Questions tagged [virt-manager]

Questions regarding virt-manager, a GUI tool that allows the user to interact with KVM.

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Installing macvtap on Ubuntu 23.10

I am trying to install a virtual machine by virt-install and it seems there is some problem by configuring macvtap interface: virt-install --noautoconsole --name fgvm --memory 4096 --vcpus 4 --virt-...
Shahrouz Rad's user avatar
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AMD 7800XT GPU passthru Virt-manager Ubuntu 22.04LTS dont properly work

Intro: Hello, I have two GPUs, one NVIDIA 3060 and a AMD 7800XT. I would like to have the nvidia to the host itself, and passthru the amd GPU to a W11 VM in virt-manager. I have already did the ...
cookiemonster's user avatar
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something wrong disk size in vm under KVM

My VM in KVM looks disk full, then I checked df df -h Filesystem Size Used Avail Use% Mounted on tmpfs 392M 1.2M 391M 1% /run /dev/mapper/...
user6508956's user avatar
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libvirt tools:sudo or not?

What are the effects for using sudo for libvirt commands such as virt-manager/virsh? Will it affect something later when using the created VMs and regret not using it before? I'm trying to use them ...
jw_'s user avatar
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How to let Ubuntu 20.04 virt-manager allocate volume space later

In virt-manager, I open the "Connection Details" dialog and create new volume in the "Storage" pane. Although "Allocate entire volume now" is not selected, but the ...
jw_'s user avatar
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109 views

Where does qemu/virt-manager store connection strings?

I'm migrating to a new laptop and have a decent number of Connections (not actual VMs) in virt-manager. I've grepped and cannot find any text file with data from the connection strings that appear ...
a coder's user avatar
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2 answers
549 views

How do I inhibit shortcuts for Virtual Machines

When I launched virt-manager in Ubuntu under GNOME I was presented with a dialogue: Virtual Machine Manager wants to inhibit shortcuts. You can restore shortcuts by pressing Super+Escape. Deny? ...
jophuh's user avatar
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Guest operating system ubuntu-mate 22.04.3 jammy jellyfish display does not autoresize when run on fedora workstation 38 using virt-manager

I am running ubuntu-mate jammy-jellyfish 22.04.03 as a guest operating system on fedora-38-workstation using virt-manager. The display does not autoresize when I resize the virt-viewer window. Can you ...
RAMUMSRK's user avatar
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How to create guests VMs from different disk in ubuntu server

this is my disk layout loop2 7:2 0 49.9M 1 loop /snap/snapd/18357 sda 8:0 0 223.6G 0 disk ├─sda1 8:1 0 1M 0 part ├─...
Elvin Jafarov's user avatar
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QEMU/KVM virt-manager Unable to GPU Passthrough: Group not viable

My computer specs: Fresh Ubuntu 22.04.2 LTS install AMD Ryzen 5 5600x 32GB RAM 2TB NVME Radeon rx 6500 xt & Radeon rx 5700 MSI B450 Pro Carbon motherboard Guides attempted: Mathias Hueber Pavol ...
Chloe's user avatar
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How do I get 3D acceleration to work in virt-manager?

I'm trying to get 3D acceleration to work in virt-manager, but no matter what guest I use in virt-manager, if I enable 3D acceleration, I get this error. In the details of the error, it has this: ...
Platinum Lucario's user avatar
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111 views

Ubuntu multipass - VMM

How to show Ubuntu miltipass machines in Virtual Machine Manager?
grek's user avatar
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1 answer
1k views

How to use external SSD to store files for VM?

I'm using an external SSD portioned as exfat to store files for my vm. I'm using the tool virt manager to manage this. While trying to store the vm on SSD I got this message: "The emulator may ...
user1686925's user avatar
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Does GNOME or KDE have a way to block the Meta/Super key for a specific apps, like Virt-Manager or other VM sessions?

This would be useful for something like Teradici, where a user using a remote Mac may use the CMD, which is equal to Meta/Super/Win in a traditional/Windows keyboard. One other thing to note, Meta key ...
YamiYukiSenpai's user avatar
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1 answer
2k views

What is the proper virt-install location url to use for ubuntu when installing via http?

I'm trying to install Ubuntu in a vm using Virtual Machine Manager. I do however get the following error which leads me to believe that I have not pointed to the correct url. Manually selecting ...
azzid's user avatar
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541 views

virt-manager guest OS not grabbing key bindings on Ubuntu 22.10

I have recently noticed that when I press key bindings like super, ALT + TAB and etc. It activates my host OS instead of my guest OS. So when I try to go to the applications menu on my guest by ...
nose_gnome's user avatar
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Hyper-V with Ubuntu 20.04 Guest No Virtualization

On windows server 2012 install Hyper-V with VT-x in de bios enabled. The guest is Ubuntu 20.04 lscpu give: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit ...
ronald's user avatar
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1 answer
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Rhythmbox & Virt-Manager won't launch on 22.10 - errors seems to be related to "controls.cpp"

