[Bug 990642] Re: Installing 12.04 caused grub-installer to fail, "Fatal error unable to install grub"

[Richard Idiens]

Grub failed to install when attempting to replace 16.04 with 18.04

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https://bugs.launchpad.net/bugs/990642

Title:
  Installing 12.04 caused grub-installer to fail, "Fatal error unable to
  install grub"

Status in grub-installer package in Ubuntu:
  Confirmed

Bug description:
  I have a raid 1 array (disk a) and another disk that doesn't have raid
  enabled (disk b). I'm not that savvy in terms of understanding file
  systems and the nomenclature.

  Nonethless, i decided to wipe my hard drive and install 12.04 64bit.
  After half way through the installation an error indicated that grub
  has failed to install and that it was a fatal error.

  I had 11.10 64bit installed on disk b and it wouldn't boot it couldn't
  find the partition (i filed a previous question). So i've decided to
  just wipe the disk and install 12.04 on disk b. I do have windows 7
  installed on disk A.

  I hypothesize that that maybe the issue; but i'm not sure how to fix
  the problem.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: ubiquity 2.10.16
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  Uname: Linux 3.2.0-23-generic x86_64
  ApportVersion: 2.0.1-0ubuntu5
  Architecture: amd64
  CasperVersion: 1.315
  Date: Sat Apr 28 12:31:43 2012
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  ProcEnviron:
   LANGUAGE=en_US.UTF-8
   TERM=linux
   PATH=(custom, no user)
   LANG=en_US.UTF-8
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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