arun@ubuntu:~$ sudo fdisk -l
[sudo] password for arun:

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x0dd0b171

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      409599      203776    7  HPFS/NTFS/exFAT
/dev/sda2          409600   492355583   245972992    7  HPFS/NTFS/exFAT
/dev/sda3       934477824   976560127    21041152    7  HPFS/NTFS/exFAT
/dev/sda4       976560128   976771071      105472    c  W95 FAT32 (LBA)