I recently purchased RHEL v6 so I was able to get entitlements on my recently upgraded RHEL v4 machine to v5 (v6 is down the road currently).
However, in the web interface I run the updates, it fails as it just shows pending with the stopwatch icon. If I run rhn_check the stop watch icon disappears and goes back to not installed. If I login using rhn_register it says the system is already setup for updates but it won't update. After doing an update from the website, I ran rhn_check -vv and got this as my results:
[root@intranet ~]# rhn_check -vv
D: check_action {'action': "<?xml version='1.0'?>\n<methodCall>\n<methodName>errata.update</methodName>\n<params>\n<param>\n<value><array><data>\n<value><int>11632</int></value>\n</data></array></value>\n</param>\n</params>\n</methodCall>\n", 'version': 2, 'id': 203338917}
updating login info
logging into up2date server
successfully retrieved authentication token from up2date server
D: logininfo: {'X-RHN-Server-Id': xxx, 'X-RHN-Auth-Server-Time': '1308081188.41', 'X-RHN-Auth': 'xxx', 'X-RHN-Auth-Channels': [['rhel-i386-server-5', '20110613025406', '1', '1']], 'X-RHN-Auth-User-Id': '', 'X-RHN-Auth-Expire-Offset': '3600.0'}
D: handle_action {'action': "<?xml version='1.0'?>\n<methodCall>\n<methodName>errata.update</methodName>\n<params>\n<param>\n<value><array><data>\n<value><int>11632</int></value>\n</data></array></value>\n</param>\n</params>\n</methodCall>\n", 'version': 2, 'id': 203338917}
D: handle_action actionid = 203338917, version = 2
D: do_call errata.update ([11632],)
D: Called update [['perl', 0, 0, '']]
Loading "rhnplugin" plugin
Loading "installonlyn" plugin
D: Downloading Packages:
warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID 37017186
D: Sending back response ((6,), 'Error while executing packages action: Refusing to automatically import keys when running unattended.\nUse "-y" to override.', {})
D: do_call packages.checkNeedUpdate ('rhnsd=1',)
D: local action status: (0, 'rpm database not modified since last update (or package list recently updated)', {})