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

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Does Chicken VNC support copy-pasting plain text from remote machine to local machine?

I'm trying to get some plain text copied from the remote to the local machine over VNC. This sounds like a basic requirement to me, but I can't find a way to make this work in Chicken VNC. There don't ...
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3k views

How to enable network with a raspberry pi emulated on qemu?

I'm trying to emulate a raspberry pi on my ubuntu 13.04. I installed qemu and it works well except for the network. I followed this procedure. On the virtual machine, the file /etc/network/interface ...
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2k views

How do I create a wifi network bridge with qemu on OS X?

I grabbed a small FreeBSD live CD and QEMU, and I'm trying to bridge my Mac OS X 10.8 wifi connection so that the guest OS is available on my LAN. However, the guest OS never gets a DHCP lease. This ...
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78 views

Will QEMU emulate processors newer than the one in which it's running?

If I compile QEMU in Linux running on a 486 processor, will it be able to emulate the Pentium processor features on it (like MSR)? And, if it doesn't, is there any way to emulate the Pentium features ...
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Swapping floppies in FreeDOS+Qemu

I am trying to replace a floppy inside a qemu machin running freedos 1.1. I remove the old floppy and inserts the new using change floppy0. Now when I dir A: nothing has changed. If I try to run a ...
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Unknown OS hostname and product in virt-manager

I'm using libvirt on a Fedora 19 host, running various Linux guests with QEMU and KVM hypervisors. Using the virt-manager GUI, when I look at the guest Overview screen, in the Operating System ...
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450 views

QEMU and the Raspberry Pi

[I re-titled this for posterity, since it does turn out to be somewhat raspberry-pi centric] I'd like to try QEMU as an alternative to cross-compiling. I'm using v. 1.0.1 on fedora 17 [later: same ...
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119 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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Can QEMU be used on Mac OS X to emulate a one-core CPU (preferably only the CPU)?

Can QEMU do this kind of emulation? On Macs there's no an easy way to set CPU affinity, so this could an interesting workaround for the older programs that don't work well in multi-core environments.
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909 views

64 bit guest on a 32 bit host

I've been searching around here but didn't found a proper answer. I have problems to start a 64bit (ubuntu-amd64) guest system on a 32bit ubuntu host, using qemu. I've made sure that the kvm kernel ...
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3k views

QEmu to share a directory with the host

My problem is that networking devices in my device tree are not very stable so I thought the best way to share a folder between qemu and the host system is mount the same img without cache on both ...
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2k views

qemu kvm - can't start VMs after installing xen hypervisor

I had been using QEMU KVM for long time and have few VMs. Recently I installed XEN Hypervisor following this instructions but decided to apt-get remove xen-hypervisor-4.2-amd64 Problem is that now, ...
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61 views

How do I define a new virtual machine in QEMU?

I have installed QEMU for fedora via: yum install qemu Now how do I start it ? I mean how do I define a new virtual machine, like I do in VMware? Also I don't see any icon made for QEMU.
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pulseaudio, in a KVM virtual machine (as root) and your desktop (not root) playing audio at the same time?

How do you get pulseaudio to play sound in a KVM virtual machine (running as root) and your desktop apps (not running as root) at the same time? It seems that by default, it will only play sound for ...
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896 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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599 views

ARM Compiled QEMU - “standard VGA not available”

I followed this guide to compile QEMU so that I could run a Raspberry Pi Archlinux image in it - which I learned how to do in this guide. I'm trying to run x-server on the virtualized Archlinux ...
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214 views

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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3k views

Error while creating a VM using KVM

I am trying to set up a VM on my Ubuntu 13.04 Desktop and it's giving me error when I try to start the VM. The error states: virsh # start vm1 error: Failed to start domain vm1 error: internal error ...
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318 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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3k views

How do I bridge a connection from Wi-Fi to TAP on Mac OS X? (for the emulator QEMU)

I'm trying to setup a bridge between my Wi-Fi connection and an emulator (QEMU). I need a virtual machine to be on the same LAN as the host, with its own IP address. QEMU requires using a TAP ...
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379 views

Is it safe to uninstall qemu and libvirt?

Fedora installs both by default. I didn't found what are them exactly for, but yum autoremove selects them for autoremoval. Is it safe, for a normal user (I mostly use this machine for documents and ...
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303 views

How can I get qemu's Ctrl+Alt keys working in -curses mode?

So here's the situation; I currently have qemu installed on an OpenBSD 5.3 snapshot. This is a console setup so I have to either run with -curses or -nographic. The problem here is that I'm having ...
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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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-kernel option like in QEMU for BOCHS

I am working on creating my own kernel using C/Asm. I have always used QEMU as my emulator mainly because I can specify -kernel and it boots the kernel directly without a boot loader. I wish to switch ...
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906 views

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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357 views

What VNC clients support qemu's audio extension?

I've read that QEMU implements an extension for providing audio over a VNC connection Unfortunately despite doing a lot of web searches and even installing some different VNC clients and ...
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1answer
506 views

Network setup for web development on KVM guest with host using wifi

I've a laptop running Linux connected to a LAN using wifi. I've used virt-manager to create a KVM/QEMU VM and installed Ubuntu on that. As expected, it can connect to the Internet to download updates, ...
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450 views

QEMU: How to find bottleneck in my virtual machine?

