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Is it even possible to create swarm in an ubuntu server?

Just started using docker and in the learning stage right now. I am able to successfully create a swarm using docker machines on my mac. Now i want to test the swarm on ubuntu server but facing some issues. Please see the info below:

Commands i am running on ubuntu server:

root@unifyd-micro-1:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.1 LTS
Release: 14.04
Codename: trusty

root@unifyd-micro-1:~# docker-machine --version
docker-machine version 0.10.0, build 76ed2a6

root@unifyd-micro-1: ~# docker --version
Docker version 17.03.0-ce, build 60ccb22

admin@unifyd-micro-1:~$ vboxmanage --version

admin@unifyd-micro-1:~$ docker-machine create --driver virtualbox test
Running pre-create checks…
Error with pre-create check: “This computer doesn’t have VT-X/AMD-v enabled. Enabling it in the BIOS is mandatory”

The VT-X/AMD-v is enabled but still no luck. Is nested virtualization possible? Do i need to do something else to get swarm running in the server. Please suggest.