CentOS 7 修改网卡名为eth0

标签： linux

笔者Q:972581034 交流群：605799367。有任何疑问可与笔者或加群交流

CentOS7的网卡名称太长，这不符合我们的使用习惯，增加了管理难度，最简单粗暴的方法是在安装系统的时候就把网卡名改了。当然，安装好的系统也是可以修改的。下面分别介绍两种方法。

方法一：

在进入安装界面的时候把光标移动到Install CentOS7,按下tab键，在后面输入“ifnames=0 biosdevname=0”回车即可。

方法二：

进入网卡配置文件目录

[root@centos7 ~]# cd /etc/sysconfig/network-scripts/

重命名网卡

[root@centos7 network-scripts]# mv ifcfg-eno16777736 ifcfg-eth0

修改配置文件NAME、DEVICE

[root@centos7 network-scripts]# vim ifcfg-eth0 TYPE=EthernetBOOTPROTO=staticTYPE=EthernetBOOTPROTO=staticDEFROUTE=yesTYPE=EthernetBOOTPROTO=staticDEFROUTE=yesPEERDNS=yesPEERROUTES=yesIPV4_FAILURE_FATAL=noNAME=eth0UUID=552c01f7-fd9d-4f19-913e-379a2bf5a467DEVICE=eth0ONBOOT=yesIPADDR=10.0.0.111"ifcfg-eth0" 14L, 239C written

修改grub

sed -i.bak 's#crashkernel=auto rhgb quiet#crashkernel=auto rhgb net.ifnames=0 biosdevname=0 quiet#g' /etc/sysconfig/grub

[root@centos7 network-scripts]# vim /etc/sysconfig/grub GRUB_TIMEOUT=5GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"GRUB_DEFAULT=savedGRUB_DISABLE_SUBMENU=trueGRUB_TERMINAL_OUTPUT="console"GRUB_CMDLINE_LINUX="crashkernel=auto rhgb net.ifnames=0 biosdevname=0 quiet""/etc/sysconfig/grub" 7L, 263C written

生成启动菜单

[root@centos7 network-scripts]# grub2-mkconfig -o /boot/grub2/grub.cfg Generating grub configuration file ...Found linux image: /boot/vmlinuz-3.10.0-327.el7.x86_64Found initrd image: /boot/initramfs-3.10.0-327.el7.x86_64.imgFound linux image: /boot/vmlinuz-0-rescue-7ed5d4eebe4c43e3aadbda68cd0ef311Found initrd image: /boot/initramfs-0-rescue-7ed5d4eebe4c43e3aadbda68cd0ef311.imgdone

重启系统生效

[root@centos7 network-scripts]# reboot

查看是否成功

centos7默认没有ifconfig命令，需yum install net-tools -y安装

[root@centos7 ~]# ifconfigeth0: flags=4163
     
        mtu 1500        inet 10.0.0.111  netmask 255.255.255.0  broadcast 10.0.0.255        inet6 fe80::20c:29ff:fe57:875c  prefixlen 64  scopeid 0x20
              ether 00:0c:29:57:87:5c  txqueuelen 1000  (Ethernet)        RX packets 39  bytes 4887 (4.7 KiB)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 43  bytes 7502 (7.3 KiB)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0lo: flags=73
      
         mtu 65536        inet 127.0.0.1  netmask 255.0.0.0        inet6 ::1  prefixlen 128  scopeid 0x10
       
                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