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Questions tagged [virt-manager]

The virt-manager application is a desktop user interface for managing virtual machines through libvirt.

1 vote
1 answer
7k views

QEMU/KVM, using full physical disk is faster than raw .img file?

When adding an HDD to a guest in QEMU/KVM in Virt-Manager, there are "qcow2" and "raw". "raw" seems to be storing the data in a file with the ".img" extension. ...
0 votes
2 answers
4k views

KVM GPU Passthrough Nvidia Error 43

I have a Dell Latitude E6530 laptop with Optimus graphics (Intel/Nvidia) and I am attempting a dGPU passthrough that I have read countless articles and forum threads about trying to overcome this ...
0 votes
1 answer
892 views

Windows VM works from QEMU CLI but produces BSOD from virt-manager

Overview I have a Windows 7 virtual image that I can successfully spin up using the following qemu command in the terminal: qemu-system-x86_64 -m 4096 -boot d -enable-kvm -smp 2 -net nic -net user -...
0 votes
2 answers
13k views

I am facing problems loading and running the KVM due to the virt-manager on kali linux in windows 10

I used ''' sudo apt-get install qemu-kvm libvirt0 virt-manager libguestfs-tools ''' While trying to install metasploitable 2 and the surrounding functions from https://www.kalilinux.in/2020/09/...
0 votes
0 answers
47 views

How can I create a VM in virt-manager that can access the internet through the host but can't even see the host or other devices on the LAN?

I want to create a VM for testing purposes -- questionable websites, files that could be infected with a virus, etc. So I want to create a VM and that VM should be able to access the internet but it ...
0 votes
2 answers
423 views

virt-manager: Can't make a sparc64 vm

OS: Ubuntu 20.04.3 virt-manager version: 2.2.1 Whenever I go to make a sparc64 vm I get this error message Unable to complete install: 'internal error: process exited while connecting to monitor: 2021-...
21 votes
6 answers
32k views

No Auto Resize with SPICE and virt-manager

I've setup a VM that works great except for the auto resize functionality which seems to be inconsistent. I've got it randomly working a few times but it also randomly stops working. It's currently ...
27 votes
1 answer
18k views

What is the difference and relationship between kvm, virt-manager, qemu and libvirt?

I investigated this topic and here are my conclusions (But I still have questions. And please correct me if I made any mistake in my conclusions): VMWare: VMWare developed its VM Hypervisor SW in 1999,...
2 votes
0 answers
529 views

KVM/QEMU Extra mouse features

I have Windows 11 VM running on a Debian host. I am using virt-manager to configure and use the VM. Does anyone know how to get the mouse back/forward buttons and horizontal scroll to work when ...
2 votes
0 answers
232 views

How can I prevent certain keys (e.g. Super/Win) from being passed through to a qemu guest?

I am running a Windows 10 guest under Linux using qemu / virt-manager. All of my WM shortcuts in X use the super (windows) key. I don't really need that key for anything inside the Windows VM. Is ...
0 votes
0 answers
47 views

VirtManager, guest pause/save->resume, cannot RDP into guest

If relevant, the guest is using "Macvtap device" as the "Network source". It seems that if I apply "pause" or "save" on the Windows guest, and then resume it, I ...
1 vote
1 answer
2k views

Getting "can't connect to default" error on shutdown after installing virt-manager on Debian

I am running Debian 12/Bookworm with KDE Plasma. Ever since I installed virt-manager I am getting the following message when rebooting. It sits here for 30+ seconds before it continues with the boot ...
0 votes
2 answers
282 views

Shutdown VM when graphical console is closed

I have a Debian 12 VM with QEMU/KVM as hypervisor and Virt-Manager as a frontend and SPICE for graphical output. The purpose of this VM is to be used interactively and so I'd like not to leave it ...
2 votes
0 answers
3k views

How do I get a multi-display virgl 3D accelerated QEMU VM on a NVIDIA card in virt-manager?

