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

[costin]

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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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