Filesystem Type Size Used Avail Use% Mounted on dev devtmpfs 3.9G 0 3.9G 0% /dev run tmpfs 3.9G 1.4M 3.9G 1% /run /dev/sda1 ext4 908G 51G 811G 6% / tmpfs tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup tmpfs tmpfs 3.9G 47M 3.9G 2% /tmp tmpfs tmpfs 797M 36K 797M 1% /run/user/XXXX /dev/sdc1 udf 2.5G 2.5G 0 100% /run/media/XXXXXXXXXXXXXXXXX /dev/sr0 iso9660 489M 489M 0 100% /run/media/XXXXXXXXXXXXX