Increasing the rootfs size on a stm32mp157f-dk2

[stefan_r]

Hi,

i´m using a stm32mp157-dk2 and want to increase the size of the rootfs partition to 2GB.

To create the image follwed the instructions from https://wiki.st.com/stm32mpu/index.php/STM32MP1_Distribution_Package#Installing_the_OpenSTLinux_distribution .

Before running the bitbake command changed as suggested in https://community.st.com/s/question/0D53W00000EaFPwSAN/rootfs-size-increasing-on-avenger96

1) /meta-st/meta-st-stm32mp/conf/machine/include/st-nachine-common-stm32mp.inc

IMAGE_ROOTFS_MAXSIZE ?= "2097152"
ROOTFS_PARTITION_SIZE ?= "2097152"

2) /meta-st/meta-st-stm32mp/recipes-devtools/sdcard-raw-tools/sdcard-raw-tools/create_sdcard_from_flashlayout.sh

DEFAULT_RAW_SIZE=4096
DEFAULT_ROOTFS_PARTITION_SIZE=2097152

Then while running the bitbake command an error showed up "The initramfs size 181612 (K) exceeds INITRAMFS_MAXSIZE: 131072 (K) You can set INITRAMFS_MAXSIZE a larger value.... ". To avoid this error i increased INITRAMFS_MAXSIZE to 262144 in layers/openembedded-core/meta/conf/bitbake.conf

After restarting the process with bitbake the following errors showed up:

 

Please let me know, if i missed some steps to increase the rootfs size or did something fundamentally wrong.

Thanks,

stefan_r

[Olivier GALLIEN · Accepted solution]

Hi @stefan_r​ ,

Your ROOTFS looks still bigger than what you set as max size : 2017660 vs 2097152.

Try to update st-machine-common-stm32mp.inc with :

IMAGE_ROOTFS_MAXSIZE ?= "2017660" or bigger

in this case create_sdcard_from_flashlayout.sh is not called/concerned.

Hope it help

Olivier

[stefan_r]

Hi Olivier,

i increased the IMAGE_ROOTFS_MAXSIZE to a value bigger than "2017660" and bitbaked my image with this change.

I tried to do this previously, but that time i also added multiple EXTRA_IMAGE_FEATURES in the local.conf which i seems to have caused the Warning with package uboot (can be seen on the picture above). I think that the reason for this warning also caused, that i couldn´t flash the image successful. After a new try to build openstlinux with a fresh repo, where i only added some packages in the local.conf an increased the rootfs it builds and the image can be flashed successful.

Thanks for your help!

stefan_r