Redmine

hello,
I try to install lighttpd with redmine but I encounter error 404 or 500.
I'm using Ubuntu 9.04.

lighttpd version: lighttpd-1.4.19 (ssl) - a light and fast webserver
Build-Date: Mar 17 2009 22:14:13

Redmine Production.log

Processing ApplicationController#index (for ::1 at 2009-06-10 09:47:42) [GET]
  Session ID: cbd7ab9fd481eef9b068bf5a7184218e
  Parameters: {}

ActionController::RoutingError (No route matches "/redmine/" with {:method=>:get}):
    /vendor/rails/actionpack/lib/action_controller/routing/recognition_optimisation.rb:67:in `recognize_path'
    /vendor/rails/actionpack/lib/action_controller/routing/route_set.rb:385:in `recognize'
    /vendor/rails/actionpack/lib/action_controller/dispatcher.rb:148:in `handle_request'
    /vendor/rails/actionpack/lib/action_controller/dispatcher.rb:107:in `dispatch'
    /vendor/rails/actionpack/lib/action_controller/dispatcher.rb:104:in `synchronize'
    /vendor/rails/actionpack/lib/action_controller/dispatcher.rb:104:in `dispatch'
    /vendor/rails/actionpack/lib/action_controller/dispatcher.rb:120:in `dispatch_cgi'
    /vendor/rails/actionpack/lib/action_controller/dispatcher.rb:35:in `dispatch'
    /vendor/rails/railties/lib/fcgi_handler.rb:103:in `process_request'
    /vendor/rails/railties/lib/fcgi_handler.rb:153:in `with_signal_handler'
    /vendor/rails/railties/lib/fcgi_handler.rb:101:in `process_request'
    /vendor/rails/railties/lib/fcgi_handler.rb:78:in `process_each_request'
    /usr/lib/ruby/1.8/fcgi.rb:612:in `each_cgi'
    /usr/lib/ruby/1.8/fcgi.rb:609:in `each'
    /usr/lib/ruby/1.8/fcgi.rb:609:in `each_cgi'
    /vendor/rails/railties/lib/fcgi_handler.rb:77:in `process_each_request'
    /vendor/rails/railties/lib/fcgi_handler.rb:76:in `catch'
    /vendor/rails/railties/lib/fcgi_handler.rb:76:in `process_each_request'
    /vendor/rails/railties/lib/fcgi_handler.rb:50:in `process!'
    /vendor/rails/railties/lib/fcgi_handler.rb:24:in `process!'
    /public/dispatch.fcgi:24

Rendering /home/xarkam/public_html/redmine/public/404.html (404 Not Found)

lighttpd 30-redmine.conf

# Subdirectory configuration for lighttpd server using mod_fastcgi
$HTTP["url"] =~ "^/redmine" {
        server.document-root = "/home/xarkam/public_html/redmine/public/" 
    server.follow-symlink    = "enable" 

        alias.url = ()

        server.indexfiles = ( "dispatch.fcgi" )

        magnet.attract-physical-path-to = ( "/home/xarkam/public_html/redmine/public/cleanurl.lua" )

        fastcgi.server      = ( ".fcgi" => 
    ( "localhost" => (
        "min-procs"       => 1,
        "max-procs"       => 4,
        "idle-timeout"    => 120,
        "socket"          => "/tmp/redmine.sock",
        "check-local"     => "disable",
        "bin-path"        => "/usr/bin/ruby /home/xarkam/public_html/redmine/public/dispatch.fcgi",
        "bin-environment" => ( 
     "RAILS_ENV" => "production",
     "RAILS_ROOT" => "/home/xarkam/public_html/redmine" 
    )
    ) ) )

}

If add a rewrite section i have a 500 error in place of a 404 error.