ORIN AGX /dev/ttyACM0 console


I have seen this sometimes when I open the Orin terminal on the host computer.

minicom -D /dev/ttyACM0 -8 -b 115200

I see this console, where, I can run a command but there is no output

> ls
> ls
> pwd

but after 1 or 2 minutes I get the normal console:

nvidia@tegra-nvidia:~$ ls

Do you know why I get the first console?


hello ManuelLeiva,

may I know what’s your steps in detail to reproduce the issue,
is there any background service occupied serial port?

Hello JerryChang,

I am using Jetapack 5.0.2, to create the rootfs I am using sample fs tool

sudo ./nv_build_samplefs.sh --abi aarch64 --distro ubuntu --flavor minimal --version focal

The rootfs created is copied into rootfs directory:

sudo tar xpf sample_fs.tbz2

Apply L4T binaries:

sudo ./apply_binaries.sh

And I am creating the default user using the script:

sudo ./l4t_create_default_user.sh -u $UBUNTU_USER -p $UBUNTU_PASS -n $UBUNTU_HOSTNAME --accept-license --autologin

After these steps I apply the normal flash command:

sudo ./flash.sh jetson-agx-orin-devkit mmcblk0p1

Then when I open /dev/ttyACM0 sometimes I have this strange console.


There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one.

Hi ManuelLeiva,

We don’t hit this issue on AGX Orin.
Are you only connect one Jetson device on your host?