ubuntu@ubuntu:~$ sudo fdisk -l
Disk /dev/sda: 40.0 GB, 40007761920 bytes
255 heads, 63 sectors/track, 4864 cylinders, total 78140160 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: 0x671e671e
Device Boot Start End Blocks Id System
/dev/sda1 * 63 15101099 7550518+ 7 HPFS/NTFS/exFAT
/dev/sda2 15101100 78140159 31519530 5 Extended
/dev/sda5 15101163 78140159 31519498+ 7 HPFS/NTFS/exFAT
Disk /dev/sdb: 1027 MB, 1027342336 bytes
32 heads, 62 sectors/track, 1011 cylinders, total 2006528 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
Disk /dev/sdb doesn't contain a valid partition table