Registering of client against SUSE Manager Proxy fails with "ERROR 404: Not Found"

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Environment

SUSE Manager 4.2 Server
SUSE Manager 4.2 Proxy

Situation

Registration of client against SUSE Manager Proxy using a bootstrap script fails with following error message:

https://susemanager.proxy.url/pub/repositories/sle/15/3/bootstrap/repodata/repomd.xml:
2023-02-16 17:09:50 ERROR 404: Not Found.
Bootstrap repo 'https://susemanager.proxy.url/pub/repositories/sle/15/3/bootstrap' does not exist.
Repository 'susemanager:bootstrap' not found by its alias, number, or URI.

Resolution

Check whether the /var/cache/rhn/ directory exists on top of SUSE Manager Proxy.

When there is no such directory, recreate the directory manually and set correct permissions and ownership:

mkdir /var/cache/rhn/
chmod -R 750 /var/cache/rhn/
chown -R wwwrun:root /var/cache/rhn/

restart spacewalk-proxy service:

spacewalk-proxy restart

and register the client once again using the bootstrap script.

Cause

Missing /var/cache/rhn/ directory on top of SUSE Manager Proxy. Following error message can be seen in apache2 error log (/var/log/apache2/error_log) within SUSE Manager Proxy system:

PermissionError: [Errno 13] Permission denied: '/var/cache/rhn'

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.