CentOS7系统下修改网卡为eth0
时间:2015-12-12 13:45 来源:linux.it.net.cn 作者:IT
编辑网卡信息
[root@linux-node2~]# cd /etc/sysconfig/network-scripts/ #进入网卡目录
[root@linux-node2network-scripts]# mv ifcfg-eno16777728 ifcfg-eth0 #重命名网卡名称
[root@linux-node2network-scripts]# cat ifcfg-eth0 #编辑网卡信息
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
NAME=eth0 #name修改为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 #编辑内核信息,添加红色字段的
GRUB_TIMEOUT=5
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=autorhgb net.ifnames=0 biosdevname=0 quiet"
GRUB_DISABLE_RECOVERY="true"
[root@linux-node2~]# grub2-mkconfig -o /boot/grub2/grub.cfg #生成启动菜单
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
也可以在开机启动加载安装系统界面设置。
3.验证是否修改成功
[root@linux-node2~]# reboot #必须重启系统生效
[root@linux-node2~]# yum install net-tools #默认centos7不支持ifconfig 需要看装net-tools包
[root@linux-node2~]# ifconfig eth0 #在次查看网卡信息
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 64 scopeid 0x20<link>
ether 00:0c:29:5c:7b:b1 txqueuelen 1000 (Ethernet)
RX packets 152 bytes 14503 (14.1 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 98 bytes 14402 (14.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 (责任编辑：IT)
| 编辑网卡信息 [root@linux-node2~]# cd /etc/sysconfig/network-scripts/ #进入网卡目录 [root@linux-node2network-scripts]# mv ifcfg-eno16777728 ifcfg-eth0 #重命名网卡名称 [root@linux-node2network-scripts]# cat ifcfg-eth0 #编辑网卡信息 TYPE=Ethernet BOOTPROTO=static DEFROUTE=yes PEERDNS=yes PEERROUTES=yes IPV4_FAILURE_FATAL=no NAME=eth0 #name修改为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 #编辑内核信息,添加红色字段的 GRUB_TIMEOUT=5 GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX="crashkernel=autorhgb net.ifnames=0 biosdevname=0 quiet" GRUB_DISABLE_RECOVERY="true" [root@linux-node2~]# grub2-mkconfig -o /boot/grub2/grub.cfg #生成启动菜单 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 也可以在开机启动加载安装系统界面设置。 3.验证是否修改成功 [root@linux-node2~]# reboot #必须重启系统生效 [root@linux-node2~]# yum install net-tools #默认centos7不支持ifconfig 需要看装net-tools包 [root@linux-node2~]# ifconfig eth0 #在次查看网卡信息 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 64 scopeid 0x20<link> ether 00:0c:29:5c:7b:b1 txqueuelen 1000 (Ethernet) RX packets 152 bytes 14503 (14.1 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 98 bytes 14402 (14.0 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 (责任编辑：IT) |