Error during installation on dietpi : LAN interface not found. Upgrading the system first

[LoloPicolo]

Actual behavior

I would like to install your project but it fails
current configuration is

Expected behavior

I would like to finalize install

Configuration parameters (if changed in the script)

no change

Logs

::: Checking for tun module
::: Insert tun module if existing (for Raspbian Jessie Lite)
::: Modprobe module (no check - useless if already loaded)
::: Checking for tun module
tun 45056 0
::: Checking if LAN interface already exists
::: LAN interface not found. Upgrading the system first
::: Upgrading the distro. Be patient

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

Lecture des listes de paquets…
Construction de l'arbre des dépendances…
Lecture des informations d'état…
Calcul de la mise à jour…
0 mis à jour, 0 nouvellement installés, 0 à enlever et 0 non mis à jour.
::: Upgrading the distro. Be patient
::: Please reboot and run the script again

on screen

::: Checking for tun module
::: Checking if LAN interface already exists
./pihotspot.sh: ligne 156: /sbin/ifconfig: Aucun fichier ou dossier de ce type
::: LAN interface not found. Upgrading the system first
::: Upgrading the distro. Be patient
::: Please reboot and run the script again

Your environment

• Hardware : Raspberry Pi 3 Model B (armv71)
• Operating system: DietPi latest version 6.26.3
• nginx, mariadb, hostap installed

Additional comments

Ethernet cable is plugged and connected to network
Thanks for your work. if i can help to install it on DietPi and support,

[pihomeserver]

I don't understand what the problem is. The script displays a request for a reboot and a restart of the script. You did it ?

Also i see that error /sbin/ifconfig not found that's not the expected behavior so i guess that's an issue with the distro

[LoloPicolo]

It seems that for DietPi some packages are missing. i use the following before use your script and i move forward on installation
Before install your script on a DietPi, you need to execute the following
apt-get install collectd
apt-get install net-tools

currently i need to understand why isc-dhcp-server and proftp services are not working anymore.

[pihomeserver]

Collectd is already includedin the list. I can add net-tools in case of if needed

[yelooooo422]

::: Activating the LAN interface
:::
::: Something went wrong with the last command. Please check the log file

Can someone help me with this? I've been trying to look for a solution and reinstall the script but I still got the same error.