Description of problem:
The rhn-migrate-classic-to-rhsm fails when passing the --serverurl option with a valid value to override the undesired server hostname:port/prefix currently set in the rhsm.conf.


Version-Release number of selected component (if applicable):
[root@jsefler-6 ~]# rpm -q subscription-manager-migration
subscription-manager-migration-1.12.10-1.el6.x86_64


How reproducible:


Steps to Reproduce:
Demonstrate that registration to the target serverurl actually works...
[root@jsefler-6 ~]# subscription-manager register --serverurl=subscription.rhn.stage.redhat.com:443/subscription
Username: qa
Password: 
The system has been registered with ID: de5f3967-bd89-42bf-b55e-33d16c0dad59 
[root@jsefler-6 ~]# subscription-manager unregister
System has been unregistered.
[root@jsefler-6 ~]# 

^Success as expected^ demonstrates that --serverurl=subscription.rhn.stage.redhat.com:443/subscription is good.
Now let's register classically to RHN and then try to migrate to the same serverurl with the same credentials, but this time it will fail.  It appears to fail because the --serverurl is not overriding the corresponding values in the rhsm.conf.


[root@jsefler-6 ~]# rhnreg_ks --serverUrl=https://xmlrpc.rhn.code.stage.redhat.com/XMLRPC --username=qa --password=redhatqa --norhnsd --nohardware --nopackages --novirtinfo
[root@jsefler-6 ~]# rhn-channel --list
rhel-x86_64-server-6
[root@jsefler-6 ~]# subscription-manager config --server.hostname=foo.redhat.com --server.port=123 --server.prefix=/bar
[root@jsefler-6 ~]# rhn-migrate-classic-to-rhsm --serverurl=subscription.rhn.stage.redhat.com:443/subscription
Red Hat username: qa
Red Hat password: 
Subscription Service username: qa
Subscription Service password: 
Unable to connect to certificate server: [Errno -2] Name or service not known.  See /var/log/rhsm/rhsm.log for more details.
[root@jsefler-6 ~]# 



Actual results:
above

Expected results:
Expected the serverurl that I specified on the command line to be used during migration to override the undesirable values configured in rhsm.conf. 



Additional info:

[root@jsefler-6 ~]# tail -f /var/log/rhsm/rhsm.log
2014-08-18 13:03:31,924 [DEBUG] rhn-migrate-classic-to-rhsm @profile.py:97 - Loading current RPM profile.
2014-08-18 13:03:32,232 [INFO] rhn-migrate-classic-to-rhsm @connection.py:648 - Using basic authentication as: qa
2014-08-18 13:03:32,233 [INFO] rhn-migrate-classic-to-rhsm @connection.py:670 - Connection Built: host: foo.redhat.com, port: 123, handler: /bar
2014-08-18 13:03:32,233 [DEBUG] rhn-migrate-classic-to-rhsm @identity.py:131 - Loading consumer info from identity certificates.
2014-08-18 13:03:32,233 [ERROR] rhn-migrate-classic-to-rhsm @identity.py:143 - [Errno 2] No such file or directory: '/etc/pki/consumer/key.pem'
Traceback (most recent call last):
  File "/usr/share/rhsm/subscription_manager/identity.py", line 135, in reload
    self.consumer = self._get_consumer_identity()
  File "/usr/share/rhsm/subscription_manager/identity.py", line 151, in _get_consumer_identity
    return ConsumerIdentity.read()
  File "/usr/share/rhsm/subscription_manager/identity.py", line 48, in read
    f = open(cls.keypath())
IOError: [Errno 2] No such file or directory: '/etc/pki/consumer/key.pem'
2014-08-18 13:03:32,234 [INFO] rhn-migrate-classic-to-rhsm @identity.py:144 - Error reading consumer identity cert
2014-08-18 13:03:32,236 [DEBUG] rhn-migrate-classic-to-rhsm @connection.py:414 - Loaded CA certificates from /etc/rhsm/ca/: jsefler-f14-7candlepin.pem, jsefler-f14-candlepin.pem, candlepin-stage.pem, redhat-uep.pem, candlepin-local.pem
2014-08-18 13:03:32,237 [DEBUG] rhn-migrate-classic-to-rhsm @connection.py:446 - Making request: GET /bar/users/qa%40redhat.com/owners
2014-08-18 13:03:32,561 [ERROR] rhn-migrate-classic-to-rhsm @migrate.py:297 - [Errno -2] Name or service not known
2014-08-18 13:03:32,566 [ERROR] rhn-migrate-classic-to-rhsm @migrate.py:298 - Traceback (most recent call last):
  File "/usr/share/rhsm/subscription_manager/migrate/migrate.py", line 292, in check_ok_to_proceed
    self.cp.getOwnerList(username)
  File "/usr/lib64/python2.6/site-packages/rhsm/connection.py", line 911, in getOwnerList
    return self.conn.request_get(method)
  File "/usr/lib64/python2.6/site-packages/rhsm/connection.py", line 550, in request_get
    return self._request("GET", method)
  File "/usr/lib64/python2.6/site-packages/rhsm/connection.py", line 453, in _request
    conn.request(request_type, handler, body=body, headers=headers)
  File "/usr/lib64/python2.6/httplib.py", line 914, in request
    self._send_request(method, url, body, headers)
  File "/usr/lib64/python2.6/httplib.py", line 951, in _send_request
    self.endheaders()
  File "/usr/lib64/python2.6/httplib.py", line 908, in endheaders
    self._send_output()
  File "/usr/lib64/python2.6/httplib.py", line 780, in _send_output
    self.send(msg)
  File "/usr/lib64/python2.6/httplib.py", line 739, in send
    self.connect()
  File "/usr/lib64/python2.6/site-packages/M2Crypto/httpslib.py", line 51, in connect
    socket.getaddrinfo(self.host, self.port, 0, socket.SOCK_STREAM):
gaierror: [Errno -2] Name or service not known