[Bug 905607] Re: software raid component drives erroneously detected

[Matthias Andree]

I am having the same problem, and the patch solves the problem for me on
precise. Please upgrade the os-prober package.

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Title:
  software raid component drives erroneously detected

Status in “os-prober” package in Ubuntu:
  Confirmed

Bug description:
  Recent versions of os-prober have been erroneously reporting the
  component drives of a software (mdadm) array which results in grub2
  adding boot entries for these drives.  For example, my / filesystem is
  mounted on /dev/md0 and /proc/mdstat contains:

  md0 : active raid1 sdb1[1] sda1[0]
        24000960 blocks [2/2] [UU]

  Running os-prober reports:

  /dev/sda1:Ubuntu 11.10 (11.10):Ubuntu:linux
  /dev/sdb1:Ubuntu 11.10 (11.10):Ubuntu2:linux

  The problem is a missing backslash on line 84 of /usr/bin/os-prober
  which reads:

  "dev="${word%%[*}"

  and should instead read:

  dev="${word%%\[*}"

  I have confirmed that this bug is present in Ubuntu Oneiric and
  Precise.

  John

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