diff --git a/arch/arm/src/stm32l4/Make.defs b/arch/arm/src/stm32l4/Make.defs
index d9f3fb8341..561cfedf28 100644
--- a/arch/arm/src/stm32l4/Make.defs
+++ b/arch/arm/src/stm32l4/Make.defs
@@ -114,7 +114,7 @@ endif
 CHIP_ASRCS  =
 CHIP_CSRCS  = stm32l4_allocateheap.c stm32l4_exti_gpio.c stm32l4_gpio.c
 CHIP_CSRCS += stm32l4_idle.c stm32l4_irq.c stm32l4_lowputc.c stm32l4_rcc.c
-CHIP_CSRCS += stm32l4_serial.c stm32l4_start.c stm32l4_waste.c
+CHIP_CSRCS += stm32l4_serial.c stm32l4_start.c stm32l4_waste.c stm32l4_uid.c
 CHIP_CSRCS += stm32l4_spi.c stm32l4_i2c.c stm32l4_lse.c stm32l4_pwr.c
 
 ifneq ($(CONFIG_SCHED_TICKLESS),y)
diff --git a/arch/arm/src/stm32l4/stm32l4_uid.c b/arch/arm/src/stm32l4/stm32l4_uid.c
new file mode 100644
index 0000000000..4547dcc456
--- /dev/null
+++ b/arch/arm/src/stm32l4/stm32l4_uid.c
@@ -0,0 +1,63 @@
+/************************************************************************************
+ * arch/arm/src/stm32l4/stm32l4_uid.c
+ *
+ *   Copyright (C) 2015 Marawan Ragab. All rights reserved.
+ *   Author: Marawan Ragab <marawan31@gmail.com>
+ *           dev@ziggurat9.com
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <chip/stm32l4_memorymap.h>
+
+#include "stm32l4_uid.h"
+
+#ifdef STM32L4_SYSMEM_UID
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+void stm32l4_get_uniqueid(uint8_t uniqueid[12])
+{
+  int i;
+
+  for (i = 0; i < 12; i++)
+    {
+      uniqueid[i] = *((uint8_t*)(STM32L4_SYSMEM_UID)+i);
+    }
+}
+
+#endif /* STM32L4_SYSMEM_UID */
diff --git a/arch/arm/src/stm32l4/stm32l4_uid.h b/arch/arm/src/stm32l4/stm32l4_uid.h
new file mode 100644
index 0000000000..50805c1509
--- /dev/null
+++ b/arch/arm/src/stm32l4/stm32l4_uid.h
@@ -0,0 +1,52 @@
+/************************************************************************************
+ * arch/arm/src/stm32l4/stm32l4_uid.h
+ *
+ *   Copyright (C) 2015 Marawan Ragab. All rights reserved.
+ *   Author: Marawan Ragab <marawan31@gmail.com>
+ *           dev@ziggurat9.com
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __ARCH_ARM_SRC_STM32L4_STM32L4_UID_H
+#define __ARCH_ARM_SRC_STM32L4_STM32L4_UID_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <stdint.h>
+
+/************************************************************************************
+ * Public Function Prototypes
+ ************************************************************************************/
+
+void stm32l4_get_uniqueid(uint8_t uniqueid[12]);
+
+#endif /* __ARCH_ARM_SRC_STM32L4_STM32L4_UID_H */
diff --git a/configs/stm32l476vg-disco/include/nsh_romfsimg.h b/configs/stm32l476vg-disco/include/nsh_romfsimg.h
new file mode 100644
index 0000000000..6bf0d908f0
--- /dev/null
+++ b/configs/stm32l476vg-disco/include/nsh_romfsimg.h
@@ -0,0 +1,89 @@
+unsigned char romfs_img[] = {
+  0x2d, 0x72, 0x6f, 0x6d, 0x31, 0x66, 0x73, 0x2d, 0x00, 0x00, 0x01, 0x80,
+  0x42, 0x56, 0x48, 0x93, 0x4e, 0x53, 0x48, 0x49, 0x6e, 0x69, 0x74, 0x56,
+  0x6f, 0x6c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x49,
+  0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0xd1, 0xff, 0xff, 0x97,
+  0x2e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x20,
+  0x00, 0x00, 0x00, 0x00, 0xd1, 0xd1, 0xff, 0x80, 0x2e, 0x2e, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00,
