[Bug 1724586] Re: I can't install updates. package grub-pc 2.02~beta2-36ubuntu3.12 failed to install/upgrade: subprocess installed post-installation script returned error exit status 30

[Apport retracing service]

** Tags removed: need-duplicate-check

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Title:
  I can't install updates.  package grub-pc 2.02~beta2-36ubuntu3.12
  failed to install/upgrade: subprocess installed post-installation
  script returned error exit status 30

Status in grub2 package in Ubuntu:
  New

Bug description:
  My apologies if this isn't supposed to be submitted as a bug.  It
  opened this page automatically.

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: grub-pc 2.02~beta2-36ubuntu3.12
  ProcVersionSignature: Ubuntu 4.4.0-97.120-generic 4.4.87
  Uname: Linux 4.4.0-97-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.10
  Architecture: amd64
  Date: Wed Oct 18 09:50:22 2017
  DeviceMap: (hd0)	/dev/sda
  DuplicateSignature:
   package:grub-pc:2.02~beta2-36ubuntu3.12
   Setting up grub-pc (2.02~beta2-36ubuntu3.12) ...
   dpkg: error processing package grub-pc (--configure):
    subprocess installed post-installation script returned error exit status 30
  ErrorMessage: subprocess installed post-installation script returned error exit status 30
  InstallationDate: Installed on 2017-01-23 (267 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-97-generic root=UUID=16e5b847-3318-405a-b6c6-63a1d6391886 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.2
   apt  1.2.24
  SourcePackage: grub2
  Title: package grub-pc 2.02~beta2-36ubuntu3.12 failed to install/upgrade: subprocess installed post-installation script returned error exit status 30
  UpgradeStatus: No upgrade log present (probably fresh install)

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