重启网卡提示Bringing up interface eth0 Device eth0 does not seem to be present,delaying initialization [FAILED]

重启网卡提示Bringing up interface eth0: Device eth0 does not seem to be present,delaying initialization. [FAILED]:
1、因为克隆的机器没有正确的mac,UUID信息冲突导致的，首先将/etc/udev/rules.d/70-persistent-net.rules文件清空
2、echo "">/etc/udev/rules.d/70-persistent-net.rules
或者mv或者rm
3、将网卡配置文件/etc/sysconfig/network-scripts/ifcfg-eth0的uuid和hwaddr这两行删除
4、重启 init 6
5、/etc/init.d/network restart 不执行也可以