Voyager framebuffer?

Hello all, 

I'm new to the list.  I have a working Sparcstation Voyager, but I did not get the original distribution disk with it.  When I originally got the machine, it had a NetBSD install (as well as a broken backlight and a bad NVRAM chip, which I've replaced).  That didn't provide the GUI, so I tried installing Solaris 2.6 - which didn't do it either.  (I also tried reinstalling NetBSD.)  Under both operating systems, at boot I get a message about "can't find the framebuffer."  OpenBoot tells me that the video hardware is 'bwthree' and the closest name I can find on the 2.6 install media is bwtwo.  As an experiment, I tried renaming bwtwo to bwthree and placing it in the /platform/sun4m/kernel/drv directory - no go, same error message.  

My first choice would be to install the original software on the machine, if it exists anywhere.  It would, of course, be wonderful to find the original installation media, but I don't mind having to piece together a system.  Does anyone have any guidance for me?  Thanks -- Ian  

A crash reduces
your expensive computer
to a simple stone.

Ian S. King, Sr. Vintage Systems Engineer
Living Computer Museum
A project of Vulcan, Inc.
http://www.livingcomputermuseum.org