This chapter is from the book
Booting FreeBSD from LILO
If you are running Linux and want to boot FreeBSD from Linux's LILO, it is fairly easy to do.
In Linux, edit the file /etc/lilo.conf, and add the following lines:
other=/dev/hda2 table=/dev/hda label=FreeBSD
You will need to change the other line to reflect whatever device Linux recognizes your FreeBSD drive as.
After you have changed the configuration file, you will need to reinstall LILO by typing lilo as the root user.