Check the configuration files

Oct 13, 2025 by leolavanderia.com.br 75 views

Issues with Installing VirtualBox Guest Additions in RHEL 9 Server (with GUI)

VirtualBox is a popular virtualization platform that allows users to run multiple operating systems on a single host machine. One of the key features of VirtualBox is the Guest Additions, which provide a range of benefits, including improved performance, enhanced graphics, and increased functionality. However, installing Guest Additions on RHEL 9 Server with a GUI can be a challenging task, especially for those who are new to Linux or VirtualBox. In this article, we will discuss the common issues that users may encounter when trying to install VirtualBox Guest Additions in RHEL 9 Server with a GUI.

Before we dive into the issues and solutions, it's essential to ensure that you have the necessary prerequisites in place. Here are the requirements for installing VirtualBox Guest Additions on RHEL 9 Server with a GUI:

VirtualBox: You need to have VirtualBox installed on your host machine. You can download the latest version from the official VirtualBox website.
RHEL 9 Server: You need to have RHEL 9 Server installed on your guest machine. You can download the latest version from the official Red Hat website.
GUI: You need to have a GUI installed on your RHEL 9 Server guest machine. You can install a GUI using the dnf package manager.
Kernel: You need to have a compatible kernel version installed on your RHEL 9 Server guest machine. The kernel version should be 5.14 or later.

Now that we have covered the prerequisites, let's discuss the common issues that users may encounter when trying to install VirtualBox Guest Additions on RHEL 9 Server with a GUI.

Issue 1: Kernel Module Not Found

One of the most common issues that users may encounter is the "kernel module not found" error. This error occurs when the Guest Additions installer is unable to find the kernel module for the installed kernel version.

Solution: To resolve this issue, you need to ensure that the kernel module is installed and enabled. You can do this by running the following command:

sudo dnf install kernel-modules

After installing the kernel module, you need to enable it by running the following command:

sudo modprobe vboxguest

Issue 2: Guest Additions Not Installed

Another common issue that users may encounter is the "Guest Additions not installed" error. This error occurs when the Guest Additions installer is unable to install the Guest Additions.

Solution: To resolve this issue, you need to ensure that the Guest Additions installer is able to access the necessary dependencies. You can do this by running the following command:

sudo dnf install gcc kernel-devel

After installing the necessary dependencies, you can try installing the Guest Additions again.

Issue 3: Guest Additions Not Configured

A third common issue that users may encounter is the "Guest Additions not configured" error. This error occurs when the Guest Additions installer is unable to configure the Guest Additions.

Solution: To resolve this issue, you need to ensure that the Guest Additions installer is able to access the necessary configuration files. You can do this by running the following command:

sudo dnf install kernel-headers

After installing the kernel headers, you can try configuring the Guest Additions again.

Issue 4: Guest Additions Not Working

A fourth common issue that users may encounter is the "Guest Additions not working" error. This error occurs when the Guest Additions are installed and configured but are not working as expected.

Solution: To resolve this issue, you need to ensure that the Guest Additions are properly configured and that the necessary dependencies are installed. You can do this by running the following command:

sudo dnf install kernel-modules
sudo modprobe vboxguest

After installing the kernel module and enabling it, you can try using the Guest Additions again.

In conclusion, installing VirtualBox Guest Additions on RHEL 9 Server with a GUI can be a challenging task, especially for those who are new to Linux or VirtualBox. However, by following the solutions outlined in this article, you should be able to resolve the common issues that users may encounter when trying to install VirtualBox Guest Additions on RHEL 9 Server with a GUI.

Here are some additional troubleshooting tips that you can use to resolve common issues when installing VirtualBox Guest Additions on RHEL 9 Server with a GUI:

Check the kernel version: Ensure that the kernel version is compatible with the Guest Additions.
Check the kernel module: Ensure that the kernel module is installed and enabled.
Check the dependencies: Ensure that the necessary dependencies are installed.
Check the configuration files: Ensure that the necessary configuration files are accessible.
Check the Guest Additions installer: Ensure that the Guest Additions installer is able to access the necessary dependencies and configuration files.

