure has been
1080 rev'd from v3 to v4. If you update across this point and
1081 your metadata is converted for you, you will not be easily
1082 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1083 kernel module will be unable to read the v4 metadata. You
1084 can resolve this by doing from the loader(8) prompt:
1086 set vfs.root.mountfrom="ufs:/dev/XXX"
1088 where XXX is the root slice of one of the disks that composed
1089 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1090 the array the same way you built it originally.
1093 The following binaries have been disconnected from the build:
1094 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1095 and mount_std. The functionality of these programs has been
1096 moved into the mount program. For example, to mount a devfs
1097 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1098 This does not affect entries in /etc/fstab, since entries in
1099 /etc/fstab are always processed with "mount -t fstype".
1102 Support for PCI Message Signalled Interrupts on i386 and amd64
1103 has been added to the kernel and various drivers will soon be
1104 updated to use MSI when it is available. If there are any problems,
1105 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1106 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1109 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1110 The lockmgr object layout has been changed as a result of having
1111 a lock_object embedded in it. As a consequence all file system
1112 kernel modules must be re-compiled. The mutex profiling man page
1113 has not yet been updated to reflect this change.
1116 KSE in the kernel has now been made optional and turned on by
1117 default. Use 'nooption KSE' in your kernel config to turn it
1118 off. All kernel modules *must* be recompiled after this change.
1119 There-after, modules from a KSE kernel should be compatible with
1120 modules from a NOKSE kernel due to the temporary padding fields
1121 added to 'struct proc'.
1124 mrouted and its utilities have been removed from the base system.
1127 Some ioctl(2) command codes have changed. Full backward ABI
1128 compatibility is provided if the "options COMPAT_FREEBSD6" is
1129 present in the kernel configuration file. Make sure to add
1130 this option to your kernel config file, or recompile X.Org
1131 and the rest of ports; otherwise they may refuse to work.
1134 tcpslice has been removed from the base system.
1137 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1138 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1139 systat needs to be rebuilt.
1142 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1145 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1146 for IPFIREWALL_FORWARD is now as it was before when it was first
1147 committed and for years after. The behaviour is now ON.
1150 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1151 Now it can decrypt files created from different architectures.
1152 Unfortunately, it is no longer able to decrypt a cipher text
1153 generated with an older version on 64 bit architectures.
1154 If you have such a file, you need old utility to decrypt it.
1157 The interface version of the i4b kernel part has changed. So
1158 after updating the kernel sources and compiling a new kernel,
1159 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1160 be rebuilt, and vice versa.
1163 The XBOX kernel now defaults to the nfe(4) driver instead of
1164 the nve(4) driver. Please update your configuration
1168 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1169 PCnet family of NICs has been removed. The new le(4) driver serves
1170 as an equivalent but cross-platform replacement with the pcn(4)
1171 driver still providing performance-optimized support for the subset
1172 of AMD Am79C971 PCnet-FAST and greater chips as before.
1175 The machdep.* sysctls and the adjkerntz utility have been
1176 modified a bit. The new adjkerntz utility uses the new
1177 sysctl names and sysctlbyname() calls, so it may be impossible
1178 to run an old /sbin/adjkerntz utility in single-user mode
1179 with a new kernel. Replace the `adjkerntz -i' step before
1180 `make installworld' with:
1182 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1184 and proceed as usual with the rest of the installworld-stage
1185 steps. Otherwise, you risk installing binaries with their
1186 timestamp set several hours in the future, especially if
1187 you are running with local time set to GMT+X hours.
1190 The ip6fw utility has been removed. The behavior provided by
1191 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1192 have been updated to deal with it. There are some rules that
1193 might not migrate cleanly. Use rc.firewall6 as a template to
1197 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1198 attachments have been removed. Make sure to configure scc(4)
1199 on sparc64. Note also that by default puc(4) will use uart(4)
1200 and not sio(4) for serial ports because interrupt handling has
1201 been optimized for multi-port serial cards and only uart(4)
1202 implements the interface to support it.
