fix #33692 and #30770

60_memtest86+

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+########################################################
+# This script generates a memtest86+ entry on grub.cfg #
+# if memtest is installed on the system.               #
+########################################################
+
+prefix="/usr"
+exec_prefix="${prefix}"
+
+datarootdir="/usr/share"
+datadir="${datarootdir}"
+
+. "${datadir}/grub/grub-mkconfig_lib"
+
+MEMTEST86_IMAGE="/boot/memtest86+/memtest.bin"
+CLASS="--class memtest86 --class gnu --class tool"
+
+if [ -e "${MEMTEST86_IMAGE}" ] && is_path_readable_by_grub "${MEMTEST86_IMAGE}" ; then
+    ## image exists, create menu entry
+    echo "Found memtest86+ image: ${MEMTEST86_IMAGE}" >&2
+    _GRUB_MEMTEST_HINTS_STRING="$(${grub_probe} --target=hints_string ${MEMTEST86_IMAGE})"
+    _GRUB_MEMTEST_FS_UUID="$(${grub_probe} --target=fs_uuid ${MEMTEST86_IMAGE})"
+    _GRUB_MEMTEST_REL_PATH="$(make_system_path_relative_to_its_root ${MEMTEST86_IMAGE})"
+    cat << EOF
+if [ "${grub_platform}" == "pc" ]; then
+    menuentry "Memory Tester (memtest86+)" ${CLASS} {
+        search --fs-uuid --no-floppy --set=root ${_GRUB_MEMTEST_HINTS_STRING} ${_GRUB_MEMTEST_FS_UUID}
+        linux16 ${_GRUB_MEMTEST_REL_PATH} ${GRUB_CMDLINE_MEMTEST86}
+    }
+fi
+EOF
+fi