misc/58272: [patch] rc.d/diskless detection, dhcp rebuild

[Matt Peterson]

The following reply was made to PR misc/58272; it has been noted by GNATS.

From: Matt Peterson <matt at peterson.org>
To: FreeBSD-gnats-submit at freebsd.org
Cc: Dirk-Willem van Gulik <dirkx at webweaving.org>, phk at freebsd.org
Subject: Re: misc/58272: [patch] rc.d/diskless detection, dhcp rebuild
Date: Mon, 20 Oct 2003 08:11:21 -0700

 On Mon, Oct 20, 2003 at 07:33:10AM -0700, Dirk-Willem van Gulik wrote:
 > 
 > Comparing this to
 > http://wleiden.webweaving.org:8080/svn/node-config/factory/trunk/nodeconfig/
 > where do the same.
 > 
 >  > 3. Move newalias rebuild, only if sendmail is enabled
 > 
 > We moved this to /var/run with a link from /etc
 > 
 > > 4. Re-work DHCP domain-name & DNS to use kenv dhcp.* values (plumbed
 > > from PXE boot loader) OR read from dhclient.leases (in the case of
 > > r/o flash using DHCP).
 > 
 > And same for resolv.conf to /var/run - as dhclient will actualy block/hang
 > when it cannot write its resolv.conf to /etc.
 
 Right, I assume resolv.conf and other etc files are sym-link to a
 writable directory.
 
 > > +rootdev=`sysctl -n kern.rootdev`
 > > +ro_test=`mount | grep $rootdev | grep read`
 > 
 > Rather than detect we also found it useful to have this under
 > mount_rw_root="NO sort of control.
 
 Ahh, you mean 'root_rw_mount', ya; totally, I've updated the patch to
 use vs. the ghetto detection method.
 
 http://matt.peterson.org/FreeBSD/stripdown/diskless.diff