Righteous, thank you.  One MAKEDEV later and now I can demonstrate:


{0} ok banner
Sun Enterprise 450 (4 X UltraSPARC-II 400MHz), No Keyboard
OpenBoot 3.14, 2048 MB memory installed, Serial #11622039.
Ethernet address 8:0:20:b1:56:97, Host ID: 80b15697.



{0} ok boot net
Resetting ... 


Can't open input device.
screen not found.
Can't open input device.
Keyboard not present.  Using ttya for input and output.
Keyboard not present.  Using ttya for input and output.


Sun Enterprise 450 (4 X UltraSPARC-II 400MHz), No Keyboard
OpenBoot 3.14, 2048 MB memory installed, Serial #11622039.
Ethernet address 8:0:20:b1:56:97, Host ID: 80b15697.



Rebooting with command: boot net
Boot device: /pci@1f,4000/network@1,1  File and args:
Timeout waiting for ARP/RARP packet
Timeout waiting for ARP/RARP packet
Timeout waiting for ARP/RARP packet
Timeout waiting for ARP/RARP packet
13000 >> NetBSD/sparc64 OpenFirmware Boot, Revision 1.7
>> (peter@zipper, Thu May 27 02:24:53 CDT 2004)
bootp: no reply
Using BOOTPARAMS protocol: ip address: 12.30.65.29, hostname: e450
root addr=12.30.65.28 path=/export/e450/root
loadfile: reading header
elf64_exec: Booting /pci@1f,4000/network@1,1/netbsd
5000400@0x1000000+158856@0x1800000+4035448@0x1826c88
symbols @ 0xfef5c440 164+386256+232553 start=0x1000000
chain: calling OF_chain(800000, cbb8, 1000000, fff7fa80, 18)
Fast Data Access MMU Miss
{0} ok 



> From: john heasley <heas@shrubbery.net>
> Date: Tue, 1 Jun 2004 09:49:30 -0700
> To: Peter Eisch <peter@boku.net>
> Cc: NetBSD Port Sparc64 <port-sparc64@netbsd.org>
> Subject: Re: e450 issue
> 
> Tue, Jun 01, 2004 at 10:58:07AM -0500, Peter Eisch:
>> (I moved the console from my terminal server to the netra just before
>> walking out the door this morning, what should my /etc/remote read like to
>> be able to tip out serial B?  e450:dv=/dev/dtyb:br#9600:pa=none:dc: gives
>> me:
>> 
>> netrat1# tip e450
>> /dev/dtyb: Device not configured
>> link down
>> netrat1# 
> 
> The netra has a com(4), so you'd want /dev/ttyCn or dtyCn, n==1 for "tty b".
>