How to use this box with Vagrant:

Vagrant.configure("2") do |config|
  config.vm.box = "yungsang/coreos-alpha"
  config.vm.box_version = "0.9.18"
end
vagrant init yungsang/coreos-alpha \
  --box-version 0.9.18
vagrant up

This version was created almost 10 years ago.

CoreOS Alpha

Cf.) https://github.com/YungSang/coreos-packer/tree/alpha
Cf.) https://github.com/YungSang/coreos-cluster
Cf.) https://github.com/YungSang/docker-attach

For VirtualBox

$ vagrant init yungsang/coreos-alpha
$ vagrant up

For Parallels

$ vagrant plugin install vagrant-parallels
$ vagrant init yungsang/coreos-alpha
$ vagrant up --provider parallels
2 providers for this version.
  • parallels
    unknown Externally hosted (github.com)
  • virtualbox
    unknown Externally hosted (github.com)