diff --git a/Makefile b/Makefile
index 4207a13..384c79c 100644
--- a/Makefile
+++ b/Makefile
@@ -221,7 +221,7 @@ wmbusmeters_$(DEBVERSION)_$(DEBARCH).deb:
 	@./install.sh $(BUILD)/wmbusmeters $(BUILD)/debian/wmbusmeters --no-adduser
 #   Remove the conf files, they are to be installed by postinst.
 	@rm $(BUILD)/debian/wmbusmeters/etc/wmbusmeters.conf
-	@rmdir $(BUILD)/debian/wmbusmeters/etc/wmbusmetersd
+	@rm -rf $(BUILD)/debian/wmbusmeters/etc/wmbusmetersd
 #   Build the control file
 	@echo "Package: wmbusmeters" >> $(BUILD)/debian/wmbusmeters/DEBIAN/control
 	@echo "Version: $(DEBVERSION)" >> $(BUILD)/debian/wmbusmeters/DEBIAN/control
diff --git a/deb/postinst b/deb/postinst
index 316e7b9..85eb023 100755
--- a/deb/postinst
+++ b/deb/postinst
@@ -1,74 +1,6 @@
 #!/bin/sh
 
+ADD_WMBUSMETERS_USER
+
 # Start wmbusmeters service
-
-if [ $(getent group wmbusmeters) ]
-then
-    echo "group: wmbusmeters unmodified"
-else
-    groupadd -f wmbusmeters
-    echo "group: added wmbusmeters"
-fi
-
-ID=$(id -u wmbusmeters 2>/dev/null)
-
-if [ -f /usr/sbin/nologin ]
-then
-    USERSHELL="/usr/sbin/nologin"
-elif [ -f /sbin/nologin ]
-then
-    USERSHELL="/sbin/nologin"
-else
-    USERSHELL="/bin/false"
-fi
-
-if [ -z "$ID" ]
-then
-    # Create the wmbusmeters user
-    useradd --system --shell $USERSHELL -g wmbusmeters wmbusmeters
-    echo "user: added wmbusmeters"
-else
-    echo "user: wmbusmeters unmodified"
-fi
-
-if [ $(getent group dialout) ]
-then
-    if [ "$(groups wmbusmeters | grep -o dialout)" = "" ]
-    then
-        # Add the wmbusmeters user to dialout
-        usermod -a -G dialout wmbusmeters
-        echo "user: added wmbusmeters to dialout group"
-    else
-        echo "user: wmbusmeters already added to dialout"
-    fi
-else
-    echo "dialout group does not exist"
-fi
-
-if [ $(getent group uucp) ]
-then
-    if [ "$(groups wmbusmeters | grep -o uucp)" = "" ]
-    then
-        # Add the wmbusmeters user to uucp
-        usermod -a -G uucp wmbusmeters
-        echo "user: added wmbusmeters to uucp group"
-    else
-        echo "user: wmbusmeters already added to uucp"
-    fi
-else
-    echo "uucp group does not exist"
-fi
-
-if [ $(getent group plugdev) ]
-then
-    if [ "$(groups wmbusmeters | grep -o plugdev)" = "" ]
-    then
-        # Add the wmbusmeters user to plugdev
-        usermod -a -G plugdev wmbusmeters
-        echo "user: added wmbusmeters to plugdev group"
-    else
-        echo user: wmbusmeters already added to plugdev
-    fi
-else
-    echo "plugdev group does not exist"
-fi
+systemctl start wmbusmeters.service
diff --git a/install.sh b/install.sh
index e349863..0f646d2 100755
--- a/install.sh
+++ b/install.sh
@@ -44,297 +44,17 @@ do
         esac
 done
 
-####################################################################
-##
-## Intall binaries
-##
+ROOT=$ROOT /bin/sh ./scripts/install_binaries.sh
 
-rm -f "$ROOT"/usr/bin/wmbusmeters "$ROOT"/usr/sbin/wmbusmetersd
-mkdir -p "$ROOT"/usr/bin
-mkdir -p "$ROOT"/usr/sbin
-cp "$SRC" "$ROOT"/usr/bin/wmbusmeters
-ln -s /usr/bin/wmbusmeters "$ROOT"/usr/sbin/wmbusmetersd
-
-echo "binaries: installed $ROOT/usr/bin/wmbusmeters and $ROOT/usr/sbin/wmbusmetersd"
-
-####################################################################
-##
-## Intall wmbusmeters manual page
-##
-
-rm -f "$ROOT"/usr/share/man/man1/wmbusmeters.1.gz
-mkdir -p "$ROOT"/usr/share/man/man1
-gzip -v9 -c wmbusmeters.1 > "$ROOT"/usr/share/man/man1/wmbusmeters.1.gz
-
-echo "man page: installed $ROOT/usr/share/man/man1/wmbusmeters.1.gz"
-
-####################################################################
-##
-## Create wmbusmeters user
-##
-
-ID=$(id -u wmbusmeters 2>/dev/null)
-
-if [ -f "$ROOT"/usr/sbin/nologin ]
-then
-    USERSHELL="$ROOT/usr/sbin/nologin"
-elif [ -f "$ROOT"/sbin/nologin ]
-then
-    USERSHELL="$ROOT/sbin/nologin"
-else
-    USERSHELL="/bin/false"
-fi
+ROOT=$ROOT /bin/sh ./scripts/install_manpage.sh
 
