@tom-elliott
Filesystem Size Used Avail Use% Mounted on
udev 3.9G 0 3.9G 0% /dev
tmpfs 787M 9.3M 778M 2% /run
/dev/sda1 451G 5.7G 423G 2% /
tmpfs 3.9G 212K 3.9G 1% /dev/shm
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
tmpfs 787M 60K 787M 1% /run/user/1000
/dev/sdb1 1.8T 614G 1.2T 36% /media/fog/d40b9b49-226e-4e64-b365-0b7b71d9ed3b
i used this and it worked: https://wiki.fogproject.org/wiki/index.php?title=Moving_your_images_directory/Adding_Storage_to_the_Images_directory
Thanks!