CentOS7默认的网卡名称是和设备名称是随机的，如果要修改网卡名称以eth开头，有两种方式
第一种方式
这种方式适合在安装操作系统的时候进行设置，
点击 Tab，打开kernel启动选项，
增加内核参数：net.ifnames=0 biosdevname=0
输入完成之后回车正常安装操作系统就好了。
第二种方式
修改网卡配置文件中的DEVICE=参数的关于eth0
[[email protected] ~]# cd /etc/sysconfig/network-scripts/[[email protected] network-scripts]# vi ifcfg-eno16777728TYPE=EthernetBOOTPROTO=dhcpDEFROUTE=yesPEERDNS=yesPEERROUTES=yesIPV4_FAILURE_FATAL=noIPV6INIT=yesIPV6_AUTOCONF=yesIPV6_DEFROUTE=yesIPV6_PEERDNS=yesIPV6_PEERROUTES=yesIPV6_FAILURE_FATAL=noNAME=eno16777728UUID=8a3eade8-005c-46df-81f2-6e2598457bac#DEVICE=eno16777728DEVICE=eth0ONBOOT=yes |
网卡配置文件名称改为ifcfg-eth0
[[email protected] network-scripts]# mv ifcfg-eno16777728 ifcfg-eth0 |
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
[[email protected] network-scripts]# vi /etc/default/grubGRUB_TIMEOUT=5GRUB_DISTRIBUTOR="$(sed ‘s, release .*$,,g‘ /etc/system-release)"GRUB_DEFAULT=savedGRUB_DISABLE_SUBMENU=trueGRUB_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" |
用grub2-mkconfig命令重新生成GRUB配置并更新内核
[[email protected] network-scripts]# grub2-mkconfig -o /boot/grub2/grub.cfgGenerating 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-4dd6b54f74c94bff9e92c61d669fc195Found initrd image: /boot/initramfs-0-rescue-4dd6b54f74c94bff9e92c61d669fc195.imgdone |
重启系统
[[email protected] network-scripts]# reboot |
重启之后验证网卡名称:
[[email protected] ~]# 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 |
原文地址：https://www.cnblogs.com/hujianli/p/9388831.html
时间： 2024-11-08 06:41:18