Before you start Redmine for the first time, make sure you followed the instructions
from http://www.redmine.org/projects/redmine/wiki/RedmineInstall

As you might use only one of the possible databases, at least one of the packages
rubygrem-sqlite3, rubygrem-mysql, or rubygem-pg should be installed.

For running the Bundler, specify the bundles you want to deactivate.
In the directory /srv/redmine, please run

bundle install --without development test mysql postgresql
  if you plan to use SQLite3

bundle install --without development test mysql sqlite3
  if you plan to use PostgreSQL

bundle install --without development test postgresql sqlite3
  if you plan to use MySQL

Enjoy Redmine!

Gerrit Beine
January 2013
