[Bug 999076] Re: mdadm 0.9 metadata at the end of the disk confuses grub

[Marcus Tomlinson]

This release of Ubuntu is no longer receiving maintenance updates. If
this is still an issue on a maintained version of Ubuntu please let us
know.

** Changed in: grub2 (Ubuntu)
       Status: Triaged => Incomplete

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https://bugs.launchpad.net/bugs/999076

Title:
  mdadm 0.9 metadata at the end of the disk confuses grub

Status in grub:
  Unknown
Status in grub2 package in Ubuntu:
  Incomplete

Bug description:
  When using mdadm metadata format 0.9 and the partition is at the end
  of the disk, grub can not tell whether it is the partition or the
  whole disk that is the raid component, resulting in errors like:

  error: found two disks with the index 0 for RAID md0.
  error: found two disks with the index 3 for RAID md0.
  error: superfluous RAID member (4 found).
  error: superfluous RAID member (4 found).
  error: superfluous RAID member (4 found).

  This can cause unexpected failure after upgrading from 10.04.

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