# fdisk -lu

Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders, total 625142448 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: 0xf1f75308

  Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      206847      102400    7  HPFS/NTFS
Partition 1 does not end on cylinder boundary.
/dev/sda2          206848    30722047    15257600    7  HPFS/NTFS
/dev/sda3       172908544   254828543    40960000   83  Linux