-cd "$DAILY_DIR"
-echo "---------------------------" >> "$DAILY_DIR"/.timestamp_link
-for flavour in grml-medium_squeeze grml-medium_wheezy grml-medium_sid grml-small_squeeze grml-small_wheezy grml-small_sid \
- grml64-medium_squeeze grml64-medium_wheezy grml64-medium_sid grml64-small_squeeze grml64-small_wheezy grml64-small_sid \
- grml64_squeeze grml64_wheezy grml64_sid grml_squeeze grml_wheezy grml_sid ; do
+if [ -z "$FLAVOURS" ] ; then
+ echo "Error: \$FLAVOURS is not set. Exiting." >&2
+ exit 2
+fi
+
+if ! cd "$MIRROR_DIRECTORY" ; then
+ echo "Error: could not change directory to $MIRROR_DIRECTORY" >&2
+ exit 1
+fi
+
+echo "---------------------------" >> "$MIRROR_DIRECTORY"/.timestamp_link
+for flavour in $FLAVOURS; do