diff --git a/main.ks b/main.ks
index eed9e97..12d4a12 100644
--- a/main.ks
+++ b/main.ks
@@ -28,11 +28,7 @@ keyboard en
 
 %post
 
-# autologin lightdm and session default xfce
-sed -i 's/^#autologin-user=.*/autologin-user=live/' /etc/lightdm/lightdm.conf
-sed -i 's/^#autologin-user-timeout=.*/autologin-user-timeout=0/' /etc/lightdm/lightdm.conf
-sed -i 's/^#user-session=.*/user-session=xfce/' /etc/lightdm/lightdm.conf
-
+# XXX for tests, TODO: move to package
 ln -sfr /etc/X11/xinit/xinitrc.d/50-systemd-user.sh /etc/X11/xinit.d
 
 ### Manually (re)generate initrds
@@ -66,6 +62,15 @@ find /boot -name 'vmlinuz-*' | sort -u | while read -r line ; do
 done
 find /boot -name 'initrd-*' -print
 
+# autologin lightdm and session default xfce
+cat > /etc/anaconda-scripts.d/livecd-init/rosa-xfce-live-lightdm.sh << 'EOF'
+CONF=/etc/lightdm/lightdm.conf.d/rosa-xfce-live.conf
+echo "autologin-user=live" >> "$CONF"
+echo "autologin-user-timeout=0" >> "$CONF"
+echo "user-session=xfce" >> "$CONF"
+EOF
+chmod +x /etc/anaconda-scripts.d/livecd-init/rosa-xfce-live-lightdm.sh
+
 %end
 
 # debug