diff --git a/buildCurrentSymlinkedKernel.sh b/buildCurrentSymlinkedKernel.sh
index e0d3cf3..f7363f8 100755
--- a/buildCurrentSymlinkedKernel.sh
+++ b/buildCurrentSymlinkedKernel.sh
@@ -1,20 +1,53 @@
 #!/usr/bin/env bash
 
-if [ ! -f /usr/src/linux/.config ] && [ -f /proc/config.gz ] ; then
+SRC_TREE="/usr/src/linux"
+SRC_CONFIG=".config"
+
+declare -a OUT
+
+LWD="$PWD"
+cd "$SRC_TREE" || exit 1
+
+if [[ ! -f $SRC_CONFIG ]] ; then
+  NOCONFIG="1"
+fi
+if [[ "$1" == "--force" ]] ; then
+  FORCE="1"
+fi
+
+if [[ -f /proc/config.gz ]] ; then
+  OLDCONFIG="1"
+fi
+
+
+if [[ "$NOCONFIG" || "$FORCE" ]]  ; then
   echo "**************** building kernel  ***********"
 
-  LWD="$PWD"
   TIMESTAMP=$(date +%F-%H_%M_%S)
-  cd /usr/src/linux || exit 1
 
-  zcat /proc/config.gz > .config
+  if [[ "$NOCONFIG" ]] ; then
+    if [[ "$OLDCONFIG" ]] ; then
+      OUT+=("********** Using old config ************")
+      echo "${OUT[-1]}"
+      zcat /proc/config.gz > .config
+    else
+      OUT+=("********** WARNING! No old config has been found! Using defconfig! ************")
+      echo "${OUT[-1]}"
+      make defconfig
+    fi
+  else
+    OUT+=("Found kernel config in source tree!")
+    echo "${OUT[-1]}"
+  fi
 
   make olddefconfig
-  mount /boot
 
-  (make -j5 CC="ccache gcc" && make install && make modules_install && make firmware_install) > "buildlog-$TIMESTAMP" || tail -n 20 "buildlog-$TIMESTAMP"
+  echo mounting boot if not yet mounted
+  mount /boot 2> /dev/null
 
-  GRUBMKONFIG="$(which grub2-mkconfig)"
+  (make -j17 -l15 CC="ccache gcc" && make install && make modules_install && make firmware_install) > "buildlog-$TIMESTAMP" || tail -n 20 "buildlog-$TIMESTAMP"
+
+  GRUBMKONFIG="$(which grub2-mkconfig 2> /dev/null)"
   if [[ -z "$GRUBMKONFIG" ]] ; then
     GRUBMKONFIG="$(which grub-mkconfig)"
   fi
@@ -26,6 +59,13 @@ if [ ! -f /usr/src/linux/.config ] && [ -f /proc/config.gz ] ; then
   else
     echo "please update bootloader manually!"
   fi
-  cd "${LWD}" || exit 1
+  echo
+  echo
+  echo Summary:
+  IFS=$'\n' echo -e "${OUT[*]}"
+  echo diff between current running und last build config:
+  diff .config <(zcat /proc/config.gz )
+
 fi
 
+ cd "${LWD}" || exit 1