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Category Archives: SCSI
CF/IDE/SCSI Benchmark Update
To see how the CF-to-IDE-to-SCSI solution really performs, I tried it in a slightly faster system. GA-586HX motherboard (Intel 430HX chipset), AMD K5-133 processor, and PCI SCSI HBAs. The first tested configuration was using a Tekram DC-390 HBA. Sysinfo showed 8.7 … Continue reading
Posted in CompactFlash, SCSI, Storage
10 Comments
Resetting Disks Is Hard
After digging through BIOS listings and disassembling the Adaptec 1542C BIOS as well as the PC DOS 2000 boot sector, it’s clear why the floppy-less SCSI boot does not work on my test system. It’s because disk reset done by the boot … Continue reading
Posted in BIOS, Bugs, SCSI
22 Comments
Booting Is Hard
So I had this brilliant idea of using SCSI drives with old 286/386/486 boards which have old BIOSes that can’t handle IDE drives bigger than 500-ish megabytes. The SCSI HBA is the first one I happened to grab, an Adaptec 1542C … Continue reading
Posted in 386, BIOS, CompactFlash, DOS, SCSI
16 Comments
Ladders and Dragons
While looking at the Windows 95 disk subsystem, something seemed oddly familiar. The nagging feeling was confirmed by the Windows 95 DDK documentation (a file called BLOCK.DOC). The new Windows 95 layered block device driver model called “Dragon” wasn’t all … Continue reading
Posted in OS/2, PC history, SCSI, Windows 95
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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
3 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
10 Comments
Installing Oct ’91 NT from CD
With VirtualBox 4.3, it is possible to install the oldest known pre-release of Windows NT directly from CD, the way Microsoft intended. This is the Fall ’91 Comdex preview which only supported the x86 architecture and a very short list … Continue reading
Posted in Microsoft, NT, SCSI
14 Comments