After running the upgrade from 11.10 to 12.04, the upgrade manager crashed during the installation portion.
Now, when I run the update manager, it tells me:
Not all updates can be installed. Run a partial upgrade, to install as many updates as possible.
However, when I click "Partial Upgrade," I get this error:
Failed to run /usr/bin/update-manager '--dist-upgrade' as user root. Unable to copy the user's Xauthorization file.
How can I get my upgrade to finish?
I have tried several suggestions I've found on the internet, including
sudo dpkg --configure -a, but always get errors.