This post just saved me a hours of work, thanks 
http://www.d-man.org/news/2009/01/06/91/
It outlines how to remove an old version of ruby and install the version you need.
Install Ruby on Rails – Use http://www.how-to-linux.com/2008/12/how-to-install-ruby-on-rails-on-centos-52/
Create a database for Tracks
mysql -u root -p
create database tracks;
exit
Download Tracks from http://bsag.bingodisk.com/public/files/tracks-current.zip
Unzip the Tracks archive
unzip tracks-current.zip
Put tracks into /opt
mv tracks-1.7 /opt
Edit /opt/tracks-1.7/config/database.yml
vi /opt/tracks-1.7/config/database.yml
Add you mysql server details
production:
adapter: mysql
database: tracks
hosts: localhost
username: root
password: neveruserrootpassword
Change a config in site.yml
vi /opt/tracks-1.7/config/site.yml
Add something unique in the salt parameter.
Add the Tracks data to the database
rake db:migrate RAILS_ENV=production
If you get this error;
no such file to load — mysql
Download ruby-mysql – http://rubyforge.org/frs/?group_id=4550
tar mysql-ruby-2.7.tar.gz
cd mysql-ruby-2.7
ruby extconf.rb –with-mysql-config
make
make install
Now run the server
script/server -e production
Goto http://localhost:3000
This is a combination of all my instructions on how to setup redmine on Centos. Its still a work in progress so please note any problems in comments.
yum install ruby ruby-devel ruby-libs ruby-irb ruby-rdoc ruby-mysql
Download and install ruby gems
wget http://rubyforge.org/frs/download.php/45905/rubygems-1.3.1.tgz
tar xvf rubygems-1.3.1.tgz
cd rubygems-1.3.1
ruby setup.rb
Install Rails
gem install rails
Install Redmine
go to /opt
cd /opt
Get latest source code from http://www.redmine.org
unzip redmineXXXX.zip
Create a Database for Redmine
mysql -u root -p
create database redmine character set utf8;
exit
Configure the Redmine database connection settings
Copy config/database.yml.example to config/database.yml and edit this file in order to configure your database settings for “production” environment.
cp /opt/redmine-0.7.3/config/database.yml.example /opt/redmine-0.7.3/config/database.yml
edit database.yml
production:
adapter: mysql
database: redmine
host: localhost
username: yourusername
password: yourpassword
socket: /var/lib/mysql/mysql.sock
Run the following command in /opt/redmine-0.7.3/
rake db:migrate RAILS_ENV=”production”
If you get this error message: “cannot connect to mysql: No such file or directory – /tmp/mysql.sock”, You forgot to specify the socket location in config/database.yml – see above.
This will create tables and an administrator account.
Run this command to load default data into db.
rake redmine:load_default_data RAILS_ENV=”production”
Test the installation by running WEBrick web server:
ruby script/server -e production
Once WEBrick has started, point your browser to http://localhost:3000/. You should now see the application welcome page.
Use default administrator account to log in:
login: admin
password: admin
You can go to Admin & Settings to modify application settings.
You must install Rmagick as well for the nice Gant charts.
yum install ImageMagick
yum install ImageMagick-devel
gem install rmagick -v 1.15.13 –no-rdoc –no-ri
Create a repository folder.
mkdir /svn
Change the owner and group to root.apache
chown -R root.apache /svn
Change the permissions
chmod 0750 /svn
Configure subversion to be browsed, goto /etc/httpd/conf.d
vi subversion.conf
Insert the following at the bottom
<Location /svn>
DAV svn
SVNParentPath /svn
SVNListParentPath on
</Location>
If you get ‘Could not open the requested SVN filesystem’ when you try to browse to your repository http://localhost/svn then you have used SVNPath instead of SVNParentPath, just update your subversion.conf and that should fix this issue. This could also be a permission error related to the file permissions of your svn repository, make sure they are readable by apache.
