Symptoms
When following the instructions to install Event Streams 11.1.1 in an air-gapped environment, the step where images are mirrored fails with the following error:
error: unable to retrieve source image icr.io/cpopen/ibm-eventstreams-catalog manifest sha256:1fd01b60a879719996abff8916f8afe8f3978a602bdba7d28fb3fa9073ef3498: manifest unknown: OCI index found, but accept header does not support OCI indexes
error: an error occurred during planning
Causes
The mirroring step fails because some of the images uploaded in the 11.1.1 release of Event Streams are not in a suitable format for mirroring.
Resolving the problem
Upgrade your Event Streams instance to version 11.1.3 or later to resolve the issue.