Your final lilo.conf file will look something like this:

boot=/dev/hda  
delay=20  
vga=normal  
root=/dev/hda1  
read-only  
  
image=/vmlinuz2  
label=linux  
 
image=/vmlinuz 
label=oldlinux 

After doing all this, you'll need to run "lilo" as root. This is very important! If you don't do this, the booting process won't work. Running "lilo" will give it an opportunity to update its boot map.