Questions tagged [kvm]

Questions about the Kernel-based Virtual Machine, an open source virtualization infrastructure to use the Linux kernel as a hypervisor.

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Enabling KVM for Android Emulator

I am using Android Studio 4.0 and Ubuntu 20.04 LTS Desktop I have installed KVM from here, but when i am using android Emulator, it lags. How can i enable KVM for Android studio. Processor: AMD ...
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Beginner GPU passthrough Windows Host to Ubuntu Guest (Whats KVM? I use vBox)

I run win10 with 18.04LTS VM on virtual box. I am not experienced in VM's but have a need for linux (personal use) so I thought vBox was the only solution. I have 2 discrete graphics cards so i ...
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Noob issue: Cannot set up unRaid VM with Unbuntu 20.04

I am new to unRaid and Unbuntu. I tried to add a VM in unRaid 6.8.3 using Unbuntu 20.04 and received the error message below. I had just activated the SVM in the bios. Ryzen 5 3600 with Asus ...
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Ubuntu machine periodically hanging

I have a virtual machine running Ubuntu 16.04.6. Its sole purpose is to run Mayan EDMS (a Python document archival system) so I can have a mostly paperless household. It has been working fine for ...
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KVM on Ubuntu Server 20.04 on Raspberry Pi4

I have Ubuntu Server with LXQT desktop running on my Raspberry Pi4 4GB. I have also installed KVM on it along with Virtual Machine Manager. My question is can I use the Ubuntu Server 20.04 Raspberry ...
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QEMU-KVM, GPU Passthrough, Windows 10 - Crashing

I've been happily running a couple of Windows 10 VMs on QEMU-KVM with GPU Passthrough for the last few years with little issue. A few days ago however (21 May 2020) both my VMs started crashing on ...
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Convert .iso to .qcow2 [duplicate]

I have ubuntu20.04 lts iso file downloaded from ubuntu website. Can you please guide to convert the iso file into qcow2 file. For instance I need the file ubuntu.qcow2 to be made from ubuntu.iso
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Help compiling a kernel module

I want to compile a particular loadable kernel module, but am having issues that I can't seem to fix... Do guide me if I am doing anything wrong or if my understanding is flawed somewhere... So I ...
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1answer
130 views

Want KVM/QEMU version 5 for Ubuntu 20.04

A few weeks ago KVM/QEMU version 5 came out. However, it's not bundled in the 5.4 kernel of Ubuntu 20.04 LTS as far as I know. I would like to set up a new virtualization host using Ubuntu 20.04 and ...
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140 views

Enabling OpenGL in Windows 10 Guest VM in QEMU

I'm trying to install Sketchup 2019 on a Windows 10 VM (Ubuntu 18.04, QEMU 3.1.0), however Sketchup requires OpenGL 3.1 or later in order to run. I had asked a similar question previously hoping by ...
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kvm: exiting hardware virtualization [duplicate]

I have used Linux on my old PC for a long time without problems. Recently I got a new PC with an Nvidia 1050 GTX graphics card. I tried to install Ubuntu, and the installation seemed to be fine until ...
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Can't Install Ubuntu 20.04 KVM Guest

I am trying to install Ubuntu 20.04 in the same manner I install all my other KVM guests, by specifying a web location to install from. It appears that no matter what web address I put in for the ...
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Error pops up when trying to start a vm in virtmanager

I'm using this repository as a guide to virtualizing on Ubuntu 20.04. The virtualized OS is Catalina 10.15.4. Error pops up when I try to open virtmanager and start the VM I created. Also when i try ...
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High host CPU load with KVM running Win2008R2

Running Ubuntu MATE 20.04 LTS, I've created a test VM guest with Windows 2008R2 to find the most suitable settings (as I may have to switch to 2012 if configuring everything to run properly fails), ...
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Is there a way to specify image permissions when creating an image using virt-install?

