在升级过内核的机器上安装docker遇到的一个错误

出现了以下错误：

[root@osd2 ~]# service docker start
Starting cgconfig service: Error: cannot mount memory to /cgroup/memory: No such file or directory
/sbin/cgconfigparser; error loading /etc/cgconfig.conf: Cgroup mounting failed
Failed 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 <balbir@linux.vnet.ibm.com>
#  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/<controller>

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;
}