From owner-freebsd-questions  Thu May 10 10:26:40 2001
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From: morten@hotpost.dk
Date: Thu, 10 May 2001 19:26:33 +0200
To: freebsd-questions@freebsd.org
Subject: Re: dmesg buffer between reboots
Message-ID: <20010510192633.B560@hotpost.dk>
References: <200105100308.XAA01149@scarlet.my.domain> <001b01c0d952$246e54d0$0701a8c0@darryl>
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In-Reply-To: <001b01c0d952$246e54d0$0701a8c0@darryl>; from darryl@osborne-ind.com on Thu, May 10, 2001 at 08:07:17AM -0500
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On 10, maj, 2001 at 08:07:17 -0500, Darryl Hoar wrote:
> dmesg > dmesg_sav.  Puts the contents into a file name for
> preservation.  The question then becomes, how to automate
> it so that it is done everytime before shutdown.  

I've been using this in /etc/rc.local (on OpenBSD though, but should be
the same on FreeBSD):

# writing dmesg to file
if [ -x /sbin/dmesg ]; then
        export BOOT_TIME=$(date "+%Y-%m-%d_%H:%M:%S");
	        echo -n ' dmesg';       /sbin/dmesg > \
	                /var/log/dmesg/dmesg_$BOOT_TIME; gzip -9 \
			/var/log/dmesg/dmesg_$BOOT_TIME
fi

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