The new KA41 support as least recognizes the system.  It however hand
trying to probe the SCSI bus.

I have a KA42-B V1.2 with a ST506/SCSI controller.

>>> b esa0

-ESA0
Nboot
: /netbsd
boot: client IP address: 16.20.120.207
boot: client name: bsdvax.lkg.dec.com
root addr=16.20.120.160 path=/netbsd/clients/bsdvax
671744+36864+73760 start 0x9564c
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 1.2C (GENERIC) #83: Sat Mar 22 21:53:22 CET 1997
    ragge@multivac:/usr/src/sys/arch/vax/compile/GENERIC

realmem = 25034752
avail mem = 19970048
Using 1222 buffers containing 1251328 bytes of memory.
backplane0 (root)
cpu0 at backplane0: MicroVAX 3100 (KA41)
vsbus0 at backplane0
le0 at vsbus0: address 08:00:2b:0d:e9:b1
le0: 32 receive buffers, 8 transmit buffers
ncr0 at vsbus0: scsi-id 7
scsibus0 at ncr0: 8 targets

I did set the initiator to 7 so it either picked it properly or choose
the same value.  I have two RZ56s at 0 and 1 on the SCSI bus.

-- 
Matt Thomas               Internet:   matt@3am-software.com
3am Software Foundry      WWW URL:    http://www.3am-software.com/bio/matt.html
Westford, MA              Disclaimer: I disavow all knowledge of this message