Installing Redmine on Ubuntu 11.10

First let's update the packages list and upgrade (optional). 

   
sudo apt-get update
sudo apt-get upgrade

Now we need to install Apache2 Web Server, Mysql (LAMP):

   
sudo tasksel install lamp-server
sudo apt-get install libapache2-mod-passenger

Installing the latest Redmine (when I wrote this, it was 1.3.2), this will also install ruby on ubuntu:

   
sudo add-apt-repository ppa:ondrej/redmine
sudo apt-get update
sudo apt-get install redmine redmine-mysql

Installing rmagick:

   
sudo apt-get install imagemagick libmagickcore-dev libmagickwand-dev
sudo gem install rails
sudo gem install rmagick

Let's link redmine folder to apache:

   
sudo ln -s /usr/share/redmine/public /var/www/redmine

We need to tell Passenger to run on "www-data" user:
   
sudo vim /etc/apache2/mods-available/passenger.conf

add:

   
PassengerDefaultUser www-data

You'll also need to configure the /var/www/redmine location in /etc/apache2/sites-available/default by adding:
   
sudo vim /etc/apache2/sites-available/default

add:
   
<Directory /var/www/redmine>
    RailsBaseURI /redmine
    PassengerResolveSymlinksInDocumentRoot on
</Directory>


Enable passenger:
   
sudo a2enmod passenger


Restart apache2

   
sudo service apache2 restart

Know you should be able to access Redmine at: http://server.ip.address/redmine and login as:

user: admin
password: admin


Thank you...

References:
http://www.redmine.org/projects/redmine/wiki/HowTo_Install_Redmine_in_Ubuntu
http://www.redmine.org/projects/redmine/wiki/RedmineInstall?version=146
http://superuser.com/questions/163818/how-to-install-rmagick-on-ubuntu-10-04