[Bug 1495570] Re: Re-installation of Ubuntu 14.04.2 LTS alongside Windows 8.1 failed.

[Geoff Ratahi]

The laptop was purchased in February 2015 with Windows 8.1 pre-
installed. A couple of months later, I installed Ubuntu 12.04.2 from a
usb install stick which I had created, alongside the Windows 8.1 system.

The installation worked fine as a dual boot system even though I had to
go to the boot options menu to select Ubuntu until yesterday
(14.09.2015) when the option for Ubuntu from the boot options menu was
not amongst the boot options available!

Therefore, I backed up the files that I required to a usb drive and
proceeded to try a fresh re-install of Ubuntu 14.04.2 alongside Windows
8.1. However, this time, the installation was unsuccessful at the point
of creating the grub configuration file, the installation process
returning a "fatal error" at this stage!

I am now going to try several different options in Terminal given in the
askubuntu.co forum as follows:

Option 1 - sudo grub-install /dev/sda; sudo grub-mkconfig -0
/boot/grub/grub.cfg

Option 2 - sudo apt-get install grub-efi

Option 3 - Type "grub" in Terminal, hit tab a few times, looking for
"grub-efi-install" or "grub2-install" or something ending in "-install"

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https://bugs.launchpad.net/bugs/1495570

Title:
  Re-installation of Ubuntu 14.04.2 LTS alongside Windows 8.1 failed.

Status in grub-installer package in Ubuntu:
  Incomplete

Bug description:
  Switching between OS's causes grub file to be overwritten by Windows?

  My technical knowledge is very limited therefore I am unable to solve
  the problem?

  Original installation was Ubuntu 14.04.2 but had been upgraded to
  Ubuntu 14.04.3.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubiquity 2.18.8.6 [modified: lib/partman/automatically_partition/question]
  ProcVersionSignature: Ubuntu 3.16.0-30.40~14.04.1-generic 3.16.7-ckt3
  Uname: Linux 3.16.0-30-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.7
  Architecture: amd64
  CasperVersion: 1.340
  Date: Tue Sep 15 03:05:33 2015
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed cdrom-detect/try-usb=true noprompt floppy.allowed_drive_mask=0 ignore_uuid boot=casper quiet splash --
  LiveMediaBuild: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  ProcEnviron:
   LANGUAGE=en_NZ.UTF-8
   PATH=(custom, no user)
   LANG=en_NZ.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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