label centos40x8664
 	MENU LABEL CentOS 4.0 x86_64
 	KERNEL /pxeknife/installers/centos/4.0/x86_64/vmlinuz 
 	APPEND reiserfs jfs xfs btrfs initrd=/pxeknife/installers/centos/4.0/x86_64/initrd.img method=http://archive.kernel.org/centos-vault//4.0/os/x86_64/ ip=dhcp