centos7 kickstart file bridge bonded interface

I want to bond my four network interfaces: em1/em2/em3/em4 to bond0, and make a br0 interface with bond0. I do this in the centos7 installation steps, and generate a kicistart file as below network --bootproto=dhcp --device=br0 --ipv6=auto --activate --bridgeslaves=bond0 --bridgeopts=priority=32768,stp=yes But when I install another host using this kickstart file, the network configure can not made correctly, did any one meet this situation before?