启动Vagrant时连接超时

我正尝试在64位Ubuntu 12.04机器上使用Laravel Homestead。 我已经安装了Vagrant 1.6.5和Oracle的VM虚拟机箱4.3.1。

当我用vagrant up起动我的vagrant up ，给我的错误是：

 vagrant up Bringing machine 'default' up with 'virtualbox' provider... ==> default: Checking if box 'laravel/homestead' is up to date... ==> default: A newer version of the box 'laravel/homestead' is available! You currently ==> default: have version '0.1.6'. The latest is version '0.2.0'. Run ==> default: `vagrant box update` to update. ==> default: Clearing any previously set forwarded ports... ==> default: Clearing any previously set network interfaces... ==> default: Preparing network interfaces based on configuration... default: Adapter 1: nat default: Adapter 2: hostonly ==> default: Forwarding ports... default: 80 => 8000 (adapter 1) default: 3306 => 33060 (adapter 1) default: 5432 => 54320 (adapter 1) default: 22 => 2222 (adapter 1) ==> default: Running 'pre-boot' VM customizations... ==> default: Booting VM... ==> default: Waiting for machine to boot. This may take a few minutes... default: SSH address: 127.0.0.1:2222 default: SSH username: vagrant default: SSH auth method: private key default: Warning: Connection timeout. Retrying... default: Warning: Connection timeout. Retrying... default: Warning: Connection timeout. Retrying... 

如何解决这个问题？

• 使用Vagrant shell provisioner安装NodeJS不起作用
• 用另外的文本写一个Netcatstream文件
• 我被要求inputubuntu用户的密码而不是vagrant（我在GUI中login的用户）
• 在Linux上启用stream量控制的串行通信 – 不良行为
• 安装Apache Airflow后出错

 1. giving SSH username and password 2. Enabling GUI interface