SOGO installation on RHEL 6.2 (CentOS 6.2) x86_64

1. Update your OS installation and install necessary packages if they are not already installed.

   yum -y update
   yum -y install wget
   

2. Download and install EPEL and RPMForge repositories

   wget http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-5.noarch.rpm
   rpm -ivh epel-release-6-5.noarch.rpm
   wget http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm
   rpm -ivh rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm
   

3. Create a new yum configuration file (such as /etc/yum.repos.d/SOGo.repo) with the following content:

   [sogo-rhel6]
   name=Inverse SOGo Repository 
   baseurl=http://inverse.ca/downloads/SOGo/RHEL6/$basearch
   gpgcheck=0
   

4. Activate the RPMForge extras repository by modifying /etc/yum.repos.d/rpmforge.repo (enabled = 1)
5. Exclude the gnustep packages in EPEL in order to use the packages available on Inverse SOGo Repository. Simply add the following line to the EPEL repo definition in [epel] section:

   exclude=gnustep-*

6. Install sogo

   yum -y install sogo