[Bug 1931011] Re: package grub-efi-amd64-signed 1.167.2+2.04-1ubuntu44.2 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 32

[Apport retracing service]

** Tags removed: need-duplicate-check

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Title:
  package grub-efi-amd64-signed 1.167.2+2.04-1ubuntu44.2 failed to
  install/upgrade: installed grub-efi-amd64-signed package post-
  installation script subprocess returned error exit status 32

Status in grub2-signed package in Ubuntu:
  Confirmed

Bug description:
  Notification popped up during software update, warned me that if not
  installed, the data on the USB drive partitioned with backups of
  system (Timeshift) and data (Backup), may be corrupted.

  ProblemType: Package
  DistroRelease: Ubuntu 20.04
  Package: grub-efi-amd64-signed 1.167.2+2.04-1ubuntu44.2
  ProcVersionSignature: Ubuntu 5.8.0-53.60~20.04.1-generic 5.8.18
  Uname: Linux 5.8.0-53-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.18
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Sun Jun  6 21:35:18 2021
  DuplicateSignature:
   package:grub-efi-amd64-signed:1.167.2+2.04-1ubuntu44.2
   Setting up grub-efi-amd64-signed (1.167.2+2.04-1ubuntu44.2) ...
   mount: /var/lib/grub/esp: special device /, does not exist.
   dpkg: error processing package grub-efi-amd64-signed (--configure):
    installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 32
  ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 32
  InstallationDate: Installed on 2020-12-26 (162 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.19.7ubuntu3
   apt  2.0.5
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.167.2+2.04-1ubuntu44.2 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 32
  UpgradeStatus: No upgrade log present (probably fresh install)

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