DRBL (Diskless Remote Boot in Linux) provides a diskless or systemless environment for client machines. It works on Debian, Ubuntu, Mandriva, Red Hat, Fedora, CentOS and OpenSuSE. DRBL uses distributed hardware resources and makes it possible for clients to fully access local hardware. It also includes Clonezilla, a partition and disk cloning utility similar to Symantec Ghost(TM) or True Image(TM).
For more details, check
1. http://drbl.sourceforge.net (English)
2. http://drbl.nchc.org.tw (Chinese Big5 - Taiwan)