sudo fdisk -l /dev/sda

im@im-desktop:~$ sudo fdisk -l /dev/sda
[sudo] password for im:
GNU Fdisk 1.2.4
Copyright (C) 1998 - 2006 Free Software Foundation, Inc.
This program is free software, covered by the GNU General Public License.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.


Disk /dev/sda: 81 GB, 81956689920 bytes
255 heads, 63 sectors/track, 9964 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1           1        8001    7  HPFS/NTFS
/dev/sda2               2        9638    77401170    f  Extended LBA
/dev/sda5               2        1276    10233405    7  HPFS/NTFS
Warning: Partition 5 does not end on cylinder boundary.
/dev/sda6            1277        2679    11261565    7  HPFS/NTFS
Warning: Partition 6 does not end on cylinder boundary.
/dev/sda7            2680        9638    55890135    7  HPFS/NTFS
Warning: Partition 7 does not end on cylinder boundary.