Tested by upgrade cluster from 4.7.21 to 4.8.0-0.nightly-2021-08-09-135211 1. install 4.7.21 cluster on AWS IPI $ oc get clusterversion NAME VERSION AVAILABLE PROGRESSING SINCE STATUS version 4.7.21 True False 4m58s Cluster version is 4.7.21 2. upgrade 4.7.21 cluster to 4.8.0-0.nightly-2021-08-09-135211 $ oc adm upgrade --to-image=registry.ci.openshift.org/ocp/release:4.8.0-0.nightly-2021-08-09-135211 --force=true --allow-explicit-upgrade=true 3. check whether upgrade can be successful without 'clusteroperator/authentication is not available', actual result is as expected $ oc get clusterversion NAME VERSION AVAILABLE PROGRESSING SINCE STATUS version 4.8.0-0.nightly-2021-08-09-135211 True False 10h Cluster version is 4.8.0-0.nightly-2021-08-09-135211
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (OpenShift Container Platform 4.8.5 security update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2021:3121