我试图通过以下文档在我的 RedHat 服务器上安装 Mongo 服务器：http ://docs.mongodb.org/manual/tutorial/install-mongodb-on-red-hat-centos-or-fedora-linux/
这是我的环境信息：
[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
当我尝试安装 Mongo 服务器时收到此消息：
[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
我是 Linux 新手，我不太确定这是否是由 yum 配置错误引起的。有人可以帮我离开这里吗？