[Bug 1060404] Re: update-grub runs and fails in containers

[Colin Watson]

I think this is very much a temporary fix, and it would be better to
make update-grub able to generate a basic grub.cfg, that perhaps might
need you to set GRUB_MODULES in order to work properly but would at
least be in principle usable.  However, it's OK for 12.10.

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Title:
  update-grub runs and fails in containers

Status in “grub2” package in Ubuntu:
  Confirmed

Bug description:
  If grub is installed in a container (as happens, for instance, with
  the ubuntu-cloud template) then an update of grub or linux-image will
  cause update-grub to be run.  It tries, finds it can't access the root
  device, fails, and causes the update to fail.

  It would be better for update-grub to detect that it is in a container
  and simply exit 0, so that the apt-get can succeed.  I'm attaching a
  debdiff which does that.

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