GParted (GNOME Partition Editor) is a free partition editor for graphically managing disk partitions. It is included in some flavors of Ubuntu by default and is available in repositories.
GNOME Partition Editor is a graphical tool for creating, reorganizing, and deleting disk partitions. It uses libparted from the parted project to detect and manipulate partition tables. It must be run with root privileges.
Features:
- Create partition tables (e.g. MSDOS, GPT)
- Create, delete, copy, resize, move, check, set new UUID, or label partitions
- Manipulate btrfs, ext2/3/4, f2fs, FAT16/32, hfs/hfs+, linux-swap, lvm2 pv, nilfs2, NTFS, reiserfs/4, ufs, and xfs file systems
- Enable and disable partition flags (e.g., boot, hidden)
- Align partitions to mebibyte (MiB) or cylinder boundaries
- Attempt data rescue from lost partitions
- Supports hardware RAID, motherboard BIOS RAID, Linux software RAID
- Supports all sector sizes (e.g. 512, 1024, 2048, 4096 byte sectors)
GParted is distributed under the GNU General Public License (GPL) version 2
Source/website: http://sourceforge.net/projects/gparted/