Run the following command to test that it works
ruby reposman.rb -redmine localhost:3000 -svn-dir /svn -owner apache -url http://localhost/svn/ -verbose
If it does not, and fails with this error
/usr/lib/ruby/1.8/rdoc/ri/ri_options.rb:53: uninitialized constant RI::Paths (NameError)
from /usr/lib/ruby/1.8/rdoc/usage.rb:72:in ‘require’
from /usr/lib/ruby/1.8/rdoc/usage.rb:72
from reposman.rb:59:in ‘require’
from reposman.rb:59
Then you need to edit the reposman.rb file and add require statement require ‘rdoc/ri/ri_paths’ above all the other require statements.
require ‘rdoc/ri/ri_paths’
You need to add this to your crontab
5 * * * * ruby /opt/redmine-0.8.0_RC1/extra/svn/reposman.rb -redmine localhost:3000 -svn-dir /svn -owner apache -url http://localhost/svn/ -verbose >> /var/log/reposman.log
I found the instructions at http://www.redmine.org/wiki/redmine/Repositories_access_control_with_apache_mod_dav_svn_and_mod_perl did not work for me. I managed to get it working doing the following;
You do not need to but you can set subversion 1.54 by installing the RPMForge repos, follow these instructions – http://wiki.centos.org/AdditionalResources/Repositories/RPMForge
Get the necessary packages
yum install mod_dav_svn mod_perl perl-Apache-DBI perl-Digest-SHA1 perl-DBD-mysql subversion
Copy Redmine.pm from /opt/redmine-0.7.3/extra/svn/Redmine.pm to /usr/lib/perl5/vendor_perl/5.8.8/Apache/
cp /opt/redmine-0.7.3/extra/svn/Redmine.pm /usr/lib/perl5/vendor_perl/5.8.8/Apache/
create a file in /etc/httpd/conf.d/ called redmine.conf and put this in it.
PerlLoadModule Apache::Redmine
<Location /svn>
DAV svn
SVNParentPath “/svn”
AuthType Basic
AuthName redmine
Require valid-user
PerlAccessHandler Apache::Authn::Redmine::access_handler
PerlAuthenHandler Apache::Authn::Redmine::authen_handler
## for mysql
RedmineDSN “DBI:mysql:database=da;host=my.db.server”
## for postgres
# RedmineDSN “DBI:Pg:dbname=databasename;host=my.db.server”
RedmineDbUser “redmine”
RedmineDbPass “password”
</Location>
# a private location in read only mode to allow Redmine browsing
<Location /svn-private>
DAV svn
SVNParentPath “/svn”
Order deny,allow
Deny from all
# only allow reading orders
<Limit GET PROPFIND OPTIONS REPORT>
Allow from redmine.server.ip
</Limit>
</Location>
The error I received from using the Redmine-0.7.X was;
‘Invalid command ‘RedmineDSN’, perhaps misspelled or defined by a module not included in the server configuration’
This is related to not copying Redmine.pm to /usr/lib/perl5/vendor_perl/5.8.8/Apache
Taken from http://www.redmine.org/wiki/redmine/HowTo_run_Redmine_with_a_Mongrel_cluster
Install Mongrel
gem install mongrel mongrel_cluster daemons
Configure the Mongrel Cluster for redmine.
cd /opt/redmine
mongrel_rails cluster::configure -e production -p 8000 -N 3 -c /opt/redmine-0.8.0_RC1 -user apache -group apache
Start the Cluster
mongrel_rails cluster::start
Configure apache as the load balancer
create a new config file in /etc/httpd/conf.d
vi /etc/httpd/conf.d/redmine.conf
paste this into the file
<VirtualHost *>
ServerName your.domain.name
DocumentRoot /opt/redmine-0.8.0_RC1
<Directory “/opt/redmine-0.8.0_RC1/public”>
Options FollowSymLinks
AllowOverride None
Order allow,deny
Allow from all
</Directory>
<Proxy balancer://redmine_cluster>
Order allow,deny
Allow from all
BalancerMember http://127.0.0.1:8000
BalancerMember http://127.0.0.1:8001
BalancerMember http://127.0.0.1:8002
</Proxy>
RewriteEngine On
RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-f
RewriteRule ^/(.*)$ balancer://redmine_cluster%{REQUEST_URI} [P,QSA,L]
</VirtualHost>
And restart apache
service httpd restart
