diff --git a/files/apt/20auto-upgrades b/files/apt/20auto-upgrades
index 8d6d7c8..5bf85d3 100644
--- a/files/apt/20auto-upgrades
+++ b/files/apt/20auto-upgrades
@@ -1,2 +1,3 @@
 APT::Periodic::Update-Package-Lists "1";
 APT::Periodic::Unattended-Upgrade "1";
+APT::Periodic::AutocleanInterval "7";
diff --git a/files/apt/50unattended-upgrades b/files/apt/50unattended-upgrades
index a49b2de..bb466a5 100644
--- a/files/apt/50unattended-upgrades
+++ b/files/apt/50unattended-upgrades
@@ -1,10 +1,10 @@
 // ACAQB unattended upgrades configuration file
-Unattended-Upgrade::Origin-Pattern {
-    "o=Debian,n=stretch";
-    "o=Debian,n=stretch-updates";
-    "o=Debian,n=stretch,l=Debian-Security";
-    "o=Debian,n=sid";
+Unattended-Upgrade::Origins-Pattern {
+    "o=Debian,n=${distro_codename}";
+    "o=Debian,n=${distro_codename}-updates";
+    "o=Debian,n=${distro_codename},l=Debian-Security";
 };
 Unattended-Upgrade::Remove-Unused-Dependencies "true";
 Unattended-Upgrade::MinimalSteps "true";
+Unattended-Upgrade::AutoFixInterruptedDpkg "true";
 Acquire::http::Dl-Limit "50";
diff --git a/files/packages.list b/files/packages.list
index e3c43c9..6134120 100644
--- a/files/packages.list
+++ b/files/packages.list
@@ -3,6 +3,7 @@
 pulseaudio
 unzip
 unattended-upgrades
+apt-listchanges
 
 # Desktop
 xorg
diff --git a/files/sources.list b/files/sources.list
deleted file mode 100644
index a80ad2d..0000000
--- a/files/sources.list
+++ /dev/null
@@ -1,3 +0,0 @@
-deb http://ftp.fr.debian.org/debian unstable main contrib non-free
-#deb http://ftp.fr.debian.org/debian unstable-updates main
-#deb http://ftp.fr.debian.org/ unstable/updates main
diff --git a/install.sh b/install.sh
index c2984bc..50cd949 100755
--- a/install.sh
+++ b/install.sh
@@ -87,13 +87,13 @@ configure_drm(){
     then
         message "DRM already done " "warn"
     else
-        cat "drm" >> "$INITRAMFS_CONF_FILE"
+        echo "drm" >> "$INITRAMFS_CONF_FILE"
     fi
     if grep -q "$1" "$INITRAMFS_CONF_FILE"
     then
         message "$1 already done " "warn"
     else
-        cat "$1 modeset=1" >> "$INITRAMFS_CONF_FILE"
+        echo "$1 modeset=1" >> "$INITRAMFS_CONF_FILE"
     fi
 }
 
@@ -133,6 +133,8 @@ process_package_file files/packages.list
 message "Activate unattended upgrades : "
 cp ./files/apt/20auto-upgrades /etc/apt/apt.conf.d/
 cp ./files/apt/50unattended-upgrades /etc/apt/apt.conf.d/
+echo unattended-upgrades unattended-upgrades/enable_auto_updates boolean true | debconf-set-selections
+dpkg-reconfigure -f noninteractive unattended-upgrades
 message "done" "ok"
 
 message "\ninstall custom background images : "