title: http://mirror.centos.org/centos/5/os/i386/repodata/repomd.xml: [Errno 14] HTTP Error 404: Not Found
body: <p>in my centos 5.9 I tried to <code>yum check-update</code></p>
  
  <p>but I faced this error <code>http://mirror.centos.org/centos/5/os/i386/repodata/repomd.xml: [Errno 14] HTTP Error 404: Not Found
  </code></p>
  
  <p>please help me</p>
  
  <p>Thank you in advance.</p>