Oracle Solaris ZFS Administration Guide

Legacy Mount Points

You can manage ZFS file systems with legacy tools by setting the mountpoint property to legacy. Legacy file systems must be managed through the mount and umount commands and the /etc/vfstab file. ZFS does not automatically mount legacy file systems at boot time, and the ZFS mount and umount commands do not operate on datasets of this type. The following examples show how to set up and manage a ZFS dataset in legacy mode:

# zfs set mountpoint=legacy tank/home/eschrock
# mount -F zfs tank/home/eschrock /mnt

To automatically mount a legacy file system at boot time, you must add an entry to the /etc/vfstab file. The following example shows what the entry in the /etc/vfstab file might look like:

#device         device        mount           FS      fsck    mount   mount
#to mount       to fsck       point           type    pass    at boot options

tank/home/eschrock -		/mnt		   zfs		-		yes		-	

The device to fsck and fsck pass entries are set to - because the fsck command is not applicable to ZFS file systems. For more information about ZFS data integrity, see Transactional Semantics.