Someone asked about LilLo boot timeouts...

michaelsanford · Feb 8, 2005

Or maybe it was GRUB. In any event, if it was LILO, you can modify /etc/lilo.conf with
prompt
timeout=50

(5 seconds)

Viro · Feb 8, 2005

If it is grub, you can modify the /boot/grub/grub.conf file.