Qemu is a cross-platform processor Emulator.

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Qemu passthrough not working

My vga passthrough is not working. I use a Intel HD 2500 for my Ubuntu host and a Nvidia GTX 770 for my guest System if it would work. I think everithing works fine but not starting my virtual machine ...
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30 views

QEMU Window size independent of resolution [closed]

The resolution used in the virtual machine seems to be independent of the size of the QEMU window. So when I change the QEMU window size I get scaled and distorted window content. Programs like ...
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14 views

OpenVZ - Ubuntu 14 trying to install Windows [duplicate]

I'm following these steps http://freevps.us/thread-2789.html In second step, when I run this command: sudo apt-get install libICE.so.6 libImlib.so.1 libORBit-2.so.0 libSM.so.6 libX11.so.6 ...
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0answers
99 views

Raspberry Pi / ARM Emulation [closed]

I'd like to be able to boot an image of Raspbian Wheezy, for example. I've seen people using QEMU but they have to download Linux source and compile it or accept a pre-compiled one from an untrusted ...
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40 views

Virtual machine won't boot without media. /dev/sr0: no medium found

Ubunto server 14.04, and I created a VM with the OS of win serv 12. But I can't start the VM without the ISO being in the cd-rom. this is my error: error starting domains: failed to open file ...
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65 views

Critical random slowdown issue using KVM/QEMU

I'm having a critical issue with KVM/QEMU which is severely impacting one of my projects and I don't know where to put my hands. I've set up a brand new physical server configured with a 2 x Intel ...
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115 views

Permission denied while invoking libvirt with -no-kvm-irqchip argument

Trying to start a VM with -no-kvm-irqchip as argument. in the vm.xml, I have specified emulator as "/usr/bin/qemu-kvm-irq" which is passing -no-kvm-irqchip as argument. > ...
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68 views

How to export qcow2 KVM image?

I have set up a new QEMU virtual machine through KVM on a Ubuntu 14.10 linux installation. Everything is working smoothly. The problem is when I try to export the qcow2 vm image to another PC, to ...
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1answer
183 views

QEMU Connect physical disk [closed]

I made a windows virtual machine on my ubuntu pc using the following script (found online). #!/bin/bash configfile=/etc/vfio-pci1.cfg vfiobind() { dev="$1" vendor=$(cat ...
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19 views

How to configure VM to mount filesystem share as writable

Here is my situation. I have a host computer running ubuntu server 14.04 It mounts a dev from fstab: /dev/sdb2 /media ext4 rw,nosuid,nodev 0 0 Permissions on the mounted folder are owner=root, ...
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1answer
114 views

qemu: “not a bootable disk”

So I followed exactly the instructions on how to run QEMU-KVM with VMware's disk images v6 directly: kvm -drive file=zimbra-000001.vmdk,boot=on -net nic,macaddr=00:0c:29:c3:93:b9 -net tap -uuid ...
3
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1answer
493 views

How to correctly install and use QEMU-KVM on Ubuntu 14.04?

In general, I prefer to install Linux software packages (not already installed by the default Ubuntu installer) via the distro-specific mechanism provided by that distro. In my case, I am using Ubuntu ...
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0answers
157 views

Mount qcow2 image using qemu-nbd within a container

I'm trying to get an OpenStack Nova compute node running within a container to boot a server in a nested container. Everything works fine until I ask Nova in the controller to boot the server. During ...
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2answers
302 views

Why qemu-system-x86 takes 100% of my CPU?

I've changed my old laptop with a new one but I don't understand why using on both virt-manager the qemu-system-x86 on new one takes 100% of CPU when run a vm, while on old one not. The command: ...
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1answer
829 views

QEMU/KVM/Virt-Manager: Passthrough of USB Webcam to Windows 7 Enterprise creates “NEC USB HUB”

I am trying to passthrough my USB Webcam into my Windows 7 Enterprise x86-64 QEMU/KVM guest, which is managed by virt-manager. First I lookup the bus/device ID: $ lsusb Bus 002 Device 008: ID ...
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1answer
484 views

How to change qemu default machine?

I use Kubuntu 14.04 (x86_64 3.13.0-43-generic #72-Ubuntu) with qemu-kvm. $ kvm --version QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.9) How could I change the "default" machine (now it ...
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66 views

qemu: how to select from which hdd to boot?

