CentOS7下修改默认网卡名为eth0的方法

1.修改网卡配置文件中的 DEVICE=参数的，关于eth0
[root@ansheng ~ ]# cd /etc/sysconfig/network-scripts/
[root@ansheng network-scripts_ # vi ifcfg-eno16777728
TYPE=Ethernet
BOOTPROTO=dhcp
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=eno16777728
UUID=8a3eade8-005c-46df-81f2-6e2598457bac
#DEVICE=eno16777728
DEVICE=eth0
ONBOOT=yes

2.网卡配置文件名称改为ifcfg-eth0
[root@ansheng network-scripts]# mv ifcfg-eno16777728 ifcfg-eth0

3.因CentOS7采用grub2引导,还需要对grub2进行修改,编辑/etc/default/grub配置文件,在GRUB_CMDLINE_LINUX这个参数后面加入net.ifnames=0 biosdevname=0
[root@ansheng network-scripts]# vi /etc/default/grub
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="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet net.ifnames=0 biosdevname=0"
GRUB_DISABLE_RECOVERY="true"

4.用grub2-mkconfig命令重新生成GRUB配置并更新内核
[root@ansheng network-scripts]# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-327.el7.x86_ _64
Found initrd image: /boot/initramfs-3.10.0-327.el7 .x86_ _64.img
Found linux image; /boot/vmlinuz-0-rescue-4dd6b54f74c94bff9e92c61d669fc195
Found initrd image: /boot/initramfs-0-rescue-4dd6b54f74c94bff9e92c61d669fc195.img
done

5.重启系统