mirror of
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a9ab459b31
replace amd(4) with the former in the amd64, i386 and pc98 GENERIC kernel configuration files. Besides duplicating functionality, amd(4), which previously also supported the AMD Am53C974, unlike esp(4) is no longer maintained and has accumulated enough bit rot over time to always cause a panic during boot as long as at least one target is attached to it (see PR 124667). PR: 124667 Obtained from: NetBSD (based on) MFC after: 3 days
1517 lines
62 KiB
Plaintext
1517 lines
62 KiB
Plaintext
Updating Information for FreeBSD current users
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This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>.
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See end of file for further details. For commonly done items, please see the
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COMMON ITEMS: section later in the file. These instructions assume that you
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basically know what you are doing. If not, then please consult the FreeBSD
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handbook.
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Items affecting the ports and packages system can be found in
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/usr/ports/UPDATING. Please read that file before running portupgrade.
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NOTE TO PEOPLE WHO THINK THAT FreeBSD 10.x IS SLOW:
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FreeBSD 10.x has many debugging features turned on, in both the kernel
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and userland. These features attempt to detect incorrect use of
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system primitives, and encourage loud failure through extra sanity
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checking and fail stop semantics. They also substantially impact
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system performance. If you want to do performance measurement,
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benchmarking, and optimization, you'll want to turn them off. This
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includes various WITNESS- related kernel options, INVARIANTS, malloc
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debugging flags in userland, and various verbose features in the
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kernel. Many developers choose to disable these features on build
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machines to maximize performance. (To disable malloc debugging, run
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ln -s aj /etc/malloc.conf.)
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20111101:
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The broken amd(4) driver has been replaced with esp(4) in the amd64,
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i386 and pc98 GENERIC kernel configuration files.
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20110930:
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sysinstall has been removed
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20110923:
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The stable/9 branch created in subversion. This corresponds to the
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RELENG_9 branch in CVS.
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20110913:
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This commit modifies vfs_register() so that it uses a hash
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calculation to set vfc_typenum, which is enabled by default.
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The first time a system is booted after this change, the
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vfc_typenum values will change for all file systems. The
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main effect of this is a change to the NFS server file handles
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for file systems that use vfc_typenum in their fsid, such as ZFS.
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It will, however, prevent vfc_typenum from changing when file
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systems are loaded in a different order for subsequent reboots.
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To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf
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until you are ready to remount all NFS clients after a reboot.
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20110828:
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Bump the shared library version numbers for libraries that
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do not use symbol versioning, have changed the ABI compared
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to stable/8 and which shared library version was not bumped.
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Done as part of 9.0-RELEASE cycle.
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20110815:
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During the merge of Capsicum features, the fget(9) KPI was modified.
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This may require the rebuilding of out-of-tree device drivers --
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issues have been reported specifically with the nVidia device driver.
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__FreeBSD_version is bumped to 900041.
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Also, there is a period between 20110811 and 20110814 where the
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special devices /dev/{stdin,stdout,stderr} did not work correctly.
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Building world from a kernel during that window may not work.
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20110628:
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The packet filter (pf) code has been updated to OpenBSD 4.5.
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You need to update userland tools to be in sync with kernel.
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This update breaks backward compatibility with earlier pfsync(4)
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versions. Care must be taken when updating redundant firewall setups.
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20110608:
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The following sysctls and tunables are retired on x86 platforms:
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machdep.hlt_cpus
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machdep.hlt_logical_cpus
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The following sysctl is retired:
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machdep.hyperthreading_allowed
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The sysctls were supposed to provide a way to dynamically offline and
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online selected CPUs on x86 platforms, but the implementation has not
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been reliable especially with SCHED_ULE scheduler.
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machdep.hyperthreading_allowed tunable is still available to ignore
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hyperthreading CPUs at OS level.
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Individual CPUs can be disabled using hint.lapic.X.disabled tunable,
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where X is an APIC ID of a CPU. Be advised, though, that disabling
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CPUs in non-uniform fashion will result in non-uniform topology and
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may lead to sub-optimal system performance with SCHED_ULE, which is
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a default scheduler.
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20110607:
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cpumask_t type is retired and cpuset_t is used in order to describe
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a mask of CPUs.
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20110531:
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Changes to ifconfig(8) for dynamic address family detection mandate
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that you are running a kernel of 20110525 or later. Make sure to
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follow the update procedure to boot a new kernel before installing
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world.
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20110513:
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Support for sun4v architecture is officially dropped
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20110503:
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Several KPI breaking changes have been committed to the mii(4) layer,
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the PHY drivers and consequently some Ethernet drivers using mii(4).
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This means that miibus.ko and the modules of the affected Ethernet
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drivers need to be recompiled.
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Note to kernel developers: Given that the OUI bit reversion problem
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was fixed as part of these changes all mii(4) commits related to OUIs,
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i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific
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handling, no longer can be merged verbatim to stable/8 and previous
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branches.
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20110430:
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Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci'
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into their kernel configurations along with 'device pci'.
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20110427:
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The default NFS client is now the new NFS client, so fstype "newnfs"
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is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
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Although mounts via fstype "nfs" will usually work without userland
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changes, it is recommended that the mount(8) and mount_nfs(8)
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commands be rebuilt from sources and that a link to mount_nfs called
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mount_oldnfs be created. The new client is compiled into the
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kernel with "options NFSCL" and this is needed for diskless root
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file systems. The GENERIC kernel configs have been changed to use
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NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER.
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To use the regular/old client, you can "mount -t oldnfs ...". For
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a diskless root file system, you must also include a line like:
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vfs.root.mountfrom="oldnfs:"
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in the boot/loader.conf on the root fs on the NFS server to make
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a diskless root fs use the old client.
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20110424:
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The GENERIC kernels for all architectures now default to the new
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CAM-based ATA stack. It means that all legacy ATA drivers were
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removed and replaced by respective CAM drivers. If you are using
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ATA device names in /etc/fstab or other places, make sure to update
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them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY,
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where 'Y's are the sequential numbers starting from zero for each type
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in order of detection, unless configured otherwise with tunables,
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see cam(4)). There will be symbolic links created in /dev/ to map
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old adX devices to the respective adaY. They should provide basic
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compatibility for file systems mounting in most cases, but they do
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not support old user-level APIs and do not have respective providers
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in GEOM. Consider using updated management tools with new device names.
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It is possible to load devices ahci, ata, siis and mvs as modules,
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but option ATA_CAM should remain in kernel configuration to make ata
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module work as CAM driver supporting legacy ATA controllers. Device ata
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still can be used in modular fashion (atacore + ...). Modules atadisk
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and atapi* are not used and won't affect operation in ATA_CAM mode.
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Note that to use CAM-based ATA kernel should include CAM devices
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scbus, pass, da (or explicitly ada), cd and optionally others. All of
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them are parts of the cam module.
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ataraid(4) functionality is now supported by the RAID GEOM class.
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To use it you can load geom_raid kernel module and use graid(8) tool
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for management. Instead of /dev/arX device names, use /dev/raid/rX.
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No kernel config options or code have been removed, so if a problem
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arises, please report it and optionally revert to the old ATA stack.
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In order to do it you can remove from the kernel config:
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options ATA_CAM
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device ahci
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device mvs
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device siis
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, and instead add back:
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device atadisk # ATA disk drives
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device ataraid # ATA RAID drives
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device atapicd # ATAPI CDROM drives
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device atapifd # ATAPI floppy drives
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device atapist # ATAPI tape drives
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20110423:
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The default NFS server has been changed to the new server, which
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was referred to as the experimental server. If you need to switch
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back to the old NFS server, you must now put the "-o" option on
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both the mountd and nfsd commands. This can be done using the
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mountd_flags and nfs_server_flags rc.conf variables until an
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update to the rc scripts is committed, which is coming soon.
