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From: Jung-uk Kim <jkim@FreeBSD.org>
To: Dag-Erling =?iso-8859-1?q?Sm=F8rgrav?= <des@des.no>
Date: Mon, 21 May 2007 16:05:35 -0400
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Cc: cvs-src@FreeBSD.org, Doug Barton <dougb@FreeBSD.org>,
	"Ralf S. Engelschall" <rse@FreeBSD.org>, cvs-all@FreeBSD.org,
	src-committers@FreeBSD.org
Subject: Re: cvs commit: src/etc/rc.d hostid
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On Monday 21 May 2007 03:57 pm, Dag-Erling Smørgrav wrote:
> Jung-uk Kim <jkim@FreeBSD.org> writes:
> > 'smbios.system.uuid' is exported from loader, not from kernel. 
> > And it already checks two things, i.e., all zero's and all
> > 0xff's, which are the most common and 'useless' UUIDs.  If the
> > SMBIOS has one of these, it is not set at all.
>
> Is it safe to assume that smbios.system.uuid returns a string of
> the correct form (the correct amount of hex digits with hyphens in
> the right places) which is neither all-bits-zero nor all-bits-one?
> In that case, there is no need to check anything in etc/rc.d/hostid.

Unless someone mistakenly sets it from /boot/loader.conf, that's 
correct. ;-)

Jung-uk Kim