Public bug reported:

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

** Affects: os-prober (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: patch

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https://bugs.launchpad.net/bugs/905607

Title:
  software raid component drives erroneously detected

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