Hi,
	I follow the FAQ installation guide and copy the miniroot on to the disk,
an RD53. This takes some 71 mins on my UVAX-II using a TK70. I now reboot the tape again and enter at the colon prompt:-

: ra(0,0,1)gennetbsd 

Which boots ok; it then asks for a root device and I enter:

: ra0*

I then hit return to enter the single user shell.
 	Next I set my new root partition at the hash prompt I enter:-

# newfs /dev/ra0a rd53

Then I try to write the bootblocks:

# disklabel -B /dev/ra0a

This fails and I have to use the raboot version:-

# mount -u /dev/ra0b /
# cd /usr/mdec
# dd if=/dev/rmt8 of=raboot bs=512 count=16

I notice I cannot mount the newly created partition as /

I have tried to copy boot and gennetbsd to ra0a using the following which it does not complain about:-

# cp boot ra0a
# cp netbsd ra0a

( also tried #cp boot /dev/ra0a  etc.)

When  I try to reboot the system with

>>> B DUA0

2..1..0

I get the first line :

howto...

then it says :-
boot failed, errno 21 (Unknown error: code 12)

Dave.

P.S. I come from a background of using RSX,VMS;  but, I am only a user of unix, the flavour being SunOS.