QEMU (short for "Quick EMUlator") is a free and open-source hosted hypervisor that performs hardware virtualization.

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No network interface for the lan9118 emulated on QEMU 1.4.0 overo machine

Im using QEMU 1.4.0 Ubuntu 13.04 distribution. Im trying to make the virtrual machine part of the host network so Im ussing this command: sudo qemu-system-arm -M overo -m 1024 -sd ./test.img -clock ...
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902 views

Qemu doesn't boot kernel after “Uncompressing Linux… done, booting the kernel. ”

I've compiled qemu for s5pc110 (it's from http://gitorious.org/samsung-linux-platform/qemu, somebody had added support for s5pc110), version 0.12. But when I load the kernel: qemu-system-arm -M ...
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1answer
2k views

How to convert Windows 7 partitions to qcow2?

I know I can use qemu-img tool to convert a raw partition into a image file. But Windows 7 has two partitions. I tried: qemu-img convert /dev/sda1 /dev/sda2 win7.qcow2 But the generated file does ...
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2answers
2k views

Using mplayer inside kvm/qemu

Is it possible to use mplayer inside kvm/qemu configuration? What video driver should I use? The only driver that worked was sdl and it was super slow. EDIT: I just found out that VirtualBox works ...
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2answers
1k views

start qemu by giving it a path to a linux root

Good evening, I installed ArchLinux on a USB stick, and I would like to boot it in qemu. Unfortunately, most examples I found boot an image (iso..). The stick is definitely bootable as if I restart ...
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2answers
6k views

Installing qemu-img on ubuntu 11.04

I am developing a linux kernel and I am trying to to debug it in QEMU. I want to be able to run it in QEMU but it stops because I do not have a virtual hard drive to boot it(using the -hda command). I ...
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2answers
3k views

Running Linux kernel in Virtualbox

I just built a Linux kernel on Ubuntu and now I want to make it run on VirtualBox. I wanted it to be in an img format. I created a hard drive image by doing the commands: $ qemu-img create disk.img ...
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134 views

grep contents of files based on a list of files

Running CentOS 6.5, qemu-kvm. I have a script which builds a list of running VM's. I want to pull information from those .xml files of only the VM's that are running. cat /dev/null > ...
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2answers
191 views

how to access the running VMs?

A colleague of a friend of mine established a voluntary project for a gaming union. But the problem now is, that the person is unavailable and I don´t know how I should access the running VMs. I spent ...
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1answer
2k views

Qemu Arm how to passthrough a PCI Card

I'm trying to access a PCI wifi adapter on a Qemu, simulating vexpress-a9 board. I'm following is this tutorial which shares a passthrough PCI card of the host machine to a guest machine running on ...
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2answers
128 views

Making /dev/net/tun available to qemu?

I have created a tap device (tap0) which I would like to provide as a network interface to qemu. I created the device with the following command and attached it to a network bridge I set up: tunctl ...
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1answer
91 views

qemu command line management

I'm interested in qemu, specifically the kvm feature in Linux which is operated through the command line. I see there are a ton of features available for gnome-boxes and libvirt specifically. My ...
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1answer
227 views

Qemu and AARCH64

I'm trying to setup an ARM64 machine using QEMU. I ended up fetching the kernel and img file from here and here. I reached the above links from here. When I try to run the OS as :- qemu-aarch64 -m ...
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1answer
40 views

Setting up QEMU and MIPSEL : networking trouble

I have a MIPSEL machine running on QEMU. In order to enable networking inside my qemu MIPSEL machine, I use a bridge virbr0. First, I create the interface tap0 and bring it up. I do it as follows :- ...
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1answer
620 views

Why is qemu-kvm needed in Debian Wheezy when running qemu with “-enable-kvm” option?

I have a HP Compaq 8200 PC with Intel i5 CPU. I have enabled VT-x in BIOS: ..and CPU supports VT-x as it has vmx flag present in /proc/cpuinfo. I have loaded the kvm LKM: root@VM-host:~# modprobe ...
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1answer
1k views

Using of qemu-system-x86_64 with key -enable-kvm on VirtualBox

I have windows 7 as host. I launch virtualbox with ununtu 14.04 on my Windows 7. I try to launch debian inside Ubuntu: qemu-system-x86_64 -enable-kvm -hda disk.img -boot c -m 256 -localtime. Another ...
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2answers
2k views

QEMU can emulate SD card from Linux but not from OSX

Short version I am trying to emulate a RaspberryPi directly from the SD card (using the same commands as presented here from MacOSX. I am using QEMU. However, the partitions on my SD card are not ...
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1answer
359 views

How much success can I expect with Qemu On PowerPC Linux?

