IBM OS/2 2.x IDE CD driver BETA for NEC 260 IDE CDROM drive
        September 17,1994


        This package conatins the beta driver for the NEC 260 IDE CDROM drive


        You MUST use these NEW files to replace the existing copies supplied
        by whatever version of OS/2 you are using.



Installation if OS/2 2.1 or the WARP beta is already installed on your fixed disk
----------------------------------------------------------------


1. you must run Selective Install to install the files for the OS/2 CD-ROM Device
   Manager and OS/2 CD-ROM File System.

   a. Open the OS/2 System folder on the desktop.
   b. Open the System Setup folder.
   c. Open Selective Install
   d. Select the CD-ROM Device Support check box
   e. Select OK
   f. Scroll to the bottom of the CD-ROM device list table and
      select the choice OTHER (OS/2 2.1) or Non-listed IDE CD-ROM (WARP II)
   g. Select OK
   h. Select the OK push button to proceed from the System Configuration
      screen to the OS/2 Setup and Installation window
   i. Select Install
   j. When prompted to do so, insert the numbered installation diskettes
      or installation CD-ROM from the OS/2 2.1 product.


2. Copy the files provided in this packe OVER thos installed in step 1,
   to their proper location on your system. On the Warp betas this is 
   probably \OS2\BOOT
   check by doing a DIR IBM1S506.ADD /S on your system  <== DIR command
 
3. NEC completed this drive before the ATAPI CDROM spec was final,
   and this drive does not support one required command. To bypass this problem,
   parameters MUST be supplied to the IBM1S506.ADD line to identify
   where the NEC 260 drive is connected.


   /A:

      Which IDE drive connector on your adapter contains the cable
      that the NEC 260 IDE drive is connected to

      IF you have only one IDE controller, this is Adapter 0, /A:0

      IF you have TWO IDE controllers, and the NEC 260 is connected to
      the second controller cable, this is Adapter 1, /A:1

      The Enhanced IDE specifications allow for FOUR adapters, so
      /A: COULD be 2 or 3 in your system.


   /U:

      Each IDE controller can drive up to TWO drives. If the CD drive
      is jumpered as the Master then this is unit 0, /U:0 otherwise it 
      is unit 1, /U:1

   /atapi or /ATAPI

      This informs the IBM1S506.ADD driver that this unit (/a: /u:) is an
      ATAPI (IDE attached) CDROM drive...

   Edit your config.sys

   locate the BASEDEV=IBM1S506.ADD line

   If you have NO parameters on this line, then ADD the
   parms as defined above, /A:? and /U:?

   an example line with the CD as slave on controller 1
   BASEDEV=IBM1S506.add /A:0 /U:1 /ATAPI

   IF you ALREADY have parms, and have a /A:? parm already, make sure
   to add JUST the /U:? parm for that adapter.

   add a new line after the new IBM1S506.ADD line

   BASEDEV=IBMIDECD.FLT

4. Shut down and restart your system


Installation if the WARP beta is NOT already installed on your fixed disk
----------------------------------------------------------------


1. create the CD install disk 1 from the WARP II beta CD

2. copy the files supplied here OVER the ones on disk 1.

3. Edit the config.sys on disk 1 and add the BASEDEV=IBMIDECD.FLT line
   and modify the BASEDEV=IBM1S506.ADD line as described above
   (adding the /A & /U parms)

4. Boot the installation disk and disk 1 and proceed thru
   installation phase 1.

5. Because the installation pgm uses copies of these files
   from a packed file on the installation diskettes, the
   UPDATED drivers you copied in step 2 are overlayed with
   the older ones on your hard disk. You MUST manually
   fix this.

   when it askes you to reboot to continue the installation
   insert the installation disk and reboot, then thur disk 1
   to the easy/advanced install panel. Press F3 to get to a
   command line. Go to the installation drive (wherever you
   installed OS/2). copy the updated files (OS2CDROM.DMD,
   IBM1S506.ADD, and IBM1DECD.FLT from disk 1 to the
   proper location on the install partition)

6. insure that the parms on the IBM1S506.ADD line
   are in the config.sys on your hard disk

   from the root directory, type TEDIT config.sys
   page up/down will scroll you thru the file.
   If you nade changes to the config.sys press F4
   to save and exit the editor, else F3 to exit

7. type EXIT fromthe command line

7. remove the diskette from A: and reboot

8. Complete the rest of install