Installing Ubuntu 24.04 on VirtualBox 7.0.20 requires specific hardware virtualization settings to avoid boot failures. You must enable EFI, allocate sufficient RAM, and configure the display controller correctly in the VM settings before starting the installation process.
Prerequisites and System Preparation
Before creating a new virtual machine, ensure your Windows 11 host meets the necessary requirements. VirtualBox relies heavily on hardware virtualization technologies provided by your CPU. On most modern Intel and AMD processors, this feature is called VT-x or AMD-V. If this is disabled in your BIOS/UEFI settings, VirtualBox will fail to start any 64-bit operating system. You should verify that this feature is enabled in your motherboard's firmware settings. Additionally, ensure you have downloaded the officialubuntu-24.04-desktop-amd64.iso file from the Ubuntu releases page. Using an older or corrupted ISO can lead to installation hangs or checksum errors later in the process.
It is also advisable to check for pending Windows updates. Sometimes, Hyper-V conflicts can interfere with VirtualBox’s access to hardware virtualization extensions. While VirtualBox 7.0 has improved compatibility with Hyper-V, disabling it temporarily during setup can prevent subtle initialization issues. If you are unsure about your current configuration, refer to our guide on PowerSuspend: VM Failed to Start or Interrupted in Oracle VirtualBox on Windows 11 for troubleshooting startup errors related to host system states.
Creating the Virtual Machine
Open VirtualBox Manager and click on "New" to create a fresh virtual machine. Name your VM (e.g., "Ubuntu 24.04") and select Linux as the Type and Ubuntu (64-bit) as the Version. The installer should automatically detect the correct profile. For the Memory size, allocate at least 4096 MB (4 GB) of RAM. Ubuntu 24.04 runs smoothly with 4 GB, but if your host has 16 GB or more, consider giving 8 GB to ensure responsive performance during package installations. For the Processor settings, assign at least 2 CPUs. Ubuntu 24.04 is optimized for multi-core systems, and assigning only one vCPU can cause significant lag during the desktop environment setup. When configuring the Hard Disk, choose "Create a Virtual Hard Disk Now." Select VDI (VirtualBox Disk Image) as the format, and dynamically allocated storage to save space on your Windows 11 drive initially. Allocate at least 25 GB for the virtual hard disk, though 50 GB is recommended for long-term use if you plan to install development tools or large datasets.Configuring VM Settings for Compatibility
Once the VM is created, do not start it immediately. Instead, right-click the VM and select "Settings" to adjust critical components. Navigate to the "System" > "Motherboard" tab. Here, increase the Base Memory if needed and ensure the Boot Order includes Optical Drive first. More importantly, move the Optical Drive to the top of the list so the VM attempts to boot from the ISO image rather than the empty virtual hard disk. Under the "System" > "Processor" tab, ensure that Paravirtualization Interface is set to Default or Hyper-V, depending on your host configuration. The Display settings are crucial for Ubuntu 24.04. Go to the "Display" tab and set Video Memory to 128 MB. Change the Graphics Controller toVBoxSVGA. This driver offers the best compatibility with Ubuntu’s GNOME desktop environment in a virtualized setting. Avoid using VMSVGA unless you encounter specific graphical glitches, as VBoxSVGA generally provides better mouse integration and resolution scaling.
You must also enable EFI. In the "System" > "Motherboard" section, check the box for "Enable EFI." Ubuntu 24.04 uses GRUB2 which benefits from EFI mode, especially on newer hardware emulations. Without EFI enabled, you may see a black screen after the initial boot sequence. After adjusting these settings, go to the "Storage" section. Under "Controller: IDE" or "Controller: SATA," click the optical drive icon and select "Choose a disk file." Browse to your downloaded ubuntu-24.04-desktop-amd64.iso and attach it.
Network Configuration
By default, VirtualBox sets the network adapter to NAT. This is sufficient for internet access during installation. However, if you need to access the VM from your host machine via SSH later, you might want to change this to Bridged Adapter or configure Port Forwarding. For the initial installation, leave it as NAT to simplify the process. Ensure the "Cable Connected" checkbox is checked so the installer can download security updates and additional packages.Running the Installation
Start the virtual machine. You should see the GRUB menu appear within a few seconds. Select "Try or Install Ubuntu." Once the live environment loads, double-click the "Install Ubuntu 24.04 LTS" icon on the desktop. Follow the on-screen prompts for language, keyboard layout, and Wi-Fi connection. When asked for installation type, select "Guided - use entire disk." Confirm that you want to write changes to the virtual disk. During the setup, you will be prompted to create a user account. Choose a username and password. You can also select "Log in automatically" for convenience, though manual login is more secure. The installation will copy files and install the base system. This process typically takes 10-15 minutes depending on your host's I/O speed. Once complete, click "Restart Now." Remove the ISO image from the virtual optical drive when prompted to avoid rebooting into the live installer again. After the restart, you will be greeted by the Ubuntu login screen. Enter your credentials to access the desktop. Runsudo apt update && sudo apt upgrade in the terminal to ensure all packages are up to date. This final step ensures you have the latest security patches and kernel modules for VirtualBox guest additions. For more detailed troubleshooting on installation failures, see our article on Experiencing Two Big Problems Trying to Install Ubuntu 24.04.1 LTS on VirtualBox?.
Frequently Asked Questions
Why does my VirtualBox VM show a black screen after booting?
This usually indicates a mismatch between the graphics controller and the guest OS. Switching the Graphics Controller in the Display settings from VMSVGA to VBoxSVGA often resolves this issue. Additionally, ensure that EFI is enabled in the motherboard settings for Ubuntu 24.04.
Can I install Ubuntu 24.04 without an ISO file?
No, you cannot directly install Ubuntu without an installation medium. You must download the official ISO image and attach it to the VM's virtual optical drive. Alternatively, you could use cloud-init images, but that requires advanced networking setup and is not suitable for standard desktop installations.
How do I fix slow performance in Ubuntu on VirtualBox?
Ensure you have installed the Guest Additions, which provide optimized drivers for video and input. Also, verify that you have allocated enough RAM (at least 4GB) and at least two CPU cores. Disabling 3D acceleration in the Display settings can sometimes improve stability if graphical glitches occur.
What should I do if the installer freezes at 'Copying files'?
A freeze during file copying often points to insufficient disk I/O or memory allocation. Try increasing the virtual hard disk size limit and ensuring your host machine has enough free RAM. Checking the host's background processes for heavy disk usage can also help identify resource contention.
Is it safe to use NAT networking for Ubuntu in VirtualBox?
Yes, NAT is perfectly safe and recommended for initial setup as it allows the VM to access the internet while hiding its internal IP address from the host network. It prevents external attacks from reaching the VM directly. If you need to expose services like Apache, you must manually configure port forwarding rules.