因为为了方便以后做实验，所以就把之前安装好的环境导出到VOF模板 。然后今天需要两个虚拟机的时候，便又导入之前准备的环境。ping 网络的时候发现一直ping不通，后来ifconfig一下发现
[root@doraemon network-scripts]# ifconfig
lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:32 errors:0 dropped:0 overruns:0 frame:0
          TX packets:32 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2288 (2.2 KiB)  TX bytes:2288 (2.2 KiB)
Shutting down loopback interface:                          [  OK  ]
Bringing up loopback interface:                            [  OK  ]
Bringing up interface eth0:  Device eth0 does not seem to be present, delaying initialization.[FAILED]// 设备eth0 并不存在，延迟初始化

于是上网查询 找到解决办法
root 用户下  vi /etc/udev/rules.d/70-persistent-net.rules  内容如下：
#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 0x8086:0x100f (e1000)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:63:f4:90", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x8086:0x100f (e1000)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:15:fa:62", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"
~                                                                
记录下eth1的MAC地址00:0c:29:15:fa:62

接下来 进入/etc/sysconfig/network-scripts/的目录下
[root@doraemon ~]# cd /etc/sysconfig/network-scripts/
[root@doraemon network-scripts]# mv ifcfg-eth0 ifcfg-eth1
进入 ifcfg-eth1编辑  将DEVICE 后的eth0 改为eth1，并将HWADDR后的MAC地址改为前面标记的 [root@doraemon network-scripts]# vi ifcfg-eth1
DEVICE=eth1
TYPE=Ethernet
HWADDR=00:0c:29:15:fa:62
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.88.22
NETMARK=255.255.255.0