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+mdadm (3.2.2-1) unstable; urgency=low
+ Metadata format change requires recent Grub
+ The following only applies to users who want to let the grub-pc bootloader
+ load the kernel directly off a RAID device created with mdadm 3.x and
+ default values, or when the metadata version is explicitly set using -e.
+ Specifically, this includes all arrays created during or after the
+ installation of Debian squeeze (mdadm-3.1.4+8efb9d1). Arrays created with
+ older mdadm versions, and RAIDs created with the command-line option
+ -e 0.9 are not affected.
+ Versions of grub-pc older than 1.98+20100720-1 will not be able to boot
+ directly off a RAID with the 1.x metadata formats (the new default is 1.2).
+ To ensure a bootable system, please make sure to use grub-pc 1.98+20100720-1
+ or later, which is provided by Debian squeeze. An unbootable system may be
+ rescued with Super Grub2 Disk (
+ or grml (
+ -- Scott Schaefer <> Wed, 27 Jul 2011 20:21:50 -0400
+mdadm (3.1.4-1+8efb9d1) unstable; urgency=low
+ Default metadata format for newly created arrays has changed from
+ 0.90 to 1.2. Location of the superblock is now 4Kb from the start
+ of the device, instead of at the end of the device for 0.90.
+ The change from 0.9 to 1.x lifted many restrictions of the old
+ metadata format, and change in location (from end to 4k after
+ start for 1.2) reduced chances to confuse a raid array with
+ filesystem inside it. It is now less easy to mount a component
+ device as separate filesystem by incident, thus destroying the
+ array.
+ Also, chunk size by default is 512K (was 64K) and bitmap chunk size
+ is 64Mb.
+ -- Michael Tokarev <> Sat, 10 Sep 2011 13:35:12 +0400
+mdadm (2.6.7-2) unstable; urgency=low
+ /dev/disk symlinks:
+ mdadm now creates symlinks in /dev/disk/by-id, using the template
+ md-uuid-* for the array UUIDs and md-name-* for any names assigned to
+ arrays (version-1 superblocks only). Thanks to Suse for the udev rules
+ file.
+ mdrun removed:
+ This version also removes mdrun once and for all. If you are still using
+ mdrun, please ensure that you have a valid /etc/mdadm/mdadm.conf file (run
+ /usr/share/mdadm/mkconf --generate to get one), and run
+ mdadm --assemble --scan --auto=yes
+ -- martin f. krafft <> Wed, 02 Jul 2008 10:57:32 +0200
+mdadm (2.5.3.git200608201206-1) unstable; urgency=low
+ This version makes mdadm.conf mandatory. If you do not have such a file, it
+ will be created for you.
+ You must verify the contents of this file and ensure that it represents your
+ local configuration. See /usr/share/doc/mdadm/README.upgrading-2.5.3.gz for
+ more information.
+ -- martin f. krafft <> Sun, 20 Aug 2006 21:58:43 +0100
+mdadm (2.5-1) unstable; urgency=low
+ mdrun has been (finally) obsoleted, and an appropriate warning message is
+ written to the console if you (or a script) attempts to run it. If you
+ cannot live without mdrun, you can disable the warning by setting
+ USE_DEPRECATED_MDRUN=1 in /etc/default/mdadm. Note that mdrun will *not* be
+ supported. Please also see /usr/share/doc/mdadm/README.mdrun .
+ -- martin f. krafft <> Tue, 30 May 2006 23:25:13 +0200
+mdadm (2.4.1-5) unstable; urgency=low
+ This version drops the automatic generation of the /etc/mdadm/mdadm.conf
+ file on every boot (if it was missing). This means that you need to ensure
+ that you have a valid configuration file. If none is present during package
+ configuration, mdadm *will* try to generate one, but it will only contain
+ information about arrays that were running at the time of package
+ configuration. Arrays not listed in the configuration file will *not* be
+ started automatically after boot (with the exception of the root partition).
+ If you want to recreate your configuration file, either figure out what it
+ should contain from the mdadm.conf(5) manpage, or simply assemble and run
+ all the arrays the way you like it, then run
+ /usr/share/mdadm/mkconf force-generate /etc/mdadm/mdadm.conf
+ -- martin f. krafft <> Sat, 03 Jun 2006 17:45:47 +0200
+mdadm (2.4.1-1) unstable; urgency=low
+ As of version 2.3, mdadm uses /etc/mdadm.conf as its main configuration
+ file, and falls back to /etc/mdadm/mdadm.conf if the former is not found.
+ Since Debian uses /etc/mdadm/mdadm.conf as the configuration file path, this
+ order was reverted: Debian's mdadm reads /etc/mdadm/mdadm.conf as its main
+ file and falls back to /etc/mdadm.conf if the former is not found.
+ An incompatible change in the reshaping of RAID 5 arrays was made in this
+ upstream release. If you want to reshape a RAID 5 array with a version-1
+ superblock, please make sure to use mdadm 2.4.1 and at least a 2.6.17-rc2
+ kernel.
+ -- martin f. krafft <> Tue, 16 May 2006 13:07:49 -0500