Help: I replaced all disk in the zfs rpool (2-disk, RAID1) - but after restarting, it won't boot at all.

Note: I did read this thread -> https://forum.proxmox.com/threads/zfs-boot-disk-no-longer-bootable-after-rpool-resilvering.77040/

But for my case, I no longer have the old disk (250GB) disks, because I reformatted them, prior to reboot-testing.

May i request for some guide how to re-add those boot and efi partitions?

Thanks,