+  0x68, 0x2d, 0x96, 0x03, 0x69, 0x6e, 0x69, 0x74, 0x2e, 0x64, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa0,
+  0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0xd1, 0xff, 0xff, 0x00,
+  0x2e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x6a, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x9a, 0x8d, 0x9c, 0xaa, 0xfc, 0x72, 0x63, 0x53, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x23, 0x20, 0x73, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x20, 0x72, 0x63, 0x53,
+  0x20, 0x66, 0x69, 0x6c, 0x65, 0x3b, 0x20, 0x79, 0x6f, 0x75, 0x20, 0x6d,
+  0x75, 0x73, 0x74, 0x20, 0x72, 0x75, 0x6e, 0x20, 0x74, 0x6f, 0x6f, 0x6c,
+  0x73, 0x2f, 0x67, 0x65, 0x6e, 0x72, 0x6f, 0x6d, 0x66, 0x73, 0x20, 0x3c,
+  0x6e, 0x75, 0x74, 0x74, 0x78, 0x20, 0x64, 0x69, 0x72, 0x3e, 0x20, 0x66,
+  0x72, 0x6f, 0x6d, 0x20, 0x77, 0x69, 0x74, 0x68, 0x69, 0x6e, 0x20, 0x74,
+  0x68, 0x69, 0x73, 0x0a, 0x23, 0x20, 0x6c, 0x6f, 0x63, 0x61, 0x74, 0x69,
+  0x6f, 0x6e, 0x20, 0x74, 0x6f, 0x20, 0x63, 0x6f, 0x6e, 0x76, 0x65, 0x72,
+  0x74, 0x20, 0x74, 0x68, 0x69, 0x73, 0x20, 0x66, 0x69, 0x6c, 0x65, 0x20,
+  0x74, 0x6f, 0x20, 0x6e, 0x73, 0x68, 0x5f, 0x72, 0x6f, 0x6d, 0x66, 0x73,
+  0x69, 0x6d, 0x67, 0x2e, 0x68, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x69, 0x6e,
+  0x63, 0x6c, 0x75, 0x73, 0x69, 0x6f, 0x6e, 0x20, 0x69, 0x6e, 0x20, 0x74,
+  0x68, 0x65, 0x20, 0x62, 0x75, 0x69, 0x6c, 0x64, 0x0a, 0x0a, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20,
+  0x00, 0x00, 0x00, 0x00, 0xd1, 0xd1, 0xff, 0xe0, 0x2e, 0x2e, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00
+};
+unsigned int romfs_img_len = 1024;
diff --git a/configs/stm32l476vg-disco/include/rcS.template b/configs/stm32l476vg-disco/include/rcS.template
new file mode 100644
index 0000000000..ba8d905ae4
--- /dev/null
+++ b/configs/stm32l476vg-disco/include/rcS.template
@@ -0,0 +1,3 @@
+# sample rcS file; you must run tools/genromfs <nuttx dir> from within this
+# location to convert this file to nsh_romfsimg.h for inclusion in the build
+
diff --git a/configs/stm32l476vg-disco/nsh/defconfig b/configs/stm32l476vg-disco/nsh/defconfig
index 4f889363a7..1ad001dd86 100644
--- a/configs/stm32l476vg-disco/nsh/defconfig
+++ b/configs/stm32l476vg-disco/nsh/defconfig
@@ -50,7 +50,7 @@ CONFIG_ARCH_HAVE_HEAPCHECK=y
 # Subsystem Debug Options
 #
 # CONFIG_DEBUG_BINFMT is not set
-CONFIG_DEBUG_FS=y
+# CONFIG_DEBUG_FS is not set
 # CONFIG_DEBUG_GRAPHICS is not set
 # CONFIG_DEBUG_LIB is not set
 # CONFIG_DEBUG_MM is not set
@@ -398,7 +398,8 @@ CONFIG_NSH_MMCSDMINOR=0
 #
 CONFIG_LIB_BOARDCTL=y
 # CONFIG_BOARDCTL_RESET is not set
-# CONFIG_BOARDCTL_UNIQUEID is not set
+CONFIG_BOARDCTL_UNIQUEID=y
+CONFIG_BOARDCTL_UNIQUEID_SIZE=12
 # CONFIG_BOARDCTL_TSCTEST is not set
 # CONFIG_BOARDCTL_ADCTEST is not set
 # CONFIG_BOARDCTL_PWMTEST is not set
@@ -696,16 +697,15 @@ CONFIG_FS_WRITABLE=y
 # CONFIG_FS_NAMED_SEMAPHORES is not set
 CONFIG_FS_MQUEUE_MPATH="/var/mqueue"
 # CONFIG_FS_RAMMAP is not set
-CONFIG_FS_FAT=y
-# CONFIG_FAT_LCNAMES is not set
-# CONFIG_FAT_LFN is not set
-# CONFIG_FS_FATTIME is not set
-# CONFIG_FAT_FORCE_INDIRECT is not set
-# CONFIG_FAT_DMAMEMORY is not set
-# CONFIG_FAT_DIRECT_RETRY is not set
+# CONFIG_FS_FAT is not set
 # CONFIG_FS_NXFFS is not set
-# CONFIG_FS_ROMFS is not set
