Centos虚拟机克隆后MAC地址变动导致网络不通问题的解决办法

CentOS Device does not seem to be present
 
故障现象：
# service network restart
Shutting down loopback insterface:           [   OK   ]
Bringing up loopback insterface:             [   OK   ]
Bringing up interface eth0:  Device eth0 does not seem to be present,delaying initialization.                    [FAILED]

解决办法:
1.修改Centos虚拟机克隆机的HWADDR为ifconfig -a的MAC地址
# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:0C:29:DC:79:AF 
…………………………
…………………………
看到上面的“HWaddr 00:0C:29:DC:79:AF”没有？把“00:0C:29:DC:79:AF”记录下来，然后
# vim /etc/sysconfig/network-scripts/ifcfg-eth0
把里面的HWADDR改成刚才记下来的那个，
即：HWADDR=00:0C:29:DC:79:AF
保存退出。

2.接着进行如下操作
# rm -rf /etc/udev/rules.d/70-persistent-net.rules
# reboot
…………………………
# service network restart
Shutting down loopback insterface:           [   OK   ]
Bringing up loopback insterface:             [   OK   ]
Bringing up interface eth0:                  [   OK   ]

看到三个OK，网络配置成功