rootOnNVMe

Switch the rootfs to a SD-Card on the Jetson Xavier NX and Jetson AGX Xavier

These scripts install a service which runs at startup to point the rootfs to a SD-Card installed on /dev/mmcblk1

This is taken from the NVIDIA Jetson AGX Xavier forum https://forums.developer.nvidia.com/t/how-to-boot-from-nvme-ssd/65147/22, written by user crazy_yorik (https://forums.developer.nvidia.com/u/crazy_yorick). Thank you crazy_yorik!

This procedure should be done on a fresh install of the SD card. Install the SD-Card into the slot of the Jetson, and format it gpt, ext4, and setup a partition (p1).

Next, copy the rootfs of the SD card to the SSD

$ ./copy-rootfs-sd.sh

Then, setup the service. This will copy the .service file to the correct location, and install a startup script to set the rootfs to the SD.

$ ./setup-service.sh

After setting up the service, reboot for the changes to take effect.

Boot Notes

These script changes the rootfs to the SD after the kernel image is loaded from the eMMC.