How to Flash Backup for Multiple Jetson Xavier NX Devices with Different KEK2 Encryption Keys

Robotics & Edge Computing Jetson & Embedded Systems Jetson Xavier NX
1

I have 2 jetsons with secure boot enabled but they have different KEK2 keys so how can I reflash the backup of jetson 1 to jetson 2 and vice versa?
Jetpack 5.1.4 - Jetson Xavier NX - EMMC

3

hello user34150,

you need to generate individual backup image per device as long as you used different keys.

4

If I have a Jetson Xavier NX without secure boot, and then I create a backup and reflash it on a Jetson with secure boot, replacing eks.img, will it work?

5

hello user34150,

please refer to Tool for EKB Generation.
you should run the EKB generation tool to generate EKS image separately.

6

How to flash with ekb do you have any specific instructions for the case of jetson xavier NX emmx?

7

hello user34150,

you must perform a full flash since partition update has disabled on fused device.
otherwise, you may running with flash script to update eks partition. (eks_t194.img)
for instance, $ sudo ./flash.sh -k eks jetson-xavier-nx-devkit-emmc mmcblk0p1

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