UPDATING revision 271305
11553SrgrimesUpdating Information for FreeBSD current users 21553Srgrimes 31553SrgrimesThis file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>. 41553SrgrimesSee end of file for further details. For commonly done items, please see the 51553SrgrimesCOMMON ITEMS: section later in the file. These instructions assume that you 61553Srgrimesbasically know what you are doing. If not, then please consult the FreeBSD 71553Srgrimeshandbook: 81553Srgrimes 91553Srgrimes http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html 101553Srgrimes 111553SrgrimesItems affecting the ports and packages system can be found in 121553Srgrimes/usr/ports/UPDATING. Please read that file before running portupgrade. 131553Srgrimes 141553Srgrimes20140909: p1 FreeBSD-SA-14:18.openssl 151553Srgrimes Fix OpenSSL multiple vulnerabilities. [SA-14:18] 161553Srgrimes 171553Srgrimes20140716: 181553Srgrimes 9.3-RELEASE. 191553Srgrimes 201553Srgrimes20140608: 211553Srgrimes On i386 and amd64 systems, the onifconsole flag is now set by default 221553Srgrimes in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 231553Srgrimes as a login TTY if it is set in the bootloader as an active kernel 241553Srgrimes console. No changes in behavior should result otherwise. To revert to 251553Srgrimes the previous behavior, set ttyu0 to "off" in /etc/ttys. 261553Srgrimes 271553Srgrimes20140512: 281553Srgrimes Clang and llvm have been upgraded to 3.4.1 release. 291553Srgrimes 301553Srgrimes20140321: 3130602Scharnier Clang and llvm have been upgraded to 3.4 release. 321553Srgrimes 331553Srgrimes20140216: 341553Srgrimes The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 351553Srgrimes been deprecated and will not be part of FreeBSD 11.0 and later 361553Srgrimes releases. If you use this driver, please consider switching to 3730602Scharnier the nfe(4) driver instead. 3830602Scharnier 3930602Scharnier20131216: 406284Swollman The behavior of gss_pseudo_random() for the krb5 mechanism 4150476Speter has changed, for applications requesting a longer random string 421553Srgrimes than produced by the underlying enctype's pseudo-random() function. 431553Srgrimes In particular, the random string produced from a session key of 4491217Sbde enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 4591217Sbde be different at the 17th octet and later, after this change. 4691217Sbde The counter used in the PRF+ construction is now encoded as a 471553Srgrimes big-endian integer in accordance with RFC 4402. 481553Srgrimes __FreeBSD_version is bumped to 902505. 49109097Sdillon 501553Srgrimes20130930: 5130602Scharnier 9.2-RELEASE. 5230602Scharnier 531553Srgrimes20130823: 54170287Sdwmalone Behavior of devfs rules path matching has been changed. 55122233Sdes Pattern is now always matched against fully qualified devfs 561553Srgrimes path and slash characters must be explicitly matched by 571553Srgrimes slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 581553Srgrimes subdirectories must be reviewed. 5930602Scharnier 601553Srgrimes20130705: 61150167Srwatson hastctl(8)'s `status' command output changed to terse one-liner format. 62150167Srwatson Scripts using this should switch to `list' command or be rewritten. 631553Srgrimes 6412946Sphk20130618: 6512946Sphk Fix a bug that allowed a tracing process (e.g. gdb) to write 6612946Sphk to a memory-mapped file in the traced process's address space 67170512Sdwmalone even if neither the traced process nor the tracing process had 6812946Sphk write access to that file. 691553Srgrimes 70170512Sdwmalone20130605: 71161951Sume Added ZFS TRIM support which is enabled by default. To disable 7288696Sphk ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 7312946Sphk 7412946Sphk Creating new ZFS pools and adding new devices to existing pools 7512946Sphk first performs a full device level TRIM which can take a significant 761553Srgrimes amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 7777330Sdes to disable this behaviour. 78152995Sru 79152995Sru ZFS TRIM requires the underlying device support BIO_DELETE which 8012946Sphk is currently provided by methods such as ATA TRIM and SCSI UNMAP 8112946Sphk via CAM, which are typically supported by SSD's. 821553Srgrimes 831553Srgrimes Stats for ZFS TRIM can be monitored by looking at the sysctl's 8412946Sphk under kstat.zfs.misc.zio_trim. 851553Srgrimes 8612946Sphk20130524: 87122233Sdes `list' command has been added to hastctl(8). For now, it is full 88122233Sdes equivalent of `status' command. 8912946Sphk WARNING: in the near future the output of hastctl's status command 9012946Sphk will change to more terse format. If you use `hastctl status' 911553Srgrimes for parsing in your scripts, switch to `hastctl list'. 92150167Srwatson 931553Srgrimes20130430: 9471034Sdes The mergemaster command now uses the default MAKEOBJDIRPREFIX 9577330Sdes rather than creating it's own in the temporary directory in 9677330Sdes order allow access to bootstrapped versions of tools such as 9771034Sdes install and mtree. When upgrading from version of FreeBSD where 9871034Sdes the install command does not support -l, you will need to 9971034Sdes install a new mergemaster command if mergemaster -p is required. 10071034Sdes This can be accomplished with the command (cd src/usr.sbin/mergemaster 10171034Sdes && make install). 10271034Sdes 10371034Sdes Due to the use of the new -l option to install(1) during build 10488006Sluigi and install, you must take care not to directly set the INSTALL 10588006Sluigi make variable in your /etc/make.conf, /etc/src.conf, or on the 10688006Sluigi command line. If you wish to use the -C flag for all installs 10785747Stobez you may be able to add INSTALL+=-C to /etc/make.conf or 10885747Stobez /etc/src.conf. 10985747Stobez 110122233Sdes20130429: 111122233Sdes Fix a bug that allows NFS clients to issue READDIR on files. 112122233Sdes 11371034Sdes20130315: 11471034Sdes The install(1) option -M has changed meaning and now takes an 11571034Sdes argument that is a file or path to append logs to. In the 11671034Sdes unlikely event that -M was the last option on the command line 11771034Sdes and the command line contained at least two files and a target 11871034Sdes directory the first file will have logs appended to it. The -M 11977330Sdes option served little practical purpose in the last decade so it's 12077330Sdes used expected to be extremely rare. 12177330Sdes 122150167Srwatson20130225: 123150167Srwatson A new compression method (lz4) has been merged to. Please refer to 124150167Srwatson zpool-features(7) for more information. 12571034Sdes 12677330Sdes Please refer to the "ZFS notes" section of this file for information 12777330Sdes on upgrading boot ZFS pools. 12871034Sdes 12971034Sdes20121224: 13077330Sdes The VFS KBI was changed with the merge of several nullfs 13177330Sdes optimizations and fixes. All filesystem modules must be 13271034Sdes recompiled. 13377330Sdes 13477330Sdes20121218: 13577330Sdes With the addition of auditdistd(8), a new auditdistd user is now 13671034Sdes depended on during installworld. "mergemaster -p" can be used to add 13771034Sdes the user prior to installworld, as documented in the handbook. 1381553Srgrimes 1391553Srgrimes20121205: 1401553Srgrimes 9.1-RELEASE. 1411553Srgrimes 1421553Srgrimes20121129: 14377330Sdes A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 14442456Sdes Starting with this version the old system of ZFS pool versioning 14577330Sdes is superseded by "feature flags". This concept enables forward 14677330Sdes compatibility against certain future changes in functionality of ZFS 1471553Srgrimes pools. The first two read-only compatible "feature flags" for ZFS 1481553Srgrimes pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 1491553Srgrimes For more information read the new zpool-features(7) manual page. 15012946Sphk Please refer to the "ZFS notes" section of this file for information 1511553Srgrimes on upgrading boot ZFS pools. 1521553Srgrimes 1531553Srgrimes20121114: 1541553Srgrimes The commit introducing bsd.compiler.mk breaks the traditional 1551553Srgrimes building of kernels before this point. Add -m ${SRC}/share/mk 1561553Srgrimes (for the right value of SRC) to your command lines to work 1571553Srgrimes around; update your useland to a point after this; or use the 1581553Srgrimes buildkernel/installkernel top-level targets. See also 20120829. 15912946Sphk 16012946Sphk20121102: 1611553Srgrimes The IPFIREWALL_FORWARD kernel option has been removed. Its 16212946Sphk functionality now turned on by default. 1631553Srgrimes 16478434Spirzyk20120913: 16578434Spirzyk The random(4) support for the VIA hardware random number 16678434Spirzyk generator (`PADLOCK') is no longer enabled unconditionally. 16778434Spirzyk Add the PADLOCK_RNG option in the custom kernel config if 16878434Spirzyk needed. The GENERIC kernels on i386 and amd64 do include the 1691553Srgrimes option, so the change only affects the custom kernel 1701553Srgrimes configurations. 171116383Srwatson 17212946Sphk20120829: 1731553Srgrimes The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 1741553Srgrimes the traditional method, you must update your system with an installworld 175140818Sssouhlal before the kernel will build. The documented make buildkernel/installkernel 176140818Sssouhlal interfaces (coupled with fresh make kernel-toolchain) continue to work. 1771553Srgrimes 1781553Srgrimes20120727: 1791553Srgrimes The sparc64 ZFS loader has been changed to no longer try to auto- 1801553Srgrimes detect ZFS providers based on diskN aliases but now requires these 1811553Srgrimes to be explicitly listed in the OFW boot-device environment variable. 1821553Srgrimes 1831553Srgrimes20120422: 1841553Srgrimes Now unix domain sockets behave "as expected" on nullfs(5). Previously 18512946Sphk nullfs(5) did not pass through all behaviours to the underlying layer, 1861553Srgrimes as a result if we bound to a socket on the lower layer we could connect 187150167Srwatson only to the lower path; if we bound to the upper layer we could connect 188150167Srwatson only to the upper path. The new behavior is one can connect to both the 189150167Srwatson lower and the upper paths regardless what layer path one binds to. 190150167Srwatson 191150167Srwatson20120109: 192150167Srwatson The acpi_wmi(4) status device /dev/wmistat has been renamed to 1931553Srgrimes /dev/wmistat0. 