[Bug 1923336] [NEW] package grub-efi-amd64-signed failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1

[Sai Vinoba]

Public bug reported:

Trying to install Ubuntu Unity 21.04 to grub-install shows error. Unable
to confirm if system is not bootable as the PC is a multiboot system and
booted from UM grub.

ProblemType: Package
DistroRelease: Ubuntu 21.04
Package: grub-efi-amd64-signed 1.169+2.04-1ubuntu45
ProcVersionSignature: Ubuntu 5.11.0-13.14-generic 5.11.7
Uname: Linux 5.11.0-13-generic x86_64
ApportVersion: 2.20.11-0ubuntu61
Architecture: amd64
CasperMD5CheckResult: pass
Date: Sun Apr 11 13:07:18 2021
ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2021-04-11 (0 days ago)
InstallationMedia: Ubuntu Unity 21.04
Python3Details: /usr/bin/python3.9, Python 3.9.2, python3-minimal, 3.9.2-2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.20.7.1ubuntu4
 apt  2.2.2
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.169+2.04-1ubuntu45 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)

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


** Tags: amd64 apport-package hirsute

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https://bugs.launchpad.net/bugs/1923336

Title:
  package grub-efi-amd64-signed 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:
  Trying to install Ubuntu Unity 21.04 to grub-install shows error.
  Unable to confirm if system is not bootable as the PC is a multiboot
  system and booted from UM grub.

  ProblemType: Package
  DistroRelease: Ubuntu 21.04
  Package: grub-efi-amd64-signed 1.169+2.04-1ubuntu45
  ProcVersionSignature: Ubuntu 5.11.0-13.14-generic 5.11.7
  Uname: Linux 5.11.0-13-generic x86_64
  ApportVersion: 2.20.11-0ubuntu61
  Architecture: amd64
  CasperMD5CheckResult: pass
  Date: Sun Apr 11 13:07:18 2021
  ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2021-04-11 (0 days ago)
  InstallationMedia: Ubuntu Unity 21.04
  Python3Details: /usr/bin/python3.9, Python 3.9.2, python3-minimal, 3.9.2-2
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.20.7.1ubuntu4
   apt  2.2.2
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.169+2.04-1ubuntu45 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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