[Spacewalk-list] How do you unregister a host from RHN?

[Will Cladek]

Justin Sherrill wrote:
> To disable the rhn plugin you can simply edit
> 
> /etc/yum/pluginconf.d/rhnplugin.conf
> 
> and change
> enabled = 1
> to
> enabled = 0

This seems to work.

Jon Stanley wrote:
> In order to make the system think that it's no longer registered to
> RHN you can delete /etc/sysconfig/rhn/systemid

This is what I was having a problem with originally.  When I delete the systemid file, I get the following error when I try to run yum:

Loading "rhnplugin" plugin
Loading "fastestmirror" 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 163, in getOptionsConfig
    disabled_plugins=self.optparser._splitArg(opts.disableplugins))
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 183, in _getConfig
    self.plugins.run('init')
  File "/usr/lib/python2.4/site-packages/yum/plugins.py", line 169, in run
    func(conduitcls(self, self.base, conf, **kwargs))
  File "rhnplugin.py", line 126, in init_hook
  File "rhnChannel.py", line 86, in getChannelDetails
  File "rhnChannel.py", line 108, in getChannels
  File "rhnserver.py", line 50, in __call__
  File "rpcServer.py", line 194, in doCall
  File "/usr/lib64/python2.4/xmlrpclib.py", line 1096, in __call__
    return self.__send(self.__name, args)
  File "rpcServer.py", line 38, in _request1
  File "/usr/lib/python2.4/site-packages/rhn/rpclib.py", line 315, in _request
    request = self._req_body(params, methodname)
  File "/usr/lib/python2.4/site-packages/rhn/rpclib.py", line 222, in _req_body
    return xmlrpclib.dumps(params, methodname, encoding=self._encoding)
  File "/usr/lib64/python2.4/xmlrpclib.py", line 1029, in dumps
    data = m.dumps(params)
  File "/usr/lib64/python2.4/xmlrpclib.py", line 603, in dumps
    dump(v, write)
  File "/usr/lib64/python2.4/xmlrpclib.py", line 615, in __dump
    f(self, value, write)
  File "/usr/lib64/python2.4/xmlrpclib.py", line 619, in dump_nil
    raise TypeError, "cannot marshal None unless allow_none is enabled"
TypeError: cannot marshal None unless allow_none is enabled