19488696Sphk 19530602Scharnier20120106: 1961553Srgrimes A new VOP_ADVISE() was added to support posix_fadvise(2). All 19777330Sdes filesystem modules must be recompiled. 19812946Sphk 199144998Smdodd20120106: 200144998Smdodd The interface of the VOP_VPTOCNP(9) changed, now the returned 201144998Smdodd vnode shall be referenced, previously it was required to be 202144998Smdodd only held. All in-tree filesystems are converted. 203144998Smdodd 20412946Sphk20120106: 20512946Sphk 9.0-RELEASE. 20612946Sphk 20712946Sphk20111101: 20812946Sphk The broken amd(4) driver has been replaced with esp(4) in the amd64, 2091553Srgrimes i386 and pc98 GENERIC kernel configuration files. 21012946Sphk 21112946Sphk20110913: 21212946Sphk This commit modifies vfs_register() so that it uses a hash 2131553Srgrimes calculation to set vfc_typenum, which is enabled by default. 214121849Ssilby The first time a system is booted after this change, the 215121306Ssilby vfc_typenum values will change for all file systems. The 216121849Ssilby main effect of this is a change to the NFS server file handles 217121849Ssilby for file systems that use vfc_typenum in their fsid, such as ZFS. 218121306Ssilby It will, however, prevent vfc_typenum from changing when file 219121306Ssilby systems are loaded in a different order for subsequent reboots. 220121849Ssilby To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 221121306Ssilby until you are ready to remount all NFS clients after a reboot. 222116383Srwatson 223116383Srwatson20110828: 224116383Srwatson Bump the shared library version numbers for libraries that 225116383Srwatson do not use symbol versioning, have changed the ABI compared 226126472Sdd to stable/8 and which shared library version was not bumped. 227126472Sdd Done as part of 9.0-RELEASE cycle. 228116383Srwatson 229116383Srwatson20110815: 230116383Srwatson During the merge of Capsicum features, the fget(9) KPI was modified. 231122234Sdes This may require the rebuilding of out-of-tree device drivers -- 23212946Sphk issues have been reported specifically with the nVidia device driver. 23312946Sphk __FreeBSD_version is bumped to 900041. 234161951Sume 235170512Sdwmalone Also, there is a period between 20110811 and 20110814 where the 236161951Sume special devices /dev/{stdin,stdout,stderr} did not work correctly. 237161951Sume Building world from a kernel during that window may not work. 238161951Sume 239161951Sume20110628: 240161951Sume The packet filter (pf) code has been updated to OpenBSD 4.5. 241161951Sume You need to update userland tools to be in sync with kernel. 242161951Sume This update breaks backward compatibility with earlier pfsync(4) 243161951Sume versions. Care must be taken when updating redundant firewall setups. 244161951Sume 24512946Sphk20110608: 24677928Sdd The following sysctls and tunables are retired on x86 platforms: 2471553Srgrimes machdep.hlt_cpus 24878434Spirzyk machdep.hlt_logical_cpus 249116383Srwatson The following sysctl is retired: 250116383Srwatson machdep.hyperthreading_allowed 251116383Srwatson The sysctls were supposed to provide a way to dynamically offline and 252116383Srwatson online selected CPUs on x86 platforms, but the implementation has not 25378434Spirzyk been reliable especially with SCHED_ULE scheduler. 254170512Sdwmalone machdep.hyperthreading_allowed tunable is still available to ignore 25512946Sphk hyperthreading CPUs at OS level. 25678434Spirzyk Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 257116383Srwatson where X is an APIC ID of a CPU. Be advised, though, that disabling 258116383Srwatson CPUs in non-uniform fashion will result in non-uniform topology and 259116383Srwatson may lead to sub-optimal system performance with SCHED_ULE, which is 260116383Srwatson a default scheduler. 26178434Spirzyk 262170512Sdwmalone20110607: 26378434Spirzyk cpumask_t type is retired and cpuset_t is used in order to describe 26478434Spirzyk a mask of CPUs. 265116383Srwatson 266116383Srwatson20110531: 267116383Srwatson Changes to ifconfig(8) for dynamic address family detection mandate 268116383Srwatson that you are running a kernel of 20110525 or later. Make sure to 26978434Spirzyk follow the update procedure to boot a new kernel before installing 270170512Sdwmalone world. 27178434Spirzyk 27212946Sphk20110513: 27312946Sphk Support for sun4v architecture is officially dropped 27412946Sphk 27512946Sphk20110503: 27612946Sphk Several KPI breaking changes have been committed to the mii(4) layer, 27777928Sdd the PHY drivers and consequently some Ethernet drivers using mii(4). 27812946Sphk This means that miibus.ko and the modules of the affected Ethernet 27988696Sphk drivers need to be recompiled. 28088696Sphk 281170512Sdwmalone Note to kernel developers: Given that the OUI bit reversion problem 28288696Sphk was fixed as part of these changes all mii(4) commits related to OUIs, 28388696Sphk i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 28488696Sphk handling, no longer can be merged verbatim to stable/8 and previous 28512946Sphk branches. 28612946Sphk 28731214Sjdp20110430: 28831214Sjdp Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 2891553Srgrimes into their kernel configurations along with 'device pci'. 2901553Srgrimes 29112946Sphk20110427: 29212946Sphk The default NFS client is now the new NFS client, so fstype "newnfs" 29312946Sphk is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 29412946Sphk Although mounts via fstype "nfs" will usually work without userland 29512946Sphk changes, it is recommended that the mount(8) and mount_nfs(8) 29612946Sphk commands be rebuilt from sources and that a link to mount_nfs called 297122234Sdes mount_oldnfs be created. The new client is compiled into the 29812946Sphk kernel with "options NFSCL" and this is needed for diskless root 29912946Sphk file systems. The GENERIC kernel configs have been changed to use 300122234Sdes NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 30112946Sphk To use the regular/old client, you can "mount -t oldnfs ...". For 30212946Sphk a diskless root file system, you must also include a line like: 303122234Sdes 30412946Sphk vfs.root.mountfrom="oldnfs:" 30512946Sphk 30630602Scharnier in the boot/loader.conf on the root fs on the NFS server to make 30712946Sphk a diskless root fs use the old client. 30812946Sphk 30912946Sphk20110424: 31012946Sphk The GENERIC kernels for all architectures now default to the new 31112946Sphk CAM-based ATA stack. It means that all legacy ATA drivers were 31212946Sphk removed and replaced by respective CAM drivers. If you are using 31312946Sphk ATA device names in /etc/fstab or other places, make sure to update 31412946Sphk them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 31512946Sphk where 'Y's are the sequential numbers starting from zero for each type 31612946Sphk in order of detection, unless configured otherwise with tunables, 31712946Sphk see cam(4)). There will be symbolic links created in /dev/ to map 31812946Sphk old adX devices to the respective adaY. They should provide basic 31912946Sphk compatibility for file systems mounting in most cases, but they do 3201553Srgrimes not support old user-level APIs and do not have respective providers 32112946Sphk in GEOM. Consider using updated management tools with new device names. 3221553Srgrimes 32312946Sphk It is possible to load devices ahci, ata, siis and mvs as modules, 32412946Sphk but option ATA_CAM should remain in kernel configuration to make ata 32512946Sphk module work as CAM driver supporting legacy ATA controllers. Device ata 32612946Sphk still can be used in modular fashion (atacore + ...). Modules atadisk 327170512Sdwmalone and atapi* are not used and won't affect operation in ATA_CAM mode. 32897232Salfred Note that to use CAM-based ATA kernel should include CAM devices 32997232Salfred scbus, pass, da (or explicitly ada), cd and optionally others. All of 33097232Salfred them are parts of the cam module. 33197232Salfred 332122233Sdes ataraid(4) functionality is now supported by the RAID GEOM class. 333122233Sdes To use it you can load geom_raid kernel module and use graid(8) tool 33494752Sphk for management. Instead of /dev/arX device names, use /dev/raid/rX. 33512946Sphk 33612946Sphk No kernel config options or code have been removed, so if a problem 3371553Srgrimes arises, please report it and optionally revert to the old ATA stack. 33812946Sphk In order to do it you can remove from the kernel config: 33912946Sphk options ATA_CAM 34012946Sphk device ahci 34112946Sphk device mvs 3428857Srgrimes device siis 34397232Salfred , and instead add back: 34497232Salfred device atadisk # ATA disk drives 34597232Salfred device ataraid # ATA RAID drives 34697232Salfred device atapicd # ATAPI CDROM drives 347122233Sdes device atapifd # ATAPI floppy drives 34812946Sphk device atapist # ATAPI tape drives 34912946Sphk 35012946Sphk20110423: 35112946Sphk The default NFS server has been changed to the new server, which 35212946Sphk was referred to as the experimental server. If you need to switch 3531553Srgrimes back to the old NFS server, you must now put the "-o" option on 35412946Sphk both the mountd and nfsd commands. This can be done using the 35512946Sphk mountd_flags and nfs_server_flags rc.conf variables until an 35612946Sphk update to the rc scripts is committed, which is coming soon. 35712946Sphk 35837266Sbde20110418: 35912946Sphk The GNU Objective-C runtime library (libobjc), and other Objective-C 3601553Srgrimes related components have been removed from the base system. If you 36197232Salfred require an Objective-C library, please use one of the available ports. 36297232Salfred 36397232Salfred20110331: 36497232Salfred ath(4) has been split into bus- and device- modules. if_ath contains 365122233Sdes the HAL, the TX rate control and the network device code. if_ath_pci 366122233Sdes contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 36712946Sphk contains the AHB glue. Users need to load both if_ath_pci and if_ath 36837266Sbde in order to use ath on everything else. 36937266Sbde 37012946Sphk TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 37112946Sphk need to load if_ath and if_ath_pci for ath(4) operation. 