CentOS上的Docker报告"运行时无法以只读方式挂载sys"

我刚刚开始使用Docker,并尝试根据这份官方文档在CentOS 6.5(在VMware Player 6中)安装Docker .在我尝试启动容器之前,所有事情都会发生.

$ sudo docker run -i -t centos /bin/bash
2014/06/19 10:16:36 unable to remount sys readonly: unable to mount sys as readonly max retries reached

其他信息如下.

$ uname -r
2.6.32-431.el6.x86_64

$ cat /etc/redhat-release 
CentOS release 6.5 (Final)

$ sudo docker version
Client version: 1.0.0
Client API version: 1.12
Go version (client): go1.2.2
Git commit (client): 63fe64c/1.0.0
Server version: 1.0.0
Server API version: 1.12
Go version (server): go1.2.2
Git commit (server): 63fe64c/1.0.0

$ sudo docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
centos              latest              0c752394b855        9 days ago          124.1 MB

你能帮忙弄清楚问题是什么吗？谢谢.