Hi, I always modify the extlinux.conf to change the boot option like boot from the USB device.
And I need to boot from USB or mmcblk0p2 immediately. Next time need to change back from mmcblk0p1.
In R28.2.1, the file(extlinux.conf) can do that. if I want to boot from USB, just modify the content “root=/dev/mmcblk0p1” to that “root=/dev/sda1” or “root=/dev/mmcblk0p2”.
But the file doesn’t exist in R32.1.
So, how can I do? thx