OSDIFD2A - DRIVE NOT RECOGNIZED IN FDISK WHEN BOTH IDE AND SCSI 
CONTROLLERS OR DRIVES ARE IN SYSTEM
09/26/96
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Drive Not Recognized in FDISK when Both IDE and SCSI Controllers or 
Drives Are in System
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Please Read Entire Document for Full Explanation of Procedures
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DESCRIPTION

During a network installation, installing to a system with both IDE and 
SCSI controllers, no drive statistics or partition information is shown 
during FDISK. It appears as though the system doesn't recognize 
that any drives are installed.  Further, if you escape out of install, 
using F3 for a command prompt (when available), and try to do 
a DIR on the drives, a message states that
the drive cannot be found.

This problem has been seen on systems with both an Adaptec 1522a SCSI 
controller with hard disk attached (or any SCSI controller) and any IDE 
controller with hard disk attached. 


RESOLUTION


Restart the system with the SCSI adapter but do not load the SCSI 
driver.  

Using only IBMINT13.I13, the system starts up successfully and FDISK 
works properly for both drives; all geometry information is displayed.  

To do this, follow these steps:

1. Insert the OS/2 Warp 4 Installation Diskette in drive A: and restart 
   the system.
   Insert Diskettes #1 and #2 when prompted.  At the Welcome screen, 
   press F3 for a command prompt. 

2. Make a copy of the OS/2 Warp 4 Diskette #1.  With the disk in the 
   drive, type:
   
   DISKCOPY A: A: 

3. On the newly created diskette, edit the CONFIG.SYS:

   Type TEDIT CONFIG.SYS, then press Enter.

4. Press Esc, then look for the DEVICE= or BASEDEV= statements 
   containing the SCSI driver for your controller (AHA152*, for example).
   Place a REM in front of those lines.

5. Be sure the BASEDEV=IBMINT13.I13 line is present in the file.

6. Save and exit the CONFIG.SYS file, by pressing F4.

7. Restart the system with the diskettes, using the modified 
   Diskette #1 when prompted for Diskette #1.

FDISK should now report the correct information.




warp4
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