解決方法
1:檢查網卡
[root@localhost ~]# vi /etc/sysconfig/network-scripts/ifcfg-ens33 是不是配置正確
2.重命名網卡配置文件ifcfg-ens33為ifcfg-eth0
mv ifcfg-ens33 ifcfg-eth0
3.編輯/etc/default/grub並加入“net.ifnames=0 biosdevname=0 ”到GRUBCMDLINELINUX變量
[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.運行命令grub2-mkconfig -o /boot/grub2/grub.cfg 來重新生成GRUB配置並更新內核參數。
[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.重啟電腦 reboot
https://www.cnblogs.com/yufeng218/p/8099213.html 參考此博客的