major minor  #blocks  name

 252        0   15728640 vda
 252        1     512000 vda1
 252        2   15215616 vda2
 252       16   52428800 vdb
 252       17   52427776 vdb1
  11        0    1048575 sr0
 253        0   13639680 dm-0
 253        1    1572864 dm-1