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20110418:
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The GNU Objective-C runtime library (libobjc), and other Objective-C
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related components have been removed from the base system. If you
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require an Objective-C library, please use one of the available ports.
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20110331:
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ath(4) has been split into bus- and device- modules. if_ath contains
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the HAL, the TX rate control and the network device code. if_ath_pci
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contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb
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contains the AHB glue. Users need to load both if_ath_pci and if_ath
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in order to use ath on everything else.
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TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only
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need to load if_ath and if_ath_pci for ath(4) operation.
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20110314:
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As part of the replacement of sysinstall, the process of building
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release media has changed significantly. For details, please re-read
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release(7), which has been updated to reflect the new build process.
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20110218:
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GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This
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is the last available version under GPLv2. It brings a number of new
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features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE
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4.1 and SSE 4.2), better support for powerpc64, a number of new
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directives, and lots of other small improvements. See the ChangeLog
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file in contrib/binutils for the full details.
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20110218:
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IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868
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compliant, and will now use half of hash for authentication.
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This will break interoperability with all stacks (including all
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actual FreeBSD versions) who implement
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draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for
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authentication).
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The only workaround with such peers is to use another HMAC
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algorithm for IPsec ("phase 2") authentication.
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20110207:
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Remove the uio_yield prototype and symbol. This function has
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been misnamed since it was introduced and should not be
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globally exposed with this name. The equivalent functionality
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is now available using kern_yield(curthread->td_user_pri).
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The function remains undocumented.
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20110112:
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A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers,
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symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking
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for scalar sysctls is defined but disabled. Code that needs
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UQUAD to pass the type checking that must compile on older
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systems where the define is not present can check against
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__FreeBSD_version >= 900030.
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The system dialog(1) has been replaced with a new version previously
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in ports as devel/cdialog. dialog(1) is mostly command-line compatible
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with the previous version, but the libdialog associated with it has
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a largely incompatible API. As such, the original version of libdialog
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will be kept temporarily as libodialog, until its base system consumers
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are replaced or updated. Bump __FreeBSD_version to 900030.
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20110103:
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If you are trying to run make universe on a -stable system, and you get
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the following warning:
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"Makefile", line 356: "Target architecture for i386/conf/GENERIC
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unknown. config(8) likely too old."
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or something similar to it, then you must upgrade your -stable system
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to 8.2-Release or newer (really, any time after r210146 7/15/2010 in
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stable/8) or build the config from the latest stable/8 branch and
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install it on your system.
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Prior to this date, building a current universe on 8-stable system from
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between 7/15/2010 and 1/2/2011 would result in a weird shell parsing
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error in the first kernel build phase. A new config on those old
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systems will fix that problem for older versions of -current.
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20101228:
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The TCP stack has been modified to allow Khelp modules to interact with
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it via helper hook points and store per-connection data in the TCP
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control block. Bump __FreeBSD_version to 900029. User space tools that
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rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to
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be recompiled.
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20101114:
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Generic IEEE 802.3 annex 31B full duplex flow control support has been
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added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along
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with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted
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to take advantage of it instead of using custom implementations. This
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means that these drivers now no longer unconditionally advertise
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support for flow control but only do so if flow control is a selected
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media option. This was implemented in the generic support that way in
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order to allow flow control to be switched on and off via ifconfig(8)
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with the PHY specific default to typically off in order to protect
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from unwanted effects. Consequently, if you used flow control with
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one of the above mentioned drivers you now need to explicitly enable
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it, for example via:
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ifconfig bge0 media auto mediaopt flowcontrol
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Along with the above mentioned changes generic support for setting
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1000baseT master mode also has been added and brgphy(4), ciphy(4),
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e1000phy(4) as well as ip1000phy(4) have been converted to take
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advantage of it. This means that these drivers now no longer take the
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link0 parameter for selecting master mode but the master media option
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has to be used instead, for example like in the following:
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ifconfig bge0 media 1000baseT mediaopt full-duplex,master
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Selection of master mode now is also available with all other PHY
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drivers supporting 1000baseT.
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20101111:
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The TCP stack has received a significant update to add support for
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modularised congestion control and generally improve the clarity of
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congestion control decisions. Bump __FreeBSD_version to 900025. User
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space tools that rely on the size of struct tcpcb in tcp_var.h (e.g.
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sockstat) need to be recompiled.
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20101002:
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The man(1) utility has been replaced by a new version that no longer
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uses /etc/manpath.config. Please consult man.conf(5) for how to
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migrate local entries to the new format.
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20100928:
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The copyright strings printed by login(1) and sshd(8) at the time of a
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new connection have been removed to follow other operating systems and
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upstream sshd.
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20100915:
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A workaround for a fixed ld bug has been removed in kernel code,
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so make sure that your system ld is built from sources after
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revision 210245 from 2010-07-19 (r211583 if building head kernel
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on stable/8, r211584 for stable/7; both from 2010-08-21).
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A symptom of incorrect ld version is different addresses for
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set_pcpu section and __start_set_pcpu symbol in kernel and/or modules.
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20100913:
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The $ipv6_prefer variable in rc.conf(5) has been split into
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$ip6addrctl_policy and $ipv6_activate_all_interfaces.
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The $ip6addrctl_policy is a variable to choose a pre-defined
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address selection policy set by ip6addrctl(8). A value
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"ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The
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default is "AUTO".
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The $ipv6_activate_all_interfaces specifies whether IFDISABLED
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flag (see an entry of 20090926) is set on an interface with no
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corresponding $ifconfig_IF_ipv6 line. The default is "NO" for
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security reason. If you want IPv6 link-local address on all
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interfaces by default, set this to "YES".
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The old ipv6_prefer="YES" is equivalent to
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ipv6_activate_all_interfaces="YES" and
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ip6addrctl_policy="ipv6_prefer".
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20100913:
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DTrace has grown support for userland tracing. Due to this, DTrace is
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now i386 and amd64 only.
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dtruss(1) is now installed by default on those systems and a new
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kernel module is needed for userland tracing: fasttrap.
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No changes to your kernel config file are necessary to enable
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userland tracing, but you might consider adding 'STRIP=' and
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'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want
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to have informative userland stack traces in DTrace (ustack).
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20100725:
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The acpi_aiboost(4) driver has been removed in favor of the new
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aibs(4) driver. You should update your kernel configuration file.
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20100722:
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BSD grep has been imported to the base system and it is built by
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default. It is completely BSD licensed, highly GNU-compatible, uses
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less memory than its GNU counterpart and has a small codebase.
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However, it is slower than its GNU counterpart, which is mostly
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noticeable for larger searches, for smaller ones it is measurable
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but not significant. The reason is complex, the most important factor
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is that we lack a modern and efficient regex library and GNU
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overcomes this by optimizing the searches internally. Future work
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on improving the regex performance is planned, for the meantime,
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users that need better performance, can build GNU grep instead by
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setting the WITH_GNU_GREP knob.
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20100713:
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Due to the import of powerpc64 support, all existing powerpc kernel
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configuration files must be updated with a machine directive like this:
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machine powerpc powerpc
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In addition, an updated config(8) is required to build powerpc kernels
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after this change.
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20100713:
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A new version of ZFS (version 15) has been merged to -HEAD.
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This version uses a python library for the following subcommands:
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zfs allow, zfs unallow, zfs groupspace, zfs userspace.
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For full functionality of these commands the following port must
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be installed: sysutils/py-zfs
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20100429:
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'vm_page's are now hashed by physical address to an array of mutexes.
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Currently this is only used to serialize access to hold_count. Over
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time the page queue mutex will be peeled away. This changes the size
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of pmap on every architecture. And requires all callers of vm_page_hold
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and vm_page_unhold to be updated.
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20100402:
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WITH_CTF can now be specified in src.conf (not recommended, there
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are some problems with static executables), make.conf (would also
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affect ports which do not use GNU make and do not override the
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compile targets) or in the kernel config (via "makeoptions
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WITH_CTF=yes").
