How to boot from 2nd disk with 1st installed as well?

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3 total messages Started by Edwin Kremer Mon, 11 Jan 1993 14:41

#132

Author: Edwin Kremer
Date: Mon, 11 Jan 1993 14:41

22 lines
1302 bytes

I've added a second SCSI disk to my Indigo on which I've  installed  the
4.0.5 release. To check out the new release, I'm trying to boot from the
second disk, using the PROM monitor:

	boot -f dksc(0,2)/unix

Well, it boots, but still seems to want to use the 1st  SCSI  disk  (the
original system disk in the lowest slot) for root and /usr filesystem.

What other options do I need to `normally' boot from the 2nd disk? Where
do I find full (user) documentation of the PROM monitor? Where do I find
the full range of PROM environment variables documented?

Thanks very much for your help.

						--[ Edwin ]--

-- 
Edwin H. Kremer, systems- and network manager.    [NIC-Whois handle: EHK3]
  Department of Computer Science,    Utrecht University,   The Netherlands
  Internet: Edwin.Kremer@cs.ruu.nl   NeXTmail: Edwin.Kremer@edge.cs.ruu.nl
  X.400   : G=Edwin;S=Kremer;OU=cs;O=ruu;PRMD=surf;ADMD=400net;C=nl

Re: How to boot from 2nd disk with 1st installed as well?

#135

Author: Dave Olson
Date: Mon, 11 Jan 1993 21:34

33 lines
1818 bytes

In <1993Jan11.144142.19697@cs.ruu.nl> edwin@cs.ruu.nl (Edwin Kremer) writes:

| I've added a second SCSI disk to my Indigo on which I've  installed  the
| 4.0.5 release. To check out the new release, I'm trying to boot from the
| second disk, using the PROM monitor:
| 
| 	boot -f dksc(0,2)/unix

	>> boot dksc(0,2)unix root=dks0d2s0 initstate=s
	... (system boots to single user)
	# mount -c /dev/dsk/dks0d2s6 /usr
	# multi

Will do the job.  For long term situations, do this instead of the
mount:

	# cd /dev; ./MAKEDEV disklinks
	# mount -c /usr # (should mount the 2nd disk as /usr)
	# devnm /usr # (should print ... dks0d2s6
	# /etc/autoconfig -f # rebuild kernel to use drive 2 as root disk
	# mv /unix.install /unix
	# reboot

| Where do I find full (user) documentation of the PROM monitor? Where do I find
| the full range of PROM environment variables documented?

All the documentation that there is, is in 'man prom', with a very
small amount in the Installation Guide (or release notes, for hardware
newer than the Installation Guide).
--
Let no one tell me that silence gives consent,  |   Dave Olson
because whoever is silent dissents.             |   Silicon Graphics, Inc.
    Maria Isabel Barreno                        |   olson@sgi.com

Re: How to boot from 2nd disk with 1st installed as well?

#150

Author: Jonathan D. Trudel[ftd]
Date: Tue, 12 Jan 1993 16:05

7 lines
969 bytes

In article <1993Jan11.144142.19697@cs.ruu.nl>, edwin@cs.ruu.nl (Edwin Kremer) writes:
|> Well, it boots, but still seems to want to use the 1st  SCSI  disk  (the
|> original system disk in the lowest slot) for root and /usr filesystem.
|> 
|> What other options do I need to `normally' boot from the 2nd disk? 

Did you modify /etc/fstab properly, or does it refer to the original disk?

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