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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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| 1 2 | [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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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | 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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| 1 | 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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| 1 2 3 4 5 6 7 8 | [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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| 1 2 3 4 5 6 7 | [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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| 1 | [root@localhost network-scripts] # reboot now |
查看网卡信息
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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | [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 |
