root@ubuntu:~/Desktop# lsblk

NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 232.9G  0 disk
├─sda1   8:1    0   100M  0 part
├─sda2   8:2    0 232.4G  0 part
└─sda3   8:3    0   449M  0 part
sdb      8:16   1  29.8G  0 disk
└─sdb1   8:17   1  29.8G  0 part /cdrom
sr0     11:0    1  1024M  0 rom
loop0    7:0    0   1.1G  1 loop /rofs