37212946Sphk 37312946Sphk20110314: 37412946Sphk As part of the replacement of sysinstall, the process of building 37512946Sphk release media has changed significantly. For details, please re-read 3761553Srgrimes release(7), which has been updated to reflect the new build process. 37712946Sphk 378109097Sdillon20110218: 379109097Sdillon GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 380109097Sdillon is the last available version under GPLv2. It brings a number of new 381109113Sdillon features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 382109097Sdillon 4.1 and SSE 4.2), better support for powerpc64, a number of new 383109097Sdillon directives, and lots of other small improvements. See the ChangeLog 384109097Sdillon file in contrib/binutils for the full details. 385109097Sdillon 386109097Sdillon20110218: 387109097Sdillon IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 388109113Sdillon compliant, and will now use half of hash for authentication. 389109113Sdillon This will break interoperability with all stacks (including all 390109113Sdillon actual FreeBSD versions) who implement 391109097Sdillon draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 392109113Sdillon authentication). 393164718Sru The only workaround with such peers is to use another HMAC 394164718Sru algorithm for IPsec ("phase 2") authentication. 395109113Sdillon 396109113Sdillon20110207: 397164718Sru Remove the uio_yield prototype and symbol. This function has 398164718Sru been misnamed since it was introduced and should not be 399164718Sru globally exposed with this name. The equivalent functionality 400164718Sru is now available using kern_yield(curthread->td_user_pri). 401164718Sru The function remains undocumented. 402164718Sru 403164718Sru20110112: 404164718Sru A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 405164718Sru symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 406122234Sdes for scalar sysctls is defined but disabled. Code that needs 407109097Sdillon UQUAD to pass the type checking that must compile on older 408109097Sdillon systems where the define is not present can check against 409109097Sdillon __FreeBSD_version >= 900030. 410109097Sdillon 41112946Sphk The system dialog(1) has been replaced with a new version previously 41212946Sphk in ports as devel/cdialog. dialog(1) is mostly command-line compatible 41312946Sphk with the previous version, but the libdialog associated with it has 414170512Sdwmalone a largely incompatible API. As such, the original version of libdialog 41597232Salfred will be kept temporarily as libodialog, until its base system consumers 41697232Salfred are replaced or updated. Bump __FreeBSD_version to 900030. 41797232Salfred 41897232Salfred20110103: 41961514Sphk If you are trying to run make universe on a -stable system, and you get 42061514Sphk the following warning: 42161514Sphk "Makefile", line 356: "Target architecture for i386/conf/GENERIC 42261514Sphk unknown. config(8) likely too old." 42361514Sphk or something similar to it, then you must upgrade your -stable system 42461514Sphk to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 42561514Sphk stable/8) or build the config from the latest stable/8 branch and 42661514Sphk install it on your system. 42712946Sphk 42812946Sphk Prior to this date, building a current universe on 8-stable system from 4291553Srgrimes between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 43088696Sphk error in the first kernel build phase. A new config on those old 431170512Sdwmalone systems will fix that problem for older versions of -current. 43288696Sphk 43388696Sphk20101228: 43488696Sphk The TCP stack has been modified to allow Khelp modules to interact with 43588696Sphk it via helper hook points and store per-connection data in the TCP 43688696Sphk control block. Bump __FreeBSD_version to 900029. User space tools that 43788696Sphk rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 43888696Sphk be recompiled. 43988696Sphk 44088696Sphk20101114: 44188696Sphk Generic IEEE 802.3 annex 31B full duplex flow control support has been 44288696Sphk added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 44388696Sphk with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 44488696Sphk to take advantage of it instead of using custom implementations. This 44588696Sphk means that these drivers now no longer unconditionally advertise 44688696Sphk support for flow control but only do so if flow control is a selected 447170512Sdwmalone media option. This was implemented in the generic support that way in 448170512Sdwmalone order to allow flow control to be switched on and off via ifconfig(8) 44988696Sphk with the PHY specific default to typically off in order to protect 45088696Sphk from unwanted effects. Consequently, if you used flow control with 451161951Sume one of the above mentioned drivers you now need to explicitly enable 452161951Sume it, for example via: 453161951Sume ifconfig bge0 media auto mediaopt flowcontrol 454161951Sume 455161951Sume Along with the above mentioned changes generic support for setting 456161951Sume 1000baseT master mode also has been added and brgphy(4), ciphy(4), 457161951Sume e1000phy(4) as well as ip1000phy(4) have been converted to take 458161951Sume advantage of it. This means that these drivers now no longer take the 459161951Sume link0 parameter for selecting master mode but the master media option 460161951Sume has to be used instead, for example like in the following: 461161951Sume ifconfig bge0 media 1000baseT mediaopt full-duplex,master 462161951Sume 463161951Sume Selection of master mode now is also available with all other PHY 464161951Sume drivers supporting 1000baseT. 465161951Sume 466161951Sume20101111: 467161951Sume The TCP stack has received a significant update to add support for 468161951Sume modularised congestion control and generally improve the clarity of 469161951Sume congestion control decisions. Bump __FreeBSD_version to 900025. User 470161951Sume space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 471161951Sume sockstat) need to be recompiled. 472161951Sume 473161951Sume20101002: 474161951Sume The man(1) utility has been replaced by a new version that no longer 475161951Sume uses /etc/manpath.config. Please consult man.conf(5) for how to 476161951Sume migrate local entries to the new format. 477161951Sume 47812946Sphk20100928: 47912946Sphk The copyright strings printed by login(1) and sshd(8) at the time of a 48012946Sphk new connection have been removed to follow other operating systems and 48112946Sphk upstream sshd. 48212946Sphk 48312946Sphk20100915: 48412946Sphk A workaround for a fixed ld bug has been removed in kernel code, 48512946Sphk so make sure that your system ld is built from sources after 4861553Srgrimes revision 210245 from 2010-07-19 (r211583 if building head kernel 48712946Sphk on stable/8, r211584 for stable/7; both from 2010-08-21). 48812946Sphk A symptom of incorrect ld version is different addresses for 48912946Sphk set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 49012946Sphk 49138533Sdfr20100913: 49238533Sdfr The $ipv6_prefer variable in rc.conf(5) has been split into 4931553Srgrimes $ip6addrctl_policy and $ipv6_activate_all_interfaces. 49412946Sphk 49512946Sphk The $ip6addrctl_policy is a variable to choose a pre-defined 4961553Srgrimes address selection policy set by ip6addrctl(8). A value 49777928Sdd "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 49812946Sphk default is "AUTO". 499122234Sdes 500170512Sdwmalone The $ipv6_activate_all_interfaces specifies whether IFDISABLED 50177928Sdd flag (see an entry of 20090926) is set on an interface with no 50212946Sphk corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 5031553Srgrimes security reason. If you want IPv6 link-local address on all 5041553Srgrimes interfaces by default, set this to "YES". 50512946Sphk 50612946Sphk The old ipv6_prefer="YES" is equivalent to 50712946Sphk ipv6_activate_all_interfaces="YES" and 50812946Sphk ip6addrctl_policy="ipv6_prefer". 50912946Sphk 51038533Sdfr20100913: 51138533Sdfr DTrace has grown support for userland tracing. Due to this, DTrace is 5121553Srgrimes now i386 and amd64 only. 51312946Sphk dtruss(1) is now installed by default on those systems and a new 51412946Sphk kernel module is needed for userland tracing: fasttrap. 51512946Sphk No changes to your kernel config file are necessary to enable 5161553Srgrimes userland tracing, but you might consider adding 'STRIP=' and 51777928Sdd 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 51812946Sphk to have informative userland stack traces in DTrace (ustack). 51912946Sphk 52030602Scharnier20100725: 5211553Srgrimes The acpi_aiboost(4) driver has been removed in favor of the new 52212946Sphk aibs(4) driver. You should update your kernel configuration file. 52312946Sphk 52412946Sphk20100722: 52512946Sphk BSD grep has been imported to the base system and it is built by 52612946Sphk default. It is completely BSD licensed, highly GNU-compatible, uses 527170512Sdwmalone less memory than its GNU counterpart and has a small codebase. 5281553Srgrimes However, it is slower than its GNU counterpart, which is mostly 5291553Srgrimes noticeable for larger searches, for smaller ones it is measurable 5301553Srgrimes but not significant. The reason is complex, the most important factor 53112946Sphk is that we lack a modern and efficient regex library and GNU 53212946Sphk overcomes this by optimizing the searches internally. Future work 53312946Sphk on improving the regex performance is planned, for the meantime, 53412946Sphk users that need better performance, can build GNU grep instead by 53512946Sphk setting the WITH_GNU_GREP knob. 5361553Srgrimes 53712946Sphk20100713: 53812946Sphk Due to the import of powerpc64 support, all existing powerpc kernel 53912946Sphk configuration files must be updated with a machine directive like this: 5401553Srgrimes machine powerpc powerpc 541162073Sru 54285747Stobez In addition, an updated config(8) is required to build powerpc kernels 54312946Sphk after this change. 