Symptoms:
Upon booting an ESXi host that was abruptly shut down or a power outage occurs, a PSOD with the following message is received:
Failed to validate acceptance levels: Failed to check acceptance levels: Failed to get 'acceptance_level' from config store: Get schema internal failed
VMware vSphere ESXi 7.0
This problem may occur after an abrupt shutdown or power outage causes filesystem corruption on the host.
If this issue occurs, ESXi must be reinstalled on the host.
When reinstalling ESXi, you can preserve the existing VMFS volume and re-register existing virtual machines on the host.
For guidance on reinstalling ESXi:
For guidance on registering existing virtual machines: