Re: Multiple LUNS

From: E. Charters (echarters_at_sympatico.ca)
Date: 02/14/05 

Date: Mon, 14 Feb 2005 08:23:56 -0500

Probably probing for multiple LUNS, which is desirable if you are
running a CD tower, or scsi NAS, is turned off by default in the kernel.
You could try recompiling the kernel if you know what options you want,
go into "SCSI support" in "make menuconfig" and de x-ing "probe all luns
on each SCSI device"

I doubt very much that a scanner really has 63 LUN's. It sounds like
a bug to me.

Firewire support is ALSO an option in most kernels. I don't know if
it is turned on in yours although you indicate that the film scannner is
seen in the proc filesystem. IEEE 1394 support will be described in the
text by the command "make menuconfig" when you are in /usr/src/linux
directory. if you type "?" at or after the selection, you will see an
explanation of the meaning of that kernel option in either "make config"
or "make menuconfig".

If you have not recompiled a kernel before then read the README in
/usr/src/linux carefully. "make config" or make menuconfig two of
configuration tools to run before running "make clean", "make" and
make_install. Probably recompiling AND installing modules will also be
necessary.

EC<:-}

pet wrote:
> I'm using Mandrake 10, an Adaptec 2940UW card, Microtek Scanmaker III SCSI
> scanner.
>
> cat /proc/scsi/scsi lists the scanner with 63 LUNS. I have tried to turn
> this feature off from within lilo by appending max_scsi_luns=1 but without
> success.
>
> The multiple LUNS are more of an annoyance than anything else. There is a
> problem with I want to use the Nikon LS8000 film scanner via firewire.
> The Nikon is the last entry on my cat /proc/scsi/scsi list. Vuescan only
> displays about 30 items and they are all the Scanmaker III.
>
> How does one turn off this feature? If it's a matter of recompiling the
> kernel, I could use some guidance.

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