Comment 3 for bug 872987

I had the same error(Bug #873722 ) when upgrading from 11.04 to 11.10. After this error the upgrade was terminated and the upgrade program notified me that my upgraded system might be unstable. I did a restart and so far everything works fine.
I even managed to finish installing Samba. When I opened the Update manager there was only one packet to install and that was
Samba. I tried to install it but Update manager said it was corrupted or something(not really sure). But the Update manager also recommended running "apt-get install -f" in terminal. This command successfully installed Samba.

But my question is-how can I finish the upgrade procedure? It was close to the finish when it aborted but at least
the "Cleaning up" process didn't run. Is there any way to see if everything is as it should be?

Thank you everybody!