[Bug 1311725] Re: Installation crashed after grub setup on md array

[John Center]

The message logged when the grub-installer failed:

ubuntu grub-installer: grub-install: error: disk 'md126,1' not found.
ubuntu grub-installer: error: Running 'grub-install --force failed.

This was mdadm configured raid1 (imsm).

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https://bugs.launchpad.net/bugs/1311725

Title:
  Installation crashed after grub setup on md array

Status in “grub-installer” package in Ubuntu:
  Confirmed

Bug description:
  Grubs fails to properly setup on a md array (raid 1) and for this
  reason installation fails.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubiquity 2.18.7
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  CasperVersion: 1.340
  Date: Wed Apr 23 17:00:24 2014
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash --
  LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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