--- a/README	Tue Sep 10 13:32:44 2013 +0200
+++ b/README	Thu Oct 10 16:08:13 2013 +0200
@@ -8,7 +8,7 @@
 
     * preinst 
         # mkdir -p $PREFIX/lib/ius-dav-htpasswd
-        # useradd -d $PREFIX/lib/ius-dav-htpasswd -m -r -U -s /bin/true ius-dav-htpasswd
+        # useradd -d $PREFIX/lib/ius-dav-htpasswd -r -U -s /bin/true ius-dav-htpasswd
         # passwd -l ius-dav-htpasswd
 
    * installation
@@ -34,3 +34,7 @@
         # ln -s $PREFIX/bin/ius-dav-htuserexpiry /etc/cron.daily/
 
         # $EDITOR /path/to/ius-dav-htpasswd.conf
+
+    * nach dist-upgrade:
+
+        # ./Build install uninst=1