Microsoft KB Archive/98244

= Installing OS/2 1.3x on a Unisys PW2-3256 Computer =

Article ID: 98244

Article Last Modified on 10/31/2006



This article was previously published under Q98244



SYMPTOMS
Computers that provide an Adaptec SCSI BIOS by means of the Western Digital 6260 VLSI chip on the motherboard hang on the copyright screen of OS/2 1.3x. This includes the Unisys PW2-3256.



CAUSE
On some Unisys machines with the WD6260 SCSI BIOS, the ROM signature says Western Digital, not Adaptec, which confuses OS/2. Western Digital licenses the Adaptec BIOS for their 6260 chip, which they sell to Unisys and other OEMs. OS/2 thinks that a Western Digital signature means to use a WD1003 compatible driver, which is the root problem.



RESOLUTION
To install OS/2 1.3x on a Unisys PW2-3256, back up Installation disks A and B, renaming WD*.BID to WD*.BAK on the backups. Now you should be able to boot from Disk A, and successfully continue installing LAN Manager 2.1, 2.1a, or 2.2. With the Western Digital drivers no longer listed, OS/2 selects the correct Adaptec drivers.

Additional query words: 2.20 2.2 hang install os2131 os2130

Keywords: KB98244

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