[Bug 1926853] Re: package grub-efi-amd64-signed 1.167+2.04-1ubuntu44 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 255

[Apport retracing service]

** Tags removed: need-duplicate-check

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https://bugs.launchpad.net/bugs/1926853

Title:
  package grub-efi-amd64-signed 1.167+2.04-1ubuntu44 failed to
  install/upgrade: installed grub-efi-amd64-signed package post-
  installation script subprocess returned error exit status 255

Status in grub2-signed package in Ubuntu:
  New

Bug description:
  failed to install on update

  ProblemType: Package
  DistroRelease: Ubuntu 20.04
  Package: grub-efi-amd64-signed 1.167+2.04-1ubuntu44
  ProcVersionSignature: Ubuntu 5.8.0-50.56~20.04.1-generic 5.8.18
  Uname: Linux 5.8.0-50-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.16
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Fri Apr 30 09:08:57 2021
  ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 255
  InstallationDate: Installed on 2020-10-02 (211 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.19.7ubuntu3
   apt  2.0.5
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.167+2.04-1ubuntu44 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 255
  UpgradeStatus: No upgrade log present (probably fresh install)

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