Fixing the no such file or directory Error When Running Lauterbach's t32tcpusb in Docker

Описание: Discover how to effectively run Lauterbach's `t32tcpusb` from a Docker container by resolving common file path issues and choosing the right image.
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This video is based on the question https://stackoverflow.com/q/77522545/ asked by the user 'Nippey' ( https://stackoverflow.com/u/1554114/ ) and on the answer https://stackoverflow.com/a/77522765/ provided by the user 'Nippey' ( https://stackoverflow.com/u/1554114/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Troubleshooting Lauterbach t32tcpusb in Docker: A Guide for Beginners

If you're new to Docker and trying to set up Lauterbach's t32tcpusb to manage multiple debuggers, you may have encountered an error stating no such file or directory when running your container. This error can be frustrating, especially when you believe the path you provided is correct. Don’t worry — this guide will walk you through the solution to get your t32tcpusb running smoothly in your Docker container.

Understanding the Problem

You want to containerize the t32tcpusb, which is not designed for multiple instances, to work with Lauterbach debuggers. You're running into issues because your Docker setup is failing to execute the t32tcpusb binary. You have written a docker-compose.yml configuration that appears to be correct, but you are still getting the error during execution:

[[See Video to Reveal this Text or Code Snippet]]

Why Does This Error Occur?

This specific error usually indicates that the file system inside the Docker container cannot find the command or the shared libraries it requires. Since you mentioned using the alpine image, this is crucial to identify.

The Solution: Use the Right Docker Image

After some troubleshooting, a simple yet effective solution emerged: use the ubuntu image instead of alpine. Here's why this change works:

Compatibility: t32tcpusb is compiled to run on Ubuntu, which means it depends on libraries available in an Ubuntu environment. The alpine image, being minimal, does not have these libraries.

Revised docker-compose.yml Configuration

Here’s the modified version of your docker-compose.yml with the necessary changes:

[[See Video to Reveal this Text or Code Snippet]]

Steps to Follow

Update your Docker file: Make sure to replace the image in your docker-compose.yml file from alpine to ubuntu.

Rebuild your Docker container: Run the following command in your terminal:

[[See Video to Reveal this Text or Code Snippet]]

Test the Connection: Once the container is running, try connecting to the Lauterbach debugger via the TCP port you specified.

Conclusion

Running Lauterbach's t32tcpusb in a Docker container may seem challenging at first, especially when facing file path issues. By simply using the ubuntu image that matches the binary's compiled environment, you can solve the no such file or directory problem. This change ensures that all the required libraries are present, leading to a successful execution of your debugger service.

Happy debugging with Docker!