ubuntu@ubuntu:~$ sudo fdisk -l

Disk /dev/sda: 640.1 GB, 640135028736 bytes
255 heads, 63 sectors/track, 77825 cylinders, total 1250263728 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: 0x3f938c99

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      819199      408576   27  Hidden NTFS WinRE
/dev/sda2          819200   624617471   311899136    7  HPFS/NTFS/exFAT
/dev/sda3       624617472  1250263039   312822784    7  HPFS/NTFS/exFAT

Disk /dev/sdb: 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 / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0004bde1

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *        2048      499711      248832   83  Linux
/dev/sdb2          501758   976771071   488134657    5  Extended
/dev/sdb5          501760   976771071   488134656   8e  Linux LVM
ubuntu@ubuntu:~$