Failed reading sectors; BOOT_MAX_IMG_SECTORS=1024 - too small?

[Sunil vignesh]

Hi, I have enabled DFU in my custom ble_hid_keyboard in NCS v1.6.1

when i copy the same project and placed in another name after that build successful but while running through error as

D: Event: NRF_CLOCK_EVENT_LFCLKSTARTED
D: lfclk: Clock started
*** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
I: Starting bootloader
W: Failed reading sectors; BOOT_MAX_IMG_SECTORS=1024 - too small?
E: Image in the primary slot is not valid!
E: Unable to find bootable image

[Vidar Berg]

Hi,

when i copy the same project and placed in another name after that build successful but while running through error as

 Can you please list the exact steps of what you did? I assume it worked before you renamed the project? And please note that it's important that you program the correct hex file when you have MCUBoot enabled: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/mcuboot/readme-ncs.html

[Sunil vignesh]

Yes, as you said it works before the project copy and rename.

sometimes When i do Project -> reload

and run cmake.

I not getting this error

i think this error is from sdk itself

why because i used v1.4.2  there no these king of issue.

also found this git https://github.com/zephyrproject-rtos/zephyr/issues/24243

[Vidar Berg]

Have you found a consistent way to reproduce this, and can you verify that MCUBoot is still enabled in your project when it fails?

[Sunil vignesh]

How to check that MCUBOOT is enabled

Here i will show you the things i made

cMake

#
# Copyright (c) 2019 Nordic Semiconductor ASA
#
# SPDX-License-Identifier: LicenseRef-BSD-5-Clause-Nordic
#
cmake_minimum_required(VERSION 3.13.1)
list(APPEND mcuboot_OVERLAY_CONFIG
  "${CMAKE_CURRENT_SOURCE_DIR}/child_image/mcuboot.conf"
  )
find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
project(NONE)
# bt_services/*.c MLX90393/*.c NFC/*.c
FILE(GLOB app_sources src/*.c ../driverSource/bt_services/*.c ../driverSource/MLX90393/*.c ../driverSource/NFC/*.c)
# NORDIC SDK APP START
target_sources(app PRIVATE ${app_sources})
# NORDIC SDK APP END

zephyr_library_include_directories(.)

prj.conf

#CONFIG_NCS_SAMPLES_DEFAULTS=y

#BT config
CONFIG_BT=y
CONFIG_BT_DEBUG_LOG=y
CONFIG_BT_MAX_CONN=2
CONFIG_BT_MAX_PAIRED=1
CONFIG_BT_SMP=y
CONFIG_BT_TINYCRYPT_ECC=y
CONFIG_BT_L2CAP_TX_BUF_COUNT=5
CONFIG_BT_PERIPHERAL=y

#Devie Name config
CONFIG_BT_DEVICE_NAME="Glosdex Headset"
CONFIG_BT_DEVICE_APPEARANCE=961

#Device Info service config
CONFIG_BT_DIS=y
CONFIG_BT_DIS_PNP=y
CONFIG_BT_DIS_MANUF="Glosdex"
CONFIG_BT_DIS_PNP_VID_SRC=2
CONFIG_BT_DIS_PNP_VID=0x1915
CONFIG_BT_DIS_PNP_PID=0xEEEF
CONFIG_BT_DIS_PNP_VER=0x0100

#Battery Service Config
CONFIG_BT_BAS=y

#HID config
CONFIG_BT_HIDS=y
CONFIG_BT_HIDS_MAX_CLIENT_COUNT=1
CONFIG_BT_HIDS_DEFAULT_PERM_RW_ENCRYPT=y
CONFIG_BT_GATT_UUID16_POOL_SIZE=40
CONFIG_BT_GATT_CHRC_POOL_SIZE=20

