Qemu is a cross-platform processor Emulator.

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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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1answer
73 views

Snappy on QEMU KVM fails to boot

Trying to load snappy in qemu kvm on my Celeron 1307U running 32-bit Ubuntu 14.04 desktop OS, I run: $ kvm-ok INFO: /dev/kvm exists KVM acceleration can be used $ wget ...
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1answer
732 views

Using OVMF on Ubuntu to build a gaming virtual machine

Recently, I bought a new VGA Card, and I decided to create a system that sometimes in the past I've tried to build without any success: a Linux system with a VGA Pass through setup. In this setup, I'd ...
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1answer
189 views

VMs can't ping each other

I have created two virtual machines in virt-manager. All machines (host & guests) run Ubuntu 14.04. Host machine has two NICs. eth1 is used by host. Virtual Network Interface for each VM/guest ...
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1answer
271 views

How to boot from a live USB stick in a virtual machine

I've got a USB stick loaded with a live installation of Ubuntu for testing purposes. When I want to use it, I generally reboot to boot into the live USB installation. I'd like to know what the best ...
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1answer
937 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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1answer
309 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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1answer
276 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 ...
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472 views

Very slow speed while mounting via SSHFS

My host is ubuntu 12.04. My guest is vanilla 3.0.33 kernel with custom rootfs. I have encountered the subj problem, while mounting host folder on the guest machine via sshfs. sshfs ...
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327 views

How do I make wireless bridged networking work with linux guest in kvm/qemu?

I am running the ubuntu 13.10 cloud image on kvm/qemu. The guest networking works fine operating in NAT mode when on wireless. Wired bridged networking (eth0 + macvtap) works fine as well. When ...
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17 views

virt-manager: “Storage parameter error: directory is not managed on the remote host” when importing an existing image from a mounted drive

A server I manage remotely has a KVM/QEMU image stored on a non-os, mounted drive /mnt/drive. When I use virt-manager to import the disk image, I get the following error: Storage parameter error. ...
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0answers
55 views

Higher than 1440p in Gnome Boxes with Spice?

Is it possible to increase the maximum resolution in Gnome Boxes(QEMU KVM) to 4K? Currently it is limited to 1440p. I'm using the Spice drivers. Host: Ubuntu 15.10 w/ GNOME Guest: Windows Server ...
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0answers
131 views

QEMU-KVM with VLANS and no bridges

Please be gentle, I'm both a novice Ubuntu user and novice networking guy. I'm trying to put together a virtual server to support a couple of telephony applications at my office. Both applications ...
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0answers
164 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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22 views

VM Manager is getting error during installation Win7

I would like to install Windows 7 through Virtual Machine Manager, I followed this tutorial for Ubuntu --> http://www.howtogeek.com/117635/how-to-install-kvm-and-create-virtual-machines-on-ubuntu/ ...
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125 views

MAAS KVM nodes commission timesout

So, I have set up MAAS and several KVM and Qemu VMs. When I add them as nodes, they start up during commissioning but then the attempt times out. Here's the line from the MAAS log: [ERROR] test: ...
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203 views

Bridge external IP to the qemu standalone Virtual Machine

I'm having a very specific issue. To let You know what I'm up to, I will describe the whole infrastructure of my system. I've got a Ubuntu host machine on which I run up to 4 virtual Ubuntu ...
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0answers
165 views

Error with qemu emulator

I was writing a boot sector program(in assembly) and created the binary using nasm. The command od -t x1 -A n boot sect.bin confirmed the bytes the assembler had created. However, when I loaded ...
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0answers
276 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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95 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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275 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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424 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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0answers
79 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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699 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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8 views

nVidia 8800 GTX - GPU Passtrough

Is it possible to get nVidia 8800GTX to QEMU VM? I have CPU and Motherboard with VT-d support and two GPU. One (main) is some ASPEED GPU, other 8800GTX. I look through possible guides with no luck. ...
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15 views

Qemu Crash: Assertion `s->csw.sig == cpu_to_le32(0x53425355)'

I am running qemu on centos6.2 host OS. I am trying to launch BSD guest os. While launching this,I am attaching an extra USB disk to qemu. Recently, I have started observing qemu crash due to an ...
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57 views

GLib-WARNING **: /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gmem.c:482: custom memory allocation vtable not supported

I am using Ubuntu version 15.10 and I have installed qemu version 2.3.0 on it. When I try to run the following command: qemu-system-x86_64 -enable-kvm It always gives the Glib error and doesn't ...
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19 views

Cannot find libraries which are already installed

I'm making the QEMU emulator and the the system can't find some library which is already installed. /usr/bin/ld: cannot find -ludev So i tried to find the libraries test@ubuntu:~/codes$ ldconfig ...
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146 views

How do I install Remix OS in GNOME Boxes?

