Rails 在 Ubuntu 10.10 上安装失败

Question

我正在尝试在 Ubuntu 10.10 上安装 rails，但每次都得到 File not found: lib。 Ruby 和 Rubygems 已正确安装。我在网上看到过这个问题，但没有任何解决方案适合我。我重新安装了 rdoc，仍然得到相同的结果。

$ sudo gem install rails
...
Successfully installed rails-3.0.1
24 gems installed
... 
Installing ri documentation for builder-2.1.2...
ERROR:  While generating documentation for builder-2.1.2
... MESSAGE:   Unhandled special: Special: type=17, text="<!-- HI -->"
... RDOC args: --ri --op /var/lib/gems/1.8/doc/builder-2.1.2/ri --title Builder -- Easy XML Building --main README --line-numbers --quiet lib CHANGES Rakefile README doc/releases/builder-1.2.4.rdoc doc/releases/builder-2.0.0.rdoc doc/releases/builder-2.1.1.rdoc --title builder-2.1.2 Documentation
(continuing with the rest of the installation)
...
Installing ri documentation for rails-3.0.1...
File not found: lib

$ rails -v
The program 'rails' is currently not installed.  You can install it by typing:
sudo apt-get install rails

Answer 1

我写了一个detailed how-to guide on installing Ruby and Rails on Ubuntu 10.10 来帮助你解决这个问题。

保证，否则退款！

Answer 2

您应该避免使用打包版本的 Ruby（即避免使用来自 apt-get install ruby 的 Ruby 版本）。 Debian 打包系统（Ubuntu 使用的）与 Ruby 的预期相冲突。

相反，您应该从源代码安装 Ruby。

有一个名为RVM 的好工具可以帮助您做到这一点。

# Install prerequisites
$ sudo apt-get install git curl wget

# Download and install RVM
$ bash < <( curl http://rvm.beginrescueend.com/releases/rvm-install-latest )

# Install RVM into your .bash_profile
$ cat >> ~/.bash_profile <<-PROFILE
> [[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"
> PROFILE

# Load RVM into the current shell
$ rvm reload

# Install prerequisites
$ rvm notes
$ sudo apt-get install \
>   build-essential bison openssl libreadline6 libreadline6-dev curl \
>   git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-0 \
>   libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev \
>   ncurses-dev

# Install Ruby
$ rvm install ruby-1.9.2-p180 # latest version as of now
$ rvm use ruby-1.9.2-p180 --default

# Check it
$ ruby -v
$ which ruby
$ gem install rails