xCAT supports a variety of deployment mechanisms. A summary matrix that applies to xCAT 2.0 RC2:
RHEL5/CentOS5
Fedora 8
Fedora 9
SLES10
RHEL4/CentOS4
Disk Install
kickstart
kicksstart
kickstart
autoyast
kickstart
Stateful Diskless
kickstart
kickstart
kickstart
autoyast
Not supported
Stateless Diskless
Implemented
Implemented
90% Implemented (some upstart-related tweaks needed)
Implemented (squashfs/nfs not tested)
Not yet implemented (Requires geninitrd modifications for RHEL4 era utilities)
Note that currently imaging based solutions (systemimage/partimage) are not yet conveniently wrapped.