I am using Vagrant 1.7.4 and Virtualbox 5.0.4 on Windows 8.1.
I am provisioning CoreOS machines, so virtual box guest extensions are not available.
In my vagrant file, I need to use the provisioner to copy a file that's around 500MB onto the VM.
I have found that the copying of the file takes a very long time (~20 minutes).
Is there anyway to improve the speed of the file provisioner?