[Bug 1336946] Re: grub-setup sometimes segfaults when installing to RAID

[Launchpad Bug Tracker]

** Branch linked: lp:~ubuntu-core-dev/ubuntu/precise/grub2/precise

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https://bugs.launchpad.net/bugs/1336946

Title:
  grub-setup sometimes segfaults when installing to RAID

Status in “grub2” package in Ubuntu:
  Fix Released
Status in “grub2” source package in Precise:
  In Progress

Bug description:
  SRU justification:

  [Impact] grub-setup sometimes crashes on things that aren't plain BIOS disks, such as RAID.
  [Test Case] Upgrade grub-pc on a system configured to install GRUB to /dev/md<something>.  (The reporter seems to be able to reproduce this reliably.)
  [Regression Potential] Limited to grub-setup, but the patch is tiny and just an additional check, so I think regressions are extremely unlikely.

  Original report follows:

  During package configuration `grub-setup` crashed with a segmentation
  fault.

       /usr/sbin/grub-setup --force --directory=/boot/grub --device-
  map=/boot/grub/device.map /dev/md1

  Big thanks to Colin to help me in #ubuntu-installer on
  <irc.freenode.net>. Wth the test package from the PPA with a patch
  applied, `grub-setup` does not crash anymore.

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