How to upgrade from Ubuntu 10.10 to 11.04? [duplicate]

I want to upgrade from ubuntu 10.10 to ubuntu 11.04.

The truly command line way is (e.g. if you don't have a gui):

sudo do-release-upgrade

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 official ubuntu.com page has information:

• For desktop and server editions.

You can easily upgrade over the network with the following procedure.

1. Open the Software Sources application from the System -> Administration menu

2. Select the sub menu Updates from the Software Sources application:

   

3. Change the Release Update drop down to "Normal Releases" and close the application

4. Open Update Manager from the System -> Administration menu
5. Click the Check button to check for new updates.
6. If there are any updates to install, use the Install Updates button to install them, and press Check again after that is complete.

7. A message will appear informing you of the availability of the new release.

   

8. 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:

• Can I skip over releases when upgrading?

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

Source

Follow these steps for an upgrade:

1. Just press Alt + F2
2. then you see a run small command windows
3. Then press"update-manager"in run windows
4. Now you see many windows just click them and you will upgrade