From: Andrey Borzenkov <arvidjaar@gmail.com>
Subject: detect linuxefi/initrdefi secure bootloaders too
Reference: bnc#810912

Recognize initrdefi and linuxefi too. Whether linux/initrd or
linuxefi/initrdefi will be emitted is controlled by SECURE_BOOT
setting in /etc/sysconfig/bootloader.
Index: os-prober-1.61/linux-boot-probes/mounted/common/40grub2
===================================================================
--- os-prober-1.61.orig/linux-boot-probes/mounted/common/40grub2
+++ os-prober-1.61/linux-boot-probes/mounted/common/40grub2
@@ -71,7 +71,7 @@ parse_grub_menu () {
 					ignore_item=1
 				fi
 			;;
-			linux)
+			linux|linuxefi)
 				# Hack alert: sed off any (hdn,n) but
 				# assume the kernel is on the same
 				# partition.
@@ -84,7 +84,7 @@ parse_grub_menu () {
 					kernel="/boot$kernel"
 				fi
 			;;
-			initrd)
+			initrd|initrdefi)
 				shift
 				initrd=""
 				for initrd_path in "$@"; do