centos7网卡重命名 |
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centos7默认服务器网卡名称，如下图： [root@localhost ~]# ifconfig ens33: flags=4163 mtu 1500 inet 192.168.0.160 netmask 255.255.255.0 broadcast 192.168.0.255 inet6 fe80::250:56ff:fe37:a950 prefixlen 64 scopeid 0x20 ether 00:50:56:37:a9:50 txqueuelen 1000 (Ethernet) RX packets 335 bytes 33930 (33.1 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 210 bytes 23175 (22.6 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1 (Local Loopback) RX packets 24 bytes 2920 (2.8 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 24 bytes 2920 (2.8 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0修改linux网卡名称为传统的eth开头，如下图： [root@localhost ~]# ifconfig eth0: flags=4163 mtu 1500 inet 192.168.0.112 netmask 255.255.255.0 broadcast 192.168.0.255 inet6 fe80::20c:29ff:fe4b:66b prefixlen 64 scopeid 0x20 ether 00:0c:29:4b:06:6b txqueuelen 1000 (Ethernet) RX packets 71 bytes 7624 (7.4 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 63 bytes 8717 (8.5 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1 (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
修改网卡名称方法步骤如下： 第一步：编辑/etc/sysconfig/grub文件或者/etc/default/grub文件，再倒数第二行quit后面添加如下代码： net.ifnames=0 biosdevname=0 [root@localhost ~]# cat /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="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet net.ifnames = 0 biosdevname = 0 " GRUB_DISABLE_RECOVERY="true"第二步：执行命令,grub2-mkconfig -o /boot/grub2/grub.cfg，生产新的grub.cfg文件。 [root@localhost ~]#grub2-mkconfig -o /boot/grub2/grub.cfg第三步：修改网卡配置文件 [root@localhost ~]# cd /etc/sysconfig/network-scripts/ [root@localhost ~]# mv ifcfg-ens33 ifcfg-eth0 DEVICE=eth0 [root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 IPADDR=192.168.0.112 PREFIX=24 BROADCAST=192.168.0.255 OnBOOT=yes NAME=eth0第四步：重启服务器生效 [root@localhost ~]#reboot [root@localhost ~]# ifconfig eth0: flags=4163 mtu 1500 inet 192.168.0.112 netmask 255.255.255.0 broadcast 192.168.0.255 inet6 fe80::20c:29ff:fe4b:66b prefixlen 64 scopeid 0x20 ether 00:0c:29:4b:06:6b txqueuelen 1000 (Ethernet) RX packets 243 bytes 21680 (21.1 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 165 bytes 20161 (19.6 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1 (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
选中Install CentOS 7不要回车，直接按Tab键，在行尾加入如下参数net.ifnames=0 biosdevname=0再回车进行下一步，则系统安装完成后默认网卡名称为eth模式 |
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