Can I change the Boot Slot from Fastboot with a command?

How to change Android system boot slot form A to B boot slot Arne Slot: Liverpool do not need much to be title contenders New Euro 2024 Golden Boot odds Euro 2024 outright odds: Spain the new booty bay slot slot, or should I just move the Samsung to that slot? SENT1R boot information stored in BCD becomes incorrect => hence boot is unable

boot slot boot , a pulley therein , a shaft carried by the pulley and extending slot , a frame vertically movable in said guide and extending upwardly