MicroVAX II and NetBSD

I have got some more bits to add to my MicroVAX II - 2 extra RA81s and an RA82 in their own rack unit. This makes RA drives in all now but I can't connect more than 2 at a time as I didn't get any cables with the 3 'new' ones :-(. The RA82 has NetBSD on it but the person who gave them to me said he wasn't sure whether it would work on my machine. When I try to boot off that drive I get the following: 2..1..0.. howto 0x0, bdev 0x11 booting... 10556+552+33996 start 0x0 Nboot :/netbsd 610304+2696+61260 start 0x8c17c ?06 HLT INST PC=00000003 Am I right in thinking that this means I am not going to be able to boot As it is a Unix filesystem I tried to mount it from Ultrix running on the other drive and failed. Is it possible tat I may be able to boot a 'nose around' in the drive or should I just incorporate it into my Ultrix filesystem and forget about NetBSD. Eventually I hope to assist in the VAX-Linux port and then use this machine as a server. If anyone knows of any VAX architecture and/or assembly language tutorials on the web I would welcome the URL, and if anyone in the UK has any books or documentation going spare... ;-) I tried buying books but at about 50UKP each, I have no chance. Regards Pete