I tries using syboot.fs today on my SS2 (sun4c) and, after loading a little
from the floppy, received:

Data Access Exception
ok

yay, it seems something is either miscompiled or not set up properly in the
creation of the floppy images....

-- 
-- Todd Vierling <tv@wasabisystems.com>  *  http://www.wasabisystems.com/
-- Speed, stability, security, and support.  Wasabi NetBSD:  Run with it.