1205 The scc(4) driver replaces puc(4) for Serial Communications
1206 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1207 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1208 configuration to make sure that the serial ports remain
1212 Most world/kernel related NO_* build options changed names.
1213 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1214 after FreeBSD ports) and should be set in /etc/src.conf
1215 (the src.conf(5) manpage is provided). Full backwards
1216 compatibility is maintained for the time being though it's
1217 highly recommended to start moving old options out of the
1218 system-wide /etc/make.conf file into the new /etc/src.conf
1219 while also properly renaming them. More conversions will
1220 likely follow. Posting to current@:
1222 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1225 The NETSMBCRYPTO kernel option has been retired because its
1226 functionality is always included in NETSMB and smbfs.ko now.
1229 The TDFX_LINUX kernel option was retired and replaced by the
1230 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1231 kernel module. Loading it alone should suffice to get 3dfx support
1232 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1236 The 'audit' group was added to support the new auditing functionality
1237 in the base system. Be sure to follow the directions for updating,
1238 including the requirement to run mergemaster -p.
1241 The kernel ABI to file system modules was changed on i386.
1242 Please make sure that your kernel and modules are in sync.
1245 This actually occured some time ago, but installing the kernel
1246 now also installs a bunch of symbol files for the kernel modules.
1247 This increases the size of /boot/kernel to about 67Mbytes. You
1248 will need twice this if you will eventually back this up to kernel.old
1249 on your next install.
1250 If you have a shortage of room in your root partition, you should add
1251 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1252 to your /etc/make.conf.
1255 libc's malloc implementation has been replaced. This change has the
1256 potential to uncover application bugs that previously went unnoticed.
1257 See the malloc(3) manual page for more details.
1260 The generic netgraph(4) cookie has been changed. If you upgrade
1261 kernel passing this point, you also need to upgrade userland
1262 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1265 si(4)'s device files now contain the unit number.
1266 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1269 The kernel ABI was mostly destroyed due to a change in the size
1270 of struct lock_object which is nested in other structures such
1271 as mutexes which are nested in all sorts of other structures.
1272 Make sure your kernel and modules are in sync.
1275 The page coloring algorithm in the VM subsystem was converted
1276 from tuning with kernel options to autotuning. Please remove
1277 any PQ_* option except PQ_NOOPT from your kernel config.
1280 The net80211-related tools in the tools/tools/ath directory
1281 have been moved to tools/tools/net80211 and renamed with a
1282 "wlan" prefix. Scripts that use them should be adjusted
1286 Scripts in the local_startup directories (as defined in
1287 /etc/defaults/rc.conf) that have the new rc.d semantics will
1288 now be run as part of the base system rcorder. If there are
1289 errors or problems with one of these local scripts, it could
1290 cause boot problems. If you encounter such problems, boot in
1291 single user mode, remove that script from the */rc.d directory.
1292 Please report the problem to the port's maintainer, and the
1293 freebsd-ports@freebsd.org mailing list.
1296 The nodev mount option was deprecated in RELENG_6 (where it
1297 was a no-op), and is now unsupported. If you have nodev or dev listed
1298 in /etc/fstab, remove it, otherwise it will result in a mount error.
1301 ABI between ipfw(4) and ipfw(8) has been changed. You need
1302 to rebuild ipfw(8) when rebuilding kernel.
1305 rp(4)'s device files now contain the unit number.
1306 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1309 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1310 Its /etc/rc.conf.d configuration file has been `ppp' from
1311 the beginning, and hence there is no need to touch it.
1314 Now most modules get their build-time options from the kernel
1315 configuration file. A few modules still have fixed options
1316 due to their non-conformant implementation, but they will be
1317 corrected eventually. You may need to review the options of
1318 the modules in use, explicitly specify the non-default options
1319 in the kernel configuration file, and rebuild the kernel and
1323 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1324 to turn polling(4) on your interfaces.
1327 The old bridge(4) implementation was retired. The new
1328 if_bridge(4) serves as a full functional replacement.
