MetalLB Operator installation failed when upgrading from version 4.10 to 4.12
Issue
MetalLB Operator installation failed in the "metallb-system" Namespace when upgrading from version 4.10 to 4.12 with below error:
Namespace does not support installation mode
The OperatorGroup in the metallb-system Namespace does not support the global installation mode.
Select a different installation Namespace that supports this mode.
Environment
- Red Hat Openshift Container Platform: 4.12
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