Questions tagged [qemu]

QEMU is a cross-platform processor emulator.

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Ubuntu Installation on Qemu shows Black Screen - Without Graphics

I'm using a KVM-based virtual machine on OpenStack, and I'm trying to boot a virtual machine on that. I have installed QEMU emulator version 4.2.1 I tried to build a vistual machine using this command:...
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how to make ubuntu install iso file for arm64 machine on x86-64 machine?

I'm trying to install ubuntu 18.04 on a qemu virtual machine which is a modified version of qemu's arm virt machine. I checked that I can install ubuntu 18.04 on arm virt machine as directed here, a ...
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How to repackage/create ubuntu iso image with custom initialization script?

UseCase I have a requirement to create a custom ubuntu image from base ubuntu 20.04 , idea is that I want to package code along with OS such that I can create qcow2 file and use it to start the new ...
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Missing final newline

I'm very new to everything here and only got ubuntu today. Also I have no clue how to use the bit that makes it clear its code so apologies. I am trying to install git for a project and it says this: ...
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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-...
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Emulating armv8 AArch64 in Qemu on an x86 Linux host

i am trying to emulate Ubuntu/arm64 inside the QEMU emulator. Hence i am following the Ubuntu wiki (https://wiki.ubuntu.com/ARM64/QEMU) but i am not able to run it. First i installed qemu: $ sudo apt-...
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can't login to a qemu ubuntu server machine using ssh

I was following this tutorial : https://gist.github.com/george-hawkins/16ee37063213f348a17717a7007d2c79 except the machine is arm64. I created cloud.txt (observing the indentation carefully). The ...
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Android x86 VM on QEMU - Remote Display

I am in trouble with running Android x86 VM using QEMU on Ubuntu Server 20.04. The issue is Ubuntu Server has no display, how can I forward the VM display remotely or something that I can remotely ...
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How to enable offline cpu in qemu?

I am using qemu to run ubuntu16. I met offline cpu. I want to enable it. However, /sys/devices/system/cpu/cpu0 is not found. How to enable it? Thanks very much. ~$lscpu Architecture: x86_64 ...
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Single GPU passthrough

hey I have some problems with setting up Single GPU Pass through and need some help these are all the codes/ logs I'm getting.. What happens is when I click run on the kvm it goes black screen and ...
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LiveUSB from qemu image

Does anyone knows if I can create a bootable liveUSB (with persistence) from a qcow2 (or raw) image from qemu ? I tried to create a bootable pendrive using qemu-img convert, but the resulting pendrive ...
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GNOME Boxes: How to expose battery to guest OS?

I'm running a couple VMs via GNOME Boxes (libvirt qemu/kvm) on a Dell XPS 13. Unfortunately, these guest operating systems don't seem to understand they are running on notebook hardware, and hence do ...
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Qemu/KVM Postcopy migration fails in hirsute / v5.11 kernels (solved)

postcopy migration isn't the default but can in some cases be very useful With Ubuntu 21.04 Hirsute kernel being v5.11 postcopy migration will fail like: virsh migrate --unsafe --live --postcopy --...
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QEMU OpenGL errors when running Gazebo on Ubuntu guest

I'm trying to set up some QEMU Ubuntu VMs so my robotics team is able to remotely use the Gazebo simulation package. Everything works fine when I boot the virtual machine without GPU acceleration: ...
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Bridged networking in KVM/Qemu LAN addressed packets dropped

Summary: In a bridged KVM/QEMU configuration, network packets destined to guest VM do not get there. Configuration: The host is an up to date Ubuntu 20.04.2 LTS server; The guest is any of 3 VMs, a ...
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qemu-kvm 5.2 On Ubuntu 20.04

I am using ubuntu 20.04 for openstack compute nodes. I see the version qemu-kvm version 4.2 on ubuntu repos. How can I install latest qemu-kvm version 5.2 on ubuntu 20.04. Will there be any ...
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How to auto grab/release mouse pointer in QEMU/KVM?

I tried VMs in virt-manager (or vfio, I don't know the difference), and I found the auto grab and release function a total bargain. Now I switched to QEMU and I don't have this function (at least not ...
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1answer
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How can I host VMs on my Ubuntu Server for remote access within my LAN?

