安装系统后默认的网卡名称为 enpXX ，修改为熟悉的eth0

1 vi /etc/default/grub

GRUB_TIMEOUT=5

GRUB_DEFAULT=saved

GRUB_DISABLE_SUBMENU=true

GRUB_TERMINAL_OUTPUT="console"

GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap crashkernel=auto rhgb quiet net.ifnames=0 biosdevname=0"

GRUB_DISABLE_RECOVERY="true"

追加 net.ifnames=0 biosdevname=0

2 mv /etc/sysconfig/network-scripts/ifcfg-enpXX /etc/sysconfig/network-scripts/ifcfg-eth0

  及文件里面的 name 、device属性的名称为eth0 

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

4 reboot

5 ip a 查看