原文转自 ：https://blog.csdn.net/u013252047/article/details/77947594 

 

vmware安装的centos7中没有出现eth0网卡，也没有ip，不能上网，输入ifconfig后如下图

 

解决办法

1.编辑网卡的配置文件 vi /etc/sysconfig/network-scripts/ifcfg-ens33 将里面的NAME和DEVICE项修改为eth0

[root@localhost ~]# vi /etc/sysconfig/network-scripts/ifcfg-ens33

TYPE=Ethernet

BOOTPROTO=static

IPADDR=192.168.0.116

NETMASK=255.255.255.0

GATEWAY=192.168.0.115

DNS1=114.114.114.114

DNS2=8.8.8.8

DEFROUTE=yes

PEERDNS=yes

PEERROUTES=yes

IPV4_FAILURE_FATAL=no

IPV6INIT=yes

IPV6_AUTOCONF=yes

IPV6_DEFROUTE=yes

IPV6_PEERDNS=yes

IPV6_PEERROUTES=yes

IPV6_FAILURE_FATAL=no

IPV6_ADDR_GEN_MODE=stable-privacy

NAME=eth0

UUID=972a1eb3-049f-4db2-80f5-7d8fd28ef76f

DEVICE=eth0

ONBOOT=yes

2.重命名网卡配置文件ifcfg-ens33为ifcfg-eth0

[root@localhost ~]# cd /etc/sysconfig/network-scripts/

[root@localhost network-scripts]# mv ifcfg-ens33 ifcfg-eth0

3.编辑/etc/default/grub并加入“net.ifnames=0 biosdevname=0 ”到GRUBCMDLINELINUX变量

[root@localhost network-scripts]# vi /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"

4.运行命令grub2-mkconfig -o /boot/grub2/grub.cfg 来重新生成GRUB配置并更新内核参数。

[root@localhost network-scripts]# grub2-mkconfig -o /boot/grub2/grub.cfg

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-b7f83ca165964a47b8b283907b126140

Found initrd image: /boot/initramfs-0-rescue-b7f83ca165964a47b8b283907b126140.img

done

5.重启系统

[root@localhost network-scripts]# reboot

6.输入ifconfig验证

 

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