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Date: Wed, 6 Jun 2007 19:42:21 +1200
From: Andrew Thompson <thompsa@FreeBSD.org>
To: Ceri Davies <ceri@submonkey.net>
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Cc: src-committers@freebsd.org, cvs-all@freebsd.org,
	Poul-Henning Kamp <phk@phk.freebsd.dk>, delphij@freebsd.org,
	cvs-src@freebsd.org, "M. Warner Losh" <imp@bsdimp.com>
Subject: Re: cvs commit: src/usr.sbin/sysinstall installUpgrade.c
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On Wed, Jun 06, 2007 at 08:40:02AM +0100, Ceri Davies wrote:
> On Wed, Jun 06, 2007 at 06:57:31AM +0000, Poul-Henning Kamp wrote:
> > In message <200706061141.04765.doconnor@gsoft.com.au>, "Daniel O'Connor" writes
> > :
> > 
> > >On Wednesday 06 June 2007 07:44, M. Warner Losh wrote:
> > >> : '$1~/\\dev\\/(aacd|ad|afd|amrd|ar|da|idad|ipsd|mfid|mlxd|twed)/ &&
> > >> : \ $2~/\\/$/ {print substr($1, 1, index($1, \"s\") - 1)}'
> > >> : /etc/fstab`");
> > >> :
> > >> : where the regex is built from every device name in device_names
> > >> : (which even then doesn't cater for GEOM where devices might be
> > >> : called anything).  This is something that would require a build
> > >> : tool, which is why I haven't done it yet.
> > >>
> > >> "mmcsd" is also a disk.
> > >
> > >Why not iterate over the output of sysctl -n kern.disks?
> > 
> > Wrong answer.
> > 
> > Right answer:  Why not read it from sysctl kern.geom.confxml
> 
> That sounds like the right thing to do, but that sysctl returns nothing
> on my RELENG_6 system; why would that be?

Its a binary variable

sysctl -b kern.geom.confxml


cheers,
Andrew