I use bootp/dhcp with the following dhcpd.conf

         host sparc64 { # dragonfly
                 hardware ethernet 00:03:ba:03:de:0c;    # Adjust to your 
MAC address
                 fixed-address 192.168.0.184;                # Adjust
                 option root-path "/stuff/sparc64a";
                 server-name="192.168.0.183";
                 next-server 192.168.0.183;
         }


The sparc64 will look to tftp for a file named something 
like 19998FBD.SUN4M  dependant on your ip.

Not sure this helps if you can not change settings on the 
dhcpd/bootp/nfs/tftp server.


-Jaime Fournier


On Wed, 6 Dec 2006, Radoslaw Kujawa wrote:

> Date: Wed, 6 Dec 2006 22:50:03 +0100 (CET)
> From: Radoslaw Kujawa <radoslaw.kujawa@altkom.pl>
> To: port-sparc64@NetBSD.org
> Subject: netboot problem
> 
> Hello list.
>  Today I've tried netbooting sparc64 machines on a network, where I had
> no administravie access to DHCP/BOOTP server.
>  I've set up my own RPC bootparams server, but I couldn't find a way to
> force machines to use that server.
>
> ok boot net
> Boot device: /pci@1f,0/pci@1,1/network@1,1  File and args:
>>> NetBSD/sparc64 OpenFirmware Boot, Revision 1.9
>>> (me@spam.goes.here.com, Wed Dec  6 21:14:18 CET 2006)
> net_open: client addr: 10.73.210.186
> net_open: subnet mask: 255.255.128.0
> net_open: net gateway: 10.73.255.254
> net_open: server addr: 0.0.0.0
> Using BOOTP protocol: ip address: 10.73.210.186, netmask: 255.255.128.0,
> gateway: 10.73.255.254
> root addr=0.0.0.0 path=
> open netbsd: Unknown error: code 60
> Failed to load 'netbsd'.
> (...)
>
>  Clients were stuck trying to netboot many different kernels from
> 0.0.0.0. Finally, after trying "vmunix" it failed with:
>
> Boot:
>
>  Typing anything started netbooting with BOOTP again.
>
>  So I've written a simple patch. It adds new parameter -B to ofwboot.
> Using this paramater swaps BOOTP with bootparams (so bootparams are
> tried first, BOOTP second). This solved my problem.
>
> http://strim.aster.net.pl/stuff/bootparamsfirst.diff
>
>  It is against -current.
>
>  Maybe this patch is worth including in NetBSD. Sorry for not updating
> manual page, but I feel that my english is lacking.
>
>  BTW. I noticed that ofwboot options -C and -D are also undocumented.
> What does -C do?
>
> Greets
> Radek Kujawa
>
>