[Bug 1861644] Re: package grub-pc 2.02~beta2-36ubuntu3.23 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

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** Tags removed: need-duplicate-check

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https://bugs.launchpad.net/bugs/1861644

Title:
  package grub-pc 2.02~beta2-36ubuntu3.23 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 2

Status in grub2 package in Ubuntu:
  New

Bug description:
  After upgrading from 14.04 to 16.04 - I couldn't install or update any
  softares.

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: grub-pc 2.02~beta2-36ubuntu3.23
  ProcVersionSignature: Ubuntu 4.4.0-131.157-generic 4.4.134
  Uname: Linux 4.4.0-131-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.21
  Architecture: amd64
  Date: Sat Feb  1 12:43:24 2020
  ErrorMessage: subprocess installed post-installation script returned error exit status 2
  InstallationDate: Installed on 2015-04-10 (1759 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  InvalidGrubScript: /etc/grub.d/npm-debug.log
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-131-generic root=UUID=07935254-34c0-419a-b6d8-8b99ac1a2600 ro recovery nomodeset
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.6
   apt  1.2.32
  SourcePackage: grub2
  Title: package grub-pc 2.02~beta2-36ubuntu3.23 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
  UpgradeStatus: No upgrade log present (probably fresh install)

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