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

From: Gunther Schadow <>
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:


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 Schadow, M.D., Ph.D.          
Medical Information Scientist      Regenstrief Institute for Health Care
Adjunct Assistant Professor        Indiana University School of Medicine
Received on Sat Dec 08 2001 - 23:07:03 GMT

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