> While upgrading my FAI image to 5.10.1 it also updated the kernel to > the latest one from buster-backports (as expected per my NFSROOT > configuration) which currently is '5.10.0-0.bpo.3-amd64'. While doing > this I noticed that new installs that are using EFI was not booting > after FAI had run. The `grub-install` stage flagged with the > following warning message.
This was fixed in version 5.10.3 by Thomas Lange [1]. Thanks Thomas! [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=986820 -- Markus