sudo fdisk -l

ubuntu@ubuntu:~$ sudo fdisk -l

Disk /dev/sdb: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders, total 488397168 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: 0x0003b9e2

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *        2048      206847      102400    7  HPFS/NTFS/exFAT
/dev/sdb3       273330176   480008191   103339008   83  Linux
/dev/sdb4       480008192   488396799     4194304   82  Linux swap / Solaris

Disk /dev/sda: 3965 MB, 3965190144 bytes
49 heads, 48 sectors/track, 3292 cylinders, total 7744512 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: 0x00000000

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        8192     7744511     3868160    b  W95 FAT32