Gentoo user here. I encountered this message on boot as well on kernel 6.7.4 after upgrading from grub 2.06 to 2.12, with EFI_HANDOVER_PROTOCOL = N. I found that setting EFI_STUB = N in my kernel made the message go away, so it can be taken care of if you don't mind manually rebuilding your kernel.
Statistics: Posted by JM01085758 — 2024-02-16 23:35