How can I mount the nvme ssd as the rootfs？

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Xavier
1

I want to boot from Nvme ssd，so I copy the rootfs to the Nvme ssd（filesystem format is ext4 ），and I have build blk_dev_nvme in kernel. I changed the dtb file chosen node,set bootargs: root=/dev/nvme0n1p1 …

when the xavier power on,the kernel has loaded and runnig ,but the rootfs loading failed.

the dmesg | grep root show : No root-device:Mount failed

in the shell I can find /dev/nvme0n1p1 device.

what should I do to solve this problem? or where need to set to auto mount root device ?

2

Hi qinyyuu,

Please refer to [url]https://devtalk.nvidia.com/default/topic/1039527/jetson-agx-xavier/how-to-boot-from-nvme-ssd-/[/url]

3

Hi kayccc，
This link discusses the topic I have read, does not solve the problem

4

In the shell ： sudo mkfs.ext4 /dev/nvme0n1p1
sudo cp -a <your_dir>/Linux_for_Tegra/rootfs/* <mount_dir>

and I changed the bootargs by dtb file,in the flash.sh +1306 cmdline+=“root=/dev/nvme0n1p1 rw rootwait rootfstype=ext4”

and running : sudo ./flash.sh -r -k kernel-dtb jetson-xavier mmcblk0p1 update the dtb file.

the performance as stated above.

other places need to change？

5

Unfortunately, nvme driver in bootloader is not yet supported.

6

Is there any hope in the further this feature will be added. The current memory limitation is too small to build needed software. In building the software my software I have used over 100MB of drive attached to the Nano I am testing with. The feature needs to be added ASAP!!!

1 Like
7

reference
https://devtalk.nvidia.com/default/topic/1066556/jetson-agx-xavier/how-to-use-rootfs-in-nvme-ssd-/post/5401782
working on my jetson xavier+nvme ssd

on jetson xavier

sudo parted /dev/nvme0n1
mklabel gpt
mkpart primary 2048s 100%
quit 

sudo mkfs.ext4 /dev/nvme0n1p1

sudo blkid /dev/nvme0n1p1
my device partuuid
/dev/nvme0n1p1: UUID="b11f5460-ec67-4f4a-9c41-8cffd4b11df4" TYPE="ext4" PARTLABEL="primary" PARTUUID="532ead91-c15f-4412-83b5-e5675ff21773"

sudo dd if=/dev/mmcblk0p1 of=/dev/nvme0n1p1

on linux host

echo '532ead91-c15f-4412-83b5-e5675ff21773' > bootloader/l4t-rootfs-uuid.txt

sudo ./flash.sh jetson-xavier external

on jetson xavier

sudo resize2fs /dev/nvme0n1p1