CentOS7 Failed to start LSB: Bring up/down networking.解決方法

今天用CentOS7 RDO方式安裝Openstack，文檔上說要disable NetworkManager, 用 network服務才行。 但是我用 service network start命令啓動時報錯： [[email protected] network-scripts]# service network start Starting network (via systemctl): 

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