diff --git a/.github/workflows/debuild.yml b/.github/workflows/debuild.yml
index 14790847..f401736c 100644
--- a/.github/workflows/debuild.yml
+++ b/.github/workflows/debuild.yml
@@ -34,6 +34,8 @@ jobs:
           gpg --keyserver $KEYSERVER --recv-key $CLOUD_KEY_ID
           sudo -E gpg -v --output "$KEYFILE" --export $CLOUD_KEY_ID
           sudo apt-get update
+      - name: update repo information
+        run: sudo apt-get update
       - name: install devscripts
         run: sudo apt-get install equivs devscripts pipx hub
       - name: install dependencies
@@ -90,6 +92,8 @@ jobs:
     env:
       PBRT: /var/cache/pbuilder
     steps:
+      - name: update repo information
+        run: sudo apt-get update
       - name: install pbuilder
         run: |
           sudo apt-get install pbuilder qemu-user-static \
diff --git a/debian/rules b/debian/rules
index ae971152..588e4dc3 100755
--- a/debian/rules
+++ b/debian/rules
@@ -29,10 +29,10 @@ override_dh_auto_test: ;
 endif
 
 execute_after_dh_auto_build:
-	pandoc -o vzlogger.1 -s -t man debian/vzlogger.1.md
+	pandoc -o vzlogger.8 -s -t man debian/vzlogger.8.md
 
 execute_after_dh_clean:
-	rm -f vzlogger.1
+	rm -f vzlogger.8
 
 %:
 	dh $@ 
diff --git a/debian/vzlogger.1.md b/debian/vzlogger.8.md
similarity index 93%
rename from debian/vzlogger.1.md
rename to debian/vzlogger.8.md
index e9634525..4daf7762 100644
--- a/debian/vzlogger.1.md
+++ b/debian/vzlogger.8.md
@@ -1,3 +1,6 @@
+% VZLOGGER(8) Volkszaehler project | System management commands
+% Joachim Zobel <jz-2017@heute-mogen.de>
+
 # NAME
 
 vzlogger -- A tool to read and log measurements of a wide variety of smart meters and sensors 
diff --git a/debian/vzlogger.manpages b/debian/vzlogger.manpages
index de642587..8e2cd876 100644
--- a/debian/vzlogger.manpages
+++ b/debian/vzlogger.manpages
@@ -1 +1 @@
-vzlogger.1
+vzlogger.8
diff --git a/debian/vzlogger.postinst b/debian/vzlogger.postinst
old mode 100644
new mode 100755
index 2b8da16b..d940740f
--- a/debian/vzlogger.postinst
+++ b/debian/vzlogger.postinst
@@ -1,25 +1,30 @@
 #!/bin/sh -e
 
+set -e
+
 case "$1" in
     configure)
-	if ! id vzlogger > /dev/null 2>&1 ; then
-	    adduser --system --no-create-home --home /nonexistent \
-		--group --disabled-password --shell /bin/false \
-		vzlogger
-            usermod -a -G dialout vzlogger
-	fi
-
-	touch /var/log/vzlogger.log
-	chown vzlogger:adm /var/log/vzlogger.log
+    if ! id vzlogger > /dev/null 2>&1 ; then
+        adduser --quiet --system --no-create-home --home /nonexistent \
+            --group --disabled-password --shell /bin/false \
+            vzlogger
+        usermod -a -G dialout vzlogger
+    fi
+
+    touch /var/log/vzlogger.log
+    chown vzlogger:adm /var/log/vzlogger.log
     ;;
 
     abort-upgrade|abort-remove|abort-deconfigure)
     ;;
 
     *)
-	echo "$0 called with unknown argument \`$1'" >&2
-	exit 1
+    echo "$0 called with unknown argument \`$1'" >&2
+    exit 1
     ;;
 esac
 
 #DEBHELPER#
+
+exit 0
+
diff --git a/debian/vzlogger.postrm b/debian/vzlogger.postrm
new file mode 100755
index 00000000..6e04ca87
--- /dev/null
+++ b/debian/vzlogger.postrm
@@ -0,0 +1,27 @@
+#!/bin/sh -e
+
+set -e
+
+case "$1" in
+    purge)
+    rm -f /var/log/vzlogger.log*
+    deluser --quiet --system vzlogger
+    delgroup --quiet --system vzlogger
+    ;;
+
+    remove|abort-install|abort-upgrade|disappear)
+    ;;
+
+    upgrade|failed-upgrade)
+    ;;
+
+    *)
+    echo "$0 called with unknown argument \`$1'" >&2
+    exit 1
+    ;;
+esac
+
+#DEBHELPER#
+
+exit 0
+