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From: info-vax@ucbvax.UUCP
Newsgroups: mod.computers.vax
Subject: Need help configuring an 11/780
Message-ID: <8602052015.AA07069@RDCF.SDC.UUCP>
Date: Wed, 5-Feb-86 14:59:24 EST
Article-I.D.: RDCF.8602052015.AA07069
Posted: Wed Feb  5 14:59:24 1986
Date-Received: Sun, 9-Feb-86 02:03:57 EST
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()

Any 780 wizards out there?

We are running SysV V2R2 on a Vax 11/780.  It has been configured
to boot off an RP06 on NEXUS 8 (drive 0).  I'm trying to get it to
boot off drive 0 of NEXUS 10, which is an Emulex massbus controller
currently speaking to 3 CDC 9766 drives.

I've built a root file system on the CDC, configured a kernal
to mount the CDC as root, and copied (via dd) the boot track
from the rp06 to the CDC drive.  The new kernal works correctly,
but the sash still gets booted off the rp06.  (I know because
it won't boot when I turn the drive off.)  Aha, says I, you
have to change the disk boot procedure on the console floppy.
Well, that's evidently not as easy as it sounds.  I've tried
all reasonable permutations of the boot script, and haven't
found one that works.  (The error is always 'double fault error'.)

I'd include the boot script we're using now, but am not sure
whether that might violate some obscure DEC copyright.

My questions are as follows:

Do I use TYPE '0' for a CDC drive in the boot script?

If the CDC drive I'm trying to boot from is the first one
on the Emulex controller, is the 'drive number' still 0?
(I would assume so.)

Should I have changed something in the boot track instead of merely
copying it from the rp06?

Does it make a difference what the name of the node is?
In other words, the first partition of the rp is labeled
'0s0', and the first partition of the CDC is labeled '1s0'
in /dev.

Am I missing something?

As usual, any and all assistance will be greatly appreciated.
Thanks.


			Ron
-- 
--
		Ronald O. Christian (Fujitsu America Inc., San Jose, Calif.)
		ihnp4!pesnta!fai!ronc

Oliver's law of assumed responsibility:
	"If you are seen fixing it, you will be blamed for breaking it."