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When WITH_CTF was specified there before this was silently ignored,
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so make sure that WITH_CTF is not used in places which could lead
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to unwanted behavior.
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20100311:
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|
The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
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|
to allow 32-bit compatibility on non-x86 platforms. All kernel
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|
configurations on amd64 and ia64 platforms using these options must
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be modified accordingly.
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20100113:
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|
The utmp user accounting database has been replaced with utmpx,
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the user accounting interface standardized by POSIX.
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Unfortunately the semantics of utmp and utmpx don't match,
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making it practically impossible to support both interfaces.
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The user accounting database is used by tools like finger(1),
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last(1), talk(1), w(1) and ac(8).
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All applications in the base system use utmpx. This means only
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local binaries (e.g. from the ports tree) may still use these
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utmp database files. These applications must be rebuilt to make
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use of utmpx.
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After the system has been upgraded, it is safe to remove the old
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log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*),
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assuming their contents is of no importance anymore. Old wtmp
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databases can only be used by last(1) and ac(8) after they have
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been converted to the new format using wtmpcvt(1).
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20100108:
|
|
Introduce the kernel thread "deadlock resolver" (which can be enabled
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|
via the DEADLKRES option, see NOTES for more details) and the
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|
sleepq_type() function for sleepqueues.
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20091202:
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The rc.firewall and rc.firewall6 were unified, and
|
|
rc.firewall6 and rc.d/ip6fw were removed.
|
|
According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
|
|
variables are obsoleted. Instead, the following new rc
|
|
variables are added to rc.d/ipfw:
|
|
|
|
firewall_client_net_ipv6, firewall_simple_iif_ipv6,
|
|
firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
|
|
firewall_simple_onet_ipv6, firewall_trusted_ipv6
|
|
|
|
The meanings correspond to the relevant IPv4 variables.
|
|
|
|
20091125:
|
|
8.0-RELEASE.
|
|
|
|
20091113:
|
|
The default terminal emulation for syscons(4) has been changed
|
|
from cons25 to xterm on all platforms except pc98. This means
|
|
that the /etc/ttys file needs to be updated to ensure correct
|
|
operation of applications on the console.
|
|
|
|
The terminal emulation style can be toggled per window by using
|
|
vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration
|
|
options can be used to change the compile-time default back to
|
|
cons25.
|
|
|
|
To prevent graphical artifacts, make sure the TERM environment
|
|
variable is set to match the terminal emulation that is being
|
|
performed by syscons(4).
|
|
|
|
20091109:
|
|
The layout of the structure ieee80211req_scan_result has changed.
|
|
Applications that require wireless scan results (e.g. ifconfig(8))
|
|
from net80211 need to be recompiled.
|
|
|
|
Applications such as wpa_supplicant(8) may require a full world
|
|
build without using NO_CLEAN in order to get synchronized with the
|
|
new structure.
|
|
|
|
20091025:
|
|
The iwn(4) driver has been updated to support the 5000 and 5150 series.
|
|
There's one kernel module for each firmware. Adding "device iwnfw"
|
|
to the kernel configuration file means including all three firmware
|
|
images inside the kernel. If you want to include just the one for
|
|
your wireless card, use the devices iwn4965fw, iwn5000fw or
|
|
iwn5150fw.
|
|
|
|
20090926:
|
|
The rc.d/network_ipv6, IPv6 configuration script has been integrated
|
|
into rc.d/netif. The changes are the following:
|
|
|
|
1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF
|
|
for IPv4. For aliases, $ifconfig_IF_aliasN should be used.
|
|
Note that both variables need the "inet6" keyword at the head.
|
|
|
|
Do not set $ipv6_network_interfaces manually if you do not
|
|
understand what you are doing. It is not needed in most cases.
|
|
|
|
$ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but
|
|
they are obsolete.
|
|
|
|
2. $ipv6_enable is obsolete. Use $ipv6_prefer and
|
|
"inet6 accept_rtadv" keyword in ifconfig(8) instead.
|
|
|
|
If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and
|
|
all configured interfaces have "inet6 accept_rtadv" in the
|
|
$ifconfig_IF_ipv6. These are for backward compatibility.
|
|
|
|
3. A new variable $ipv6_prefer has been added. If NO, IPv6
|
|
functionality of interfaces with no corresponding
|
|
$ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag,
|
|
and the default address selection policy of ip6addrctl(8)
|
|
is the IPv4-preferred one (see rc.d/ip6addrctl for more details).
|
|
Note that if you want to configure IPv6 functionality on the
|
|
disabled interfaces after boot, first you need to clear the flag by
|
|
using ifconfig(8) like:
|
|
|
|
ifconfig em0 inet6 -ifdisabled
|
|
|
|
If YES, the default address selection policy is set as
|
|
IPv6-preferred.
|
|
|
|
The default value of $ipv6_prefer is NO.
|
|
|
|
4. If your system need to receive Router Advertisement messages,
|
|
define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8)
|
|
scripts automatically invoke rtsol(8) when the interface becomes
|
|
UP. The Router Advertisement messages are used for SLAAC
|
|
(State-Less Address AutoConfiguration).
|
|
|
|
20090922:
|
|
802.11s D3.03 support was committed. This is incompatible with the
|
|
previous code, which was based on D3.0.
|
|
|
|
20090912:
|
|
A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value
|
|
of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to
|
|
control whether accepting Router Advertisement messages or not.
|
|
Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and
|
|
a sysctl variable net.inet6.ip6.auto_linklocal is its default value.
|
|
The ifconfig(8) utility now supports these flags.
|
|
|
|
20090910:
|
|
ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
|
|
mount(8) and -a option for df(1) to see them.
|
|
|
|
20090825:
|
|
The old tunable hw.bus.devctl_disable has been superseded by
|
|
hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be
|
|
replaced by hw.bus.devctl_queue=0. The default for this new tunable
|
|
is 1000.
|
|
|
|
20090813:
|
|
Remove the option STOP_NMI. The default action is now to use NMI only
|
|
for KDB via the newly introduced function stop_cpus_hard() and
|
|
maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64.
|
|
|
|
20090803:
|
|
The stable/8 branch created in subversion. This corresponds to the
|
|
RELENG_8 branch in CVS.
|
|
|
|
20090719:
|
|
Bump the shared library version numbers for all libraries that do not
|
|
use symbol versioning as part of the 8.0-RELEASE cycle. Bump
|
|
__FreeBSD_version to 800105.
|
|
|
|
20090714:
|
|
Due to changes in the implementation of virtual network stack support,
|
|
all network-related kernel modules must be recompiled. As this change
|
|
breaks the ABI, bump __FreeBSD_version to 800104.
|
|
|
|
20090713:
|
|
The TOE interface to the TCP syncache has been modified to remove
|
|
struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack.
|
|
The cxgb driver is the only TOE consumer affected by this change, and
|
|
needs to be recompiled along with the kernel. As this change breaks
|
|
the ABI, bump __FreeBSD_version to 800103.
|
|
|
|
20090712:
|
|
Padding has been added to struct tcpcb, sackhint and tcpstat in
|
|
<netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
|
|
maintaining the ABI. However, this change breaks the ABI, so bump
|
|
__FreeBSD_version to 800102. User space tools that rely on the size of
|
|
any of these structs (e.g. sockstat) need to be recompiled.
|
|
|
|
20090630:
|
|
The NFS_LEGACYRPC option has been removed along with the old kernel
|
|
RPC implementation that this option selected. Kernel configurations
|
|
may need to be adjusted.
|
|
|
|
20090629:
|
|
The network interface device nodes at /dev/net/<interface> have been
|
|
removed. All ioctl operations can be performed the normal way using
|
|
routing sockets. The kqueue functionality can generally be replaced
|
|
with routing sockets.
