Custom Overlay file ignored JP6.1

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

Hi,
I wish to use custom kernel dtb and overlay dtbo with my custom carrier board.
I followed this post:

I added FDT and OVERLAY entries to the target /boot/extlinux/extlinux.conf.
After that the kernel dtb is modified without problem by just copy the modified kernel dtb into /boot/dtb
The problem is that the .dtbo is left unchanged even after I change it.

As a last effort I tried to flash the target again in order to try and update the overlays and got the following messages during flash:

[21:24:41:627] Jetson System firmware version 36.4.0-gcid-37537400 date 2024-09-13T04:02:39+00:␍␊

[21:24:41:635] 00␍␊

[21:24:41:635] ESC to enter Setup.␍␊

[21:24:41:638] F11 to enter Boot Manager Menu.␍␊

[21:24:41:640] Enter to continue boot.␍␊

[21:24:47:219] EFI stub: Booting Linux Kernel…␍␊

[21:24:47:253] EFI stub: ERROR: Invalid header detected on UEFI supplied FDT, ignoring …␍␊

[21:24:47:263] EFI stub: Generating empty DTB␍␊

[21:24:47:288] EFI stub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID device path␍␊

[21:24:47:299] EFI stub: Exiting boot services…␍␊

Which causes the flash process to fail since there is a timeout while waiting the target to boot and exposing ssh

3

hello bsp_dev,

may I know what’s the modification you’ve done?
you may refer to r36.4 release note of [4.2. Device Registration] for reference.

4

Hi @JerryChang ,

Thank you for your help!
We decided to go with kernel DTB only.

Thanks for your patience

6

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