$ lsblk
NAME    MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda       8:0    0   30G  0 disk 
├─sda1    8:1    0 29.9G  0 part /
├─sda14   8:14   0    4M  0 part 
└─sda15   8:15   0  106M  0 part /boot/efi
sdb       8:16   0    7G  0 disk 
└─sdb1    8:17   0    7G  0 part /mnt
sdc       8:32   0  100G  0 disk 
sdd       8:48   0  100G  0 disk
