How to upgrade ubuntu

[nileshlog]

I have the previous version 9.04 of ubuntu. can anyone guide me to a thread informing about the steps to follow. I searched the forum but couldn't find any thread.

[mlentink]

Have you tried this:
http://www.ubuntu.com/getubuntu/upgrading


But first: back up your data

[nileshlog]

Oops!! Sorry...Human being forgets to try and find the most obvious...thanks