We tried to deploy SNO (using oran-o2ims operator) on a SuperMicro Grace-Hopper (ARM CPU Architecture), we set cpuArchitecture to aarch64 in ProvisioningRequest/clusterInstanceParameters and cpuArchitecture to aarch64 in the ClusterTemplate/clusterInstanceParameters. Once ProvisioningRequest created, ClusterInstance render is created with cpuArchitecture: x86_64 instead of aarch64 (cpu arch setting is not converted into clusterInstance as expected). So image is not generated by Infraenv blocking cluster install.

    o-cloud-manager.v4.20.0 
    advanced-cluster-management.v2.14.1
    multicluster-engine.v2.9.1
    HUB OCP 4.20-RC3  / SNO X86_64 Server                                                               
    SPOKE: OCP 4.18.  / SNO ARM Server 

systematic    

    1. Create ClusterImageSet (OCP aarch64 image) and ClusterTemplates manifests with cpuArchitecture set to aarch64 in the ClusterTemplate/clusterInstanceParameters
    2. Create ProvisioningRequest with cpuArchitecture set to aarch64 in ProvisioningRequest/clusterInstanceParameters    
    3. Check cpu arch in ClusterInstance Render and image generated by Infraenv
    

 In clusterInstance render, cpuArchitecture is set to x86_64 (default value), and image is not created 

    - lastTransitionTime: "2025-11-12T20:52:32Z"
      message: 'Failed to create image: Specified CPU architecture (x86_64) doesn''t
        match the cluster (arm64)'
      reason: ImageCreationError
      status: "False"
      type: ImageCreated
    debugInfo:
      eventsURL: "" 

     In clusterInstance render, cpuArchitecture is set to aarch64 as defined in ProvisioningRequest and Infraenv is created as expected with image generated.

   We are deploying From HUB (X86_64 server)