9.3.2.

$ oc edit hyperconverged kubevirt-hyperconverged -n openshift-cnv

apiVersion: hco.kubevirt.io/v1beta1
kind: HyperConverged
metadata:
  name: kubevirt-hyperconverged
spec:
  dataImportCronTemplates:
  - metadata:
      name: rhel8-image-cron
    spec:
      template:
        spec:
          storageClassName: <new_storage_class> 

      schedule: "0 */12 * * *" 

      managedDataSource: <data_source> 

# ...

For the custom image to be detected as an available boot source, the value of the `spec.dataVolumeTemplates.spec.sourceRef.name` parameter in the VM template must match this value.

$ oc patch storageclass <new_storage_class> -p '{"metadata":{"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}'