+ - Don't #include linux/blkpg.h as that isn't safe. Just
+ include the content literally.
+ - Reduce maximum bitmap usage when working with bitmap files,
+ so that a only single-page allocations are made, even on
+ 64bit hosts with 4K pages.
+ - Close stray fd in mdassemble so that it can assemble stacked
+ devices
+ - If mdassemble finds an array already assembled, it marks it
+ read-write.
+ - Remove error in md_open if array is already active. This isn't
+ needed and gets in the ways if an array was created e.g. in
+ initramfs, but device doesn't yet exist in /dev.
+ - When --assemble --scan is run, if all arrays that could be found
+ have already been started, don't report an error.
+ - Fix a couple of bugs related to raid10 and the new 'offset' layout.
+
+Changes Prior to 2.5.4 release
+ - When creating devices in /dev/md/ create matching symlinks
+ from /dev. e.g. /dev/md0 -> /dev/md/0.
+ Allow this to be disabled in mdadm.conf or on command line.
+ - Fix some endian-ness issues with version-1 superblocks (affects
+ bigendian only).
+ - Fix endian problem with 'bitmap' metadata
+ - Allow a number (of partitions) after the 'yes' option to --auto=
+ This is particularly useful in the 'create' line in mdadm.conf.
+ - Remove partitions from any whole device that is made part of
+ an md array. This is a work-around for annoying messages
+ when the first block on some drive accidentally looks like a
+ partition table.
+
+Changes Prior to 2.5.3 release
+ - Document v0.91 superblocks in md.4
+ - Make GPL explicit in man pages.
+ - Fix recent breakage of starting degraded arrays.
+ - Tidyup automatic name choice for v-1 arrays:
+ /dev/md_d0 now becomes '0', not '_d0'.
+
+Changes Prior to 2.5.2 release
+ - Fix problem with compiling with gcc-2 compilers
+ - Fix compile problem of post-incrmenting a variable in a macro arg.
+ - Stop map_dev from returning [0:0], as that breaks things.
+ - Add 'Array Slot' line to --examine for version-1 superblocks
+ to make it a bit easier to see what is happening.
+ - Work around bug in --add handling for version-1 superblocks
+ in 2.6.17 (and prior).
+ - Make -assemble a bit more resilient to finding strange
+ information in superblocks.
+ - Don't claim newly added spares are InSync!! (don't know why that
+ code was ever in there)
+ - Work better when no 'ftw' is available, and check to see
+ if current uclibc provides ftw.
+ - Never use /etc/mdadm.conf if --config file is given (previously
+ some code used one, some used the other).
+
+Changes Prior to 2.5.1 release
+ - Various fixes for gcc warnings
+ - uclibc warnings
+ - Makefile improvements for static linking/intalling
+ - Makefile uninstall target
+ - Really fix return status of --examine
+ - Typos
+ - Byteorder stuff (again)
+ - Don't try to create devices with --manage or --grow
+ - allow default metadata (superblock) type to be specified
+ in mdadm.conf
+ - Get --stop to list devices stopped but honour --quiet
+ - remove libssl dependency
+ - Avoid some misdetection of overlapping partitions
+ - Fix memory leak in --monitor mode
+
+Changes Prior to 2.5 release
+ - Support 'mailfrom' line in mdadm.conf so the From: line in alert
+ emails can be explicitly set.
+ - Arrange that SparesMissing (which is similar in import to
+ DegradedArray) generates an Email.
+ - Assume "DEVICE partitions" if no DEVICE line is given.
+ - Support new 'offset' layout for raid10.
+ - When creating a bitmap file, choose a chunksize to limit number
+ of bitmap chunks to 2 million. More than this can cause kmalloc
+ failure.
+ - New 'CREATE' line in mdadm.conf for defaults such as owner, group,
+ mode and auto-flag
+ - --detail checks if array has been started or not and includes that
+ in report.
+ - When using --update=uuid on an array with a bitmap, update the
+ bitmap's uuid too.
+ - Add a copy of /proc/mdstat to the mail message sent by mdadm
+ --monitor.
+ - New flag --no-degraded to avoid starting arrays if there are
+ fewer devices available than last time the array was started.
+ This is only needed with --scan, as with --scan, that behaviour
+ is the default.
+ - Support for 'homehost' concept. This is a fairly major update.
+ It includes a configfile option and a command line option for
+ specifying a homehost, records that host in the superblock,
+ and reports the homehost where possible.
+ - Support for Auto Assembly. "mdadm -As" will, if provided with
+ the name of a homehost, try to assemble all arrays it can find
+ that were created for that homehost. See man pages for more details.
+
+Changes Prior to 2.4.1 release
+ - Honour --write-mostly when adding to an array without persistent
+ superblocks.
+ - Fix alignment problem in version-1 superblocks.
+ NOTE: This is an incompatable change affecting raid5 reshape.
