Can I go back to the previous Ubuntu version after installing 11.04 alpha2?

After installing 11.04 alpha2, I cannot access the internet.

I use wireless LAN. In the network connection dialog, it seems to work well, but I cannot access any webpages from my webbrowser even if I use direct ip address (so it is not a DNS problem).

I cannot download a newer version from update-manager. That doesn't work either.

Can I roll back the update? I'm so frustrated and regretful.

Solution 1:

Unlike Windows Ubuntu doesn't create system restore points to 'rollback' to.

You would have to reinstall 10.10 from scratch but you can back up your data in your /home directory and start over.

Natty is only an Alpha release and not recommended for a production install - you'd be better off to install it onto a USB stick and run a live version to test and report bugs.