In order to make hal and dbus start at boot time you have to execute the following commands as root:

chmod +x /etc/rc.d/rc.messagebus
chmod +x /etc/rc.d/rc.hal

and then you have to add the following lines to /etc/rc.d/rc.local:

if test -x rc.messagebus
then
	/etc/rc.d/rc.messagebus start
fi

if test -x rc.hal
then
	/etc/rc.d/rc.hal start
fi