[Bug 1707834] [NEW] package grub-efi-amd64-signed 1.66.12+2.02~beta2-36ubuntu3.12 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[cristina]

Public bug reported:

I tried updating lubuntu 16.04 LTS 64bit and got this error. I have a
MacBook Late 2007.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: grub-efi-amd64-signed 1.66.12+2.02~beta2-36ubuntu3.12
ProcVersionSignature: Ubuntu 4.4.0-87.110-generic 4.4.73
Uname: Linux 4.4.0-87-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
Date: Mon Jul 31 17:22:40 2017
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2017-05-10 (82 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.2
 apt  1.2.20
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.66.12+2.02~beta2-36ubuntu3.12 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

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


** Tags: amd64 apport-package xenial

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https://bugs.launchpad.net/bugs/1707834

Title:
  package grub-efi-amd64-signed 1.66.12+2.02~beta2-36ubuntu3.12 failed
  to install/upgrade: subprocess installed post-installation script
  returned error exit status 1

Status in grub2-signed package in Ubuntu:
  New

Bug description:
  I tried updating lubuntu 16.04 LTS 64bit and got this error. I have a
  MacBook Late 2007.

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: grub-efi-amd64-signed 1.66.12+2.02~beta2-36ubuntu3.12
  ProcVersionSignature: Ubuntu 4.4.0-87.110-generic 4.4.73
  Uname: Linux 4.4.0-87-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.10
  Architecture: amd64
  Date: Mon Jul 31 17:22:40 2017
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2017-05-10 (82 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.2
   apt  1.2.20
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.66.12+2.02~beta2-36ubuntu3.12 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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