A.P. Lawrence

sconf -v

If this isn't exactly what you wanted, please try our Search (there's a LOT of techy and non-techy stuff here about Linux, Unix, Mac OS X and just computers in general!):

From: johnd@sco.COM (John DuBois)
Subject: Re: Wanting to probe SCSI bus to discover devices
Date: 21 Jun 2001 17:57:13 GMT References: <20010621111710.C13735@jpradley.jpr.com>

In article <20010621111710.C13735@jpradley.jpr.com>,
Jean-Pierre Radley  <jpr@jpr.com> wrote:
+Ronald J Marchand propounded (on Thu, Jun 21, 2001 at 05:47:02AM +0000):
+| Jean-Pierre Radley <jpr@jpr.com> wrote in message
+| news:20010620161909.J1135@jpradley.jpr.com...
+| > Ronald J Marchand propounded (on Wed, Jun 20, 2001 at 07:06:12PM +0000):
+| > | John DuBois <johnd@sco.COM> wrote in message
+| > | news:9gqo3t$i6t$1@hobbes.caldera.com...
+| > |
+| > | > In article <20010620131948.H1135@jpradley.jpr.com>, Jean-Pierre
+| > | > Radley <jpr@jpr.com> wrote:  +My impression is that 'sconf -v'
+| > | > simply reports what the kernel expects to find at various SCSI
+| > | > ID numbers on each bus and does not actually probe any devices
+| > | > at those locations to see if they're present and what their
+| > | > ROM chip reports by way of further identication; whereas the
+| > | > 'cdrecord -scanbus' command that I suggested yesterday does in
+| > | > fact get bytes from the hardware.
+| > | >
+| > | > Nope - it looks that way, but only because 'sconf -v' prints
+| > | > its output in mscsi format. 'sconf -v' really does generate its
+| > | > output from a scan.
+| > |
+| > | I have a machine configured with an external removable fixed
+| > | disk @ Sdsk 0 0 4 0.  I turn the unit's power off and 'sconf -v'
+| > | continues to report the device.
+| >
+| > Same behavior if you detach the SCSI cable?
+|
+| To my surprise .. Yes.  I would have expected the bus to freak out,
+| but it didn't.  I left alad out of the above information.  This is
+| 5.0.6 also.
+|
+| I also booted the machine with the unit off and it was not reported.
+| I turned it on and it still was not reported.  So I guess that it does
+| not poll the bus.
+
+Roland: Your message was practially unreadable -- please use 'par' to
+reformat before sending out stuff with so many nested quotes.
+
+John: what say you?

sconf -v returns information from a kernel table that is indeed produced by a
bus scan.

        John
-- 
John DuBois     johnd@caldera.com       KC6QKZ/AE
I wish to God these calculations had been executed by steam. - Charles Babbage

Psst - Wanna work for yourself?

Comments


Add your comments

Why no "Digg this!" etc.?

Need eyes on the ground at your customer's site?
Installation and light training Boston and New England
Reliable and experienced, punctual and professional.

Enter your email address for automatic notification of new posts here
(be sure to whitelist 'feedburner.com' if you use spam filtering)

/Bofcusm/1183.html copyright 1997-2004 (various authors) All Rights Reserved

Have you tried Searching this site?

Unix/Linux/Mac OS X support by phone, email or on-site: Support Rates

This is a Unix/Linux resource website. It contains technical articles about Unix, Linux and general computing related subjects, opinion, news, help files, how-to's, tutorials and more. We appreciate comments and article submissions.

Publishing your articles here