求助 freebsd安装问题？

本人一个硬盘安装了winxp，win2003，redhat。在另一硬盘安装了freebsd。请教如何在redhat中用grub设置引导freebsd？本人试过置顶贴的方法好像不行。:(

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You do not have a /boot partition. This means that
# all kernel and initrd paths are relative to /, eg.
# root (hd0,8)
# kernel /boot/vmlinuz-version ro root=/dev/hda9
# initrd /boot/initrd-version.img
#boot=/dev/hda
default=1
timeout=10
splashimage=(hd0,8)/boot/grub/splash.xpm.gz
title Red Hat Linux (2.4.20-8)
root (hd0,8)
kernel /boot/vmlinuz-2.4.20-8 ro root=LABEL=/
initrd /boot/initrd-2.4.20-8.img
title DOS
rootnoverify (hd0,0)
chainloader +1
title FreeBSD
rootnoverify (hd2,0)
chainloader +1

以上是本人的grub配置

http://www.linuxsir.org/bbs/showthre...highlight=grub