CentOS7修改網卡爲eth0
1.編輯網卡信息
[root@linux-node2~]# cd /etc/sysconfig/network-scripts/ #進入網卡目錄 [root@linux-node2network-scripts]# mv ifcfg-eno16777728 ifcfg-eth0 #重命名網卡名稱 [root@linux-node2 network-scripts]# cat ifcfg-eth0 #編輯網卡信息 TYPE=Ethernet BOOTPROTO=static DEFROUTE=yes PEERDNS=yes PEERROUTES=yes IPV4_FAILURE_FATAL=no NAME=eth0 #name修改爲eth0 ONBOOT=yes IPADDR=192.168.56.12 NETMASK=255.255.255.0 GATEWAY=192.168.56.2 DNS1=192.168.56.2
2.修改grub
[root@linux-node2 ~]# cat /etc/sysconfig/grub #編輯內核信息,添加紅色字段的 GRUB_TIMEOUT=5 GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX="crashkernel=auto rhgb net.ifnames=0 biosdevname=0 quiet" GRUB_DISABLE_RECOVERY="true" [root@linux-node2 ~]# grub2-mkconfig -o /boot/grub2/grub.cfg #生成啓動菜單 Generatinggrub configuration file ... Foundlinux image: /boot/vmlinuz-3.10.0-229.el7.x86_64 Foundinitrd image: /boot/initramfs-3.10.0-229.el7.x86_64.img Foundlinux image: /boot/vmlinuz-0-rescue-1100f7e6c97d4afaad2e396403ba7f61 Foundinitrd image: /boot/initramfs-0-rescue-1100f7e6c97d4afaad2e396403ba7f61.img Done
3.驗證是否修改成功
[root@linux-node2 ~]# reboot #必須重啓系統生效 [root@linux-node2 ~]# yum install net-tools #默認centos7不支持ifconfig 需要看裝net-tools包 [root@linux-node2 ~]# ifconfig eth0 #在次查看網卡信息 eth0:flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.56.12 netmask 255.255.255.0 broadcast 192.168.56.255 inet6 fe80::20c:29ff:fe5c:7bb1 prefixlen 64scopeid 0x20<link> ether 00:0c:29:5c:7b:b1 txqueuelen 1000 (Ethernet) RX packets 152 bytes 14503 (14.1 KiB) RX errors 0 dropped 0overruns 0 frame 0 TX packets 98 bytes 14402 (14.0 KiB) TX errors 0 dropped 0 overruns 0 carrier 0collisions 0