Environment
BSP: L6.1.22_2.0.0
Platform: i.MX93
Links:
https://github.com/NXP/swupdate-scripts
https://github.com/nxp-imx-support/meta-swupdate-imx
The AN13872 provides us the swupdate yocto layer, swupdate-scripts and test steps, but there is still much to add. The purpose of this knowledge base is to provide customized advice.
1.How to port meta-swupdate-imx to any yocto version you want?
As meta-swupdate-imx only provide kirkstone version, we can upgrade or degrade it based on this version. We will take L6.1.22_2.0.0 porting steps as an example.
1.1 Download Yocto layer
cd imx-yocto-bsp/sources
git clone https://github.com/sbabic/meta-swupdate.git -b mickledore
git clone https://github.com/nxp-imx-support/meta-swupdate-imx.git1.2 Modify Yocto layer
imx-yocto-bsp/sources/meta-swupdate-imx/conf/layer.conf
You can find swupdate version in imx-yocto-bsp/sources/meta-swupdate/recipes-support/swupdate/
1.3 Handle patches in meta-swupdate-imx/recipes-bsp/u-boot/files/
CONFIG_ENV_OFFSET_REDUND=CONFIG_ENV_OFFSET+CONFIG_ENV_SIZE
sources/meta-swupdate-imx/recipes-bsp/u-boot/u-boot-imx_%.bbappend
2.How to flash base image?
Use uuu or dd command, just like common imx-image-xxx
3.swupdate-scripts porting suggestions
3.1 Partition table
You can modify partition table refer the size of images. For different soc, the first offset is different. If you are porting i.MX8MP based on iMX8MM, the offset should be 32K.
3.2 Some errors
3.2.1 This error indicates that you need enlarge size of rootfs.
e2fsck 1.45.5 (07-Jan-2020)
The filesystem size (according to the superblock) is 887599 blocks
The physical size of the device is 768000 blocks
Either the superblock or the partition table is likely to be corrupt!
Abort<y>?
3.2.2 You need upgrade e2fsck verison.
e2fsck 1.46.5 (30-Dec-2021)
/home/nxf65025/imx-yocto-bsp/swupdate-scripts/base_image_assembling/slota/core-image-base-imx93-11x11-lpddr4x- evk.ext4 has unsupported feature(s): FEATURE_C12
e2fsck: Get a newer version of e2fsck!
/home/nxf65025/imx-yocto-bsp/swupdate-scripts/base_image_assembling/slota/core-image-base-imx93-11x11-lpddr4x- evk.ext4: ********** WARNING: Filesystem still has errors **********
resize2fs 1.46.5 (30-Dec-2021)
resize2fs: Filesystem has unsupported feature(s) (/home/nxf65025/imx-yocto-bsp/swupdate-scripts/base_image_asssolution:
wget https://mirrors.edge.kernel.org/pub/linux/kernel/people/tytso/e2fsprogs/v1.47.0/e2fsprogs-1.47.0.tar.xz
tar -xf e2fsprogs-1.47.0.tar.xz
cd e2fsprogs-1.47.0/
./configure
make -j16
sudo make install
3.2.3 mtools
/home/nxf65025/imx-yocto-bsp/swupdate-scripts/base_image_assembling/../utils/utils.sh: line 58: mdir: command not found
/home/nxf65025/imx-yocto-bsp/swupdate-scripts/base_image_assembling/../utils/utils.sh: line 66: mcopy: command not found
/home/nxf65025/imx-yocto-bsp/swupdate-scripts/base_image_assembling/../utils/utils.sh: line 66: mcopy: command not found
/home/nxf65025/imx-yocto-bsp/swupdate-scripts/base_image_assembling/../utils/utils.sh: line 68: mdir: command not foundsolution: sudo apt-get install mtools
