Flash using existing system.img and secure boot

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

I have two boards, board A and board B, both of them have burned in SBKPKC mode.
I flashed board A and it booted correctly, then I flashed board B using ./flash.sh -r ...... that use existing system.img, it was flashed successfully, but when booting it say no network connection.

I know that when using existing system.img that its /boot was created base board A the second board can not boot using the content of /boot but it should fallback to kernel boot and boot from partitions why it cant boot from partitions and fallback to netwotk boot?

3

hello Sralavi,

did you meant both of them using identical PKC/SBK keys?
what’s the real use-case of image re-flashing? for instance, are you trying to skip building system.img to speed-up image flashing process?


you may using l4t_initrd_flash.sh to generate a massflash package using the --no-flash and --massflash options.
please refer to $OUT/Linux_for_Tegra/tools/kernel_flash/README_initrd_flash.txt of [Workflow 8: Secure initrd Massflash] for the steps to create mfi package.

4

Yes. I am trying to speedup flashing. Each device uses a different set of PKC/SBK keys.

5

I think workflow-8 consider similar SBK/PKC keys for all boards.

6

hello Sralavi,

please flash the target separately since they’re having different set of PKC/SBK keys.

8

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