NetBooting a Quadra from MacOS X

[Andreas Wolf <aw%seqlab.de@localhost>]

Hi,
I was very excited to learn that the latest versions of the BSD/Mac68k 
Booter programm (I'm using 2.0.1a6) are supposed to support diskless 
booting of NetBSD. Thanks to all of you, who have contributed to this. 
For the last couple of days I did a lot of reading on this topic 
(mainly http://www.netbsd.org/docs/network/netboot/) and tried to make 
my G5 running Panther (10.3.9 client) act as a bootp/tftp/nfs server 
for my Quadra 700. I understand that booting over the network is a 
really complicated thing, because client and server can have so many 
different architectures and OSes. Although some things on the OSX side 
work right out of the box, like tftp serving the kernel, I spent 
useless hours on trying to configure the native OSX bootp service so 
that it would cooperate with the NetBSD client. Finally I gave up and 
installed the ISC DHCP-server. This seems to work now, too. However I 
am still struggling with the NFS setup. Either MacOSX complains about 
not being able to change whatever attributes,

mountd[396]: Bad exports list line /export/macbsd/usr
Apr 23 14:31:42 localhost mountd[396]: Can't change attributes for 
/export/macbsd/home.  See 'exports' man page.

or NetBSD insists on /root being not writable. Well, before I go into 
details, I would like to know:

i) Can I use the standard 4.0 kernel at all, or is there a special 
NetBoot kernel available for Mac68k ?
ii) has anyone tried a Mac68k - OS X netboot setup yet (and succeeded) ?
iii) is the NetBSD 4.0 distribution stable with regard to netbooting? 
Sorry, if this is a stupid questions, but I observed random 
hangups/kernel panics at different points during the netboot process. 
The kernel from 3.1.1 gave me immediate kernel panics after the 
TFTP-download. I am using the 3.0.1 distribution on another Quadra and 
it seems to be rock-stable. The latter is booting/running from its 
internal SCSI-disk, though. I would be grateful for any hints or 
comments,

Andreas