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GUI options for KVM? (lemmy.radio)

submitted 5 months ago by [email protected] to c/linux

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I've been using VMware for about two decades. I'm moving elsewhere. KVM appears to be the solution for me.

I cannot discover how a guest display is supposed to work.

On VMware workstation/Fusion the application provides the display interface and puts it into a window on the host. This can be resized to full screen. It's how I've been running my Debian desktop and probably hundreds of other virtual machines (mostly Linux) inside a guest on my MacOS iMac.

If I install Linux or BSD onto the bare metal iMac, how do KVM guests show their screen?

I really don't want to run VNC or RDP inside the guest.

I've been looking for documentation on this but Google search is now so bad that technical documents are completely hidden behind marketing blurbs or LLM generated rubbish.

Anyone?

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[–] [email protected] 5 points 5 months ago

Right: https://virt-manager.org/

One can close the window that shows the virtual machine, and it would still run in the background. Qemu+Kvm is not the only way to use Virtual Machines with virt-manager, one can also use LXC or Xen as its Hypervisor. I'm relatively new to the concept of Kvm and it was a little bit confusing first.

First a connection to a Hypervisor needs to be established (here Qemu+Kvm). I think that means a server is running in the background, correct me if I'm wrong. Then one can install or run a virtual machine with the connection. Here is a screenshot on my current setup (I tried to create an AppImage, long story) and added a few useless red arrows. The QEMU/KVM connection is automatically connected at start (configurable). Once a virtual machine is running, you have to click "Open" to show the window of the VM.