---------------------------- 90xMDI.TXT -------------------------------


                      Installation Instructions
          SCO UNIX MDI Driver for the 3Com 3C90X Adapter Family


Below are instructions for creating an SCO "custom" installation diskette
containing the MDI device driver for 3Com's 3C90X network adapter family.
MDI drivers are used with SCO's Open Server 5.0 Operating System.  Once the
diskette is created, follow the SCO instructions for using the "custom" and
"netconfig" utilities to install the driver.

To begin, place the 3C90XMDI.A file on a DOS formatted diskette.  3c90xmdi.a is
an ASCII encoded, compressed, SCO UNIX diskette image file.  Place the
diskette in drive A on a computer with SCO UNIX installed.  If you wish to
use drive B, adjust the instructions below appropriately.

Now enter the following commands at the UNIX prompt.  Remember, UNIX is
case sensitive.

   doscp a:3c90xmdi.a 3c90xmdi.a  (copies from DOS disk to current working
                               directory)
   uudecode 3c90xmdi.a          (decodes the ASCII file to binary VOL.000.000)

Now place the 3.5" diskette you want to become the installation diskette
in drive A.  This should be a UNIX formatted, high density diskette.
Enter the following command.  Again, if you wish to use drive B, adjust the
instructions below appropriately.

   dd if=VOL.000.000 of=/dev/rfd0135ds18 (transfers disk image to diskette)

The diskette is now ready to use with the SCO "custom" utility.