Hey guys i just found about this site called pendrive linux. Here is version of Mandriva which you can boot from your pendrive. This looks like the portable apps project of Windows where you can carry your favourite application in a pendrive without having to install on the computer. Hopefully they will develop such applications in linux. But this project about linux is for carrying the whole OS in a pendrive. There is also options to boot from CD first and load the os from the usb drive if you motherboard supports only booting from CD-ROM.
Visit the Pendrive Linux Project Here.
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