sudo fdisk -l /dev/sdf

Disk /dev/sdf: 32.1 GB, 32078036992 bytes
64 heads, 32 sectors/track, 30592 cylinders, total 62652416 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

   Device Boot      Start         End      Blocks   Id  System