Remix OS is an interesting desktopification of Android. It can run off a read-write-able USB stick but it doesn’t have an installer. I can boot it up in GNOME Boxes just fine, but as I’m just running ...
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83 views

Error in installing QEMU

I downloaded qemu from this link http://wiki.qemu.org/Download. Then i did tar xvjf qemu-2.5.0.tar.bz2 cd qemu-2.5.0 ./configure then getting the following :~/qemu-2.5.0$ ./configure Disabling ...
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58 views

Running UEFI in QEMU machine q35

I wrote a UEFI driver and I'm trying to run it in QEMU (ovmf...). It works fine but when I'm trying to access registers with address >100 hex (access any PCIe device) it fails. I'm trying to run QEMU ...
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0answers
39 views

PCI passthrough not working after VM reboot

I've been spending the last few days trying to get a Windows 10 VM with UEFI & PCI passthrough going. I'm running a rather fresh (2 weeks old) install of Ubuntu 15.10. The GPU I'm passing through ...
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19 views

VGA Passtrough with same IDs

i try to bind my R9 290 to the vfio-pci driver for VGA Passtrough. My System have two GPUs R9 290 and R9 390. Now i have the problem, that both GPUs have the same Vender and Device ID. So I cant bind ...
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0answers
125 views

Problem on multiple network interfaces on a QEMU VM

I'm trying to create a VM with 2 interfaces. I used a linux bridge and Tun/Tap devices to do that. This is my setups: | HOST | Virtual Machine outside ...
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0answers
185 views

Ubuntu 15.10 Blinking cursor problem after qemu installation

I have been using 64-bit Ubuntu 15.10 along with Windows 10 since it was released. 2 days ago I wanted to install qemu. At the beginning it needed an external library (glib 2.22). I downloaded glib ...
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44 views

Delete nbd devices used to mount kvm image

how can i delete the /dev/nbd* device blocks? I need to delete the devices and then recreate them with modprobe nbd max_part=8 because (I don't know why) my script fail if the device was used.. ...
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27 views

Error in [make] command during Qebek installation

I was installing qebek in my laptop x64 architecture (Ubuntu 14.04). During installation I got an error on this command: cd qebek chmod +x configure texi2pod.pl ./configure make Error : collect2: ...
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16 views

Convert Gnome Disks image to Qemu/KVM

I made a backup of my SSD using Gnome disks and I want to run it in a virtual machine. How can I run this using Qemu/KVM? If I have to convert the image before hand how do I do that?
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64 views

Pass through GPU driver segmentation fault

An AMD R7 250 GPU has been passed through to a QEMU Ubuntu virtual machine. The display is output via the physical port of the GPU. It looks fine. But the fglrx driver seems to be not working ...
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54 views

GPU passthrough freezes Ubuntu bootup

I passed through an AMD GPU to a ubuntu guest OS using qemu. The guest OS displays directly via the AMD card and an independent monitor. The guest OS uses Xorg driver for the GPU. But, after I ...
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0answers
19 views

How do I manage partitions on an Ubuntu VM of an Ubuntu host?

I am running virt-manager on Ubuntu. I have a qcow2 file that I use to create VMs. The VMs work. When I log into the VM, I see no evidence the hard disk has more than 16 GB. When I log into the ...
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0answers
65 views

Read config /etc/qemu/ich9-ehci-uhci.cfg: Permission denied

I am running Ubuntu 14.04 and am trying to get USB Autopassthrough to work. As per instructions here: https://fedoraproject.org/wiki/Features/UsbNetworkRedirection I added: <qemu:arg ...
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275 views

Testing UCK Script Customized Ubuntu Mini Remix with QEMU

I am trying to customize Ubuntu Mini Remix using UCK Scripts and test it with QEMU with the end goal of having a bootable usb drive with my customized iso on it. Right now I am just trying to make a ...
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0answers
85 views

KVM QEMU running desktop environment

Is it possible to install KVM QEMU as a bare metal system and then run a desktop environment distro like Ubuntu Gnome as a virtual machine from a USB flash drive? I like to create a portable system ...
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64 views

Kernel debug symbols for ARM64 Trusty

I have qemu running ARM64 Trusty image that I obtained from the ubuntu website. The image name is ubuntu-core-14.04.1-core-arm64.img. I'm trying to install kernel debug symbols onto the image. ...
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0answers
75 views

Unbinding nouveau freezes system

I unbound the nouveau driver from my unused Nvidia graphics card and wanted to bind it to the vfio-pci driver but my whole system froze. I used this script #!/bin/bash modprobe vfio-pci for dev in ...
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0answers
45 views

Unable to connect to internet from iOS running in a VM

I basically followed this tutorial entirely to run Mac OS (iPC_OSx86_10.5.6) on Ubuntu 14.04 using qemu: http://nnucomputerwh...-with-qemu.html The only difference in execution was this: Ethernet ...
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0answers
64 views

How to persistently mount QEMU .img file via NBD

I'm trying to find a way to attach to and mount a QCOW2 .img file in such a way as the img file will remain connected and mounted after the system reboots. As it stands, the only way I've been able ...
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297 views

QEMU/KVM Physical Hard Drive

i need help to write a guest system (QEMU/KVM) on a physical disk. Actually i use a IMG File to installing my guest system with this command in my script: -drive ...
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145 views

Invalid login Ubuntu-Snappy on QEMU

I booted Snappy on QEMU but I tried to login with credentials ubuntu/ubuntu but I always get invalid login message. First, I used Snappy version provided by raspberry, it can login however I can't ...