|
|
|
|
20090628:
|
|
The documentation from the FreeBSD Documentation Project (Handbook,
|
|
FAQ, etc.) is now installed via packages by sysinstall(8) and under
|
|
the /usr/local/share/doc/freebsd directory instead of /usr/share/doc.
|
|
|
|
20090624:
|
|
The ABI of various structures related to the SYSV IPC API have been
|
|
changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel
|
|
options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to
|
|
800100.
|
|
|
|
20090622:
|
|
Layout of struct vnet has changed as routing related variables were
|
|
moved to their own Vimage module. Modules need to be recompiled. Bump
|
|
__FreeBSD_version to 800099.
|
|
|
|
20090619:
|
|
NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024
|
|
respectively. As long as no more than 16 groups per process are used,
|
|
no changes should be visible. When more than 16 groups are used, old
|
|
binaries may fail if they call getgroups() or getgrouplist() with
|
|
statically sized storage. Recompiling will work around this, but
|
|
applications should be modified to use dynamically allocated storage
|
|
for group arrays as POSIX.1-2008 does not cap an implementation's
|
|
number of supported groups at NGROUPS_MAX+1 as previous versions did.
|
|
|
|
NFS and portalfs mounts may also be affected as the list of groups is
|
|
truncated to 16. Users of NFS who use more than 16 groups, should
|
|
take care that negative group permissions are not used on the exported
|
|
file systems as they will not be reliable unless a GSSAPI based
|
|
authentication method is used.
|
|
|
|
20090616:
|
|
The compiling option ADAPTIVE_LOCKMGRS has been introduced. This
|
|
option compiles in the support for adaptive spinning for lockmgrs
|
|
which want to enable it. The lockinit() function now accepts the flag
|
|
LK_ADAPTIVE in order to make the lock object subject to adaptive
|
|
spinning when both held in write and read mode.
|
|
|
|
20090613:
|
|
The layout of the structure returned by IEEE80211_IOC_STA_INFO has
|
|
changed. User applications that use this ioctl need to be rebuilt.
|
|
|
|
20090611:
|
|
The layout of struct thread has changed. Kernel and modules need to
|
|
be rebuilt.
|
|
|
|
20090608:
|
|
The layout of structs ifnet, domain, protosw and vnet_net has changed.
|
|
Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097.
|
|
|
|
20090602:
|
|
window(1) has been removed from the base system. It can now be
|
|
installed from ports. The port is called misc/window.
|
|
|
|
20090601:
|
|
The way we are storing and accessing `routing table' entries has
|
|
changed. Programs reading the FIB, like netstat, need to be
|
|
re-compiled.
|
|
|
|
20090601:
|
|
A new netisr implementation has been added for FreeBSD 8. Network
|
|
file system modules, such as igmp, ipdivert, and others, should be
|
|
rebuilt.
|
|
Bump __FreeBSD_version to 800096.
|
|
|
|
20090530:
|
|
Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no
|
|
more valid.
|
|
|
|
20090530:
|
|
Add VOP_ACCESSX(9). File system modules need to be rebuilt.
|
|
Bump __FreeBSD_version to 800094.
|
|
|
|
20090529:
|
|
Add mnt_xflag field to 'struct mount'. File system modules need to be
|
|
rebuilt.
|
|
Bump __FreeBSD_version to 800093.
|
|
|
|
20090528:
|
|
The compiling option ADAPTIVE_SX has been retired while it has been
|
|
introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
|
|
The KPI for sx_init_flags() changes as accepting flags:
|
|
SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has
|
|
been introduced in order to handle the reversed logic.
|
|
Bump __FreeBSD_version to 800092.
|
|
|
|
20090527:
|
|
Add support for hierarchical jails. Remove global securelevel.
|
|
Bump __FreeBSD_version to 800091.
|
|
|
|
20090523:
|
|
The layout of struct vnet_net has changed, therefore modules
|
|
need to be rebuilt.
|
|
Bump __FreeBSD_version to 800090.
|
|
|
|
20090523:
|
|
The newly imported zic(8) produces a new format in the output. Please
|
|
run tzsetup(8) to install the newly created data to /etc/localtime.
|
|
|
|
20090520:
|
|
The sysctl tree for the usb stack has renamed from hw.usb2.* to
|
|
hw.usb.* and is now consistent again with previous releases.
|
|
|
|
20090520:
|
|
802.11 monitor mode support was revised and driver api's were changed.
|
|
Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead
|
|
of DLT_IEEE802_11. No user-visible data structures were changed but
|
|
applications that use DLT_IEEE802_11 may require changes.
|
|
Bump __FreeBSD_version to 800088.
|
|
|
|
20090430:
|
|
The layout of the following structs has changed: sysctl_oid,
|
|
socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
|
|
vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
|
|
panics may be experienced. World rebuild is required for
|
|
correctly checking networking state from userland.
|
|
Bump __FreeBSD_version to 800085.
|
|
|
|
20090429:
|
|
MLDv2 and Source-Specific Multicast (SSM) have been merged
|
|
to the IPv6 stack. VIMAGE hooks are in but not yet used.
|
|
The implementation of SSM within FreeBSD's IPv6 stack closely
|
|
follows the IPv4 implementation.
|
|
|
|
For kernel developers:
|
|
|
|
* The most important changes are that the ip6_output() and
|
|
ip6_input() paths no longer take the IN6_MULTI_LOCK,
|
|
and this lock has been downgraded to a non-recursive mutex.
|
|
|
|
* As with the changes to the IPv4 stack to support SSM, filtering
|
|
of inbound multicast traffic must now be performed by transport
|
|
protocols within the IPv6 stack. This does not apply to TCP and
|
|
SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
|
|
|
|
* The KPIs used by IPv6 multicast are similar to those used by
|
|
the IPv4 stack, with the following differences:
|
|
* im6o_mc_filter() is analogous to imo_multicast_filter().
|
|
* The legacy KAME entry points in6_joingroup and in6_leavegroup()
|
|
are shimmed to in6_mc_join() and in6_mc_leave() respectively.
|
|
* IN6_LOOKUP_MULTI() has been deprecated and removed.
|
|
* IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
|
|
for MLDv1 have an additional 'timer' argument which is used to
|
|
jitter the initial membership report for the solicited-node
|
|
multicast membership on-link.
|
|
* This is not strictly needed for MLDv2, which already jitters
|
|
its report transmissions. However, the 'timer' argument is
|
|
preserved in case MLDv1 is active on the interface.
|
|
|
|
* The KAME linked-list based IPv6 membership implementation has
|
|
been refactored to use a vector similar to that used by the IPv4
|
|
stack.
|
|
Code which maintains a list of its own multicast memberships
|
|
internally, e.g. carp, has been updated to reflect the new
|
|
semantics.
|
|
|
|
* There is a known Lock Order Reversal (LOR) due to in6_setscope()
|
|
acquiring the IF_AFDATA_LOCK and being called within ip6_output().
|
|
Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
|
|
implementation constraint which needs to be addressed in HEAD.
|
|
|
|
For application developers:
|
|
|
|
* The changes are broadly similar to those made for the IPv4
|
|
stack.
|
|
|
|
* The use of IPv4 and IPv6 multicast socket options on the same
|
|
socket, using mapped addresses, HAS NOT been tested or supported.
|
|
|
|
* There are a number of issues with the implementation of various
|
|
IPv6 multicast APIs which need to be resolved in the API surface
|
|
before the implementation is fully compatible with KAME userland
|
|
use, and these are mostly to do with interface index treatment.
|
|
|
|
* The literature available discusses the use of either the delta / ASM
|
|
API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
|
|
using setsourcefilter(3)/getsourcefilter(3). For more information
|
|
please refer to RFC 3768, 'Socket Interface Extensions for
|
|
Multicast Source Filters'.
|
|
|
|
* Applications which use the published RFC 3678 APIs should be fine.
