Hi Matt
I had same problem on [MacOS10.9 + VMWareFusion6 + Vagrant1.4.3 + CentOS6.4 Box] and solved it.
In fact, the vagrant was not hang up, it was waiting for your answer of whether you wish upgrade vm spec or not, may be.
Therefore, it is necessary to enable GUI at first.
Edit Vagrantfile like following
----------
Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
config.vm.provider :vmware_fusion do |v|
v.gui = true
end
----------
and run "vagrant up --provider=vmware_fusion".
Then you would see the dialog whether you wish upgrade vm spec or not.
When check "never show again" and click "don't upgrade", the vagrant will run smoothly.
Once run vm successfully, you can disable gui.
I will be happy if your problem is solved.
2013年5月20日月曜日 14時21分25秒 UTC+9 Matt Black: