Installing UNIX v6 (PDP-11) on SIMH

Tape boot

Here we load the bootblock and load up the root partition onto the rk disk file...

First the tboot.ini file:

set cpu 11/40
set tm0 locked
attach tm0 dist.tap
attach rk0 rk0
attach rk1 rk1
attach rk2 rk2
d cpu 100000 012700
d cpu 100002 172526
d cpu 100004 010040
d cpu 100006 012740
d cpu 100010 060003
d cpu 100012 000777
g 100000

Once this is run, the simulation will 'lock', hit CTRL+E to break the emulation, and then execute the stand alone program to prepare the hard disk. Type in:

g 0

And the stand alone program will be ready to respond. Here is my install session:

PDP-11 simulator V3.8-1
sim> set cpu 11/40
Disabling XQ
sim> set tm0 locked
sim> attach tm0 dist.tap
sim> attach rk0 rk0
RK: creating new file
sim> attach rk1 rk1
RK: creating new file
sim> attach rk2 rk2
RK: creating new file
sim> d cpu 100000 012700
sim> d cpu 100002 172526
sim> d cpu 100004 010040
sim> d cpu 100006 012740
sim> d cpu 100010 060003
sim> d cpu 100012 000777
sim> g 100000

Simulation stopped, PC: 100012 (BR 100012)
sim> g 0
=tmrk
disk offset
0
tape offset
100
count
1
=tmrk
disk offset
1
tape offset
101
count
3999
=
Simulation stopped, PC: 137300 (BGE 137274)
sim> q
Goodbye

disk install

Here is our dboot.ini for booting from the hard disk:

set cpu 11/40
set tto 7b
set tm0 locked
attach tm0 dist.tap
attach rk0 rk0
attach rk1 rk1
attach rk2 rk2
dep system sr 173030
boot rk0"