[Bug 1246910] Re: package shim-signed 1.3+0.4-0ubuntu3 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1.

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: shim-signed (Ubuntu Quantal)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1246910

Title:
  package shim-signed 1.3+0.4-0ubuntu3 failed to install/upgrade:
  ErrorMessage: subprocess installed post-installation script returned
  error exit status 1.

Status in “shim-signed” package in Ubuntu:
  Fix Released
Status in “shim-signed” source package in Precise:
  Confirmed
Status in “shim-signed” source package in Quantal:
  Confirmed
Status in “shim-signed” source package in Raring:
  Confirmed
Status in “shim-signed” source package in Saucy:
  Confirmed

Bug description:
  [SRU justification]
  If users install the grub-pc package on a machine booted under Secure Boot, the system will still be bootable but there will be avoidable package upgrade errors when installing a new version of the shim-signed package.  We should ensure that UEFI users don't accidentally get their package system into a wedged state, by ensuring shim-signed pulls in the necessary efi grub package as a dependency and calls grub-install in a way that works reliably even when grub-pc has been installed.

  [Test case]
  1. Install on a machine that boots using UEFI.
  3. Install the grub-pc package.
  4. Upgrade to the shim-signed package from -updates.
  5. Verify that the upgrade fails.
  6. Install the shim-signed package from -proposed.
  7. Verify that the upgrade succeeds.

  [Regression potential]
  Minimal.  The --target=x86_64-efi option to grub-install is supported in all relevant versions, and adding it explicitly should not cause any failures in scenarios where the shim-signed package is currently working.

  
  Upgrade from 13.04 to 13.10 broke off.
  Warning about possibly unusable system appeared.

  ProblemType: Package
  DistroRelease: Ubuntu 13.10
  Package: shim-signed 1.3+0.4-0ubuntu3
  ProcVersionSignature: Ubuntu 3.8.0-32.47-generic 3.8.13.10
  Uname: Linux 3.8.0-32-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.1
  Architecture: amd64
  Date: Thu Oct 31 22:50:18 2013
  DuplicateSignature: package:shim-signed:1.3+0.4-0ubuntu3:ErrorMessage: subprocess installed post-installation script returned error exit status 1
  ErrorMessage: ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2013-04-05 (209 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MarkForUpload: True
  SourcePackage: shim-signed
  Title: package shim-signed 1.3+0.4-0ubuntu3 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: Upgraded to saucy on 2013-10-31 (0 days ago)

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