I'm on Ubuntu 12.04 for PowerPC and I installed Qemu just for kicks, having experience using it in the past to build an iso for an arm tablet, and upon doing a search I found this installed on my ...
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2answers
1k views

fdisk hangs on “Syncing disk” when resizing a raw QEMU image

I'm using fdisk to resize the partitions on a raw QEMU image. When I write the new partition table, it hangs at "Syncing disks." Note that I'm running fdisk as non-root since I don't need root to ...
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1answer
588 views

How do I get QEMU to open without a BadWindow error after ssh'ing with X11 forwarding?

After ssh'ing to a machine (with -X) I run qemu and get the following: X Error of failed request: BadWindow (invalid Window parameter) Major opcode of failed request: 25 (X_SendEvent) Resource ...
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1answer
49 views

How to run a gui client os in a virtual machine on non gui linux host?

Is it possible to run a windows gui client in a virtual machine hosted in a non gui linux? How to set this up? and how to connect to such a machine?
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1answer
44 views

Encrypt partition and allow qemu to use it as the guest drive

I am trying to encrypt a 25gb partition on my SSD with cryptsetup in such a way that will allow QEMU-KVM to use it as the guests drive. I have tried luksformatting the drive: cryptsetup luksFormat ...
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1answer
78 views

Virtfs (Plan 9) vs NFS as tool for share folder for virtual machine

I have QEMU virtual machine. Linux host and linux guest. I want stable and fast solution with minimal performance cost. I'm considering two technologies for shared folders (between guest and host): ...
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1answer
78 views

Virtualisation: follow symbolic links in VirtFS (9p) share

I have folder on host machine which have symlinks to another device. Like this $ ls -all ~/folder_to_share ... file1 file2 linked_dir -> /mnt/bdrive/real_dir/ ... I setup QEMU virtual machine ...
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1answer
32 views

Disk space in windows not representing actual qcow2 image size

The disk space shown in Windows running in KVM does not represent the actual disk space available for the qcow2 disk image. The Windows Management Console shows there is 100 GB for the drive, but ...
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3answers
255 views

I want to try out AIX in my pc, can i emulate it or get it to run for a very affordable price?

sorry, i'm to new to AIX. i love unix and i try different kinds. so can it be emulated with QEMU or can i buy an old IBM processor to use it? or some other easy way? thanks
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1answer
64 views

How to let Qemu autoselect a listening port for Spice?

I'm switching some VMs from VNC display type to SPICE. VNC display type offers a very handy to= parameter allowing QEMU to automatically use the first free port from a defined range: -display ...
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1answer
98 views

How do I detach, then re-attach to a kvm spice session?

I have started a kvm session with typical qxl and spice options. The vm is running in the background via nohup. I then started the spice client on the same host, using it to log in to the vm's gnome ...
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1answer
72 views

libvirtd and filtered ports

I am new to virt-manager. After having configured a virtual network (new interface virbr0) with 2 VMs that should be able to communicate, I discovered that most ports are filtered. For example, the ...
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1answer
340 views

troubles mounting qcow2 image of QEMU

Have been trying to mount QEMU image with qcow2 type on Fedora 20 host, according to this article http://docs.openstack.org/image-guide/content/ch_modifying_images.html It appears that 'vgscan' ...
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1answer
3k views

virt-manager PCI passthrough gives error “No IOMMU Found” even w/ Intel IOMMU enabled

I am trying to set up PCI passthrough in virt-manager to grant my Debian Wheezy guest VM access to my laptop's Intel Centrino N wireless card. The Debian default kernel has Intel IOMMU enabled, and I ...
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1answer
232 views

How to setup permission for virtfs in system libvirtd

I have troubles setting up the permissions for virtfs. I need to share a folder with several VMs in a way that user (same username, uid and gid on guests and host) can access it (have full ...
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1answer
699 views

kvm usb modem passthrough

I'm trying to set up a USB modem passthrough in kvm virt-manager. The host is Fedora 20. The guest is Centos 6 $ ifconfig wlp0s29u1u6: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 ether ...
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1answer
122 views

How to reach only an application in QEMU emulation without X?

