I attempted the installation again (BTW, this is a Silicon Image
controller on-board -- SOYO Dragon Platinum) and got this error:
panic: mtx_lock() of spin mutex <some gibberish chars>
/usr/src/sys/sys/buf.h:282
cpuid = 0;
Debugger("panic")
Stopped at Debugger+0x46: xchgl %ebx,in_Debugger.0
(forgot to include this in my initial message)
_F