544170512Sdwmalone 545170512Sdwmalone20100713: 546170512Sdwmalone A new version of ZFS (version 15) has been merged to -HEAD. 547170512Sdwmalone This version uses a python library for the following subcommands: 548170512Sdwmalone zfs allow, zfs unallow, zfs groupspace, zfs userspace. 549170512Sdwmalone For full functionality of these commands the following port must 550170512Sdwmalone be installed: sysutils/py-zfs 551170287Sdwmalone 552170287Sdwmalone20100429: 55338533Sdfr 'vm_page's are now hashed by physical address to an array of mutexes. 55412946Sphk Currently this is only used to serialize access to hold_count. Over 55577332Sdes time the page queue mutex will be peeled away. This changes the size 5561553Srgrimes of pmap on every architecture. And requires all callers of vm_page_hold 557144997Smdodd and vm_page_unhold to be updated. 558144997Smdodd 55942456Sdes20100402: 56042456Sdes WITH_CTF can now be specified in src.conf (not recommended, there 56142456Sdes are some problems with static executables), make.conf (would also 56242456Sdes affect ports which do not use GNU make and do not override the 56377928Sdd compile targets) or in the kernel config (via "makeoptions 56442456Sdes WITH_CTF=yes"). 56542456Sdes When WITH_CTF was specified there before this was silently ignored, 56642456Sdes so make sure that WITH_CTF is not used in places which could lead 56742456Sdes to unwanted behavior. 56871034Sdes 56971034Sdes20100311: 57071034Sdes The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 57171034Sdes to allow 32-bit compatibility on non-x86 platforms. All kernel 57271034Sdes configurations on amd64 and ia64 platforms using these options must 57385747Stobez be modified accordingly. 57485747Stobez 57585747Stobez20100113: 57685747Stobez The utmp user accounting database has been replaced with utmpx, 57785747Stobez the user accounting interface standardized by POSIX. 57888006Sluigi Unfortunately the semantics of utmp and utmpx don't match, 57988006Sluigi making it practically impossible to support both interfaces. 58088006Sluigi The user accounting database is used by tools like finger(1), 58188006Sluigi last(1), talk(1), w(1) and ac(8). 58288006Sluigi 58388006Sluigi All applications in the base system use utmpx. This means only 58488006Sluigi local binaries (e.g. from the ports tree) may still use these 58588006Sluigi utmp database files. These applications must be rebuilt to make 58688006Sluigi use of utmpx. 58712946Sphk 58812946Sphk After the system has been upgraded, it is safe to remove the old 58912946Sphk log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 59012946Sphk assuming their contents is of no importance anymore. Old wtmp 59112946Sphk databases can only be used by last(1) and ac(8) after they have 592162073Sru been converted to the new format using wtmpcvt(1). 593162073Sru 594162073Sru20100108: 595162073Sru Introduce the kernel thread "deadlock resolver" (which can be enabled 596162073Sru via the DEADLKRES option, see NOTES for more details) and the 59712946Sphk sleepq_type() function for sleepqueues. 59812946Sphk 599162073Sru20091202: 600162073Sru The rc.firewall and rc.firewall6 were unified, and 60112946Sphk rc.firewall6 and rc.d/ip6fw were removed. 602162073Sru According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 60312946Sphk variables are obsoleted. Instead, the following new rc 60412946Sphk variables are added to rc.d/ipfw: 60512946Sphk 606162073Sru firewall_client_net_ipv6, firewall_simple_iif_ipv6, 60712946Sphk firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 6081553Srgrimes firewall_simple_onet_ipv6, firewall_trusted_ipv6 60996234Sache 61088696Sphk The meanings correspond to the relevant IPv4 variables. 61188696Sphk 61212946Sphk20091125: 61312946Sphk 8.0-RELEASE. 61412946Sphk 61512946Sphk20091113: 61685747Stobez The default terminal emulation for syscons(4) has been changed 617106829Speter from cons25 to xterm on all platforms except pc98. This means 618162073Sru that the /etc/ttys file needs to be updated to ensure correct 61912946Sphk operation of applications on the console. 620122234Sdes 62112946Sphk The terminal emulation style can be toggled per window by using 622170287Sdwmalone vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 623170287Sdwmalone options can be used to change the compile-time default back to 62412946Sphk cons25. 62585747Stobez 626170287Sdwmalone To prevent graphical artifacts, make sure the TERM environment 627170287Sdwmalone variable is set to match the terminal emulation that is being 628170287Sdwmalone performed by syscons(4). 629170287Sdwmalone 630170287Sdwmalone20091109: 63141019Sphk The layout of the structure ieee80211req_scan_result has changed. 632170287Sdwmalone Applications that require wireless scan results (e.g. ifconfig(8)) 633170287Sdwmalone from net80211 need to be recompiled. 634170287Sdwmalone 635170512Sdwmalone Applications such as wpa_supplicant(8) may require a full world 636170512Sdwmalone build without using NO_CLEAN in order to get synchronized with the 637170287Sdwmalone new structure. 638170287Sdwmalone 639170512Sdwmalone20091025: 640170512Sdwmalone The iwn(4) driver has been updated to support the 5000 and 5150 series. 641170287Sdwmalone There's one kernel module for each firmware. Adding "device iwnfw" 642170287Sdwmalone to the kernel configuration file means including all three firmware 643170512Sdwmalone images inside the kernel. If you want to include just the one for 644170512Sdwmalone your wireless card, use the devices iwn4965fw, iwn5000fw or 645170287Sdwmalone iwn5150fw. 646170287Sdwmalone 647122233Sdes20090926: 648170287Sdwmalone The rc.d/network_ipv6, IPv6 configuration script has been integrated 649170512Sdwmalone into rc.d/netif. The changes are the following: 650170287Sdwmalone 651170512Sdwmalone 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 652170287Sdwmalone for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 653161313Sru Note that both variables need the "inet6" keyword at the head. 654170512Sdwmalone 655134541Speter Do not set $ipv6_network_interfaces manually if you do not 656170512Sdwmalone understand what you are doing. It is not needed in most cases. 657134541Speter 658170512Sdwmalone $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 65941019Sphk they are obsolete. 660170287Sdwmalone 661170287Sdwmalone 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 66241019Sphk "inet6 accept_rtadv" keyword in ifconfig(8) instead. 663162073Sru 66412946Sphk If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 66512946Sphk all configured interfaces have "inet6 accept_rtadv" in the 66638533Sdfr $ifconfig_IF_ipv6. These are for backward compatibility. 66738533Sdfr 66885747Stobez 3. A new variable $ipv6_prefer has been added. If NO, IPv6 66938533Sdfr functionality of interfaces with no corresponding 670162073Sru $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 67138533Sdfr and the default address selection policy of ip6addrctl(8) 67238533Sdfr is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 67312946Sphk Note that if you want to configure IPv6 functionality on the 67412946Sphk disabled interfaces after boot, first you need to clear the flag by 67512946Sphk using ifconfig(8) like: 67677332Sdes 67777332Sdes ifconfig em0 inet6 -ifdisabled 67877332Sdes 67977332Sdes If YES, the default address selection policy is set as 68077332Sdes IPv6-preferred. 68177332Sdes 682109097Sdillon The default value of $ipv6_prefer is NO. 683109097Sdillon 68477332Sdes 4. If your system need to receive Router Advertisement messages, 68577332Sdes define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 68677332Sdes scripts automatically invoke rtsol(8) when the interface becomes 68777332Sdes UP. The Router Advertisement messages are used for SLAAC 68812946Sphk (State-Less Address AutoConfiguration). 68912946Sphk 69085747Stobez20090922: 691163275Sharti 802.11s D3.03 support was committed. This is incompatible with the 692162073Sru previous code, which was based on D3.0. 693163275Sharti 69412946Sphk20090912: 695102411Scharnier A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 69612946Sphk of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 697162073Sru control whether accepting Router Advertisement messages or not. 698162073Sru Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 69912946Sphk a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 700162073Sru The ifconfig(8) utility now supports these flags. 70112946Sphk 70285747Stobez20090910: 70312946Sphk ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 70477332Sdes mount(8) and -a option for df(1) to see them. 70512946Sphk 70677332Sdes20090825: 70712946Sphk The old tunable hw.bus.devctl_disable has been superseded by 708162073Sru hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 70912946Sphk replaced by hw.bus.devctl_queue=0. The default for this new tunable 7101553Srgrimes is 1000. 711162073Sru 71212946Sphk20090813: 7131553Srgrimes Remove the option STOP_NMI. The default action is now to use NMI only 7141553Srgrimes for KDB via the newly introduced function stop_cpus_hard() and 71512946Sphk maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 716170512Sdwmalone 7171553Srgrimes20090803: 71812946Sphk The stable/8 branch created in subversion. This corresponds to the 71938533Sdfr RELENG_8 branch in CVS. 72038533Sdfr 7211553Srgrimes20090719: 72212946Sphk Bump the shared library version numbers for all libraries that do not 72312946Sphk use symbol versioning as part of the 8.0-RELEASE cycle. Bump 72412946Sphk __FreeBSD_version to 800105. 72512946Sphk 72677928Sdd20090714: 72712946Sphk Due to changes in the implementation of virtual network stack support, 72812946Sphk all network-related kernel modules must be recompiled. As this change 72912946Sphk breaks the ABI, bump __FreeBSD_version to 800104. 73012946Sphk 73112946Sphk20090713: 73277332Sdes The TOE interface to the TCP syncache has been modified to remove 73377928Sdd struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 73412946Sphk The cxgb driver is the only TOE consumer affected by this change, and 73548956Sbillf needs to be recompiled along with the kernel. As this change breaks 73612946Sphk the ABI, bump __FreeBSD_version to 800103. 