grub no FreeBSD 5.2.1

Olá a todos,

Sou iniciante no FreeBSD e estou enfrentando uns problemas para fazer multiboot com o Grub. Meu arquivo /boot/grub/menu.1st esta da seguinte forma:

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# 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 (hd0,1)
# kernel /boot/vmlinuz-version ro root=/dev/hda2
# initrd /boot/initrd-version.img
#boot=/dev/hda
default=2
timeout=10
splashimage=(hd0,1)/boot/grub/splash.xpm.gz
password --md5 $1$5WtTbn9/$WR1bLncGDqmi0q15neaNU.
title Red Hat Linux (2.4.20-8BOOT)
root (hd0,1)
kernel /boot/vmlinuz-2.4.20-8BOOT ro root=LABEL=/ hdb=ide-scsi
initrd /boot/initrd-2.4.20-8BOOT.img
title Red Hat Linux (2.4.20-8)
root (hd0,1)
kernel /boot/vmlinuz-2.4.20-8 ro root=LABEL=/ hdb=ide-scsi
initrd /boot/initrd-2.4.20-8.img
title Windows 2000
rootnoverify (hd0,0)
chainloader +1
title FreeBSD 5.2.1
root (hd0,4,a)
kernel /boot/loader

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Só q não estou conseguindo fazer o boot. Acho q o problema é com o sistema de arquivos ufs2 do FreeBSD.

Como faço para resolver esse problema?

Anderson