Jetson Orin NX A/B boot

Hello

I’m using the Orin NX with A/B Boot.

I can successfully change the bootslot in userspace with nvbootctrl
https://docs.nvidia.com/jetson/archives/r36.4/DeveloperGuide/SD/Bootloader/UpdateAndRedundancy.html#id2

However, I do not find any documentation about the fail-safe EFI system partition? What is its purpose?

Boot flow with Slot A is:
Firmware A → UEFI A → ESP A → ROOTFS A

Boot flow with Slat B is:
Firmware B → UEFI B → ESP A → ROOTFS B

Is this intentional behaviour?
Many thanks

hello burak2017,

The UEFI uses an OS loader to load the filesystem. This loader is in the ESP partition which is on the mass storage.

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