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Date:      Mon, 24 Mar 2003 23:35:10 -0500
From:      "Bob Perry" <rperry4@earthlink.net>
To:        "taxman" <taxman@acd.net>, <freebsd-questions@freebsd.org>
Subject:   Re: dmesg Analysis
Message-ID:  <017101c2f287$ec8d1190$0501a8c0@HOMEFREE>
References:  <005701c2f273$6f9bd680$0501a8c0@HOMEFREE> <200303242308.04735.taxman@acd.net>

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----- Original Message -----
From: "taxman" <taxman@acd.net>
To: "Bob Perry" <rperry4@earthlink.net>; <freebsd-questions@freebsd.org>
Sent: Monday, March 24, 2003 11:08 PM
Subject: Re: dmesg Analysis


> On Monday 24 March 2003 09:08 pm, Bob Perry wrote:
> > I recently upgraded/reinstalled 4.7 RELEASE and apparently lost use of
my
> > SCSI tape backup system.  The dmesg command indicates that FreeBSD found
> > the controller and tape but I don't understand much more than that.
> >
> > Does anyone know where I might find some documentation which would
explain
> > output resulting from running dmesg?  For instance, one of the lines
reads:
> >     sa0 at adv0 bus 0 target 4 lun 0
>
> many (most?) of the items in dmesg are device drivers and have manpages.
> so first read man man  then try things like
> man -aw sa     you'll see:
> /usr/share/man/cat8/sa.8.gz (source: /usr/share/man/man8/sa.8.gz)
> /usr/share/man/man4/sa.4.gz
>  which tells you there are two man pages for sa.  one is what you are
looking
> for, one is not, so use
> man 4 sa  to see the right one.
>
> repeat that for all the things in dmesg and you'll learn a lot of what
you're
> looking for.

I'll pay more attention to the man pages.  Thanks for the input.

> This can potentially throw you off by some things that have the same name
and
> are not device drivers.  eg man 4 fd  wil not get you the floppy driver,
but
> man 4 fdc will.
>
> hth,
>
> Tim



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