在Ubuntu 10.10上使用RVM安装Rails 3.0.9 -路径中没有Rails命令

这似乎与发布的其他一些问题相似，但实际上是一个不同的问题，并且有不同的(新)版本(因此，新问题)。

在一个比较新安装的Ubuntu 10.10 Maverik上，我尝试使用RVM安装Rails，就像我以前在其他发行版上做的那样。

以下是我大致采取的步骤:

Installed RVM: bash < <(curl -s https://rvm.beginrescueend.com/install/rvm)
安装了一堆依赖使用apt-get (curl, zlib-dev, g++， openssl, apache2-dev, libsqlite3-dev, libreadline5-dev)
安装Ruby: rvm install 1.9.2; rvm use 1.9.2 --default
已安装的乘客(用于Apache): rvm gem install passenger
构建Apache Passenger mod: passenger-install-apache2-module
注意，我实际上在这里有一个无关的问题:它没有通过对openssl的依赖检查。我发现仅仅执行ruby -e 'require "openssl"'就会导致一个错误。因此，按照我在http://www.ruby-forum.com/topic/90083#175543上找到的说明解决了src/ruby-1.9.2-p290/ext/openssl/中的问题，然后乘客模块安装成功。
决定为rails3创建一个gemset，因为我计划稍后测试3.1:rvm use --create 1.9.2@rails3

rvm gem install rails

这一切似乎都很顺利(除了ri和RDoc生成的几个警告)。然而，现在如果我输入rails(在新的shell登录之后)，我只得到:

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

但是，我的PATH是:

/usr/local/rvm/gems/ruby-1.9.2-p290@rails3/bin:/usr/local/rvm/gems/ruby-1.9.2-p290@global/bin:/usr/local/rvm/rubies/ruby-1.9.2-p290/bin:/usr/local/bin:/usr/local/sbin:/usr/sbin:/usr/bin:/sbin:/bin

and rvm info说:

ruby-1.9.2-p290@rails3:
  system:
    uname:       "Linux domU-12-31-39-15-36-1A 2.6.35-24-virtual #42-Ubuntu SMP Thu Dec 2 05:01:52 UTC 2010 i686 GNU/Linux"
    bash:        "/bin/bash => GNU bash, version 4.1.5(1)-release (i686-pc-linux-gnu)"
    zsh:         " => not installed"
  rvm:
    version:      "rvm 1.6.32 by Wayne E. Seguin (wayneeseguin@gmail.com) [https://rvm.beginrescueend.com/]"
  ruby:
    interpreter:  "ruby"
    version:      "1.9.2p290"
    date:         "2011-07-09"
    platform:     "i686-linux"
    patchlevel:   "2011-07-09 revision 32553"
    full_version: "ruby 1.9.2p290 (2011-07-09 revision 32553) [i686-linux]"
  homes:
    gem:          "/usr/local/rvm/gems/ruby-1.9.2-p290@rails3"
    ruby:         "/usr/local/rvm/rubies/ruby-1.9.2-p290"
  binaries:
    ruby:         "/usr/local/rvm/rubies/ruby-1.9.2-p290/bin/ruby"
    irb:          "/usr/local/rvm/rubies/ruby-1.9.2-p290/bin/irb"
    gem:          "/usr/local/rvm/rubies/ruby-1.9.2-p290/bin/gem"
    rake:         "/usr/local/rvm/gems/ruby-1.9.2-p290@global/bin/rake"
  environment:
    PATH:         "/usr/local/rvm/gems/ruby-1.9.2-p290@rails3/bin:/usr/local/rvm/gems/ruby-1.9.2-p290@global/bin:/usr/local/rvm/rubies/ruby-1.9.2-p290/bin:/usr/local/bin:/usr/local/sbin:/usr/sbin:/usr/bin:/sbin:/bin"
    GEM_HOME:     "/usr/local/rvm/gems/ruby-1.9.2-p290@rails3"
    GEM_PATH:     "/usr/local/rvm/gems/ruby-1.9.2-p290@rails3:/usr/local/rvm/gems/ruby-1.9.2-p290@global"
    MY_RUBY_HOME: "/usr/local/rvm/rubies/ruby-1.9.2-p290"
    IRBRC:        "/usr/local/rvm/rubies/ruby-1.9.2-p290/.irbrc"
    RUBYOPT:      ""
    gemset:       "rails3"

所以，我对一些Rails/Ruby/Ubuntu大师的问题是:这里发生了什么?如果我只需要在我的PATH中添加一些东西以允许bash查找rails，我就不知道要做什么。执行find/usr/local/rvm -name rails的结果是:

/usr/local/rvm/src/rvm/scripts/extras/rails
/usr/local/rvm/scripts/extras/rails
/usr/local/rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.7/test/ruby/shared/rails
/usr/local/rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.7/test/stub/rails_apps/3.0/empty/script/rails
/usr/local/rvm/gems/ruby-1.9.2-p290/gems/rails-3.0.9/bin/rails
/usr/local/rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.0.9/lib/rails
/usr/local/rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.9/lib/rails
/usr/local/rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.9/lib/rails/generators/rails
/usr/local/rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.9/lib/rails/generators/rails/app/templates/script/rails
/usr/local/rvm/gems/ruby-1.9.2-p290/gems/actionmailer-3.0.9/lib/rails
/usr/local/rvm/gems/ruby-1.9.2-p290/bin/rails
/usr/local/rvm/gems/ruby-1.9.2-p290/doc/activerecord-3.0.9/rdoc/lib/rails
/usr/local/rvm/gems/ruby-1.9.2-p290/doc/actionmailer-3.0.9/rdoc/lib/rails

但是尝试直接执行/usr/local/rvm/gems/ruby-1.9.2-p290/bin/rails只会给出:

/usr/local/rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find rails (>= 0) amongst [rake-0.8.7] (Gem::LoadError)
    from /usr/local/rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
    from /usr/local/rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems.rb:1195:in `gem'
    from /usr/local/rvm/gems/ruby-1.9.2-p290/bin/rails:18:in `<main>'

(我不知道这是不是一个合理的尝试)

以防我没有提供足够的信息:)- rvm gem list给出:

*** LOCAL GEMS ***
abstract (1.0.0)
actionmailer (3.0.9)
actionpack (3.0.9)
activemodel (3.0.9)
activerecord (3.0.9)
activeresource (3.0.9)
activesupport (3.0.9)
arel (2.0.10)
builder (2.1.2)
bundler (1.0.15)
daemon_controller (0.2.6)
erubis (2.6.6)
fastthread (1.0.7)
i18n (0.5.0)
mail (2.2.19)
mime-types (1.16)
passenger (3.0.7)
polyglot (0.3.2)
rack (1.3.2, 1.2.3)
rack-mount (0.6.14)
rack-test (0.5.7)
rails (3.0.9)
railties (3.0.9)
rake (0.8.7 ruby)
rdoc (3.9.1)
sqlite3 (1.3.4)
sqlite3-ruby (1.3.3)
thor (0.14.6)
treetop (1.4.10)
tzinfo (0.3.29)

任何帮助或指针非常感谢。与此同时，我会继续埋头苦干。

用gem install rails代替rvm gem install rails

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