[Bug 1022915] Re: mdadm in precise does not allow internal bitmap on version 1.2 arrays

[Steve Langasek]

Hello costin, or anyone else affected,

Accepted mdadm into precise-proposed. The package will build now and be
available at http://launchpad.net/ubuntu/+source/mdadm/3.2.5-1ubuntu0.1
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please change the bug tag from
verification-needed to verification-done.  If it does not, change the
tag to verification-failed.  In either case, details of your testing
will help us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: mdadm (Ubuntu Precise)
       Status: In Progress => Fix Committed

** Tags added: verification-needed

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https://bugs.launchpad.net/bugs/1022915

Title:
  mdadm in precise does not allow internal bitmap on version 1.2 arrays

Status in “mdadm” package in Ubuntu:
  Fix Released
Status in “mdadm” source package in Precise:
  Fix Committed
Status in “mdadm” source package in Quantal:
  Fix Released
Status in “mdadm” package in Debian:
  Fix Released

Bug description:
  [TEST CASE]
  (culled from Debian bug report)
  Assuming /dev/vdb and /dev/vdc are blank devices (BE CAREFUL!):

  
  # dd if=/dev/zero bs=1M count=100 of=/dev/vdb
  # dd if=/dev/zero bs=1M count=100 of=/dev/vdc
  # mdadm -C -l 1 -n 2 -e 1 --assume-clean /dev/md0 /dev/vdb /dev/vdc
  mdadm: array /dev/md0 started.
  # mdadm -G -b internal /dev/md0
  mdadm: failed to set internal bitmap.

  A fixed version should not fail to set the internal bitmap
  --------
  see debian bug http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=664088

  how do i get this fixed in 12.04 LTS?  do i just revert to using my
  good old debian stable or will someone care about this bug i've
  encountered just ten minutes after my first meeting with ubuntu lts?

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