如何解决虚拟机克隆导致"Bringing up interface eth0: Error: No suitable device found: no device found for connection 'System eth0'."

在VMware的虚拟机中克隆CentOS，在重启网卡的时候报错：

Bringing up interface eth0: Error: No suitable device found: no device found for connection 'System eth0'.

Shutting down loopback interface:                          [  OK  ]

Bringing up loopback interface:                            [  OK  ]

Bringing up interface eth0:  Error: No suitable device found: no device found for connection 'System eth0'.

[FAILED]

现象

解决办法：

首先，打开/etc/udev/rules.d/70-persistent-net.rules内容如下面例子所示

# 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:29:67:c5:e2", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

# PCI device 0x8086:0x100f (e1000)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:75:d1:d7", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

我们查看克隆源系统与克隆后中eth0的配置：

#cat /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0

HWADDR=00:0C:29:67:C5:E2
TYPE=Ethernet
UUID=5cb1d564-a7e8-4b57-bdb4-7e76e92f460a
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=dhcp

可以看出，克隆的时候把网卡的MAC地址也克隆了，导致了有两个系统有相同的MAC地址。

方法一、DEVICE=eth0改成DEVICE=eth1，然后HWADDR改成00:0c:29:75:d1:d7,然后把 ifcfg-eth0改名为ifcfg-eth1

方法二、在70-persistent-net.rules文件中把eth0的地址改成00:0c:29:75:d1:d7，同时把eth1的配置注释掉，然后在ifcfg-eth0中修改HWADDR。

最后 service network restart即可。