Comment # 11 on bug 1183884 from Projeto Linux Kamarada

I imagine where the confusion comes from.

Actually, I installed Linux Kamarada 15.2, which is based on openSUSE Leap
15.2, using Calamares. Then recently I upgraded it to openSUSE Leap 15.3 Beta
using zypper.

I'm not able to answer your first questions, because I don't know much about
EFI... I don't know what "Unknown Device", "RC" or "A01" mean.

> Which boot entry you were using to boot the opensuse? Have you tried the
> 'Unknown Device' ?

Probably I'm booting Kamarada.

> Besides we may need the config files which would be used for efi label
> creation.
> 
> /etc/default/grub
> /etc/os-release
> 
> And the output of the command
> 
> ls -lR /boot/efi

I'll attach them.

> The access time would be useful to tell which grubx64.efi was updated and
> when ...

Yesterday I did a zypper up, the same error appeared and I applied the same
workaround.

The grub2 package installed on my system is now version 2.04-20.1. The package
changelog says it was last updated Fri Apr 23 2021 09:00:00.

> Thanks.

Thank you too!

Please note that while I was using Kamarada 15.2 / Leap 15.2, updates worked
well. I imagine if there is some hardcoded string pointing to EFI/opensuse into
the 15.3 grub package.