From owner-freebsd-hackers  Sat Oct  5  9:45:58 2002
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Date: Sun, 6 Oct 2002 02:55:26 +1000 (EST)
From: Bruce Evans <bde@zeta.org.au>
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To: Peter Wemm <peter@wemm.org>
Cc: Poul-Henning Kamp <phk@critter.freebsd.dk>,
	Lars Eggert <larse@ISI.EDU>, n0go013 <ttz@blahdeblah.demon.co.uk>,
	current <freebsd-current@FreeBSD.ORG>,
	not on list - please copy <hackers@FreeBSD.ORG>
Subject: Re: [ GEOM tests ] vinum drives lost 
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On Sat, 5 Oct 2002, Peter Wemm wrote:

> Bruce Evans wrote:
> > On Fri, 4 Oct 2002, Poul-Henning Kamp wrote:
> >
> > > Worst case you will have the option to use:
> > >
> > > 	options	NOGEOM
> > > 	options vinum
> >
> > A NOGEOM option would be as acceptable as a NOFFS option for turning off
> > forcing of the one true file system down everyone's throats.
>
> Part of the problem there is a weakness in config that I've threatened
> to fix on more than one occasion.  We do not have a way to have options
> default to on and let people turn the option off.  Negative options
> ("options NOFOO") are a poor substitute.  In the past, a couple of things
> were unifdefed that might have been better served as being 'default to on'
> options or drivers.

Hmm.  Negative options implemented as "negoptions FOO" would work OK for
this.  Options could be defaulted to on by putting them in an included
config file, and then turned off using negoptions.

Bruce


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