[Bug 1947822] Re: package grub-common 2.04-1ubuntu26.13 failed to install/upgrade: installed grub-common package post-installation script subprocess returned error exit status 1

[Mate Kukri]

*** This bug is a duplicate of bug 2069726 ***
    https://bugs.launchpad.net/bugs/2069726

** This bug has been marked a duplicate of bug 2069726
   outdated grub2 install failure catch-all

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Title:
  package grub-common 2.04-1ubuntu26.13 failed to install/upgrade:
  installed grub-common package post-installation script subprocess
  returned error exit status 1

Status in grub2 package in Ubuntu:
  New

Bug description:
  I couldn't able to update the packages.

  ProblemType: Package
  DistroRelease: Ubuntu 20.04
  Package: grub-common 2.04-1ubuntu26.13
  ProcVersionSignature: Ubuntu 5.11.0-37.41~20.04.2-generic 5.11.22
  Uname: Linux 5.11.0-37-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu27.20
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Wed Oct 20 09:58:42 2021
  ErrorMessage: installed grub-common package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2020-12-07 (316 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  ProcCmdLine: BOOT_IMAGE=/BOOT/ubuntu_4m7naj@/vmlinuz-5.11.0-37-generic root=ZFS=rpool/ROOT/ubuntu_4m7naj ro quiet splash vt.handoff=1
  Python3Details: /usr/bin/python3.8, Python 3.8.10, 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  2.0.6
  SourcePackage: grub2
  Title: package grub-common 2.04-1ubuntu26.13 failed to install/upgrade: installed grub-common package post-installation script subprocess returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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