Here are some additional resources that you can use to learn more about installing VirtualBox Guest Additions on RHEL 9 Server with a GUI:

VirtualBox documentation: The official VirtualBox documentation provides detailed instructions on how to install and configure VirtualBox Guest Additions.
Red Hat documentation: The official Red Hat documentation provides detailed instructions on how to install and configure RHEL 9 Server with a GUI.
Linux forums: The Linux forums provide a community-driven platform where you can ask questions and get help from experienced Linux users.

In conclusion, installing VirtualBox Guest Additions on RHEL 9 Server with a GUI can be a challenging task, but with the right solutions and troubleshooting tips, you should be able to resolve common issues and get the Guest Additions working as expected. Remember to always check the kernel version, kernel module, dependencies, configuration files, and Guest Additions installer to ensure that everything is properly configured.
VirtualBox Guest Additions on RHEL 9 Server with GUI: Q&A

In our previous article, we discussed the common issues that users may encounter when trying to install VirtualBox Guest Additions on RHEL 9 Server with a GUI. We also provided solutions to these issues and some additional troubleshooting tips. In this article, we will answer some frequently asked questions (FAQs) related to installing VirtualBox Guest Additions on RHEL 9 Server with a GUI.

Q: What is the minimum kernel version required for VirtualBox Guest Additions on RHEL 9 Server with a GUI?

A: The minimum kernel version required for VirtualBox Guest Additions on RHEL 9 Server with a GUI is 5.14.

Q: How do I check if the kernel module is installed and enabled?

A: You can check if the kernel module is installed and enabled by running the following command:

sudo modprobe vboxguest

If the kernel module is installed and enabled, you should not see any error messages.

Q: How do I install the kernel module?

A: You can install the kernel module by running the following command:

sudo dnf install kernel-modules

After installing the kernel module, you need to enable it by running the following command:

sudo modprobe vboxguest

Q: How do I configure the Guest Additions?

A: You can configure the Guest Additions by running the following command:

sudo dnf install kernel-headers

After installing the kernel headers, you can try configuring the Guest Additions again.

Q: Why am I getting the "kernel module not found" error?

A: You are getting the "kernel module not found" error because the kernel module is not installed or enabled. You can resolve this issue by installing the kernel module and enabling it.

Q: Why am I getting the "Guest Additions not installed" error?

A: You are getting the "Guest Additions not installed" error because the Guest Additions installer is unable to access the necessary dependencies. You can resolve this issue by installing the necessary dependencies.

Q: Why am I getting the "Guest Additions not working" error?

A: You are getting the "Guest Additions not working" error because the Guest Additions are not properly configured or the necessary dependencies are not installed. You can resolve this issue by configuring the Guest Additions and installing the necessary dependencies.

Q: Can I use VirtualBox Guest Additions on RHEL 9 Server with a GUI in a production environment?

A: Yes, you can use VirtualBox Guest Additions on RHEL 9 Server with a GUI in a production environment. However, you need to ensure that the Guest Additions are properly configured and the necessary dependencies are installed.

Q: Can I use VirtualBox Guest Additions on RHEL 9 Server with a GUI with other virtualization platforms?

A: No, you cannot use VirtualBox Guest Additions on RHEL 9 Server with a GUI with other virtualization platforms. VirtualBox Guest Additions are specific to VirtualBox and are not compatible with other virtualization platforms.

Q: How do I update the VirtualBox Guest Additions?

A: You can update the VirtualBox Guest Additions by running the following command:

sudo vboxreload

After updating the VirtualBox Guest Additions, you need to restart the guest machine to apply the changes.

Q: How do I uninstall the VirtualBox Guest Additions?

A: You can uninstall the VirtualBox Guest Additions by running the following command:

sudo dnf remove vboxguest

After uninstalling the VirtualBox Guest Additions, you need to restart the guest machine to apply the changes.

In conclusion, installing VirtualBox Guest Additions on RHEL 9 Server with a GUI can be a challenging task, but with the right solutions and troubleshooting tips, you should be able to resolve common issues and get the Guest Additions working as expected. We hope that this Q&A article has provided you with the information you need to successfully install and configure VirtualBox Guest Additions on RHEL 9 Server with a GUI.