Comment 4 for bug 231075

Thank you for reporting this issue... The issue you reported does need to be addressed because it shouldn't have crashed when upgrading but I think I have a solution to your problem. Try apt-get -f install and report back if it fixed it or not...

So if I understand you correctly you had an up to date dapper system and you did an upgrade via upgrade manager? I might have to test this to see if I can recreate the problem...