I'm using a virt-install command to create a .qcow2 image which is supposed to be used as a template. This template should be cloned (using qemu-img create) when certain functions in the framework I'm ...
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mdadm raid 1 /md0 disappered after system reboot

at this point i am all out of hope and ideas. I installed qemu and kvm and the gui. then i reboot my system to find my drive names had changed. /sdb and /sdc are now /sdi and /sdh My /md0 is just ...
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Display issues with installer

I am trying to install Ubuntu 18.04 server but always get display issues after booting into the installer from grub. Grub displays fine but once the kernel starts to load the display is scrambled as ...
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Video problems with EFI boot on KVM/QEMU

when I boot ubuntu-20.04-legacy-server-amd64.iso on Proxmox 6.1 (uses KVM/QEMU hypervisor) with BIOS=OVMF (UEFI) I get corrupted video after select "Install Ubuntu Server" on Grub. When I boot ubuntu-...
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Missing option “install a minimal system” when installing Ubuntu server in KVM or VirtualBox

Normally when installing Ubuntu server after selecting the language you can press F4 to access alternative installation modes, and from there you can choose to install a minimal system as per the ...
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Ubuntu Server 20.04 LTS as KVM host, cannot be accessed from subnets

Following various recipes I've build this topology. Intel CPU, one integrated NIC used for WAN, a quad-port PCIe card, only two used for LAN and TRUNK; Ubuntu Server 20.04 LTS as KVM host; pfSense ...
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installing ubuntu using virt-manager

In ubuntu 18.04 i installed virt-manager using this tutorial.Then install ubuntu 18.04(client) in virt-manager.After installation of ubuntu in virt-manager, the virt-manager ubuntu rebooted but it ...
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Virt-Manager error to create an images qcow2 on an external HDD

I've installed Virt-Manager on Ubuntu 20.04 Desktop using the same tasks used on the 19.10. With this last one I didn't have any issue but on 20.04 when I try to create a VM on an external HDD I ...
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virt-manager install ubuntu “booting from hard disk” message

In windows operating system I installed VirtualBox. In VirtualBox, I installed ubuntu 18.04(server).In this VirtualBox Ubuntu, I installed virt-manager and then install ubuntu 18.04(client) in virt-...
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How do I specify location on Ubuntu 20?

On ubuntu 18.04, I'd virt-install my machines using --location http:// However, when trying this on 20.04, i always get the "Can't find cd image". How do I install using virt-install?
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FATAL: Module kvm_intel not found in directory /lib/modules/4.19.84-microsoft-standard+ when I try to enable KVM on WSL on Windows 10

I'm trying to enable KVM on WSL2 on Windows 10 x64 bit. I've found this tutorial and I'm following it : https://gist.github.com/offlinehacker/b1d96515f87a47bd0b0bea574eab5583 I've cloned and ...
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48 views

Is it possible to configure KVM on guest Ubuntu 18.04?

So my host system is Windows 10, and I prepared guest Ubuntu 18.04 system via Hyper-V, this was setting for React Native development, but when I tried starting up Android Emulator I got an error, that ...
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37 views

Where are hvm kernel and initrd for ubuntu 20.04

I'm trying to install ubuntu kvm's and I can't find the hvm kernel and initrd images. Where are they? I've downloaded the desktop iso, live server and focal-live-server iso and it's not on any of them....
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Kernel compilation with errors does not produce the vmlinux file when trying to enable KVM on WSL2

I would like to enable KVM on my WSL2 virtual machines. I'm following this tutorial : https://gist.github.com/offlinehacker/b1d96515f87a47bd0b0bea574eab5583 When I tried to build the kernel I've got ...
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33 views

Unable to access location

This is what i got when i turn off my laptop and i am the only user: This what i got when i try to access another partition: Hello a few days I was try gnome-boxes and it didn't work and after ...
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55 views

CONFIG_KVM=m in my .config, but why is KVM in the output of lsmod?

I just viewed the .config of ubuntu in /usr/src/linux-headers-5.3.0-46-generic/.config. There is CONFIG_KVM=m. But when I use lsmod, kvm moudle is in the output. CONFIG_XX=m means that the moudule is ...
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VFIO Passthrough NVIDIA on Kubuntu 18.04/20.04. ERROR: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=io+mem

I'm attempting to passthrough NVIDIA on Kubuntu 18.04/20.04 (have both operating systems installed). I've followed all the steps in this article "https://blog.zerosector.io/2018/07/28/kvm-qemu-windows-...
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Create bridge network for virt-manager VM to get DHCP IP from router

I am using virt-manager for managing qemu VM but I need to create a new bridge network with my WIFI adapter (wlp2s0) such that my VM can get the IP address directly from my router and not via NAT. My ...
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44 views

How to enter license key for virtualized Windows? [closed]

Generally, how is Windows 10 run on Linux? By which I mean, once the ISO is downloaded how is licensing dealt with? see also: https://superuser.com/q/1541418/55747
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Windows SSD visible in BIOS and GRUB but not in Ubuntu

I have been playing around with VFIO and using Ubuntu 19.04 to run a KVM with Nvidia passthrough along with raw storage input to an SSD and HDD. Everything was working fine this morning, and I was ...
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KVM Virtual Machine Manager Shared Folder Mount Error

I've created an Ubuntu 18.04 LTS Desktop VM inside Fedora using Virtual Machine Manager. I'm trying to mount a host directory in the guest OS but it's not working. I used the instructions provided ...
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How to enable KVM on gnome-boxes?

