[98197] in RedHat Linux List
Re: Wanted, SCSI bus trick
daemon@ATHENA.MIT.EDU (Sean Hamilton)
Sat Nov 7 09:13:28 1998
Date: Sat, 7 Nov 1998 09:12:53 -0500 (EST)
From: Sean Hamilton <gearhead@interport.net>
To: redhat-list@redhat.com
In-Reply-To: <Pine.LNX.3.96.981106220123.519A-100000@jeeves.seaslug.org>
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
On Fri, 6 Nov 1998 tom@jeeves.seaslug.org wrote:
>
> What does it take to cause a SCSI device to be recognized by the kernel
> after boot time.
>
> Problem here is that I'm using a scanner - seldome used. If it is turned
> on at boot time, it can be turned off and will be recognized by the kernel
> when I go to scan. But, if it fail to turn on the scanner at boot time,
> the kernel knows nothing of it and I have to reboot to use the scanner - a
> drag.
>
> Is there a way to get the kernel to take a look at the SCSI devices after
> boot time, so I can talk to t he scanner even it it wasn't on at boot
> time?
I'm not sure your problem is with the kernel. On both my home and
work machines I see the SCSI adapter's onboard software scanning the
bus and recognizing the connected devices This all happens before the
LILO: prompt and I suspect that if the card hasn't recognized the
device at boot time then it's not gonna let Linux see it either.
Which all makes me wonder if there is a way to "reboot" the SCSI adapter
from inside Linux...
Depending on who made your adapter and how well they support Linux this
might be a good question for the manufacturer.
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