Nec260

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Configuring the NEC 260 IDE cdrom under OS2 Warp

Last updated: 27 Dec 1994

DESCRIPTION OF SYMPTOMS

A NEC 260 IDE cdrom is not being recognized by OS2 Warp.

SUMMARY OF RESOLUTION

Make sure the proper drivers are loading in config.sys and that the necessary files are located in the proper directories.

DETAILS OF RESOLUTION

If you have already installed OS2 Warp, and are trying to get the cdrom recognized, follow these instructions:

1. Go to the OS2 Selective Install utility. From the list of cdrom's, select the NEC 260. Click OK. At the System Configuration window, click OK again. At the Setup and Installation window, select the Install button.

2. Insert the OS2 diskette when prompted.

3. Edit the OS2 config.sys in the root directory of the hard drive. Find the line:

BASEDEV=IBM1S506.ADD

Add switches to this line so that it reads:

BASEDEV=IBM1S506.ADD /A:x /U:y /ATAPI

The /A switch refers to the adapter number that the cdrom is attached to. The /U option references the unit or device number on a particular adapter. The /ATAPI parameter enables ATA Packet Interface protocol for the NEC 260. If the cdrom is attached to the second IDE port or adapter in a system and is the only device on the adapter, you would enter

BASEDEV=IBM1S506.ADD /A:1 /U:0 /ATAPI

in the config.sys. If the cdrom is configured as a slave, or sec device, you would specify /U:1. The config.sys should also contain the statements:

BASEDEV=IBMIDECD.FLT
DEVICE=C:\OS2\BOOT\OS2CDROM.DMD
IFS=C:\OS2\BOOT\CDFS.IFS

These should have been added by the Selective Install program.

If you are trying to install Warp from the NEC 260 cdrom, simply configure the

BASEDEV=IBM1S506.ADD

line per above. If you find that OS2 still does not recognize the cdrom, make sure that the /A and /U parameters are specified

Source

ftp://software.watson.ibm.com/pub/os2/info/nec260.txt