I followed these instructions for building an embedded NetBSD that fits 
on my USB keychain.

http://www.bsdnewsletter.com/2003/09/Features102.html


On Dec 27, 2004, at 9:54 AM, Tim Kelly wrote:

> I need to build some MD/RAMDISK kernels with crunchgen binaries 
> installed,
> in order to more extensively test the patches I have for MBR support 
> in the
> macppc kernel (two lines to fix) and fix to macppc's version of fdisk 
> (also
> only two lines to fix) to allow writing to the first track of a msdos
> partition. Are there some clear and concise instructions somewhere on 
> how
> to build these particular objects? My attempts at doing this are not
> succeeding.
>
> thanks in advance,
> tim
>