I'm using 's kernel for duo 230 to try to boot my duo 210. 
It's in a DuoDock now, with an external HD that contains the mac
system.
I've used all of the internal disk for macbsd.

I get this
message when booting:

[ preserving 93836 bytes of netbsd symbol table  ]
Bootstrapping NetBSD/mac68k.
Getting mapping from MMU.
System RAM:25165824 bytes in 6144 pages
Low = 0x0, high = 0x180000
no internal video at address 0 -- videoaddr is 0xfe100000
Done.
Bootstrapping the pmap system. Pmap bootstrapped
Moving ROMBase from 0x40800000 to 0x9800000.
Video address 0xfe10000 -> 0xb80000.
panic: Unknown/unsupprted machine calss
Stopped at _Debugger+0x6: unlk a6

Is there anything I can do about this?
Would it help using a minidock instead?

thanks,

chr