 if [ "$ADDUSER" = "true" ]
 then
-    if [ $(getent group wmbusmeters) ]
-    then
-        echo "group: wmbusmeters unmodified"
-    else
-        groupadd -f wmbusmeters
-        echo "group: added wmbusmeters"
-    fi
-
-    if [ -z "$ID" ]
-    then
-        # Create the wmbusmeters user
-        useradd --system --shell $USERSHELL -g wmbusmeters wmbusmeters
-        echo "user: added wmbusmeters"
-    else
-        echo "user: wmbusmeters unmodified"
-    fi
-
-    if [ $(getent group dialout) ]
-    then
-        if [ "$(groups wmbusmeters | grep -o dialout)" = "" ]
-        then
-            # Add the wmbusmeters user to dialout
-            usermod -a -G dialout wmbusmeters
-            echo "user: added wmbusmeters to dialout group"
-        else
-            echo "user: wmbusmeters already added to dialout"
-        fi
-    else
-        echo "dialout group does not exist"
-    fi
-
-    if [ $(getent group uucp) ]
-    then
-        if [ "$(groups wmbusmeters | grep -o uucp)" = "" ]
-        then
-            # Add the wmbusmeters user to uucp
-            usermod -a -G uucp wmbusmeters
-            echo "user: added wmbusmeters to uucp group"
-        else
-            echo "user: wmbusmeters already added to uucp"
-        fi
-    else
-        echo "uucp group does not exist"
-    fi
-
-    if [ $(getent group plugdev) ]
-    then
-        if [ "$(groups wmbusmeters | grep -o plugdev)" = "" ]
-        then
-            # Add the wmbusmeters user to plugdev
-            usermod -a -G plugdev wmbusmeters
-            echo "user: added wmbusmeters to plugdev group"
-        else
-            echo user: wmbusmeters already added to plugdev
-        fi
-    else
-        echo "plugdev group does not exist"
-    fi
+    ROOT=$ROOT /bin/sh ./scripts/add_wmbusmeters_user.sh
 fi
 
-####################################################################
-##
-## Prepare for  /run/wmbusmeters.pid
-##
+ROOT=$ROOT /bin/sh ./scripts/prepare_logfiles.sh
 
-#if [ ! -d "$ROOT"/var/run ]
-#then
-#    # Create /var/run
-#    mkdir -p "$ROOT"/var/run
-#    echo pid store: created /var/run
-#fi
+ROOT=$ROOT /bin/sh ./scripts/install_default_configuration.sh
 