I've been trying to work out why Windows 10 in gnome boxes is slow, and noticed gnome-boxes seems can't connect to KVM in libvirsh (gnome-boxes:9264): Boxes-WARNING **: 17:14:11.078: util-app.vala:...
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172 views

Failed to connect socket to '/var/run/libvirt/libvirt-sock'

I have problem with libvirtd, the service is inactive even though I run systemctl start libvirtd.service. I am member of libvirt and kvm The output of systemctl status libvirtd is libvirtd.service -...
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1answer
52 views

Ubuntu 18.04 Dual Display with one Display switched through KVM Switch (Keyboard Video Mouse Switch)

I have two computers (main difference is the graphics main computer has Nvidia GTX 1070 Ti- secondary has Intel HD630) and upgraded to use two monitors. Only one monitor is switched through the kvm ...
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grub rescue in kvm error: attempted to read or write outside of disk “hd0”

Here is my working environment: Ubuntu 16.04 I installed kvm vm under Ubuntu 16.04 environment is Ubuntu 14.04 After modified to the kvm's .xml file because of the bridge problem. Later it turned ...
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24 views

Sharing network with guest in qemu after interface change

Hey I have an issue with qemu/kvm I use the virtual machine manager, issue probably starts with something going wrong there. I tried to purge the packages a few times but my vm even kept running. So ...
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Ubuntu 19.10 stuck at purple screen during boot using KVM

I am trying to boot into a Ubuntu 19.10 machine through the motherboard's IPMI's KVM feature. However, it gets stuck on a blank purple screen sometime during the boot process. I am able to SSH into ...
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Ubuntu 18 LTS and an LG Monitor with a built-in KVM

I have a LG Electronics UM95 34UM95-P 34 Monitor which has a built in KVM switch. I am running Ubuntu 18 LTS on an MSI GS 65 Stealth that has a USB-C (Thunderbolt-3 port). My monitor is a old, and ...
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652 views

Simple Bridge with netplan doesn't work (19.10)

I hope you can help me. I'm pretty sure the solution is quite simple, but so far I'm unable to put the finger on the problem.... I'm trying to setup a network bridge adapter with Netplan to use it ...
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2answers
342 views

kvm, pci passthrough: unable to detach nvidia card for kernel 5.4 andabove

Normally when using pci passthrough the nvidia driver is replaced by the vfio driver. setting the correct option in /etc/modprobe.d/vfio.conf achieve that. Staring with kernel 5.4 The vfio driver is ...
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92 views

How to get ubuntu server raw image

I want ubuntu as VM in KVM with qcow2 format. currently I can get the .iso format want can convert to the qcow2 format but this doesn't work. so for this there cloud image with .img format and can ...
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1answer
315 views

Why does host and bridge get an IP but not the virtual machine?

I'm struggling to connect my KVM virtual machine to the local network. $ brctl show br0 bridge name bridge id STP enabled interfaces br0 8000.4c5262097e59 yes ...
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1answer
426 views

20.04 “No network interfaces detected” when installing Focal as KVM guest [closed]

I obtain the Ubuntu Server 20.04 iso file from http://www.cdimage.ubuntu.com/ubuntu-server/daily/20200302/ I've tried several ways to install under KVM, but always hit "No network interfaces ...
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20 views

SSH Across Networks

my network looks like this: DD-WRT (10.0.0.1) -> MAAS (10.0.0.2 && 10.11.0.1) -> KVM Host (10.11.0.2) I’m wondering how I can connect to KVM Host from another computer connected to the DD-...
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1answer
72 views

The loss of the internet connection due to the network bridge configuration

I'm following the tutorial on how to set up KVM on Ubuntu 18.04. There is a line saying : "Before you can dive in and start making virtual machines, you're going to need to set up a network bridge." ...
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40 views

Can't install Ubuntu Server 18.04.3 in KVM with minimal disk size

I am trying to install Ubuntu Server 18.04.3 in KVM with minimal resources. When I checked the official Ubuntu System Requirements, it says for live server (which I am using) it needs 1.5 gigabyte and ...

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