centos7中输入ifconfig出现ens33，没有eth0

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，NOBOOY需修改为yes

 [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

转载至：http://blog.csdn.net/u013252047/article/details/77947594?locationNum=3&fps=1