[Bug 1004376] Re: Grub2 with RAID+LVM no longer fits in 62 sectors

[Phillip Susi]

It is not done easily.  You should be able to do it with a livecd using
gparted, but it will take a very, very long time since it has to move
all of the existing data, and a crash in the middle would result in a
total loss.  The best way to do this is to backup the whole system,
format, and restore.

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Title:
  Grub2 with RAID+LVM no longer fits in 62 sectors

Status in “grub2” package in Ubuntu:
  Triaged

Bug description:
  Hi,
  During installation of Ubuntu 12.04, I can not finish the installation correctly, because the installation of grub goes wrong.
  Indeed, during the installation of grub I have a recurring error as follows:
  /usr/sbin/grub-setup: warn: Your embedding area is unusually small.  core.img 
  won't fit in it..
  /usr/sbin/grub-setup: error: embedding is not possible, but this is required 
  when the root device is on a RAID array or LVM volume.

  I'm running on 64bits plateforme, with LVM over RAID partitions. The same installation works perfectly with Ubuntu 10.04.3 LTS.
  Here are more informations about my partitions : http://paste.ubuntu.com/1003855/

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