Can't Start vm-ubuntu

I’m new to rancher. I got it up and running by using this command:
docker run -v /var/run/docker.sock:/var/run/docker.sock -p 8080:80 -v /tmp/ranchervm:/ranchervm rancher/ranchervm

Then connected to https://localhost:8080 and tried to create an instance for ubuntu (rancher/vm-ubuntu) based on the instructions. Here’s where it errors out:

“Could not initialize SDL(No available video device) - exiting”

I can get the error to be skipped if I run it from the command line with “-vga cirrus -vnc :0”, however, I then don’t get the “console” option in the UI when I connect to https://localhost:8080.

Please help. Thanks!!!