I do not have a Fedora system. I've been using 'livecd-iso-to-disk' script for building USB sticks from .iso files. But that never has worked for me with XO-1.5 builds. And just now it failed with a recent XO-1 build. [Booting stalls - can't mount root filesystem.] A while ago I read a complicated procedure to build an USB stick from a tree.tar.lzma file -- now I can't find that description. Please - how do I build a bootable USB stick, for example from the os40_build files ? [Preferably using just an XO-1 for this.] Thanks, mikus