Force installing stock config. Don't stop ...

debian-config

@@ -400,7 +400,7 @@ while true; do
 			[[ $? = 0 ]] && overlayroot-chroot sed -i "s/^overlayroot=.*/overlayroot=\"\"/" /etc/overlayroot.conf && \
 			overlayroot-chroot rm /etc/update-motd.d/97-overlayroot && reboot
 		else
-			debconf-apt-progress -- apt-get -y --no-install-recommends install overlayroot
+			debconf-apt-progress -- apt-get -o Dpkg::Options::="--force-confnew" -y --no-install-recommends install overlayroot
 			echo '#!/bin/bash' > /etc/update-motd.d/97-overlayroot
 			echo 'if [ -n "$(mount | grep -w tmpfs-root)" ]; then echo -e "[\e[0m \e[1mremember: root is in virtual read only mode\e[0m ]";fi' >> /etc/update-motd.d/97-overlayroot
 			dialog --title "Root overlay" --backtitle "$BACKTITLE" --yes-label "Reboot" \