Questions tagged [virt-manager]

Virt-Manager is a desktop user interface for managing virtual machines, based on libvirt.

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Virt-manager "Unable to complete install: 'Requested operation is not valid: network 'default' is not active'"

I have just instaled virt-manager on Arch Linux, I've gone through all of the steps of creating a VM, but when I click on "Finish" on step 5/5 I get two pop-up dialogs: Unable to complete ...
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99 kvm/qemu/virt-manager problems

Specs Host system: Kernel: 5.15.28-1-MANJARO virt-manager version 4.0.0 CPU: AMD Ryzen 7 5800H Questions should be specific and address only one problem etc.. i know. But this program has me ...
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How to make a USB device available to a QEMU guest?

I am trying to make my laptop camera accessible by a guest system on it. With the guest system not running, I open it in virt-manager, go to "Show virtual hardware details" → "Add ...
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virt-manager Windows guest access Linux host folder

I have the following configuration: Linux host: MX Linux 21 (based on Debian 11) Windows guest: Windows 8.1 virt-manager: 3.2.0 I've created a shared folder in Linux labeled L_data. Windows has ...
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virt-manager: Remove mouse integration

Host: Debian Bullseye Guest: Windows XP virt-manager: 3.2.0 Hypervisor: KVM Emulator: /usr/bin/qemu-system-x86_64 I am trying to play an old Windows game in a virtual machine (because it won't work on ...
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Virt-manager: How to ignore key sequence from host?

I'm on Debian+Xfce and I have two desktops. I set Super+F1 to take me to the first desktop and Super+F2 to take me to the second desktop. I would like to run a virt-manager guest in full screen on the ...
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virsh cpu-baseline issue

According to the libvirt virtualization api manual pages: cpu-baseline Compute baseline CPU which will be supported by all host CPUs given in <file>. So, as a theoretical exercise, I've ...
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I can't run The Binding of Isaac Antibirth (Antibirth, not another DLC, I mean the mod) any help?

This happens under a Windows 10, 7 or 11, any way to fix this? The app just won't launch. I know it works on a bare metal machine.
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QEMU/KVM: How to add video devices at runtime

My Environment Kubuntu 20.04, Virtual Machine Manager 2.2.1 with WIN10 guest, virsh version 6.0.0, remote-viewer version 7.0 What's Working Currently I've have 3 monitors and have defined 3 Video ...
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  • 357
6 votes
1 answer
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Error creating snapshot: Operation not supported: internal snapshots of a VM with pflash based firmware are not supported

I'm using Arch Linux, both host and guest. For UEFI boot, I've installed edk2-ovmf and made the guest use the firmware /usr/share/edk2-ovmf/x64/OVMF_CODE.fd. I want to create snapshots of my VM but am ...
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Failed to probe capabilities for /usr/local/bin/qemu-system-x86_64: internal error: Failed to start QEMU binary

I've just launched "virt-manager" on my Ubuntu 21.04 and with my big surprise I've seen the error "kvm is not available. It could means that the kvm package is not installed and so on&...
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How to apply qemu:env command line to virt-manager? (libvirt)

I need to apply this fix <qemu:env name="MESA_LOADER_DRIVER_OVERRIDE" value="i965"/> to my virt-manager VM. However, I don't know where to put it. I tried editing the XML ...
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permission error when adding new VM

This is my environment: MX Linux 19.4 AHS, virt-manager 2.0, Windows 8.1 in VM, I added the following packages through Synaptic qemu-kvm, libvirt-daemon-system, virt-manager, libvirt0, qemu-utils, ...
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virt-manager MX Linux host, Android x86 guest share folder

How can I share folder between Linux host and Android guest? Tried to add USB and file system hw, but couldn't make them work, I could share folder and copy/paste with Windows guest, what I'm missing?
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virt-manager MX Linux 19.4 + Android x86 guest copy & paste

I have an MX Linux 19.4 and Android x-86 guest installed with virt-manager, I found instructions how to enable/install additional hw to share folders and clipboard (copy and paste) with Windows 8.1 ...
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Android-x86 guest in virt-manager screen adjustment

I have an MX Linux 19.4 as host and installed Android-x68 9 r2 64bits guest, the problem I'm having is how to adjust the guest screen size to fit the VM screen size, right now the guest screen size is ...
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356 views

When using Spice and remote-viewer with multiple virtual monitors, stuck on "Waiting for display 2" indefinately

Following some research, I learned that the proper method to setup multiple virtual monitors with virt-manager, libvirtd, and qemu is to use spice (link, link, link). At first, I added three total ...
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Unable to complete install: 'unsupported configuration: unknown protocol type 'file'' error

I've been trying to create a windows vm with qemu and kvm through virt-manager in Linux Mint. However, I am stuck running into this error whenever I try to use the Windows ISO. Unable to complete ...
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1 answer
316 views

Configure guest in virt-manager to use host's VPN?

