Hey sorry for a noob question but i was wondering can instead of having multiple usbs for backtrack, ophcrack , and portable OS s is it possible to them into one big usb.

Ive read about Lilo and grub but ive only understood the partions then i dont know what to do next coould someone explain how i could do this because have like 5 usb sticks must be quite annoying. I would thank you guys if you could explain or post a link for a tutorial.