> with Apple HD SC Setup for 12 Mb swap plus a root & usr partition,
> did Mkfs on the root & usr, installed with (1.1) base11, netbsd11,

Here's your problem                                        ^^^^^^^^

> - new improved kernel.

This will probably fix the problem.  Unfortunately, the netbsd11 
distribution seems to have had some rather bad scsi code in it.  This was 
fixed shortly after its release, but not quite soon enough.  Anyway, get 
yourself a copy of GENERIC#7 off of puma, it has been fairly stable for me.

Try:

http://ftp.macbsd.com/pub/outgoing/briggs/

It should fix the troubles you are having, if not, please tell us what 
kind of errors your getting at that point.

Later.

-- 
Colin Wood                                      ender@is.rice.edu
Consultant                                        Rice University
Information Technology Services                       Houston, TX

P.S.  There's a brand new Q&A in the FAQ for how to install a new 
kernel.  Check it out.