[Bug 1897350] Re: package grub-efi-amd64-signed 1.142.6+2.04-1ubuntu26.4 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 128

[Apport retracing service]

** Tags removed: need-duplicate-check

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Title:
  package grub-efi-amd64-signed 1.142.6+2.04-1ubuntu26.4 failed to
  install/upgrade: installed grub-efi-amd64-signed package post-
  installation script subprocess returned error exit status 128

Status in grub2-signed package in Ubuntu:
  New

Bug description:
  During a recent update  it is always looking for a non-existing EFI
  partition but the EFI partition is sda5 FAT32. When I continue there
  will be a grub error causing Kernel panic in the next boot.

  ProblemType: Package
  DistroRelease: Ubuntu 20.04
  Package: grub-efi-amd64-signed 1.142.6+2.04-1ubuntu26.4
  ProcVersionSignature: Ubuntu 5.4.0-48.52-generic 5.4.60
  Uname: Linux 5.4.0-48-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu27.8
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Thu Sep 24 20:48:19 2020
  ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 128
  Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.19.7ubuntu3
   apt  2.0.2ubuntu0.1
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.142.6+2.04-1ubuntu26.4 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 128
  UpgradeStatus: No upgrade log present (probably fresh install)

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