🚀 go-pugleaf

In article <1992Jul21.154240.19780@cc.gatech.edu>
	vernard@cc.gatech.edu (Vernard C. Martin) writes:
>From what I can figure out, the NeXT cube always boots from device 0 (or the
>special case of the internal optical).

The OD is not a SCSI device.  I guess you could call it a
"special case," but then too booting from en (thinwire) or tp
(10BaseT) would similarly be a "special case."

>                                       I can set the external disks logical
>unit number to 0 but then it should conflict with the internal disks drive?

That depends on how old the cube is.  The original cubes shipped with
the internal drive set to SCSI UNIT=0 (assuming they had internal
drives).  Later ones (and all slabs) shipped with the internal
drive set to SCSI UNIT=1.  The default boot device is "sd0"--
that's *not* synonymous with SCSI UNIT=0--it's simply the lowest
unit-numbered thing on the SCSI bus that has "boot potential."

>         I was wondering how I can change the internal disks SCSI unit number
>so that the cube won't boot from it.

Refer to NeXTanswers' hardware.412

					-=EPS=-