/boot/refind_linux.confの例
#rEFInd #Gentoo
code:/boot/refind_linux.conf
"Boot with standard options" "root=PARTUUID=c474e2a9-b9a2-44dc-917f-f6be7659f873 rw add_efi_memmap"
"Boot to single-user mode" "root=PARTUUID=c474e2a9-b9a2-44dc-917f-f6be7659f873 rw add_efi_memmap single"
"Boot with minimal options" "ro root=/dev/root"