2

I am totally lost on this.

I used this guide to help me setup the VM environment (also installed virt-manager): https://help.ubuntu.com/community/KVM/Installation

Then I set up a VM with virt-manager using a Windows 10 ISO, and I wasn't prompted to change anything other than the RAM allocation, the # of CPU cores to use, and the HDD size. When I loaded up the VM for the first time, I noticed that the video was very laggy, but I thought this was just a weird side-effect of the Windows Setup. But this still occurred after Windows was fully installed. The resolution didn't automatically change either, I had to manually change it. The VM's video feels horribly slow.

I have no idea what I did wrong, and I've been looking everywhere for answers. How can I fix this? I'm trying to make a VM that feels like a native install.

htv04
  • 33

1 Answers1

2

You'll probably have to reinstall Windows.

Your Windows VM should use special para-virtualised drivers (known as VirtIO drivers),
else the VM host will have to emulate hardware for the Windows guest, and it'll be abysmally slow.

Go here and download the virtio-win.iso
https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/

Create a 2nd CD drive on the Windows VM Load the Windows installation ISO on 1 CD drive The above KVM VirtIO driver ISO on the other.

During the Windows install, there should be a point where you can choose what drivers to use.
Navigate to the driver CD, and select the appropriate drivers.

You'll need to select VirtIO drivers for at least following to get near-native performance:

  • Virtio block driver (hard disks, etc.)
  • Virtio network driver
  • Virtio QXL graphics driver

But have a look at the other drivers supplied as well, in case you need.

Tony
  • 189