2016年11月26日 运维日记：Linux母盘Clone无法联网（适用于Hyper-V，VMWARE，KVM等），虚拟化封装的母盘，因为网卡MAC地址的原因，导致直接克隆出的小鸡仍然是旧的MAC地址，从而无法联网。

具体现象：

解决方案：

一、首先vim /etc/udev/rules.d/70-persistent-net.rules

# vi /etc/udev/rules.d/70-persistent-net.rules
# This file was automatically generated by the /lib/udev/write_net_rules
# program, run by the persistent-net-generator.rules rules file.
#
# You can modify it, as long as you keep each rule on a single
# line, and change only the value of the NAME= key.
# PCI device 0x1022:0x2000 (pcnet32)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:8f:89:97", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x1022:0x2000 (pcnet32)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:50:bd:17", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

找到eth1网卡的mac地址00:0c:29:50:bd:17。

二、然后vi /etc/sysconfig/network-scripts/ifcfg-eth0

将 DEVICE="eth0" 改成 DEVICE="eth1" ,
将 HWADDR="00:0c:29:8f:89:97" 改成上面的mac地址 HWADDR="00:0c:29:50:bd:17"

最后，重启网络

service network restart    #centos6
systemctl retsart network     #centos7

附：更简洁的把设备描述信息，保留eth1新mac地址即可，然后把eth0对应新mac地址重启网络即可！