|
|
|
|
For systems administrators:
|
|
|
|
* The mtest(8) utility has been refactored to support IPv6, in
|
|
addition to IPv4. Interface addresses are no longer accepted
|
|
as arguments, their names must be used instead. The utility
|
|
will map the interface name to its first IPv4 address as
|
|
returned by getifaddrs(3).
|
|
|
|
* The ifmcstat(8) utility has also been updated to print the MLDv2
|
|
endpoint state and source filter lists via sysctl(3).
|
|
|
|
* The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
|
|
loopback of IPv6 multicast datagrams by default; it defaults to 1
|
|
to preserve the existing behaviour. Disabling multicast loopback is
|
|
recommended for optimal system performance.
|
|
|
|
* The IPv6 MROUTING code has been changed to examine this sysctl
|
|
instead of attempting to perform a group lookup before looping
|
|
back forwarded datagrams.
|
|
|
|
Bump __FreeBSD_version to 800084.
|
|
|
|
20090422:
|
|
Implement low-level Bluetooth HCI API.
|
|
Bump __FreeBSD_version to 800083.
|
|
|
|
20090419:
|
|
The layout of struct malloc_type, used by modules to register new
|
|
memory allocation types, has changed. Most modules will need to
|
|
be rebuilt or panics may be experienced.
|
|
Bump __FreeBSD_version to 800081.
|
|
|
|
20090415:
|
|
Anticipate overflowing inp_flags - add inp_flags2.
|
|
This changes most offsets in inpcb, so checking v4 connection
|
|
state will require a world rebuild.
|
|
Bump __FreeBSD_version to 800080.
|
|
|
|
20090415:
|
|
Add an llentry to struct route and struct route_in6. Modules
|
|
embedding a struct route will need to be recompiled.
|
|
Bump __FreeBSD_version to 800079.
|
|
|
|
20090414:
|
|
The size of rt_metrics_lite and by extension rtentry has changed.
|
|
Networking administration apps will need to be recompiled.
|
|
The route command now supports show as an alias for get, weighting
|
|
of routes, sticky and nostick flags to alter the behavior of stateful
|
|
load balancing.
|
|
Bump __FreeBSD_version to 800078.
|
|
|
|
20090408:
|
|
Do not use Giant for kbdmux(4) locking. This is wrong and
|
|
apparently causing more problems than it solves. This will
|
|
re-open the issue where interrupt handlers may race with
|
|
kbdmux(4) in polling mode. Typical symptoms include (but
|
|
not limited to) duplicated and/or missing characters when
|
|
low level console functions (such as gets) are used while
|
|
interrupts are enabled (for example geli password prompt,
|
|
mountroot prompt etc.). Disabling kbdmux(4) may help.
|
|
|
|
20090407:
|
|
The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
|
|
kernel modules referencing any of the above need to be recompiled.
|
|
Bump __FreeBSD_version to 800075.
|
|
|
|
20090320:
|
|
GEOM_PART has become the default partition slicer for storage devices,
|
|
replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
|
|
introduces some changes:
|
|
|
|
MSDOS/EBR: the devices created from MSDOS extended partition entries
|
|
(EBR) can be named differently than with GEOM_MBR and are now symlinks
|
|
to devices with offset-based names. fstabs may need to be modified.
|
|
|
|
BSD: the "geometry does not match label" warning is harmless in most
|
|
cases but it points to problems in file system misalignment with
|
|
disk geometry. The "c" partition is now implicit, covers the whole
|
|
top-level drive and cannot be (mis)used by users.
|
|
|
|
General: Kernel dumps are now not allowed to be written to devices
|
|
whose partition types indicate they are meant to be used for file
|
|
systems (or, in case of MSDOS partitions, as something else than
|
|
the "386BSD" type).
|
|
|
|
Most of these changes date approximately from 200812.
|
|
|
|
20090319:
|
|
The uscanner(4) driver has been removed from the kernel. This follows
|
|
Linux removing theirs in 2.6 and making libusb the default interface
|
|
(supported by sane).
|
|
|
|
20090319:
|
|
The multicast forwarding code has been cleaned up. netstat(1)
|
|
only relies on KVM now for printing bandwidth upcall meters.
|
|
The IPv4 and IPv6 modules are split into ip_mroute_mod and
|
|
ip6_mroute_mod respectively. The config(5) options for statically
|
|
compiling this code remain the same, i.e. 'options MROUTING'.
|
|
|
|
20090315:
|
|
Support for the IFF_NEEDSGIANT network interface flag has been
|
|
removed, which means that non-MPSAFE network device drivers are no
|
|
longer supported. In particular, if_ar, if_sr, and network device
|
|
drivers from the old (legacy) USB stack can no longer be built or
|
|
used.
|
|
|
|
20090313:
|
|
POSIX.1 Native Language Support (NLS) has been enabled in libc and
|
|
a bunch of new language catalog files have also been added.
|
|
This means that some common libc messages are now localized and
|
|
they depend on the LC_MESSAGES environmental variable.
|
|
|
|
20090313:
|
|
The k8temp(4) driver has been renamed to amdtemp(4) since
|
|
support for Family 10 and Family 11 CPU families was added.
|
|
|
|
20090309:
|
|
IGMPv3 and Source-Specific Multicast (SSM) have been merged
|
|
to the IPv4 stack. VIMAGE hooks are in but not yet used.
|
|
|
|
For kernel developers, the most important changes are that the
|
|
ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
|
|
and this lock has been downgraded to a non-recursive mutex.
|
|
|
|
Transport protocols (UDP, Raw IP) are now responsible for filtering
|
|
inbound multicast traffic according to group membership and source
|
|
filters. The imo_multicast_filter() KPI exists for this purpose.
|
|
Transports which do not use multicast (SCTP, TCP) already reject
|
|
multicast by default. Forwarding and receive performance may improve
|
|
as a mutex acquisition is no longer needed in the ip_input()
|
|
low-level input path. in_addmulti() and in_delmulti() are shimmed
|
|
to new KPIs which exist to support SSM in-kernel.
|
|
|
|
For application developers, it is recommended that loopback of
|
|
multicast datagrams be disabled for best performance, as this
|
|
will still cause the lock to be taken for each looped-back
|
|
datagram transmission. The net.inet.ip.mcast.loop sysctl may
|
|
be tuned to 0 to disable loopback by default; it defaults to 1
|
|
to preserve the existing behaviour.
|
|
|
|
For systems administrators, to obtain best performance with
|
|
multicast reception and multiple groups, it is always recommended
|
|
that a card with a suitably precise hash filter is used. Hash
|
|
collisions will still result in the lock being taken within the
|
|
transport protocol input path to check group membership.
|
|
|
|
If deploying FreeBSD in an environment with IGMP snooping switches,
|
|
it is recommended that the net.inet.igmp.sendlocal sysctl remain
|
|
enabled; this forces 224.0.0.0/24 group membership to be announced
|
|
via IGMP.
|
|
|
|
The size of 'struct igmpstat' has changed; netstat needs to be
|
|
recompiled to reflect this.
|
|
Bump __FreeBSD_version to 800070.
|
|
|
|
20090309:
|
|
libusb20.so.1 is now installed as libusb.so.1 and the ports system
|
|
updated to use it. This requires a buildworld/installworld in order to
|
|
update the library and dependencies (usbconfig, etc). Its advisable to
|
|
rebuild all ports which uses libusb. More specific directions are given
|
|
in the ports collection UPDATING file. Any /etc/libmap.conf entries for
|
|
libusb are no longer required and can be removed.
|
|
|
|
20090302:
|
|
A workaround is committed to allow the creation of System V shared
|
|
memory segment of size > 2 GB on the 64-bit architectures.
|
|
Due to a limitation of the existing ABI, the shm_segsz member
|
|
of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
|
|
wrong for large segments. Note that limits must be explicitly
|
|
raised to allow such segments to be created.
