QEMU (short for "Quick EMUlator") is an open source machine emulator and virtualizer.

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VirtualBox on QEMU host?

I have remote access to a QEMU Windows Server 2012 (64 bit) VM with 12 cores @ 2.8 GHz ("QEMU Virtual CPU version 2.0.0") and 48 GB RAM. For a project I wanted to set up a Linux VM on VirtualBox on ...
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How can I emulate Windows Server 2008 R2 with QEMU? / Cannot virtualize Win2K8 R2 using QEMU on Windows Host

I have used precompiled QEMU 2.2.0 (64-bit version) to emulate a PC running Windows Server 2008 R2. The Host OS is Windows 8.1 Enterprise 64-bit, and my CPU doesn't support Intel VT-x so I can't use ...
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qemu ARM: Unsupported syscall: 983040

I'm trying to run a ARM32 binary within qemu but I get seg fault: root@debian:~/squashfs-root# chroot . ./qemu-arm bin/xxx qemu: Unsupported syscall: 983040 qemu: Unsupported syscall: 983040 qemu: ...
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How to emulate pentium 4 with qemu?

Does anyone know if QEMU emulates pentium 4? It isn't in the list specifically, but i don't know about some of the listed architectures. qemu -cpu ? x86 [n270] x86 ...
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Show qemu command line from virsh

I am debugging a problem with a libvirt VM starting, and I want to see the exact command line that it is going to use to start qemu. Is this possible using virsh or some other utility?
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Why does my networking work while installing os in qemu but doesn't when I boot

I have a qemu system running arch-linux. While installing the device with: qemu-system-x86_64 -hda arch.img -boot d -cdrom archlinux-2014.12.01-dual.iso -m 1024 I can access the network from qemu ...
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54 views

OSX + X11 + KVM keyboard mapping

I'm ssh -Xing from my macbook air into a remote linux machine, on which I'm running virtual machines with kvm. Somewhere along the way, something is lost--it says I can press ctrl+alt to release the ...
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182 views

troubles with PCI-E passthrough with qemu on ubuntu: pci-stub/bind says no such device

so im trying to bind my second radeon card to pci-stub, as per instructions for setting up GPU passthrough in here, but once i get to binding the card to pci-stub, it tells me it isnt there. this is ...
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QEMU: Saving space in a “child” image?

I'm not exactly sure what the QEMU terminology is, so I'll clarify that "child" image means an image that has a backing image. I.e, an image that contains the differences between the backing image's ...
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119 views

Getting an already installed Android x86 partition to run on KVM

I have Android installed on sda3, and it boots fine when loaded from Grub with the following commands: set root='(hd0,3)' search --no-floppy --fs-uuid --set=root 977083a6-5762-4064-b860-39429b9e0cf8 ...
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311 views

QEmu with -runas parameter does not connect to user's pulseaudio session?

I am trying to set up a multi-headed workstation with one physical graphics card (pci-passthrough) per VM using qemu 2.1 on a ubuntu 14.10 server. The guest OSes are Windows 7 (also tried Windows ...
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How to make redboot work with different network adapter?

I have several VM's running in libvirt/qemu-kvm and I need to run another one that was given in virtualbox format. I converted images and created almost the same config in libvirtd, VM starts but ...
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97 views

Unable to start VM from php

From a php page I am trying to start Virtual Machine using virsh tool on KVM hypervisor but I am getting this error. error: Failed to connect socket to '@/var/www/.libvirt/libvirt-sock': Connection ...
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21 views

Is there an overview of machine and cpu compatibility and smp support for qemu 2.x?

I started an attempt to get an qemu 2.1.2 instance running which uses multple threads and cores of the host CPU and realized that the descriptions of -cpu help and -machine help neither provide an ...
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77 views

Qemu within an ubuntu image(virtualbox) cannot ping the host

Im running QEMU within an ubuntu image (of virtualbox). This virtualbox is installed in a windows 7(host). The problem is QEMU cannot ping the host but it can ping the ubuntu image. Here's some of ...
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113 views

QEMU won't start

I'm trying to run QEMU on Windows 7 and install Windows 95 from a CD onto MyHardDisk.img, with networking and a shared folder between host and guest. When I run QEMU from the command line, the ...
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300 views

“qemu-nbd --create” without sudo

I'm working on a custom OS, and the make recipe I wrote for creating a new disk image requires sudo for connecting/disconnecting the virtual HDD image to a /dev/nbdN device. Because I don't want sudo ...
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1k views

Install Windows Server 2012 R2 in qemu VM

I'm trying to install Windows Server 2012 R2, but right after loading Windows files I'm getting: Your PC needs to restart. Please hold down the power button. Error Code: 0x0000005D My command is: ...
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92 views

QEMU guest and Linux host networking configuration

+-----------------------+ +---------------------+ | bro - Host - Linux | | Guest - QEMU- Linux | | +------+ +------+ | | eth0 | | | tap0 |----| eth0 | | ...
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96 views

Weird output from linux `top` command

I got a weird output from command top, which shows the summation of the RES column is greater than my physical memory. For instance, I have a host with 64G physical memory and the swap partition has ...
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Creative X-Fi no sound in Windows 7x64 (Passthrough)

I am running a virtual Windows 7 x64 installation with qemu-system-x86_64 and a Creative emu20k2 Elite Pro (Titanium) soundcard passthroughed (with vfio) to the windows 7 machine. I passthroughed the ...
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105 views

Testing Linux Kernel in QEMU gives black screen after brief text

I'm trying to run a linux kernel (version 3.14) I custom built using make menuconfig. I am trying to test it in QEMU and this is the command I am trying to run: qemu-system-x86_64 -kernel ...
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613 views

How to create a fixed size virtual disk with qemu-img?

