In the MSDOS world, you only would need to format a disk, run th command : sys [drive letter] and voila you have a core ms-dos boot disk from which you could build and customize with autoexec.bat and config.sys etc... My question is: I have been searching for some weeks now with no definitive answer for...how do you build a basic linux install in the same way? now I know you would have to create a linux and swap partition, but from there is it just a matter of copying over vmlinuz and initrd.img (I doubt highly). What are other BASIC files that MUSt be installed to get a successful boot? Side note: I am presuming that one may need to recompile the kernel to remove all but the bare minimum configuration? Any help would be great. thanks in advance.