this is a quick guide based on this, it only differs on some small apache configs and rails stuff, so i’m gonna write only the different steps
before running rake…you should do a
$ sudo gem install rubygems-update
$ sudo gem update --system
due to some problems with apache confing i moved the whole redmine directory from /var/www to /opt/redmine
$ sudo ln -s /opt/redmine/public /var/www/redmine
and did a quick mod in /etc/apache2/sites-enabled/000-default adding this before the VirtualHost
...
RailsBaseUri /redmine
</VirtualHost>
restart apache and that’s it.