ubuntu@ubuntu:~$ sudo fdisk -lu

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: 0x5dd7c42c

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048    31459327    15728640    7  HPFS/NTFS/exFAT
/dev/sda2        31459328    31664127      102400    7  HPFS/NTFS/exFAT
/dev/sda3        31664128   694585343   331460608    7  HPFS/NTFS/exFAT
/dev/sda4       694586340  1250274689   277844175    f  W95 Ext'd (LBA)
/dev/sda5       694587392  1226446847   265929728   83  Linux
/dev/sda6      1226448896  1238353903     5952504   82  Linux swap / Solaris

Disk /dev/sdb: 8053 MB, 8053063680 bytes
255 heads, 63 sectors/track, 979 cylinders, total 15728640 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/sdb1   *        2048    15728639     7863296    b  W95 FAT32