I'm new to using Linux, specifically Ubuntu, and I've been trying to install Docker. I followed all the steps to get it set up and managed to see Docker's hello message at first. However, when I try to launch it, I encounter an error saying that I have an unsupported file when I use the command on the file `./docker-desktop-amd64.deb`. I'm not sure what I'm doing wrong or how to proceed with launching Docker.
4 Answers
Make sure to follow the official installation guide closely. You can find it here: [Docker Installation on Ubuntu](https://docs.docker.com/engine/install/ubuntu/). That guide will walk you through the steps you need to follow to get everything set up properly.
Just to clarify, think of the `.deb` file like an installer for Docker, similar to an `.exe` file on Windows. You need to install it using the command `dpkg -i docker-desktop-amd64.deb`. Once you do that, you can then run Docker commands like `docker run hello-world` to verify that it works.
Also, as you're getting familiar with Linux, just a tip: it helps to check online for troubleshooting. If you see an error message, you can copy that and search it on Google for more context. Include some details or screenshots if you ask for help in forums.
It sounds like you're trying to run the `.deb` file directly, but that's not how you should operate Docker. After you've installed Docker properly using the `.deb` file with the command `dpkg -i file.deb`, you should just use the command `docker` to run it. For example, type `docker run hello-world` in your terminal, and if that gives you the hello message, then it's all set up correctly!
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