ESXi Warning During Boot: "Failed to determine TPM asset tag size: Buffer too smallFailed to measure asset tag into TPM: Buffer too small"

Products

• VMware vSphere ESXi

Issue/Introduction

When booting into ESXi, your host experiences the error message "Failed to determine TPM asset tag size: Buffer too smallFailed to measure asset tag into TPM: Buffer too small."

Environment

ESXi 7.0 U3

Cause

A TPM-enabled ESXi host has no asset tag set on.

Resolution

Ignore the warnings or set an asset tag by using the command

• esxcli hardware tpm tag set -d

Additional Information

Issue identified in 7.0 U3p release notes: https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/7-0/release-notes/esxi-update-and-patch-release-notes/vsphere-esxi-70u3p-release-notes.html