I run an OpenBSD guest on an OpenBSD host (Desktop) with QEMU. Because I want to run a webbrowser in a separated environment. I can reach the QEMU machine via ssh -X so I can see the webbrowser. But ...
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1answer
217 views

Using qemu to boot OpenSUSE (or any other OS) with custom kernel

I want to run OpenSUSE as guest with a custom kernel image which is on my host machine. I'm trying: $ qemu-system-x86_64 -hda opensuse.img -m 512 -kernel \ ...
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1answer
388 views

What are the right settings for Ubuntu Touch under qemu?

As you can see here, Canonical is releasing the images for Ubuntu touch, the problem is that apparently those are snapshots from a complete installation, there is no installer here and no vmlinuz + ...
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1answer
195 views

darkstat shown blocked traffic

I've installed Darkstat on a Qemu VM which is connected to a bridge interface on top of main server's interface ( eth0 ) In Darkstat report I can see many hosts in the same IP range of specified VMs ...
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1answer
1k views

Adding a populated existing disk device to a QEMU raw image

I have a raw QEMU image (vda.raw), and I would like to resize it and add an existing partition, using data I have in a file that contains a raw ext3 file system populated with data (vdb.raw). The two ...
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65 views

Easiest *non-networking* method of communication between Linux host and Windows guest [closed]

I'm writing application software for Ubuntu which needs to communicate with another application running in a Windows Virtual Machine via Qemu on the same machine. I have full control over the source ...
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76 views

Running QEMU inside XEN virtual machine

Is it possible to run QEMU inside XEN virtual machine? I tried to enable the XEN nested virtualization for with following options to virtual machine configuration file in /etc/xen/vm1.cfg: hap=1 ...
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29 views

Virt-manager Permission Denied when accessing NFS pool

I'm currently having this error when I'm trying to install a Virtual Machine on my NFS share. i've added my NFS share (coming from FreeNAS) to a Storage Pool on the virt-manager Another issue is ...
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43 views

/dev/kvm is missing from system supporting kvm-virtualization

I'm trying to enable kvm-virtualization for Android virtual devices. In order to do so, I followed this guide and did the following: Checked, if kvm-virtualization is available: user $ grep --color ...
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236 views

Why can't the kernel run init?

I've downloaded the Raspbian image on this page. I'm trying to compile a kernel that can be used to boot the image within qemu. I downloaded the Linux kernel source from kernel.org and ran: make ...
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12 views

Golden image updates in qemu

Consider that there are 100 windows virtual machines coming from a single base image and each vm is added to domain along with minor other machine specific settings which can be done by a script. ...
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18 views

ISC DHCP Server - Qemu system

I've been trying to get dhcp address by an ISC Server. I have one DHCP Server and one qemu server with multiple image tiny core. Hopefully this ascii drawing illustrates the topology: Over the qemu ...
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1answer
377 views

Libvirt: how to pass qemu command line args?

I have the current libvirt 1.2.20 i want to pass to my machine create with virt-manager some qemu flags. I edited the file and add </devices> <qemu:commandline> <qemu:arg ...
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1answer
461 views

not syncing: Attempted to kill init! in custom kernel for qemu

I have been working on building a linux kernel for qemu. I have been following the tutorial http://xecdesign.com/compiling-a-kernel/ As of now i have been able to boot the kernel until start of init ...
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90 views

How to run Windows with GPU virtualization?

A year ago I switched to Ubuntu for my primary OS, which has worked out just fine. Every now and then I want to play computer games and while using Wine often works, I can't get all of the games that ...
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65 views

Gnome-boxes not able to see virtual machines after sleep

I am having a bit of trouble to solve this issue. I am using gnome-boxes to run my windows boxes for my school project purpose. When I boot the system, everything works just fine When I type : ...
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284 views

qcow2 and qemu-system-arm

I just tried booting up a Debian ARMel build using QEMU on my Ubuntu machine as follows :- qemu-system-arm -M versatilepb -kernel vmlinuz-3.2.0-4-versatile -initrd initrd.img-3.2.0-4-versatile -hda ...