Ensure your operating system is fully up-to-date:
NOTE: If kernel packages are updated here (e.g. upgrading el 6.6 to 6.7), you must reboot and ensure the new kernel and SELinux policy is loaded before upgrading Katello.
Update the Foreman and Katello release packages:
Clean the yum cache
On the Katello server, regenerate the certificates tarball for your Smart Proxy:
And copy them to your Smart Proxy:
The installer with the –upgrade flag will run the right database migrations for all component services, as well as adjusting the configuration to reflect what’s new in Katello 3.15
Congratulations! You have now successfully upgraded your Smart Proxy to 3.15 For a rundown of what was added, please see release notes.!
If for any reason, the above steps failed, please review /var/log/foreman-installer/foreman-proxy.log – if any of the “Upgrade step” tasks failed, you may try to run them manaully below to aid in troubleshooting.