ubuntu@ubuntu:~$ ls -Faslh /dev/mapper/
total 0
0 drwxr-xr-x  2 root root      100 Jun  4 12:33 ./
0 drwxr-xr-x 14 root root     4.0K Jun  4 12:50 ../
0 brw-rw----  1 root disk 252,   0 Jun  4 12:33 0QEMU    QEMU HARDDISK   AAAAAAA
0 brw-rw----  1 root disk 252,   0 Jun  4 12:33 0QEMU\x20\x20\x20\x20QEMU\x20HARDDISK\x20\x20\x20AAAAAAA
0 crw-------  1 root root  10, 236 Jun  4 12:27 control