[Bug 1308758] [NEW] Ubuntu 14.04 install blocks Windows 8.1 from booting in dual boot

[Don Myers]

Public bug reported:

My computer is 5 months old. Was dual booting Windows 8.1 and Ubuntu
13.10. No issues. Did a clean install of 14.04 final beta to the
partition which had 13.10. Upon restart, I can only boot to Ubuntu. If I
try windows from grub menu, it reverts right back to Ubuntu. If I try
windows from a bios selection before loading grub, as soon as I select
windows, grub appears, and will only load Ubuntu. Ubuntu is installed in
efi mode. Ubuntu and windows both are in the efi partition. I ran the
boot-utility for saucy since I didn't find one for 14.10. It did not fix
the problem. As of now, I'm locked out of Windows 8.1. Another person
had the exactly the same thing happen both on the first install with
13.10 where Ubuntu would not boot, and now on the upgrade to 14.04 where
windows 8.1 will not boot. See
http://askubuntu.com/questions/447568/windows-8-entry-in-grub-not-
working

Version: Description:	Ubuntu Trusty Tahr (development branch)
Release:	14.04

Grub 2.02~beta2-8 -  All check boxes in synaptic for grub are grayed
with an ! point in.

** Affects: grub (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1308758

Title:
  Ubuntu 14.04 install blocks Windows 8.1 from booting in dual boot

Status in “grub” package in Ubuntu:
  New

Bug description:
  My computer is 5 months old. Was dual booting Windows 8.1 and Ubuntu
  13.10. No issues. Did a clean install of 14.04 final beta to the
  partition which had 13.10. Upon restart, I can only boot to Ubuntu. If
  I try windows from grub menu, it reverts right back to Ubuntu. If I
  try windows from a bios selection before loading grub, as soon as I
  select windows, grub appears, and will only load Ubuntu. Ubuntu is
  installed in efi mode. Ubuntu and windows both are in the efi
  partition. I ran the boot-utility for saucy since I didn't find one
  for 14.10. It did not fix the problem. As of now, I'm locked out of
  Windows 8.1. Another person had the exactly the same thing happen both
  on the first install with 13.10 where Ubuntu would not boot, and now
  on the upgrade to 14.04 where windows 8.1 will not boot. See
  http://askubuntu.com/questions/447568/windows-8-entry-in-grub-not-
  working

  Version: Description:	Ubuntu Trusty Tahr (development branch)
  Release:	14.04

  Grub 2.02~beta2-8 -  All check boxes in synaptic for grub are grayed
  with an ! point in.

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