"TPM 1.2 device detected. Support for TPM version 1.2 is discontinued. Installation may proceed, but may cause the system to behave unexpectedly." warning after running compliance check on vSphere Cluster

Products

• VMware vSphere ESXi
• VMware vCenter Server 8.0
• VMware vCenter Server
• VMware vSphere ESXi 8.0

Issue/Introduction

Symptoms:

• When attempting to upgrade an ESXi host via vCenter, the compliance check task results in Status as Incompatible with below warning:
  "TPM 1.2 device detected. Support for TPM version 1.2 is discontinued. Installation may proceed, but may cause the system to behave unexpectedly."

  Steps: vSAN Cluster > Updates > Image > vSAN node > Run Pre-Check

• On vCenter Server, in /var/log/vmware/vmware-updatemgr/vum-server/vmware-vum-server.log

####-##-##T##:###:##.###Z info vmware-vum-server[10875] [Originator@6876 sub=HostUpgradeScanner] [scannerImpl 1757] (vmodl.LocalizableMessage) [
-->    (vmodl.LocalizableMessage) {
-->       key = "com.vmware.vcIntegrity.HostUpgrade.UnsupportedTPMVersion",
-->       arg = <unset>,
-->       message = <unset>
-->    }
--> ]

Environment

VMware vSphere ESXi 

Cause

• The ESXi host's hardware is currently configured with TPM 1.2 but vSphere 8.0 has deprecated support for TPM 1.2.

Resolution

Below are the two engineering-approved paths to resolve TPM compatibility issues when upgrading to ESXi 8.0:

1. If ESXi hosts use TPM:
   
   
   • Upgrade Firmware: Contact the hardware vendor (e.g., Dell, HPE, Lenovo) to upgrade the TPM Firmware from 1.2 to 2.0.
     
     
   • Configure BIOS: After upgrading to TPM 2.0, the BIOS setting "Physical Presence" MUST be set to "Asserted". Refer Error: UEFI Secure Boot failed after changing TPM to version 2.0 on ESXi host
     
     
2. If ESXi hosts don't use TPM:
   
   ESXi 7.x -

• • Remediate the ESXi hosts and check the box for "Ignore warnings about unsupported hardware devices" to allow the upgrade to proceed but no TPM functionality will be available for the host.
    

ESXi 8.x -

• • Select the cluster > Updates > Image > Edit remediation settings > Uncheck "Prevent remediation if hardware compatibility issues are found".
    
    

Additional Information

• ESXi command to check if TPM hardware Module is present on the ESXi host:
  
   # esxcli hardware trustedboot get

Output -
      Drtm Enabled: false
  Tpm Present: true
  
  
• ESXi command to list the current encryption settings on the ESXi host: 
  
  # esxcli system settings encryption get

Output -
      Mode: TPM
    Require Executables Only From Installed VIBs: false
    Require Secure Boot: true

If mode is set to 'TPM', then the TPM feature is enabled on the Host BIOS settings and TPM is enabled. 

Output -
Mode: NONE
  Require Executables Only From Installed VIBs: false
  Require Secure Boot: false

If mode is set to 'NONE', then the TPM feature is not enabled on the Host BIOS settings.

 

Refer the below articles for more information about TPM:

• VMware vSphere Support of Trusted Platform Module (TPM) and Trusted Execution Technology (TXT)
• ESXi upgrade fails from 7.x to 8.x due to unsupported TPM version.
• Need to disable Trusted Platform Module (TPM) on a TPM enabled ESXi host.