Linux bootable USB key HOWTO
QUOTE
Linux bootable USB key HOWTO
OpenFacts, the Open Source Knowledge Database
Linux bootable USB key HOWTO
OpenFacts, the Open Source Knowledge Database
This document explains how to boot Linux from a USB key (without installation in the hard disk ).
What is a bootable USB Key?
Nowadays, there are more and more USB keys ( also know as keydrives or USB flash memory drives), that Plug & Play (driverless) via the standard USB 2.0 interface. These drives have up to 2 GB storage capacity. USB flash drives weigh about the same as a car key in fact, some USB flash drives are so lightweight that hypothetically it would take only 14 ants to carry one!
USB flash drives are about the size of a pack of gum. If you share a computer, USB flash drives are a great way to store personal information ¨C use them instead of the computer's hard drive. According to some manufacturer's specifications, USB flash drives can maintain data for 10 years ¨C in that same period you'll probably have to replace your computer's hard drive three times.
Generally, newer BIOSes allow USB flash drives to be bootable devicies. So it can be used diagnose system problems without going into the operating system. USB keys can also be used to kickstart a system which is then booted the rest of the way from the hard disk; this is often the case with computers using encrypted filesystems, with the flash drive storing the decryption key.
Also see here as well.
Boot from USB stick
These may help as well.