-# CONFIG_FS_TMPFS is not set
+CONFIG_FS_ROMFS=y
+CONFIG_FS_TMPFS=y
+CONFIG_FS_TMPFS_BLOCKSIZE=512
+CONFIG_FS_TMPFS_DIRECTORY_ALLOCGUARD=64
+CONFIG_FS_TMPFS_DIRECTORY_FREEGUARD=128
+CONFIG_FS_TMPFS_FILE_ALLOCGUARD=512
+CONFIG_FS_TMPFS_FILE_FREEGUARD=1024
 # CONFIG_FS_SMARTFS is not set
 # CONFIG_FS_BINFS is not set
 CONFIG_FS_PROCFS=y
@@ -853,14 +853,7 @@ CONFIG_EXAMPLES_BUTTONS_NAME7="Button 7"
 # CONFIG_EXAMPLES_CXXTEST is not set
 # CONFIG_EXAMPLES_DHCPD is not set
 # CONFIG_EXAMPLES_ELF is not set
-CONFIG_EXAMPLES_FSTEST=y
-CONFIG_EXAMPLES_FSTEST_MAXNAME=32
-CONFIG_EXAMPLES_FSTEST_MAXFILE=8192
-CONFIG_EXAMPLES_FSTEST_MAXIO=347
-CONFIG_EXAMPLES_FSTEST_MAXOPEN=2
-CONFIG_EXAMPLES_FSTEST_MOUNTPT="/mnt/n25qxxx"
-CONFIG_EXAMPLES_FSTEST_NLOOPS=1
-# CONFIG_EXAMPLES_FSTEST_VERBOSE is not set
+# CONFIG_EXAMPLES_FSTEST is not set
 # CONFIG_EXAMPLES_FTPC is not set
 # CONFIG_EXAMPLES_FTPD is not set
 # CONFIG_EXAMPLES_HELLO is not set
@@ -895,6 +888,7 @@ CONFIG_EXAMPLES_NSH_CXXINITIALIZE=y
 # CONFIG_EXAMPLES_RANDOM is not set
 # CONFIG_EXAMPLES_RGBLED is not set
 # CONFIG_EXAMPLES_RGMP is not set
+# CONFIG_EXAMPLES_ROMFS is not set
 # CONFIG_EXAMPLES_SENDMAIL is not set
 # CONFIG_EXAMPLES_SERIALBLASTER is not set
 # CONFIG_EXAMPLES_SERIALRX is not set
@@ -905,9 +899,11 @@ CONFIG_EXAMPLES_NSH_CXXINITIALIZE=y
 # CONFIG_EXAMPLES_SMP is not set
 # CONFIG_EXAMPLES_TCPECHO is not set
 # CONFIG_EXAMPLES_TELNETD is not set
+# CONFIG_EXAMPLES_THTTPD is not set
 # CONFIG_EXAMPLES_TIFF is not set
 # CONFIG_EXAMPLES_TOUCHSCREEN is not set
 # CONFIG_EXAMPLES_WEBSERVER is not set
+# CONFIG_EXAMPLES_UNIONFS is not set
 # CONFIG_EXAMPLES_USBSERIAL is not set
 # CONFIG_EXAMPLES_USBTERM is not set
 # CONFIG_EXAMPLES_WATCHDOG is not set
@@ -999,7 +995,6 @@ CONFIG_NSH_DISABLE_LOSMART=y
 # CONFIG_NSH_DISABLE_LS is not set
 # CONFIG_NSH_DISABLE_MB is not set
 # CONFIG_NSH_DISABLE_MKDIR is not set
-# CONFIG_NSH_DISABLE_MKFATFS is not set
 # CONFIG_NSH_DISABLE_MKFIFO is not set
 # CONFIG_NSH_DISABLE_MKRD is not set
 # CONFIG_NSH_DISABLE_MH is not set
@@ -1038,6 +1033,15 @@ CONFIG_NSH_FILEIOSIZE=512
 # CONFIG_NSH_DISABLESCRIPT is not set
 # CONFIG_NSH_DISABLE_ITEF is not set
 # CONFIG_NSH_DISABLE_LOOPS is not set
+CONFIG_NSH_ROMFSETC=y
+# CONFIG_NSH_ROMFSRC is not set
+CONFIG_NSH_ROMFSMOUNTPT="/etc"
+CONFIG_NSH_INITSCRIPT="init.d/rcS"
+CONFIG_NSH_ROMFSDEVNO=0
+CONFIG_NSH_ROMFSSECTSIZE=64
+# CONFIG_NSH_DEFAULTROMFS is not set
+CONFIG_NSH_ARCHROMFS=y
+# CONFIG_NSH_CUSTOMROMFS is not set
 
 #
 # Console Configuration
diff --git a/configs/stm32l476vg-disco/src/stm32_appinit.c b/configs/stm32l476vg-disco/src/stm32_appinit.c
index 79cdbb9f3c..ec485fa1f1 100644
--- a/configs/stm32l476vg-disco/src/stm32_appinit.c
+++ b/configs/stm32l476vg-disco/src/stm32_appinit.c
@@ -53,6 +53,7 @@
 
 #include <stm32l4.h>
 #include <stm32l4_uart.h>
+#include <stm32l4_uid.h>
 
 #include <arch/board/board.h>
 #include <arch/board/boardctl.h>
@@ -308,3 +309,16 @@ int board_ioctl(unsigned int cmd, uintptr_t arg)
     return OK;
 }
 #endif
+
+#if defined(CONFIG_BOARDCTL_UNIQUEID)
+int board_uniqueid(uint8_t *uniqueid)
+{
+  if (uniqueid == 0)
+    {
+      return -EINVAL;
+    }
+
+  stm32l4_get_uniqueid(uniqueid);
+  return OK;
+}
+#endif