Why do I receive a "cannot marshal None unless allow_none is enabled" error message when trying to upload configuration files to Red Hat Satellite 5 using 'rhncfg-manager'?

Solution Verified - Updated -

Issue

  • After updating rhncfg-management package to version 5.10.55-8 I no longer can upload configuration files to Red Hat Satellite 5 using rhncfg-manager command:
# rhncfg-manager add -ctest-channel /etc/yum.conf 
Using server name sat5.example.com
Pushing to channel test-channel:
XML-RPC error while talking to http://sat5.example.com/CONFIG-MANAGEMENT-TOOL: cannot marshal None unless allow_none is enabled
#

Environment

  • Red Hat Satellite 5.
  • Red Hat Enterprise Linux.
  • rhncfg-management package version 5.10.55-8.
  • Configuration files with no SELinux context.

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