label centos7x8664
 	MENU LABEL CentOS 7 x86_64
 	KERNEL /pxeknife/installers/centos/7/x86_64/vmlinuz 
 	APPEND reiserfs jfs xfs btrfs initrd=/pxeknife/installers/centos/7/x86_64/initrd.img method=http://centos.mirror.constant.com//7/os/x86_64/ ip=dhcp