I use Ubuntu 10.10 and PC-BSD(FreeBSD) 8.2. But I can't mount all FreeBSD file system.

I tried
sudo mkdir /mnt/pcbsd
sudo mount -t ufs -r -o ufstype=ufs2 /dev/sda3 /mnt/pcbsd

The UFS mounted, but not all slices(partitions). I installed PC-BSD by "Auto Partition", but I think the slices are composed of /, SWAP, /var and /usr.

But the /mnt/pcbsd directory have /mnt/pcbsd/var and /mnt/pcbsd/usr but these directories don't have any file or directory.