[Simh] Unix v7 tty terminals in SimH pdp11

[Clem Cole]

Did you make the proper entries in /dev for the devices?
You need those before you edit ttys, you also need to do an kill -1 1
to tell init to reread the ttys file.

Send me email privately at home if you want a little more help.   IIRC you
are also  Eastern time ... I'm around today.

Clem

On Sat, Oct 14, 2017 at 9:56 AM, Will Senn <will.senn at gmail.com> wrote:

> Thanks, Johnny. I found my notes on when I did this in V6. I had the
> following in my ini file:
> set dci en
> set dci lines=8
> set dco 7b
> att dci 5555
>
> and when I boot V6 and telnet into it I get this:
> telnet localhost 5555
> Trying ::1...
> Connected to localhost.
> Escape character is '^]'.
>
>
> Connected to the PDP-11 simulator DCI device, line 0
>
>
> login: dmr
> Login incorrect.
> Name: root
> #
>
> Which is great. I tried the same in V7 after editing /etc/ttys, which is
> different in V7 than V6, having lines like:
> 14console
> 00tty00
> 00tty01
>
> Which I changed to:
> 14console
> 10tty00
> 10tty01
>
> After reboot, no go though. The telnet session is unresponsive.
>
> Any ideas?
>
> Thanks,
> Will
>
> On 10/14/17 2:14 AM, Johnny Billquist wrote:
>
>> I haven't played with V7, but I assume there must either be an /etc/ttys,
>> or something similar, which tells Unix on which terminal lines to start a
>> login process at boot. Otherwise they are going to be very silent.
>>
>> Also, remember to hit enter, as they will not spontaneously print out a
>> prompt just because you telnet in. They have already printed a prompt when
>> the login program started.
>>
>>   Johnny
>>
>> On 2017-10-14 06:13, Will Senn wrote:
>>
>>> Hi,
>>>
>>> It's been a while since I used SimH pdp11 to do anything beyond boot
>>> Unix V6/V7 for a single user. I would like to be able to use the V7 system
>>> in multiuser mode with multiple users and I can't quite wrap my mind around
>>> the problem, so I am asking y'all for help. I am sure I'm butchering the
>>> discussion as I'm a bit unclear on what device is doing what, but
>>> ultimately I want to be able to telnet locally to a port that the running
>>> Unix Version 7 will respond to with a TTY that I can log in to. According
>>> to the document Setting Up Unix - Seventh Edition by Charles B. Haley and
>>> Dennis M. Ritchie, V7:
>>>
>>> The DC11 driver is set to run 4 lines. This can be changed in dc.c.
>>> The DH11 driver is set to handle 3 DH11's with a full complement of 48
>>> lines. If you have less, or more, you may want to edit dh.c.
>>> The DN11 driver will handle 4 DN's. Edit dn.c.
>>> The DU11 driver can only handle a single DU. This cannot be easily
>>> changed.
>>> The KL/DL driver is set up to run a single DL11-A, -B, or -C (the
>>> console) and no DL11-E's. To change this, edit kl.c to have NKL11 reflect
>>> the total number of DL11-ABC's and NDL11 to reflect the number of DL11-E's.
>>> So far as the driver is concerned, the difference between the devices is
>>> their address.
>>>
>>> This sounds promising as these seem like terminals to me and each has
>>> plenty of lines if only I could get simh to serve up the devices and attach
>>> them to telnet ports, and if Unix will actually provide ttys on those
>>> devices.
>>>
>>> I read the docs and tried adding variations of:
>>>
>>> set dli lines=4
>>> attach dli 3633
>>> set dlO0 nodataset
>>> set dlO1 nodataset
>>>
>>> to my pdp11 boot.ini file, as well as dc versions of the above and and
>>> and...
>>>
>>> I telneted to port 3633 locally after each reconfiguration, but didn't
>>> get any unix output on the telnet session.
>>>
>>> I appreciate any helpful comments or suggestions.
>>>
>>> Thanks,
>>>
>>> Will
>>>
>>>
>>>
>>
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