I am in the process of upgrading from Ubuntu 11.04 to 11.10 , but I've experienced the same error for the second time now after trying to upgrade for a second time.
I used the Update Manager program to first update all my packages. After this is complete I begin the Ubuntu upgrade process which stalls at the following point in the terminal:
installing new version of config file /etc/init.d/postgresql
The screen flickers continuously as if the update program is stuck in an infinite loop. I waited for over 30 minutes at this step to make sure but there was no progress.
Anyone know what my issue may be?