On 10/1/20 5:52 AM, Marius Schwarz wrote:
>
> Is it possible to boot from the stick and then perform a grub-install
> with an old grub?
>
This attempt failed too:
# grub2-install /dev/sda
grub2-install: Fehler: /usr/lib/grub/x86_64-efi/modinfo.sh existiert
nicht. Bitte geben Sie --target oder --directory an.
and that file seems not to be part of any package. There is only one for
"i386-pc".
You can't (and must not!) use grub2-install on an EFI system.