[Bug 1875332] Re: package grub-efi-amd64 2.02-2ubuntu8.15 failed to install/upgrade: subprocess installed post-installation script returned error exit status 255

[Apport retracing service]

** Tags removed: need-duplicate-check

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https://bugs.launchpad.net/bugs/1875332

Title:
  package grub-efi-amd64 2.02-2ubuntu8.15 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 255

Status in grub2 package in Ubuntu:
  New

Bug description:
  System reported an error, so this is what I'm doing.

  ProblemType: Package
  DistroRelease: Ubuntu 18.04
  Package: grub-efi-amd64 2.02-2ubuntu8.15
  ProcVersionSignature: Ubuntu 4.4.0-137.163-generic 4.4.144
  Uname: Linux 4.4.0-137-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  Date: Sun Apr 26 15:42:39 2020
  DuplicateSignature:
   package:grub-efi-amd64:2.02-2ubuntu8.15
   Setting up grub-efi-amd64 (2.02-2ubuntu8.15) ...
   dpkg: error processing package grub-efi-amd64 (--configure):
    subprocess installed post-installation script returned error exit status 255
  ErrorMessage: subprocess installed post-installation script returned error exit status 255
  InstallationDate: Installed on 2016-09-25 (1309 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  ProcCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-137-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.4
   apt  1.2.27
  SourcePackage: grub2
  Title: package grub-efi-amd64 2.02-2ubuntu8.15 failed to install/upgrade: subprocess installed post-installation script returned error exit status 255
  UpgradeStatus: Upgraded to bionic on 2018-12-21 (492 days ago)

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