|
|
|
|
20090301:
|
|
The layout of struct ifnet has changed, requiring a rebuild of all
|
|
network device driver modules.
|
|
|
|
20090227:
|
|
The /dev handling for the new USB stack has changed, a
|
|
buildworld/installworld is required for libusb20.
|
|
|
|
20090223:
|
|
The new USB2 stack has now been permanently moved in and all kernel and
|
|
module names reverted to their previous values (eg, usb, ehci, ohci,
|
|
ums, ...). The old usb stack can be compiled in by prefixing the name
|
|
with the letter 'o', the old usb modules have been removed.
|
|
Updating entry 20090216 for xorg and 20090215 for libmap may still
|
|
apply.
|
|
|
|
20090217:
|
|
The rc.conf(5) option if_up_delay has been renamed to
|
|
defaultroute_delay to better reflect its purpose. If you have
|
|
customized this setting in /etc/rc.conf you need to update it to
|
|
use the new name.
|
|
|
|
20090216:
|
|
xorg 7.4 wants to configure its input devices via hald which does not
|
|
yet work with USB2. If the keyboard/mouse does not work in xorg then
|
|
add
|
|
Option "AllowEmptyInput" "off"
|
|
to your ServerLayout section. This will cause X to use the configured
|
|
kbd and mouse sections from your xorg.conf.
|
|
|
|
20090215:
|
|
The GENERIC kernels for all architectures now default to the new USB2
|
|
stack. No kernel config options or code have been removed so if a
|
|
problem arises please report it and optionally revert to the old USB
|
|
stack. If you are loading USB kernel modules or have a custom kernel
|
|
that includes GENERIC then ensure that usb names are also changed over,
|
|
eg uftdi -> usb2_serial_ftdi.
|
|
|
|
Older programs linked against the ports libusb 0.1 need to be
|
|
redirected to the new stack's libusb20. /etc/libmap.conf can
|
|
be used for this:
|
|
# Map old usb library to new one for usb2 stack
|
|
libusb-0.1.so.8 libusb20.so.1
|
|
|
|
20090209:
|
|
All USB ethernet devices now attach as interfaces under the name ueN
|
|
(eg. ue0). This is to provide a predictable name as vendors often
|
|
change usb chipsets in a product without notice.
|
|
|
|
20090203:
|
|
The ichsmb(4) driver has been changed to require SMBus slave
|
|
addresses be left-justified (xxxxxxx0b) rather than right-justified.
|
|
All of the other SMBus controller drivers require left-justified
|
|
slave addresses, so this change makes all the drivers provide the
|
|
same interface.
|
|
|
|
20090201:
|
|
INET6 statistics (struct ip6stat) was updated.
|
|
netstat(1) needs to be recompiled.
|
|
|
|
20090119:
|
|
NTFS has been removed from GENERIC kernel on amd64 to match
|
|
GENERIC on i386. Should not cause any issues since mount_ntfs(8)
|
|
will load ntfs.ko module automatically when NTFS support is
|
|
actually needed, unless ntfs.ko is not installed or security
|
|
level prohibits loading kernel modules. If either is the case,
|
|
"options NTFS" has to be added into kernel config.
|
|
|
|
20090115:
|
|
TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
|
|
New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
|
|
800061. User space tools that rely on the size of struct tcpcb in
|
|
tcp_var.h (e.g. sockstat) need to be recompiled.
|
|
|
|
20081225:
|
|
ng_tty(4) module updated to match the new TTY subsystem.
|
|
Due to API change, user-level applications must be updated.
|
|
New API support added to mpd5 CVS and expected to be present
|
|
in next mpd5.3 release.
|
|
|
|
20081219:
|
|
With __FreeBSD_version 800060 the makefs tool is part of
|
|
the base system (it was a port).
|
|
|
|
20081216:
|
|
The afdata and ifnet locks have been changed from mutexes to
|
|
rwlocks, network modules will need to be re-compiled.
|
|
|
|
20081214:
|
|
__FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
|
|
RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
|
|
The new code reduced struct rtentry{} by 16 bytes on 32-bit
|
|
architecture and 40 bytes on 64-bit architecture. The userland
|
|
applications "arp" and "ndp" have been updated accordingly.
|
|
The output from "netstat -r" shows only routing entries and
|
|
none of the L2 information.
|
|
|
|
20081130:
|
|
__FreeBSD_version 800057 marks the switchover from the
|
|
binary ath hal to source code. Users must add the line:
|
|
|
|
options AH_SUPPORT_AR5416
|
|
|
|
to their kernel config files when specifying:
|
|
|
|
device ath_hal
|
|
|
|
The ath_hal module no longer exists; the code is now compiled
|
|
together with the driver in the ath module. It is now
|
|
possible to tailor chip support (i.e. reduce the set of chips
|
|
and thereby the code size); consult ath_hal(4) for details.
|
|
|
|
20081121:
|
|
__FreeBSD_version 800054 adds memory barriers to
|
|
<machine/atomic.h>, new interfaces to ifnet to facilitate
|
|
multiple hardware transmit queues for cards that support
|
|
them, and a lock-less ring-buffer implementation to
|
|
enable drivers to more efficiently manage queueing of
|
|
packets.
|
|
|
|
20081117:
|
|
A new version of ZFS (version 13) has been merged to -HEAD.
|
|
This version has zpool attribute "listsnapshots" off by
|
|
default, which means "zfs list" does not show snapshots,
|
|
and is the same as Solaris behavior.
|
|
|
|
20081028:
|
|
dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
|
|
|
|
20081009:
|
|
The uhci, ohci, ehci and slhci USB Host controller drivers have
|
|
been put into separate modules. If you load the usb module
|
|
separately through loader.conf you will need to load the
|
|
appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
|
|
controller add the following to loader.conf:
|
|
|
|
uhci_load="YES"
|
|
ehci_load="YES"
|
|
|
|
20081009:
|
|
The ABI used by the PMC toolset has changed. Please keep
|
|
userland (libpmc(3)) and the kernel module (hwpmc(4)) in
|
|
sync.
|
|
|
|
20081009:
|
|
atapci kernel module now includes only generic PCI ATA
|
|
driver. AHCI driver moved to ataahci kernel module.
|
|
All vendor-specific code moved into separate kernel modules:
|
|
ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
|
|
atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
|
|
atamarvell, atamicron, atanational, atanetcell, atanvidia,
|
|
atapromise, ataserverworks, atasiliconimage, atasis, atavia
|
|
|
|
20080820:
|
|
The TTY subsystem of the kernel has been replaced by a new
|
|
implementation, which provides better scalability and an
|
|
improved driver model. Most common drivers have been migrated to
|
|
the new TTY subsystem, while others have not. The following
|
|
drivers have not yet been ported to the new TTY layer:
|
|
|
|
PCI/ISA:
|
|
cy, digi, rc, rp, sio
|
|
|
|
USB:
|
|
ubser, ucycom
|
|
|
|
Line disciplines:
|
|
ng_h4, ng_tty, ppp, sl, snp
|
|
|
|
Adding these drivers to your kernel configuration file shall
|
|
cause compilation to fail.
|
|
|
|
20080818:
|
|
ntpd has been upgraded to 4.2.4p5.
|
|
|
|
20080801:
|
|
OpenSSH has been upgraded to 5.1p1.
|
|
|
|
For many years, FreeBSD's version of OpenSSH preferred DSA
|
|
over RSA for host and user authentication keys. With this
|
|
upgrade, we've switched to the vendor's default of RSA over
|
|
DSA. This may cause upgraded clients to warn about unknown
|
|
host keys even for previously known hosts. Users should
|
|
follow the usual procedure for verifying host keys before
|
|
accepting the RSA key.
|
|
|
|
This can be circumvented by setting the "HostKeyAlgorithms"
|
|
option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
|
|
command line.
