Administrator:
- login: admin
 - password: admin
 
If you get this error Fail to download [http://localhost:9000/batch_bootstrap/properties?dryRun=false], edit the web/WEB-INF/config/environment.rb file of sonarqube and add this at the beginning of the file :
  ENV['GEM_PATH']=''
This is an issue with ruby install version in conflic with the one used by Sonar.