I'm trying to boot Refind from the UEFI GRUB2, with the following commands, but I'm getting an error:
grub> chainloader (hd0)/refind_x64.efi
file path: /ACPI(..../File(refind_x64.efi)/EndEntire
error: unknown error.
In fact, I get the same error when I try to boot the EFI shell version 2.
Somebody else got the same error message: https://tails.boum.org/contribute/design/UEFI/
The filesystem containing
refind_x64.efi is ext2 directly on the device, there are no partitions.
How can I boot Refind from UEFI GRUB2?