FreeBSD and Grub

[Charlie Schluting]

On my laptop, I have one hard drive.
Slice 4 holds my FreeBSD partition.
I used the defaults during the install of 5.2, so /boot lives on slice 
4, part a.

I have Grub configured as such:

root(hd0,3,a)
kernel /boot/loader

Upon boot attempt, I see:

Filesystem type unknown, partition type 0xa5
Error 17: Cannot mount selected partition.

Any ideas?

Thanks :)
Charlie