+ If you want to reshape a raid5 using version-1 superblocks,
+ use 2.6.17-rc2 or later, and mdadm-2.4.1 or later.
+
+Changes Prior to 2.4 release
+ - Rewrite 'reshape' support including performing a backup
+ of the critical region for a raid5 growth, and restoring that
+ backup after a crash.
+ - Put a 'canary' at each end of the backup so a corruption
+ can be more easily detected.
+ - Remove useless 'ident' arguement from ->getinfo_super method.
+ - Support --backup-file for backing-up critical section during
+ growth.
+ - Erase old superblocks (of different versions) when creating new
+ array.
+ - Allow --monitor to work with arrays with >28 devices
+ - Report reshape information in --detail
+ - Handle symlinks in /dev better
+ - Fix mess in --detail output which a device is missing.
+ - Manpage tidyup
+ - Support 'bitmap=' in mdadm.conf for auto-assembling arrays with
+ write-intent bitmaps in separate files.
+ - Updates to md.4 man page including section on RESTRIPING and SYSFS
+
+Changes Prior to 2.3.1 release
+ - Fixed -O2 compile so I could make and RPM.
+ - Type cast number to be printed %llu so it compiles on 64bit
+ machines. (Thanks Luca).
+ - Stop using asm/byteorder.h - to make Redhat happy :-(
+ - Require bitmap files to have a '/' in their name.
+ - Error-check a few syscalls - code from SuSE package.
+
+Changes Prior to 2.3 release
+ - Try /etc/mdadm/mdadm.conf if /etc/mdadm.conf doesn't exist.
+ This provided compatability for Debian.
+ - Fixed for version-1 superblock:
+ report chunksize for raid6 and raid10
+ make sure device size used is a multiple of chunksize
+ - Fix "--assemble --scan" crash.
+ - Fix completely failure to create array on ppc64
+ - Fix memcmp in place of memcpy
+ - A few minor improvements to online help
+ - Clean up usage of 'long long' for used-size of devices, so
+ that it is possible to create a raid1 of 7TB devices!
+ - Make internal bitmaps work on 7TB raid1 arrays.
+ - Provide error message if --examine doesn't find any superblock.
+ - Report 'reshape' status in --examine - this depends on kernel
+ patches that are not yet finalised.
+ - Report bitmap status in --detail and --examine
+ - Default to v1 superblocks instead of v0.90 if the array
+ is too big for 0.90 to handle.
+ - Sort the output of "mdadm --detail --scan" so that it is
+ in a suitable order for assembling arrays. i.e. components come
+ before an array that they are part of.
+ - Print size of large reiserfs array properly went warning of
+ possible confilcts.
+
+Changes Prior to 2.2 release
+ - Assorted bug fixes
+ - Support write-intent-bitmaps on raid10
+ - Support little-endian (Rather than hostendian) bitmaps.
+ - Return correct error code from 'mdadm -S'
+ - Remove extra blank line from 'mdadm -Eb' output.
+ - Improve option parsing so that -a and -b do not have
+ optional arguements: the arg is either required or not
+ depending on context.
+ - Allow scanning of devices listed in /proc/partitions even
+ if they don't appear in /dev.
+ - Support --assume-clean in --create mode as well as --build
+ - Add support for --monitor to report to syslog: -y or --syslog.
+ Thanks to Ross Vandegrift
+ - --monitor now reports which device failed in a 'Fail' message
+ This broke with 2.6
+ - Improve chance of array starting properly after a crash.
+ mdadm was insisting the event numbers were identical, but this
+ isn't needed, and is a problem if the crash was while the metadata
+ was being updated.
+ - Support --update==uuid
+ - Added README.initramfs and mkinitramfs to help people use an
+ initram for starting md arrays at boot.
+
+Changes Prior to 2.1 release
+ - Fix assembling of raid10 array when devices are missing.
+ mdadm now correctly detects if a array is workable or not
+ depending on which devices are present, and so will correctly
+ handle "--assemble --force" if multiple devices have failed.
+ - Report raid10 layout in --examine output.
+ - Fix assembling of arrays that use the version-1 superblock and
+ have spares. Previously the spares would be ignored.
+ - Fix bug so that multiple drives can be re-added at once.
+ - Fix problem with hot-adding a bitmap to version-1-superblock
+ arrays.
+
+Changes Prior to 2.0
+ - Support assembling from byte-swapped superblocks
+ metadata type "0.swap" and --update=byteorder
+ - write-mostly and write-behind support for raid1.
+ - Support --name= and 'name=' config entry for identifying
+ arrays be name.
+ - RAID10 in man pages.
+ - Lot of minor manpage updates
+
+Changes Prior to 2.0-devel-3 release
+ - Assorted fixes for multiple bugs...
+ - Add test suite
+
+Changes Prior to 1.12.0 release
+ Several of these are backported from the Debian package