Filesystem Type Size Used Avail Use% Mounted on udev devtmpfs 3.9G 0 3.9G 0% /dev tmpfs tmpfs 794M 1.2M 793M 1% /run /dev/sdb1 ext4 44G 14G 28G 34% / tmpfs tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs tmpfs 5.0M 0 5.0M 0% /run/lock /dev/sda1 ext4 87G 56M 83G 1% /backup /dev/sda2 ext4 830G 124G 664G 16% /home tmpfs tmpfs 794M 44K 794M 1% /run/user/XXXX