You’ve more than likely heard of Ubuntu coming to the Nexus 7, and now their is a public Developer Preview of the tool which is really easy for you to use. It is warned though that many
things just don’t work as they should, but rest assured progress is being made to make Ubuntu run properly as if the tablet came with it (only the fact it’s rooted).
At the moment you need to be prepared to (or have) root your Nexus 7 and to loose all of your data (it would not work with Ubuntu anyway!).
If you know your way around Ubuntu (and know how to install PPAs) you can head straight to the guide on the Ubuntu Wiki and get going!
If not, here’s a guide for those who may not have much of a clue. First of all you need a desktop installation of Ubuntu for this to work, but you can make Live USB devices to help you along with this. Once you’ve got Ubuntu all ready, you’ll need to launch the Terminal from the launcher and copy in:
sudo add-apt-repository ppa:ubuntu-nexus7/ubuntu-nexus7-installer
And when you hit enter you will need to type your password in (don’t worry, this is normal) and it will then ask if you want to install the PPA and you press enter to accept and install it.
Now, you copy in:
sudo apt-get update; sudo apt-get install ubuntu-nexus7-installer
And the installer is ready to go!
Before you start, you need to do is to root your Nexus 7, which you can follow that part of the guide here if you haven’t already.
Now, all that’s left is to run the installer
And you should now have Ubuntu on your Nexus 7 once that finishes. (On the Ubuntu Wiki there is a guide to get back to Android if you don’t like it)
via OMG Ubuntu