USB sticks are really useful. Not only for transferring files between computers, but also also rescue media, or more generally, to boot from. However, making a USB stick bootable can turn out to be tricky. This small howto describes the tricks that I discovered over the last years. The following commands assume the necessary package to be installed under Linux. It has been tested with Debian GNU/Linux sid (unstable as of 2006-06-26) with packages mbr (1.