I want to connect 2 hdds to my qemu virtual machine. One of them is actually a file connected via virtio, and I want it to be the bootable drive. The other is a partition that I want to pass through; ...
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41 views

Make libvirt/qemu VNC take an interface name instead of a fixed IP address

I rely on VNC to communicate to my VMs from an external system, so in the XML description file I have something like this: <graphics type='vnc' port='-1' autoport='yes' listen='10.1.1.199' ...
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1answer
58 views

Where is the list of supported device emulations in KVM?

I am configuring a guest VM under libvirt using virsh edit. The source of the kernel running in the VM is an embedded security device where I have no control over what drivers it comes with. In ...
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89 views

How to install qemu-kvm from source

I previously installed kvm via apt-get. Then I install qemu from source via following steps: wget http://wiki.qemu.org/download/qemu-2.1.91.tar.bz2 cd qemu-2.1.91 ./configure make && make ...
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1answer
447 views

Sharing folder with VM through libvirt, 9p, permission denied

An Ubuntu Server 14.04 Host hosts an Ubuntu Server 14.04 guest via libvirt/qemu-kvm. The system runs fine, but - as guest - I have issues writing to a shared folder (<filesystem>) that drive me ...
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49 views

PCI-X passthrough noob?

I'm a total noob at qemu but not linux. I use SeLinux at my work and I won't to make the switch to Ubuntu 14.04 from Windows on my home system. What I need to know is how to setup several PCI-x ...
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2answers
92 views

Makefile: how to change a specific rule

this is my first question here, I hope to do everything in the right way. I'm a quite new Ubuntu user and if possible I need some help with a specific Makefile. I downloaded QEMU 2.1.0 and I'm ...
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52 views

Ubuntu qemu powerdown failed (timeout) - shutdown prompt is shown on desktop

I'm running Ubuntu 14.04 as a VM using qemu. In my hypervisor, when I send the shutdown system to the virtual OS, the command times out and qemu throws an error saying the shutdown operation failed. ...
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507 views

what is “all-recursive” error in ubuntu and how to fix it?

My goal is to install QEMU in a VM(Ubuntu). Since the source used in apt-get is down, I downloaded and installed the package manually. However, the installation wasn't successful because of the error ...
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83 views

Compiling custom QEMU build: "make: *** [ui/gtk.o] Error 1

I am trying to compile a custom build of QEMU by Torlus (on github) that adds Raspberry Pi emulation. I do not compile software often, though I have before (not my own). After running the "make" ...
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68 views

Disadvantages of installing ubuntu trough qemu/kvm

Since I am testing iso's a lot and I want to do so on real hardware, but can't stand the install process and the associated waiting time (I only have one machine) I have written a script that installs ...
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79 views

Why must write 'br0' in route table to restore host's Internet connection?(with QEMU & Tap)

That's a long story.... But at first, I have to confess that my reputation is less than 15 so I can't give you a '+1'. I need to set up several QEMU instances. One of them is a primary node, which ...
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39 views

Cannot restore a saved machine

I cannot restore a saved machine with both virt-manager and the virtsh restore command: laurent@aspire6930g:/var/lib/libvirt/qemu/save$ sudo virsh restore windows7.save erreur : Impossible de ...
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242 views

Installing Unity 14.04 on qemu arm

How do I install Ubuntu desktop 14.04 with Unity in qemu-system-arm virtual environment? Which debs do I have to install and in what sequence? v Or is there an executable which would make all the work ...
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1answer
582 views

Compile qemu-kvm, kvm - how?

I am using ubuntu 14.04 64 bits and am trying to build kvm - here is what i did according to many messages I saw on this same topic. git clone https://git.kernel.org/pub/scm/virt/kvm/qemu-kvm.git ...
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2answers
100 views

Make bootable image from non-bootable to use with qemu

I hope the question is not duplicate, I didn't find anything helpful by myself. (And sorry for my english) I have a new Raspberry Pi, and I need to install on it an os with some softwares. I ...
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2k views

how to convert *.raw to *.vhd with qemu-img command

I created a memory dump out of the userdata partition of my android device for recovery purposes. I need to be able to convert this dump.raw to a dump.vhd so I can be able to mount it up in Windows ...
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2answers
2k views

