> From: tamsky@ugcs.caltech.edu (Marc Tamsky)
> Date: Wed, 2 Nov 1994 01:27:03 -0800
> 
> I have a 3/50 with a bootable SunOS drive at ID=0.
> When I change the SCSI ID on the drive to ID=1, and boot with:
>   b sd(0,4,0)
[ ...it doesn't work...]

The correct incantation for SCSI ID=1 is:
b sd(0,8,0)

For your info, here are the SCSI device names:

SCSI Id 	Unix device	PROM device (they are hex :-)
0		/dev/sd0x	sd(0,0,0)
1		/dev/sd2x	sd(0,8,0)
2		/dev/sd4x	sd(0,10,0)
3		/dev/sd6x	sd(0,18,0)

Then, if you have a second SCSI controller, it uses:

SCSI Id 	Unix device	PROM device (they are hex :-)
0		/dev/sd1x	sd(1,0,0)
1		/dev/sd3x	sd(1,8,0)
2		/dev/sd5x	sd(1,10,0)
3		/dev/sd7x	sd(1,18,0)

Gordon Ross