Index: usr.sbin/bsdinstall/scripts/script
===================================================================
--- usr.sbin/bsdinstall/scripts/script
+++ usr.sbin/bsdinstall/scripts/script
@@ -114,6 +114,17 @@
 	bsdinstall mount
 fi
 
+# Fetch distributions
+for set in $DISTRIBUTIONS; do
+	f_dprintf "Checking if $set must be fetched"
+	# Should any of the sets be missing, we fetch the distributions set
+	if [ ! -f "$BSDINSTALL_DISTDIR/$set" ]; then
+		test -d "$BSDINSTALL_DISTDIR" || mkdir -p $BSDINSTALL_DISTDIR
+		f_dprintf "$set not found. Starting distfetch..."
+		bsdinstall distfetch
+	fi
+done
+
 # Unpack distributions
 bsdinstall checksum
 for set in $DISTRIBUTIONS; do