diff --git a/debian/weatherstation-chart.postinst b/debian/weatherstation-chart.postinst
new file mode 100644
index 0000000..f84a23f
--- /dev/null
+++ b/debian/weatherstation-chart.postinst
@@ -0,0 +1,26 @@
+#!/bin/sh
+
+#DEBHELPER#
+
+if ! getent passwd weatherstation >/dev/null 2>&1; then
+        echo -n "Creating user/group 'weatherstation'" >&2
+        adduser --quiet --system --group --no-create-home \
+        --disabled-password --disabled-login \
+        --shell /bin/false weatherstation
+        echo "."
+fi
+
+
+if [ -e /etc/weatherstation/frontend.conf ]; then
+	LINKNAME="/usr/share/weatherstation-frontend/$(grep default_chart_dir /etc/weatherstation/frontend.conf | cut -f 2 -d "'" | cut -f 2 -d '"')"
+	if [ ! -e $LINKNAME ]; then
+		LINKTARGET=$(grep dflt_image_location /etc/weatherstation/chart.conf | cut -f2)
+		if [ -e $LINKTARGET ]; then
+			echo -n "Lege Link zu den Bildern an ... "
+			/bin/ln -s -f $LINKTARGET $LINKNAME
+			echo "done"
+		fi
+	fi
+fi
+
+
diff --git a/debian/weatherstation-chart.postrm b/debian/weatherstation-chart.postrm
new file mode 100644
index 0000000..e9652f0
--- /dev/null
+++ b/debian/weatherstation-chart.postrm
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+#DEBHELPER#
+
+if getent passwd weatherstation >/dev/null 2>&1; then
+	echo -n "delete user weatherstation ... "
+        deluser --quiet weatherstation  2>/dev/null || true
+	echo "done"
+fi
+
+if [ -e /etc/weatherstation/frontend.conf ]; then
+	LINKNAME="/usr/share/weatherstation-frontend/$(grep default_chart_dir /etc/weatherstation/frontend.conf | cut -f 2 -d "'" | cut -f 2 -d '"')"
+	if [ -e $LINKNAME ]; then
+		echo -n "Lösche Bilderlink ... "
+		/bin/rm -f $LINKNAME
+		echo "done"
+	fi
+fi
diff --git a/debian/weatherstation-chart.prerm b/debian/weatherstation-chart.prerm
new file mode 100644
index 0000000..d67fe72
--- /dev/null
+++ b/debian/weatherstation-chart.prerm
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+#DEBHELPER#
+
+IMGDIR=$(grep dflt_image_location /etc/weatherstation/chart.conf | cut -f2)
+
+FILES=$(ls -Al $IMGDIR | wc -l)
+
+if [ $FILES -gt 1 ]; then
+	echo -n "lösche $[$FILES - 1] generierte Bilder ... "
+	/bin/rm -f $IMGDIR/*
+	echo "done"
+fi
diff --git a/debian/weatherstation-checksensor.postinst b/debian/weatherstation-checksensor.postinst
new file mode 100644
index 0000000..917bdf1
--- /dev/null
+++ b/debian/weatherstation-checksensor.postinst
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+#DEBHELPER#
+
+if ! getent passwd weatherstation >/dev/null 2>&1; then
+        echo -n "Creating user/group 'weatherstation'" >&2
+        adduser --quiet --system --group --no-create-home \
+        --disabled-password --disabled-login \
+        --shell /bin/false weatherstation
+        echo "."
+fi
diff --git a/debian/weatherstation-checksensor.postrm b/debian/weatherstation-checksensor.postrm
new file mode 100644
index 0000000..7813d25
--- /dev/null
+++ b/debian/weatherstation-checksensor.postrm
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+#DEBHELPER#
+
+if getent passwd weatherstation >/dev/null 2>&1; then
+	echo -n "delete user weatherstation ... "
+        deluser --quiet weatherstation  2>/dev/null || true
+	echo "done"
+fi
diff --git a/debian/weatherstation-frontend.postinst b/debian/weatherstation-frontend.postinst
index baced7e..5d1bff6 100644
--- a/debian/weatherstation-frontend.postinst
+++ b/debian/weatherstation-frontend.postinst
@@ -11,4 +11,17 @@ echo "#  nach!                                           #"
 echo "####################################################"
 echo ""
 
+
+if [ -e /etc/weatherstation/chart.conf ]; then
+	LINKNAME="/usr/share/weatherstation-frontend/$(grep default_chart_dir /etc/weatherstation/frontend.conf | cut -f 2 -d "'" | cut -f 2 -d '"')"
+	if [ ! -e $LINKNAME ]; then
+		LINKTARGET=$(grep dflt_image_location /etc/weatherstation/chart.conf | cut -f2)
+		if [ -e $LINKTARGET ]; then
+			echo -n "Lege Link zu den Bildern an ... "
+			/bin/ln -s -f $LINKTARGET $LINKNAME
+			echo "done"
+		fi
+	fi
+fi
+
 #DEBHELPER#
diff --git a/debian/weatherstation-frontend.prerm b/debian/weatherstation-frontend.prerm
new file mode 100644
index 0000000..a6d1c3e
--- /dev/null
+++ b/debian/weatherstation-frontend.prerm
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+#DEBHELPER#
+
+if [ -e /etc/weatherstation/chart.conf ]; then
+	LINKNAME="/usr/share/weatherstation-frontend/$(grep default_chart_dir /etc/weatherstation/frontend.conf | cut -f 2 -d "'" | cut -f 2 -d '"')"
+	if [ -e $LINKNAME ]; then
+		echo -n "Lösche Bilderlink ... "
+		/bin/rm -f $LINKNAME
+		echo "done"
+	fi
+fi
diff --git a/debian/weatherstation-weatherd.postinst b/debian/weatherstation-weatherd.postinst
new file mode 100644
index 0000000..917bdf1
--- /dev/null
+++ b/debian/weatherstation-weatherd.postinst
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+#DEBHELPER#
+
+if ! getent passwd weatherstation >/dev/null 2>&1; then
+        echo -n "Creating user/group 'weatherstation'" >&2
+        adduser --quiet --system --group --no-create-home \
+        --disabled-password --disabled-login \
+        --shell /bin/false weatherstation
+        echo "."
+fi
diff --git a/debian/weatherstation-weatherd.postrm b/debian/weatherstation-weatherd.postrm
new file mode 100644
index 0000000..7813d25
--- /dev/null
+++ b/debian/weatherstation-weatherd.postrm
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+#DEBHELPER#
+
+if getent passwd weatherstation >/dev/null 2>&1; then
+	echo -n "delete user weatherstation ... "
+        deluser --quiet weatherstation  2>/dev/null || true
+	echo "done"
+fi