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Updating Ubuntu has gotten simpler over time. The graphical utility makes it easy to upgrade to the next version. This HowTo should work for any beta in the future, but keep in mind that beta software installation should only be done by those who are sure they know what they are doing.
If you’re ready to take the plunge, run this command from a terminal or launch box:
gksu “update-administrator -c -d”
The switches tell the regular update manager to check for beta updates. This is necessary even when Edgy is out of beta, in order to upgrade from one version to the next.
You will be presented with a screen similar to this: (you may need to press the Verify button first)
Go ahead and click the Update button. The release notes window will appear and you will click the Update button again.
You will see the progress dialog:
The update process will exit and determine all required packages, and then ask you again to click Start update (makes you want there to be a flag that says “Really update me silently”)
On my machine, I got this message and clicked the Delete button, but you can skip the step if you’re concerned.
And that’s all there is to it. You will be prompted to restart your computer, at which point you will see that Edgy Eft is running and you will notice that your Firefox has been updated to the beta version of Firefox 2.
However, if you are determined to install from the command line,
other HowTo about installing using apt-get.