[Simh] DECUS C

[Rich Alderson]

> From: "Shoppa, Tim" <tshoppa at wmata.com>
> Date: Wed, 18 Aug 2010 14:03:26 -0400

>> I've tried attaching them to every disk device I can emulate and
>> can't access a single one of them from the actual PDP-11 (always
>> with the ever-helpful "???Disk pack mount error" or equivalent
>> each time).

> They are 512-bytes-per-sector disk images with RT-11 filesystems. Commonly
> used as a substitute for "directories" in RT-11 and known as "logical
> disks". See the RT-11 documentation for the LD: driver for post-V5 RT-11.

> John Wilson's PUTR deals great with these.

> RSX and RSTS can access physical RT-11 disks via FLX; VMS can access RT-11
> disks and logical disks via EXCHANGE.

So, do I understand correctly that I can attach one of these .dsk files to
a drive in a SimH PDP11 instance, run RSX-11M or RSTS/E, and FLX will do the
right thing with it?  Or is there other magic involved?

                                                                Thanks,
                                                                Rich