centos把网卡名称修改为eth0的方法

2025-05-27 0 86

centos 把网卡名称修改为 eth0

默认网卡名称是 eno16777736

1、修改配置文件 ifcfg-eno16777736

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[root@localhost ~]# cd /etc/sysconfig/network-scripts/

[root@localhost network-scripts]# vim ifcfg-eno16777736

将 NAME 和 DEVICE 修改为 eth0

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TYPE=Ethernet

BOOTPROTO=dhcp

DEFROUTE=yes

IPV4_FAILURE_FATAL=no

IPV6INIT=yes

IPV6_AUTOCONF=yes

IPV6_DEFROUTE=yes

IPV6_FAILURE_FATAL=no

NAME=eth0

UUID=0fea6de7-54d9-4a8d-bddc-3061678e8a0e

DEVICE=eth0

ONBOOT=yes

PEERDNS=yes

PEERROUTES=yes

IPV6_PEERDNS=yes

IPV6_PEERROUTES=yes

重命名该文件

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mv ifcfg-eno16777736 ifcfg-eth0

2、禁用该可预测命名规则

在 grup 文件里面的 GRUB_CMDLINE_LINUX 变量添加 net.ifnames=0 biosdevname=0

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[root@localhost network-scripts]# vim /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="crashkernel=auto net.ifnames=0 biosdevname=0 rhgb quiet"

GRUB_DISABLE_RECOVERY="true"

运行命令重新生成GRUB配置并更新内核参数

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[root@localhost 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-692c580a413f41d8b51ddc4724500560

Found initrd image: /boot/initramfs-0-rescue-692c580a413f41d8b51ddc4724500560.img

done

3、重启系统

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[root@localhost network-scripts]# reboot now

查看网卡信息

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[root@localhost network-scripts]# ifconfig

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500

inet 192.168.81.128 netmask 255.255.255.0 broadcast 192.168.81.255

inet6 fe80::20c:29ff:fe5b:1a46 prefixlen 64 scopeid 0x20<link>

ether 00:0c:29:5b:1a:46 txqueuelen 1000 (Ethernet)

RX packets 474 bytes 41909 (40.9 KiB)

RX errors 0 dropped 0 overruns 0 frame 0

TX packets 266 bytes 45987 (44.9 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 6 bytes 564 (564.0 B)

RX errors 0 dropped 0 overruns 0 frame 0

TX packets 6 bytes 564 (564.0 B)

TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500

inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255

ether 00:00:00:00:00:00 txqueuelen 0 (Ethernet)

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

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原文链接:http://www.cnblogs.com/lxmhhy/p/6428884.html

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