I've been working on an application to transfer file to/from a SIMH disk image and it's now ready for an alpha release. fsio currently understands DOS/BATCH-11 and RT-11 disk file formats - the code is structured to allow the easy addition of new file systems. To install on Raspbian:
sudo tar xzvPf fsio.tgz
this will load the executable and man pages into the /usr/local tree and 2 .txt files into the current directory. One file (fsioSimh.txt) describes how to
access RT-11 file systems under various DEC PDP-11 operating systems (and VMS) to allow files transfers in and out of the system.
This is an alpha-level release with limited testing so make sure you have a backup of your disk image(s) before using it - it could damage your image
irreparably.
Once the code seems stable I will talk to Mark about making the source available in the simh/simtools github repository.
John.