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

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iPod Touch 5G won't recognize in qemu Windows 7 VM

I have an iPod Touch 5G, and a Windows 7 VM. I am trying to pass through the iPod Touch to the VM so Windows can recognize it, but I am getting the following error in the qemu monitor. (qemu) ...
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5 views

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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6 views

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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1answer
20 views

Using QEMU to install DOS on the second partition of a real HDD - Can it be done?

I've recently been trying to put DOS on an old HDD I've got lying around. Trouble is, it's already got Windows 98 on it. I resized the 98 partition down and made another for DOS. This is where I hit ...
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30 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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10 views

How to start VM using virsh tool from webpage?

I have a php webpage, on client side it shows a button to start a virtual machine.From php we can execute commands also and taking this into consideration I am using virsh command to start the VM but ...
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1answer
85 views

How to build a portable windows virtual machine without admin permissions and with high performance?

I need to build a portable virtual machine that could be used on user restricted PCs that need admin permissions. I've heard about QEMU. But the problem is that it is very very slow when running. Is ...
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7 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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19 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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104 views

Unable to configure qemu on Ubuntu 14.04

I'm trying to configure QEMU on Ubuntu 14.04 (x64): $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.1 LTS Release: 14.04 Codename: trusty ...
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48 views

Why is [ssh,scp,rsync,etc] so slow, from a VM to another local machine on my gigabit local network?

I have a VM A running the latest archlinux with QEMU, KVM and a Virtio network card. It is a buildbot and it needs to drop the result on another machine B on the local network. The VM is started with ...
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265 views

How to mount KVM virtual machine image to VirtualBox?

I have received a .img file of a server which is a Virtual Machine running in a KVM environment. The Virtual Machine has Ubuntu installed. I would now like to take this .img file and "emulate" the ...
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23 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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52 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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117 views

qemu: How to use resolutions > 1024x768 in Windows 8(.1)?

In previous Windows versions, I was able to get higher resolutions in qemu/qemu-kvm by passing the -vga std or -vga vmware command line parameters. However, when I try the same for Windows 8 (and ...
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56 views

Qemu user mode networking doesn't work

I try to use network in guest system. I installed an OS in a virtual machine, but I did not get the network configured. When I try to ping, for instance google.com I get the IP address for the domain, ...
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393 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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50 views

QEMU guest and Linux host networking configuration

+-----------------------+ +---------------------+ | bro - Host - Linux | | Guest - QEMU- Linux | | +------+ +------+ | | eth0 | | | tap0 |----| eth0 | | ...
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68 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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26 views

QEMU outside gateway

I've created two instances of CentOS6.5 (KVM) using Virtual Manager and I'm able to ping google.com, yahoo.com,etc... However the ip addresses for the instances are 192.168.0.* and the machine that ...
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42 views

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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72 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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237 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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59 views

Improve the screen resolution in a virtual machine

I installed Windows Server 2012 Trial in virt-manager/qemu-kvm. When I look at the display settings, the screen resolution is limited to 1024x768 and there is only one Generic Non-Pnp Monitor in the ...
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36 views

KVM Arch install - no network

I often use KVM to try out various Linux distros. All I have tried so far get an automatic network, Red Hat and Debian have all connected out of the box, no problem. Makes installations very easy. ...
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79 views

How to forward usb port to guest OS using qemu

I have lots of usb devices and I would like to connect them to guest os. Currently I'm forwarding one device at a time. $ qemu-system-x86_64 ... -usbdevice host:xxxx:yyyy I would like to give ...
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39 views

Qemu and KVM error in my system

Whenever I execute virsh version or qemu version I got this error qemu: symbol lookup error: qemu: undefined symbol: rbd_aio_discard I am unable to create the virtual machine in virtual machine ...
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1k views

