i dont know what you are using, but i assume usb so try this...
Is it possible for Backtrack 3 to save my data? Everytime I boot it up, it reverts back to default settings. And for some reason, I can't make this topic in the Backtrack 3 forum, it doesn't let me.
This should get you going.
when you get it maybe you could post your results at the end of that thread so that it may help others.