ESXi stuck rebooting after patching

Products

• VMware vSphere ESXi

Issue/Introduction

・ESXi stuck rebooting after patching.
・Once you shut down the system completely and restart it, the ESXi server will boot normally.
・The following message is output to the hardware console:
 　"No boot device available or Operating system detected"

Environment

VMware ESXi
VMware ESX

Resolution

This symptom is caused by hardware issue.
Please contact hardware vendor.