What's the best way to create a fixed size disk with qemu-img ? I tried doing this., and it always seems to be creating a virtual /growing disk, doing a ls returns the actual small size of the vmdk. ...
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26 views

Making qemu look better

I have a machine running kubuntu, and use qemu to run a VM. It looks really bad as you can see in the screenshot. What can I do to make it better? I prefer solutions that don't require sudo access, ...
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251 views

How to expand the file system for RPi emulation with QEMU?

I've recently grabbed a pre-compiled version of QEMU running Raspbian Wheezy for use on Windows as I would like to do some testing and a dev environment like this is far more kind than using the ...
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1k views

Copy/paste issue in Ubuntu virtual machine (QEMU-KVM) with Awesome window manager

I have Ubuntu 12.10 virtual machine running in QEMU-KVM. Copy/paste between host and vm works fine when using Unity as window manager but not while using Awesome. What is the difference between ...
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88 views

Virtual machines using wrong IP addresses

I have a host computer (A), running three virtual machines: X,Y and Z. They're under a NAT layer, in which the Host A is the gateway (192.168.0.1/16), and the VM's are respectively 192.168.0.2 (X), ...
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866 views

How can I get hard drive to work for QEMU-virtualized Windows Home Server 2011?

I have configured a Windows Home Server 2011 guest with virt-install and virsh, but the windows installer can't find any hard drives. Nor can it load any virtio drivers for it. This is my first ...
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127 views

Virtual machine host software

I would like to create a virtual machine running Linux and a couple of network services. This virtual machine should be on a USB stick and able to run on both Windows and Linux hosts, with as little ...
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1k views

vagrant fails to create box with libvirt

I am trying to setup a box with vagrant and libvirt with the following Vagrantfile Vagrant.configure("2") do |config| config.vm.define :test_vm do |test_vm| test_vm.vm.box = "test" ...
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Issue with creating an Windows 2008 Virtualized image with qEmu [closed]

I'm trying to create a qemu image of a 64bit Windows 2008 Server install. It will be used on Openstack as an instance. The Virtualization environment [of qemu] is being run from a VMware virtual ...
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403 views

Boot OpenSuSE installation in QEmu-KVM using QEmu-KVM as the bootloader

I am trying to pass kernel parameters to a virtual OpenSuSE installation without typing them on a boot prompt, using the ability of KVM to load the kernel directly. First, I mount the installation ...
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2k views

Boot an existing GNU/Linux installation from a real HDD in Qemu-Windows

I'm now running windows 8 and I installed qemu-windows 1.3.1. I have two hard disks. When I try to boot existing Arch GNU/Linux from second disk using the command: qemu-system-x86-64w -hda ...
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Use a real Windows hard-drive to boot off Qemu?

I'm looking for a Windows equivalent of Unixish: qemu -hda /dev/sda How does the Windows version of it look like, assuming the device I'd like to boot is under the drive letter E:? qemu -hda E: ...
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181 views

Qemu does not shutdown with vnc enabled on OS X

I am trying to run Qemu on my Mac and I have some difficulties. I am using OS X 10.8.2 and installed Qemu 1.2.50 via their repository. Update: Just upgraded to Qemu 1.3.50 and the problem is still ...
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63 views

error in qemu monitor wavcapture with virsh

I have VM running on qemu-kvm. I am managing it with libvirt and command line tool virsh. I want to record the audio output of the VM. Here is what I am trying - virsh qemu-monitor-command -hmp ...
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348 views

How do I install Windows 8 (from an ISO) using Q (qemu)?

I have downloaded an ISO image of Windows 8 from Microsoft Dreamspark and I am on a 27" iMac without administrative privileges. I would like to install and run Windows. The only way I found to do so ...
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970 views

DosBox Booting From HDD Image, FreeDOS Image created with qemu-img.

I'm having trouble booting a HDD image with DosBox. I've only gotten either read errors, or boot failures. The HDD image is a verified working FreeDOS installation, created with qemu-img. The image ...
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963 views

Write qemu booting virtual machine output to a file

I've been trying out qemu to play around with some VMs. It's working well but I keep wanting to be able to view the text (linux boot process) that quickly scrolls by in the qemu window on startup of ...
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1k views

KVM and libvirt: How to configure a new disc device to an existing VM?

I've got an Ubuntu 9.04 server running two VM's. In /etc/libvirt/qemu/machine1.xml two disk devices are defined like this: <devices> <emulator>/usr/bin/kvm</emulator> <disk ...
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680 views

Networked Parallel Port in Linux / KVM / QEMU

What I want to use is the "-parallel" tcp or udp option from KVM / QEMU, but I don't seem to find any server for this client. I don't serve a printer but a hardware dongle. I checked ser2net, which ...
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1k views

Where can one download PartEdit a partition listing tool for Microsoft OSes?

There are many references to this tool, which seems to be an advanced fdisk-like utility for microsoft OSes, available from Microsoft. But searching support.microsoft.com provides now download! ...
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186 views

debian installation without internet connection

I want to install some Debian distributions (Grip, Crush, Lenny...) for arm / armel architectures. www.emdebian.org/ I'm referring to this guide: http://www.aurel32.net/info/debian_arm_qemu.PHP ...
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qemu + centos 7 - cpu tuning in not available on this host

I am running OpenNebula on Centos 7 hosts - one host is fully operating the other two says: error: unsupported configuration: CPU tuning is not available on this host I've got through some git code ...
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How to share the files between Virtual Machine qemu-kvm and host machine?

How to share the files between Virtual Machine qemu-kvm(windos7 installed) and host machine(Centos7 installed)? Thanks.