737170512Sdwmalone 73812946Sphk20090712: 73930602Scharnier Padding has been added to struct tcpcb, sackhint and tcpstat in 74048956Sbillf <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 74112946Sphk maintaining the ABI. However, this change breaks the ABI, so bump 74277928Sdd __FreeBSD_version to 800102. User space tools that rely on the size of 74312946Sphk any of these structs (e.g. sockstat) need to be recompiled. 74412946Sphk 745170512Sdwmalone20090630: 74612946Sphk The NFS_LEGACYRPC option has been removed along with the old kernel 74712946Sphk RPC implementation that this option selected. Kernel configurations 74812946Sphk may need to be adjusted. 749170512Sdwmalone 75012946Sphk20090629: 75112946Sphk The network interface device nodes at /dev/net/<interface> have been 75212946Sphk removed. All ioctl operations can be performed the normal way using 75312946Sphk routing sockets. The kqueue functionality can generally be replaced 75412946Sphk with routing sockets. 75577928Sdd 75612946Sphk20090628: 75712946Sphk The documentation from the FreeBSD Documentation Project (Handbook, 7581553Srgrimes FAQ, etc.) is now installed via packages by sysinstall(8) and under 759 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 760 76120090624: 762 The ABI of various structures related to the SYSV IPC API have been 763 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 764 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 765 800100. 766 76720090622: 768 Layout of struct vnet has changed as routing related variables were 769 moved to their own Vimage module. Modules need to be recompiled. Bump 770 __FreeBSD_version to 800099. 771 77220090619: 773 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 774 respectively. As long as no more than 16 groups per process are used, 775 no changes should be visible. When more than 16 groups are used, old 776 binaries may fail if they call getgroups() or getgrouplist() with 777 statically sized storage. Recompiling will work around this, but 778 applications should be modified to use dynamically allocated storage 779 for group arrays as POSIX.1-2008 does not cap an implementation's 780 number of supported groups at NGROUPS_MAX+1 as previous versions did. 781 782 NFS and portalfs mounts may also be affected as the list of groups is 783 truncated to 16. Users of NFS who use more than 16 groups, should 784 take care that negative group permissions are not used on the exported 785 file systems as they will not be reliable unless a GSSAPI based 786 authentication method is used. 787 78820090616: 789 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 790 option compiles in the support for adaptive spinning for lockmgrs 791 which want to enable it. The lockinit() function now accepts the flag 792 LK_ADAPTIVE in order to make the lock object subject to adaptive 793 spinning when both held in write and read mode. 794 79520090613: 796 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 797 changed. User applications that use this ioctl need to be rebuilt. 798 79920090611: 800 The layout of struct thread has changed. Kernel and modules need to 801 be rebuilt. 802 80320090608: 804 The layout of structs ifnet, domain, protosw and vnet_net has changed. 805 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 806 80720090602: 808 window(1) has been removed from the base system. It can now be 809 installed from ports. The port is called misc/window. 810 81120090601: 812 The way we are storing and accessing `routing table' entries has 813 changed. Programs reading the FIB, like netstat, need to be 814 re-compiled. 815 81620090601: 817 A new netisr implementation has been added for FreeBSD 8. Network 818 file system modules, such as igmp, ipdivert, and others, should be 819 rebuilt. 820 Bump __FreeBSD_version to 800096. 821 82220090530: 823 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 824 more valid. 825 82620090530: 827 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 828 Bump __FreeBSD_version to 800094. 829 83020090529: 831 Add mnt_xflag field to 'struct mount'. File system modules need to be 832 rebuilt. 833 Bump __FreeBSD_version to 800093. 834 83520090528: 836 The compiling option ADAPTIVE_SX has been retired while it has been 837 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 838 The KPI for sx_init_flags() changes as accepting flags: 839 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 840 been introduced in order to handle the reversed logic. 841 Bump __FreeBSD_version to 800092. 842 84320090527: 844 Add support for hierarchical jails. Remove global securelevel. 845 Bump __FreeBSD_version to 800091. 846 84720090523: 848 The layout of struct vnet_net has changed, therefore modules 849 need to be rebuilt. 850 Bump __FreeBSD_version to 800090. 851 85220090523: 853 The newly imported zic(8) produces a new format in the output. Please 854 run tzsetup(8) to install the newly created data to /etc/localtime. 855 85620090520: 857 The sysctl tree for the usb stack has renamed from hw.usb2.* to 858 hw.usb.* and is now consistent again with previous releases. 859 86020090520: 861 802.11 monitor mode support was revised and driver api's were changed. 862 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 863 of DLT_IEEE802_11. No user-visible data structures were changed but 864 applications that use DLT_IEEE802_11 may require changes. 865 Bump __FreeBSD_version to 800088. 866 86720090430: 868 The layout of the following structs has changed: sysctl_oid, 869 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 870 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 871 panics may be experienced. World rebuild is required for 872 correctly checking networking state from userland. 873 Bump __FreeBSD_version to 800085. 874 87520090429: 876 MLDv2 and Source-Specific Multicast (SSM) have been merged 877 to the IPv6 stack. VIMAGE hooks are in but not yet used. 878 The implementation of SSM within FreeBSD's IPv6 stack closely 879 follows the IPv4 implementation. 880 881 For kernel developers: 882 883 * The most important changes are that the ip6_output() and 884 ip6_input() paths no longer take the IN6_MULTI_LOCK, 885 and this lock has been downgraded to a non-recursive mutex. 886 887 * As with the changes to the IPv4 stack to support SSM, filtering 888 of inbound multicast traffic must now be performed by transport 889 protocols within the IPv6 stack. This does not apply to TCP and 890 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 891 892 * The KPIs used by IPv6 multicast are similar to those used by 893 the IPv4 stack, with the following differences: 894 * im6o_mc_filter() is analogous to imo_multicast_filter(). 895 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 896 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 897 * IN6_LOOKUP_MULTI() has been deprecated and removed. 898 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 899 for MLDv1 have an additional 'timer' argument which is used to 900 jitter the initial membership report for the solicited-node 901 multicast membership on-link. 902 * This is not strictly needed for MLDv2, which already jitters 903 its report transmissions. However, the 'timer' argument is 904 preserved in case MLDv1 is active on the interface. 905 906 * The KAME linked-list based IPv6 membership implementation has 907 been refactored to use a vector similar to that used by the IPv4 908 stack. 909 Code which maintains a list of its own multicast memberships 910 internally, e.g. carp, has been updated to reflect the new 911 semantics. 912 913 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 914 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 915 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 916 implementation constraint which needs to be addressed in HEAD. 917 918 For application developers: 919 920 * The changes are broadly similar to those made for the IPv4 921 stack. 922 923 * The use of IPv4 and IPv6 multicast socket options on the same 924 socket, using mapped addresses, HAS NOT been tested or supported. 925 926 * There are a number of issues with the implementation of various 927 IPv6 multicast APIs which need to be resolved in the API surface 928 before the implementation is fully compatible with KAME userland 929 use, and these are mostly to do with interface index treatment. 930 931 * The literature available discusses the use of either the delta / ASM 932 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 933 using setsourcefilter(3)/getsourcefilter(3). For more information 934 please refer to RFC 3768, 'Socket Interface Extensions for 935 Multicast Source Filters'. 936 937 * Applications which use the published RFC 3678 APIs should be fine. 938 939 For systems administrators: 940 941 * The mtest(8) utility has been refactored to support IPv6, in 942 addition to IPv4. Interface addresses are no longer accepted 943 as arguments, their names must be used instead. The utility 944 will map the interface name to its first IPv4 address as 945 returned by getifaddrs(3). 946 947 * The ifmcstat(8) utility has also been updated to print the MLDv2 948 endpoint state and source filter lists via sysctl(3). 949 950 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 951 loopback of IPv6 multicast datagrams by default; it defaults to 1 952 to preserve the existing behaviour. Disabling multicast loopback is 953 recommended for optimal system performance. 954 955 * The IPv6 MROUTING code has been changed to examine this sysctl 956 instead of attempting to perform a group lookup before looping 957 back forwarded datagrams. 958 959 Bump __FreeBSD_version to 800084. 960 96120090422: 962 Implement low-level Bluetooth HCI API. 963 Bump __FreeBSD_version to 800083. 964 96520090419: 966 The layout of struct malloc_type, used by modules to register new 967 memory allocation types, has changed. Most modules will need to 968 be rebuilt or panics may be experienced. 969 Bump __FreeBSD_version to 800081. 