🚀 go-pugleaf

Paul S. Sears writes
> In article <1992Oct3.180446.17361@ni.umd.edu> louie@sayshell.umd.edu
> (Louis A. Mamakos) writes:
> => >In article <1992Sep29.163803.20641@dvorak.amd.com>
> => >rpomeroy@aunext3.amd.com writes:
> => >I want to change the boot parameter such that the device at
> => >SCSI address 4 is the default boot device.
> => Actually, the floppy is not a SCSI device.  SCSI address 7
> => corresponds to the NeXT host adaptor's SCSI address.

A bit more on this.  Configuring two devices with the same
SCSI target is a bad thing, and will lead to, at best, the
machine hanging during boot and, at worst, data being silently
corrupted.

> => bsd(2,0,0)sdmach rootdev=sd2
>  Another way is the change the SCSI address of the 400M drive to 0.
>  The internal drive is set by NeXT to have an SCSI address as 1.
>  The device with the lowest SCSI address will end up being sd0.
>  The default boot device for the NeXT is sd0....

This is, in fact, the only way to make the external disk be the
default boot devices.  The NVRAM where the default boot command
is stored only holds 11 bytes.  The required command to boot
from and root on sd2 is far too long.
--
Alan M. Marcum
NeXT Tech Support
amm@NeXT.COM