> => very easy: add the flag GATEWAY in your netbsd config file
> (fast and clean way to solve the problem in the first case).
> The size (NMBCLUSTERS) is defined in the machine param.h file.
> 

this is too easy and has undesired effects.

try
options NMBCLUSTERS=X

where X is some # greater than what appears in <machine/param.h>

later,
Adam Glass