Merge pull request #9600 from kinvolk/kosy/coreos

Identify operating systems closely related to CoreOS

plugins/guests/coreos/guest.rb

@@ -4,7 +4,7 @@ module VagrantPlugins
   module GuestCoreOS
     class Guest < Vagrant.plugin("2", :guest)
       def detect?(machine)
-        machine.communicate.test("cat /etc/os-release | grep ID=coreos")
+        machine.communicate.test("(cat /etc/os-release | grep ID=coreos) || (cat /etc/os-release | grep -E 'ID_LIKE=.*coreos.*')")
       end
     end
   end