Questions tagged [libvirt]
The libvirt tag has no usage guidance.
140
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AppArmor issues with Libvirt
I have a fresh Ubuntu Server 22.04.3 and Debian 12.1.0 installed and updated. Along with Cockpit and Cockpit virtual machines on both tests machines.
I am getting the following errors and warning when ...
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205
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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 ...
- 101
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37
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Is there a serial BIOS in QEMU/KVM?
I'm trying to bisect a kernel issue which causes a VM not to boot. To do that, it would be nice to get serial console output from BIOS via virsh VM console. (For example, GRUB can use UART0, but ...
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102
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I can't install libvirt Ubuntu 22.04
I'm trying to vagrant up a VM with libvirt as provider but I'm getting the following error:
The provider 'libvirt' could not be found, but was requested to back
the machine 'default'. Please use a ...
- 21
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71
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Volume for domain is already created. Please run 'vagrant destroy' first
I'm trying to create a vagrant vm with vagrant up and libvirt as provider. But when i'm running the command i'm getting this error = "Volume for domain is already created. Please run 'vagrant ...
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131
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systemd: intercepting poweroff, shutdown, reboot and alert us we still have KVM QEMU guest(s) running
I want to interrupt a poweroff or reboot if KVM/QEMU Guests are still running.
It should work regardless whether shutdown/reboot is requested from XFCE, or from terminal. I already have a script that ...
- 116
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36
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Can't start up vagrant box with libvirt as a provider
I'm trying to start up vagrant box with libvirt as a provider but i can't.
I'm getting the following error. Name .at_default of domain about to create is already taken. Please try to run vagrant up ...
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115
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How to connect to local KVM guest via remote SSH tunnel to ssh
I try to set up a connection as follows:
ssh -f -N -L 5916:localhost:22 [email protected]
[email protected]'s password:
It asks for a password , but the connection doesn't work.
nmap ...
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0
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1
answer
224
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How to set different dynamic IP address for each QEMU VM?
(Warning, предупреждение, попередження, avertissement (and whatever your language is): English is not my primary language. I wrote this through a translator).
I need to run about 7 virtual machines ...
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760
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No internet connection in VM with Libvirt NAT
Hello super users,
I am trying to get an internet connection up and running in my KVM/QEMU VM through Libvirt's default NAT.
Unfortunately, the guest (Windows 10) sees the virtual adapter as an "...
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2
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0
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384
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Allow a QEMU VM access to the internet, while blocking access to LAN
Host OS: Arch linux
I have read the qemu and libvirt documentation regarding networking but still cannot get this to work. I am trying to set up a Linux virtual machine for general use that has access ...
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1
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59
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Libvirt routed network - can not connect guest VMs to external Router
I am trying to build a virtual lab to test some NAS64 capabilities with Cisco ISR Routers.
The goal is to have IPv4-only and IPv6-only Guests talk to each other via a Cisco ISR 4321. The Basic idea ...
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20
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which is the right location for libvirt in ubuntu?
Not sure why libvirt and KVM install is becoming a dirtiest of all experience for me.
this is ubuntu 20.04 LTS and it is confusing like hell.
does anyone know which is the 'right' and default location ...
- 101
2
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1
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303
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How to connect standalone QEMU sessions to libvirt user-session?
I would like to have qemu started machines running in user space, but during development I would like to issue commands to it using virtsh. (note, this is not because I need virtsh, but the QEMU ...
- 4,774
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179
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Apple silicon M1 vagrant plugin install vagrant-libvirt error
I am on an Apple Silicon M1. I want to use libvirt with vagrant.
I got installed:
❯ brew -v ...
- 101
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89
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Vagrant synced folder from Linux host (libvirt) to Windows guest without using rsync?
I've spent hours on this and found a lot of outdated, unmaintained or abandoned plugins from sshfs, smb, better-smb, nfsd and many others. I've read blog posts, GitHub issues, most of which are 6, 7 ...
- 101
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2
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711
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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 ...
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1
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168
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Install libvirt-vagrant crash on MacOS ARM (Failed to build gem native extension)
I'm trying to install the plugn Vagrant-libvirt on my MacOS ARM (Monterey) but I can't install the plugin vagrant-libvirt
I installed theses packages with brew before :
brew install --cask vagrant &...
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147
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Pin guest CPU cores to Host CPU cores in vagrant using a libvirt provider
I am using Vagrant with the libvirt provider. In my VM config, I would like to pin individual guest CPU cores to individual host CPU cores. As far as I know, this can be done in libvirt xml-...
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249
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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 ...
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4
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564
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Intel GVT-g: Scrambled graphics on virt-manager
The virt-manager video is scrambled on this VM configured to use Intel's GVT-g GPU pass-through. The screen works, I can log in on it, manipulate things on the desktop. I just can't read anything.
...
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130
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virsh: after moving my storage pool from /var to /home, I can't create new external snapshots - "Could not open backing file"
I'm on Fedora 36, virsh 8.1.0. I ran out of space in /var/lib/libvirt/images, so I moved my images to my home folder, as per this guide https://ostechnix.com/how-to-change-kvm-libvirt-default-storage-...
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93
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(libvirt/libxl) MS-DOS 6.22: Switching keyboard mapping kills input under Xen but works normally in QEMU
Since there are some old DOS games that I want to play (namely Ultima Underworld I and II) I have set up an MS-DOS VM under Xen (unfortunately Xen doesn't support / accept virtual floppy drives so I ...
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1
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322
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The cpu die info by virt-install
I know that the cpu die info can be assigned by XML.
<cpu match='exact'>
<model fallback='allow'>core2duo</model>
<vendor>Intel</vendor>
<topology sockets='1' ...
