Confused about booting new kernels

Hi,

The problem I had several months ago still has no resolution. I've 
reinstalled the latest bootblk and ofwboot built from netbsd-7 sources 
from today, then tried booting a new netbsd-7 GENERIC kernel, then 
-current from nyftp.netbsd.org, and still nothing newer than 6.1 boots:

Sun Fire V100 (UltraSPARC-IIe 548MHz), No Keyboard
OpenBoot 4.0, 2048 MB memory installed, Serial #53885934.
Ethernet address 0:3:ba:36:3b:ee, Host ID: 83363bee.



Executing last command: boot
Boot device: disk  File and args:
NetBSD IEEE 1275 Multi-FS Bootblock
Version $NetBSD: bootblk.fth,v 1.13 2010/06/24 00:54:12 eeh Exp $
>> NetBSD/sparc64 OpenFirmware Boot, Revision 1.17 (Mon Dec  8 07:17:39 
UTC 2014)
Failed to load 'netbsd'.
: trying netbsd.gz...
open netbsd.gz: No such file or directory
Failed to load 'netbsd.gz'.
: trying netbsd.old...
=0x8870e0
Loading netbsd.old: 8096640+553120+339920 [601584+393775]=0x9cd9a8
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
     2006, 2007, 2008, 2009, 2010, 2011, 2012
     The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
     The Regents of the University of California.  All rights reserved.

NetBSD 6.1_STABLE (SHANNON) #0: Wed Apr  9 21:18:45 UTC 2014
...


netbsd in this example was from HEAD on nyftp, and netbsd.old was from a 
while ago. The bootloader also claims to not be able to load an install 
kernel, too.

Any thoughts or suggestions?

Thanks,
John Klos