diff --git a/iopsys-ramips/ex300/base-files/etc/fw_env.config b/iopsys-ramips/ex300/base-files/etc/fw_env.config
new file mode 100644
index 0000000000000000000000000000000000000000..52a335a2439ea9817521cd3832b2a356ff02f047
--- /dev/null
+++ b/iopsys-ramips/ex300/base-files/etc/fw_env.config
@@ -0,0 +1,5 @@
+# UBI volume by name, Device offset,	Env. size,	Flash sector size,	Number of sectors
+# we only need name, offset,size for ubi
+/dev/ubi0:env1	0x0		0x1f000
+/dev/ubi0:env2	0x0		0x1f000
+