One thread mentions to use a bridged or macvtap connection, but every device I put results in an 'operation unsupported' error or the VM doesn't connect to any network when I start it (though when I ...
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1 vote
1 answer
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Virtual Machine Manager can't launch create dialog — pci.ids is missing

I'm using Pop!_OS 20.10, and I've installed virt-manager using apt. However, whenever I click "Create new virtual machine" in the application, the following error pops up: Error launching ...
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3 answers
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Qemu/kvm (virt-manager) very slow after update - AMD Ryzen

I am using an up-to-date version of manjaro mate and have virt-manager 3.2.0-1 installed on my Thinkpad E14 (AMD Ryzen 5 4500U). Using either GNOME Boxes or virt-manager it is really slow: It really ...
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2 votes
1 answer
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How to start QEMU VM from command line?

To learn more about QEMU configuration, I would like to start VM ubuntu20.10 directly on the command line and not by usage of virt-manager. I have read in Convert libvirt xml into qemu command line, ...
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Boot another computer's drive with QEMU

I recently installed a SSD on an old laptop and I kept the previous disk. Now I want to see if I left anything important there, so I put it into a USB to SATA cask and I'm trying to access my data. ...
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Inability to create VM using virt-manager

I am trying to create some VM using the virt-manager and no matter what I do I am getting this error: Unable to complete install: 'internal error: guest failed to start: Failure in libvirt_lxc startup:...
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Can't use virt-manager after removing firewalld

I accidentally ran a sudo apt remove firewalld, and now trying to use virt-manager to create a virtual machine shows the following message: The name org.fedoraproject.FirewallD1 was not provided by ...
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1 answer
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2 guest VMs on the same host, remoting (via VNC/NoMachine) to each other

I have a very simple setup. Host is virt-manager running QEmu-KVM guests: Host: Ubuntu 20.04 (basic install) 2 Guests: Ubuntu Mate 20.04 (basic install) I have installed NoMachine (or VNC) on ...
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1 answer
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How can I migrate/backup/restore a virt-manager snapshot?

I have spent about a week trying to figure out how to backup/restore/restore a virt-manager VM including all snapshots. If I examine the qcow2 file it contains all the snapshots that were made: sudo ...
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1 answer
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QEMU / virt-manager - Changing a hypervisor desktop while inside virtual machine

I am running openbox desktop on my physical machine where I navigate desktops using key combinations Meta+1 or Meta+2 or Meta+3... My physical machine has a QEMU hypervisor installed and there is a ...
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1 answer
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virt-manager VM cannot access outside network when VPN is enabled

I am running CentOS7 as a VM on Virtual Machine Manager (virt-manager 2.2.1) on Ubuntu 20.04.1. On the same Ubuntu machine I am running AnyConnect 4.9.03047 to connect via VPN. When the VPN is not ...
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2 votes
0 answers
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virt-manager, qemu-kvm, spice & vdagent: auto resizing and file sharing not working

Host: Ubuntu 18.04 Guest: Fedora 33 virt-manager 1.5.1 I built the guest using virt-manager. The guest works: internet access works, youtube in browser works, sound works, clipboard sharing between ...
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6 votes
4 answers
7k views

virt-manager - Change firmware AFTER installation

virt-manager uses BIOS as the default option for firmware. There is an option to change this to UEFI just before installation, after the volume is set up. However, after installation, the dropdown ...
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1 vote
0 answers
467 views

Mouse pointer doesn't show up in OS using qemu+kvm with virt-manager

I haven't tried to do much with virtualization on linux. I'm using virt-manager. I have a qemu/kvm connection and created an OS. When the mouse moves into the VM window it completely disappears and ...
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1 vote
1 answer
11k views

Creating VM's using kvm. Error: Unit libvirtd.service could not be found?

TLDR; On Ubuntu 20.04.1, I am trying to run VM's using KVM. After installing the required packages, I still get below error: sudo systemctl status libvirtd Unit libvirtd.service could not be found. ...
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3 votes
1 answer
1k views

Error adding device: unsupported configuration: only supports passthrough accessmode

With virt-manager 2.2.1, I'm trying to create a shared directory between an Arch Linux host and a Kali guest. I went to "Add New Virtual Hardware" → "Filesystem": Clicking "...
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5 votes
0 answers
2k views

How to create snapshot with UEFI firmware on virt-manager?

