Newbie: Before installing

Method 4Corrected on Aug. 22. 2012--TodayThanks a seidler2547. Efectivily is posible to use sda3 partition on OMV only formating it.--We start from an OMV system running and installed on a hard drive that it could be /dev/sda and we want to use part of it as a aditional data storage unit for the system.We stop orderly OMV, and with "gparted live" CD or USB (@ http://www.sourceforge.net):1) reduce the size of the partition /dev/sda1 (system partition) to a reasonable size, eg 8 GiB2) extend the size of the primary partition /dev/sda2 to full disk size.3) move the extended partition for swap, /dev/sda5 contained in the primary /dev/sda2, from the end, to the beginning of the /dev/sda24) reduce the size of the primary partition /dev/sda2 just to the size of the extended partition /dev/sda55) create a new partition with free disk size /dev/sda3--Today6) format /dev/sda3 with the type ext4---We stop orderly gparted.