Installing Rails 3.0.7 on Ubuntu 10.10

Having some real difficulty setting up my RoR envirionment in Ubuntu 10.10

Installed RVM with ruby 1.9.2

ruby 1.9.2p180 (2011-02-18 revision 30909) [i686-linux]

and i have ruby gems setup

RubyGems Environment:
  - RUBYGEMS VERSION: 1.6.2
  - RUBY VERSIO开发者_开发知识库N: 1.9.2 (2011-02-18 patchlevel 180) [i686-linux]
  - INSTALLATION DIRECTORY: /home/toast/.rvm/gems/ruby-1.9.2-p180
  - RUBY EXECUTABLE: /home/toast/.rvm/rubies/ruby-1.9.2-p180/bin/ruby
  - EXECUTABLE DIRECTORY: /home/toast/.rvm/gems/ruby-1.9.2-p180/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86-linux
  - GEM PATHS:
     - /home/toast/.rvm/gems/ruby-1.9.2-p180
     - /home/toast/.rvm/gems/ruby-1.9.2-p180@global
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - http://rubygems.org/

Now when it came to installing Rails i had all sorts of difficulties but now it seems to install:

    $ sudo gem install rails
Successfully installed rails-3.0.7
1 gem installed
Installing ri documentation for rails-3.0.7...
Installing RDoc documentation for rails-3.0.7...

yet rails commands fail and rails -v results in

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

I'm out of ideas on this one!

many thanks

You've installed Rails under root user (sudo), and then you are trying to use it under local user. As far as it installed to root user you haven't got rails command in your local user PATH.

What you can do

1. Add its Path manualy
2. Install it via local user
3. Use RVM

I prefer to use RVM.

As far as you are using RVM, you don't need to use sudo. But when you need it you can use rvmsudo, but not in this case. Just

gem install rails

You don't have to use sudo with RVM. If you type rvm info, you will see what ruby you use and where are your gems stored.

With sudo, you are probably using system's ruby from Ubuntu package.

Jus try gem install rails.

As others have said you need to install rails from gem via

gem install rails

The other somewhat tricky thing is that when you change into the rails app directory you need to make sure the dependencies are met for that app by doing:

bundle install

I've gone into a bit more detail on getting Rails 3 set up under Ubuntu at http://blog.dcxn.com/2011/06/21/rolling-with-rails-3-on-ubuntu-11-04/

Good luck!