SUSE Manager/RPM Error registering
From MicroFocusInternationalWiki
During registration with a bootstrap script or manuel, the following error will be displayed:
* registering rhn-plugin: RPM error. The message was: Could not determine what version of Red Hat Linux you are running. If you get this error, try running rpm --rebuilddb *** Error: Registering the system failed.
The most likely cause of this problem is a wrong /etc/products.d/baseproduct. Check if the link is pointing to the correct file. By default this should be /etc/products.d/SUSE_SLES.prod. If the link is correct, check if the content of the file is pointing to the correct OS version. Before copying information from a comparable system, check what happened on this system that could cause this problem.