Install vncserver and run it to set up password.
Create file as /etc/init.d/vncserver (DONT FORGET TO MODIFY PARAMS LIKE USER).
#!/bin/sh -e
### BEGIN INIT INFO
# Provides: vncserver
# Required-Start: networking
# Default-Start: S
# Default-Stop: 0 6
### END INIT INFO
PATH="$PATH:/usr/X11R6/bin/"
# The Username:Group that will run VNC
export USER="MYUSER"
#${RUNAS}
# The display that VNC will use
DISPLAY="1"
# Color depth (between 8 and 32)
DEPTH="16"
# The Desktop geometry to use.
#GEOMETRY="
#GEOMETRY="800x600"
GEOMETRY="1024x768"
#GEOMETRY="1280x1024"
# The name that the VNC Desktop will have.
NAME="my-vnc-server"
OPTIONS="-name ${NAME} -depth ${DEPTH} -geometry ${GEOMETRY} :${DISPLAY}"
. /lib/lsb/init-functions
case "$1" in
start)
log_action_begin_msg "Starting vncserver for user '${USER}' on localhost:${DISPLAY}"
su ${USER} -c "/usr/bin/vncserver ${OPTIONS}"
;;
stop)
log_action_begin_msg "Stoping vncserver for user '${USER}' on localhost:${DISPLAY}"
su ${USER} -c "/usr/bin/vncserver -kill :${DISPLAY}"
;;
restart)
$0 stop
$0 start
;;
esac
exit 0
sudo chmod +x /etc/init.d/vncserver
sudo update-rc.d vncserver defaults
http://superuser.com/questions/147109/automatically-start-vnc-server-on-startup