cutiyar@cutiyar-physic:~$ sudo fdisk -l

Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00086445

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1       38531   309498880   83  Linux
/dev/sda2           38532       38914     3069953    5  Extended
Partition 2 does not start on physical sector boundary.
/dev/sda5           38532       38914     3069952   82  Linux swap / Solaris
Note: sector size is 2048 (not 512)

Disk /dev/sdb: 4055 MB, 4055885824 bytes
125 heads, 62 sectors/track, 255 cylinders
Units = cylinders of 7750 * 2048 = 15872000 bytes
Sector size (logical/physical): 2048 bytes / 2048 bytes
I/O size (minimum/optimal): 2048 bytes / 2048 bytes
Disk identifier: 0x00092b90

   Device Boot      Start         End      Blocks   Id  System
cutiyar@cutiyar-physic:~$