[Bug 1170584] Re: installer unresponsive after attempting grub installation on partitionable raid

[Phillip Susi]

You should be installing grub to the individual boot disk(s) rather than
the array.

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https://bugs.launchpad.net/bugs/1170584

Title:
  installer unresponsive after attempting grub installation on
  partitionable raid

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

Bug description:
  1. boot to livecd (desktop)
  2. $ sudo apt-get install mdadm
  3. $ sudo mdadm -C /dev/md_d2 -l 1 -n 1 -f -x 2 /dev/vd[abc]
  4. run installer, tell it to use entire md_d2 disk for lvm

  Results in:
  Executing 'grub-install /dev/vda' failed.
  This is a fatal error.

  Somewhat related to bug #1058129 and bug #1068137.

  After looking around a bit and possibly mounting things that were not mounted:
  $ sudo grub-install --root-directory=/target /dev/md_d2
  Installation finished. No error reported.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: ubiquity 2.14.3
  ProcVersionSignature: Ubuntu 3.8.0-18.28-generic 3.8.6
  Uname: Linux 3.8.0-18-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8
  Architecture: amd64
  CasperVersion: 1.330
  Date: Fri Apr 19 09:28:08 2013
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  LiveMediaBuild: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130418)
  MarkForUpload: True
  ProcEnviron:
   TERM=unknown
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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