Those are cell blades. They don't have a graphic chip and like most IBM servers, the kernels don't actually need VT support since they don't actually need any graphic card. They are generally used via serial or HV console.
-- no console started on cell machine https://launchpad.net/bugs/72832 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
