Hey, i dont know if i understand the question, but if you want to make a linux booteable into a flash usb drive, its online a little distro of knoppix, what's size can copy to a flash, try to find't because i forgot the name, i keep searching, oh i forgot, your motherboard needs to have a setting calling "Boot from usb", if you dont have this i hard way to make boot the distro, seeya.