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1k
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How to make a VM on a bridged network interface accessible from LAN?
Context
I have the following network :
a router (IP 192.168.2.254) which handles DHCP on 192.168.2.x network
a computer1 (IP 192.168.2.1) under Linux (Debian 11) using ufw as firewall
a computer2 (IP ...
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2
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372
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libvirt and hotswappable single USB port with virt-manager - almost there?
Description
USB not visible on Debian guest. I cannot see anything obvious from the logs but because I do not have much virtualisation experience I assume I missed a step in the configuration, ...
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131
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How to coerce libvirt into making systemd include p0 when enumerating network interfaces?
After importing a virtual machine exported from VirtualBox into libvirt, the network interface shows up as ens3. Would it be possible to adapt the domain configuration to make it instead appear as ...
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1k
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Integrated GPU passthrough performs better *without* hardware acceleration
First, some background on the iGPU passthrough since it might be relevant:
One of my VMs should be able to play both audio and video over the motherboard's physical HDMI port. In my case I'm ...
- 111
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228
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Libvirt conf - cdrom boot issues
I am having issues with the booting debian or ubuntu netinstall images when using libvirtd, I get the menu, but simply get this when selecting the menu optiont o install:
loading /install.amd/vmlinuz ...
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1
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2k
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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 < ...
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1k
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Does IP required for bridge interface in KVM host
We have a requirement to configure bridge on SLES host and add it for KVM guest as bridge mode for public IP.
In this case, Is it mandatory to have ip on the bridge interface of the SLES host
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700
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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 ...
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4k
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KVM-QEMU + Libvirt - CPU Pinning
I would like to ask, if it is possible to reserve cores just for particular VM's and prevent others to use them. Let me explain closer:
I'd like to have 2 virtual machines to be pinned to cores 0-7 ...
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1
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4k
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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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1
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2k
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How to run linux VM on MacOS with Vagrant and QEMU?
Can anyone advise me how to run a headless linux (x86_64) virtual machine on a MacOS Monterey (Intel) using QEMU with HVF?
So far I have installed the libvirt and qemu with homebrew, also vagrant-...
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1
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528
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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 ...
0
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1
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255
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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-...
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193
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(Why) should I disable libvirt networks?
After shutting down a virtual-machine using QEMU/KVM with libvirt the libvirt default network is still active e.g.
$ virsh net-list --all
Name State Autostart Persistent
--------...
5
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3
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17k
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Unable to connect to internet in Windows 10 VM using KVM/QEMU
I have been trying to set up a Windows 10 VM in my current Arch Linux (5.13.12-arch1-1) host system. I set up the VM using libvirt and KVM/QEMU using virt-manager as GUI.
The NIC card has been setup ...
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500
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Why is pfSense giving me incorrect memory usage when VirtIO memory ballooning is used?
I am running pfSense as a KVM/libvirt guest. When I configure memory and currentMemory both to 2048 MB the pfSense dashboard shows ~2GB of ram and 18% utilization. If I set memory to 2048 MB and ...
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253
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cpu affinity reset by libvirt / cgroups
When starting my VM, the CPU core affinity of all processes on my archlinux host is reset to all cores. The same happens when the VM stops.
My VM uses cpu pinning, but this didn't happen until a few ...
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381
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swTPM vs. Hardware TPM: Are there any security downsides?
Backstory:
For a while, I've been wanting to install my next Windows PC as a VM on a Linux platform to allow me to re-image my machine when I loose a disk or Windows poops itself* (I'm thinking Clear ...
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244
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Physical SATA Disk attached to Qemu Windows 10 VM causes Boot Failure
I have a Windows 10 VM setup using Virtual Machine Manager (i.e. libvirtd) that is completely setup and works. The primary drive it uses is a qcow2 file.
Now I am trying to attach a physical SATA ...
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4
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8k
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libvirt / KVM/QEMU - Networks: What does "Open Network" do?
When setting up a network with libvirt & virt-manager, there is an option to choose "Open Network" as the "Network Mode" when forwarding traffic to a physical network.
What ...
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4k
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Can't connect to a remote host with virt-manager
I'm trying to connect from a laptop (computer1) to a host (remote1).
On computer1 I have user1 on the host I have a different user (user2).
Both systems are running Debian, the remote1 system is a ...
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49
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Is there a command to list the locks aquired by libvirt/virtlockd?
I have a setup using virtlockd's indirect locks (that use empty files with long hex strings as file names) on a shared filesystem being used by multiple cluster nodes.
I can see that each node has ...
- 512
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3k
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Virsh error, Failed to connect socket to '/var/run/libvirt/libvirt-sock': No such file or directory
I am trying to setup KVM, but when running certain wirsh commands like:
$ sudo virsh net-define br10.xml or $ sudo virsh pool-define-as debian_pool dir - - - - "/home/$USER/VM"
I get this:
...
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2
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5k
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virsh - list all mac addresses for all network interfaces of any type
I'm trying to identify one of a few dozen virtual machines by a given mac address (52:54:00:: OUI, mapping to QEMU),
the following lists the dhcp table from the NAT based virtual machine adapters, ...
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829
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virt-manager can't connect to libvirt: "Connection does not support required domain listing APIs"
I can't connect with my local virt-manager (version 3.0.0) to the old remote libvirt setup (version 0.8.3):
Unable to connect to libvirt qemu+ssh://[email protected]/system.
Connection does not ...
- 186
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1k
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Installing Windows virtualization features within KVM virtual machine causes early-boot guest crash
See updates below for what I've discovered about the more general nature of this problem.
I have a Windows VM running OVMF firmware with VFIO passthrough for a graphics card running on an Arch Linux ...
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