Probing the MU is needed to prevent this error in the SPL: ele dev is not initialized Authenticate container hdr failed, return -19, resp 0x0 IND = INVALID ele dev is not initialized Error: release container failed, resp 0x0! IND = INVALID SPL: failed to boot from all boot devices Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>