1331 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1332 to conform to POSIX-2001. This change broke an ABI
1333 compatibility on 64 bit architecture. You have to recompile
1334 userland programs that use getaddrinfo(3) on 64 bit
1338 RELENG_6 branched here.
1341 The pccard_ifconfig rc.conf variable has been removed and a new
1342 variable, ifconfig_DEFAULT has been introduced. Unlike
1343 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1344 do not have ifconfig_ifn entries rather than just those in
1345 removable_interfaces.
1348 Some previous versions of PAM have permitted the use of
1349 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1350 to third party PAM modules in /usr/local/lib. A change has been
1351 made to require the use of absolute paths in order to avoid
1352 ambiguity and dependence on library path configuration, which may
1353 affect existing configurations.
1356 Major changes to network interface API. All drivers must be
1357 recompiled. Drivers not in the base system will need to be
1358 updated to the new APIs.
1361 Changes were made to kinfo_proc in sys/user.h. Please recompile
1362 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1363 will not behave correctly.
1365 The API and ABI for hwpmc(4) have changed with the addition
1366 of sampling support. Please recompile lib/libpmc(3) and
1367 usr.sbin/{pmcstat,pmccontrol}.
1370 The OpenBSD dhclient was imported in place of the ISC dhclient
1371 and the network interface configuration scripts were updated
1372 accordingly. If you use DHCP to configure your interfaces, you
1373 must now run devd. Also, DNS updating was lost so you will need
1374 to find a workaround if you use this feature.
1376 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1377 sure to run mergemaster -p (like you are supposed to do every time
1381 if_bridge was added to the tree. This has changed struct ifnet.
1382 Please recompile userland and all network related modules.
1385 The n_net of a struct netent was changed to an uint32_t, and
1386 1st argument of getnetbyaddr() was changed to an uint32_t, to
1387 conform to POSIX-2001. These changes broke an ABI
1388 compatibility on 64 bit architecture. With these changes,
1389 shlib major of libpcap was bumped. You have to recompile
1390 userland programs that use getnetbyaddr(3), getnetbyname(3),
1391 getnetent(3) and/or libpcap on 64 bit architecture.
1394 Kernel parsing of extra options on '#!' first lines of shell
1395 scripts has changed. Lines with multiple options likely will
1396 fail after this date. For full details, please see
1397 http://people.freebsd.org/~gad/Updating-20050528.txt
1400 The packet filter (pf) code has been updated to OpenBSD 3.7
1401 Please note the changed anchor syntax and the fact that
1402 authpf(8) now needs a mounted fdescfs(5) to function.
1405 The NO_MIXED_MODE kernel option has been removed from the i386
1406 amd64 platforms as its use has been superceded by the new local
1407 APIC timer code. Any kernel config files containing this option
1411 The on-disk format of LC_CTYPE files was changed to be machine
1412 independent. Please make sure NOT to use NO_CLEAN buildworld
1413 when crossing this point. Crossing this point also requires
1414 recompile or reinstall of all locale depended packages.
1417 The ifi_epoch member of struct if_data has been changed to
1418 contain the uptime at which the interface was created or the
1419 statistics zeroed rather then the wall clock time because
1420 wallclock time may go backwards. This should have no impact
1421 unless an snmp implementation is using this value (I know of
1422 none at this point.)
1425 The acpi_perf and acpi_throttle drivers are now part of the
1426 acpi(4) main module. They are no longer built separately.
1429 The layout of struct image_params has changed. You have to
1430 recompile all compatibility modules (linux, svr4, etc) for use
1431 with the new kernel.
1434 The p4tcc driver has been merged into cpufreq(4). This makes
1435 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1436 compile in "device cpufreq" to restore this functionality.
1439 The responsibility of recomputing the file system summary of
1440 a SoftUpdates-enabled dirty volume has been transferred to the
1441 background fsck. A rebuild of fsck(8) utility is recommended
1442 if you have updated the kernel.
1444 To get the old behavior (recompute file system summary at mount
1445 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1446 mounting the new volume.
1449 The cpufreq import is complete. As part of this, the sysctls for
1450 acpi(4) throttling have been removed. The power_profile script
1451 has been updated, so you can use performance/economy_cpu_freq in
1452 rc.conf(5) to set AC on/offline cpu frequencies.
1455 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1456 requires recompiling libnetgraph and userland netgraph utilities.
