[Bug 1817411] Re: package grub-efi-amd64-signed 1.66.20+2.02~beta2-36ubuntu3.20 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Apport retracing service]

** Tags removed: need-duplicate-check

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https://bugs.launchpad.net/bugs/1817411

Title:
  package grub-efi-amd64-signed 1.66.20+2.02~beta2-36ubuntu3.20 failed
  to install/upgrade: subprocess installed post-installation script
  returned error exit status 1

Status in grub2-signed package in Ubuntu:
  New

Bug description:
  errer after update

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: grub-efi-amd64-signed 1.66.20+2.02~beta2-36ubuntu3.20
  ProcVersionSignature: Ubuntu 4.15.0-45.48~16.04.1-generic 4.15.18
  Uname: Linux 4.15.0-45-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  Date: Sat Feb 23 13:50:59 2019
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2017-03-13 (711 days ago)
  InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.5
   apt  1.2.29ubuntu0.1
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.66.20+2.02~beta2-36ubuntu3.20 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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