rails-dev-box, rails developer最好的开发环境
rails社区开发目前使用的这个pupet环境，应该是理想的开发环境。这里推荐给大家：[rails-dev-box](https://github.com/rails/rails-dev-box) 我的环境是Fedora，kernel经常会更新，导致virtualbox需要重新在guest上build驱动，不然会提示警告： $ vagrant up [default] Importing base box 'ubuntu-12.04-64bit'... [default] The guest additions on this VM do not match the install version of VirtualBox! This may cause things such as forwarded ports, shared folders, and more to not work properly. If any of those things fail on this machine, please update the guest additions and repackage the box. 今天看了一个这个技巧：[Vagrant Tip: Sync VirtualBox Guest Additions](http://kvz.io/blog/2013/01/16/vagrant-tip-keep-virtualbox-guest-additions-in-sync/) 使用了vagrant的plugin: vagrant-vbguest 我试用了，平滑升级，it works like charm!
