I always seem to forget this command. The following mounts the UFS2 FreeBSD filesystem to /mnt/fbsd directory on a Linux box. Notice the read-only permission. Unfortunately, (as of this writing) Linux does not have write support for UFS2. Please let me know if I am in error.

Change /dev/sda3 to your disk device!

1. # mkdir /mnt/fbsd
2. # mount -t ufs -o ro,ufstype=ufs2 /dev/sda3 /mnt/fbsd