I've upgraded my sparc IPC from SunOS to NetBSD.

Unless I type probe-scsi at the ok prompt the machine will not boot.

if I reboot I get Level 3 Interupt after it says booting from sd(0,0,0)
I can then reset and boot but just after it says:
cgthree0 at sbus0 slot 2 offset 0x0: SUNW,501-1718, 1152 x 900 (console)
it displays the prom b,c,n prompt over and over again. If I then
power cycle, do a probe-scsi and boot it comes up fine.

This is a an OLD IPC with rom rev 1.6. It is using V 1.4 of the netbsd/sparc
bootprogram.

Here are the dmesg for a successful boot:

Copyright (c) 1982, 1986, 1989, 1991, 1993
        The Regents of the University of California.  All rights reserved.

NetBSD 1.2_ALPHA (GENESIS) #0: Tue Jun 25 12:51:08 BST 1996
    neil@genesis.DOMINO.ORG:/usr/src/sys/arch/sparc/compile/GENESIS
real mem = 12529664
avail mem = 10383360
using 152 buffers containing 622592 bytes of memory
bootpath: /sbus0/esp0/sd@0,0
mainbus0 (root)
cpu0 at mainbus0: Sun 4/40 (MB86900/1A or L64801 @ 25 MHz, WTL3170/2 FPU)
cpu0: 65536 byte write-through, 16 bytes/line, sw flush cache enabled
memreg0 at mainbus0 ioaddr 0xf4000000
clock0 at mainbus0 ioaddr 0xf2000000: mk48t02 (eeprom)
timer0 at mainbus0 ioaddr 0xf3000000 delay constant 10
auxreg0 at mainbus0 ioaddr 0xf7400000
zs0 at mainbus0 ioaddr 0xf1000000 pri 12, softpri 6
zs1 at mainbus0 ioaddr 0xf0000000 pri 12, softpri 6
fdc0 at mainbus0 ioaddr 0xf7200000 pri 11, softpri 4: chip 82072
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
audio0 at mainbus0 ioaddr 0xf7201000 pri 13, softpri 4
sbus0 at mainbus0 ioaddr 0xf8000000: clock = 25 MHz
dma0 at sbus0 slot 0 offset 0x400000: rev 1
esp0 at sbus0 slot 0 offset 0x800000 pri 3: ESP100 25Mhz, target 7
scsibus0 at esp0
sd1 at scsibus0 targ 0 lun 0: <FUJITSU, M2934S-512, 0103> SCSI2 0/direct fixed
sd1: 4153MB, 3421 cyl, 18 head, 138 sec, 512 bytes/sec
sd0 at scsibus0 targ 3 lun 0: <FUJITSU, M2934S-512, 0103> SCSI2 0/direct fixed
sd0: 4153MB, 3421 cyl, 18 head, 138 sec, 512 bytes/sec
le0 at sbus0 slot 0 offset 0xc00000 pri 5: address 08:00:20:0a:c3:15
le0: 8 receive buffers, 2 transmit buffers
cgthree0 at sbus0 slot 2 offset 0x0: SUNW,501-1718, 1152 x 900 (console)
cgthree0: attached to /dev/fb
bwtwo0 at sbus0 slot 3 offset 0x0: SUNW,501-1561, 1152 x 900
root on sd0a

Any ideas?

Neil
--  
Neil J. McRae.             Alive and Kicking.            neil@DOMINO.ORG