CONFIG_BT_LL_SOFTDEVICE_DEFAULT=y
CONFIG_BT_CONN_CTX=y

# Enable the NUS service
CONFIG_BT_NUS=y

# Enable bonding
CONFIG_BT_SETTINGS=y
CONFIG_FLASH=y
CONFIG_FLASH_PAGE_LAYOUT=y
CONFIG_FLASH_MAP=y
CONFIG_NVS=y
CONFIG_SETTINGS=y
CONFIG_BT_SETTINGS_CCC_STORE_ON_WRITE=y

# Enable DK LED and Buttons library
CONFIG_DK_LIBRARY=y

# This example requires more workqueue stack
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048

# Enable the UART driver
CONFIG_UART_ASYNC_API=y
CONFIG_NRFX_UARTE1=y
CONFIG_SERIAL=y		

CONFIG_GPIO=y

# Make sure printk is not printing to the UART console
CONFIG_CONSOLE=y
CONFIG_RTT_CONSOLE=n
CONFIG_UART_CONSOLE=y
CONFIG_PRINTK=y

CONFIG_HEAP_MEM_POOL_SIZE=2048
CONFIG_MAIN_STACK_SIZE=4096

# Config logger
CONFIG_LOG=y
CONFIG_LOG_BUFFER_SIZE=2048
CONFIG_LOG_PRINTK=y
CONFIG_USE_SEGGER_RTT=y
CONFIG_LOG_BACKEND_RTT=y
CONFIG_LOG_BACKEND_UART=n

CONFIG_ASSERT=y

# Clock configuration
CONFIG_CLOCK_CONTROL_NRF_K32SRC_SYNTH=y

# I2C Enable
CONFIG_I2C=y
CONFIG_SENSOR=y

# NFC configuration
CONFIG_NFC_OOB_PAIRING=n

# Pair Keys
CONFIG_BT_KEYS_OVERWRITE_OLDEST=y

# Optimize for debug
CONFIG_DEBUG_OPTIMIZATIONS=y

# Added
CONFIG_BT_USER_DATA_LEN_UPDATE=y
CONFIG_BT_USER_PHY_UPDATE=y
CONFIG_BT_GAP_AUTO_UPDATE_CONN_PARAMS=n

CONFIG_BT_BUF_ACL_RX_SIZE=251
CONFIG_BT_GATT_CLIENT=y
CONFIG_BT_ATT_PREPARE_COUNT=2
CONFIG_BT_CONN_TX_MAX=10
CONFIG_BT_L2CAP_TX_BUF_COUNT=10
CONFIG_BT_L2CAP_TX_MTU=247
CONFIG_BT_L2CAP_DYNAMIC_CHANNEL=y
CONFIG_BT_CTLR_PHY_2M=y
CONFIG_BT_CTLR_RX_BUFFERS=2
CONFIG_BT_BUF_ACL_TX_COUNT=10
CONFIG_BT_BUF_ACL_TX_SIZE=251
CONFIG_BT_CTLR_DATA_LENGTH_MAX=251

# Added for FOTA
CONFIG_BOOTLOADER_MCUBOOT=y
CONFIG_MCUMGR=y
CONFIG_MCUMGR_CMD_OS_MGMT=y
CONFIG_MCUMGR_CMD_IMG_MGMT=y
CONFIG_MCUMGR_SMP_BT=y
CONFIG_MCUBOOT_UTIL_LOG_LEVEL_WRN=y

in child_image/mcuboot.conf

CONFIG_CLOCK_CONTROL_NRF_K32SRC_SYNTH=y
#CONFIG_CLOCK_CONTROL_NRF_CALIBRATION_MAX_SKIP=0
#CONFIG_CLOCK_CONTROL_NRF_CALIBRATION_TEMP_DIFF=0
CONFIG_BOOT_SWAP_USING_SCRATCH=y
CONFIG_BOOT_MAX_IMG_SECTORS=1024

CONFIG_RTT_CONSOLE=y
CONFIG_UART_CONSOLE=y
CONFIG_LOG=y
CONFIG_LOG_DEFAULT_LEVEL=4
CONFIG_LOG_OVERRIDE_LEVEL=4