[Bug 1724558] Re: package grub-pc:i386 2.02~beta2-36ubuntu3.14 failed to install/upgrade: subprocess installed post-installation script returned error exit status 10

[Phillip Susi]

You somehow got the 32 bit version of grub installed even though you are
running a 64 bit system.  You should remove the 32 bit version:

sudo apt-get remove os-prober:i386 grub-common:i386 grub2-common:i386
grub-pc:i386 grub-pc-bin:i386 grub-gfxpayload-lists:i386

** Changed in: grub2 (Ubuntu)
       Status: New => Invalid

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Title:
  package grub-pc:i386 2.02~beta2-36ubuntu3.14 failed to
  install/upgrade: subprocess installed post-installation script
  returned error exit status 10

Status in grub2 package in Ubuntu:
  Invalid

Bug description:
  .

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: grub-pc:i386 2.02~beta2-36ubuntu3.14
  Uname: Linux 4.10.0-041000-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.10
  Architecture: amd64
  Date: Wed Oct 18 10:16:41 2017
  DuplicateSignature:
   package:grub-pc:i386:2.02~beta2-36ubuntu3.14
   Setting up unattended-upgrades (0.90ubuntu0.8) ...
   dpkg: error processing package unattended-upgrades (--configure):
    subprocess installed post-installation script returned error exit status 10
  ErrorMessage: subprocess installed post-installation script returned error exit status 10
  InstallationDate: Installed on 2016-09-13 (399 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  PackageArchitecture: i386
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-041000-generic root=UUID=244b80cd-658d-4f27-aee7-24443e6fef95 ro splash quiet
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.2
   apt  1.2.25
  SourcePackage: grub2
  Title: package grub-pc:i386 2.02~beta2-36ubuntu3.14 failed to install/upgrade: subprocess installed post-installation script returned error exit status 10
  UpgradeStatus: No upgrade log present (probably fresh install)

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