I have an Orin Nano Devkit, I have it booting from the NVMe and I have AB booting enabled, my disk looks like this:
Does any one know where I can find documentation on what all the different partitions are (I know some are self explanatory from there names). I have deleted all partitions apart from by rootfs (APP nvme0n1p1) and rootfs_b (APP_B nvme0n1p2) and the esp (nvme0n1p11). After doing this my Orin Nano still boots correctly and its left me a little confused
You can get the detail of how kernel image and DTB work here:
https://docs.nvidia.com/jetson/archives/r36.3/DeveloperGuide/SD/Bootloader/UEFI.html#dtb-support
By default, kernel image is read from rootfs, and kernel DTB is read from the UEFI bootloader partition, which is located in the QSPI memory instead of the main storage device. The behavior can be changed in the UEFI menu as you can see from the figure in the link. Recovery kernel is not used when your device boots up correctly and when you don’t do OTA.
So it is expected that the device still works even though all these partitions are deleted.
Hi Dave, thanks for you help the selection order flowchart is exactly what I was looking for
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