Install the SPICE guest agent from the VirtIO ISO ( spice-guest-tools folder). This allows dynamic screen resizing and clipboard sharing.
sudo dnf groupinstall "Virtualization Host" sudo dnf install qemu-kvm libvirt virt-install virt-manager
To achieve optimal performance, you must pass specific flags to QEMU. These flags enable hardware acceleration, map the installation ISOs, attach the QCOW2 disk via the VirtIO bus, and allocate system resources. Run the following command to start the virtual machine:
The latest stable Fedora VirtIO drivers ISO ( virtio-win.iso ). These drivers are critical because Linux-based hypervisors require them to recognize QCOW2 storage controllers and network interfaces during the installation process. Minimum System Specifications
Comprehensive Guide: How to Install Windows 8.1 in a QCOW2 Virtual Disk windows 81 qcow2 install
Run this command on your host terminal to convert an existing disk to QCOW2:
This comprehensive guide covers everything you need to know to install Windows 8.1 using a QCOW2 virtual disk image on Linux hosts running QEMU/KVM or Proxmox. Prerequisites and Preparation
To create the virtual disk image, use the qemu-img command-line tool on your host system.
While mainstream support ended in 2023, extended support lasts until (embedded versions longer). Windows 8.1 is lighter than Windows 10/11, supports UEFI, and can be optimized for KVM with proper VirtIO drivers. It remains a go-to for: Install the SPICE guest agent from the VirtIO
Once Windows 8.1 boots:
Because we specified bus=virtio for storage efficiency, the Windows 8.1 installer will greet you with a blank drive screen stating: "We couldn't find any drives. To get a storage driver, click Load driver." Do not panic; this is normal.
In this command, -f qcow2 specifies the disk image format, win81.qcow2 is the name of the image file, and 40G sets the maximum size of the virtual hard disk. It is generally recommended to allocate at least 40GB for a usable Windows system.
There are two legitimate routes:
Using standard IDE or SATA emulation can be slow. For "Metro-speed" performance, use .
: At least 40GB to 50GB for a functional OS installation. 2. Creating the QCOW2 Image
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