-####################################################################
-##
-## Prepare for  /var/log/wmbusmeters and /var/log/wmbusmeters/meter_readings
-##
-
-if [ ! -d "$ROOT"/var/log/wmbusmeters/meter_readings ]
-then
-    # Create the log directories
-    mkdir -p "$ROOT"/var/log/wmbusmeters/meter_readings
-    chown -R wmbusmeters:wmbusmeters "$ROOT"/var/log/wmbusmeters
-    echo "log: created $ROOT/var/log/wmbusmeters/meter_readings"
-fi
-
-####################################################################
-##
-## Install /etc/logrotate.d/wmbusmeters
-##
-
-if [ ! -f "$ROOT"/etc/logrotate.d/wmbusmeters ]
-then
-    mkdir -p "$ROOT"/etc/logrotate.d
-    # Create logrotate file
-    cat <<EOF > "$ROOT"/etc/logrotate.d/wmbusmeters
-/var/log/wmbusmeters/*.log {
-    rotate 12
-    weekly
-    compress
-    missingok
-    postrotate
-        /bin/kill -HUP `cat /run/wmbusmeters/wmbusmeters.pid 2> /dev/null` 2> /dev/null || true
-    endscript
-EOF
-    echo "logrotate: created $ROOT/etc/logrotate.d/wmbusmeters"
-else
-    echo "conf file: $ROOT/etc/logrotate.d/wmbusmeters unchanged"
-fi
-
-####################################################################
-##
-## Install /etc/wmbusmeters.conf
-##
-
-if [ ! -f "$ROOT"/etc/wmbusmeters.conf ]
-then
-    # Create default configuration
-    mkdir -p "$ROOT"/etc/
-    cat <<EOF > "$ROOT"/etc/wmbusmeters.conf
-loglevel=normal
-device=auto:t1
-logtelegrams=false
-format=json
-meterfiles=/var/log/wmbusmeters/meter_readings
-meterfilesaction=overwrite
-logfile=/var/log/wmbusmeters/wmbusmeters.log
-EOF
-    chmod 644 "$ROOT"/etc/wmbusmeters.conf
-    echo "conf file: created $ROOT/etc/wmbusmeters.conf"
-else
-    echo "conf file: $ROOT/etc/wmbusmeters.conf unchanged"
-fi
-
-####################################################################
-##
-## Create /etc/wmbusmeters.d
-##
-
-if [ ! -d "$ROOT"/etc/wmbusmeters.d ]
-then
-    # Create the configuration directory
-    mkdir -p "$ROOT"/etc/wmbusmeters.d
-    chmod -R 755 "$ROOT"/etc/wmbusmeters.d
-    echo "conf dir: created $ROOT/etc/wmbusmeters.d"
-else
-    echo "conf dir: $ROOT/etc/wmbusmeters.d unchanged"
-fi
-
-####################################################################
-##
-## Create /lib/systemd/system/wmbusmeters.service
-##
-
-SYSTEMD_NEEDS_RELOAD=false
-mkdir -p "$ROOT"/lib/systemd/system/
-
-OLD_WMBS=~/old.wmbusmeters.service.backup
-CURR_WMBS="$ROOT"/lib/systemd/system/wmbusmeters.service
-if [ -f $CURR_WMBS ]
-then
-    echo "systemd: backing up $CURR_WMBS to here: $OLD_WMBS"
-    cp $CURR_WMBS $OLD_WMBS 2>/dev/null
-fi
-
-# Create service file for starting daemon without explicit device.
-# This means that wmbusmeters will rely on the conf file device setting.
-cat <<'EOF' > $CURR_WMBS
-[Unit]
-Description="wmbusmeters service"
-Documentation=https://github.com/weetmuts/wmbusmeters
-Documentation=man:wmbusmeters(1)
-After=network.target
-StopWhenUnneeded=false
-StartLimitIntervalSec=10
-StartLimitInterval=10
-StartLimitBurst=3
-
-[Service]
-Type=forking
-PrivateTmp=yes
-User=wmbusmeters
-Group=wmbusmeters
-Restart=always
-RestartSec=1
-
-# Run ExecStartPre with root-permissions
-
-PermissionsStartOnly=true
-ExecStartPre=-/bin/mkdir -p /var/log/wmbusmeters/meter_readings
-ExecStartPre=/bin/chown -R wmbusmeters:wmbusmeters /var/log/wmbusmeters
-ExecStartPre=-/bin/mkdir -p /run/wmbusmeters
-ExecStartPre=/bin/chown -R wmbusmeters:wmbusmeters /run/wmbusmeters
-
-ExecStart=/usr/sbin/wmbusmetersd /run/wmbusmeters/wmbusmeters.pid
-ExecReload=/bin/kill -HUP $MAINPID
-PIDFile=/run/wmbusmeters/wmbusmeters.pid
-
-[Install]
-WantedBy=multi-user.target
-EOF
-
-if diff $OLD_WMBS $CURR_WMBS 1>/dev/null
-then
-    echo "systemd: no changes to $CURR_WMBS"
-else
-    echo "systemd: updated $CURR_WMBS"
-    SYSTEMD_NEEDS_RELOAD=true
-fi
-
-OLD_WMBAS=~/old.wmbusmeters@.service.backup
-CURR_WMBAS="$ROOT"/lib/systemd/system/wmbusmeters@.service
-if [ -f $CURR_WMBAS ]
-then
-    echo "systemd: removing $CURR_WMBAS"
-    echo "systemd: backing up $CURR_WMBAS to here: $OLD_WMBAS"
-    cp $CURR_WMBAS $OLD_WMBAS 2>/dev/null
-    rm $CURR_WMBAS
-    SYSTEMD_NEEDS_RELOAD=true
-fi
-
-####################################################################
-##
-## Remove any existing /etc/udev/rules.d/99-wmbus-usb-serial.rules
-## The new wmbuseters daemon is not going to use these.
-##
-
-if [ -f "$ROOT"/etc/udev/rules.d/99-wmbus-usb-serial.rules ]
-then
-    echo "udev: removing "$ROOT"/etc/udev/rules.d/99-wmbus-usb-serial.rules"
-    echo "udev: backup stored here: ~/old.wmbusmeters-wmbus-usb-serial.rules.backup"
-    cp "$ROOT"/etc/udev/rules.d/99-wmbus-usb-serial.rules ~/old.wmbusmeters-wmbus-usb-serial.rules.backup
-    rm "$ROOT"/etc/udev/rules.d/99-wmbus-usb-serial.rules
-    UDEV_NEEDS_RELOAD=true
-fi
-
-if [ "$SYSTEMD_NEEDS_RELOAD" = "true" ]
-then
-    echo
-    echo
-    echo "You need to reload systemd configuration! Please do:"
-    echo "sudo systemctl daemon-reload"
-fi
-
-if [ "$UDEV_NEEDS_RELOAD" = "true" ]
-then
-    echo
-    echo
-    echo "You need to reload udev configuration! Please do:"
-    echo "sudo udevadm control --reload-rules"
-    echo "sudo udevadm trigger"
-fi
+ROOT=$ROOT /bin/sh ./scripts/install_systemd_service.sh