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How To Completely Uninstall QEMU from Your Computer

Ubuntu 17

QEMU is a generic and open-source machine emulator and virtualizer that is very useful for running operating systems and software developed for one machine on a different machine. However, there may be instances where you need to uninstall QEMU from your computer. This article will guide you through the process of completely uninstalling QEMU from your system.

Quick Answer

To completely uninstall QEMU from your computer, you can use the Terminal to remove the package and its dependencies. Simply run the command "sudo apt-get remove –auto-remove qemu" to remove QEMU and its dependencies, and "sudo apt-get purge –auto-remove qemu" to purge all associated configuration and data. Verify the uninstallation by checking the list of installed packages or running the "qemu" command in the Terminal.

Step 1: Open the Terminal

The Terminal is a command line interface where you can input commands directly to your computer’s operating system. You can open the terminal by searching for it in your system’s application menu or by using the keyboard shortcut Ctrl + Alt + T.

Step 2: Uninstall QEMU

Once you have the Terminal open, you can uninstall QEMU by running the following command:

sudo apt-get remove qemu

In this command, sudo is a prefix that allows you to run commands with administrative privileges. apt-get is the package handling utility in Ubuntu that handles packages. remove is the command to remove a package, and qemu is the name of the package you want to remove.

Step 3: Remove QEMU and its Dependencies

If you want to remove QEMU and its dependencies, use the following command:

sudo apt-get remove --auto-remove qemu

The --auto-remove option tells apt-get to remove any dependencies that were installed with the qemu package and are no longer needed.

Step 4: Purge All Configuration and Data Associated with QEMU

If you want to purge all the configuration and data associated with QEMU, you can use the following command:

sudo apt-get purge --auto-remove qemu

The purge command removes the package and any configuration files associated with it. The --auto-remove option, as explained above, removes any dependencies that are no longer needed.

Step 5: Verify the Uninstallation

After executing these commands, QEMU should be completely removed from your system. You can verify this by checking the list of installed packages in your package manager or by running the qemu command in the Terminal to see if it is still recognized.

If you still see some QEMU packages installed on your machine, such as qemu-kvm or qemu-system-*, you can remove them individually using the sudo apt-get remove command followed by the package name.

Conclusion

By following these steps, you should be able to completely uninstall QEMU from your computer. Remember to always be careful when using the sudo command and only use it when necessary. If you encounter any issues, consult the QEMU documentation or seek help from online forums like Stack Overflow.

Can I uninstall QEMU from my computer?

Yes, you can uninstall QEMU from your computer by following the steps provided in this article.

How do I open the Terminal?

You can open the Terminal by searching for it in your system’s application menu or by using the keyboard shortcut Ctrl + Alt + T.

What is the purpose of the `sudo` command?

The sudo command allows you to run commands with administrative privileges, enabling you to make system-level changes or install/remove packages.

What is the difference between `apt-get remove` and `apt-get purge`?

The apt-get remove command removes the specified package, while the apt-get purge command not only removes the package but also any associated configuration files.

How can I verify if QEMU has been completely uninstalled?

You can verify the uninstallation by checking the list of installed packages in your package manager or by running the qemu command in the Terminal to see if it is still recognized.

Can I remove individual QEMU packages that are still installed?

Yes, you can remove individual QEMU packages, such as qemu-kvm or qemu-system-*, by using the sudo apt-get remove command followed by the package name.

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