We are currently imaging our schools and would like to implement the "always show pxe menu" rather than holding down ctrl & alt. My problem is that when the computer reboots it stops at the menu and requires manual intervention and that means extra trips to the computers.

I would like to put a timeout on the pxe options menu for 30 seconds then have the computer continue the boot to the HD but I did not see a way to do that in settings.txt in /srv/tftp .

Does anyone have any suggestions?
Thank you