Playing game emulators on a virtualized OS (Qemu/KVM)

I'm planning on assembling a machine for development testing and all kinds of software emulation. I already know what to choose in terms of hardware, and my initial idea is installing Ubuntu as the ...
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2answers
496 views

MAAS: Unable to start “Commisioned” nodes

I am having problems while trying to start my first node using KVM (QEMU 2.0.0) and MAAS. Automatic detection worked fine, and during the commission (virtual machine window) I get errors such as: ...
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54 views

Cannot install ubuntu in qemu…partition problem? [closed]

I am trying to install Ubuntu 13.04 LTS server to qemu image file. First, I created qcow image qemu-img create -f qcow2 ubuntu.img 10G and executed qemu with ubuntu server iso image. ...
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447 views

QEMU NFS client cannot mount exported file system

I have setup a NFS server on Ubuntu 14.04 and can successfully mount its exported file system from another "real" machine, but mounting that same file system from a QEMU instances fails with the ...
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0answers
237 views

Xen PCI Passthru works with 2GB RAM but not with 4GB RAM

I set up Xen on Ubuntu 14.04 (Xen 4.4). With my config I can only use PCI passthru when giving DomU 2048MB RAM. When giving 4096MB the GPU doesn't work (windows says Code 12). Here is my win7.cfg: ...
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110 views

How do I run wine through Qemu?

Say im running an ARM based platform but I want to run wine for a simple non-graphically intensive application. Example: MS Office. How does one achieve this?
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1answer
1k views

How to list all virtual machines created using qemu-system-x86_64?

I am using qemu-system-x86_64 to boot virtual machines on kvm running on Ubuntu 12.04 64-bit desktop. I have a few VM's that are currently running. I want to get the list of all VM's booted using ...
2
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1answer
1k views

VM runs very slow using qemu

When I create virtual machine using qemu-system-x86_64 , it doesn't even boot up. This is how I boot the VM: qemu-system-x86_64 -m 1024 -name mac -hda ~/Documents/ubuntu1 but when I create the same ...
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1answer
141 views

Error while creating qcow2 file using qemu-img

When I am creating an qcow2 file using qemu-img command I am getting error as librbd.so.1 file not found. When I check for the dependencies that .so file is present in the /usr/lib folder. Can any ...
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2answers
407 views

Add armhf as a suppoted architecture for guest KVM VMs (on a amd64 host)

I have an Ubuntu Server 12.04 setup with about 6 KVM VMs running. Guests are all x86 or amd64, host is a 2-socket Westmere Xeon box. Now I want to create a new guest VM but this time the guest VM ...
2
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1answer
109 views

Virtualising ubuntu-server on ubuntu using qemu

I successfully created an qemu image containing ubuntu-server. I installed that image server instance using the "normal" option. When I boot up the image using qemu ubuntu-server-13.10.img -boot c ...
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2answers
67 views

Mounting the image to disk [closed]

Using qemu-img i converted disk as a bootable how can i mount this one to my system while i use normal mount For example mount /dev/sdb /bootable it through special disk can't able to mount
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0answers
367 views

Virtualizing Windows 7 with qemu-kvm SATA Issues

I am working on virtualizing a windows 7 image using kvm on Ubuntu 12.10 64 bit. Here are the specs for my machine: CPU: Intel i7-2860WM ,8G RAM I am using an image created with WinImage of a ...
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1answer
3k views

Error trying to compile qemu from source

I am trying to compile qemu from source to get my hands dirty with its development. I cloned the package from the repository. I extracted the tarball and started with the configuration using ...
3
votes
1answer
1k views

Why am I getting a black screen when booting VM using qemu?

When I try to boot a virtual machine using: qemu-system-x86_64 -m 1024 -cdrom /host/iso/ubuntu-13.10-desktop-amd64.iso -name mac -hda ~/ubuntu Iget a black screen just after the installation ...
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0answers
111 views

How to get qemu binaries for mips

I am a new user for qemu. I successfully compiled for my system (x64) but when I tried to compile it for mips it generate error that Why I think that is there any way to get already compiled binary ...
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1answer
193 views

How to define clone presets to virt-manager

When using virt-manager 0.9.1 to clone existing machines, it ignores that the virtual disks are qcow2 compressed and sparsed. The cloned virtual disks are non-sparsed and in raw format. I know about ...