"Proxmox VM Debian 12: AUTOMATIC1111 Stable Diffusion Setup Guide"

"Log in as root, install sudo, add your user to the sudo group, 
"then exit the root shell and reconnect via SSH using your regular username."


step 1

#!/bin/bash
set -e

echo "Step 1: Update & upgrade the system"
sudo apt update && sudo apt upgrade -y

echo "Step 2: Remove any existing NVIDIA drivers"
sudo apt autoremove --purge -y nvidia*

echo "Step 3: Install required packages for NVIDIA and build dependencies"
sudo apt install -y build-essential linux-headers-$(uname -r) wget libssl-dev zlib1g-dev \
libncurses5-dev libncursesw5-dev libreadline-dev libsqlite3-dev libgdbm-dev libdb5.3-dev \
libbz2-dev libexpat1-dev liblzma-dev tk-dev libffi-dev uuid-dev

echo "Step 4: Blacklist Nouveau driver"
echo "blacklist nouveau" | sudo tee /etc/modprobe.d/blacklist-nouveau.conf
echo "options nouveau modeset=0" | sudo tee -a /etc/modprobe.d/blacklist-nouveau.conf

echo "Step 5: Update initramfs"
sudo update-initramfs -u

echo "Step 6: Download NVIDIA driver 575.64"
sudo wget -O /tmp/NVIDIA-Linux-x86_64-575.64.run https://download.nvidia.com/XFree86/Linux-x86_64/575.64/NVIDIA-Linux-x86_64-575.64.run

echo "Step 7: Make NVIDIA installer executable"
sudo chmod +x /tmp/NVIDIA-Linux-x86_64-575.64.run

echo "Step 8: Run NVIDIA installer (follow the prompts!)"
sudo /tmp/NVIDIA-Linux-x86_64-575.64.run

echo "Step 9: Install Vulkan libraries"
sudo apt install -y libvulkan1 vulkan-tools vulkan-validationlayers

echo "Step 10: Verify Vulkan installation"
if ! vulkaninfo >/dev/null 2>&1; then
    echo "Warning: vulkaninfo command failed. Please verify Vulkan installation."
fi

echo "Step 11: Download and install Python 3.10.6 if not installed"
PYTHON_VERSION="3.10.6"
if ! command -v python3.10 &>/dev/null; then
    echo "Downloading Python $PYTHON_VERSION source..."
    cd /usr/src
    sudo wget https://www.python.org/ftp/python/$PYTHON_VERSION/Python-$PYTHON_VERSION.tgz
    sudo tar xzf Python-$PYTHON_VERSION.tgz

    cd Python-$PYTHON_VERSION
    echo "Configuring and compiling Python $PYTHON_VERSION..."
    sudo ./configure --enable-optimizations
    sudo make altinstall
else
    echo "Python 3.10 already installed."
fi

echo "Step 12: Setup update-alternatives for python3"
sudo update-alternatives --install /usr/bin/python3 python3 /usr/local/bin/python3.10 1

echo "If multiple python3 versions are installed, select the default manually with:"
echo "  sudo update-alternatives --config python3"

echo "Installed Python version:"
python3.10 --version

echo "Setup complete! Please reboot your system to apply NVIDIA driver changes."

REBOOT 

Sudo reboot now


+++++++++++++++++++++


Step2


#!/bin/bash
set -e

# Variables
PYTHON_CMD="python3.10"
REPO_DIR="$HOME/stable-diffusion-webui"

echo "Step 1: Install git if not installed"
sudo apt install -y git

echo "Step 2: Clone or update Stable Diffusion WebUI repository"
if [ ! -d "$REPO_DIR" ]; then
    echo "Cloning repository..."
    git clone https://github.com/AUTOMATIC1111/stable-diffusion-webui.git "$REPO_DIR"
else
    echo "Repository exists, updating..."
    cd "$REPO_DIR"
    git pull origin master
fi

echo "Step 3: Configure environment variables for listening and python command"

cd "$REPO_DIR"

# Add environment variable to webui-user.sh if missing
if ! grep -q 'export COMMANDLINE_ARGS="--listen"' webui-user.sh; then
    echo 'export COMMANDLINE_ARGS="--listen"' >> webui-user.sh
fi

if ! grep -q "python_cmd=\"$PYTHON_CMD\"" webui-user.sh; then
    echo "python_cmd=\"$PYTHON_CMD\"" >> webui-user.sh
fi

echo "Step 4: Run the WebUI"
./webui.sh


+++++++++++++++++++++++++++

Step 3


When stablediff has finished, Open second terminal and copy past below.



#!/bin/bash
set -e

# Detect the user who should run the service
if [ "$SUDO_USER" ]; then
    USER="$SUDO_USER"
else
    USER=$(whoami)
fi

SD_DIR="/home/$USER/stable-diffusion-webui"
SERVICE_NAME="stable-diffusion.service"
SERVICE_PATH="/etc/systemd/system/$SERVICE_NAME"

echo "Creating systemd service for Stable Diffusion WebUI..."

sudo tee "$SERVICE_PATH" > /dev/null <<EOF
[Unit]
Description=Stable Diffusion WebUI
After=network.target

[Service]
Type=simple
User=$USER
WorkingDirectory=$SD_DIR
ExecStart=$SD_DIR/webui.sh
Restart=on-failure
RestartSec=10

[Install]
WantedBy=multi-user.target
EOF

echo "Reloading systemd daemon..."
sudo systemctl daemon-reload

echo "Enabling $SERVICE_NAME to start on boot..."
sudo systemctl enable $SERVICE_NAME

echo "Starting $SERVICE_NAME now..."
sudo systemctl start $SERVICE_NAME

echo "Service status:"
sudo systemctl status $SERVICE_NAME --no-pager

echo "Setup complete. Stable Diffusion WebUI will start automatically on boot."