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Date: Sat, 22 Nov 2008 12:00:08 +0100
From: Luigi Rizzo <rizzo@iet.unipi.it>
To: Danny Braniss <danny@cs.huji.ac.il>
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Cc: current@freebsd.org
Subject: Re: RFC - per-host configuration of pxe booting
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On Sat, Nov 22, 2008 at 12:09:21PM +0200, Danny Braniss wrote:
> > [this mailing list is as good as anyone i guess... feel free
> > to forward it if you believe there is a more appropriate forum]
> > 
> > The goal of this email is to figure out how to load host-specific
> > configurations from pxeboot -- maybe as simple as loading
> > /boot/loader.conf.${hostname} and possibly something slightly more
> > flexible that allows me to define machine 'classes' (e.g. based on
> > similar hardware configurations etc.).
> > 
> 
> why not use DHCP? you need it to boot the diskless anyways, and it can provide
> a wealth of information. The code has been around for many years.
> for example, in the dhcpd.conf:
>         option FBSD.ind1 "hw.msk.legacy_intr=1";
>         option FBSD.ind2 "machdep.conspeed=115200";
>         option FBSD.rc-conf4 "rc.ws"
> these are placed, by bootp.c, in kenv.

sure, DHCP is the intended transport for this information, however the
support you mention is not yet in the source tree as far as i can tell.
Perhaps you are referring to your patches at

ftp://ftp.cs.huji.ac.il/users/danny/freebsd/diskless-boot/5.2-bootp.c.diffs ?

cheers
luigi