RC3 as Boot CD with USB flash drive and persistent changes 

http://www.slax.org/forum/viewtopic.php?p=79777#79777

This is all working for me on a newer PC, with 640MB RAM and an old nVidia TNT2 card:

One quirk I learned to avoid: since Linux treats a USB flash drive as a SCSI hard drive, you can't use the nohd cheatcode to avoid mounting real hard drive partitions. UPDATE: The noauto cheatcode solves this issue.

documented on: Sun May 06, 2007, jayseye