title: Can't install passenger 3 on Snow Leopard (with RVM and ruby 1.9.2)
body: <p>I've been trying to install passenger with no success yet.</p>
  
  <p>I've installed the gem, but when I run</p>
  
  <pre><code>passenger-install-apache2-module
  </code></pre>
  
  <p>it tells me</p>
  
  <pre><code>This installer must be able to write to the following directory:
  /Users/myname/.rvm/gems/ruby-1.9.2-p0/gems/passenger-3.0.0
  But it can't do that, because you're running the installer as myname.
  Please re-run this installer as root.
  </code></pre>
  
  <p>but if I do</p>
  
  <pre><code>sudo passenger-install-apache2-module
  </code></pre>
  
  <p>I get</p>
  
  <pre><code>/Users/myname/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/rubygems.rb:762:in `report_activate_error': Could not find RubyGem passenger (&gt;= 0) (Gem::LoadError)
  </code></pre>
  
  <p>from /Users/myname/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/rubygems.rb:219:in <code>activate'
   from /Users/myname/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/rubygems.rb:1065:in</code>gem'
   from /Users/myname/.rvm/gems/ruby-1.9.2-p0/bin/passenger-install-apache2-module:18:in `'</p>
  
  <p>I've tried to look at those files, but cannot understand what's wrong.</p>
  
  <p>can you please help?</p>
  
  <p>thanks, P</p>