Re: [pups] creating disk images - TUHS

21 Feb 2001

...
  From owner-pups(a)minnie.cs.adfa.edu.au Wed Feb 21 09:46
PST 2001
 Date: Wed, 21 Feb 2001 12:29:48 -0500 (EST)
 From: Bill Gunshannon &lt;bill(a)cs.scranton.edu&gt;
 To: PUPS Mailing List &lt;pups(a)minnie.cs.adfa.edu.au&gt;
 Subject: [pups] creating disk images
 I know it is probably simple, but my experience is with the real
 thing and this is the first time I have tried to do anything but
 play with one of the emulators.
 How do you create new blank disk images for the Supnik emulator??
 In particular, I am trying to create some RM03's to give me more
 room to work with Ultrix-11.  I am trying to make some install
 kits on different media so that more people will be able to get
 it, not only on emulators, but also on real machines, where it
 is much more fun.  :-) 
I have done it with
        dd if=/dev/zero of=newdisk.dsk bs=1k count=10240
to make 10MB RL02 images.  Followed by the lightly-documented
step in the Supnik emulator of attaching the disk image and writing
the badblock table.  Followed by (for RT11) INIT/NOQ DL1
Corresponding for a Unix system would be mkfs(8) or newfs(8),
whichever you have.
I think it is only the RL disks that need the badblock step.
     carl
--
        carl lowenstein         marine physical lab     u.c. san diego
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 From Warren Toomey &lt;wkt(a)henry.cs.adfa.edu.au&gt; Thu
Feb 22 10:34:08 2001 Received: from henry.cs.adfa.edu.au (henry.cs.adfa.edu.au
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From: Warren Toomey &lt;wkt(a)henry.cs.adfa.edu.au&gt;
Message-Id: &lt;200102220034.f1M0YAG05750(a)henry.cs.adfa.edu.au&gt;
Subject: [pups] Re: V6 image for 11/23
In-Reply-To: &lt;3A940637.83A0591B(a)tampabay.rr.com&gt; from Ken Wellsch at "Feb 21,
 2001 01:17:27 pm"
To: Ken Wellsch &lt;kwellsch(a)tampabay.rr.com&gt;
Date: Thu, 22 Feb 2001 11:34:08 +1100 (EST)
CC: PDP-11 Unix Preservation Society &lt;pups(a)minnie.cs.adfa.edu.au&gt;
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In article by Ken Wellsch:
...
  My part was one of deciphering what came off an old
800 BPI
 mag tape a decade ago and caring about preserving this bit of the past.
 [Thanks go to those] who handed me the tape from the
 Computer Graphics Lab at U of Waterloo (and the CGL folks for hanging
 onto the tape in their library) to folks like Alan Bowler who kindly
 pulled a raw image of the tape off on our old Honeywell system because
 all our UNIX systems did not support 800 BPI on their tape drives any
 more...
 -- Ken 
Ken, if this image isn't already in the archive, can you send it in?
Thanks,
        Warren
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