Windows 81 Qcow2 Install =link= Link
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Target Keyword: windows 81 qcow2 install
virsh snapshot-create-as win81 clean-state "Fresh install with drivers"
First, make sure your system supports virtualization and that it's enabled in the BIOS. Also, ensure KVM is installed:
sudo apt-get update
sudo apt-get install qemu-kvm libvirt-daemon-system libvirt-clients bridge-utils
virtio-win.iso.vioserial -> w8.1 -> amd64 (assuming 64-bit).viostor -> w8.1 -> amd64 for the storage controller if necessary).UEFI example with virtio disk and virtio NIC:
virt-install \
--name win8.1 \
--ram 8192 \
--vcpus 2 \
--cpu host \
--os-variant win8.1 \
--disk path=/var/lib/libvirt/images/win8.1.qcow2,format=qcow2,bus=virtio,size=60 \
--cdrom /path/to/Win8.1.iso \
--disk path=/path/to/virtio-win.iso,device=cdrom \
--graphics spice \
--video qxl \
--network network=default,model=virtio \
--boot uefi
Notes:
Installing Windows 8.1 on a image via QEMU is a standard process that involves creating a virtual disk, booting from an ISO, and potentially loading VirtIO drivers for better performance. 1. Create the qcow2 Disk Image First, use the tool to create a virtual hard drive. A
format is preferred because it grows dynamically as data is added. Read the Docs qemu-img create -f qcow2 win8.qcow2 40G : This creates a 40GB virtual disk named win8.qcow2 . You can adjust the size (e.g., ) based on your needs. 2. Launch the VM for Installation
Run the QEMU command to boot from your Windows 8.1 ISO and attach the new disk. Arch Linux Forums Basic Command qemu-system-x86_64 -m windows 81 qcow2 install
G -enable-kvm -cpu host -drive file=win8.qcow2,format=qcow2 -cdrom path/to/windows8.1.iso -boot d Use code with caution. Copied to clipboard Key Parameters : Allocates 4GB of RAM (minimum 1GB required). -enable-kvm
: Uses hardware acceleration (requires Linux host with KVM).
: Passes through the host CPU features for better performance. : Path to your downloaded Windows 8.1 ISO. Arch Linux Forums 3. Performance Optimization (VirtIO)
Standard emulated SATA/IDE drives can be slow. For faster I/O, use
drivers, though Windows 8.1 does not include them by default.
Installing Windows 8.1 into a disk image using QEMU/KVM is a common way to run a fast, paravirtualized virtual machine (VM). Because Windows 8.1 support ended in January 2023, you will need to use specific driver versions for optimal performance. Prerequisites Windows 8.1 ISO : An official installation image. VirtIO Drivers ISO : Download the "stable" version (e.g., virtio-win-0.1.189.iso or similar) from the Fedora VirtIO project The Complete Guide to Installing Windows 8
: Ensure your host has hardware virtualization enabled in BIOS. Step 1: Create the QCOW2 Disk Image
to create a virtual hard drive. A minimum of 40GB is recommended for a usable Windows installation. qemu-img create -f qcow2 windows81.qcow2 Use code with caution. Copied to clipboard Step 2: Initial VM Setup & Boot
When starting the VM for the first time, you must mount both the Windows ISO and the VirtIO drivers ISO. qemu-system-x86_64 -m
G -enable-kvm -cpu host -smp cores=2 \ -drive file=windows81.qcow2,if=virtio \ -cdrom windows_8.1.iso \ -drive file=virtio-win.iso,index=3,media=cdrom \ -net nic,model=virtio -net user \ -vga qxl Use code with caution. Copied to clipboard Step 3: Loading Drivers During Installation
Windows 8.1 does not natively recognize the "VirtIO" storage controller, so the installer will show no available drives. In the Windows setup, choose Custom: Install Windows only (advanced) Load driver Navigate to the VirtIO CD drive (usually Select the storage driver: (for 64-bit).
Once loaded, your 40GB disk will appear. Select it and click Step 4: Post-Installation Drivers Obtain Windows 8
After the first boot, several components (like the Network and Graphics) will still be missing drivers. Device Manager in Windows.
Right-click any item with a yellow exclamation mark (e.g., "Ethernet Controller"). Update Driver Browse my computer Point it to the entire VirtIO CD-ROM drive and check Include subfolders Repeat this for the Balloon driver QXL graphics Optimization Tips Performance machine type and
CPU model to give the VM direct access to modern CPU features. Start Menu : If you prefer the classic look, tools like Open-Shell Classic Shell can restore the Windows 7-style start menu.
: Since Windows 8.1 no longer receives security updates, avoid using it for sensitive tasks or ensure it is heavily firewalled. Do you need help with a specific QEMU command
for your Linux distribution, or would you like to know how to set this up using Virt-Manager How to make Windows 8.1 Look Almost EXACTLY Like Windows 7