[Bug 1917517] Re: package grub-efi-amd64-signed 1.163+2.04-1ubuntu40 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1

[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/1917517

Title:
  package grub-efi-amd64-signed 1.163+2.04-1ubuntu40 failed to
  install/upgrade: installed grub-efi-amd64-signed package post-
  installation script subprocess returned error exit status 1

Status in grub2-signed package in Ubuntu:
  New

Bug description:
  fresh install

  ProblemType: Package
  DistroRelease: Ubuntu 21.04
  Package: grub-efi-amd64-signed 1.163+2.04-1ubuntu40
  ProcVersionSignature: Ubuntu 5.8.0-36.40+21.04.1-generic 5.8.18
  Uname: Linux 5.8.0-36-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu59
  Architecture: amd64
  CasperMD5CheckResult: unknown
  Date: Tue Mar  2 19:18:10 2021
  ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
  Python3Details: /usr/bin/python3.9, Python 3.9.2, python3-minimal, 3.9.1-1
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.20.7.1ubuntu2
   apt  2.2.0
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.163+2.04-1ubuntu40 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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