Verified with https://openshift-release.apps.ci.l2s4.p1.openshiftapps.com/releasestream/4-stable/release/4.9.27
Flexy install with the following LAUNCHER_VARS:
Flexy install failed with the following error, Mint is not allowed any more.
04-05 12:30:31.821 [INFO] Generating manifests files.....
04-05 12:30:32.076 level=fatal msg=failed to fetch Master Machines: failed to load asset "Install Config": invalid "install-config.yaml" file: credentialsMode: Unsupported value: "Mint": supported values: "Manual", "Passthrough"
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 (Important: OpenShift Container Platform 4.9.27 bug fix and 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.