QEMU running on 64bit host is still not available yet, although it can emulate 64bit kernel. Other than UML, is there any other alternatives that I can try to use, to trace through the early booting up scenario in 64bit Linux Kernel? Thank you for the reply. -- Regards, Peter Teoh -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