Thanks for your advice.
In my opinion two things are common practice:Yes, the UBI/UBIFS is used in NAND partitions, I guess you alluded
there is no need use the backup, right?
2) Using an A/B scheme for updating and using a well tested framework forIf I do need to use a backup, it won't need another NAND chip, it will
be another UBI/UBIFS partition. But I would like as simple as possible
if no backup is a common practice.
Thank you very much.