CentOS eth0 提示Device does not seem 和Device eth1 has different MAC address than expected, ignoring

第一次碰到在VMware中安裝的CentOS用ifconfig檢視隻有lo沒有eth0，但用ifconfig -a 顯示eth1和lo并且用PUTTY無法連接配接的問題，經百度查詢，用service network restart重新開機網卡後顯示：

[[email protected] ~]# 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]

造成這樣的原因，是因為在虛拟機（Vmware）中移動了Centos系統對應的檔案，導緻重新配置時，網卡的MAC位址變了，輸入ifconfig -a,找不到eth0

安裝完一個centos虛拟機，又拷貝一份，開機後網卡無法正常啟動，報錯：Device eth0 does not seem to be present, 

delaying initialization

解決：# mv /etc/sysconfig/network-scripts/ifcfg-eth0  sysconfig/network-scripts/ifcfg-eth1

vim  sysconfig/network-scripts/ifcfg-eth1

修改DEVICE="eth0" 

為DEVICE="eth1"

可删掉uuid、實體位址

然後重新開機網卡嘗試了下發現報錯又變成：Device eth1 has different MAC address than expected, ignoring.

問題原因：

配置檔案裡的MAC位址和實際的MAC不一樣。

配置檔案：含有MAC資訊的配置檔案是/etc/sysconfig/network-scripts/ifcfg-eth1

實際MAC：檢視本機實際MAC的指令是 ifconfig eth1

發現配置檔案中的MAC與實際的MAC不同

解決方法：

把配置檔案中的HWADDR的MAC改成本機實際的MAC位址，儲存後重新開機網卡後解決。