[Bug 1684524] Re: package grub-pc 2.02~beta2-36ubuntu3.7 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 1

[Apport retracing service]

** Tags removed: need-duplicate-check

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Title:
  package grub-pc 2.02~beta2-36ubuntu3.7 failed to install/upgrade:
  subprocess installed pre-removal script returned error exit status 1

Status in grub2 package in Ubuntu:
  New

Bug description:
  installing grub2 efi 64

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: grub-pc 2.02~beta2-36ubuntu3.7
  ProcVersionSignature: Ubuntu 4.8.0-36.36~16.04.1-generic 4.8.11
  Uname: Linux 4.8.0-36-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.5
  Architecture: amd64
  CasperVersion: 1.376.2
  Date: Thu Apr 20 09:08:18 2017
  DpkgTerminalLog:
   Removing grub-gfxpayload-lists (0.7) ...
   Removing grub-pc (2.02~beta2-36ubuntu3.7) ...
   debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable
   dpkg: error processing package grub-pc (--remove):
    subprocess installed pre-removal script returned error exit status 1
  DuplicateSignature:
   package:grub-pc:2.02~beta2-36ubuntu3.7
   Removing grub-pc (2.02~beta2-36ubuntu3.7) ...
   debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable
   dpkg: error processing package grub-pc (--remove):
    subprocess installed pre-removal script returned error exit status 1
  ErrorMessage: subprocess installed pre-removal script returned error exit status 1
  LiveMediaBuild: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
  ProcCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/hostname.seed boot=casper quiet splash ---
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.1
   apt  1.2.19
  SourcePackage: grub2
  Title: package grub-pc 2.02~beta2-36ubuntu3.7 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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