Edit 2 Virt-Manager was reporting the same last 2 lines whenever it locks up. [Sat, 29 Oct 2022 17:13:55 virt-manager 72529] DEBUG (vmwindow:185) Showing VM details: <vmmDomain name=Lubuntu id=...
YamiYukiSenpai's user avatar
2 votes
1 answer
3k views

Boot Physical Windows Drive with Virt-Manager/QEMU

I have two separate hard drives in my computer. The first is Kubuntu. The second is Windows 10. I've successfully gotten the Win10 drive botted and running in VirtualBox. However, VirtualBox does not ...
Serenova's user avatar
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11k views

Setting up a bridge for host and vm

I'm having quite a lot of problems setting up a network bridge for both my host and my vm to use. The host (os of the server) is Ubuntu 20.04.4 LTS. The VM (using KVM and virt-manager) is TrueNAS Core ...
Cas's user avatar
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4k views

Is it a good thing to run virt-manager as sudo?

I just installed qemu-kvm and virt-manager. But when i run virt-manager by clicking the icon it is not connecting to kvm. But when i run $ sudo virt-manager KVM connects. i've been told that running ...
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1 answer
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Virt-Manager NAT network interfaces stop working if host connection is restarted

I'm running Ubuntu (Mate) 20.04 on a workstation and I often use virt-manager to host various virtual machines for testing purposes (not for production VMs). I have found that if networking on my ...
Greg Ramey's user avatar
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1 answer
71 views

problem on ubuntu bridges installation

I'm following the instructions, but it is not working. Here is my original 00-installer-config.yaml file: # This is the network config written by 'subiquity' network: ethernets: enp2s0: ...
deeeeeeeeeen's user avatar
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5k views

How to enable 3D acceleration on Windows VM in virtual machine manager

I have tried setting Type to Spice server and opengl on in display Spice and in Video Virtio setting the model to Virtio and 3D acceleration on, but that made the Windows VM unusable because of the ...
Aelius's user avatar
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1 answer
3k views

Virt-manager missing architecture types

I am running 21.10 with virt-manager 3.2.0. I have installed: qemu-system-aarch64 qemu-system-i386 qemu-system-x86_64-microvm qemu-system-arm qemu-system-x86_64 qemu-system-x86_64-spice ...
flyinggreg's user avatar
2 votes
3 answers
8k views

What are the different versions available as Ubuntu cloud-images?...General Guide for Ubuntu Cloud Image use in Virt-manager 2021

I'm soooo thrilled to finally find prebuilt Ubuntu images. I was using osboxes, but the file size when converting is 500GBs and tedious to compact. Fresh installs are tedious, especially when 90% of ...
alchemy's user avatar
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2 votes
0 answers
771 views

Enable BRIDGE network for Virt Manager in Ubuntu 21.04 with a Wireless Network only

I've been using Boxes without any problem, the only missing functionality is to access the network outside the guest environment (Boxes Sandbox), from/to another computer in the same LAN. Because ...
logicito's user avatar
  • 391
1 vote
1 answer
1k views

Ubuntu MATE: How to enter and exit full screen view using key combination in virt-manager?

Is there a key combination to enter and exit fullscreen view in virt-manager, while a virtual machine is running, and its window open? Obviously I can enter or exit using mouse: To enter: Click View &...
Jags's user avatar
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2 answers
592 views

VMs reset after suspend

Sometimes, when I close and open the notebook lid, my VMs are like this. It appears locked but actually what happened is that all the apps got closed and I to unlock the screen and reopen everything. ...
Guerlando OCs's user avatar
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1 answer
797 views

virt-manager windows 10 guest usb passthrough logitech brio webcam

here is my setup: host: ubuntu 21.04 libvirt: v7.0.0 guest: windows 10 pro N (version 21H1, OS build 19043.1083) i am trying to connect my logitech brio webcam to the guest machine. i set up the ...
vampiire's user avatar
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1 vote
1 answer
1k views

How to use microphone in KVM, virt-manager based Virtual Machine?

I am using Ubuntu 20.04.2 (64-bit) as host and Q4OS(32-bit) as guest. I have added camera from USB host devices and hence it works now on using google meet in virtual machine. But I am still unable to ...
Anurag Pathak's user avatar
4 votes
3 answers
45k views

How to use OpenGL/3D acceleration in virt-manager with ubuntu?

Currently on Ubuntu 20.04 both as host and guest, I followed http://ryan.himmelwright.net/post/virtio-3d-vms/ and activated 3D acceleration on video, and OpenGL on dsplay, but on VM launch I get SPICE ...
Guerlando OCs's user avatar
0 votes
1 answer
15k views

How to redirect an USB 3.0 device to VM in virt-manager?

usb 3.0 devices never worked on virt-manager for me. I'm running Ubuntu 20.04 on both host and guest, and only 2.0 redirection works. When I do 3.0, it simply does not appear on the guest on lsusb ...
Guerlando OCs's user avatar
0 votes
1 answer
2k views

libvirtd[num]: Failed to open file '/sys/class/net/veth7a03557/operstate': No such file or directory

I want to install virt-manager and kvm, I done it but when I write It shows me error below sudo systemctl status libvirtd.service jūn 11 12:04:25 intelli5 libvirtd[916]: Failed to open file '/sys/...
Elvin Jafarov's user avatar
1 vote
0 answers
109 views

Ubuntu server does not detect DHCPv4 on virt-manager

I am installing ubuntu server on virt-manager but it can not detect DHCPv4. I click continue without network then it gives me error below when I install or update something failed to fetch http //...
Elvin Jafarov's user avatar
1 vote
0 answers
1k views

KVM-QEMU-SPICE: drag 'n drop files from guest to host?

