owner@ubuntu:~$ df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       292G  3.4G  274G   2% /
udev            2.0G  4.0K  2.0G   1% /dev
tmpfs           807M  820K  807M   1% /run
none            5.0M     0  5.0M   0% /run/lock
none            2.0G  152K  2.0G   1% /run/shm
none            100M   36K  100M   1% /run/user
.host:/         879G  200G  680G  23% /mnt/hgfs
/dev/sdb1       1.8T  239G  1.4T  15% /media/owner/WD_Drive
owner@ubuntu:~$ sudo tune2fs -m 0 /dev/sdb1//media/owner/WD_Drive
tune2fs 1.42.5 (29-Jul-2012)
tune2fs: Not a directory while trying to open /dev/sdb1//media/owner/WD_Drive
Couldn't find valid filesystem superblock.
owner@ubuntu:~$