1、打开/etc/sysconfig/grub，

    # vim /etc/sysconfig/grub

    内容如下：

GRUB_TIMEOUT=5

GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"

GRUB_DEFAULT=saved

GRUB_DISABLE_SUBMENU=true

GRUB_TERMINAL_OUTPUT="console"

GRUB_CMDLINE_LINUX="vconsole.keymap=us crashkernel=auto  vconsole.font=latarcyrheb-sun16  rhgb quiet"

GRUB_DISABLE_RECOVERY="true"

2、修改上面内容中的GRUB_CMDLINE_LINUX的值，增加net.ifnames=0 biosdevname=0

    # vim /etc/sysconfig/grub

    修改后的内容如下：

GRUB_TIMEOUT=5

GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"

GRUB_DEFAULT=saved

GRUB_DISABLE_SUBMENU=true

GRUB_TERMINAL_OUTPUT="console"

GRUB_CMDLINE_LINUX="vconsole.keymap=us crashkernel=auto  vconsole.font=latarcyrheb-sun16net.ifnames=0 biosdevname=0 rhgb quiet"

GRUB_DISABLE_RECOVERY="true"

3、执行：grub2-mkconfig -o /boot/grub2/grub.cfg

    然后，重启系统，网卡名字就变成eht0了