ruby on rails - Missing config.ru when using rackup -


when running rackup command, error message shown:

[root@li608-165 ~]# rackup configuration /root/config.ru not found

i installed ruby on rails.

system: centos 6.5 ruby: 1.9.3-p547

you need add file called config.ru root/ directory.

config.ru configuration file rackup, , controls rackup run.

look @ section 2.3 explanation: http://guides.rubyonrails.org/rails_on_rack.html

to use rackup instead of rails' rails server, can put following inside config.ru of rails application's root directory:

# rails.root/config.ru require ::file.expand_path('../config/environment', __file__)  use rails::rack::debugger use rack::contentlength run rails.application

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