package linux-image-3.2.0-18-generic-pae upgrade fails

[Andy Stevens]

Not sure if this is really a problem with update-manager itself, the linux-image-3.2.0-18-generic-pae package, or usb-creator (looks suspiciously like Bug #932663).

I downloaded the 12.04 beta ISO image and created a bootable USB stick with usb-creator. After booting from that, I installed a few extra packages (ubuntu-restricted, rtmpdump, get-iplayer, mplayer) then ran the update manager. The first window said it could only do a partial update for some reason; I continued anyway. After downloading a lot of packages and installing a great many of them, I was eventually presented with the error message:

Could not install 'linux-image-3.2.0-18-generic-pae'
The upgrade will continue but the 'linux-image-3.2.0-18-generic-pae' package may not be in a working state. Please consider submitting a bug report about it.
subprocess installed post-installation script returned error exit status 2

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.7
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic-pae 3.2.6
Uname: Linux 3.2.0-17-generic-pae i686
ApportVersion: 1.94.1-0ubuntu2
Architecture: i386
CasperVersion: 1.307
Date: Wed Mar 14 09:50:38 2012
ExecutablePath: /usr/bin/update-manager
GsettingsChanges:

InterpreterPath: /usr/bin/python2.7
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
 TERM=unknown
SourcePackage: update-manager
UpgradeStatus: Upgraded to precise on 2012-03-14 (0 days ago)