update-manager crashed with CacheExceptionDpkgInterrupted in __init__()

[Poloh]

Binary package hint: update-manager

This is after one error for the following update.

After this error, sudo dpkg --configure -a is unsuccessfull too...

The details are below :
poloh@poloh-lucid:~$ sudo dpkg --configure -a
[sudo] password for poloh:
Paramétrage de initramfs-tools (0.92bubuntu64) ...
update-initramfs: deferring update (trigger activated)

Traitement des actions différées (« triggers ») pour « initramfs-tools »...
update-initramfs: Generating /boot/initrd.img-2.6.32-12-generic
cpio: ./lib/udev/firmware.sh: échec de la fonction : stat: Aucun fichier ou dossier de ce type
update-initramfs: failed for /boot/initrd.img-2.6.32-12-generic
dpkg: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
poloh@poloh-lucid:~$

ProblemType: Crash
Architecture: amd64
Date: Wed Feb 10 19:38:53 2010
DistroRelease: Ubuntu 10.04
ExecutablePath: /usr/bin/update-manager
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100113)
InterpreterPath: /usr/bin/python2.6
Package: update-manager 1:0.131.4
PackageArchitecture: all
ProcAttrCurrent: unconfined (enforce)
ProcCmdline: /usr/bin/python2.6 /usr/bin/update-manager --dist-upgrade
ProcEnviron:
 PATH=(custom, no user)
 LANG=fr_FR.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-12.17-generic
PythonArgs: ['/usr/bin/update-manager', '--dist-upgrade']
SourcePackage: update-manager
Title: update-manager crashed with CacheExceptionDpkgInterrupted in __init__()
Uname: Linux 2.6.32-12-generic x86_64
UserGroups:

[Poloh (el-poloh)]

after the followings commands, it seems to work again

sudo rm /var/lib/dpkg/updates/*

but there is definitively a bug in the package initramfs-tools (0.92bubuntu64)

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #519882, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.