I had some trouble getting the drive to work on my XT, though when i put the controller and drive on another machine, it seemed to work ok. In the readme.txt file from the beta9sr1 ISO file I found this:

-=-=-=-=-=-=-=- SNIP -=-=-=-=-=-=-=-
Platform:            what to download:
---------------------------------------------------------------------
8086/80186/80286 : - download diskette distribution if available
http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/old/beta9sr1/disksets
                  - alternative #1: download ODIN (One Disk INstaller)
http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/old/beta9sr1/disksets/ODIN
                  - alternative #2: download zipfile and split onto disks:
http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/old/beta9sr1/disksets/zipfiles
                  - alternative #3: get FreeDOS install disk
http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/old/beta9sr1/fdos1440.img

There are no known cdrom drivers for pre-386 systems, please contact us if you have a pre-386 system equiped with a CD or DVD drive, so we might consider writing a cdromdriver
                    for these old systems.
-=-=-=-=-=-=- SNIP -=-=-=-=-=-=-=-

As you can see from my previous mailing list post, I do indeed have a pre-386 system with a CDROM. The above snip leads me to belive that the cdextensions file (though it runs on my XT) hasn't been debugged for that platform, and may not even be properly compiled (e.g. 386 optimizations)? Could any devs shed some light on this, perhaps?

- Nick Bright

Nick Bright wrote:

I hit up google and actually found a driver specific to this 8 bit scsi card I've got on Adaptec's website. For the sake of the list, I will post a link to the page as well as the scsi driver and some notes:

"Adding a CDROM to an XT": http://www.seasip.info/AmstradXT/cdrom.html
Adaptec PowerSCSI software: http://www.adaptec.com/worldwide/support/driverdetail.jsp?sess=no&filekey=pwrscsi4.exe&language=English+US
Driver works with the following SCSI Products (and possibly others):

SCSI2GO
TMC-830
TMC-845
TMC-850M
TMC-860M
TMC-885M
TMC-PNP-1630
TMC-PNP-1640

Configuration Directives to load driver:

Config.sys example:

DEVICE=DCAM950.EXE /CA00 3
DEVICE=FDCD.SYS /D:FDCD0001 /F/R/Z

|DEVICE=DCAM950.EXE /CA00 3| says that there's a Future Domain SCSI controller at address CA00h, IRQ 3. These settings match the jumpers on the SCSI card itself. I set the card to IRQ 3 so it wouldn't
conflict with the hard drive controller on the motherboard.

|DEVICE=FDCD.SYS /D:FDCD0001 /F/R/Z| says that there's a CDROM drive attached to the controller. The |/D:MSCD0001| gives the drive an ID so that MSCDEX can use it (see below). The other bits (|/F/R/Z| are options to do with scanning for the drive, and probably aren't necessary).

Autoexec.bat example:
shsucdx /Q /D:FDCD0001


I'm still working on getting my particular machine going with this, the above text is taken from the first link in this message. Credit goes, of course, to the author of that page.

- Nick Bright


Blair Campbell wrote:

boot floppy image and wrote it to disk. It does boot and read the hard
drive ok, but I have yet to figure out how to make the SCSI CD-ROM work.
Is there a generic driver for SCSI cd-rom?


Try doing a search for ASPICD.SYS


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