From: Saif Resun
I want to use the 5th edition UNIX operating system.
...
I want to use it using the SimH emulator but there's no guide about
how to install it or use it.
As they say,'Google is your friend':
https://gunkies.org/wiki/Running_Unix_v5_in_SIMH
Also, V6 Unix is very similar to V5 (the main difference, IIRC, is that V6
supports so-called 'Split I/D space' on the PDP-11) so anything for V6 will
mostly apply to V5:
https://gunkies.org/wiki/Running_UNIX_v6_in_SIMH
https://gunkies.org/wiki/Installing_UNIX_v6_(PDP-11)_on_SIMH
https://gunkies.org/wiki/Installing_UNIX_Sixth_Edition_on_Ersatz-11
Have fun!
Noel