[rails系列1] Ubuntu下安装Rails3

sudo apt-get install libsqlite-dev

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sudo apt-get install sqlite-ruby

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apt-get install libssl-dev

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go ruby_src_path/ext/openssl

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ruby extconf.rb

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make & make install

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1. rails new demo

2. rails server

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=> gems/ruby-1.9.3-p0/gems/execjs-1.3.0/lib/execjs/runtimes.rb:50:in `autodetect': Could not find a JavaScript runtime

<= http://stackoverflow.com/questions/6282307/rails-3-1-execjs-and-could-not-find-a-javascript-runtime

installing node.js via package manager

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