Spice's guest tools work well for file transfers from host to guest, but don't work from guest to host. Spice's Webdav extension is a good workaround, but it has drawbacks (doesn't work from virt-...
Daniel Krajnik's user avatar
0 votes
1 answer
248 views

Is the allocated number of CPUs freed to the host machine when I pause the virtual machine?

In KVM virt-manager, is the allocated number of CPUs released from the VM to the host machine if I pause the virtual machine? If the allocated CPUs are released when I pause the virtual machine, I ...
Håkon Hægland's user avatar
4 votes
1 answer
6k views

What is CPU topology in kvm virt-manager?

In KVM virt-manager what is the meaning of Sockets, Cores, and Threads ?
Håkon Hægland's user avatar
2 votes
1 answer
962 views

Unable to install virtual machine that has passthrough NIC. Is there a fix?

Can I install VM with passthrough NIC? I did all the required steps. I enabled iommu in /etc/default/grub and I ran the script that show me iommu groups. Here is the output: IOMMU Group 0: 00:...
Hosni's user avatar
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3 votes
1 answer
8k views

Using Webcam and Microphone in Virt-Manager

I have a Kubuntu 20.04.1 LTS as my Host OS, and I have a Fedora installed as guest using Virt-Manager. Is it possible to use the built-in Webcam and Microphone of my laptop in the Guest-OS using Virt-...
Atul Gopinathan's user avatar
0 votes
2 answers
973 views

Ubuntu 20.10 VM restarts sometimes after wake from sleep

I'm runing ubuntu 20.04 on the host and Ubuntu 20.10 on two VMs. I always let them open and running. Sometimes, after waking the laptop from sleep, one of them has the screen locked (they both are ...
Guerlando OCs's user avatar
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0 answers
55 views

What to do for reusing backing images for Ubuntu guests?

I am currently using virt-manager on Ubuntu desktop to make VMs to test things and so I want to use backing images to quickly bring up a system whether it's a desktop or server install. Afterwards, I ...
Jo-Erlend Schinstad's user avatar
0 votes
1 answer
3k views

No internet connection on host when Ethernet is Bridge for Guest VM (Ubuntu 20.04)

I setup a bridged connection modifying the netplan file in /etc/netplan/ and setup the bridge device using nmcli. Below is my netplan file: # Let NetworkManager manage all devices on this system ...
Duder's user avatar
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2 votes
0 answers
5k views

how to disable msr in virt-manager on ubuntu 20.04?

I'm trying To passthrough ethernet adaptor, i enabled immmou, when i boot the virtual machine it give me this `Error starting domain: internal error: qemu unexpectedly closed the monitor: 2020-08-...
Hosni's user avatar
  • 49
1 vote
0 answers
546 views

If I reinstall qemu on my machine will all my vm data be deleted? Is there anyway that I can preserve my VM data?

I'm having some issues with qemu. For some reason libvirtd.service does not initialise during startup even though it's enabled in systemctl. I have to manually enter the sudo systemctl start libvirtd....
Aditya Joshi's user avatar
1 vote
1 answer
2k views

How to disable exit full screen popup in virt-manager

I'm using virt-manager with kvm, however I've found that in fullscreen mode (with spice), the exit fullscreen popup gets in my way often. Is there a way to disable this popup from showing whenever I ...
James Palmer's user avatar
1 vote
1 answer
656 views

Virt-Manager gui missing "light bulb"

I installed "virt-manager" 2.2.1 on my 20.04 desktop and created a VM in it. I find that many of the settings require clicking the "light bulb" on the toolbar - but mine doesn't ...
DavidF's user avatar
  • 178
2 votes
1 answer
5k views

Error getting virt-manager to work with LXC

I'm trying to get virt-manager working for LXC containers in Ubuntu 20.04 beta. I already installed the lxc package through apt. Unable to connect to libvirt lxc:///. Failed to connect socket to '/...
warsong's user avatar
  • 417
8 votes
1 answer
4k views

Nested KVM won't work (guest freezes)

I'm running, as host, Ubuntu 19.10 with kernel 5.3.0-40-generic. In the guest, Ubuntu 18.04.4 with kernel 5.30.0-40-generic. When I launch the Android Emulator from Android Studio, the entire guest ...
Guerlando OCs's user avatar
1 vote
2 answers
17k views

Multipass, virt-manager and bridged network

I'm just starting to use Multipass, and I have found that some of the documentation is sparse (or I don't know how to find it properly). I am running 19.10, with QEMU and libvirt installed. I created ...
Tom Davidson's user avatar