major minor  #blocks  name

  43        0    4194304 nbd0
  43       32    1024000 nbd1
   8        0  586061784 sda
   8        1     291840 sda1
   8        2     292864 sda2
   8        3  585475072 sda3
 253        0   19529728 dm-0
 253        1    1949696 dm-1