[Bug 1842518] Re: package grub-efi-amd64-signed 1.34.20+2.02~beta2-9ubuntu1.17 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Apport retracing service]

** Tags removed: need-duplicate-check

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https://bugs.launchpad.net/bugs/1842518

Title:
  package grub-efi-amd64-signed 1.34.20+2.02~beta2-9ubuntu1.17 failed to
  install/upgrade: subprocess installed post-installation script
  returned error exit status 1

Status in grub2-signed package in Ubuntu:
  New

Bug description:
  Was trying to upgrade VLC to play hevc files

  ProblemType: Package
  DistroRelease: Ubuntu 14.04
  Package: grub-efi-amd64-signed 1.34.20+2.02~beta2-9ubuntu1.17
  ProcVersionSignature: Ubuntu 3.13.0-36.63+hwe3-generic 3.13.11.6
  Uname: Linux 3.13.0-36-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.14.1-0ubuntu3.29
  Architecture: amd64
  Date: Wed Sep  4 03:14:18 2019
  DistributionChannelDescriptor:
   # This is a distribution channel descriptor
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-trusty-amd64-20140620-0
  DuplicateSignature: package:grub-efi-amd64-signed:1.34.20+2.02~beta2-9ubuntu1.17:subprocess installed post-installation script returned error exit status 1
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2016-01-15 (1327 days ago)
  InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary 20140620-04:25
  RelatedPackageVersions:
   dpkg 1.17.5ubuntu5.8
   apt  1.0.1ubuntu2.23
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.34.20+2.02~beta2-9ubuntu1.17 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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