package grub-pc 1.99-21ubuntu3 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1

[Erick Brunzell]

I encountered four errors while upgrading from Oneiric to Precise, and upon reboot apport auto-launched reporting all four. This is one of them. I have a screenshot to attach and a bit more info so be patient.

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: grub-pc 1.99-21ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic i686
ApportVersion: 2.0.1-0ubuntu5
Architecture: i386
Date: Sun Apr 22 03:50:12 2012
ErrorMessage: ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=1966e720-b7df-41ee-a3d5-15d68cc7784e ro quiet splash
SourcePackage: grub2
Title: package grub-pc 1.99-21ubuntu3 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to precise on 2012-04-22 (0 days ago)

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/986791

[Erick Brunzell (lbsolost)]

Please also see bug 986792, bug 986797, and bug 986798. These are all related to the same Oneiric -> Precise upgrade.

[Erick Brunzell (lbsolost)]

Here's a screenshot of the actual error encountered during the upgrade.

[Erick Brunzell (lbsolost)]

Whoever gets assigned to this needs to look at comment #3. I'd very much think they're all related. After the first boot into this upgraded Precise and filing these bug reports (which were generated by apport) I now see no problem!

I'm booting the proper kernel, not sure about mem-test or the rest, but the OS seems to be functioning OK.