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== Redmine upgrade
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Redmine - project management software
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Copyright (C) 2006-2015  Jean-Philippe Lang
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http://www.redmine.org/
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== Upgrading
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1. Uncompress the program archive in a new directory
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2. Copy your database settings (RAILS_ROOT/config/database.yml)
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   and your configuration file (RAILS_ROOT/config/configuration.yml)
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   into the new config directory
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   Note: before Redmine 1.2, SMTP configuration was stored in
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   config/email.yml. It should now be stored in config/configuration.yml. 
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3. Copy the RAILS_ROOT/files directory content into your new installation
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   This directory contains all the attached files.
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4. Copy the folders of the installed plugins and themes into new installation
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   Plugins must be stored in the [redmine_root]/plugins directory
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   Themes must be stored in the [redmine_root]/public/themes directory
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   WARNING: plugins from your previous Redmine version may not be compatible
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   with the Redmine version you're upgrading to.
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5. Install the required gems by running:
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     bundle install --without development test
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   If ImageMagick is not installed on your system, you should skip the installation
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   of the rmagick gem using:
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     bundle install --without development test rmagick
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   Only the gems that are needed by the adapters you've specified in your database
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   configuration file are actually installed (eg. if your config/database.yml
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   uses the 'mysql2' adapter, then only the mysql2 gem will be installed). Don't
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   forget to re-run `bundle install` when you change config/database.yml for using
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   other database adapters.
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   If you need to load some gems that are not required by Redmine core (eg. fcgi),
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   you can create a file named Gemfile.local at the root of your redmine directory.
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   It will be loaded automatically when running `bundle install`.
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6. Generate a session store secret
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   If you're upgrading from Redmine 2.x or below, remove the following file
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   if it exists: config/initializers/secret_token.rb
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   Then generate a new secret by running the following command under the
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   application directory:
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     bundle exec rake generate_secret_token
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   Alternatively, you can store this secret in config/secrets.yml:
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   http://guides.rubyonrails.org/upgrading_ruby_on_rails.html#config-secrets-yml
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   DO NOT REPLACE OR EDIT ANY OTHER FILES.
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7. Migrate your database
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   If you are upgrading to Rails 2.3.14 as part of this migration, you
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   need to upgrade the plugin migrations before running the plugin migrations
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   using:
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     bundle exec rake db:migrate:upgrade_plugin_migrations RAILS_ENV="production"
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   Please make a backup before doing this! Under the new application
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   directory run:
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     bundle exec rake db:migrate RAILS_ENV="production"
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   If you have installed any plugins, you should also run their database
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   migrations using:
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     bundle exec rake db:migrate_plugins RAILS_ENV="production"
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8. Clear the cache and the existing sessions by running:
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     bundle exec rake tmp:cache:clear tmp:sessions:clear
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9. Restart the application server (e.g. mongrel, thin, passenger)
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10. Finally go to "Administration -> Roles & permissions" to check/set permissions
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    for new features, if any
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== References
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* http://www.redmine.org/wiki/redmine/RedmineUpgrade
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