major minor  #blocks  name

  43        0    1024000 nbd0
  43       32    4194304 nbd1
   8        0  976762584 sda
   8        1     291840 sda1
   8        2     976896 sda2
   8        3  975492096 sda3
  11        0    1048575 sr0
 252        0   19529728 dm-0
 252        1    1949696 dm-1