970 97120090415: 972 Anticipate overflowing inp_flags - add inp_flags2. 973 This changes most offsets in inpcb, so checking v4 connection 974 state will require a world rebuild. 975 Bump __FreeBSD_version to 800080. 976 97720090415: 978 Add an llentry to struct route and struct route_in6. Modules 979 embedding a struct route will need to be recompiled. 980 Bump __FreeBSD_version to 800079. 981 98220090414: 983 The size of rt_metrics_lite and by extension rtentry has changed. 984 Networking administration apps will need to be recompiled. 985 The route command now supports show as an alias for get, weighting 986 of routes, sticky and nostick flags to alter the behavior of stateful 987 load balancing. 988 Bump __FreeBSD_version to 800078. 989 99020090408: 991 Do not use Giant for kbdmux(4) locking. This is wrong and 992 apparently causing more problems than it solves. This will 993 re-open the issue where interrupt handlers may race with 994 kbdmux(4) in polling mode. Typical symptoms include (but 995 not limited to) duplicated and/or missing characters when 996 low level console functions (such as gets) are used while 997 interrupts are enabled (for example geli password prompt, 998 mountroot prompt etc.). Disabling kbdmux(4) may help. 999 100020090407: 1001 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1002 kernel modules referencing any of the above need to be recompiled. 1003 Bump __FreeBSD_version to 800075. 1004 100520090320: 1006 GEOM_PART has become the default partition slicer for storage devices, 1007 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1008 introduces some changes: 1009 1010 MSDOS/EBR: the devices created from MSDOS extended partition entries 1011 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1012 to devices with offset-based names. fstabs may need to be modified. 1013 1014 BSD: the "geometry does not match label" warning is harmless in most 1015 cases but it points to problems in file system misalignment with 1016 disk geometry. The "c" partition is now implicit, covers the whole 1017 top-level drive and cannot be (mis)used by users. 1018 1019 General: Kernel dumps are now not allowed to be written to devices 1020 whose partition types indicate they are meant to be used for file 1021 systems (or, in case of MSDOS partitions, as something else than 1022 the "386BSD" type). 1023 1024 Most of these changes date approximately from 200812. 1025 102620090319: 1027 The uscanner(4) driver has been removed from the kernel. This follows 1028 Linux removing theirs in 2.6 and making libusb the default interface 1029 (supported by sane). 1030 103120090319: 1032 The multicast forwarding code has been cleaned up. netstat(1) 1033 only relies on KVM now for printing bandwidth upcall meters. 1034 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1035 ip6_mroute_mod respectively. The config(5) options for statically 1036 compiling this code remain the same, i.e. 'options MROUTING'. 1037 103820090315: 1039 Support for the IFF_NEEDSGIANT network interface flag has been 1040 removed, which means that non-MPSAFE network device drivers are no 1041 longer supported. In particular, if_ar, if_sr, and network device 1042 drivers from the old (legacy) USB stack can no longer be built or 1043 used. 1044 104520090313: 1046 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1047 a bunch of new language catalog files have also been added. 1048 This means that some common libc messages are now localized and 1049 they depend on the LC_MESSAGES environmental variable. 1050 105120090313: 1052 The k8temp(4) driver has been renamed to amdtemp(4) since 1053 support for Family 10 and Family 11 CPU families was added. 1054 105520090309: 1056 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1057 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1058 1059 For kernel developers, the most important changes are that the 1060 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1061 and this lock has been downgraded to a non-recursive mutex. 1062 1063 Transport protocols (UDP, Raw IP) are now responsible for filtering 1064 inbound multicast traffic according to group membership and source 1065 filters. The imo_multicast_filter() KPI exists for this purpose. 1066 Transports which do not use multicast (SCTP, TCP) already reject 1067 multicast by default. Forwarding and receive performance may improve 1068 as a mutex acquisition is no longer needed in the ip_input() 1069 low-level input path. in_addmulti() and in_delmulti() are shimmed 1070 to new KPIs which exist to support SSM in-kernel. 1071 1072 For application developers, it is recommended that loopback of 1073 multicast datagrams be disabled for best performance, as this 1074 will still cause the lock to be taken for each looped-back 1075 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1076 be tuned to 0 to disable loopback by default; it defaults to 1 1077 to preserve the existing behaviour. 1078 1079 For systems administrators, to obtain best performance with 1080 multicast reception and multiple groups, it is always recommended 1081 that a card with a suitably precise hash filter is used. Hash 1082 collisions will still result in the lock being taken within the 1083 transport protocol input path to check group membership. 1084 1085 If deploying FreeBSD in an environment with IGMP snooping switches, 1086 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1087 enabled; this forces 224.0.0.0/24 group membership to be announced 1088 via IGMP. 1089 1090 The size of 'struct igmpstat' has changed; netstat needs to be 1091 recompiled to reflect this. 1092 Bump __FreeBSD_version to 800070. 1093 109420090309: 1095 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1096 updated to use it. This requires a buildworld/installworld in order to 1097 update the library and dependencies (usbconfig, etc). Its advisable to 1098 rebuild all ports which uses libusb. More specific directions are given 1099 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1100 libusb are no longer required and can be removed. 1101 110220090302: 1103 A workaround is committed to allow the creation of System V shared 1104 memory segment of size > 2 GB on the 64-bit architectures. 1105 Due to a limitation of the existing ABI, the shm_segsz member 1106 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1107 wrong for large segments. Note that limits must be explicitly 1108 raised to allow such segments to be created. 1109 111020090301: 1111 The layout of struct ifnet has changed, requiring a rebuild of all 1112 network device driver modules. 1113 111420090227: 1115 The /dev handling for the new USB stack has changed, a 1116 buildworld/installworld is required for libusb20. 1117 111820090223: 1119 The new USB2 stack has now been permanently moved in and all kernel and 1120 module names reverted to their previous values (eg, usb, ehci, ohci, 1121 ums, ...). The old usb stack can be compiled in by prefixing the name 1122 with the letter 'o', the old usb modules have been removed. 1123 Updating entry 20090216 for xorg and 20090215 for libmap may still 1124 apply. 1125 112620090217: 1127 The rc.conf(5) option if_up_delay has been renamed to 1128 defaultroute_delay to better reflect its purpose. If you have 1129 customized this setting in /etc/rc.conf you need to update it to 1130 use the new name. 1131 113220090216: 1133 xorg 7.4 wants to configure its input devices via hald which does not 1134 yet work with USB2. If the keyboard/mouse does not work in xorg then 1135 add 1136 Option "AllowEmptyInput" "off" 1137 to your ServerLayout section. This will cause X to use the configured 1138 kbd and mouse sections from your xorg.conf. 1139 114020090215: 1141 The GENERIC kernels for all architectures now default to the new USB2 1142 stack. No kernel config options or code have been removed so if a 1143 problem arises please report it and optionally revert to the old USB 1144 stack. If you are loading USB kernel modules or have a custom kernel 1145 that includes GENERIC then ensure that usb names are also changed over, 1146 eg uftdi -> usb2_serial_ftdi. 1147 1148 Older programs linked against the ports libusb 0.1 need to be 1149 redirected to the new stack's libusb20. /etc/libmap.conf can 1150 be used for this: 1151 # Map old usb library to new one for usb2 stack 1152 libusb-0.1.so.8 libusb20.so.1 1153 115420090209: 1155 All USB ethernet devices now attach as interfaces under the name ueN 1156 (eg. ue0). This is to provide a predictable name as vendors often 1157 change usb chipsets in a product without notice. 1158 115920090203: 1160 The ichsmb(4) driver has been changed to require SMBus slave 1161 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1162 All of the other SMBus controller drivers require left-justified 1163 slave addresses, so this change makes all the drivers provide the 1164 same interface. 1165 116620090201: 1167 INET6 statistics (struct ip6stat) was updated. 1168 netstat(1) needs to be recompiled. 1169 117020090119: 1171 NTFS has been removed from GENERIC kernel on amd64 to match 1172 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1173 will load ntfs.ko module automatically when NTFS support is 1174 actually needed, unless ntfs.ko is not installed or security 1175 level prohibits loading kernel modules. If either is the case, 1176 "options NTFS" has to be added into kernel config. 1177 117820090115: 1179 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1180 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1181 800061. User space tools that rely on the size of struct tcpcb in 1182 tcp_var.h (e.g. sockstat) need to be recompiled. 1183 118420081225: 1185 ng_tty(4) module updated to match the new TTY subsystem. 1186 Due to API change, user-level applications must be updated. 1187 New API support added to mpd5 CVS and expected to be present 1188 in next mpd5.3 release. 1189 119020081219: 1191 With __FreeBSD_version 800060 the makefs tool is part of 1192 the base system (it was a port). 1193 119420081216: 1195 The afdata and ifnet locks have been changed from mutexes to 1196 rwlocks, network modules will need to be re-compiled. 