[root@localhost systemd]# docker run -ti centos:centos7 /bin/bash
Timestamp: 2015-07-31 20:23:05.441976222 -0400 EDT
Code: System error

Message: operation not supported

Frames:
---
0: setupRootfs
Package: github.com/docker/libcontainer
File: rootfs_linux.go@29
---
1: Init
Package: github.com/docker/libcontainer.(*linuxStandardInit)
File: standard_init_linux.go@52
---
2: StartInitialization
Package: github.com/docker/libcontainer.(*LinuxFactory)
File: factory_linux.go@223
---
3: FATA[0001] Error response from daemon: Cannot start container f3087adba6b1be579a288fd0e2f1d4b5aa9dc505a8cf1d9cb518f7dea2b751cb: [8] System error: operation not supported