major minor  #blocks  name

   8        0   31266648 sda
   8        1     262144 sda1
   8        2     131072 sda2
   8        3   30872391 sda3
   8       16   31266648 sdb
   8       17    7823576 sdb1
   7        0     358980 loop0
   7        1    1048576 loop1
