LILO
From Linux 101, The beginner's guide to all things Linux.
LILO - The LInux LOader
LILO was the bootloader used by nearly every Linux distribution until recent years. It is still the default bootloader for some distributions and is useable with the rest, but GRUB has replaced it in many installations due to its advanced features.
LILO can boot other operating systems besides Linux. Some basic security is available, but the passwords are stored unencrypted in the configuration file. It is also important to remember that LILO must be reinstalled using the lilo command whenever the configuration file is changed.
The configuration file for LILO is stored in /etc/lilo.conf by default.
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