Install Ollama on Ubuntu: Step 1 for Local OpenClaw

Before wiring OpenClaw to any model provider, you should first make sure your local model runtime is stable. In this article, we install Ollama on Ubuntu, start the service, pull a model, and run a quick validation.

Why Start with Ollama

In this setup, Ollama is your local LLM serving layer. Once done, you get:

A local API endpoint: http://127.0.0.1:11434
An installed model: qwen2.5:14b
A provider endpoint ready for OpenClaw

1) Update the System

bash

sudo apt update
sudo apt upgrade -y

2) Install Ollama

Run the official installer:

bash

curl -fsSL https://ollama.com/install.sh | sh

Verify installation:

bash

ollama --version

3) Start Ollama Service

bash

ollama serve

Default endpoint:

plain text

http://127.0.0.1:11434

Quick API check:

bash

curl http://127.0.0.1:11434

4) Pull a Model (Qwen2.5:14B)

bash

ollama pull qwen2.5:14b

List local models:

bash

ollama list

5) Run a Validation Prompt

bash

ollama run qwen2.5:14b

Example prompt:

plain text

Explain what local LLMs are.

If you get a normal answer, your local model service is ready.

Hardware Notes and Troubleshooting

Recommended memory: 16GB minimum, 32GB preferred
Suggested OS: Ubuntu 20.04+
Slow pull: check network and model download status
API not reachable: ensure ollama serve is still running

Wrap-up

You now have a working local Ollama environment. In Part 2, we install OpenClaw and prepare it for local model integration.

Install Ollama on Ubuntu: Step 1 for Local OpenClaw

Key Takeaways