package grub-pc 2.02~beta2-9ubuntu1.3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[booyah]

After upgrading from 12.04 LTS to 14.04 LTS grub failed to upgrade properly leaving me with a disabled system. This was noted to me at the end of the installation process. I had my trusty LiveUSB and used Boot-Repair to properly reinstall GRUB2 and I was back in action. On other systems that I've upgraded that run RAID1, I have repeated run into this problem.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: grub-pc 2.02~beta2-9ubuntu1.3
ProcVersionSignature: Ubuntu 3.13.0-57.95-generic 3.13.11-ckt21
Uname: Linux 3.13.0-57-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
Date: Sun Jul 19 11:43:30 2015
DuplicateSignature: package:grub-pc:2.02~beta2-9ubuntu1.3:subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2013-06-04 (774 days ago)
InstallationMedia: Ubuntu-Server 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130214)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-57-generic root=UUID=fdfd506d-1319-477d-914e-b2ba93db77bd ro quiet splash
SourcePackage: grub2
Title: package grub-pc 2.02~beta2-9ubuntu1.3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to trusty on 2015-07-19 (0 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

[Expired for grub2 (Ubuntu) because there has been no activity for 60 days.]