README.1ST
Installation Notes for the IBM IDE CD-ROM Drive (for OS/2 Only)


This README file contains information about installing the necessary
device drivers to support an IBM IDE CD-ROM drive in an IBM PC 300 or
PC 700 running an OS/2 environment.  It contains the following topics:

   Bus-Master DMA IDE Device Drivers
   Installation Procedures
   The CIDCD.EXE Program
   Installing CD-ROM Support in Windows 3.1
   Trademarks and Notices

Bus-Master DMA IDE Device Drivers
=================================

You must not have more than one hard disk device driver or more than
one CD-ROM device driver loaded.  To avoid this problem, use one of
the installation procedures described later in this README to install
the necessary device drivers.  You can view and edit the CONFIG.SYS
file to ensure that the correct device drivers are being activated.

The standard IDE hard disk device driver is IBM1S506.ADD; the
bus-master DMA IDE hard disk device driver is PIIXIDE.ADD.  The
following command in CONFIG.SYS activates the hard disk device driver:

   BASEDEV=drivername.ADD <optional switches>

The standard IDE CD-ROM device driver is IBMIDECD.FLT; the bus-master
DMA IDE CD-ROM device driver is PIIXIDE.FLT.  The following command in
CONFIG.SYS activates the CD-ROM device driver:

   BASEDEV=drivername.FLT <optional switches>

Note:  "REM" appearing in front of a line in CONFIG.SYS causes the
       operating system to ignore that line.

Make sure that no more than one hard disk device driver and no more 
than one CD-ROM device driver are activated by CONFIG.SYS.  Also make
sure that you are using both of the standard device drivers or both of
the bus-master DMA device drivers.  Do not attempt to use one standard
device driver and one bus-master DMA device driver.

Installation Procedures
=======================

Procedure 1:

If bus-master DMA device drivers are already installed in your
computer (or if you do not know whether they are installed), use the
configuration, installation, and distribution (CID) installation
method only.  This method automatically installs the necessary device
drivers, avoiding duplication of device drivers, and it installs the
necessary CD-ROM support in OS/2.                

Procedure 2:

If bus-master DMA device drivers are not already installed in your
computer you can install them through the OS/2 Selective Install.
However, you must install the necessary CD-ROM support (using
Selective Install or the CID installation method) before you install
the bus-master DMA device drivers.

The CIDCD.EXE Program
=====================

The installation program, CIDCD.EXE, can be used to install the
bus-master DMA device drivers through a CID installation or through a
stand-alone installation.  See the README.CID file for an explanation
of the CID installation method.  If your computer is not connected to
a network, run CIDCD.EXE, and the program will prompt you for the
required input.

Installing CD-ROM Support in Windows 3.1
========================================

To install CD-ROM support in a DOS with Windows environment, run the
UINSTALL.EXE program and follow the prompts for the required input.

Trademarks and Notices
======================

IBM and OS/2 are trademarks of the IBM Corporation.  Microsoft and
and Windows are trademarks or registered trademarks of Microsoft
Corporation.

Other company, product, and service names may be trademarks or service
marks of others.

Note to U.S. Government Users -- Documentation related to restricted
rights. -- Use, duplication or disclosure is subject to restrictions 
set forth in GSA ADP Schedule Contract with IBM Corp.