Problems with soas

[S Page]

I've never known a USB flash drive not to come partitioned, otherwise
how would malware writers propagate their code? ;-) . Perhaps your USB
flash drive had the evil U3 screw-up software installed?  See
http://wiki.laptop.org/go/USB_drive#USB_drives_and_firmware which has
a link to remove it.

You don't say what kind of machine you're booting.  That same section
says "For the flash drive to be compatible with [XO-1] firmware, make
sure that your USB flash drive is formatted as FAT or FAT32, "
Partitions bigger than 2 GB can't use FAT16, so they usually come
formatted as FAT32.