Rails 4.0.2, Rails 3.2.16, Octopress, oracle 数据库驱动，反正我想用的 gems 都可以在 Windows 下正常工作，而且 rails s 速度明显快了不少

分享安装过程的几个坑:

Need manually install the sqlite3.

1. run C:\DevKit\devkitvars.bat 2. mkdir c:\temp 3. download http://packages.openknapsack.org/sqlite/sqlite-3.7.15.2-x86-windows.tar.lzma to c:\temp 4. c:\Temp>bsdtar --lzma -xf sqlite-3.7.15.2-x86-windows.tar.lzma 5. c:\Temp>gem install sqlite3 --platform=ruby -- --with-opt-dir=C:/Temp

2. Using below .gemrc and reinstall the gems like yajl-ruby, win32console or bcrypt-ruby if you found the x86-mingw32 version can not work out of box.

---
:backtrace: false
:benchmark: false
:bulk_threshold: 1000
:sources:
- http://ruby.taobao.org
:update_sources: true
:verbose: true
gem: --no-document --platform=ruby

You may want to comment out the "DL is deprecated, please use Fiddle" warning

code at C:\Ruby200\lib\ruby\2.0.0\dl.rb since it's annoy and you are not the irb/pry or some other gems code owner...

最后，今天给同事装，发现对初学者来说还是有点坑，所以这里提供一个 115 的直接安装镜像包，安装好以后直接把 C:\Ruby200 目录替换为这个压缩包里面的内容即可，可能更简单一点。