Hey I have looked around but didn't get the answer I was looking for. I just got a new 15" Macbook Pro and was wondering if it is possible to install Ubuntu as the only operating system. That means no Mac OS X. As to whether or not I will do this in the end, I don't know, but I want to know if it is possible.

Is it also possible to boot Ubuntu as default and not OS X if you have a dual boot?

Also, I saw rEFI, but how do I make that work? I want to be able to see BIOS like settings, this is what it does right?

Sorry if there is any typos or something I am at work and typing fast. Thanks.