Disk /dev/sda: 640.1 GB, 640135028736 bytes
255 heads, 63 sectors/track, 77825 cylinders, total 1250263728 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: 0x0002c1a5

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048  1242050559   621024256   83  Linux
/dev/sda2      1242052606  1250263039     4105217    5  Extended
/dev/sda5      1242052608  1250263039     4105216   82  Linux swap / Solaris