update-manager locks up during dist-upgrade

[Christopher Robert Evans]

update manager lockup on the ubuntu 12.04 computer the other day
when i rebooted unity dash wasnt not working and i ended up reformatting
ext4 partition and reinstalling everything from 12.10 install dvd.

i recommend that the undate manager install a recovery app in the startup list
and allow computer to finish and repair a botched upgrade.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: update-manager 1:0.174.3
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic i686
ApportVersion: 2.6.1-0ubuntu3
Architecture: i386
Date: Fri Oct 19 14:25:48 2012
GsettingsChanges:
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'launch-time' b'1350582420'
 b'com.ubuntu.update-manager' b'window-height' b'518'
 b'com.ubuntu.update-manager' b'window-width' b'600'
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: Upgraded to quantal on 2012-10-18 (1 days ago)