If you have the CD-ROMs, most Linux distros offer a boot prompt.
At the boot prompt type.

boot: linux root=/dev/hdxy

where 'x' is the hard drive where the root directory is located.
a=first hard drive
b=second hard drive, etc

where 'y' is the partition where the root directory is located.
1-4=your primary disk partitions.
5 and up are your logical partitions.

example.

boot: linux root=/dev/hda2

In this example the root directory is on the first hard drive second partition.

boot: linux root=/dev/hdb3

In this example the root directory is on the second hard drive in the third primary partition.


Once linux is booted assuming you want to use lilo as your boot loader. You can configure /etc/lilo.conf and when completed execute the "lilo" command to install.

see http://www.control-escape.com/lilo-cfg.html for more information on configuring lilo.