Category Archives: BusLogic

Learn Something Old Every Day, Part IX: AHA-154xB and ASPI4DOS.SYS

The other day I had a pressing “need” to examine the behavior of Adaptec 154x and compatible SCSI HBAs and their DOS drivers. I found the hard way that the AHA-154xB does not work with Adaptec’s last DOS drivers from … Continue reading

Posted in Adaptec, Bugs, BusLogic, SCSI | 6 Comments

OS/2 1.3 on a “Large” Disk

In response to a reader question, I started wondering how difficult it actually is to install OS/2 1.3 on a “big” hard disk, where “big” is defined as more than about 500 MB. In an attempt to reduce the number … Continue reading

Posted in BusLogic, OS/2, PC history, Storage | 16 Comments

A Brief Visit to Disk Geometry Hell

Several weeks ago I thought I’d install NetWare 3.12 in a virtual machine using the BusLogic SCSI controller emulation. While configuring a 1.5 GB virtual drive, I thought I should be safe and not run into any trouble with a … Continue reading

Posted in BusLogic, IBM, NetWare, PC architecture, Storage | 32 Comments

Installing Windows 95 on SCSI in a VM

For the adventurous, it is possible to install Windows 95 in a VM configured with SCSI storage (hard disk, CD-ROM) attached to an emulated BusLogic HBA. This works in VirtualBox, but there’s a catch—the emulated PCI BusLogic HBA must have … Continue reading

Posted in BusLogic, SCSI, VirtualBox, Windows 95 | 7 Comments

Timing In Software Is Too Hard?

I recently attempted to install RedHat Linux 3.0.3 (that’s the one from 1996, not RHEL 3.0) in VirtualBox. I thought I’d use the BusLogic SCSI emulation and the newer 1.3.57 Linux kernel. It did not work at all. The problem … Continue reading

Posted in Bugs, BusLogic, Linux, SCSI | 32 Comments