package grub-pc 2.02~beta2-9ubuntu1.12 failed to install/upgrade: subprocess installed post-installation script returned error exit status 128

[David Parker]

System update required reboot and this error occured

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: grub-pc 2.02~beta2-9ubuntu1.12
ProcVersionSignature: Ubuntu 4.4.0-34.53~14.04.1-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
Date: Sat Aug 6 08:28:10 2016
DuplicateSignature: package:grub-pc:2.02~beta2-9ubuntu1.12:subprocess installed post-installation script returned error exit status 128
ErrorMessage: subprocess installed post-installation script returned error exit status 128
InstallationDate: Installed on 2016-05-16 (85 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-34-generic root=UUID=5e8ac16e-5fa7-4dd9-b7f3-2d4e9c5ff949 ro splash quiet
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.7
 apt 1.0.1ubuntu2.14
SourcePackage: grub2
Title: package grub-pc 2.02~beta2-9ubuntu1.12 failed to install/upgrade: subprocess installed post-installation script returned error exit status 128
UpgradeStatus: No upgrade log present (probably fresh install)