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- Instructions for installing non-Toshiba CD-ROM Drives under 0S/2 2.0
- ********************************************************************
-
- 1) Check the \OS2 directory for the files CDROM.SYS and CDFS.IFS.
- If they are not present, run Selective Install and select ALL CD-ROM
- options.
-
- 2) Make a backup copy of the file CDROM.SYS
-
- 3) Edit the file CDROM.SYS with DEBUG, either from MS-DOS or a DOS Session
- under 0S/2. Make sure to setup the version of MS-DOS reported to DEBUG
- if you are running a DOS session under 0S/2 2.0.
-
- 4) Change to the \0S2 directory of your boot drive.
-
- 5) Type DEBUG CDROM.SYS
-
- 6) Type D 56A. You should see the string Toshiba starting at this location.
- If it is NOT there then type D 0 and repeatedly enter D to find the offset.
-
- 7) You must now change the "Toshiba" to match the manufacturers identification
- string. For example if you have an NEC drive you must enter NEC and pad the
- rest of the 8 characters with blanks (20H).
-
- The editing is done as follows:
-
- NEC CD-ROM --- E 56A 4E 45 43 20 20 20 20 20
- SONY CD-ROM --- E 56A 53 4F 4E 59 20 20 20 20
-
- 8) Type D 56A and verify that the string matches the one for your
- manufacturer. It must be 8 characters long (including blanks) and then
- be followed by (00H).
-
- 9) If it is correct type W and the file will be saved in CDROMSYS
-
- 10) Make sure the following lines are in your CONFIG.SYS
-
- BASEDEV= OS2SCSI.DMD
- DEVICE=C:\OS2\CDROM.SYS /N:4
- IFS=C:\OS2\CDFS.IFS
-
- 11) Reboot your machine and 0S/2 should now be able to access your CD-ROM.
- Open the "Drives" folder and verify that a new icon is there. You should
- be able to read all data from the disk but AUDIO commands will NOT work.
- IBM is working on upgrading CD-ROM support but in the meantime
- non-Toshiba drives are limited to non-audio commands.
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