Installing Realtek RTL8125 drivers on Proxmox

script.sh

# Install build dependencies + appropriate linux-headers package
apt install -y dkms build-essential pve-headers-$(uname -r)

# Download the latest r8125 dkms package
curl -s https://api.github.com/repos/awesometic/realtek-r8125-dkms/releases/latest |
  grep "browser_download_url.*amd64.deb" |
  cut -d : -f 2,3 |
  tr -d \" |
  wget -i -

# Install it
dpkg -i realtek-r8125-dkms*.deb

# Blacklist the old driver
echo "blacklist r8169" > /etc/modprobe.d/blacklist-r8169.conf

# Update initramfs
update-initramfs -u

echo "Finished, please reboot now!"