mdadm - tool to administer Linux MD arrays (software RAID)

Property Value
Distribution Ubuntu 18.04 LTS (Bionic Beaver)
Repository Ubuntu Main amd64
Package name mdadm
Package version 4.0
Package release 2ubuntu1
Package architecture amd64
Package type deb
Installed size 1.14 KB
Download size 398.41 KB
Official Mirror
The mdadm utility can be used to create, manage, and monitor MD
(multi-disk) arrays for software RAID or multipath I/O.
This package automatically configures mdadm to assemble arrays during the
system startup process. If not needed, this functionality can be disabled.


Package Version Architecture Repository
mdadm_4.1~rc1-3~ubuntu18.04.1_i386.deb 4.1~rc1 i386 Ubuntu Updates Main
mdadm_4.1~rc1-3~ubuntu18.04.1_amd64.deb 4.1~rc1 amd64 Ubuntu Updates Main
mdadm_4.0-2ubuntu1_i386.deb 4.0 i386 Ubuntu Main
mdadm - - -


Name Value
debconf -
debconf >= 0.5
debconf-2.0 -
libc6 >= 2.27
lsb-base -
udev -


Type URL
Binary Package mdadm_4.0-2ubuntu1_amd64.deb
Source Package mdadm

Install Howto

  1. Update the package index:
    # sudo apt-get update
  2. Install mdadm deb package:
    # sudo apt-get install mdadm




2018-03-07 - Ryan Harper <>
mdadm (4.0-2ubuntu1) bionic; urgency=medium
* Cherry-pick upstream patch to ensure mdadm-last-resort services
only runs when it is needed LP: #1753786
- debian/patches/mdadm-last-resort-use-condition-path-exists.patch
2017-10-10 - Dimitri John Ledkov <>
mdadm (4.0-2) unstable; urgency=medium
* Ship mdadm-shutdown.service and suggest dracut-core. Users of systemd
with rootfs on Intel Matrix Raid and DDF external metadata-raid arrays
that require mdmon monitoring, may wish to install dracut-core package
and enable mdadm-shutdown.service. This will create a shutdown
initramfs, that systemd-shutdown can pivot to. This may result in an
improved shutdown behaviour with less hangs and synced raid
arrays. The generated initramfs will takeover mdmon monitoring, wait
for the arrays to be clean before stopping them and unmounting
everything and finally executing requested shutdown command.
* Bump standards version, no changes required.
* Bump debhelper to 9.
* Add second email address to avoid NMU warnings.
2017-06-22 - Dimitri John Ledkov <>
mdadm (4.0-1) unstable; urgency=medium
* New upstream release. LP: #1668128
* Drop warnings that raid arrays are missing from the initramfs
configuration. Instead have a positive message as to which arrays are
included in the initramfs.
* Add a warning to mkconf generated file that mdadm.conf is copied into
* Fix checkarray script bugs. LP: #1599428 Closes: #787950 Closes: #843665
2016-07-28 - Dimitri John Ledkov <>
mdadm (3.4-4) unstable; urgency=high
* Bring in changes from Ubuntu, to make the two packages in sync:
- Drop README.Debian, quite out-of-date w.r.t. current packaging.
- debian/control - on ubuntu, downgrade default-mta from Recommends to
- update-grub in postinst, if available (note does not update grub1).
- drop stderr warnings in postrm.
- drop presubj, out of date, and all types of bugs are welcomed.
- on ubuntu, install apport package hook.
- on ubuntu, install incremental assembly udev rules into udeb.
2016-07-26 - Dimitri John Ledkov <>
mdadm (3.4-3) unstable; urgency=high
* Fix UUID= grep for configured RAIDs to be case incesetive, regression from 3.4-2.
* Re-trigger block devices at the start of local-block mdadm loop, to
re-incrementally assemble disks that appeared before RAID
personalities were registered with the kernel.
* Also, invoke non-incremental assembly of raid arrays in the
local-block loop to support running mdadm with user-exported variables
specified via param.conf.
* Set Vcs- fields to dgit repositories.
* Closes: #830770, #830300.

See Also

Package Description
media-player-info_23-1_all.deb Media player identification files
memcached_1.5.6-0ubuntu1_amd64.deb high-performance memory object caching system
memtest86+_5.01-3ubuntu2_amd64.deb thorough real-mode memory tester
mesa-common-dev_18.0.0~rc5-1ubuntu1_amd64.deb Developer documentation for Mesa
mesa-vdpau-drivers_18.0.0~rc5-1ubuntu1_amd64.deb Mesa VDPAU video acceleration drivers
mime-construct_1.11+nmu2_all.deb construct/send MIME messages from the command line
mime-support_3.60ubuntu1_all.deb MIME files 'mime.types' & 'mailcap', and support programs
mir-client-platform-mesa-dev_0.31.1-0ubuntu1_amd64.deb Display server for Ubuntu - client platform library for Mesa development files
mir-doc_0.31.1-0ubuntu1_all.deb API documentation for mir
mir-renderer-gl-dev_0.31.1-0ubuntu1_amd64.deb Display server for Ubuntu - GL Renderer development files
mirtest-dev_0.31.1-0ubuntu1_amd64.deb Display server for Ubuntu - test development headers and library
miscfiles_1.5+dfsg-2_all.deb Dictionaries and other interesting files
mknbi_1.4.4-14_amd64.deb Create tagged images for Etherboot or Netboot
mlocate_0.26-2ubuntu3.1_amd64.deb quickly find files on the filesystem based on their name
mobile-broadband-provider-info_20170903-1_all.deb database of mobile broadband service providers