Deploying with RVM on Linode Ubuntu 10.4 Does not install RVM - ruby-on-rails

Question

I'm trying to deploy with Capistrano and RVM and even though when running cap bundler:install_bundler which is supposed to install bundler, and succeeds. After, when running cap deploy it fails with an error that bundler is not installed.
** [out :: victorstan.com] ERROR: Gem bundler is not installed, run `gem install bundler` first.
Any ideas why it installs bundler, but then can't find it, or installs it in the wrong place (i guess?). Thanks!
here is part of my deploy.rb script:
set :application, "dinner"
set :domain, "victorstan.com"
set :repository, "ssh://#{domain}/~/#{application}.git"
set :use_sudo, false
set :user, "victorstan" # The server's user for deploys
set :scm, :git
set :scm_username, "passenger"
set :deploy_to, "/srv/www/#{application}"
set :keep_releases, 2
set :branch, "master"
set :deploy_via, :copy # won't make cap prompt for password when deploying
set :scm_verbose, true
set :rvm_ruby_string, 'ruby-2.0.0-p195#dinner'
set :rvm_type, :user
set :rvm_install_type, :stable
set :whenever_command, "bundle exec whenever"
require "bundler/capistrano"
require "rvm/capistrano"
require "whenever/capistrano"
If I try to use cap to install bundler, it works:
cap bundler:install_bundler
* 2013-06-08 15:33:54 executing `bundler:install_bundler'
* executing "gem install bundler"
servers: ["victorstan.com"]
[victorstan.com] executing command
** [out :: victorstan.com] Successfully installed bundler-1.3.5
** [out :: victorstan.com] 1 gem installed
command finished in 1373ms
And here is the output when running cap deploy:
Switched to a new branch 'deploy'
command finished in 984ms
* Compressing /var/folders/w4/_6g_9lqd491_6cmhzb0kcmzh0000gn/T/20130608192600 to /var/folders/w4/_6g_9lqd491_6cmhzb0kcmzh0000gn/T/20130608192600.tar.gz
executing locally: tar czf 20130608192600.tar.gz 20130608192600
command finished in 53ms
servers: ["victorstan.com"]
** sftp upload /var/folders/w4/_6g_9lqd491_6cmhzb0kcmzh0000gn/T/20130608192600.tar.gz -> /tmp/20130608192600.tar.gz
[victorstan.com] /tmp/20130608192600.tar.gz
[victorstan.com] done
* sftp upload complete
* executing "cd /srv/www/dinner/releases && tar xzf /tmp/20130608192600.tar.gz && rm /tmp/20130608192600.tar.gz"
servers: ["victorstan.com"]
[victorstan.com] executing command
command finished in 467ms
* 2013-06-08 15:26:05 executing `deploy:finalize_update'
triggering before callbacks for `deploy:finalize_update'
* 2013-06-08 15:26:05 executing `bundle:install'
* executing "cd /srv/www/dinner/releases/20130608192600 && bundle install --gemfile /srv/www/dinner/releases/20130608192600/Gemfile --path /srv/www/dinner/shared/bundle --deployment --quiet --without development test"
servers: ["victorstan.com"]
[victorstan.com] executing command
** [out :: victorstan.com] ERROR: Gem bundler is not installed, run `gem install bundler` first.
command finished in 598ms
*** [deploy:update_code] rolling back
* executing "rm -rf /srv/www/dinner/releases/20130608192600; true"
servers: ["victorstan.com"]
[victorstan.com] executing command
command finished in 513ms
failed: "rvm_path=$HOME/.rvm/ $HOME/.rvm/bin/rvm-shell 'ruby-2.0.0-p195#dinner' -c 'cd /srv/www/dinner/releases/20130608192600 && bundle install --gemfile /srv/www/dinner/releases/20130608192600/Gemfile --path /srv/www/dinner/shared/bundle --deployment --quiet --without development test'" on victorstan.com

Answer 1

is ruby-2.0.0-p195#dinner installed / created on the server?
you can ensure it is with adding:
before 'deploy:setup', 'rvm:install_ruby'
more details on using rvm-capistrano can be found here: https://github.com/wayneeseguin/rvm-capistrano#readme

Answer 2

I have read some more examples on setting up deploy script and i've re-arranged the order of elements of my deploy script, as well as ena
set :application, "dinner"
set :domain, "victorstan.com"
set :repository, "ssh://#{domain}/~/#{application}.git"
set :use_sudo, false
set :user, "victorstan" # The server's user for deploys
set :scm, :git
set :scm_username, "passenger"
set :scm_passphrase, "*********" # The deploy user's password
set :deploy_to, "/srv/www/#{application}"
set :keep_releases, 2
set :branch, "master"
set :deploy_via, :copy # won't make cap prompt for password when deploying
set :scm_verbose, true
set :rvm_ruby_string, :local
set :rvm_type, :user
set :rvm_install_type, :stable
set :default_shell, :bash
set :whenever_command, "bundle exec whenever"
default_run_options[:pty] = true
# before 'deploy', 'rvm:install_ruby'
before 'deploy:setup', 'rvm:install_ruby'
require "rvm/capistrano"
require "bundler/capistrano"
require "whenever/capistrano"
role :web, domain # Your HTTP server, Apache/etc
role :app, domain # This may be the same as your `Web` server
role :db, domain, :primary => true # This is where Rails migrations will run
Some notable elements that have changed:
set :rvm_ruby_string set to :local instead of explicitly naming it: 'ruby-2.0.0-p195#dinner', not sure if this has any implication on the issue though, seems unlikely.
set :default_shell, :bash was another parameter I added.
And, as I mentioned, the ordering or the different DSL types might make a difference: set comes first, then before hooks, then require and then role after which comes the rest of the deploy script. Perhaps this can help someone in a similar situation.
Note, when I first tested this script I had before 'deploy', 'rvm:install_ruby' enabled, but I have since disabled it and the script continues to work...