docker-machine create --driver generic --generic-ip-address ahmet --generic-ssh-user root ahmet

[root@zero ~]# docker-machine create --driver generic --generic-ip-address ahmet --generic-ssh-user root ahmet
Running pre-create checks…
Creating machine…
(ahmet) No SSH key specified. Assuming an existing key at the default location.
Waiting for machine to be running, this may take a few minutes…
Detecting operating system of created instance…
Waiting for SSH to be available…
Detecting the provisioner…
Provisioning with redhat…
Error creating machine: Error running provisioning: error installing docker:
[root@zero ~]#