[ovirt-users]Váltás a Centos Stream 9-re.

Hello! We have a oVirt 4.5.6-1.el8 cluster. oVirt node Centos Stream 8 based. (5pcs) oVirt Hosted Engine Centos stream 8 based. We installed the hosts from an ISO image and the Hosted Engine we deployed from such a host. Link: https://resources.ovirt.org/pub/ovirt-4.5/iso/ovirt-node-ng-installer/4.5... How can we switch to Centos Stream 9 OS in the simplest way without downtime? Thanks in advance for the answer! Peter