Manually download from below.
- Vagrant: https://www.vagrantup.com/downloads.html
- VirtualBox: https://www.virtualbox.org/wiki/Downloads
$ vagrant -v
Vagrant 1.8.6
$ vboxmanage --version
5.1.6r110634
Find an image in the hashicorp boxes search page
$ mkdir -p vagrant/ubuntu
$ cd vagrant/ubuntu
$ vagrant init
### You get Vagrantfile here. Edit it if you need ###
$ vagrant up
$ vagrant status
Current machine states:
default running (virtualbox)
The VM is running. To stop this VM, you can run `vagrant halt` to
shut it down forcefully, or you can run `vagrant suspend` to simply
suspend the virtual machine. In either case, to restart it again,
simply run `vagrant up`.
$ vagrant ssh