I am running an ubuntu virtual-machine on a 12.04 ubuntu server. Unfortunately the machine is extremly slow (just htop consumes 15%), even though having 8 cores etc. Do you know a way to find the ...
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3answers
2k views

Cannot open SDL support on Qemu

When I compile qemu for arm platform, I configure as follows: ./configure --cross-prefix=arm-linux-gnueabi- --target-list=arm-softmmu --enable-kvm --enable-sdl --static But get errors below: ...
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162 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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856 views

How to set up virtual windows so it shares graphic card via IOMMU?

I'd like to continue using Linux as my desktop system. But from time to time I'd like to do some gaming. I know that I can use Wine and PlayOnLinux stuff, but it doesn't always work. I also know, that ...
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644 views

Running FreedomBox in Qemu

I wanna run the latest FreedomBox image on my Ubuntu laptop. The FreedomBox image is for DreamPlug, a 1.2 GHz Marvell Kirkwood 88F6281 SoC (ARM9E), and my Ubuntu is v12.10 (3.5.0-17-generic i686). ...
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402 views

Problems switching to QEMU control panel with -nographics

It seems that the terminal does not recognise CTRL+ALT+2 when typed, so I don't know how to quit the QEMU emulation, or switch to the QEMU control panel. I am running Mac OSX Lion, and I type $ ...
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327 views

Reducing hard disk access of kvm

I have set up a kvm/qemu virtual machine on my home server (Ubuntu Server 12.04). My host system is installed on a small SSD but the image for the vm (virtual disk file) is saved on a classic HDD. ...
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61 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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144 views

Running os x app on linux using qemu

I would like to run a small app (TrunkDecrypt) on my Linux box. Unfortunately the app is compiled for Mac OS X, but I am only running linux. I have read somewhere that qemu supports executing code ...
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1k views

How do I get AVX support in QEMU?

I want to play with the new AVX instructions. I saw that QEMU might have support, so I built it from Git (yesterday). I set the CPU to SandyBridge and I booted Tiny Core Linux. TCL has kernel 3.0 and ...
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How do I convert an .img file to vhd?

I have an image file (linux based image) and want to convert it to VHD so that it can be used to create hyper-V VMs. I used "qemu-img convert" to convert raw to vpc format, but vpc doesnt work for ...
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Does QEMU's performance (still) lag VirtualBox's and is there a way to improve it without the hardware support+kvm kernel module?

I've noticed several articles that have claimed that QEMU is slower than VirtualBox (without hardware assistance) but several are years old, and the newest seemed to be from last year. Is it true ...
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994 views

QEMU within VirtualBox and bridged connections all the way down

I'm trying to get an ARM QEMU system out on my LAN. I tried running QEMU directly from Windows (Windows 7 x64), with success except I could not get a TAP adapter to bridge to my wireless connection. ...
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3answers
2k views

Is there any way to run 64bit Virtual Machine on 64bit processor without hardware virtualization (amd-v, vt-x)?

We have a 64bit virtual machine (CentOS) that we'd like to run on 64bit host-machine (may be running under any OS), but that host-machine doesn't support hardware virtualization, which, you know, ...
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2k views

Compiling QEMU on Mac OS X Lion

I've been having trouble compiling a working copy of QEMU on Lion. When I try installing through homebrew, I get a screen like this when I attempt to run QEMU: The blank screen just sits there ...
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569 views

Virtualized guest vs host CPU usage

I am using qemu with kvm as my hypervisor. I am running a gentoo guest on an ubuntu host. The guest is being given a single processor. When I run a compute intensive job (say empty-loop) I get almost ...
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645 views

What could cause a video to play poorly in VLC?

I am playing a high quality (1080p) video using VLC inside a qemu-kvm virtual machine. The OS on my virtual machine is gentoo and the host OS is Ubuntu. The video experience is very jerky : the video ...
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336 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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1k views

qemu-i386 on ARM processor giving ld-linux.so.2 error

I am trying to install Ventrilo server on my SheevaPlug, running Debian ARMEL. Since Ventrilo server is an x86 program, I would like to try and use qemu-i386 to run the server on my ARM processor. ...
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5k views

How do I use the “-cpu” option in Qemu?

Using QEMU 0.14.1 under Ubuntu 11.10 with kernel 3.0.0-17-generic, if I run qemu -cpu ? I get: $ qemu -cpu ? x86 [n270] x86 [athlon] x86 [pentium3] x86 [pentium2] x86 ...
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898 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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qemu: Set or force higher screen resolution than 640x480

I set up a virtual machine using qemu-system-arm (ARM emulation) running Debian squeeze. Now I have the problem that in the "Monitors" preferences, I can only select 640x480 as resolution. Tried all ...
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1k views

linux 'top' not showing all processes

I am running linux top command to see processes running inside qemu VM. Sometimes, a process does not appear in them, but if I run, ps -eo psr,pcpu,comm | grep myprocessname then the process is ...