Centos7 改变网卡名称

一、第一种方式

1.1 这种方式适合在安装操作系统的时候进行设置，键盘按压 Tab，打开kernel启动选项

1.2 增加内核参数： net.ifnames=0   biosdevname=0

1.3 输入完成之后回车进入安装操作系统

二、第二种方式

2.1 修改网卡配置文件中的 DEVICE= 参数的关于 eth0

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[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

2.2 网卡配置文件名称改为 ifcfg-eth0

1	[root@ansheng network-scripts]# mv ifcfg-eno16777728 ifcfg-eth0

2.3 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 

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[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"

2.4 用 grub2-mkconfig 命令重新生成GRUB配置并更新内核

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[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

2.4 重启系统

1	[root@ansheng network-scripts]# reboot

2.5 重启之后验证网卡名称:

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[root@ansheng ~]# ifconfig eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500   inet 192.168.56.130 netmask 255.255.255.0 broadcast 192.168.56.255   inet6 fe80::20c:29ff:fe6d:d894 prefixlen 64 scopeid 0x20<link>   ether 00:0c:29:6d:d8:94 txqueuelen 1000 (Ethernet)   RX packets 27413 bytes 38532163 (36.7 MiB)   RX errors 0 dropped 0 overruns 0 frame 0   TX packets 7727 bytes 702194 (685.7 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 0 bytes 0 (0.0 B)   RX errors 0 dropped 0 overruns 0 frame 0   TX packets 0 bytes 0 (0.0 B)   TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0