title: Get error when I install MongoDB on RedHat
body: <p>I was trying to install the Mongo Server on my RedHat server via following this document: <a href="http://docs.mongodb.org/manual/tutorial/install-mongodb-on-red-hat-centos-or-fedora-linux/" rel="nofollow">http://docs.mongodb.org/manual/tutorial/install-mongodb-on-red-hat-centos-or-fedora-linux/</a></p>
  
  <p>Here is my environment information:</p>
  
  <pre><code>[root@localhost tmp]# uname -a
  Linux localhost.localdomain 2.6.18-164.el5PAE #1 SMP Tue Aug 18 15:59:11 EDT 2009 i686 i686 i386 GNU/Linux
  [root@localhost yum.repos.d]# ll /etc/yum.repos.d/
  -rw-r--r-- 1 root   root    115 Apr  3 17:19 10gen.repo
  -rw-r--r-- 1 root   root   1426 May 24  2009 CentOS-Base.repo
  -rw-r--r-- 1 root   root    954 Aug 12  2010 epel.repo
  -rw-r--r-- 1 root   root   1054 Aug 12  2010 epel-testing.repo
  -rw-r--r-- 1 root   root    684 Jan 18  2007 mirrors-rpmforge
  -rw-r--r-- 1 root   root   1644 Apr 12  2012 rhel-debuginfo.repo
  -rw-r--r-- 1 root   root    428 Jan 18  2007 rpmforge.repo
  [root@localhost yum.repos.d]# cat 10gen.repo
  [10gen]
  name=10gen Repository
  baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/i686
  gpgcheck=0
  enabled=1
  </code></pre>
  
  <p>And I get this message when I was trying to install Mongo server:</p>
  
  <pre><code>[root@localhost yum.repos.d]# yum install mongo-10gen-server mongo-10gen
  Loaded plugins: fastestmirror
  Repository base is listed more than once in the configuration
  Repository update is listed more than once in the configuration
  Repository addons is listed more than once in the configuration
  Repository extras is listed more than once in the configuration
  Repository centosplus is listed more than once in the configuration
  Repository contrib is listed more than once in the configuration
  Repository testing is listed more than once in the configuration
  Loading mirror speeds from cached hostfile
   * epel: mirrors.ustc.edu.cn
   * rpmforge: fr2.rpmfind.net
  Setting up Install Process
  No package mongo-10gen-server available.
  No package mongo-10gen available.
  Nothing to do
  </code></pre>
  
  <p>I'm new to Linux, and I'm not quite sure if this was caused by wrong configuration of yum. Can someone help me out of here?</p>