Yeah, it is 5 in Mandy. And for anyone else considering doing this, please note that you will need to type startx in order to get to a GUI. It is exaclty as I typed it - all lowercase, no spaces.
Also, if you're feeling in a brute force kind of mood - if you boot to a text login, you can load the GUI login later. As root, type init 5 and it'll bring it up.