Hello *, due to CentOS 8 being EOL to the end of this year I did some investigation on how to properly update and Openstack environment running CentOS 8 and Openstack Ussuri. If you just want to update the operation system it seems like there is no problem at all. Just do a and Since openstack has proven its complexity i can't imagine that it is that simple if you are running an openstack environment on it :D Any chance to update to CentOS stream without breaking the environment? If not I don't see any restrictions in updating both, the openstack version and the operating system version. But may you tell me if there is an migration path to successfully update from CentOS 8 to CentOS stream? Do i have to update CentOS before updating Openstack or wise versa? Do you have any information on how to update? If this was already discussed please send me a link. I found the following on the internet: http://lists.openstack.org/pipermail/openstack-discuss/2021-February/0206... That was already useful but didn't answered my questions entirely. Best regards -- Benjamin Zapiec <benjamin.zapiec(a)gonicus.de&gt; (System Engineer) * GONICUS GmbH * Moehnestrasse 55 (Kaiserhaus) * D-59755 Arnsberg * Tel.: +49 2932 916-0 * Fax: +49 2932 916-245 * http://www.GONICUS.de * Sitz der Gesellschaft: Moehnestrasse 55 * D-59755 Arnsberg * Geschaeftsfuehrer: Rainer Luelsdorf, Alfred Schroeder * Vorsitzender des Beirats: Juergen Michels * Amtsgericht Arnsberg * HRB 1968 Wir erfüllen unsere Informationspflichten zum Datenschutz gem. der Artikel 13 und 14 DS-GVO durch Veröffentlichung auf unserer Internetseite unter: https://www.gonicus.de/datenschutz oder durch Zusendung auf Ihre formlose Anfrage.