/dev/mapper:
total 0
crw------- 1 root root 10, 236 mei 13 07:35 control
lrwxrwxrwx 1 root root       7 mei 13 07:35 ubuntu--vg-root -> ../dm-0
lrwxrwxrwx 1 root root       7 mei 13 07:35 ubuntu--vg-swap_1 -> ../dm-1