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How to enable old nic names in CentOS 7
kickstart - use pxe call:
DEFAULT co7_64 LABEL co7_64 KERNEL <path>/vmlinuz APPEND initrd=<path>/initrd.img inst.ks=http://<ip>/pxe/sys/<mac>/co7_64.cfg ip=dhcp net.ifnames=0 biosdevname=0
add: net.ifnames=0 biosdevname=0