Ubuntu: How to upgrade from 10.04 to 10.10

Ubuntu 10.10 is out today. Here is the tutorials for how to upgrade from 10.04 to 10.10.

1.Open the release-upgrade from terminal

sudo gedit /etc/update-manager/release-upgrade and set prompt=normal


2.Go to System->Administration->update manager->check



Then press the upgrade button.The upgrade process will begun