I am using qemu v2.11.1 and libvirt 4.0.0 - both are latest stable for Ubuntu 18.04. The guest is Windows 10 running on Tianocore UEFI firmware. When I tried to take a snapshot on virt-manager, it ...
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1 vote
1 answer
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libvirt: how to pass qemu command-line args now libvirt schemas is 404 [duplicate]

This is the only way I have found to pass arguments to qemu: <domain type='qemu' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> Unfortunately the url http://libvirt.org/schemas/...
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1 vote
0 answers
205 views

How to run multiple instances of virt-manager?

I set up X-Forwarding from my SSH client on Windows with the goal to manage my virtual machines using the virt-manager GUI. I don't think there is a way to do so natively from Windows. Now I noticed ...
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1 vote
1 answer
343 views

Virt-Manager won't start due to problem with libxml2 not importing in python

I have been happily using KVM and virt-manger on Arch Linux for about a year now. This morning, one of my VMs broke (that is another story which I don't think is related), and I decided that it would ...
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2 votes
0 answers
261 views

Kali 2020.1b no autoresizing to window with virtual manager

I am running ubuntu 20.04 LTS with a default KVM/QEMU/Virt-manager installation (as said on linuxconfig etc.). I have a fedora virtual machine which automatically resizes to fit the viewer window and ...
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0 votes
1 answer
545 views

How can I backup and restore VM with the same vol file size when using virt-manager (qemu-kvm)?

I am using qemu-kvm and virt-manager for running virtual machines. There is a snapshot UI in virt-manager to create snapshots. But after creating some snapshots and reverting back to some snapshots, I ...
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2 votes
1 answer
6k views

How to configure hotkeys to release focus with qemu / virt-manager

I'm using virt-manager on a Linux Mint 19.2 system to run a Windows 10 guest in qemu/kvm. For video, I'm using splice/ qlx. I can release the focus by pressing the left ctrl + left alt keys together. ...
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0 votes
0 answers
491 views

Virt Manager is not opening on Ubuntu 18.04

I have installed virt manager from terminal using command apt-get install virt-manager in ubuntu 18.04. It is installed successfully but when i click on VirtManager App icon it is not opening. When i ...
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0 votes
1 answer
1k views

How to mount host directory from Centos 7 guest in KVM on Fedora 30 host?

I am attempting to share a directory on my host to a guest. Host: Fedora 30 Guest: Centos 7 Using Virt-manager I added a filesystem Type: mount Driver: Default Mode: Mapped Source Path: /KVMshare (...
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1 vote
1 answer
22k views

Network not working in a QEMU/KVM virtual machine running Arch linux

I have installed Arch Linux in a KVM/QEMU virtual machine using the virt-manager program. However, network inside the VM is not working. My host system has Ubuntu 18.04 and I am using a Wi-Fi based ...
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0 votes
1 answer
1k views

Virtual network virbr0 cannot connect to internet anymore

I have VMs in virt-manager. Normally, they can connect to the internet. These VMs are connected to my default virtual network, device virbr0. To reach the internet, the virtual network is configured ...
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1 vote
1 answer
5k views

Does Virt-Manager GUI have a easy way to configure networking passthrough/bridge?

System: RHEL 7.5 with gnome I've googled for days on this topic, and I can't seem to find a decent answer. When using Virtualbox, there is a one click "Bridge to ENO1" option that allows seamless ...
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1 vote
1 answer
1k views

Unknown protocol type 'file' error when creating new virtual machine with virt-manager

I'm trying to create a CentOS virtual machine in Debian Buster using virt-manager with QEMU/KVM. I had installed it with: $ grep -o 'vmx\|svm' /proc/cpuinfo $ sudo apt install qemu-kvm libvirt-...
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1 vote
2 answers
485 views

Nothing happened when trying to add new vm on virt-manager

I try to create new vm or see connection details with virt-manager but nothing append, no popup, no error message, nothing. see here: i click but nothing append i use arch with kde libvirtd is enable ...
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0 votes
2 answers
1k views

Can't install windows guest on virt-manager

I can't seem get a windows guest installed on virt-manager. When I start the machine before the install cd loads I get a blue screen with code SYSTEM THREAD EXCEPTION NOT HANDLED. Here's the logfile ...
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-1 votes
1 answer
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Is KVM a hypervisor?

https://en.wikipedia.org/wiki/Hypervisor#Classification says QEMU is type 2 hypervisor, and KVM can be both type 1 and 2 hypervisor: The distinction between these two types is not always clear. ...
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