-fcopy -v /etc/apt/grml.key
-fcopy -v /etc/apt/preferences
-fcopy -v /etc/apt/apt.conf.d/20pdiffs
-fcopy -v /etc/apt/apt.conf.d/15grml-live
+fcopy -i -B -v -r /etc/apt
+
+# install packages from a repository of a specific date
+if [ -n "${WAYBACK_DATE:-}" ] ; then
+ echo "Wayback date '$WAYBACK_DATE' identified, enabling for snapshot.debian.org usage."