>>  It looks like the ffs module does not know how to create / on
>> the ramdisk (md0a) AND/OR expects a filesystem to be ready when
>> it accesses the device.
>
> It's the latter.  A file system image should alread be in place,
> and you typically place it there with mdsetimage.  It might prove
> useful to see how the various bits are put in place by the setup
> down in e.g. distrib/evbarm/.

No initrd is required.  Someone should explain him NetBSD offers
better constructs to replace BusyBox.  INSTALL kernel and /rescue
is prepared with it.  I found it's improved over FreeBSD install.

Toru Nishimura/ALKYL Technology