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From: Eric Anderson <anderson@freebsd.org>
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Cc: Doug Barton <dougb@freebsd.org>, "Ralf S. Engelschall" <rse@freebsd.org>,
	cvs-src@freebsd.org, cvs-all@freebsd.org,
	src-committers@freebsd.org, Jung-uk Kim <jkim@freebsd.org>
Subject: Re: cvs commit: src/etc/rc.d hostid
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On 05/21/07 14:57, 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.
> 
> DES

[picking random related post to reply to]

The hostid script also is cranky when used on a diskless host, because 
it can't write to it's hostid file.  I've been ignoring it, but I wanted 
to at least mention it.

Shall I file a PR?

Eric