![]() If the boot screen does not appear, there are several options to troubleshoot. Note: If the latest stable release is not compatible with your hardware, you may wish to consider testing a newer release. Select the option to test this media and install Qubes OS. Pressing the “Tab” key will reveal options. If you’re successful in this step, after a few seconds you’ll be presented with the Qubes installer screen:įrom here, you can navigate the boot screen using the arrow keys on your keyboard. Instead, let the BIOS or UEFI load and let your computer boot from your USB drive. (If you’re not sure whether you’ve saved your changes correctly, you can always reboot your computer and go back into the boot menu to check whether it still reflects your changes.) Once your BIOS or UEFI is configured the way you want it, reboot your computer. How you do this depends on your BIOS or UEFI, but the instructions should be displayed right there on the screen or in a nearby tab. Once you’re done on the boot menu, save your changes. (If you have multiple entries that all look similar to your USB drive, and you’re not sure which one is correct, one option is just to try each one until it works.) If, on the other hand, your boot menu presents you with a list of boot devices in order, then you’ll want to move your USB drive to the top so that the Qubes installer runs before anything else. If your boot menu lets you select which device to boot from first, simply select your USB drive. The goal is to tell the computer to boot from your USB drive so that you can run the Qubes installer. Once you access your computer’s BIOS or UEFI menu, you’ll want to go to the “boot menu,” which is where you tell your computer which devices to boot from. Here’s an example of what the BIOS menu looks like on a ThinkPad T430:Īnd here’s an example of what a UEFI menu looks like: To give you and idea of what you should be looking for, we’ve provided a couple of example photos below. Once you know the key to press, press your computer’s power button, then repeatedly press that key until you’ve entered your computer’s BIOS or UEFI menu. If you’re not sure, you can search the web for BIOS key or UEFI key (replacing with your specific computer model) or look it up in your computer’s manual. The key to press varies from brand to brand. Right after you press the power button, you’ll have to immediately press a specific key to enter the BIOS or UEFI menu. To begin, power off your computer and plug the USB drive into a USB port, but don’t press the power button yet. Since you’re installing Qubes OS, you’ll need to access your computer’s BIOS or UEFI menu so that you can tell it to boot from the USB drive to which you just copied the Qubes installer ISO. Depending on the computer, this low-level software is may be called the “BIOS” or “UEFI”. When a computer boots up, it first runs low-level software before the main operating system. “Booting” is the process of starting your computer. This section will demonstrate a simple installation using mostly default settings. Instead, choose the "Install Qubes OS" option. Note: Using Rufus to create the installation medium means that you won't be able to choose the "Test this media and install Qubes OS" option mentioned in the example below. If those settings are not nested under the Advanced tab, you might find them under the Security tab. This external guide made for Intel-based boards can help you figure out how to enter your BIOS or UEFI to locate and activate those settings. ![]() This parameter should be activated in your computer’s BIOS or UEFI, alongside the standard Virtualization ( Intel VT-x) and AMD Virtualization ( AMD-V) extensions. For Intel-based boards, this setting is called Intel Virtualization for Directed I/O ( Intel VT-d) and for AMD-based boards, it is called AMD I/O Virtualization Technology (or simply AMD-Vi). ![]() Without it, Qubes OS won’t be able to enforce isolation. ![]() You may also find it helpful to consult the Hardware Compatibility List.Įven on supported hardware, you must ensure that IOMMU-based virtualization is activated in the BIOS or UEFI. Other hardware may require you to perform significant troubleshooting. To ensure compatibility, we strongly recommend using Qubes-certified hardware. Qubes OS has very specific system requirements. See installation security for more information. Do not install Qubes on a computer you don't trust. No software can provide security if it is installed on compromised hardware. ![]() Warning: Qubes has no control over what happens on your computer before you install it. ![]()
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