This means your VM is trying to use an IDE driver, but the image was built for SCSI/VirtIO. Solution: edit the .qcow2 metadata or attach a secondary VirtIO driver disk during boot.
Since Windows 7 is no longer supported, do not connect it directly to the internet without a firewall. Use: Windows 7.qcow2 Download-
qemu-system-x86_64 -enable-kvm -m 4096 -smp 2 \
-drive file=windows7.qcow2,format=qcow2,if=virtio \
-netdev user,id=net0 -device virtio-net-pci,netdev=net0
*If you ignore the warning above and still want a direct download, here is where the community historically finds these files. Verify hashes. * This means your VM is trying to use
| Source | URL (Search Term) | Quality | Risk Level | | :--- | :--- | :--- | :--- | | OSBoxes | "osboxes windows 7 qcow2" | Pre-installed, unactivated | Medium | | Linux-VM.com | "windows 7 qcow2 download" | Basic install | High | | Internet Archive | "Windows 7 QEMU image" | Legacy preservation | Medium (check comments) | On first boot, install or update virtio drivers
How to verify a downloaded image:
# Check for suspicious files inside a QEMU image without booting
sudo modprobe nbd
qemu-nbd --connect=/dev/nbd0 windows7.qcow2
sudo mount /dev/nbd0p1 /mnt/vm
ls /mnt/vm/Windows/System32/drivers/ # Look for odd named .sys files
umount /mnt/vm
qemu-nbd --disconnect /dev/nbd0