Am 21.01.23 um 21:04 schrieb Pascal Hambourg:

On 21/01/2023 at 19:57, Reindl Harald wrote:

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Am 21.01.23 um 19:52 schrieb Pascal Hambourg:

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On 21/01/2023 at 17:24, Reindl Harald wrote:

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Am 21.01.23 um 16:17 schrieb Pascal Hambourg:

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My point was that UEFI did not change the fact that "you cannot 
have everything needed for boot on a RAID", so nothing new here.

useless nitpicking isn't helpful

Barking up the wrong tree isn't useful either. EFI is not the culprit.

but the root cause - cause and effect

No, EFI is not the root cause either. The root cause is carelessly 
storing stuff in the bootloader area as if it was part of the standard 
Linux filesystem. Guess what ? It is not. 

LSB is dead

Even though the EFI partition 
contains a filesystem, it is not a part of the standard Linux filesystem 
and requires special consideration, just like the MBR, the post-MBR gap 
or the BIOS boot partition.

LSB is dead

You can blame Fedora for this. I blame Debian for this. I praise Ubuntu 
for managing multiple EFI partitions at last, and I do not often praise 
Ubuntu, believe me.

i don't blame anybody

"BootLoaderSpec" is supposed to fix all the mess around UEFI and bootloaders

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https://fedoraproject.org/wiki/Changes/BootLoaderSpecByDefault

I did not find any information about where the kernel-selection is 
stored in this page.

in /efi/loader/entries/

Weird, the wiki mentions /boot/loader/entries/.

because that will be the default for everyone in the future

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Wol wrote:

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quick rsync in the initramfs or boot sequence to sync EFIs, then 
that's probably the best place.

yeah, initramfs is fine because that's generated due kernel-install

Aren't you confusing the initramfs execution and generation ?

initramfs execution is completly irrelevant for the topic

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ok, my mistake: initramfs generation is fine because at that point 
everything is already there, the initrd is locate don the EFI and when 
that's finished is the point to sync a backup-ESP

But that's not enough, because other parts of the system may write to 
the EFI partition, so it does not completely solve the issue

the issue "my primary drive died and i need to boot from the second 
drive" is solved - period

nobody gives a shit about runtime stuff probably written to the ESP when 
a drive dies - the only question at that moment is "does my machine boot 
regulary after one of both drives died and can i start a RAID-rebuild 
from my normal environment and continue my work"