Filesystem     1K-blocks    Used Available Use% Mounted on
udev             1473436       0   1473436   0% /dev
tmpfs             296988    5216    291772   2% /run
/dev/sdc1        4016416 2914096   1102320  73% /cdrom
/dev/loop0       1067008 1067008         0 100% /rofs
/cow             1523568 1019844    424980  71% /
tmpfs            1484924     444   1484480   1% /dev/shm
tmpfs               5120       4      5116   1% /run/lock
tmpfs            1484924       0   1484924   0% /sys/fs/cgroup
tmpfs            1484924     864   1484060   1% /tmp
tmpfs             296988      48    296940   1% /run/user/999
/dev/loop1       1523568 1019844    424980  71% /media/ubuntu-mate/1c42606c-db33-614b-9de7-4b2fd2d1bbf4