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Date: Mon, 13 Sep 2004 12:28:59 +1000
From: Luke Deller <ldeller@xplantechnology.com>
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Subject: Re: [Qemu-devel] can use scsi?
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To: os2@videotron.ca, qemu-devel@nongnu.org

Marc Collin wrote:
> i do many test with qemu
> 
> i tried to run win 98 with it...
> 
> that run well but in win98, it don't see my scsi card....
> 
> why?
> 
> how to resolve that?
> i have 1 hd, 1 burner and 1 cdrom scsi... and i can't use it

qemu emulates a whole computer system.  You basically have two different computers: a real one and an emulated one.  You're running win98 on the emulated computer system, not the real one.

The emulated computer system includes following hardware (at present):
- a Cirrus 54xx video card (which actually outputs to the qemu window using SDL)
- an IDE controller
- IDE hard disks and cdrom drives (which actually access the disk image file or device you specify on the command line)
- an ne2000 network card.
- keyboard, mouse (which actually read input from the qemu window).
- and more basic hardware that is normally part of a PC motherboard

You can get the emulated cdrom to actually read from your real cdrom by specifying the appropriate command-line parameter; I use:
    -cdrom /dev/cdrom

Instead of "/dev/cdrom" you can use the appropriate filename of your cdrom device, or even the filename of an .iso image.  The emulated cdrom is not a burner, so you won't be able to burn CDs from inside qemu.

Regards,
Luke.