Virtualize an existing windows 8.1 installation on arch

I have the following setup: Intel i5 4570s SSD for os sda1: EFI boot partition sda2: ext4 with arch installed sda3: swap sda4: microsoft reserved sda5: ntfs with windows 8.1 installed HDD for data ...
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433 views

nova-compute libvirt x86_64 emulator Error

I was trying to install openstackin Ubuntu12.04 server. I find that Nova-compute is not getting started and the error is the below. I followed some of the suggestions in various forums, but nothing ...
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9 views

Q(emu) on OS X, has a MV that I cannot start nor delete

I just installed Q on my MAC machine, and I tried to install Linux Mint 64 bit. So after a few trys I set the "platform" to "x86-64 PC", then ran it. The program immidiately said you can't open the ...
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24 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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121 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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101 views

How to bootstrap a MIPS NetBSD iso in qemu?

I'm trying to bootstrap a NetBSD 4.0 iso in qemu, but am not having much luck. My host computer is running OS X, and I successfully installed qemu with homebrew, but have been unable to bootstrap the ...
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38 views

Boot Directory as FAT32 with Qemu

I have a directory "root" with a subdirectory structure corresponding to an ARM OS suitable for running on the Raspberry Pi. This directory structure is implemented in NTFS. I could (theoretically) ...
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83 views

QEMU not booting solaris 10 x86 with -icount 1

I have managed to install solaris onto a hardrive (.img) but qemu is not able to boot it when i use the -icount 1 command line option. It throws an error: "qemu: Fatal: Raised an interrupt when not in ...
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11 views

QEMU CD in Linux

I am using QEMU and passed an .iso image to it (via -cdrom), but I am unsure what the /dev/someThing for it is (under guest Linux). I tried /dev/cdrom which did not exist... What is the device name ...
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178 views

KVM Graphical Guest on Headless Server

I have a headless server running Ubuntu 12.04 LTS. I was able to install KVM and its helper packages with no problem. However, now, I am trying to get a desktop KVM guest installed. I've run into ...
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49 views

QEMU: weird display output when install debian on mac osx

I got weird display when I tried to install debian on osx 10.9.1 qemu-system-i386 -hda debian.img -cdrom ~/Downloads/debian-testing-i386-netinst.iso -boot d QEMU is the newest version brewed from ...
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180 views

How to start QEMU on Windows with monitor enabled?

I've downloaded the latest 64-bit version of QEMU for Windows and it installed fine. However, I now have problems switching to Monitor mode when trying my code. The documentation says Ctrl-Alt-[1, 2, ...
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149 views

Trouble installing Grub2 on virtual disk

I'm trying to create a virtual disk with grub2 on it. I'm doing this because I'm going to be writing a multi-boot compliant loader. I want to test this on a VM, so I need a virtual disk with grub2 for ...
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2k views

Installing Windows 8.1 64 on Qemu Fails - no disk can be found due to Virtio driver issues

I'm unable to install Windows 8.1 x64 with the following steps on a qemu virtual machine: qemu-img create -f qcow2 Windows8.img 20G qemu-system-x86_64 -machine pc,accel=kvm:tcg -cpu host -m 2048 ...
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713 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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63 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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570 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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368 views

“ACPI\QEMU0001” unknown ACPI device after Windows 2008 install with libvirt

After installing Windows 2008 in a libvirt virtual environment (command below for reference), I'm stuck with an "Unknown device" in Device Manager. The Hardware Ids show ACPI\QEMU0001. I tried using ...
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130 views

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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387 views

Setting libvirt/qemu's keymap for VNC

I'm setting up a KVM system on Ubuntu 13.10 with qemu/libvirt, and would like to change the default (or at least per-VM) keymap that VNC uses. The keymap I'm interested in is "be", so in qemu terms ...
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62 views

How can I use a directory in the host system (Windows) as the file system root (or even simply a shared folder) for Linux in QEMU?

I have heard that Linux does goofy things with file systems, and therefore uses different file systems from Windows, hence the virtual disk file. (More on that below.) However, I am accustomed to the ...
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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 ...