VAX 6400 booting saga: barred from using MULTINET (sigh!)

From: Gunther Schadow <gunther_at_aurora.regenstrief.org>
Date: Sat Dec 8 23:07:03 2001

Robert Schaefer wrote:

>>Here is what you do: If you have a TK70 writable tape, you simply
>>do SAVE EEPROM for those processors that you will update. Then
>>switch to the processor with the prevailing EEPROM image and say
>>UPDATE or UPDATE ALL ... can't remember off the bat here. Just make
>>sure you upgrade them all to the most recent revision.
>>
>
> I'd like to archive a copy of all (both?!?) the versions I have, just to
> keep the bits from fading away. Only trouble is, I only have one, suspect,
> TK70 tape.


You can use TK50 tape as well. Just put them under a bulk-eraser
first. It is said that the media is actually physically the same,
just different labels.

> If I had ole' Betsy booting into NetBSD, I'd just dd an image of
> the tape and reuse it each time, but she don't, and I dunno if it's even
> possible to make a bit-for-bit copy of anything under VMS.


It's less difficult than you think. But I know just what you mean,
VMS is just trying to be too clever :-). But you can do binary
copies, just do this:

$ MOUNT/FOREIGN/BLOCK=512/RECORD=512 MUC6:
$ COPY MUC6: FILE.001
$ COPY MUC6: FILE.002

Now you don't know off hand what the block size on the tape is.
I think, if you pick a block size smaller than the tape's, you
will receive error messages. Experiment with it a little bit.
Analogously, copy as many files as you can, for you don't know
how many files the SAVE EEPROM command has written.

-Gunther



-- 
Gunther Schadow, M.D., Ph.D.                    gschadow_at_regenstrief.org
Medical Information Scientist      Regenstrief Institute for Health Care
Adjunct Assistant Professor        Indiana University School of Medicine
tel:1(317)630-7960                         http://aurora.regenstrief.org
Received on Sat Dec 08 2001 - 23:07:03 GMT

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