$sudo fdisk /dev/hda

The number of cylinders for this disk is set to 4865.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)
Command (m for help): p
Disk /dev/hda: 40.0 GB, 40020664320 bytes
255 heads, 63 sectors/track, 4865 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/hda1   *           1         127     1020096   83  Linux
/dev/hda2             128         764     5116702+  83  Linux
/dev/hda3             765        1401     5116702+  83  Linux
/dev/hda4            1402        4865    27824580    5  Extended
/dev/hda5            1402        1656     2048256   83  Linux
/dev/hda6            1657        1911     2048256   83  Linux
/dev/hda7            1912        2038     1020096   82  Linux swap
Command (m for help): n
First cylinder (2039-4865, default 2039):
Using default value 2039
Last cylinder or +size or +sizeM or +sizeK (2039-4865, default 4865): +5120M
Command (m for help): p
Disk /dev/hda: 40.0 GB, 40020664320 bytes
255 heads, 63 sectors/track, 4865 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/hda1   *           1         127     1020096   83  Linux
/dev/hda2             128         764     5116702+  83  Linux
/dev/hda3             765        1401     5116702+  83  Linux
/dev/hda4            1402        4865    27824580    5  Extended
/dev/hda5            1402        1656     2048256   83  Linux
/dev/hda6            1657        1911     2048256   83  Linux
/dev/hda7            1912        2038     1020096   82  Linux swap
/dev/hda8            2039        2661     5004216   83  Linux
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table.
The new table will be used at the next reboot.
Syncing disks.