Centos7.x 更改网卡名称eth0

1、修改网卡信息
cd /etc/sysconfig/network-scripts/
重命名网卡名称
mv ifcfg-eno16777728 ifcfg-eth0
编辑网卡信息
vim ifcfg-eth0 
TYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=no
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
TYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=no
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=eth0 #name修改为eth0
DEVICE=eth0
ONBOOT=yes
IPADDR=172.16.8.254
PREFIX=24
GATEWAY=172.16.8.1
DNS1=114.114.114.114

2、修改grub文件

编辑内核信息,添加net.ifnames=0 biosdevname=0字段的
vim /etc/sysconfig/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="crashkernel=auto rd.lvm.lv=devops/root rd.lvm.lv=devops/swap rhgb net.ifnames=0 biosdevname=0 quiet"
GRUB_DISABLE_RECOVERY="true"

运行命令grub2-mkconfig -o /boot/grub2/grub.cfg 来重新生成GRUB配置并更新内核参数                             
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-cd4cedc54acd4c289771cd4af02255e8
Found initrd image: /boot/initramfs-0-rescue-cd4cedc54acd4c289771cd4af02255e8.img
done

3、重启系统及验证

必须重启系统生效
reboot  

[root@localhost ~]# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 172.16.8.254  netmask 255.255.255.0  broadcast 172.16.8.255
        inet6 fe80::20c:29ff:fe30:707a  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:30:70:7a  txqueuelen 1000  (Ethernet)
        RX packets 105  bytes 13994 (13.6 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 112  bytes 14592 (14.2 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 4  bytes 340 (340.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4  bytes 340 (340.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
Centos7.x 更改网卡名称eth0

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