I've managed to get virgl 3D acceleration running in QEMU/KVM, and now I want to see if I can get it running with multiple displays. However when I add more heads to the Video Device Display 1 is ...
1 vote
0 answers
181 views

Unable to split USB devices to Different USB Busses. Is this a hardware issue or Linux issue

I have i9-13900k CPU running on Asus Z790 MB. When using lsusb. I found out that every USB device is assigned to BUS 1. It does not matter which USB port I use on the computer. I would like to Split ...
0 votes
1 answer
222 views

Arch/Plasma - PolicyKit window not opening for Virtual Machine Manager;

I'm relatively new to linux and I have using Arch linux as the host for some virtual machines for some time now. I don't know what triggered it, but lately 90% of the times I boot and open the Virtual ...
0 votes
1 answer
1k views

Why won't windows boot in virt-manager KVM VM?

I'm following this tutorial on how to run windows apps seamlessly in using winapps and my VM won't boot. It gives the message "Boot failed: Could not read from CDROM (code 0004)". I made ...
0 votes
2 answers
2k views

Virtualised Windows 11 under virt-manager (QEMU/KVM) can't find USB SSD storage drive

My virtualised Windows 11 under virt-manager (QEMU / KVM ) can see the USB wireless mouse, but cannot see the USB SSD storage device. I took a check from the inside of Windows 11, in Disk Management ...
4 votes
1 answer
12k views

How to "alt-tab" out of full-screen Virt Manager?

I'd like to switch from fullscreen in qemu/kvm Virt Manager back to the most recently used window on the main host's operating system (just like alt-tab), but I haven't yet found a solution that works....
3 votes
2 answers
6k views

Virt manager error: unable to find any master var store for loader

I followed the guide here https://github.com/kholia/OSX-KVM but I got an error after importing the VM into virt-manager. Specifically, I get the error 'unable to find any master var store for loader' ...
1 vote
0 answers
170 views

Graphic glitches in virt-manager win-xp guest

I'm having graphical issues with my windows XP guest in virt-manager. I haven't done any extensive testing, but at the moment I have only encountered it inside the game 3D Pinball Space Cadet (which ...
4 votes
1 answer
12k views

virt-manager fails to initialize EGL render node for SPICE GL with NVIDIA proprietary drivers

I have virt-manager on a Fedora Workstation 26 host. I have set up a Virtual Machine with Windows 11 Educational. I have a Spice display server, with Listen Type set to “None”, and OpenGL set on with ...
0 votes
0 answers
2k views

How to SSH into virt-manager guest from host?

I have a Debian host OS. I installed virt-manager and created a guest Ubuntu 22.04 OS on a virtual machine. I retrieved the IP address of the guest OS by running ip addr on the (Ubuntu) guest OS's ...
1 vote
0 answers
355 views

Virt-manager duplicating CAPSLOCK key press

I'm running an Ubuntu 22.04 GNOME virtual machine using Virt-Manager. In all applications, I noticed that every time I tap the capslock key it triggers it, but then ~1s later it throws another ...
0 votes
1 answer
674 views

Setting up kvm to use partition on the current disk not working

I am using libvirt kvm with virt manager, my purpose to have a os that can be used on bare metal and through kvm. I already have a windows partition on my disk, and I created a vm with it added as a ...
3 votes
2 answers
818 views

Possible to move a guest OS on VirtManager (Linux) to Windows?

For VirtualBox or VMware Workstation,one could copy the guest OS data directory to another computer and run it there. For example, I could create a guest OS on Linux, and then copy the guest data ...
1 vote
1 answer
3k views

Why can’t I seem to run a VM via virt-install from the command line in macOS?

I try to run VM with emulation on MacBook 14 M1 Pro on macOS Monterey (12.3.1). I installed libvirt 8.2.0 and virt-manager 4.0.0 via brew. I used this formula for virt-manager: class VirtManager < ...
2 votes
0 answers
1k views

FreeDOS as DOSBox replacement

Generally when the question about DOS games flares up, the general consensus is to use DOSBox (or DOSBox Staging) and it usually does the job. However, as a proof of concept I wonder if it would be ...
0 votes
2 answers
437 views

Timeout for access from Guest VM to Host

I use virt-manager to administer my virtual machines. I would like to communicate a virtual machine (Windows) with the host machine (GNU/Linux). I use the default network interface, which is a bridge ...
1 vote
1 answer
7k views

kvm/virt-manager boot selection

I have a VM with two virtual disks. Each have windows OS (w10 and upgraded, same W10 to W11). I cannot separate them to 2 VMs, because I'll loose the activation on one of them. I have enabled boot ...

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