linux之CentOS7修改网卡名称

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CentOS7修改网卡名称
1.1编辑网卡信息

[iyunv@CentOS7 ~]# cd /etc/sysconfig/network-scripts/

[iyunv@CentOS7 network-scripts]# mv ifcfg-ens33 ifcfg-eth0

[iyunv@CentOS7 network-scripts]# mv ifcfg-ens34 ifcfg-eth1

[iyunv@CentOS7 network-scripts]# sed -i 's#ens33#eth0#g' ifcfg-eth0

[iyunv@CentOS7 network-scripts]# sed -i 's#ens34#eth1#g' ifcfg-eth1

[iyunv@CentOS7 network-scripts]# cat ifcfg-eth0

TYPE=Ethernet

BOOTPROTO=none

DEFROUTE=yes

IPV4_FAILURE_FATAL=no

IPV6INIT=yes

IPV6_AUTOCONF=yes

IPV6_DEFROUTE=yes

IPV6_FAILURE_FATAL=no

IPV6_ADDR_GEN_MODE=stable-privacy

NAME=eth0         #name修改为eth0

UUID=a9817ad1-0927-4132-a507-67520cefdf2a

DEVICE=eth0

ONBOOT=yes

IPADDR=10.0.0.200

PREFIX=24

GATEWAY=10.0.0.2

DNS1=10.0.0.2

IPV6_PEERDNS=yes

IPV6_PEERROUTES=yes

IPV6_PRIVACY=no

1.2修改grub

[iyunv@CentOS7 ~]# cat /etc/sysconfig/grub          #编辑内核信息,添加红色字段的

  1 GRUB_TIMEOUT=5

  2GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"

  3 GRUB_DEFAULT=saved

  4 GRUB_DISABLE_SUBMENU=true

  5GRUB_TERMINAL_OUTPUT="console"

  6GRUB_CMDLINE_LINUX="rhgb quiet net.ifnames=0biosdevname=0"

  7GRUB_DISABLE_RECOVERY="true"

[iyunv@CentOS7 ~]# grub2-mkconfig -o /boot/grub2/grub.cfg               #生成启动菜单

Generating grub configuration file ...

Found linux image: /boot/vmlinuz-3.10.0-514.el7.x86_64

Found initrd image: /boot/initramfs-3.10.0-514.el7.x86_64.img

Found linux image:/boot/vmlinuz-0-rescue-317a3da3edb24fdea3d8746cee80dd6a

Found initrd image: /boot/initramfs-0-rescue-317a3da3edb24fdea3d8746cee80dd6a.img

Done

也可以在开机启动加载安装系统界面设置。

1.3验证是否成功

[iyunv@CentOS7 ~]# reboot  #必须重启系统生效

[iyunv@CentOS7 ~]# yum install net-tools    #默认centos7不支持ifconfig需要看装net-tools包

[iyunv@CentOS7 ~]# ifconfig eth0     #再次查看网卡信息

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500

        inet 10.0.0.200  netmask 255.255.255.0  broadcast 10.0.0.255

        inet6fe80::18b6:cb77:b624:84c2  prefixlen64  scopeid 0x20<link>

        ether00:0c:29:3e:4c:93  txqueuelen 1000  (Ethernet)

        RX packets 86  bytes 9651 (9.4 KiB)

        RX errors 0  dropped 0 overruns 0  frame 0

        TX packets 89  bytes 13606 (13.2 KiB)

        TXerrors 0  dropped 0 overruns 0  carrier 0 collisions 0