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Unable to delete any registered systems: Exception value: 'login failed (taskomatic_user)'

This document (000021457) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Manager 4.3

Situation

It is not possible to delete any registered systems from the SUMA Server, via the WebUI this fails with:

An error occurred during cleanup Server error, please check log files


In the "/var/log/cobbler/cobbler.log" the following error can be seen:

[Thread-3340] 2024-05-22T14:29:00 - INFO | Exception occurred: <class 'cobbler.cexceptions.CX'>
[Thread-3340] 2024-05-22T14:29:00 - INFO | Exception value: 'login failed (taskomatic_user)'
[Thread-3340] 2024-05-22T14:29:00 - INFO | Exception Info:
 File "/usr/lib/python3.6/site-packages/cobbler/remote.py", line 3768, in _dispatch return method_handle(*params)
 File "/usr/lib/python3.6/site-packages/cobbler/remote.py", line 3528, in login utils.die("login failed (%s)" % login_user)
 File "/usr/lib/python3.6/site-packages/cobbler/utils.py", line 102, in die raise CX(msg)

 

Resolution

Verify that the following lines are present in "/etc/cobbler/modules.conf":

[authentication]
module = authentication.spacewalk
hash_algorithm = sha3_512

 

Cause

Incorrect cobbler configuration.

Additional Information

Another issue happened due to same reason, the logged-in user is not able to check "Autoinstallation Profiles" via Web UI. 

The following errors can be seen in /var/log/rhn/rhn_web_ui.log

2025-07-17 16:20:10,243 [ajp-nio-0:0:0:0:0:0:0:1-8009-exec-10] ERROR com.redhat.rhn.manager.kickstart.cobbler.CobblerLoginCommand - XmlRpcFault while logging in.  most likely user doesn't have permissions.
redstone.xmlrpc.XmlRpcFault: <class 'cobbler.cexceptions.CX'>:'login failed (LOGGED_IN_USERNAME)'
...
...
2025-07-17 16:20:10,264 [ajp-nio-0:0:0:0:0:0:0:1-8009-exec-10] WARN  org.apache.struts.action.RequestProcessor - Unhandled Exception thrown: class com.redhat.rhn.manager.kickstart.cobbler.NoCobblerTokenException
2025-07-17 16:20:10,271 [ajp-nio-0:0:0:0:0:0:0:1-8009-exec-10] ERROR com.redhat.rhn.frontend.servlets.SessionFilter - Error during transaction. Rolling back

 

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:000021457
  • Creation Date: 28-May-2024
  • Modified Date:14-Aug-2025
    • SUSE Manager Server

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