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How can I get Linux to recognise SCSI Adapter

Posted on 1997-08-18
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Last Modified: 2013-12-15
I have a Future Domain TMC-850 SCSI adapter connected to my
CD Drive. I am trying to install Linux from CD, but when I
create the boot floppy and boot, I get a 'scsi : 0 hosts'
message.

I think I need to know the base address and IRQ of my
adapter. How can I find this info from MS-DOS or Win 3.1?

There is also a section in the SCSI HOWTO (section 5.2.2)
about how autodetection will fail if BIOS is disabled. Could
this be the problem. If so could someone please explain it.
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Question by:garrymac
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ahoffmann earned 100 total points
ID: 1629221
IRQ and Base address are set on your SCSI adapter by switches and/or its BIOS, see docu for the card.
Depending on the BIOS of your motherboard, you may figure out those values in the BIOS-setup.
AFAIK, DOS and Win 3.x have no posibility to get this values, but most drivers report them when loaded.

> SCSI-HOWTO ...
if autoprobing fails, it's best to use the boot parameters (loadlin, lilo or whatever) to set these values.
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by:garrymac
ID: 1629222
I had a look and the jumper settings on my card. It appears to
be configured at IRQ 3 and BIOS Base Address CA00H.

However I think I need the base memory address, nit the BIOS
address. Do you know what is the difference between these?
From examples I have seen on configuring the base memory address
it seems to be an order of 10 bigger (e.g. CA000H, or something).
Could you clarify this please.

I can't work out the base memory address from the jumper
settings.
Would I pass that as an argument to the driver? I use MSCDEX
and FDCD.SYS.

The following message is printed on boot-up

ADAPTER [0] SUPPORTS THE FOLLOWING UNITS:

  SCSI 6 LUN 0 UNIT 0 TOSHIBA CD-ROM XM-4101TA006401/06/94

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Expert Comment

by:ahoffmann
ID: 1629223
Without looking deeper into your comment, I would say that IRQ 3 causes the problem, this interupt is used for serial ports to.
Check this in your /var/adm/boot.msg, the lines beginning with  tty  tell you IRQ etc. .
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