[i.MX 8MN DDR4] how to build rootfs, kernel and how to flash rootfs, kernel image

[bryan_hong]

Hello

I execute 'bitbake fsl-image-af-littlekernel' but below file did not re-generated.
   - fsl-image-af-littlekernel-imx8mnddr4ab2-20210814061807.rootfs.wic.bz2

how to re-generate rootfs file?

and let me know how to build only kernel image, and how to flash that kernel image to evk kit.

thanks
Bryan

[bryan_hong · Accepted solution]

@igorpadykov The documentation you mentioned doesn't explain how to update rootfs in detail.

Re-generate rootfs 
bitbake -c cleansstate fsl-image-af-littlekernel

bitbake fsl-image-af-littlekernel

Kernel modify, build, flash

bitbake -c compile -f linux-imx

bitbake linux-imx

bitbake -c cleansstate fsl-image-af-littlekernel

bitbake fsl-image-af-littlekernel

I think the above should be a guide.

[igorpadykov]

Hi Hong

for building and programming procedures one can refer to     i.MX Yocto Project User’s Guide​

i.MX Linux User’s Guide​

Best regards
igor