Debian GNU/Linux 13 (trixie) on Mac Mini M2

Post Installation Guide

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(1) Enable Networking

Edit the network interfaces file:

sudo nano /etc/network/interfaces

Add the following:

auto end0
iface end0 inet dhcp

Then restart networking:

sudo systemctl restart networking

Quick Checklist

Command	Expected Result
ip a	Has IP ✅
ip route	Has default route ✅
ping 8.8.8.8	Works ✅
ping deb.debian.org	Works ✅

Install firmware and tools:

sudo apt update
sudo apt install firmware-misc-nonfree network-manager

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(2) Switch to NetworkManager

sudo systemctl disable networking
sudo systemctl enable NetworkManager
sudo systemctl start NetworkManager

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(3) Fix: nmcli end0 Showing as Unmanaged

Check the device state:

ip link show end0
nmcli device show end0

Output will show end0 as DOWN and STATE: unmanaged.

Set managed=true in the NetworkManager config:

sudo sed -i 's/managed=false/managed=true/' /etc/NetworkManager/NetworkManager.conf
sudo systemctl restart NetworkManager

Create a connection profile:

sudo nmcli con add type ethernet ifname end0 con-name end0 connection.interface-name end0

If duplicate connections appear, clean up:

sudo nmcli con delete end0
sudo nmcli con reload