[Bug 1968470] Re: Apt update fails on package grub-pc. package grub-efi-amd64 (not installed) failed to install/upgrade: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 128

[Erich Eickmeyer ]

Thank you for taking the time to report this issue and helping to make
Ubuntu better. Examining the information you have given us, this does
not appear to be a bug report so we are closing it and converting it to
a question in the support tracker. We understand the difficulties you
are facing, but it is better to raise problems you are having in the
support tracker at https://answers.launchpad.net/ubuntu if you are
uncertain if they are bugs. You can also find help with your problem in
the support forum of your local Ubuntu community http://loco.ubuntu.com/
or asking at https://askubuntu.com or https://ubuntuforums.org. For help
on reporting bugs, see https://help.ubuntu.com/community/ReportingBugs.

** Changed in: grub2-unsigned (Ubuntu)
       Status: New => Invalid

** Converted to question:
   https://answers.launchpad.net/ubuntu/+source/grub2-unsigned/+question/701285

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https://bugs.launchpad.net/bugs/1968470

Title:
  Apt update fails on package grub-pc.   package grub-efi-amd64 (not
  installed) failed to install/upgrade: installed grub-efi-amd64 package
  post-installation script subprocess returned error exit status 128

Status in grub2-unsigned package in Ubuntu:
  Invalid

Bug description:
  I tried the first 3 methods in the following article to no avail:
  https://itsfoss.com/dpkg-returned-an-error-code-1/

  
  dpkg: error processing package grub-pc (--configure):
   installed grub-pc package post-installation script subprocess returned error exit status 20
  Errors were encountered while processing:
   grub-pc
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  ProblemType: Package
  DistroRelease: Ubuntu 20.04
  Package: grub-efi-amd64 (not installed)
  ProcVersionSignature: Ubuntu 5.13.0-1021.24~20.04.1-azure 5.13.19
  Uname: Linux 5.13.0-1021-azure x86_64
  ApportVersion: 2.20.11-0ubuntu27.21
  AptOrdering:
   grub-gfxpayload-lists:amd64: Remove
   grub-pc:amd64: Remove
   grub-efi-amd64:amd64: Install
   NULL: ConfigurePending
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Sun Apr 10 08:46:57 2022
  DpkgTerminalLog:
   Preparing to unpack .../grub-efi-amd64_2.04-1ubuntu44.2_amd64.deb ...
   Unpacking grub-efi-amd64 (2.04-1ubuntu44.2) ...
   Setting up grub-efi-amd64 (2.04-1ubuntu44.2) ...
   dpkg: error processing package grub-efi-amd64 (--configure):
    installed grub-efi-amd64 package post-installation script subprocess returned error exit status 128
  ErrorMessage: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 128
  InstallationDate: Installed on 2022-01-29 (70 days ago)
  InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
  Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.19.7ubuntu3
   apt  2.0.6
  SourcePackage: grub2-unsigned
  Title: package grub-efi-amd64 (not installed) failed to install/upgrade: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 128
  UpgradeStatus: No upgrade log present (probably fresh install)

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