1197 119820081214: 1199 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1200 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1201 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1202 architecture and 40 bytes on 64-bit architecture. The userland 1203 applications "arp" and "ndp" have been updated accordingly. 1204 The output from "netstat -r" shows only routing entries and 1205 none of the L2 information. 1206 120720081130: 1208 __FreeBSD_version 800057 marks the switchover from the 1209 binary ath hal to source code. Users must add the line: 1210 1211 options AH_SUPPORT_AR5416 1212 1213 to their kernel config files when specifying: 1214 1215 device ath_hal 1216 1217 The ath_hal module no longer exists; the code is now compiled 1218 together with the driver in the ath module. It is now 1219 possible to tailor chip support (i.e. reduce the set of chips 1220 and thereby the code size); consult ath_hal(4) for details. 1221 122220081121: 1223 __FreeBSD_version 800054 adds memory barriers to 1224 <machine/atomic.h>, new interfaces to ifnet to facilitate 1225 multiple hardware transmit queues for cards that support 1226 them, and a lock-less ring-buffer implementation to 1227 enable drivers to more efficiently manage queueing of 1228 packets. 1229 123020081117: 1231 A new version of ZFS (version 13) has been merged to -HEAD. 1232 This version has zpool attribute "listsnapshots" off by 1233 default, which means "zfs list" does not show snapshots, 1234 and is the same as Solaris behavior. 1235 123620081028: 1237 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1238 123920081009: 1240 The uhci, ohci, ehci and slhci USB Host controller drivers have 1241 been put into separate modules. If you load the usb module 1242 separately through loader.conf you will need to load the 1243 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1244 controller add the following to loader.conf: 1245 1246 uhci_load="YES" 1247 ehci_load="YES" 1248 124920081009: 1250 The ABI used by the PMC toolset has changed. Please keep 1251 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1252 sync. 1253 125420081009: 1255 atapci kernel module now includes only generic PCI ATA 1256 driver. AHCI driver moved to ataahci kernel module. 1257 All vendor-specific code moved into separate kernel modules: 1258 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1259 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1260 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1261 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1262 126320080820: 1264 The TTY subsystem of the kernel has been replaced by a new 1265 implementation, which provides better scalability and an 1266 improved driver model. Most common drivers have been migrated to 1267 the new TTY subsystem, while others have not. The following 1268 drivers have not yet been ported to the new TTY layer: 1269 1270 PCI/ISA: 1271 cy, digi, rc, rp, sio 1272 1273 USB: 1274 ubser, ucycom 1275 1276 Line disciplines: 1277 ng_h4, ng_tty, ppp, sl, snp 1278 1279 Adding these drivers to your kernel configuration file shall 1280 cause compilation to fail. 1281 128220080818: 1283 ntpd has been upgraded to 4.2.4p5. 1284 128520080801: 1286 OpenSSH has been upgraded to 5.1p1. 1287 1288 For many years, FreeBSD's version of OpenSSH preferred DSA 1289 over RSA for host and user authentication keys. With this 1290 upgrade, we've switched to the vendor's default of RSA over 1291 DSA. This may cause upgraded clients to warn about unknown 1292 host keys even for previously known hosts. Users should 1293 follow the usual procedure for verifying host keys before 1294 accepting the RSA key. 1295 1296 This can be circumvented by setting the "HostKeyAlgorithms" 1297 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1298 command line. 1299 1300 Please note that the sequence of keys offered for 1301 authentication has been changed as well. You may want to 1302 specify IdentityFile in a different order to revert this 1303 behavior. 1304 130520080713: 1306 The sio(4) driver has been removed from the i386 and amd64 1307 kernel configuration files. This means uart(4) is now the 1308 default serial port driver on those platforms as well. 1309 1310 To prevent collisions with the sio(4) driver, the uart(4) driver 1311 uses different names for its device nodes. This means the 1312 onboard serial port will now most likely be called "ttyu0" 1313 instead of "ttyd0". You may need to reconfigure applications to 1314 use the new device names. 1315 1316 When using the serial port as a boot console, be sure to update 1317 /boot/device.hints and /etc/ttys before booting the new kernel. 1318 If you forget to do so, you can still manually specify the hints 1319 at the loader prompt: 1320 1321 set hint.uart.0.at="isa" 1322 set hint.uart.0.port="0x3F8" 1323 set hint.uart.0.flags="0x10" 1324 set hint.uart.0.irq="4" 1325 boot -s 1326 132720080609: 1328 The gpt(8) utility has been removed. Use gpart(8) to partition 1329 disks instead. 1330 133120080603: 1332 The version that Linuxulator emulates was changed from 2.4.2 1333 to 2.6.16. If you experience any problems with Linux binaries 1334 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1335 if it fixes the problem contact emulation mailing list. 1336 133720080525: 1338 ISDN4BSD (I4B) was removed from the src tree. You may need to 1339 update a your kernel configuration and remove relevant entries. 1340 134120080509: 1342 I have checked in code to support multiple routing tables. 1343 See the man pages setfib(1) and setfib(2). 1344 This is a hopefully backwards compatible version, 1345 but to make use of it you need to compile your kernel 1346 with options ROUTETABLES=2 (or more up to 16). 1347 134820080420: 1349 The 802.11 wireless support was redone to enable multi-bss 1350 operation on devices that are capable. The underlying device 1351 is no longer used directly but instead wlanX devices are 1352 cloned with ifconfig. This requires changes to rc.conf files. 1353 For example, change: 1354 ifconfig_ath0="WPA DHCP" 1355 to 1356 wlans_ath0=wlan0 1357 ifconfig_wlan0="WPA DHCP" 1358 see rc.conf(5) for more details. In addition, mergemaster of 1359 /etc/rc.d is highly recommended. Simultaneous update of userland 1360 and kernel wouldn't hurt either. 1361 1362 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1363 modules were merged into the base wlan module. All references 1364 to these modules (e.g. in kernel config files) must be removed. 1365 136620080408: 1367 psm(4) has gained write(2) support in native operation level. 1368 Arbitrary commands can be written to /dev/psm%d and status can 1369 be read back from it. Therefore, an application is responsible 1370 for status validation and error recovery. It is a no-op in 1371 other operation levels. 1372 137320080312: 1374 Support for KSE threading has been removed from the kernel. To 1375 run legacy applications linked against KSE libmap.conf may 1376 be used. The following libmap.conf may be used to ensure 1377 compatibility with any prior release: 1378 1379 libpthread.so.1 libthr.so.1 1380 libpthread.so.2 libthr.so.2 1381 libkse.so.3 libthr.so.3 1382 138320080301: 1384 The layout of struct vmspace has changed. This affects libkvm 1385 and any executables that link against libkvm and use the 1386 kvm_getprocs() function. In particular, but not exclusively, 1387 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1388 The effects are minimal, but it's advisable to upgrade world 1389 nonetheless. 1390 139120080229: 1392 The latest em driver no longer has support in it for the 1393 82575 adapter, this is now moved to the igb driver. The 1394 split was done to make new features that are incompatible 1395 with older hardware easier to do. 1396 139720080220: 1398 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1399 likewise the kernel option is now GEOM_LINUX_LVM. 1400 140120080211: 1402 The default NFS mount mode has changed from UDP to TCP for 1403 increased reliability. If you rely on (insecurely) NFS 1404 mounting across a firewall you may need to update your 1405 firewall rules. 1406 140720080208: 1408 Belatedly note the addition of m_collapse for compacting 1409 mbuf chains. 1410 141120080126: 1412 The fts(3) structures have been changed to use adequate 1413 integer types for their members and so to be able to cope 1414 with huge file trees. The old fts(3) ABI is preserved 1415 through symbol versioning in libc, so third-party binaries 1416 using fts(3) should still work, although they will not take 1417 advantage of the extended types. At the same time, some 1418 third-party software might fail to build after this change 1419 due to unportable assumptions made in its source code about 1420 fts(3) structure members. Such software should be fixed 1421 by its vendor or, in the worst case, in the ports tree. 1422 FreeBSD_version 800015 marks this change for the unlikely 1423 case that a portable fix is impossible. 1424 142520080123: 1426 To upgrade to -current after this date, you must be running 1427 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1428 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1429 143020071128: 1431 The ADAPTIVE_GIANT kernel option has been retired because its 1432 functionality is the default now. 1433 143420071118: 1435 The AT keyboard emulation of sunkbd(4) has been turned on 1436 by default. In order to make the special symbols of the Sun 1437 keyboards driven by sunkbd(4) work under X these now have 1438 to be configured the same way as Sun USB keyboards driven 1439 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1440 1441 Option "XkbLayout" "us" 1442 Option "XkbRules" "xorg" 1443 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1444 144520071024: 1446 It has been decided that it is desirable to provide ABI 1447 backwards compatibility to the FreeBSD 4/5/6 versions of the 1448 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1449 broken with the introduction of PCI domain support (see the 1450 20070930 entry). Unfortunately, this required the ABI of 1451 PCIOCGETCONF to be broken again in order to be able to 1452 provide backwards compatibility to the old version of that 1453 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1454 again. As for prominent ports this affects neither pciutils 1455 nor xorg-server this time, the hal port needs to be rebuilt 1456 however. 