Installing 32v on SIMH

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This is the procedure that I have used to install 32v onto SIMH's vax 11/780 emulator. This is based on the work of Nao. You can also follow along from the guide Setting up version 1.0 of unix/32v

Requirements

You will need the following materials to put together a 32v installation:

  • A compiled binary of vax780 from SIMH, along with the vmb.exe again from SIMH.
  • A working copy of bzip2


You can download the starunix from nao's site


Or you can download the tape image from sourceforge below:


Preparing for installation

If you downloaded the tape image from sourceforge simply bzip2 -d the file, and we are almost ready to go... This is the 'prefered' way for windows users, as they would have to hunt for a copy of tar.

With the tape file extracted we can proceede to the installation.

Boot 1.

We are going to use the following config file to start the first phase of the installation. Save the following configuration into a file such as 'tboot.ini'. Since we are going to boot directly from the tape.

tboot.ini

set rq dis
set lpt dis
set rl dis
set hk dis
set rq dis
set rqb dis
set rqc dis
set rqd dis
set ry dis
set ts dis
set tq dis
set dz lines=8
set rp0 rp06
at rp0 rp06.disk
set tu0 te16
at tu0 32v.tape
D 30000 20009FDE
D 30004 D0512001
D 30008 3204A101
D 3000C C113C08F
D 30010 A1D40424
D 30014 008FD00C
D 30018 C1800000
D 3001C 8F320800
D 30020 10A1FE00
D 30024 00C139D0
D 30028 04c1d004
D 3002C 07e15004
D 30030 0000f750
go 30000
go 0


Booting the emulator

You then simply run the emulator and pass it the config file.

C:\temp\>vax780 tboot.ini
VAX780 simulator V3.8-1
RP: creating new file
Overwrite last track? [N]

You'll be prompted to 'Overwrite last track'. This is SIMH asking about zeroing out the disk file. I know it's a weird question, but answer 'y' and hit enter. Then you'll get the tape prompt:

HALT instruction, PC: 00030033 (HALT)
=

We are going to run the tdcopy program. This program copies in the miniroot image onto the hard disk. Once the program is loaded simply ansewr in the following manner to select the tape drive connected on MBA1, unit 0 to the disk on MBA0 unit 0. Natrually the file number #1 (not 0) because we don't write out the tape boot blocks.

=tdcopy
tdcopy : TM03 tape-to-disk copy

tape MBA # : 1
tape unit # : 0
tape file offset : 1
tape block offset : 0

disk MBA # : 0
disk unit : 0
disk block offset : 0

no. of input blocks : 480
10240 = tape block size

normal termination
480 input blocks read
9600 output blocks written

With the hard disk prepared, we can hit CTRL+E to interrupt the emulator and exit.

=
Simulation stopped, PC: 0005017D (MFPR #20,R0)
sim> quit
Goodbye

Boot 2.

Now we are ready to boot from the hard disk, and finish extracting the files for 32v. Save the following config file as dboot.ini

dboot.ini

set tto 7b
set rq dis
set lpt dis
set rl dis
set hk dis
set rq dis
set rqb dis
set rqc dis
set rqd dis
set ry dis
set ts dis
set tq dis
set dz 7b
set dz lines=16
att dz -m 2311
set rp0 rp06
at rp0 rp06.disk
set tu0 te16
at tu0 32v.tape
D 30000 00009FDE
D 30004 D0512001
D 30008 D004A101
D 3000C 0400C113
D 30010 10008F32
D 30014 D40424C1
D 30018 8FD00CA1
D 3001C 80000000
D 30020 320800C1
D 30024 A1FE008F
D 30028 28C1D410
D 3002C 14C1D404
D 30030 C139D004
D 30034 c1d00400
D 30038 e1500404
D 3003C 00f75007
go 30000
go 2

Booting the emulator

Ok now we are ready to proceede, just run your vax780 and use the dboot.ini file.

C:\temp\>vax780.exe dboot.init

VAX780 simulator V3.8-1

HALT instruction, PC: 00030040 (HALT)

file :

Now we are at the bootloader, and we have to tell it what file to boot. Not surprisingly the unix kernel is called, unix. So simply type in unix, and hit enter.

file : unix

RESTRICTED RIGHTS
USE, DUPLICATION OR DISCLOSURE IS
SUBJECT TO RESTRICTION STATED IN YOUR
CONTRACT WITH WESTERN ELECTRIC COMPANY INC.

real mem  = 8323072
Warning: more page-frames than allocated in bit map
   Only 2048 of 16256 used. (Increase PHYSPAGES)
avail mem = 939008
#

Ok, now we are booted up into single user mode! Now we need to format the /usr partition, and restore some files. The mkfs command is run as follows:

# /etc/mkfs /dev/rp0h 322278
isize = 65496
m/n = 3 500
#

With the filesystem formatted, we can go ahead and mount it:

# /etc/mount /dev/rp0h /usr

There is no 'mt' command in 32v, so you have to 'cheat' to advance the tape. We need to advance it to the 3rd file by simply reading the tape and discarding the output to /dev/null

# cp /dev/rmt4 /dev/null
# cp /dev/rmt4 /dev/null

With the tape advanced, we can cd to the /usr partition and restore it with tar.

# cd /usr
# tar xbf 20 /dev/rmt0

With the OS installed, there is no 'shutdown' command, in the old says we ran sync a few times & pulled the plug....

# sync
# sync
# sync
# sync
#
Simulation stopped, PC: 80000798 (BLBC 8000B6FC,80000798)
sim> q
Goodbye

Running Multiuser

From here it's pretty simple to get going.

Boot up with the dboot.ini, and simply hit control + D at the # prompt, and away you go. There is no root passwod.

C:\temp\>vax780.exe dboot.ini

VAX780 simulator V3.8-1
HALT instruction, PC: 00030040 (HALT)

file : unix

RESTRICTED RIGHTS
USE, DUPLICATION OR DISCLOSURE IS
SUBJECT TO RESTRICTION STATED IN YOUR
CONTRACT WITH WESTERN ELECTRIC COMPANY INC.

real mem  = 8323072
Warning: more page-frames than allocated in bit map
   Only 2048 of 16256 used. (Increase PHYSPAGES)
avail mem = 939008
# entering rc
clearing mtab
clearing /tmp
mounting /usr on rp0h
starting update
starting cron
leaving rc

login:

For some additional information, continue with the guide, in the reconfiguration section 32v install guide