To "make paper" (likely a typo for "make an image") for a Windows 10 .qcow2 file, you generally need a Windows 10 ISO and a Linux environment with QEMU/KVM installed. The process involves creating an empty virtual disk and installing Windows onto it while using specific drivers to ensure the virtual disk is recognized. 1. Create an Empty qcow2 Virtual Disk
Use the qemu-img command to create a virtual disk file. It is recommended to allocate at least 20GB. qemu-img create -f qcow2 win10.qcow2 25G Use code with caution. Copied to clipboard 2. Download Required Drivers
Windows does not natively include the VirtIO drivers needed to "see" QEMU's high-performance virtual disks.
Download the latest virtio-win.iso from the official Fedora project or a similar reputable source. 3. Launch the Installation VM
Start a temporary virtual machine to perform the installation. You must attach both the Windows 10 ISO and the VirtIO driver ISO.
qemu-system-x86_64 -m 4096 -enable-kvm \ -drive file=win10.qcow2,if=virtio \ -cdrom /path/to/windows10.iso \ -drive file=/path/to/virtio-win.iso,media=cdrom \ -net nic,model=virtio -net user \ -boot d Use code with caution. Copied to clipboard 4. Load Drivers During Windows Setup
When the Windows installer asks "Where do you want to install Windows?", the list will be empty.
Click Load driver and browse to the attached virtio-win CD drive.
Navigate to the folder for your Windows version (e.g., amd64/w10) to load the Viostor (storage) driver.
Once the driver is loaded, your win10.qcow2 disk will appear, and you can proceed with the installation. 5. Finalize the Image (Optional but Recommended) windows 10qcow2
After installation, you can run Sysprep to "generalize" the image if you plan to use it as a template for multiple virtual machines. Run C:\Windows\System32\Sysprep\sysprep.exe.
Select Enter System Out-of-Box Experience (OOBE) and check Generalize. Select Shutdown as the Shutdown Option.
Converting Windows 10 to QCOW2: A Step-by-Step Guide
Are you looking to run Windows 10 on a virtual machine, but your hypervisor only supports QCOW2 images? Look no further! In this article, we'll walk you through the process of converting a Windows 10 installation to a QCOW2 image.
What is QCOW2?
QCOW2 (QEMU Copy-On-Write) is a virtual disk image format used by the QEMU hypervisor. It's a popular format for virtual machines, offering features like compression, encryption, and support for snapshots.
Why Convert Windows 10 to QCOW2?
There are several reasons to convert your Windows 10 installation to QCOW2:
Prerequisites
Before we begin, make sure you have:
qemu-img)Method 1: Using qemu-img
One of the easiest ways to convert a Windows 10 installation to QCOW2 is using the qemu-img command-line tool.
qemu-img on your system. On Ubuntu-based systems, you can run sudo apt-get install qemu-utils.qemu-img convert -f vmdk -O qcow2 windows10.vmdk windows10.qcow2
Replace windows10.vmdk with the path to your Windows 10 image and windows10.qcow2 with the desired output file name.
Method 2: Using VirtualBox
If you're using VirtualBox, you can convert your Windows 10 image to QCOW2 using the following steps:
Conclusion
Converting a Windows 10 installation to QCOW2 is a straightforward process using tools like qemu-img or VirtualBox. With a QCOW2 image, you can run your Windows 10 virtual machine on a variety of hypervisors, taking advantage of features like snapshots and compression.
Troubleshooting
If you encounter issues during the conversion process, ensure that:
By following these steps, you'll be able to convert your Windows 10 installation to QCOW2 and enjoy the benefits of a flexible and space-efficient virtual disk image format.
To develop a Windows 10 QCOW2 image, you typically use QEMU/KVM to create a virtual disk and install the OS from an ISO. This format is widely used in cloud environments (like OpenStack) and Linux-based virtualization (like Proxmox or Virt-Manager). 1. Create the QCOW2 Virtual Disk First, use the
tool to create a blank virtual disk file. You should allocate at least 40GB to 50GB for a standard Windows 10 installation. DEV Community qemu-img create -f qcow2 windows10.qcow2 Use code with caution. Copied to clipboard 2. Download Essential Components Windows 10 ISO : Use the official Microsoft Media Creation Tool to download the latest ISO. VirtIO Drivers
: To ensure high performance and proper disk recognition during installation, download the Windows VirtIO Drivers ISO
. Without these, the Windows installer might not see your QCOW2 disk. OpenNebula 3. Launch the Installation
Run the following QEMU command to start the installation. This command mounts both the Windows ISO and the VirtIO driver disc: Yandex Cloud qemu-system-x86_64 -m
G -cpu host -enable-kvm \ -drive file=windows10.qcow2,if=virtio \ -cdrom /path/to/windows10.iso \ -drive file=/path/to/virtio-win.iso,media=cdrom \ -net nic,model=virtio -net user \ -vga virtio -boot d Use code with caution. Copied to clipboard 4. Install Windows and Drivers Load Drivers
: When the installer asks "Where do you want to install Windows?", the list will likely be empty. Click Load Driver and browse the VirtIO CD (usually the folder for your architecture) to reveal the QCOW2 disk. Post-Install To "make paper" (likely a typo for "make
: Once Windows boots, open the VirtIO CD in File Explorer and run the virtio-win-guest-tools.exe
to install all remaining drivers for networking and performance. OpenNebula 5. Optimization & Image Prep (Optional) How to create Windows VM? - OpenNebula Forum
virtio-win drivers (storage and network), qcow2 sequential read/write can saturate an NVMe-backed host.cache=writeback or none and aio=native, I/O latency is surprisingly low.qemu-img convert to defragment.osboxes.org). These are generally safe and updated.vagrant up using a Windows 10 box (e.g., gusztavvargadr/windows-10), then export the disk as QCOW2.