1457 145820071020: 1459 The misnamed kthread_create() and friends have been renamed 1460 to kproc_create() etc. Many of the callers already 1461 used kproc_start().. 1462 I will return kthread_create() and friends in a while 1463 with implementations that actually create threads, not procs. 1464 Renaming corresponds with version 800002. 1465 146620071010: 1467 RELENG_7 branched. 1468 1469COMMON ITEMS: 1470 1471 General Notes 1472 ------------- 1473 Avoid using make -j when upgrading. While generally safe, there are 1474 sometimes problems using -j to upgrade. If your upgrade fails with 1475 -j, please try again without -j. From time to time in the past there 1476 have been problems using -j with buildworld and/or installworld. This 1477 is especially true when upgrading between "distant" versions (eg one 1478 that cross a major release boundary or several minor releases, or when 1479 several months have passed on the -current branch). 1480 1481 Sometimes, obscure build problems are the result of environment 1482 poisoning. This can happen because the make utility reads its 1483 environment when searching for values for global variables. To run 1484 your build attempts in an "environmental clean room", prefix all make 1485 commands with 'env -i '. See the env(1) manual page for more details. 1486 1487 When upgrading from one major version to another it is generally best 1488 to upgrade to the latest code in the currently installed branch first, 1489 then do an upgrade to the new branch. This is the best-tested upgrade 1490 path, and has the highest probability of being successful. Please try 1491 this approach before reporting problems with a major version upgrade. 1492 1493 ZFS notes 1494 --------- 1495 When upgrading the boot ZFS pool to a new version, always follow 1496 these two steps: 1497 1498 1.) recompile and reinstall the ZFS boot loader and boot block 1499 (this is part of "make buildworld" and "make installworld") 1500 1501 2.) update the ZFS boot block on your boot drive 1502 1503 The following example updates the ZFS boot block on the first 1504 partition (freebsd-boot) of a GPT partitioned drive ad0: 1505 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1506 1507 Non-boot pools do not need these updates. 1508 1509 To build a kernel 1510 ----------------- 1511 If you are updating from a prior version of FreeBSD (even one just 1512 a few days old), you should follow this procedure. It is the most 1513 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1514 1515 make kernel-toolchain 1516 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1517 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1518 1519 To test a kernel once 1520 --------------------- 1521 If you just want to boot a kernel once (because you are not sure 1522 if it works, or if you want to boot a known bad kernel to provide 1523 debugging information) run 1524 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1525 nextboot -k testkernel 1526 1527 To just build a kernel when you know that it won't mess you up 1528 -------------------------------------------------------------- 1529 This assumes you are already running a CURRENT system. Replace 1530 ${arch} with the architecture of your machine (e.g. "i386", 1531 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1532 1533 cd src/sys/${arch}/conf 1534 config KERNEL_NAME_HERE 1535 cd ../compile/KERNEL_NAME_HERE 1536 make depend 1537 make 1538 make install 1539 1540 If this fails, go to the "To build a kernel" section. 1541 1542 To rebuild everything and install it on the current system. 1543 ----------------------------------------------------------- 1544 # Note: sometimes if you are running current you gotta do more than 1545 # is listed here if you are upgrading from a really old current. 1546 1547 <make sure you have good level 0 dumps> 1548 make buildworld 1549 make kernel KERNCONF=YOUR_KERNEL_HERE 1550 [1] 1551 <reboot in single user> [3] 1552 mergemaster -p [5] 1553 make installworld 1554 mergemaster -i [4] 1555 make delete-old [6] 1556 <reboot> 1557 1558 1559 To cross-install current onto a separate partition 1560 -------------------------------------------------- 1561 # In this approach we use a separate partition to hold 1562 # current's root, 'usr', and 'var' directories. A partition 1563 # holding "/", "/usr" and "/var" should be about 2GB in 1564 # size. 1565 1566 <make sure you have good level 0 dumps> 1567 <boot into -stable> 1568 make buildworld 1569 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1570 <maybe newfs current's root partition> 1571 <mount current's root partition on directory ${CURRENT_ROOT}> 1572 make installworld DESTDIR=${CURRENT_ROOT} 1573 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1574 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1575 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1576 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1577 <reboot into current> 1578 <do a "native" rebuild/install as described in the previous section> 1579 <maybe install compatibility libraries from ports/misc/compat*> 1580 <reboot> 1581 1582 1583 To upgrade in-place from stable to current 1584 ---------------------------------------------- 1585 <make sure you have good level 0 dumps> 1586 make buildworld [9] 1587 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1588 [1] 1589 <reboot in single user> [3] 1590 mergemaster -p [5] 1591 make installworld 1592 mergemaster -i [4] 1593 make delete-old [6] 1594 <reboot> 1595 1596 Make sure that you've read the UPDATING file to understand the 1597 tweaks to various things you need. At this point in the life 1598 cycle of current, things change often and you are on your own 1599 to cope. The defaults can also change, so please read ALL of 1600 the UPDATING entries. 1601 1602 Also, if you are tracking -current, you must be subscribed to 1603 freebsd-current@freebsd.org. Make sure that before you update 1604 your sources that you have read and understood all the recent 1605 messages there. If in doubt, please track -stable which has 1606 much fewer pitfalls. 1607 1608 [1] If you have third party modules, such as vmware, you 1609 should disable them at this point so they don't crash your 1610 system on reboot. 1611 1612 [3] From the bootblocks, boot -s, and then do 1613 fsck -p 1614 mount -u / 1615 mount -a 1616 cd src 1617 adjkerntz -i # if CMOS is wall time 1618 Also, when doing a major release upgrade, it is required that 1619 you boot into single user mode to do the installworld. 1620 1621 [4] Note: This step is non-optional. Failure to do this step 1622 can result in a significant reduction in the functionality of the 1623 system. Attempting to do it by hand is not recommended and those 1624 that pursue this avenue should read this file carefully, as well 1625 as the archives of freebsd-current and freebsd-hackers mailing lists 1626 for potential gotchas. The -U option is also useful to consider. 1627 See mergemaster(8) for more information. 1628 1629 [5] Usually this step is a noop. However, from time to time 1630 you may need to do this if you get unknown user in the following 1631 step. It never hurts to do it all the time. You may need to 1632 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1633 install) after the buildworld before this step if you last updated 1634 from [78]-stable or 9-stable before 20130430. 1635 1636 [6] This only deletes old files and directories. Old libraries 1637 can be deleted by "make delete-old-libs", but you have to make 1638 sure that no program is using those libraries anymore. 1639 1640 [8] In order to have a kernel that can run the 4.x binaries needed to 1641 do an installworld, you must include the COMPAT_FREEBSD4 option in 1642 your kernel. Failure to do so may leave you with a system that is 1643 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1644 required to run the 5.x binaries on more recent kernels. And so on 1645 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1646 1647 Make sure that you merge any new devices from GENERIC since the 1648 last time you updated your kernel config file. 1649 1650 [9] When checking out sources, you must include the -P flag to have 1651 cvs prune empty directories. 1652 1653 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1654 "?=" instead of the "=" assignment operator, so that buildworld can 1655 override the CPUTYPE if it needs to. 1656 1657 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1658 not on the command line, or in /etc/make.conf. buildworld will 1659 warn if it is improperly defined. 1660FORMAT: 1661 1662This file contains a list, in reverse chronological order, of major 1663breakages in tracking -current. It is not guaranteed to be a complete 1664list of such breakages, and only contains entries since October 10, 2007. 1665If you need to see UPDATING entries from before that date, you will need 1666to fetch an UPDATING file from an older FreeBSD release. 1667 1668Copyright information: 1669 1670Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1671 1672Redistribution, publication, translation and use, with or without 1673modification, in full or in part, in any form or format of this 1674document are permitted without further permission from the author. 1675 1676THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1677IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1678WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1679DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1680INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1681(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1682SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1683HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1684STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1685IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1686POSSIBILITY OF SUCH DAMAGE. 1687 1688Contact Warner Losh if you have any questions about your use of 1689this document. 1690 1691$FreeBSD: releng/9.3/UPDATING 271305 2014-09-09 10:13:46Z delphij $ 1692