init script

I'm setting up a print server which is headless, where the only login is ssh from a desktop. When I boot this box, I have no way of knowing the soonest I can log in. I downloaded a "beep" program from the internet, and I need to know the point I can insert a script to ring the internal speaker a few times. It would have to be right at the end of the boot process, before mingetty is called. -- It will be advantageous to cross the great stream ... the Dragon is on the wing in the Sky ... the Great Man rouses himself to his Work.