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Date:      Wed, 20 May 1998 08:46:04 -0500 (EST)
From:      Richard J Kuhns <rjk@grauel.com>
To:        Mike Smith <mike@smith.net.au>
Cc:        stable@FreeBSD.ORG, jkh@FreeBSD.ORG
Subject:   Re: panic: root dev has no bdevsw 
Message-ID:  <13666.56988.873158.353135@moran.grauel.com>
In-Reply-To: <199805192240.PAA01134@dingo.cdrom.com>
References:  <13665.62936.648794.309002@sawmill.grauel.com> <199805192240.PAA01134@dingo.cdrom.com>

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Mike Smith writes:
 > > If I missed a "heads up" in -stable, I'm sorry, but I can't find anything
 > > relating to this in the mailing list archives for either -questions or
 > > -stable, at least not by searching for `bdevsw'.
 > > 
 > > I just (about 9:30AM EST) cvsuped the latest -stable bits and made world;
 > > no problems at all.  I then compiled and installed a new kernel which
 > > panics immediatley after the device probes (where it should say `changing
 > > root device to...') with `panic: root dev has no bdevsw'.
 > 
 > You left the 'sd' device out of your new kernel config, I suspect.
 > 

Both you (Mike) and Jordan suggested that I fat-fingered my config file.
This particular config hadn't been touched since last November, and had
been used to build kernels approximately once per month since then.
However, when consulting the experts, it's always a good idea to listen to
their advice, so I started going through the config file line by line.

It turns out that the problem was the line

config kernel root on wd0

Sometime between the end of March and the present, that stopped working.
I have no IDE devices configured, and It Always Worked Before.
Changing it to `root on sd0' took care of the problem.

Thanks.

-- 
Richard Kuhns			rjk@grauel.com
PO Box 6249			Tel: (765)477-6000 \
100 Sawmill Road				    x319
Lafayette, IN  47903		     (800)489-4891 /

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