4.13 Cannot Reset Root Password Using nova root-password on Instances

Resetting the root password of virtual machine instances using the nova root-password is not supported. If you attempt to change the root password in this way, the following error is displayed.

$ nova root-password vm_id 
New password:
ERROR (HTTPNotImplemented): Unable to set password on instance (HTTP 501) ... 

This error occurs on both Oracle Linux KVM-based compute nodes, and Oracle VM Server compute nodes.

Bug: 23017499