ComfyUI Setup¶

The following describes how to setup "https://www.comfy.org/":ComfyUI on Ubuntu 24.04. Note that a modern GPU is required.

Install ComfyUI¶

ComfyUI will be installed into a Python virtual environment which keeps it somewhat isolated from the rest of the system.

1. Install virtualenv if it is not already installed:
   

   $ sudo apt  install python3.12-venv
   

2. Create virtualenv at /opt/comfyui and then update pip:
   

   $ sudo python3 -m venv /opt/comfyui/
   $ cd /opt/
   $ sudo chown -R dsorber:dsorber comfyui
   $ /opt/comfyui/bin/pip install --upgrade pip
   

3. Install pytorch into the virtualenv (NOTE: this assumes an NVidia GPU and the appropriate drivers must already be installed):
   

   $ cd /opt/comfyui/bin
   $ ./pip install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cu130
   

4. Install ComfyUI within the virtualenv:
   

   $ cd /opt/comfyui
   $ mkdir comfyui
   $ cd comfyui/
   $ git clone https://github.com/comfyanonymous/ComfyUI.git .
   $ /opt/comfyui/bin/pip install -r requirements.txt 
   

5. Download and install Flux model
   • https://huggingface.co/Comfy-Org/flux1-schnell/blob/main/flux1-schnell-fp8.safetensors
6. Copy model to models/checkpoints directory:
   

   mv ~/Downloads/flux1-dev-fp8.safetensors /opt/comfyui/comfyui/models/checkpoints
   

7. Base ComfyUI and Flux model is now installed. To run:
   

   $ cd /opt/comfyui/comfyui
   $ ../bin/python3 main.py 
   

Install ComfyUI Manager¶

ComfyUI Manager adds some nice features to the UI. The most useful feature is the one that will list unknown nodes from a workflow graph along with links to where to install the node.

1. Install ComfyUI Manager:
   

   $ cd /opt/comfyui/comfyui/custom_nodes
   $ git clone https://github.com/ltdrdata/ComfyUI-Manager
   $ cd ComfyUI-Manager
   $ sudo /opt/comfyui/bin/pip install -r requirements.txt
   

2. Restart ComfyUI to use.

Resources¶

Install Guides¶

• https://comfyui-wiki.com/install/install-comfyui/install-comfyui-on-linux
• https://comfyui-wiki.com/tutorial/advanced/flux1-comfyui-guide-workflow-and-examples

Nodes¶

• https://github.com/ltdrdata/ComfyUI-Impact-Pack
• https://github.com/city96/ComfyUI-GGUF
• https://github.com/pythongosssss/ComfyUI-Custom-Scripts
• https://github.com/ssitu/ComfyUI_UltimateSDUpscale
• https://github.com/SeargeDP/ComfyUI_Searge_LLM
• https://github.com/rgthree/rgthree-comfy
• https://github.com/cubiq/ComfyUI_essentials
• https://github.com/chrisgoringe/cg-image-picker
• https://github.com/nkchocoai/ComfyUI-SaveImageWithMetaData
• https://github.com/Smirnov75/ComfyUI-mxToolkit
• https://github.com/edelvarden/ComfyUI-ImageMetadataExtension