diff --git a/board/czechlight/common/mk-empty-cfg-fs.sh b/board/czechlight/common/mk-empty-cfg-fs.sh
new file mode 100755
index 0000000..90966c7
--- /dev/null
+++ b/board/czechlight/common/mk-empty-cfg-fs.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+CFG_FS=${BINARIES_DIR}/cfg.ext4
+rm -f ${CFG_FS}
+${HOST_DIR}/sbin/mkfs.ext4 -L cfg -O ^64bit -e panic ${CFG_FS} 256M