1459 Support for abbreviated forms of a number of ipfw options is
1460 now deprecated. Warnings are printed to stderr indicating the
1461 correct full form when a match occurs. Some abbreviations may
1462 be supported at a later date based on user feedback. To be
1463 considered for support, abbreviations must be in use prior to
1464 this commit and unlikely to be confused with current key words.
1467 By a popular demand, a lot of NOFOO options were renamed
1468 to NO_FOO (see bsd.compat.mk for a full list). The old
1469 spellings are still supported, but will cause annoying
1470 warnings on stderr. Make sure you upgrade properly (see
1471 the COMMON ITEMS: section later in this file).
1474 Auto-loading of ancillary wlan modules such as wlan_wep has
1475 been temporarily disabled; you need to statically configure
1476 the modules you need into your kernel or explicitly load them
1477 prior to use. Specifically, if you intend to use WEP encryption
1478 with an 802.11 device load/configure wlan_wep; if you want to
1479 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1480 and wlan_xauth as required.
1483 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1484 (``enable lqr''), older versions would revert to LCP ECHO mode on
1485 negotiation failure. Now, ``enable echo'' is required for this
1486 behaviour. The ppp version number has been bumped to 3.4.2 to
1490 The wlan support has been updated to split the crypto support
1491 into separate modules. For static WEP you must configure the
1492 wlan_wep module in your system or build and install the module
1493 in place where it can be loaded (the kernel will auto-load
1494 the module when a wep key is configured).
1497 The ath driver has been updated to split the tx rate control
1498 algorithm into a separate module. You need to include either
1499 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1502 Support for systems with an 80386 CPU has been removed. Please
1503 use FreeBSD 5.x or earlier on systems with an 80386.
1506 We have had a hack which would mount the root filesystem
1507 R/W if the device were named 'md*'. As part of the vnode
1508 work I'm doing I have had to remove this hack. People
1509 building systems which use preloaded MD root filesystems
1510 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1511 their /etc/rc scripts.
1514 FreeBSD 5.3 shipped here.
1517 The size of struct tcpcb has changed again due to the removal
1518 of RFC1644 T/TCP. You have to recompile userland programs that
1519 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1522 The size of struct tcpcb has changed. You have to recompile
1523 userland programs that read kmem for tcp sockets directly
1524 (netstat, sockstat, etc.)
1527 RELENG_5 branched here. For older entries, please see updating
1528 in the RELENG_5 branch.
1534 Avoid using make -j when upgrading. From time to time in the
1535 past there have been problems using -j with buildworld and/or
1536 installworld. This is especially true when upgrading between
1537 "distant" versions (eg one that cross a major release boundary
1538 or several minor releases, or when several months have passed
1539 on the -current branch).
1541 Sometimes, obscure build problems are the result of environment
1542 poisoning. This can happen because the make utility reads its
1543 environment when searching for values for global variables.
1544 To run your build attempts in an "environmental clean room",
1545 prefix all make commands with 'env -i '. See the env(1) manual
1546 page for more details.
1548 When upgrading from one major version to another it is generally
1549 best to upgrade to the latest code in the currently installed branch
1550 first, then do an upgrade to the new branch. This is the best-tested
1551 upgrade path, and has the highest probability of being successful.
1552 Please try this approach before reporting problems with a major
1557 If you are updating from a prior version of FreeBSD (even one just
1558 a few days old), you should follow this procedure. It is the most
1559 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1561 make kernel-toolchain
1562 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1563 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1565 To test a kernel once
1566 ---------------------
1567 If you just want to boot a kernel once (because you are not sure
1568 if it works, or if you want to boot a known bad kernel to provide
1569 debugging information) run
1570 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1571 nextboot -k testkernel
1573 To just build a kernel when you know that it won't mess you up
1574 --------------------------------------------------------------
1575 This assumes you are already running a 5.X system. Replace
1576 ${arch} with the architecture of your machine (e.g. "i386",
1577 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1579 cd src/sys/${arch}/conf
1580 config KERNEL_NAME_HERE
1581 cd ../compile/KERNEL_NAME_HERE
1586 If this fails, go to the "To build a kernel" section.
1588 To rebuild everything and install it on the current system.
1589 -----------------------------------------------------------
1590 # Note: sometimes if you are running current you gotta do more than
1591 # is listed here if you are upgrading from a really old current.
