It depends how new it is. If the kernal is too new then the linux file won't run. Well this is for soft modding, I don't know much about hard modding.
Go into your Xbox dashboard and there should be something in there that says System Info and it should tell you in there.
I have a Halo edition and i soft modded mine just fine. No worries bro. it can be done. My xbox is fairly new. got it christmas of 2004