package update-manager 1:0.93.32 failed to install/upgrade: ErrorMessage: SystemError in cache.commit(): E:Sub-process /usr/bin/dpkg returned an error code (1)

[Pyoverdine]

I was on Ubunti 8.04, and I was installing 8.10
At the end (after about one hour), the process give me two errors and he tel me that he will uninstall all...
The installation was by "gksu 'update-manager -c -d'" in a terminal window.

If you want further information, mail me...
When I reboot I have a kernel Panic

Laurent

ProblemType: Package
Architecture: i386
DistroRelease: Ubuntu 8.10
ErrorMessage: ErrorMessage: SystemError in cache.commit(): E:Sub-process /usr/bin/dpkg returned an error code (1)

NonfreeKernelModules: nvidia
Package: update-manager 1:0.93.32
PackageArchitecture: all
SourcePackage: update-manager
Title: package update-manager 1:0.93.32 failed to install/upgrade: ErrorMessage: SystemError in cache.commit(): E:Sub-process /usr/bin/dpkg returned an error code (1)
Uname: Linux 2.6.24-21-generic i686