gPartEd-Live is a Freed/Freeware minimalist partition maintenance and rescue toolset.
It can be installed on CD, USB-drive, PXE-server, or Hard-Disk; then applied to an x86_64 machine with RAM?256MB.
See gPartEd.org or [url=http://distrowatch.com/Gparted]Distrowatch (http://gparted.org)