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<div class="moz-cite-prefix"><font face="Helvetica, Arial,
sans-serif">OK - I think I remember how I did this before.<br>
<br>
I connected a physical tape drive to my Linux box, used tapecopy
to write the SimH-format tape image to tape, then used standard
Linux utilities to read individual 'files' off the tape. <br>
<br>
What I was hoping for was a way to skip the physical tape stage
and read 'files' (i.e.blobs) from SimH-format tape images.<br>
<br>
</font>
<div class="moz-signature"><font size="-1"><i>Stephen Merrony<br>
<a class="moz-txt-link-freetext" href="http://www.stephenmerrony.co.uk">http://www.stephenmerrony.co.uk</a></i></font>/dg/<br>
<br>
</div>
On 30/11/2014 08:27, Rob Doyle wrote:<br>
</div>
<blockquote cite="mid:547AD4DA.2000608@gmail.com" type="cite">For
the PDP10, there are utilities that can be compiled for linux that
<br>
can extract files from tape images independent of SIMH.
<br>
<br>
<a class="moz-txt-link-freetext" href="http://www.36bit.org/dec/software/unix-util/">http://www.36bit.org/dec/software/unix-util/</a>
<br>
<br>
tapecopy, tapedump, and t10backup are part of that package. There
is also read20 that can extract files from a TOPS20 dumper tape.
<br>
<br>
Rob.
<br>
<br>
On 11/29/2014 3:02 PM, Stephen Merrony wrote:
<br>
<blockquote type="cite">I should have said that the tape image
contains a number of data files -
<br>
which I can process - but I need to extract each individual
files
<br>
first. I did do this a while ago using tapecopy or tcopy or mt
or
<br>
something-or-other...
<br>
<br>
/Stephen Merrony
<br>
/
<br>
On 29/11/2014 16:48, Clem Cole wrote:
<br>
<blockquote type="cite">
<br>
On Sat, Nov 29, 2014 at 9:32 AM, Stephen Merrony
<br>
<<a class="moz-txt-link-abbreviated" href="mailto:steve@stephenmerrony.co.uk">steve@stephenmerrony.co.uk</a>
<a class="moz-txt-link-rfc2396E" href="mailto:steve@stephenmerrony.co.uk"><mailto:steve@stephenmerrony.co.uk></a>> wrote:
<br>
<br>
extract a tape dump in SimH format
<br>
<br>
<br>
Can you be a little more detailed here. The file is a SimH
format of
<br>
the a tape. But the tape itself has been formatted by the
application
<br>
on the OS that wrote it.
<br>
<br>
eg. if its a UNIX "dump" format tape you need: something to
under
<br>
the SimH format and create a bytes stream to push into a
program that
<br>
understand the UNIX restore format - which also means you
might have
<br>
NUXI issues depend on the simulator that wrote it, since dump
writes
<br>
integers in native formats in the metadata.
<br>
<br>
or if it's a TOPS "dumper" (aka backup) you will need
something to
<br>
under the SimH format and create a bytes stream to feed
program that
<br>
understand the PDP-10 dumper format.
<br>
<br>
FYI: I used to have tools for the later part, although I have
never
<br>
run them on Linux. The last time i ran them was an Alpha under
Tru64.
<br>
I'll have to go digging.
<br>
<br>
</blockquote>
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