On 21/01/2023 at 19:39, Reindl Harald wrote:

Am 21.01.23 um 19:32 schrieb Pascal Hambourg:

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On 21/01/2023 at 16:21, Wols Lists wrote:

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Is that one EFI per OS, or multiple identical EFI? :-)

Neither. Multiple possibly not identical EFI partitions

is completly off-topic BTW

Can you elaborate ?

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Mirroring with one EFI partition per OS does not make much sense.
And it would not be universal if it required identical partitions.

and how do you expect the UEFI smell which one is supposed to be booted 
from?

Boot* and BootOrder EFI variables exist for a purpose.

you can't fix the design-errors of UEFI

But you can (and should) deal with them.