[Bug 1015211] Re: Ubiquity installed grub-efi when it should have installed grub-pc

[Steve Langasek]

On Sat, Jan 12, 2013 at 04:03:11AM -0000, YannUbuntu wrote:
> The problem is that Ubiquity chooses grub-pc or grub-efi according to
> the mode in which the install disk is booted, which is not always the
> mode in which the firware is set up to boot the HDD.

This is pathological behavior on the part of the firmware.  If the system is
configured in UEFI mode, it should prefer UEFI consistently for all devices,
not just for removable ones.  The problem statement in this bug is incorrect
- ubiquity *should* install grub-efi when booted under UEFI.

The only reasonable way to address this problem would be to consistently
install both grub-pc and grub-efi on all amd64 systems, regardless of how
they're booted at install time.

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https://bugs.launchpad.net/bugs/1015211

Title:
  Ubiquity installed grub-efi when it should have installed grub-pc

Status in “ubiquity” package in Ubuntu:
  Confirmed

Bug description:
  Goal:
  Create a dual boot system with a pre installed Win7x64 and Ubuntu Desktop 12.04 LTS amd64 with Grub installed as the boot-loader in the MBR of sda.

  Problem symptoms:
  After Ubuntu installation from the Live CD along side Win7x64, Grub wont start at boot-up of the system. It boots straight into Win7.

  Hypothesis:
  The Ubuntu Desktop 12.04 amd64 Live CD, was booted with an UEFI boot sequence although the hard disk structure is MSDOS with MBR. This fools ubuquity into installing Grub in EFI mode and does not install grub-pc into the MBR.

  For full information please view:
  http://ubuntuforums.org/showthread.php?p=12030957#post12030957

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