[Bug 1912813] [NEW] package grub-efi-amd64-signed 1.142.9+2.04-1ubuntu26.7 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 255

[Tomdkat]

Public bug reported:

Ever since upgrading to Ubuntu 20.04.1 from Ubuntu 18.04.5, this error
occurs each time I update the system.  The system continues to boot ok
(I'm using it now) but this error keeps appearing.  I'm not sure how to
correct this.

Thanks!

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: grub-efi-amd64-signed 1.142.9+2.04-1ubuntu26.7
ProcVersionSignature: Ubuntu 5.4.0-62.70-generic 5.4.78
Uname: Linux 5.4.0-62-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.14
AptOrdering:
 dnsmasq-base:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
CasperMD5CheckResult: skip
Date: Fri Jan 22 06:35:28 2021
ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 255
InstallationDate: Installed on 2019-06-16 (585 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.18, python-is-python2, 2.7.17-4
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt  2.0.2ubuntu0.2
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.142.9+2.04-1ubuntu26.7 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 255
UpgradeStatus: Upgraded to focal on 2020-10-05 (109 days ago)

** Affects: grub2-signed (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-package focal third-party-packages

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https://bugs.launchpad.net/bugs/1912813

Title:
  package grub-efi-amd64-signed 1.142.9+2.04-1ubuntu26.7 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:
  Ever since upgrading to Ubuntu 20.04.1 from Ubuntu 18.04.5, this error
  occurs each time I update the system.  The system continues to boot ok
  (I'm using it now) but this error keeps appearing.  I'm not sure how
  to correct this.

  Thanks!

  ProblemType: Package
  DistroRelease: Ubuntu 20.04
  Package: grub-efi-amd64-signed 1.142.9+2.04-1ubuntu26.7
  ProcVersionSignature: Ubuntu 5.4.0-62.70-generic 5.4.78
  Uname: Linux 5.4.0-62-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.14
  AptOrdering:
   dnsmasq-base:amd64: Install
   NULL: ConfigurePending
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Fri Jan 22 06:35:28 2021
  ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 255
  InstallationDate: Installed on 2019-06-16 (585 days ago)
  InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
  PythonDetails: /usr/bin/python2.7, Python 2.7.18, python-is-python2, 2.7.17-4
  RelatedPackageVersions:
   dpkg 1.19.7ubuntu3
   apt  2.0.2ubuntu0.2
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.142.9+2.04-1ubuntu26.7 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 255
  UpgradeStatus: Upgraded to focal on 2020-10-05 (109 days ago)

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