[Simh] RSTS/E and TPC formatted tape images

[Michael Richter]

I'm running RSTS/E 9.6 courtesy of Bill Heaton's excellent and helpful site.
 I've got a few TPC files lying around that I've attached in SIMH and am
trying to mount in RSTS.  When I do this, I get the following error back
from RSTS:

$ mount _MM0

?Incorrect density or uninitialized tape


Looking at the TPC file itself, I'm not seeing the problem.  This is how the
tape starts (where ^<foo> is, of course, a single binary character):

P^@VOL1SOURCE                           D%B44310011971
>      3P^@HDR1INIT.DIR         SOURCE00010001000100 8512

3 85123 000000DECRSTS/E           P^@HDR2U0051200000                     M
>           00                            ^@^@^@^B

 Name .Typ    Size    Prot     Name .Typ    Size    Prot    DU2:[170,42]

INIPFX.MAC      81   < 60>    DSKDEF.MAC     101   < 60>

DISKDF.MAC      31   < 60>    TAPDEF.MAC      16   < 60>

INIDFN.MAC      31   < 60>    ODTPFX.MAC       3   < 60>

SILNDX.MAC       7   < 60>    INIFIP.MAC     105   < 60>

INIDSK.MAC      89   < 60>    INITTY.MAC      68   < 60>

INIBOO.MAC      22   < 60>    INIDSI.MAC     211   < 60>

INILOA.MAC      26   < 60>    INICOP.MAC     146   < 60>

INIHAR.MAC     107   < 60>    ^@^BINIDEF.MAC     295   < 60>

INIBEG.MAC      12   < 60>    STACOM.MAC       9   < 60>

INIBLD.MAC       4   < 60>    INISTA.MAC     199   < 60>

INILDI.MAC       3   < 60>    FLC   .MAC       6   < 60>

INILDR.MAC      35   < 60>    INIDST.MAC       3   < 60>

INIINS.MAC     128   < 60>    INIONE.MAC     193   < 60>

INIREF.MAC     103   < 60>    INICLN.MAC     177   < 60>

INISET.MAC      71   < 60>    INIIDS.MAC      19   < 60>

INIMCP.MAC       4   < 60>    INIODT.MAC     134   < 60>

BLDBOT.MAC      16  ^@^B < 60>    INIBBR.MAC       3   < 60>

ROOT  .MAC     303   < 60>    INIPAT.MAC     105   < 60>

INIIDE.MAC      16   < 60>    ASMONE.CMD       1   < 60>


To me this looks like a perfectly fine bit of data.  What am I doing wrong
when I'm mounting it?  Is this perhaps not a tape file but instead a
different class of device?

-- 
"Perhaps people don't believe this, but throughout all of the discussions of
entering China our focus has really been what's best for the Chinese people.
It's not been about our revenue or profit or whatnot."
--Sergey Brin, demonstrating the emptiness of the "don't be evil" mantra.
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