From: Duncan Frissell <frissell@panix.com>
Date: Tue, 1 Dec 1998 23:45:02 +0800
To: Bill Stewart <cypherpunks@EINSTEIN.ssz.com>
Subject: Re: Securing data in memory (was "Locking physical memory (fwd)
In-Reply-To: <366086B6.2E880D74@brd.ie>
Message-ID: <199812011458.JAA13450@mail1.panix.com>
MIME-Version: 1.0
Content-Type: text/plain



At 09:22 PM 11/29/98 -0500, Bill Stewart wrote:
>Yeah - it can be quite nice to do that, both for security and speed.
>Hugh Daniel's done some work on making Unix run on systems with 
>read-only root drives - there are some SCSI drives which support
>read-only mode again, and there are PCMCIA flash cards which have
>write-protect switches and look like disks to the OS, 
>so you can set them up the way you want and then go to read-only.

Unix has been ported to memory only systems including the Palm OS (using
virtual drives) but you can't do much with it at this point.

http://ryeham.ee.ryerson.ca/uClinux/

"The Linux/Microcontroller project is a port of the Linux 2.0 to systems
without a Memory Management Unit. At present, only Motorola MC68000
derivatives are supported. The first target system to sucessfully boot is
the 3Com PalmPilot with a TRG SuperPilot Board and a custom boot loader
they put together specifically for the Linux/PalmPilot port. Thanks guys!"

DCF