package grub-pc 2.02~beta2-9ubuntu1.7 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[SVI]

Grub fails to install to /dev/sda when running do-release-upgrade in sandbox mode.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: grub-pc 2.02~beta2-9ubuntu1.7
ProcVersionSignature: Ubuntu 3.13.0-74.118~precise1-generic 3.13.11-ckt30
Uname: Linux 3.13.0-74-generic x86_64
NonfreeKernelModules: aufs qnx4 hfsplus hfs minix ntfs jfs reiserfs x86_pkg_temp_thermal intel_powerclamp ast ttm drm_kms_helper drm ipmi_si mei_me mac_hid mei lpc_ich coretemp shpchp hid_generic usbhid igb dca i2c_algo_bit
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
Date: Mon Mar 21 08:53:11 2016
DuplicateSignature: package:grub-pc:2.02~beta2-9ubuntu1.7:subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2014-02-03 (776 days ago)
InstallationMedia: Ubuntu-Server 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.2)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-74-generic root=UUID=aa744f57-bb4b-4c8c-b0e2-6eb155338f0a ro
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.5
 apt 1.0.1ubuntu2.11
SourcePackage: grub2
Title: package grub-pc 2.02~beta2-9ubuntu1.7 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to trusty on 2016-03-21 (0 days ago)

[Mate Kukri (mkukri)]

Ubuntu "Precise Pangolin" is no longer supported, and Ubuntu "Trusty Tahr" only receives ESM fixes for security problems.