Quote Originally Posted by pbs
.ISO BOOT?:

Setting up the USB to boot from a .ISO stored on itself is less easy to do. It requires access to a number of programs in a non-ISO-encapsulated /knoppix/knoppix file system to accomplish the root transfer, and there's not enough room for both. I suppose one could add the necessary programs (and dependencies?) to minirt.gz, but it would likely take much more effort. Cool, but is it really worth it?
You might want to look at this which outlines one approach to getting iso booting working. The linuxrc patch could be much simpler if you wanted (I had pretty much written a patch to linuxrc so the section to scan the $DEVICES uses an if/esle to make it check if a "fromiso" cheatcode was present and if so to hunt the drives for KNOPPIX.ISO instead of KNOPPIX/KNOPPIX and if it finds one to loop mount it as /cdrom and then check it for KNOPPIX/KNOPPIX and break if it has it.