[Bug 1054773] Re: mdadm: support external metadata arrays correctly (from debian)

[Jan Kleinsorge]

I should add that this is a problem only if the system / is part of the
array itself and therefore must be setup in initrd.

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Title:
  mdadm: support external metadata arrays correctly (from debian)

Status in “mdadm” package in Ubuntu:
  New

Bug description:
  The mdadm package is currently seriously broken for Intel
  IMSM/"fakeraid" setups since mdmon is not part of the initrd (tested
  on quantal alpha3) and therefore only sets up a read-only array which
  breaks the boot process. If booted from a live cd and entered via a
  jail root, mdadm the devices can be properly mounted. Manually moving
  mdmon into the initrd allows for booting, but halting is more complex:

  A patch has been proposed here [1] and I would suggest to also fix this problem ASAP, as this is a 100% show stopper. 
  Please refer to the discussion in  [1] for further details.

  [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=684708

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