Red hat / Fedora / CentOS Yum Repo is Listed More Than Once

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Q. Why does my yum command fail with an error that a repo is listed more than once under Fedora / RHEL / CentOS Linux? This error occurs when I type yum clean command

Loading “rhnplugin” plugin
Loading “security” plugin

Repository xen-repo is listed more than once in the configuration

How do I fix this problem?


A. The above error is caused by a known bug in version 0.5.3-6.el5_2.6 of the package yum-rhn-plugin. The bug is triggered when third party (non-RHN) repositories are configured with Yum.

The recommended workaround is to downgrade the yum-rhn-plugin package to a previous version. To do this, download the old version of the package from the Internet, and then run:
# rpm -Uvh --oldpackage yum-rhn-plugin-0.5.2-3.el5.noarch.rpm

Posted by: Vivek Gite

The author is the creator of nixCraft and a seasoned sysadmin and a trainer for the Linux operating system/Unix shell scripting. He has worked with global clients and in various industries, including IT, education, defense and space research, and the nonprofit sector. Follow him on Twitter, Facebook, Google+.

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2 comment

  1. it is showing error

    [[email protected] rhn]# yum-rhn-plugin package.
-bash: yum-rhn-plugin: command not found
[[email protected] rhn]# yum install yum-rhn-plugin
Loading "security" plugin
Loading "installonlyn" plugin
Loading "rhnplugin" plugin
Traceback (most recent call last):
  File "/usr/bin/yum", line 29, in ?
    yummain.main(sys.argv[1:])
  File "/usr/share/yum-cli/yummain.py", line 85, in main
    base.getOptionsConfig(args)
  File "/usr/share/yum-cli/cli.py", line 199, in getOptionsConfig
    errorlevel=opts.errorlevel)
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 134, in doConfigSetup
    self.plugins.run('init')
  File "/usr/lib/python2.4/site-packages/yum/plugins.py", line 153, in run
    func(conduitcls(self, self.base, conf, **kwargs))
  File "/usr/lib/yum-plugins/rhnplugin.py", line 76, in init_hook
    login_info = up2dateAuth.getLoginInfo()
  File "/usr/share/rhn/up2date_client/up2dateAuth.py", line 139, in getLoginInfo
    login()
  File "/usr/share/rhn/up2date_client/up2dateAuth.py", line 80, in login
    server = rhnserver.RhnServer()
  File "/usr/share/rhn/up2date_client/rhnserver.py", line 147, in __init__
    self._server = rpcServer.getServer()
  File "/usr/share/rhn/up2date_client/rpcServer.py", line 168, in getServer
    raise up2dateErrors.SSLCertificateFileNotFound(msg)
up2date_client.up2dateErrors.SSLCertificateFileNotFound: ERROR: can not find RHNS CA file: /usr/share/rhn/RHNS-CORP-CA-CERT
[[email protected] rhn]# rpm -Uvh --oldpackage yum-rhn-plugin-0.5.2-3.el5.noarch.rpm
error: open of yum-rhn-plugin-0.5.2-3.el5.noarch.rpm failed: No such file or directory
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