出现了以下错误：

[root@osd2 ~]# service docker startStarting cgconfig service: Error: cannot mount memory to /cgroup/memory: No such file or directory/sbin/cgconfigparser; error loading /etc/cgconfig.conf: Cgroup mounting failedFailed to parse /etc/cgconfig.conf                         [FAILED]Starting docker:	                                   [  OK  ] memory是有的，但就是出错，需要修改：

[root@osd2 ~]# cat /etc/cgconfig.conf##  Copyright IBM Corporation. 2007##  Authors:    Balbir Singh 
     
      #  This program is free software; you can redistribute it and/or modify it#  under the terms of version 2.1 of the GNU Lesser General Public License#  as published by the Free Software Foundation.##  This program is distributed in the hope that it would be useful, but#  WITHOUT ANY WARRANTY; without even the implied warranty of#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.## See man cgconfig.conf for further details.## By default, mount all controllers to /cgroup/
      
       mount {
       cpuset    = /cgroup/cpuset;    cpu    = /cgroup/cpu;    cpuacct    = /cgroup/cpuacct; #   memory    = /cgroup/memory;    devices    = /cgroup/devices;    freezer    = /cgroup/freezer;    net_cls    = /cgroup/net_cls;    blkio    = /cgroup/blkio;}