[Bug 1800506] Re: package grub-efi-amd64 2.02+dfsg1-5ubuntu8 failed to install/upgrade: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 1

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** Tags removed: need-duplicate-check

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Title:
  package grub-efi-amd64 2.02+dfsg1-5ubuntu8 failed to install/upgrade:
  installed grub-efi-amd64 package post-installation script subprocess
  returned error exit status 1

Status in grub2 package in Ubuntu:
  New

Bug description:
  I don't exactly know what is the error about but everytime I start
  ubuntu it gives an error.

  ProblemType: Package
  DistroRelease: Ubuntu 18.10
  Package: grub-efi-amd64 2.02+dfsg1-5ubuntu8
  ProcVersionSignature: Ubuntu 4.15.0-38.41-generic 4.15.18
  Uname: Linux 4.15.0-38-generic x86_64
  ApportVersion: 2.20.10-0ubuntu13
  Architecture: amd64
  Date: Mon Oct 29 22:08:16 2018
  ErrorMessage: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2016-07-31 (819 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-38-generic root=UUID=7dc0ddae-9b46-4a60-973a-e87785222665 ro quiet splash
  Python3Details: /usr/bin/python3.6, Python 3.6.7rc1, python3-minimal, 3.6.6-1
  PythonDetails: /usr/bin/python2.7, Python 2.7.15+, python-minimal, 2.7.15-3
  RelatedPackageVersions:
   dpkg 1.19.0.5ubuntu5
   apt  1.7.0
  SourcePackage: grub2
  Title: package grub-efi-amd64 2.02+dfsg1-5ubuntu8 failed to install/upgrade: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 1
  UpgradeStatus: Upgraded to cosmic on 2018-10-29 (0 days ago)

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