Filesystem     1K-blocks    Used Available Use% Mounted on
udev             4019396       0   4019396   0% /dev
tmpfs             808116    1732    806384   1% /run
/dev/sdb         1907568 1907568         0 100% /cdrom
/dev/loop0       1820800 1820800         0 100% /rofs
/cow             4040564  818680   3221884  21% /
tmpfs            4040564       0   4040564   0% /dev/shm
tmpfs               5120       8      5112   1% /run/lock
tmpfs            4040564       0   4040564   0% /sys/fs/cgroup
tmpfs            4040564    1732   4038832   1% /tmp
tmpfs             808112      72    808040   1% /run/user/999
/dev/loop1         89088   89088         0 100% /snap/core/4917
/dev/loop2         35584   35584         0 100% /snap/gtk-common-themes/319
/dev/loop3        144384  144384         0 100% /snap/gnome-3-26-1604/70
/dev/loop4          2432    2432         0 100% /snap/gnome-calculator/180
/dev/loop5         13312   13312         0 100% /snap/gnome-characters/103
/dev/loop6         14848   14848         0 100% /snap/gnome-logs/37
/dev/loop7          3840    3840         0 100% /snap/gnome-system-monitor/51
/dev/sda1      479765160 6069436 449255304   2% /target