I've read a bunch about KVM, installed it and then successfully create a VM inside it using this guide. Now I would like to be able to access it from my other computers (Windows and Ubuntu) within my ...
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101 views

hotplug usb drive to a VM

As per this article: https://www.linux-kvm.org/page/USB I can create a disk image and attach it as a USB drive to my running VM. I tried this, via qemu-monitor-command option of virsh, but somehow ...
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Why would KVM intermittently cause 100% CPU load by “System interrupts” in a Windows 10 VM?

I'm running a hundred Ubuntu 16.04 LTS servers with basically identical hardware distributed worldwide. (I'm working on upgrading them to 20.04 LTS but certain unfortunate design decisions on the part ...
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I'm looking the kernel installer files for ubuntu 20.10 for armhf / raspberry 4 to virtualize it with qemu-kvm on arm64

I would like to virtualize ubuntu 20.10 for armhf / raspberry pi 4 on my jetson nano. Previously I've virtualized debian buster for armhf using this tutorial : https://translatedcode.wordpress.com/...
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Installing qemu-virtualized text-only Ubuntu on text-only FreeBSD host

I need to set up an Ubuntu VM on a FreeBSD-12 server which has no X-windows installed (it doesn't need one). The end goal is to run a certain automation script on that VM as a part of a bigger ...
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Unable to install qemu? [duplicate]

I used the following command: sudo apt install libexpect-perl qemu-system-x86 qemu-utils But, I received the following errors: Err:1 http://deb.debian.org/debian buster/main amd64 ovmf all 0~20181115....
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Installing libc6:amd64 on arm64 removes all system packages

I'm trying to install libc6:amd64 on an ARM64 ubuntu machine following this guide As per the instructions there I added the following to my sources.list: deb [arch=amd64] http://archive.ubuntu.com/...
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kvm virt-manager adding a device usb-wacom-tablet evdev

I am trying to use a wacom graphire2 in windows10 guest trough virt-manager 3.0 in a ubuntu 20.04 with qemu5 (also tried qemu4.2) in a gpu passthrough environment. Wacom works perfectly with usb ...
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398 views

qemu-system-x86_64: Display 'sdl' is not available

I'm trying to virtualize Android x86 on Ubuntu 20.10 with qemu-android provided by https://www.android-x86.org and I'm following this tutorial : https://www.android-x86.org/releases/releasenote-7-1-r5....
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How to enable selectively glibc 2.33 only for qemu 5

I'm trying to virtualize windows 10 arm64 on the jetson nano where I have installed ubuntu 18.04 arm64 (I can't upgrade it to ubuntu 20.04 because nvidia does not support it). To get the best ...
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virbr[n] randomly not start in Kubuntu 20.04

I have a Kubuntu 20.04 updated daily with qemu-kvm. I have the bridges: virbr0 virbr1 virbr2 virbr3 At startup normally everything works; but randomly 1, 2 or all virbr[n] don't start There is no ...
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ERROR: Could not detect Ninja v1.7 or newer (ubuntu 16.04) [duplicate]

While trying to install qemu-5.2.0, I found the build method has changed to mesa.(I don't know why they change things sometimes to make our lives difficult... :) ) Under build directory, I did ../...
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Ubuntu Installation on Qemu/KVM Black Screen

I'm trying to install Ubuntu or higher on KVM. I have tried installing 14.04.6 LTS / 16.04.7 LTS and 18.04.5 LTS First i create Qemu Disk Image : qemu-img.exe create -f raw hdd.img 5G and when i boot ...
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How to copy all the necessary patched and working version files of a working qemu / kvm / libvirt configuration from xubuntu 20 to ubuntu 18

I'm trying to emulate windows 10 arm64 on my jetson nano,where I have installed ubuntu 18.04. At the moment ubuntu 18.04 is the only linux distribution supported by nvidia,for this reason I can't ...
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772 views

One cick GPU passthrough to VM in Gnome-Boxes?

Felipe Borges, Gnome Developer, spoke last year about new feature in gnome-boxes that allow simple PCI GPU passthrough to VM. However, I can't find any information on the gnome documentation or ...
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How to use kde connect with a android qemu vm

I have an android vm.I use qemu along with virgl for hardware acceleration.I had to build qemu from source for sdl and virgl support. I used the following build parameters ./configure --enable-sdl --...
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How to enable sound in qemu?

