port-sparc64: installed OK but can't boot on my Adaptec 29160

Subject: installed OK but can't boot on my Adaptec 29160
To: None <port-sparc64@NetBSD.ORG>
From: Joel CARNAT <joel@carnat.net>
List: port-sparc64
Date: 05/02/2004 23:36:15

Hi,

I have an Ultra5 on which I removed the IDE drive, installed an Adaptec 29160 and plugged two U160 disks. I booted a netbsd-2-0 CD snapshot and installed NetBSD by hand (ie, made a raid0 device, untar the tgz, installboot, ...).

Sun Ultra 5/10 UPA/PCI (UltraSPARC-IIi 333MHz), No Keyboard
OpenBoot 3.31, 256 MB (50 ns) memory installed
<snip>
ahc0 at pci2 dev 2 function 0: Adaptec 29160 Ultra160 SCSI adapter
ahc0: interrupting at ivec 14
ahc0: aic7892: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
scsibus1 at ahc0: 16 targets, 8 luns per target

Now I rebooted and am stucked in the PROM...
ok probe-scsi-all
/pci@1f,0/pci@1/pci@1/SUNW,isptwo@4

What is the command to tell my U5 to boot on the first scsi disk (SCSI ID 0, part a) ?

Thanks for help,
	Jo