I am implementing factory-reset by using meta-readonly-rootfs-overlay. It required to update kernel command-line, and I tried as Yocto document:
"The Linux kernel command line is typically specified in the machine config using the
APPEND += "printk.time=y initcall_debug debug" "
Although added the APPEND in imx8mmevk.conf and local.conf also, kernel command-line was not updated.
Is this correct way to update kernel command-line?