From: shoppa@trailing-edge.com (Tim Shoppa)
Subject: [pups] bootstrapping an RT-11 image via VTserver
Date: Thu, 7 Feb 2002 06:23:46 -0500 (EST) [thread overview]
Message-ID: <20020207112346.A6A2218336@mudd.trailing-edge.com> (raw)
In-Reply-To: <NBBBKGHOAIDAAHFIJOFGGEFBENAA.engdahl@safeaccess.com> from "Jonathan Engdahl" at Feb 06, 2002 10:09:35 AM
> One assumption is that the utility only uses memory and TT: system calls --
> no disk accesses or swapping. Is it possible to abuse RT-11 in this manner?
RT-11 does support magtape installation via a special version of DUP
called MDUP. If you look on a full RT-11 V5.x distribution, you will
find "MDUP.MT", "MDUP.MS", and (depending on version number) "MDUP.AI"
and "MDUP.MU". These are "snapshots" of RT-11 systems with a single
tape driver (MT, MS, or MU) and a number of different disk drivers
installed (so they don't have to be FETCHed) and running the special
install-only build of DUP.
I think there is some MDUP info in the doc set, though it is
heavily oriented (of course) towards magtape installtion, not
serial port installation. But the idea is sound.
> I wonder if it would be possible to bootstrap a VM0: image into high RAM and
> boot from it?
Yes, this works, and is even officially supported in the later 5.x
releases (where it is used as part of the AI installation procedure.)
Tim.
prev parent reply other threads:[~2002-02-07 11:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-06 15:09 Jonathan Engdahl
2002-02-07 11:23 ` Tim Shoppa [this message]
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