[Bug 1468111] Re: gcdx64.efi should handle grub.cfg in /efi/boot.

[Michael Vogt]

** Also affects: grub2-signed (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: grub2-signed (Ubuntu Vivid)
       Status: New => In Progress

** Changed in: grub2-signed (Ubuntu Vivid)
   Importance: Undecided => High

** Changed in: grub2-signed (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1468111

Title:
  gcdx64.efi should handle grub.cfg in /efi/boot.

Status in grub2 package in Ubuntu:
  Fix Released
Status in grub2-signed package in Ubuntu:
  Fix Released
Status in grub2 source package in Vivid:
  Fix Committed
Status in grub2-signed source package in Vivid:
  Fix Committed

Bug description:
  TEST CASE:
  1. create ubuntu snappy image from 15.04/edge
  2. enable UEFI boot in the bios
  3. verify that it fails to boot and drops into a grub shell

  4. create ubuntu snappy image from 15.04/edge that got build with vivid-proposed
  5. boot and verify that uefi boot works this time.

  Snappy images have grub.cfg in $cmdpath/efi/boot, which then loads a
  better /efi/ubuntu/grub/grub.cfg which will look for the real file on
  the filesystem.

  Snappy personal image built as such currently fails to boot:
  sudo ubuntu-device-flash personal rolling --channel=edge --output image.img

  GRUB fails to find /boot/ which is the typical prefix, and fails to
  find /.disk/info which then really breaks $prefix.

  Workaround is to handle grub.cfg being in $cmdpath directly (in other
  words, in /efi/boot).

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