[Bug 960092] Re: Latest update renders system unbootable "error: no such partition"

[Alan Pope]

Hmm. It seems to be triggered by having multiple disks in the host. My
/dev/sda (which I don't boot off) has previously had a linux install on
it, and I reused the disk by creating one big partition and formatting
it for /home. I would never have wiped grub off the master boot record.

So I'd suggest it's not that my grub was misconfigured, but merely that
there was an old grub on the start of the disk in the mbr. I don't think
this is an unreasonable or massively unusual situation these days as
people re-use disks and move them about between machines.

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Title:
  Latest update renders system unbootable "error: no such partition"

Status in “grub2” package in Ubuntu:
  Invalid

Bug description:
  Just did my daily 12.04 updates and ended up with an unbootable
  system:-

  error: no such partition.
  error: no such partition.
  error: no such partition.

  Press any key to continue...

  I had to chroot into the install to reinstall grub and the kernel to
  get it back to a bootable state.

  See attached photos.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: grub (not installed)
  ProcVersionSignature: Ubuntu 3.2.0-19.30-generic 3.2.11
  Uname: Linux 3.2.0-19-generic x86_64
  ApportVersion: 1.94.1-0ubuntu2
  Architecture: amd64
  Date: Tue Mar 20 11:00:34 2012
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120102)
  SourcePackage: grub
  UpgradeStatus: No upgrade log present (probably fresh install)

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