Overlayfs on L4T 35.4.1

Hi Nvidia,
I am developing the read-only fs of Orin NX on L4T 35.4.1, and I noticed that Nvidia has enabled this feature on 36.2 Root File System — NVIDIA Jetson Linux Developer Guide 1 documentation

Overlayfs on Root File System

Could you please help to share the guide or patch to how to porting this feature on L4T 35.4.1?


Hi vincent.hsueh,

Are you using the devkit or custom board for Orin NX?

It seems the new feature in JP6 and need several implements in bootloader and also init script.
There are also SW stack/architecture changes between JP5 and JP6.
If you need this feature, please updating your board to JP6(L4T R36.x).

Hi Kevin,
We are using custom board. Because we also need OTA feature and we know OTA feature not ready on L4T R36.x and the important is we already decided to using 35.4.1 for stability of our application.

Is there has any patchs or commit could share with me?

You could refer to the nv_overlayfs_config script and also extract the l4t_initrd.img to know how we implement for this.

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