[Bug 1469995] Re: grub-efi-amd64-signed Forced Uninstall Causes Boot Failure

[Robie Basak]

You should be able to fix this by either:

1) Not agreeing to remove grub-efi-amd64-signed but instead waiting for
an update for it (and filing a bug pointing out that it is unavailable
as appropriate) - but of course I appreciate that users don't magically
know this and shouldn't have to.

2) Later installing grub-efi-amd64-signed again.

If the second fix doesn't work, please report the output of "apt-cache
policy grub-efi-amd64 grub-efi-amd64-signed".

There was a short window of a few hours just after the grub2 update was
released on 8 July when the signed package was not released concurrently
and apt-get would have (wrongly) recommended removal of the signed
package as a consequence. This was due to a process issue. Since then
though, the problem should not recur as the grub-efi-amd64-signed was
released after a few hours. However manual recovery is required
(unfortunately) for those affected by using the second step above.

So I'm marking this Fix Released as it should be now fixed, but if it is
not please explain and reopen.

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

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https://bugs.launchpad.net/bugs/1469995

Title:
  grub-efi-amd64-signed Forced Uninstall Causes Boot Failure

Status in One Hundred Papercuts:
  Triaged
Status in grub2-signed package in Ubuntu:
  Fix Released

Bug description:
  Yesterday, I tried to run an apt-get install when it said it could continue because of some "partial" something or other and I noticed it wanted to remove "grub-efi-amd64-signed".
  I went ahead and let it update on it's own as it desired.

  Then a little while ago I had to reboot for an unrelated reason, but I
  find myself no longer able to boot. Not just not able to boot, but
  there is no GRUB or EFI shell.

  Boot-Repair from Live CD wouldn't complete due to "purge cancelled" for "grub-efi-amd64-signed".
  While in Live-CD, I'd chroot to my system and run "grub-install" and "update-grub", and while they both succeeded, nothing had changed on boot.

  I ended up disabling Secure Boot for now, but wanted to let you know
  something went horribly wrong.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: grub-efi-amd64-signed (not installed)
  Uname: Linux 4.0.0-040000-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Jun 30 02:58:32 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-06-18 (11 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  SourcePackage: grub2-signed
  UpgradeStatus: No upgrade log present (probably fresh install)

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