I am developing a plosia (persistent libre operating system for industrial applications) that is self contained on a high speed usb micro thumb drive. I wish to use QEMU for screen recording the whole ...
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309 views

Virtual Machine Manager connection failure

I am trying to create a Virtual Machine using Virtual Machine Manager. I have installed the following packages using the command: sudo apt install -y qemu qemu-kvm libvirt-daemon libvirt-clients ...
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VM internal error

internal error: vendor cannot be 0.' kurulumu tamamlanamıyor. Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 75, in cb_wrapper ...
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KVM/QEMU display resolution

I use Ubuntu 20.04 as host and as guest. My host allows a display resolution of 2560x1440 for example. Now I run a VM with virt-manager. Within the VM I try to change the resolution. In the settings I ...
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chroot debootstrap problem : no such file or directory

I would like to run X86 applications on my Jetson Nano using qemu and debootstrap on ubuntu 18.04. Actually I'm following this tutorial : https://www.youtube.com/watch?v=dzAoaFOJy7U&t=338s&...
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QEMU -display gtk and -display sdl not available | Ubuntu 20.04.1 LTS

Starting a VM with qemu-system-x86_64 (...) -display gtk produces error Display 'gtk' not available. This is a standard desktop installation (i. e. no modifications to qemu version). How do I get QEMU ...
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Moving large QEMU image files from damaged HDD to new drive impossible

Hmmm... I have a very strange thing at hand: Due to a system's HDD wearout failure (defective blocks) we obviously had to replace the HDD. Everything worked well until we started to move two files of ...
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QEMU not starting in desktop window as of 20.04

Greatings! After upgrading from 18.xx QEMU starts not as expected. System: Kernel: 5.4.0-60-generic x86_64 bits: 64 Desktop: Gnome 3.36.4 Distro: Ubuntu 20.04.1 LTS The launch command is unchanged:...
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I installed qemu on WSL, but I don't see the binaries in /usr/bin - help?

I ran this command on Ubuntu 20.04 LTS running on WSL: me@mymachine:~$ sudo apt-get install qemu Its output follows. It is suspicious that it only installed 123kb, surely qemu is more than that. ...
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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:...
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Will Office Home & Student 2019 work on Ubuntu + QEMU?

I have used Virtual Machine Manager QEMU / KVM very smoothly to run Windows 10 from Ubuntu, programs and everything else seem to work in virtual Windows without any problem. I am considering buying a ...
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QEMU cursor always visible

Host: Mint 20 (~any?) Guest: Ubuntu 20.04 (~any?) $ qemu-system-x86_64 --version QEMU emulator version 4.2.1 (Debian 1:4.2-3ubuntu6.10) Test (inside guest OS): Open some youtube video in a web ...
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1answer
120 views

virsh list print guest name

I am running latest Ubuntu 20.04 with KVM and when i run virsh list command it print UUID of guest vm instead of their real name hostname. (you can see in following output vm name is random UUID ...
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Is it possible to mount a folder shared between host and guest on Qemu?

Virt-manager gives the option of adding a Filesystem with a target path on host. I've tried many times to see what happens but I don't see anything on the host. Is there a way to mount a folder from ...
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784 views

KVM Bridge on Ubuntu 20.04 on Raspberry Pi 4

I cannot get networking inside a guest VM to work with KVM on a Raspberry Pi 4 8GB running the official Ubuntu 20.04 image. I have my networking configured correctly, as far as I can tell. And I'm ...
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508 views

QEMU/libvirt: guest VM does not properly shutdown

Since my recent upgrade from ubuntu 18.04 to 20.04, my guest VMs won't properly shutdown. Previously using ubuntu 18.04, I did not experience these problems. I have two guest VMs - one "standard&...
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204 views

Unable to Validate XML for KVM/QEMU Snapshot in 20.10

When trying to take a KVM snapshot using virsh snapshot-create-as --domain vm --name vm-snap --disk-only --diskspec "sdc,snapshot=internal,file=/var/lib/libvirt/images/vm.qcow2,,new", I get ...

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