Installing 3 BSD on SIMH
These notes are 100% derived from the work http://zazie.tom-yam.or.jp/starunix/3bsd/3bsd.html
You may also find the guide Setting up the Third Berkeley Software Tape to be of some help as well.
Requirements
- You'll need the vax 11/780 emulator out of SIMH.
- Next you will need the tape image. 3bsd.tap.bz2
- A copy of bzip2 to decompress the tape image.
- a UUDECODE program for the bootsector.
Boot 1
Copy the following into tboot.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 lines=8 set rp0 rp06 at rp0 rp06.disk set tu0 te16 at tu0 3bsd.tape D 50000 20009FDE D 50004 D0512001 D 50008 3204A101 D 5000C C113C08F D 50010 A1D40424 D 50014 008FD00C D 50018 C1800000 D 5001C 8F320800 D 50020 10A1FE00 D 50024 00C139D0 D 50028 04c1d004 D 5002C 07e15004 D 50030 0000f750 go 50000 go 0
Then go ahead and run the emulator like this:
vax780 tboot.ini VAX780 simulator V3.8-1 RP: creating new file Overwrite last track? [N] y
You will be prompted to 'overwrite last track', type in 'y' and hit enter. Then you'll get the = prompt. Run the 'mkfs' program as follows:
=mkfs file sys size: 7942 file system: hp(0,0) isize = 5072 m/n = 3 500
The 'root' slice will now be formatted.
Now we can run the restor program as follows:
=restor Tape? ht(1,1) Disk? hp(0,0) Last chance before scribbling on disk. y End of tape
Now we can go ahead and boot the system. Run the boot command from the = prompt, then you'll have to specify where & what to boot with hp(0,0)vmunix.
=boot Boot : hp(0,0)vmunix 61856+61008+70120 start 0x4B4 VM/UNIX (Berkeley Version 2.7) 2/10/80 real mem = 8323072 avail mem = 8062976 ERASE IS CONTROL-H!!!
Now we are going to format the /usr partition:
# /etc/mkfs /dev/rrp0g 145673 isize = 65488 m/n = 3 500
Let's now mount the /usr partition and restore its contents with tar. Notice how we advance the tape, by cp'ing the files to /dev/null. There is no mt command in 3 BSD.
# /etc/mount /dev/rp0g /usr # cd /usr # cp /dev/rmt5 /dev/null # cp /dev/rmt5 /dev/null # tar xbf 20 /dev/rmt1
With the restore done, we unmount the /usr partition, and run sync several times..
# cd / # /etc/umount /dev/rp0g # sync # sync # sync # sync #
Then finally we interrupt SIMH with CTRL+E then 'q' to quit.
Simulation stopped, PC: 8000085F (BLBC 80010FA0,8000085F) sim> q Goodbye
We are now done with the installation/restore of 3 BSD!
Boot 2
Save the following file as 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 lines=8 set rp0 rp06 at rp0 rp06.disk set tu0 te16 load -o boot 0 go 2
You will also need the 'boot' programme. Right now I'm saving it uuencoded here: 3 BSD boot.
with all the parts in place you can run the emulator as follows:
VAX780.EXE dboot.init VAX780 simulator V3.8-1 Boot :
Then you just have to tell the boot programme where to find the kernel.
Typing in "hp(0,0)vmunix" will boot the system.
Boot : hp(0,0)vmunix 61856+61008+70120 start 0x4B4 VM/UNIX (Berkeley Version 2.7) 2/10/80 real mem = 8323072 avail mem = 8062976 ERASE IS CONTROL-H!!!
On your first boot, you will NEED to change the root password.
# passwd root New password: Retype new password: #
Next you can just hit CTRL+D to bring the system all the way up to multi user.
# Sun Oct 26 03:19:54 PST 1980 entering rc clearing mtab mounting /usr on /dev/rp0g preserving Ex temps and clearing /tmp starting update starting cron leaving rc Virtual VAX/UNIX (Ernie Co-vax) login:
Logon with your new password, and you should be good to go!
Virtual VAX/UNIX (Ernie Co-vax) login: root Password: Welcome to Virtual Vax/UNIX. ERASE IS CONTROL-H!!! #
