    AST RESEARCH, INC.        TECHNICAL BULLETIN # 1672          03/04/97

    TITLE:  Installing SCO on an Ascentia A

    ISSUE

       Some users may encounter difficulties installing SCO Open Server
       5 on an Ascentia A system, when selecting the Media device. SCO
       will expect to see the IDE CD-ROM drive as a slave on the primary
       controller and will not find the CD-ROM.

       This issue affects all Ascentia A systems.

    BACKGROUND

       SCO Open Server 5 uses an ATAPI driver to provide support for IDE
       CD-ROM devices. This support is given by replacing the Western
       Digital driver shipped with SCO.

       The user can avoid installation problems by defining the
       parameters for this driver.

    ACTION

       Use the following command at the boot prompt:

         defbootstr ahslink=ATAPI Sdsk=wd(1,0,0,0) disable=dptr

       This command will allow SCO to pick up the CD-ROM and use it as
       the install media for SCO.

    NOTES

       N/A

    TAN EPR 1944CH

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