How to clone Orin NX APP partition to host PC

[user49922]

Hi NVIDIA.

I’m using Orin NX 16GB with JetPack 5.1. I’d like to clone the APP partition to my PC.

I tried using https://docs.nvidia.com/jetson/archives/r35.2.1/DeveloperGuide/text/SD/FlashingSupport.html#to-clone-a-jetson-device-and-flash, so I executed:

sudo ./flash.sh -r -k APP -G clone.img p3509-a02+p3767-0000 nvme0n1p1

But it stuck at

[ 8.7803 ] tegrarcm_v2 --chip 0x23 0 --ismb2applet

and never proceed on.

Then I tried the method in https://docs.nvidia.com/jetson/archives/r35.2.1/DeveloperGuide/text/SD/FlashingSupport.html#to-back-up-and-restore-a-jetson-device.

I entered:

sudo ./tools/backup_restore/l4t_backup_restore.sh -b p3509-a02+p3767-0000

and it gave me this error:

fdisk: cannot open /dev/mmcblk0: No such file or directory

So I guess that both these tools are designed for EMMC devices? Is there any approach to clone an NVMe drive?

The logs are uploaded.

clone.txt (61.5 KB)
backup.txt (79.3 KB)

[user49922]

Can I modify some of the scripts to make these two methods work for NVMe?

[KevinFFF]

Hi user49922,

Sorry, there is currently no official way of the clone and restore feature for NVMe drive.
It’s only available for internal storage.

We will feedback this feature request to internal team.
I would let you know if there’s any available approach.

[lhoang]

Yeah you can modify nvbackup_partitions.sh and nvrestore_partitions.sh to make it work for NVMe SSD. l4t_backup_restore.sh works by recovery boot the device to a initial ramdisk, which can communicate with the host via SSH. The host basically runs nvbackup_partitions.sh to backup images and nvrestore_partitions.sh to restore those image though SSH and NFS. You can start with modifying those script by replacing all mmcblk0 reference with nvme0n1

[user49922]

Thanks for replying. I followed your advice and it seems to work fine. I’ve got nvme0n1p1.tar.gz under Linux_for_Tegra/tools/backup_restore/images now.