RedmineとRuby、Rails、Rubygemsバージョンのサポート対応表

The required Ruby and Ruby on Rails versions for a given Redmine version is:

Redmine versionSupported Ruby versionsRequired Rails versionSupported Rack versionsSupported RubyGems versions
current trunk ruby 1.8.7, 1.9.2, 1.9.3 Rails 2.3.14 Rack 1.1.x RubyGems <= 1.8
1.3.x ruby 1.8.6, 1.8.7 Rails 2.3.14 Rack 1.1.x RubyGems <= 1.7
1.2.x ruby 1.8.6, 1.8.7 Rails 2.3.11 Rack 1.1.x RubyGems <= 1.6
1.1.x ruby 1.8.6, 1.8.7 Rails 2.3.5 Rack 1.0.1 RubyGems <= 1.4
1.0.x ruby 1.8.6, 1.8.7 Rails 2.3.5 Rack 1.0.1 RubyGems <= 1.4
0.9.x ruby 1.8.6, 1.8.7 Rails 2.3.5 Rack 1.0.1 RubyGems <= 1.4
0.8.x ruby 1.8.6, 1.8.7 Rails 2.1.2  

 

 

ちなみに、Redmineの管理者アカウントの初期設定は、admin/admin

9. Use default administrator account to log in:
login: admin
password: admin

参考

http://www.redmine.org/projects/redmine/wiki/RedmineInstall