Possible Duplicate:
Why is “No new release found” when upgrading 10.04 to 12.04 LTS?
Ubuntu 12.04.1 was released yesterday and I still can't update from 10.04
Possible Duplicate:
Why is “No new release found” when upgrading 10.04 to 12.04 LTS?
Ubuntu 12.04.1 was released yesterday and I still can't update from 10.04