NVIDIA Jetson Xavier AGX pasa de Bionic Ubuntu Beaver a Focal Fossa

Queremos actualizar un Jetson Xavier AGX 16GB de NVIDIA:

• del Castor Biónico de Ubuntu 18.04 LTS
• a Ubuntu Focal Fossa 20.04 LTS

TLDR : Antes de empezar a actualizar tu Jetson Xavier AGX, tienes que quitar los paquetes chromium y libopencv-dev. Esto debería salvarte de los problemas que se detallan a continuación.

Empecemos por el principio.

Revisa la versión actual

Vamos a mejorar un Jetson Xavier:

moore@neuralux:~$ sudo lshw -C system
neuralux                      
    description: Computer
    product: Jetson-AGX
    serial: 0422128031978
    width: 64 bits
    capabilities: smp cp15_barrier setend swp

avec Ubuntu 18.04.5 LTS:

moore@neuralux:~$ cat /etc/os-release 
NAME="Ubuntu"
VERSION="18.04.5 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.5 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

Podemos usar el módulo pip jetson_stats para obtener las versiones actuales de las bibliotecas:

moore@neuralux:~$ jetson_release
 - NVIDIA Jetson AGX Xavier [16GB]
   * Jetpack 4.2.3 [L4T 32.2.3]
   * NV Power Mode: MODE_30W_ALL - Type: 3
   * jetson_stats.service: active
 - Libraries:
   * CUDA: 10.0.326
   * cuDNN: 7.5.0.56
   * TensorRT: 5.1.6.1
   * Visionworks: 1.6.0.500n
   * OpenCV: 3.3.1 compiled CUDA: NO
   * VPI: NOT_INSTALLED
   * Vulkan: 1.1.70

Puedes comprobar la versión del núcleo:

moore@neuralux:~$ uname -a
Linux neuralux 4.9.140-tegra #1 SMP PREEMPT Tue Nov 5 13:37:19 PST 2019 aarch64 aarch64 aarch64 GNU/Linux

Pre-upgrade

Primero debes actualizar todos los paquetes antes de hacer una actualización importante.

Si intentas una actualización “do-release-upgrade”, obtendrás este error:

Checking for a new Ubuntu release
Please install all available updates for your release before upgrading.

Comienza resincronizando los archivos de índice del paquete desde su :

moore@neuralux:~$ sudo apt update

Actualice todos sus paquetes :

moore@neuralux:~$ sudo apt upgrade -y

Limpiar los paquetes no utilizados :

moore@neuralux:~$ sudo apt autoremove

Reiniciar :

moore@neuralux:~$ sudo systemctl reboot

Vuelva a conectar e inicie la actualización de la distribución:

moore@neuralux:~$ sudo do-release-upgrade
...
Updating repository information

Third party sources disabled

Some third party entries in your sources.list were disabled. You can
re-enable them after the upgrade with the 'software-properties' tool
or your package manager.

To continue please press [ENTER]
...
Unpacking libattr1:arm64 (1:2.4.48-5) over (1:2.4.47-2build1) ...
Errors were encountered while processing:            
 /tmp/apt-dpkg-install-hSThiV/00-chromium-browser_1%3a85.0.4183.83-0ubuntu0.20.04.2_arm64.deb
Exception during pm.DoInstall():  E:Sub-process /usr/bin/dpkg returned an error code (1)
...
Errors were encountered while processing:
 chromium-browser-l10n

Upgrade complete 

The upgrade has completed but there were errors during the upgrade 
process. 

To continue please press [ENTER]

Enlevez chromium :

moore@neuralux:~$ sudo apt-get remove --purge chromium-browser chromium-browser-l10n -y

Actualizar los paquetes :

moore@neuralux:~$ sudo apt upgrade -y

Eliminar libopencv-dev :

moore@neuralux:~$ sudo dpkg --purge --force-all libopencv-dev

Reparar la instalación :

moore@neuralux:~$ apt --fix-broken install

Revisa los paquetes restantes :

moore@neuralux:~$ apt list --upgradable
Listing... Done
orca/focal-updates 3.36.2-1ubuntu1~20.04.1 all [upgradable from: 3.28.0-3ubuntu1]
N: There are 2 additional versions. Please use the '-a' switch to see them.

Actualización del paquete orca :

moore@neuralux:~$ sudo apt install orca -y

Limpia los paquetes del sistema :

moore@neuralux:~$ sudo apt autoremove -y

Finalmente reinicie el sistema:

moore@neuralux:~$ sudo systemctl reboot

Conecta con el Xavier :

moore@laptop:~$ ssh neuralux
Welcome to Ubuntu 20.04.1 LTS (GNU/Linux 4.9.140-tegra aarch64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage
This system has been minimized by removing packages and content that are
not required on a system that users do not log into.

To restore this content, you can run the 'unminimize' command.

0 updates can be installed immediately.
0 of these updates are security updates.

Last login: Mon Nov 22 23:45:40 2020 from 192.168.1.10
moore@neuralux:~$ 

Comprueba la versión del sistema:

moore@neuralux:~$ cat /etc/os-release 
NAME="Ubuntu"
VERSION="20.04.1 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.1 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal

También hice una actualización de un Jetson Nano y tuve los mismos errores de cromo y de opencv. No fue una actualización sin problemas, pero el sistema fue migrado a Foca Fossa.

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