Flash Xavier NX modules with a clone image from a reference module

[roland.kajatin]

Hello,

I’m following the guidelines here to flash the L4T binaries and sample filesystem to an external NVMe SSD using the production Xavier NX SoC in the devkit carrier board.

I can successfully flash it using the tools/kernel_flash/l4t_initrd_flash.sh script instead of the regular flash.sh script.

My question is about creating a clone of this image (I’ll be configuring it after the flashing process) and then I want to use this clone to flash other Xaviers (this is to prepare devices for deployment in production).

There is some information about how to create a clone, which in fact works even for cloning the APP partition off of the SSD using sudo ./flash.sh -r -k APP -G <clone> <board> nvme0n1p1.

My question is:
Is it possible to flash other modules using external NVMe SSDs with this cloned image?

Using the flash.sh script with the -r flag doesn’t work since I need to flash with initrd. I’ve been trying different combinations of flags passed to tools/kernel_flash/l4t_initrd_flash.sh without luck.

[WayneWWW]

Hi,

Actually, only few partitions are on the NVMe. So you can directly use below command.

img2simg /dev/nvme0n1p1 system.img.ext → this is create the backup image

blkdiscard /dev/nvme0n1p1
simg2img system.img.ext /dev/nvme0n1p1 → this is to apply the backup image to partition.

If you want to use initrd_flash to flash this cloned out image to other device’s NVMe. You can just replace the system.img.ext during the workflow of initrd_flash. There should be one step that you can see this image inside the folder.