我在《Vagrant 1.6.5》和《Virtual Box 4.3.16》中也遇到了同样的问题。 在https://github.com/mitchellh/vagrant/issues/4470上描述的解决方案对我来说很好，我只需要删除VirtualBox 4.3.16并安装旧版本4.3.12。

我发现在MacOS上使用VirtualBox将此添加到Vagrantfile将让你更进一步:

config.vm.provider 'virtualbox' do |vb|
  vb.customize ['modifyvm', :id, '--cableconnected1', 'on']
end

我是这样做的:

“vagrant up”启动虚拟机后，关闭虚拟机，在虚拟框中进入新的虚拟机设置。然后点击“网络”->“高级” 适配器类型:我从“英特尔PRO XXXXX”改为“PCNet-Fast”(或任何其他适配器除了英特尔PRO确实工作)

在Homestead.yaml上寻找这条线:

config.vm.network "forwarded_port", guest: 80, host: 8080

并更改为:

config.vm.network "forwarded_port", guest: 80, host: 8000

然后在Homestead目录下运行:

vagrant destroy
vagrant up

看看它是否有效。

需要反复检查的一件事是，您的计算机BIOS中是否启用了硬件虚拟化。

我的问题是相同的超时字符串，但我只能在GUI中看到黑屏。

我刚刚安装的一台笔记本电脑一直显示同样的问题。经过几个小时的搜索，我终于找到了一个提示，看看BIOS是否启用了硬件虚拟化。

以下是我找到的帖子内容:

我发现仍然有一些用户遇到了这个问题。因此，我将尝试在下面总结一些可能的解决SSH超时问题的方法:

Make sure your firewall or antivirus is not blocking the program (which I doubt will happen often) Give your vagrant machine some time for timeouts to happen. If you dont have a very fast PC / Mac, the VM will take while to boot into an SSH ready state, so timeouts will happen. Therefore, first try to let vagrant timeout COMPLETELY before concluding that there is a fault. If vagrant times out completely then increase the timeout limit in the vagrant file to a few min and try again. If that still doesnt work, then try to clean boot your vagrant machine through the VirtualBox interface and enable the GUI of the machine beforehand. If the GUI doesn't show anything happening (ie. just blackscreen, no text) while it is booting, then your vagrant machine has got problems. Destroy the entire machine through the VB interface and reinstall. Delete the ubuntu image files in the Vagrant Images folder in the user folder and redownload and install. Do you even have an intel processor that supports 64bit hardware virtualisation? Google it. If you do, make sure there is no setting in your Bios disabling this feature. Disable hyper-v feature if you are running windows 7 or 8. Google how to disable. Make sure you are running through an SSH enabled client. Use Git bash. Download: http://git-scm.com/downloads Install a 32bit version of ubuntu like trusty32 or precise32. Just change the version in the vagrant file and reinstall vagrant in new directory. Make sure you are using the latest vagrant and virtualbox versions. Last resorts: Format your computer, reinstall windows and buy an intel core isomething processor.

希望这能有所帮助。

在我从Vagrantfile中删除这一行后，我也遇到了同样的问题:

config.vm.network "private_network", type: "dhcp"

我把这行放回去后，VM加载正常。