This question already has an answer here:
I want to upgrade from ubuntu 10.10 to ubuntu 11.04.
This question already has an answer here:
I want to upgrade from ubuntu 10.10 to ubuntu 11.04.
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
Press Alt+F2
and type update-manager
, this should show the option to upgrade to 11.04.
Through the terminal this can be done using the same command but I am guessing you need use sudo to do this.
The truly command line way is (e.g. if you don't have a gui):
sudo do-release-upgrade
The official ubuntu.com page has information:
You can easily upgrade over the network with the following procedure.
Select the sub menu Updates from the Software Sources application:
Change the Release Update drop down to "Normal Releases" and close the application
A message will appear informing you of the availability of the new release.
Click Upgrade.
Follow the on-screen instructions.
Taken from: https://help.ubuntu.com/community/NattyUpgrades
If you're moving from 10.04, see this question:
From 11.04 onwards,when you boot the livecd and start installing it will give a option of upgrading to 11.04. it will automatically detect installed apps and install the updated version of your apps also. assuming your not dual booting
Follow these steps for an upgrade: