Boot loader integration to switch between systems:-
The system runs from active copy A.
An update is triggered, either by bringing an update image locally (SD card, USB stick) or over the network.
The update image is flashed/written on copy B, currently inactive.
If the flashing is successful, the boot loader configuration is updated to mark copy B as the active copy.
The system is rebooted, and boots on the new system installed in copy B.
Watchdog used to detect a non-functional system, and fallback to the old copy if necessary.
I wanted to A B partitioning U-boot so please tell the procedure to approach this! i want to follow this approach which is mentioned below-
"A/B scheme: two full copies of the root file system, alternating between active/inactive"