New hardware drives with replaceable media in the 100+ Mb range has developed. The Syquest 135 Mb drive, featured in the latest issue of _PC Mag_ can, with the parallel port version, reportedly boot.
This means one can have the drive that weighs about two pounds and a $20 disk, place another OS on the disk, and have a very portable remailer system.
Have made some small study of that area and would be somewhat surprised if possible as advertised (BIOS would need some reason to look for disk on parallel port). What *might* be possible is to create a floppy that would install a device driver that would install directly on top of the BIOS intercepts that would transfer the boot to the Syquest but this would only work for an OS that did not replace the BIOS access with "something else" unless you had a driver for *that*. If you *really* wanted to go overboard, it would also be possible to create a PROM that could be plugged into the "bootp" socket of a NIC and do the same thing but the floppy route would be lots easier. A prom is how Iomega used to be able to make Bernoullis the boot disk - went into a socket on the PC2B (and earlier combo) card. Incidently more than one "hard disk encryption system" using this method has been broken once I have grabbed the intercept out of a booted system. Is also effective for recovering from CPTs. Warmly, Padgett