Error: Device 'eth0' (/org/freedesktop/NetworkManager/Devices/0) disconnecting failed:

1.系统安装完成之后,默认这项为no 状态:ONBOOT=no

解决办法把ONBOOT=no修改为ONBOOT=yes  然后执行:service network restart  

OK 了

2.如果解决不了,直接禁掉NetworkManager即可。

chkconfig NetworkManager off  
service NetworkManager stop # 会断网  
service network start

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http://www.redhat.com/magazine/003jan05/features/networkmanager/

http://wiki.centos.org/zh/HowTos/Laptops/NetworkManager


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