|
|
|
|
Please note that the sequence of keys offered for
|
|
authentication has been changed as well. You may want to
|
|
specify IdentityFile in a different order to revert this
|
|
behavior.
|
|
|
|
20080713:
|
|
The sio(4) driver has been removed from the i386 and amd64
|
|
kernel configuration files. This means uart(4) is now the
|
|
default serial port driver on those platforms as well.
|
|
|
|
To prevent collisions with the sio(4) driver, the uart(4) driver
|
|
uses different names for its device nodes. This means the
|
|
onboard serial port will now most likely be called "ttyu0"
|
|
instead of "ttyd0". You may need to reconfigure applications to
|
|
use the new device names.
|
|
|
|
When using the serial port as a boot console, be sure to update
|
|
/boot/device.hints and /etc/ttys before booting the new kernel.
|
|
If you forget to do so, you can still manually specify the hints
|
|
at the loader prompt:
|
|
|
|
set hint.uart.0.at="isa"
|
|
set hint.uart.0.port="0x3F8"
|
|
set hint.uart.0.flags="0x10"
|
|
set hint.uart.0.irq="4"
|
|
boot -s
|
|
|
|
20080609:
|
|
The gpt(8) utility has been removed. Use gpart(8) to partition
|
|
disks instead.
|
|
|
|
20080603:
|
|
The version that Linuxulator emulates was changed from 2.4.2
|
|
to 2.6.16. If you experience any problems with Linux binaries
|
|
please try to set sysctl compat.linux.osrelease to 2.4.2 and
|
|
if it fixes the problem contact emulation mailing list.
|
|
|
|
20080525:
|
|
ISDN4BSD (I4B) was removed from the src tree. You may need to
|
|
update a your kernel configuration and remove relevant entries.
|
|
|
|
20080509:
|
|
I have checked in code to support multiple routing tables.
|
|
See the man pages setfib(1) and setfib(2).
|
|
This is a hopefully backwards compatible version,
|
|
but to make use of it you need to compile your kernel
|
|
with options ROUTETABLES=2 (or more up to 16).
|
|
|
|
20080420:
|
|
The 802.11 wireless support was redone to enable multi-bss
|
|
operation on devices that are capable. The underlying device
|
|
is no longer used directly but instead wlanX devices are
|
|
cloned with ifconfig. This requires changes to rc.conf files.
|
|
For example, change:
|
|
ifconfig_ath0="WPA DHCP"
|
|
to
|
|
wlans_ath0=wlan0
|
|
ifconfig_wlan0="WPA DHCP"
|
|
see rc.conf(5) for more details. In addition, mergemaster of
|
|
/etc/rc.d is highly recommended. Simultaneous update of userland
|
|
and kernel wouldn't hurt either.
|
|
|
|
As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
|
|
modules were merged into the base wlan module. All references
|
|
to these modules (e.g. in kernel config files) must be removed.
|
|
|
|
20080408:
|
|
psm(4) has gained write(2) support in native operation level.
|
|
Arbitrary commands can be written to /dev/psm%d and status can
|
|
be read back from it. Therefore, an application is responsible
|
|
for status validation and error recovery. It is a no-op in
|
|
other operation levels.
|
|
|
|
20080312:
|
|
Support for KSE threading has been removed from the kernel. To
|
|
run legacy applications linked against KSE libmap.conf may
|
|
be used. The following libmap.conf may be used to ensure
|
|
compatibility with any prior release:
|
|
|
|
libpthread.so.1 libthr.so.1
|
|
libpthread.so.2 libthr.so.2
|
|
libkse.so.3 libthr.so.3
|
|
|
|
20080301:
|
|
The layout of struct vmspace has changed. This affects libkvm
|
|
and any executables that link against libkvm and use the
|
|
kvm_getprocs() function. In particular, but not exclusively,
|
|
it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
|
|
The effects are minimal, but it's advisable to upgrade world
|
|
nonetheless.
|
|
|
|
20080229:
|
|
The latest em driver no longer has support in it for the
|
|
82575 adapter, this is now moved to the igb driver. The
|
|
split was done to make new features that are incompatible
|
|
with older hardware easier to do.
|
|
|
|
20080220:
|
|
The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
|
|
likewise the kernel option is now GEOM_LINUX_LVM.
|
|
|
|
20080211:
|
|
The default NFS mount mode has changed from UDP to TCP for
|
|
increased reliability. If you rely on (insecurely) NFS
|
|
mounting across a firewall you may need to update your
|
|
firewall rules.
|
|
|
|
20080208:
|
|
Belatedly note the addition of m_collapse for compacting
|
|
mbuf chains.
|
|
|
|
20080126:
|
|
The fts(3) structures have been changed to use adequate
|
|
integer types for their members and so to be able to cope
|
|
with huge file trees. The old fts(3) ABI is preserved
|
|
through symbol versioning in libc, so third-party binaries
|
|
using fts(3) should still work, although they will not take
|
|
advantage of the extended types. At the same time, some
|
|
third-party software might fail to build after this change
|
|
due to unportable assumptions made in its source code about
|
|
fts(3) structure members. Such software should be fixed
|
|
by its vendor or, in the worst case, in the ports tree.
|
|
FreeBSD_version 800015 marks this change for the unlikely
|
|
case that a portable fix is impossible.
|
|
|
|
20080123:
|
|
To upgrade to -current after this date, you must be running
|
|
FreeBSD not older than 6.0-RELEASE. Upgrading to -current
|
|
from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
|
|
|
|
20071128:
|
|
The ADAPTIVE_GIANT kernel option has been retired because its
|
|
functionality is the default now.
|
|
|
|
20071118:
|
|
The AT keyboard emulation of sunkbd(4) has been turned on
|
|
by default. In order to make the special symbols of the Sun
|
|
keyboards driven by sunkbd(4) work under X these now have
|
|
to be configured the same way as Sun USB keyboards driven
|
|
by ukbd(4) (which also does AT keyboard emulation), f.e.:
|
|
|
|
Option "XkbLayout" "us"
|
|
Option "XkbRules" "xorg"
|
|
Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
|
|
|
|
20071024:
|
|
It has been decided that it is desirable to provide ABI
|
|
backwards compatibility to the FreeBSD 4/5/6 versions of the
|
|
PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
|
|
broken with the introduction of PCI domain support (see the
|
|
20070930 entry). Unfortunately, this required the ABI of
|
|
PCIOCGETCONF to be broken again in order to be able to
|
|
provide backwards compatibility to the old version of that
|
|
IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
|
|
again. As for prominent ports this affects neither pciutils
|
|
nor xorg-server this time, the hal port needs to be rebuilt
|
|
however.
|
|
|
|
20071020:
|
|
The misnamed kthread_create() and friends have been renamed
|
|
to kproc_create() etc. Many of the callers already
|
|
used kproc_start()..
|
|
I will return kthread_create() and friends in a while
|
|
with implementations that actually create threads, not procs.
|
|
Renaming corresponds with version 800002.
|
|
|
|
20071010:
|
|
RELENG_7 branched.
|
|
|
|
COMMON ITEMS:
|
|
|
|
General Notes
|
|
-------------
|
|
Avoid using make -j when upgrading. While generally safe, there are
|
|
sometimes problems using -j to upgrade. If your upgrade fails with
|
|
-j, please try again without -j. From time to time in the past there
|
|
have been problems using -j with buildworld and/or installworld. This
|
|
is especially true when upgrading between "distant" versions (eg one
|
|
that cross a major release boundary or several minor releases, or when
|
|
several months have passed on the -current branch).
|
|
|
|
Sometimes, obscure build problems are the result of environment
|
|
poisoning. This can happen because the make utility reads its
|
|
environment when searching for values for global variables. To run
|
|
your build attempts in an "environmental clean room", prefix all make
|
|
commands with 'env -i '. See the env(1) manual page for more details.
