You need to add a device to your VM. For example, if you decided to use VGA adapter (mode), your code should look like this:

qemu-system-x86_64 -enable-kvm -m 4G -cdrom "OS.iso" -boot order=c -drive file=image_file,if=virtio -device VGA,vgamem_mb=256

You can get the list of the devices that is possible to add to the VM by running the following command (print a list of QEMU supported devices by category):

qemu-system-x86_64 -device help

Additionally, the options per device can be determined by running:

qemu-system-x86_64 -device device_name,help

For the example with VGA adapter:

qemu-system-z86_64 -device VGA,help

Hope this will help:)

You need to add a device to your VM. For example, if you decided to use VGA adapter (mode), your code should look like this:

qemu-system-x86_64 -enable-kvm -m 4G -cdrom "OS.iso" -boot order=c -drive file=image_file,if=virtio -device VGA,vgamem_mb=256

You can get the list of the devices that is possible to add to the VM by running the following command (print a list of QEMU supported devices by category):

qemu-system-x86_64 -device help

Additionally, the options per device can be determined by running:

qemu-system-x86_64 -device device_name,help

For the example with VGA adapter:

qemu-system-z86_64 -device VGA,help

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