1593 <make sure you have good level 0 dumps>
1595 make kernel KERNCONF=YOUR_KERNEL_HERE
1597 <reboot in single user> [3]
1605 To cross-install current onto a separate partition
1606 --------------------------------------------------
1607 # In this approach we use a separate partition to hold
1608 # current's root, 'usr', and 'var' directories. A partition
1609 # holding "/", "/usr" and "/var" should be about 2GB in
1612 <make sure you have good level 0 dumps>
1615 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1616 <maybe newfs current's root partition>
1617 <mount current's root partition on directory ${CURRENT_ROOT}>
1618 make installworld DESTDIR=${CURRENT_ROOT}
1619 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1620 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1621 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1622 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1623 <reboot into current>
1624 <do a "native" rebuild/install as described in the previous section>
1625 <maybe install compatibility libraries from ports/misc/compat*>
1629 To upgrade in-place from 5.x-stable to current
1630 ----------------------------------------------
1631 <make sure you have good level 0 dumps>
1633 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1635 <reboot in single user> [3]
1642 Make sure that you've read the UPDATING file to understand the
1643 tweaks to various things you need. At this point in the life
1644 cycle of current, things change often and you are on your own
1645 to cope. The defaults can also change, so please read ALL of
1646 the UPDATING entries.
1648 Also, if you are tracking -current, you must be subscribed to
1649 freebsd-current@freebsd.org. Make sure that before you update
1650 your sources that you have read and understood all the recent
1651 messages there. If in doubt, please track -stable which has
1652 much fewer pitfalls.
1654 [1] If you have third party modules, such as vmware, you
1655 should disable them at this point so they don't crash your
1658 [3] From the bootblocks, boot -s, and then do
1663 adjkerntz -i # if CMOS is wall time
1664 Also, when doing a major release upgrade, it is required that
1665 you boot into single user mode to do the installworld.
1667 [4] Note: This step is non-optional. Failure to do this step
1668 can result in a significant reduction in the functionality of the
1669 system. Attempting to do it by hand is not recommended and those
1670 that pursue this avenue should read this file carefully, as well
1671 as the archives of freebsd-current and freebsd-hackers mailing lists
1672 for potential gotchas.
1674 [5] Usually this step is a noop. However, from time to time
1675 you may need to do this if you get unknown user in the following
1676 step. It never hurts to do it all the time. You may need to
1677 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1678 install) after the buildworld before this step if you last updated
1679 from current before 20020224 or from -stable before 20020408.
1681 [8] In order to have a kernel that can run the 4.x binaries
1682 needed to do an installworld, you must include the COMPAT_FREEBSD4
1683 option in your kernel. Failure to do so may leave you with a system
1684 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1685 is required to run the 5.x binaries on more recent kernels.
1687 Make sure that you merge any new devices from GENERIC since the
1688 last time you updated your kernel config file.
1690 [9] When checking out sources, you must include the -P flag to have
1691 cvs prune empty directories.
1693 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1694 "?=" instead of the "=" assignment operator, so that buildworld can
1695 override the CPUTYPE if it needs to.
1697 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1698 not on the command line, or in /etc/make.conf. buildworld will
1699 warn if it is improperly defined.
1702 This file contains a list, in reverse chronological order, of major
1703 breakages in tracking -current. Not all things will be listed here,
1704 and it only starts on October 16, 2004. Updating files can found in
1705 previous releases if your system is older than this.
1707 Copyright information:
1709 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1711 Redistribution, publication, translation and use, with or without
1712 modification, in full or in part, in any form or format of this
1713 document are permitted without further permission from the author.
1715 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1716 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1717 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1718 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1719 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1720 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1721 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1722 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1723 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1724 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1725 POSSIBILITY OF SUCH DAMAGE.
1727 If you find this document useful, and you want to, you may buy the
1730 Contact Warner Losh if you have any questions about your use of