[Bug 1411504] Re: Failure to boot Windows 8.1 when Secure Boot is enabled

[Chris Murphy]

*** This bug is a duplicate of bug 1091464 ***
    https://bugs.launchpad.net/bugs/1091464

** This bug has been marked a duplicate of bug 1091464
   Unable to chainload Windows 8 with Secure Boot enabled

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https://bugs.launchpad.net/bugs/1411504

Title:
  Failure to boot Windows 8.1 when Secure Boot is enabled

Status in grub2 package in Ubuntu:
  New

Bug description:
  When choosing the Windows Boot Manager option in the GRUB menu, I get the attached error message which includes reference to bootmgfw.efi and
  error: cannot load image.

  If Secure Boot is disabled, this menu entry works. If Secure Boot is
  enabled, the menu entry fails per above. If Secure Boot is enabled,
  and I'm able to get to the computer firmware's boot manager selection
  screen to choose Windows Boot Manager, that works.

  So it seems to be a problem with GRUB chainloading bootmgfw.efi and
  maintaining the Secure Boot chain. Or it's a firmware bug.

  Hardware is a Dell XPS 13 9333 (late 2013).
  --- 
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.10
  InstallationDate: Installed on 2015-01-16 (0 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  Package: grub2 (not installed)
  ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
  Tags:  utopic
  Uname: Linux 3.16.0-23-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True

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