# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/mmcblk0p2 during installation
UUID=d6102d3d-4e86-4e7f-a81d-68ac656650de /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/mmcblk0p1 during installation
UUID=2354-BC1D  /boot/efi       vfat    umask=0077      0       1
# swap was on /dev/mmcblk0p3 during installation
UUID=521de66a-bdba-4abf-948f-d639b5cc6a5e none            swap    sw              0       0

THIS IS WHAT I ADDED YESTERDAY 

/dev/sda1 /media/hdd ext3 defaults 0 2