major minor  #blocks  name

 252        0   15728640 vda
 252        1    1048576 vda1
 252        2   11533312 vda2
 252       16   47185920 vdb
 252       17   44039168 vdb1
  11        0    1048575 sr0
 253        0   10268672 dm-0
 253        1    1261568 dm-1
