fdisk -l

sudo fdisk -l

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: 0x0000dc2d

   Device Boot      Start         End      Blocks   Id  System
/dev/sda2   *        2048   625141759   312569856    5  Extended
/dev/sda5            4096   616839167   308417536   83  Linux
/dev/sda6       616841216   625141759     4150272   82  Linux swap / Solaris