Re: Transferring an existing system from non-RAID disks to RAID1 disks in the same computer

On 15/01/2023 09:39, Reindl Harald wrote:

the point is that "you need efi to boot, but the system can't access efi 
until it's booted" is nonsense because the whole point of the ESP is 
that the UEFI is driectly starting UEFI-binaries at the ESP

And here the fact that English appears not to be your native language is 
biting you in the bum.

Correct - the UEFI is starting your ESP binaries, which reside in 
/boot/efi, AND IF /BOOT/EFI IS A NORMAL RAID, the UEFI can't read it.

Cue a circular dependency - the UEFI can't read /boot/efi because it's 
not a bog-standard fat.

Cheers,
Wol