OK now I get what you mean. In that case, one can reboot and select the other no...

effie on Nov 4, 2022 | parent | context | favorite | on: Linux boot partitions and how to set them up

OK now I get what you mean. In that case, one can reboot and select the other non-broken disk and the system will boot, with some hiccups due to degraded array, but it will boot.