ubuntu@ubuntu:~$ sudo fdisk -l

Disk /dev/sda: 640.1 GB, 640135028736 bytes
255 heads, 63 sectors/track, 77825 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0b2f2600

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1       74436   597907138+   7  HPFS/NTFS
/dev/sda2           74437       77825    27222142+   5  Extended
/dev/sda5           74437       77679    26049366   83  Linux
/dev/sda6           77680       77825     1172713+  82  Linux swap / Solaris

Disk /dev/sdb: 81.9 GB, 81964302336 bytes
255 heads, 63 sectors/track, 9964 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x299f299e

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1        9964    80035798+   7  HPFS/NTFS