Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/12 Error: Timeout 90 sec ex

网卡1重启失败，原因是由于RedHat自己开发的NetworkManager管理工具和/etc/sysconfig/network-scripts/ifcfg-ethx配置不同步造成的。消除这个提示，请关闭NetworkManager服务即可：

Bringing up interface eth1:  Active connection state: activating

Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/12
Error: Timeout 90 sec expired.

                                                           [FAILED]

解决方法：

[root@master Desktop]# chkconfig NetworkManager off 

[root@master Desktop]#  service NetworkManager stop

Stopping NetworkManager daemon:                            [  OK  ]

再次重启解决

[root@master Desktop]#  service network restart
Shutting down interface eth0:                              [  OK  ]
Shutting down loopback interface:                          [  OK  ]
Bringing up loopback interface:                            [  OK  ]
Bringing up interface eth0:  Determining if ip address 192.168.10.10 is already in use for device eth0...
                                                           [  OK  ]