Backup and Restore

The tutorial will guide you how to backup and restore system image.

Note

The target machine must be connected to your Host PC over USB and entered into recovery mode.

Model	Target Name
RQX-590	jetson-agx-orin-rqx59x
RQX-580	rqx_580
RQX-58G	rqx_58g
NPN-1 (Pico Nano)	npn1
NPN-2 (Pico AGX NX)	npn2

1. Cloning the Image

cd <driver package>
sudo ./flash.sh -r -k APP -G backup.img <target name> mmcblk0p1

This command actually creates two image files: backup.img and backup.img.raw.

backup.img.raw contains raw data read from the target’s APP partition, it has exactly the same size as APP partition.

backup.img is a sparsed image, it has a much smaller size and can speed up the restoring step.

2. Copy the backup image to flashing directory

copy the backup.img file to the bootloader folder.

sudo cp backup.img bootloader/system.img

3. Restoring the Image

The recommended way to restore multiple units with different serial numbers is to save the image above as “system.img” and use the head L4T flashing script, flash.sh, with the -r option (to reuse your backed-up system.img without rebuilding the vanilla image from scratch):

sudo ./flash.sh -r -k APP <target name> mmcblk0p1

Note

Each flashing procedure might take 8 ~ 10 minutes.