Date: Sun, 1 Apr 2001 23:15:36 -0400
From: Brian Dean <bsd@bsdhome.com>
To: Matt Dillon <dillon@earth.backplane.com>
Cc: Falco <krepel@fokus.gmd.de>, Mathew KANNER <mat@cs.mcgill.ca>, freebsd-current@FreeBSD.ORG
Subject: Re: new rc.diskless{1,2} files
Message-ID: <20010401231536.F486@vger.bsdhome.com>
In-Reply-To: <200103302253.f2UMrPY05575@earth.backplane.com>; from dillon@earth.backplane.com on Fri, Mar 30, 2001 at 02:53:25PM -0800
References: <3AC4C496.60861EB6@fokus.gmd.de> <20010330125701.C17585@cs.mcgill.ca> <3AC4EFD9.585ECC77@fokus.gmd.de> <200103302253.f2UMrPY05575@earth.backplane.com>
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On Fri, Mar 30, 2001 at 02:53:25PM -0800, Matt Dillon wrote:
>
> P.S. To anyone who wants to cleanup the rc.diskless files,
> please be my guest! I wrote them originally and they worked
> 'ok', but then some people mangled them and ever since they
> haven't worked right. I don't have time to clean them up
> myself. They could use a complete rewriting, IMHO.
>
> -Matt
I've used these to set up a NFS root area for a bunch of servers, but
each server has a local disk where I put /var, swap, and a /local
mount point for things that need to be accessed a lot. I found
rc.diskless1 was fine, but I needed to hack up rc.diskless2 pretty
thoroughly for my own situation. It provided a good template, though :)
However, there was one area that I thought you did kind've backwards.
That was the sucking in of the /etc files. I'm referring to the
following in rc.diskless1 where you check for host-specific files,
followed by network, then a default config:
if [ -d /conf/${bootp_ipa} ] ; then
cp -Rp /conf/${bootp_ipa}/etc/* /conf/etc
elif [ -d /conf/${bootp_ipbca} ] ; then
cp -Rp /conf/${bootp_ipbca}/etc/* /conf/etc
else
cp -Rp /conf/default/etc/* /conf/etc
fi
I've found that one can reduce a lot of common file duplication by
reversing that logic, going after "default" first, then
"network-specific", finally followed by "host-specific" files:
if [ -d /conf/default/etc/ ]; then
cp -Rp /conf/default/etc/* /conf/etc
fi
if [ -d /conf/${bootp_ipbca} ] ; then
cp -Rp /conf/${bootp_ipbca}/etc/* /conf/etc
fi
if [ -d /conf/${bootp_ipa} ] ; then
cp -Rp /conf/${bootp_ipa}/etc/* /conf/etc
fi
The idea of this being that most /etc files go into "default", and
only overrides go into the "network" and "host-specific" directories.
Would folks support and agree to a change like this?
-Brian
--
Brian Dean
bsd@FreeBSD.org
bsd@bsdhome.com
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