I have configured Vagrant to use Rsync shared folders instead of the (incredibly SLOW) vboxsf
filesystem provided by VirtualBox by default:
Vagrant.configure("2") do |config|
config.vm.synced_folder ".", "/vagrant", type: "rsync",
rsync__args: ["--verbose", "--archive", "-z"]
end
Obviously, there's more configuration, but I found these instructions here and they generally work in synchronizing from the host to the guest.
However, I need the guest to be able to sync back to the host, as some of my build tools are only installed on the guest. How can I sync bidirectionally in the shared folder?