[Simh] PDP11 on Simh for public access

[Bryan Davies]

Many thanks to all for the advice.   Unfortunately I'm still not quite
there.

I have written an Expect script which runs Simh and sure enough responds to
the startup prompts.  Unfortunately after it completes the terminal isn't
interactive anymore.  Oddly it still echoes characters to the screen but
with no response - either from RSTS or Rasbian.   If I open another
Terminal, PS shows me the pdp11 emulator running as another process but
tty1 is stuck in bash.

I have included a fork and disconnect at the end of the script as suggested
but to no effect.

Expect commands don't seem to work within Simh.  Should they?


On 18 January 2018 at 09:59, Bryan Davies <bryan.e.davies at gmail.com> wrote:

> Hi,
>
> I volunteer for a computer museum in Cambridge UK where we would much like
> to extend our mini-computer exhibit.   We want to set up a VT100 running
> RSTS/E for our visitors to use. As the system needs to start unattended I
> need it to boot up RSTS from power up.
>
> I have installed Simh on a Raspberry Pi B and connected the VT100 to the
> serial port ttyAMA0.
>
> While I can login to the Pi on the VT100 and boot the emulator manually,
> RSTS/E has a number of prompts within the boot dialogue (Date, Time etc)
> which need to be answered before it is possible for a User to login.  I
> have tried putting these responses in a Shell script, and while that
> 'works' insofar as the boot process completes, it doesn't return control to
> the terminal after the script ends.
>
> Can anyone advise how to do it?
>
>
>
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