[Bug 987354] Re: [Oneiric -> Precise upgrade] error: no such partition

[TJ]

** Bug watch added: Debian Bug tracker #668920
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=668920

** Also affects: grub2 (Debian) via
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=668920
   Importance: Unknown
       Status: Unknown

** Summary changed:

- [Oneiric -> Precise upgrade] error: no such partition 
+ error: no such partition. grub-pc fails to detect mdraid partitions

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https://bugs.launchpad.net/bugs/987354

Title:
  error: no such partition. grub-pc fails to detect mdraid partitions

Status in “grub2” package in Ubuntu:
  In Progress
Status in “grub2” package in Debian:
  Unknown

Bug description:
  After upgrading Oneiric to Precise on a 32-bit server using:

  do-release-upgrade -d

  On reboot GRUB2 totally fails to find its 2nd stage files. It reports:

  error: no such partition

  This also happens when entering the rescue command-line and trying to
  do operations such as:

  grub> ls
  error: no such partition

  Initial inspection of the grub environment indicates the UUIDs and
  grub prefix are as they were prior to the update.

  It is not possible to do anything with GRUB2 that requires it to
  find/load second stage files - which puts most of its command-line
  tools out of reach.

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