|
|
|
|
When upgrading from one major version to another it is generally best
|
|
to upgrade to the latest code in the currently installed branch first,
|
|
then do an upgrade to the new branch. This is the best-tested upgrade
|
|
path, and has the highest probability of being successful. Please try
|
|
this approach before reporting problems with a major version upgrade.
|
|
|
|
ZFS notes
|
|
---------
|
|
When upgrading the boot ZFS pool to a new version, always follow
|
|
these two steps:
|
|
|
|
1.) recompile and reinstall the ZFS boot loader and boot block
|
|
(this is part of "make buildworld" and "make installworld")
|
|
|
|
2.) update the ZFS boot block on your boot drive
|
|
|
|
The following example updates the ZFS boot block on the first
|
|
partition (freebsd-boot) of a GPT partitioned drive ad0:
|
|
"gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
|
|
|
|
Non-boot pools do not need these updates.
|
|
|
|
To build a kernel
|
|
-----------------
|
|
If you are updating from a prior version of FreeBSD (even one just
|
|
a few days old), you should follow this procedure. It is the most
|
|
failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
|
|
|
|
make kernel-toolchain
|
|
make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
|
|
make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
|
|
|
|
To test a kernel once
|
|
---------------------
|
|
If you just want to boot a kernel once (because you are not sure
|
|
if it works, or if you want to boot a known bad kernel to provide
|
|
debugging information) run
|
|
make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
|
|
nextboot -k testkernel
|
|
|
|
To just build a kernel when you know that it won't mess you up
|
|
--------------------------------------------------------------
|
|
This assumes you are already running a CURRENT system. Replace
|
|
${arch} with the architecture of your machine (e.g. "i386",
|
|
"arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
|
|
|
|
cd src/sys/${arch}/conf
|
|
config KERNEL_NAME_HERE
|
|
cd ../compile/KERNEL_NAME_HERE
|
|
make depend
|
|
make
|
|
make install
|
|
|
|
If this fails, go to the "To build a kernel" section.
|
|
|
|
To rebuild everything and install it on the current system.
|
|
-----------------------------------------------------------
|
|
# Note: sometimes if you are running current you gotta do more than
|
|
# is listed here if you are upgrading from a really old current.
|
|
|
|
<make sure you have good level 0 dumps>
|
|
make buildworld
|
|
make kernel KERNCONF=YOUR_KERNEL_HERE
|
|
[1]
|
|
<reboot in single user> [3]
|
|
mergemaster -p [5]
|
|
make installworld
|
|
mergemaster -i [4]
|
|
make delete-old [6]
|
|
<reboot>
|
|
|
|
|
|
To cross-install current onto a separate partition
|
|
--------------------------------------------------
|
|
# In this approach we use a separate partition to hold
|
|
# current's root, 'usr', and 'var' directories. A partition
|
|
# holding "/", "/usr" and "/var" should be about 2GB in
|
|
# size.
|
|
|
|
<make sure you have good level 0 dumps>
|
|
<boot into -stable>
|
|
make buildworld
|
|
make buildkernel KERNCONF=YOUR_KERNEL_HERE
|
|
<maybe newfs current's root partition>
|
|
<mount current's root partition on directory ${CURRENT_ROOT}>
|
|
make installworld DESTDIR=${CURRENT_ROOT}
|
|
make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
|
|
make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
|
|
cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
|
|
<edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
|
|
<reboot into current>
|
|
<do a "native" rebuild/install as described in the previous section>
|
|
<maybe install compatibility libraries from ports/misc/compat*>
|
|
<reboot>
|
|
|
|
|
|
To upgrade in-place from 8.x-stable to current
|
|
----------------------------------------------
|
|
<make sure you have good level 0 dumps>
|
|
make buildworld [9]
|
|
make kernel KERNCONF=YOUR_KERNEL_HERE [8]
|
|
[1]
|
|
<reboot in single user> [3]
|
|
mergemaster -p [5]
|
|
make installworld
|
|
mergemaster -i [4]
|
|
make delete-old [6]
|
|
<reboot>
|
|
|
|
Make sure that you've read the UPDATING file to understand the
|
|
tweaks to various things you need. At this point in the life
|
|
cycle of current, things change often and you are on your own
|
|
to cope. The defaults can also change, so please read ALL of
|
|
the UPDATING entries.
|
|
|
|
Also, if you are tracking -current, you must be subscribed to
|
|
freebsd-current@freebsd.org. Make sure that before you update
|
|
your sources that you have read and understood all the recent
|
|
messages there. If in doubt, please track -stable which has
|
|
much fewer pitfalls.
|
|
|
|
[1] If you have third party modules, such as vmware, you
|
|
should disable them at this point so they don't crash your
|
|
system on reboot.
|
|
|
|
[3] From the bootblocks, boot -s, and then do
|
|
fsck -p
|
|
mount -u /
|
|
mount -a
|
|
cd src
|
|
adjkerntz -i # if CMOS is wall time
|
|
Also, when doing a major release upgrade, it is required that
|
|
you boot into single user mode to do the installworld.
|
|
|
|
[4] Note: This step is non-optional. Failure to do this step
|
|
can result in a significant reduction in the functionality of the
|
|
system. Attempting to do it by hand is not recommended and those
|
|
that pursue this avenue should read this file carefully, as well
|
|
as the archives of freebsd-current and freebsd-hackers mailing lists
|
|
for potential gotchas. The -U option is also useful to consider.
|
|
See mergemaster(8) for more information.
|
|
|
|
[5] Usually this step is a noop. However, from time to time
|
|
you may need to do this if you get unknown user in the following
|
|
step. It never hurts to do it all the time. You may need to
|
|
install a new mergemaster (cd src/usr.sbin/mergemaster && make
|
|
install) after the buildworld before this step if you last updated
|
|
from current before 20020224 or from -stable before 20020408.
|
|
|
|
[6] This only deletes old files and directories. Old libraries
|
|
can be deleted by "make delete-old-libs", but you have to make
|
|
sure that no program is using those libraries anymore.
|
|
|
|
[8] In order to have a kernel that can run the 4.x binaries needed to
|
|
do an installworld, you must include the COMPAT_FREEBSD4 option in
|
|
your kernel. Failure to do so may leave you with a system that is
|
|
hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is
|
|
required to run the 5.x binaries on more recent kernels. And so on
|
|
for COMPAT_FREEBSD6 and COMPAT_FREEBSD7.
|
|
|
|
Make sure that you merge any new devices from GENERIC since the
|
|
last time you updated your kernel config file.
|
|
|
|
[9] When checking out sources, you must include the -P flag to have
|
|
cvs prune empty directories.
|
|
|
|
If CPUTYPE is defined in your /etc/make.conf, make sure to use the
|
|
"?=" instead of the "=" assignment operator, so that buildworld can
|
|
override the CPUTYPE if it needs to.
|
|
|
|
MAKEOBJDIRPREFIX must be defined in an environment variable, and
|
|
not on the command line, or in /etc/make.conf. buildworld will
|
|
warn if it is improperly defined.
|
|
FORMAT:
|
|
|
|
This file contains a list, in reverse chronological order, of major
|
|
breakages in tracking -current. It is not guaranteed to be a complete
|
|
list of such breakages, and only contains entries since October 10, 2007.
|
|
If you need to see UPDATING entries from before that date, you will need
|
|
to fetch an UPDATING file from an older FreeBSD release.
|
|
|
|
Copyright information:
|
|
|
|
Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
|
|
|
|
Redistribution, publication, translation and use, with or without
|
|
modification, in full or in part, in any form or format of this
|
|
document are permitted without further permission from the author.
|
|
|
|
THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
|
|
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
|
|
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
|
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
Contact Warner Losh if you have any questions about your use of
|
|
this document.
|
|
|
|
$FreeBSD$
|