3BSD is the first version of BSD which is ported to VAX.

step 1 and 2

Follow the install procedure documented in setup text. Safely skipping formatting and verifying the disk drive, we now copy the root disk image to the drive. A new drive file will be created. You will be asked a rather vague question: `Overwrite last track?'. Answer `y' to create bad block tables. After creating the root filesystem, you can directly boot it.

% vax780 tboot.init↓

VAX780 simulator V3.7-0
RP: creating new file
Overwrite last track? [N] y↓

HALT instruction, PC: 0005002A (HALT)
=mkfs↓
file sys size: 7942↓
file system: hp(0,0)↓
isize = 5072
m/n = 3 500
=restor↓
Tape? ht(1,1)↓
Disk? hp(0,0)↓
Last chance before scribbling on disk.
End of tape
=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!!!
# /etc/mkfs /dev/rrp0g 145673↓
isize = 65488
m/n = 3 500
# /etc/mount /dev/rp0g /usr↓
# cd /usr↓
# cp /dev/rmt5 /dev/null↓
# cp /dev/rmt5 /dev/null↓
# tar xbf 20 /dev/rmt1↓
# cd /↓
# /etc/umount /dev/rp0g↓
# sync↓
# sync↓
# sync↓
# ctrl-E
Simulation stopped, PC: 8000085F (BLBC 80010FA0,8000085F)
sim>quit↓
Goodbye

step 3

Boot from the hard disk by using `dboot.init'.
% vax780 dboot.init↓

VAX780 simulator V3.7-0

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 you can follow the `Taking the system up and down' Section of setup document. Be sure to change root password or you cannot login under multi-user mode.