[Bug 1918070] Re: package grub-efi-amd64-signed 1.155.4+2.04-1ubuntu35.4 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status

[Steve Langasek]

*** This bug is a duplicate of bug 1928352 ***
    https://bugs.launchpad.net/bugs/1928352

Thank you for taking the time to report this bug and helping to make
Ubuntu better. This particular bug has already been reported and is a
duplicate of bug 1928352, so it is being marked as such. Please look at
the other bug report to see if there is any missing information that you
can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

** This bug has been marked a duplicate of bug 1928352
   package shim-signed 1.47+15.4-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1

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https://bugs.launchpad.net/bugs/1918070

Title:
  package grub-efi-amd64-signed 1.155.4+2.04-1ubuntu35.4 failed to
  install/upgrade: installed grub-efi-amd64-signed package post-
  installation script subprocess returned error exit status

Status in grub2-signed package in Ubuntu:
  Confirmed

Bug description:
  Crashed after machine startup, just after logging-in.
  I'm not sure whether that's a installation fault or a software error.

  ProblemType: Package
  DistroRelease: Ubuntu 20.10
  Package: grub-efi-amd64-signed 1.155.4+2.04-1ubuntu35.4
  ProcVersionSignature: Ubuntu 5.8.0-44.50-generic 5.8.18
  Uname: Linux 5.8.0-44-generic x86_64
  ApportVersion: 2.20.11-0ubuntu50
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Sun Mar  7 15:02:55 2021
  ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2021-03-07 (0 days ago)
  InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
  Python3Details: /usr/bin/python3.8, Python 3.8.6, python3-minimal, 3.8.6-0ubuntu1
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.20.5ubuntu2
   apt  2.1.10
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.155.4+2.04-1ubuntu35.4 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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