vCenter 9.1 depot is inaccessible or has invalid contents error is generated from the Sync Updates action in vCenter Server 9.1

Products

• VMware vCenter Server
• VCF Operations
• VMware vSphere ESXi

Issue/Introduction

• SDDC Manager and vCenter have been upgraded to 9.1.0.0
• To be upgraded next are the ESX hosts
• When running "Sync Updates" on vSphere Lifecycle Manager - the error below is observed -

A general system error occurred: "A depot is inaccessible or has invalid contents. Make sure an official depot source is used and verify connection to the depot."  

• The depot has been confirmed to be enabled and connected
• The error below is seen in the vCenter log file - /var/log/vmware/vmware-updatemgr/vum-server/imageService.log -

YYYY-MM-DD hh:mm:ss,sss INFO imageService [xxxxxxxxxxxxxxx] [imageService xxx] Error parsing https://sddc_fqdn/vmware/vcf/umds/patch-store/hostupdate/vmw/metadata-210397.zip: ('Esxi: 9.1.0-0.25370933', 'baseimage', "Two base images share the same releaseID

• When running an upgrade pre-check against a 9.0 workload domain where the vCenter has already been upgraded but the hosts have not, the Create and Commit draft check fails with the following error:
  
  Failed to invoke create and commit the desired state image spec

Environment

• VCF 9.1
• vCenter Server 9.1
• vSphere ESX 9.0

Cause

• Two base images share the same release ID
• This can happen if the 9.1 image is created when the vCenter is still running 9.0

Resolution

If this issue is encountered, open a support case with Broadcom Support and refer to this KB article.

For more information, see Creating and managing Broadcom support cases.

Additional Information

Provide the following when contacting Broadcom support:

• vCenter Server support bundle.
• ESXi host support bundles for hosts that are failing to configure as transport nodes.
• Text of any error messages seen in NSX GUI or command lines pertinent to the investigation.

Handling Log Bundles for offline review with Broadcom support:

• Collecting diagnostic information for VMware vCenter Server
• Uploading files to cases on the Broadcom Support Portal
• Creating and managing Broadcom support cases