diff --git a/noveriablcgen b/noveriablcgen
index 0c24570..6427cbe 100755
--- a/noveriablcgen
+++ b/noveriablcgen
@@ -81,14 +81,22 @@ for arrval in $(find $bedir -mindepth 1 -maxdepth 1 -type d | grep @root | cut -
   bootenvs+=("$arrval")
 done
 
-rm -f "$grubdir/*"
+rm -f $grubdir/*
 for be in ${bootenvs[@]}; do
   parseTimestampHuman "$be"
   parseTimestamp "$be"
 
-  TIMESTAMP_HUMAN=$(parseTimestampHuman "$be") CURRENT_SUBVOLUME_TIMESTAMP=$(parseTimestamp "$be") ROOT_UUID=$(getValueByKey "root_uuid") envsubst '$TIMESTAMP_HUMAN:$CURRENT_SUBVOLUME_TIMESTAMP:$ROOT_UUID' < "${ROOTPATH}/grub-config.in" >> "${grub_conf_dir}/$(getValueByKey 'filename')"
+  TIMESTAMP_HUMAN=$(parseTimestampHuman "$be") CURRENT_SUBVOLUME_TIMESTAMP=$(parseTimestamp "$be") ROOT_UUID=$(getValueByKey "root_uuid") envsubst '$TIMESTAMP_HUMAN:$CURRENT_SUBVOLUME_TIMESTAMP:$ROOT_UUID' < "${ROOTPATH}/grub-config.in" >> "${grubdir}/$(getValueByKey 'filename')"
 done
 
+# Prepend `cat <<EOF`, append `EOF` to $filename, for grub to handle
+sed -i -e "1i `echo 'cat <<EOF'`" "${grubdir}/$(getValueByKey 'filename')"
+echo "EOF" >> "${grubdir}/$(getValueByKey 'filename')"
+
+grub-mkconfig -o $(getValueByKey 'grub_cfg')
+
+less $(getValueByKey 'grub_cfg')
+
 ##
 # SCRIPT END
 ##
\ No newline at end of file
diff --git a/noveriablcgen.json b/noveriablcgen.json
index aae3599..1bd645a 100644
--- a/noveriablcgen.json
+++ b/noveriablcgen.json
@@ -2,5 +2,6 @@
   "be_env_dir": "/btrfs",
   "grub_conf_dir": "",
   "filename": "",
-  "root_uuid": ""
+  "root_uuid": "",
+  "grub_cfg": ""
 }
\ No newline at end of file