Netboot

I'd like avoid setting up the NFS mount and serve everything via tftp if
possible for the netboot installation of openbsd-4.4 or -current.

On a Sun T1000, I've been able to avoid using rarp, dhcp and most
everything else for a debian except tftpd via inetd by setting the
environment variable 'network-boot-arguments'[1]  And now am attempting
the same for method openbsd, which may or may not be a sound idea.

	setenv network-boot-arguments 	
	host-ip=172.16.24.72,router-ip=172.16.24.1,
	subnet-mask=255.255.248.0,hostname=foo.local,
	file=tftp://172.16.24.23/obsd.img
(note: the above should be one one line and no spaces after the commas)

These work for installing Debian, but give errors trying to boot OpenBSD
If I serve up boot.net via tftp:

	Rebooting with command: boot net
	Boot device: /pci@7c0/pci@0/network@4  File and args:
	100 Mbps full duplex  Link up
	ERROR: Last Trap: Fast Data Access MMU Miss

If I serve up bsd.rd via tftpd:
	Rebooting with command: boot net
	Boot device: /pci@7c0/pci@0/network@4  File and args:
	100 Mbps full duplex  Link up
	ERROR: Last Trap: Fast Data Access MMU Miss

Where should I look for the correct approach to doing netboot via tftp
only?

Regards,
-Lars

[1]	Found them here:
	 https://help.ubuntu.com/community/Installation/Sparc