lubuntu@lubuntu:~$ sudo cat /proc/partitions
major minor  #blocks  name

   7        0     653144 loop0
   8        0  488386584 sda
   8        1  484474880 sda1
   8        2          1 sda2
   8        5    3908608 sda5
   8       16    1966080 sdb
   8       17    1964253 sdb1
 251        0     963860 zram0
 251        1     963860 zram1