# vi /etc/default/grub
初始值
GRUB_CMDLINE_LINUX="crashkernel=auto resume=/dev/mapper/rl-swap rd.lvm.lv=rl/root rd.lvm.lv=rl/swap"
修改为
GRUB_CMDLINE_LINUX="crashkernel=auto resume=/dev/mapper/rl-swap rd.lvm.lv=rl/root rd.lvm.lv=rl/swap net.ifnames=0 biosdevname=0"
添加 net.ifnames=0 biosdevname=0

# grub2-mkconfig  -o /boot/grub2/grub.cfg

# mv /etc/sysconfig/network-scripts/ifcfg-{ens33,eth0}
# cat >  /etc/sysconfig/network-scripts/ifcfg-eth0 <<EOF
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
NAME=eth0
DEVICE=eth0
ONBOOT=yes
IPADDR=192.168.31.168
NETMASK=255.255.255.0
GATEWAY=192.168.31.254
DNS1=114.114.114.114
DNS1=8.8.8.8
EOF

4.重启

# reboot