major minor  #blocks  name

   8        0  156290904 sda
   8        1   23044683 sda1
   8        2          1 sda2
   8        5    4121600 sda5
   8        6  129122304 sda6
   8       16  488386584 sdb
   8       17     204800 sdb1
   8       18   26214400 sdb2
   8       19  461966343 sdb3