Re: scsi emulation support is not working
High,
On Fri, 21 Jun 2002, Marcelo Chiapparini wrote:
<snip>
> > I use kernel 2.4.18, and, if I am not mistaken, this was the
> > configuration I had:
> > IDE-support, IDE-cdrom and SCSI-emulation support compiled in. Then
> > SCSI compiled in and SCSI-cdrom as module.
> > > In the help of the "scsi emulation support" said the following:
> > >
> > > "If both this SCSI emulation and
> > > native ATAPI support are compiled into the kernel, the native
> > > support will be used."
> > >
> > > In fact, this is the case, I have compiled the ide-atapi cdrom
> > > support into the kernel too, in order to use the cdrom at hdc.
> > > Perhaps the option in lilo (append = "hdd=ide-scsi") doesn't
> > > overwrite the native ide-atapi support for the cdwriter at hdd? If
> > > this is the case, what
>
> > This is the case.
>
> Then I don't undertand then how you can have both, ide-cdrom support and
> scsi-cdrom support compiled at the same time, and use hdd as a
> scsi device. The ide-cdrom support should overwrite the scsi-cdrom
> support...
>
Look at it this way: when both IDE and SCSI are built in (or not), the IDE
driver is assigned to the IDE devices and the SCSI driver is assigned to
the SCSI devices.
With the kernel option "hdd=scsi" you tell the IDE driver to ignore that
device. The IDE-SCSI driver 'makes' the IDE device like a SCSI one, so it
will be picked up by the SCSI driver.
At least, this is my idea of how it works.
I have no idea why it still does not work. I have used it once, a long
time ago, so I do not know much about it, sorry :-).
Greetz,
Sebastiaan
> Thanks for the help!
>
> Marcelo
>
> --
> Marcelo Chiapparini
> DFT-IF/UERJ
> chiappa@uerj.br
>
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