During the extensive tests with attach media on different platforms, there was an occurrence of the following error on a Lenovo server, which looks like an error, that could have been retried:
Received an error from the server: Failed to attach media to server "r01-s03": Failed to attach media to server "r01-s03" via BMC: Failed to set boot device on BMC: PATCH /redfish/v1/Systems/1 {"Boot":{"BootSourceOverrideEnabled":"Once","BootSourceOverrideTarget":"Usb"}}: BMC returned HTTP 412: Base.1.12.PreconditionFailed: The ETag supplied did not match the ETag required to change this resource. (severity: Critical) Resolution: Try the operation again using the appropriate ETag.
During the extensive tests with attach media on different platforms, there was an occurrence of the following error on a Lenovo server, which looks like an error, that could have been retried: