QEMU is a cross-platform processor emulator.

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GTX1080 gpu passthrough Qemu

Never had a problem passing through a Titan with QEMU, I've replaced it with a GTX1080 and cant seem to get it to display anything. vfio is doing it's thing: 03:00.0 VGA compatible controller [0300]: ...
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18 views

How can I attach an USB 3.0 to a VM?

I have a problem with the usb3 attachment procedure on a VM created on Openstack (basic version installed using devstack scripting). By contrast, usb2 works fine. The basic Openstack version that I ...
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+50

QEMU SDL_Init failed: No available video device

Total Linux NOOB looking for advice: I'm trying to run a 64bit application on a 32bit PC using QEMU user mode. I have compiled qemu from source, all good, but when I want to start the application (...
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2answers
827 views

Blacklist a Nvidia gpu for qemu/kvm passthrough

I am trying to run Windows in a virtual machine while giving the VM a direct passthrough to the GPU for better performance. I have an integrated intel GPU (I will use this one for the host) and a ...
0
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1answer
92 views

QEMU GPU passthrough on Ubuntu 14.04 LTS (Trusty Tahr)

I am following a tutorial on how to run a VM that can use my GPU, and I have run into a problem. Here are the tutorials: GPU pass through guide for Ubuntu Multiheaded NVIDIA Gaming using Ubuntu 14....
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1answer
4k views

VM runs very slow using QEMU

When I create a 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 ...
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2answers
6k views

Update QEMU on Ubuntu 12.04

Currently Ubuntu 12.04 comes with QEMU 1.0, and I would like to update this to a newer version (1.5/1.6) to achieve maximum performance. However, there doesn't seem to be an apt package for versions >...
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2answers
3k views

Why is QEMU so slow even with KVM

I've been working with QEMU for some time now, and from my experience I see it being very slow compared to other VM tools like VirtualBox or VMware. Even enabling KVM isn't much of a benefit to me. ...
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32 views

Installing Windows 10 on Ubuntu using QEMU/KVM [on hold]

I am new to QEMU and KVM. I want to install Windows 10 using QEMU/KVM command-line utilities. I am running a Ubuntu GNOME 64-bit machine.
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How do I install qemu?

How do I install the qemu command? I type qemu and press tab and I get a list of several binaries installed. qemu-alpha qemu-arm ... qemu-x86_64 but no qemu. I type man qemu and it returns the ...
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52 views

qemu-img convert hangs on Ubuntu Server 16.04 with 100% cpu

When i try to convert raw image to qcow2 format with command: qemu-img convert -O qcow2 base-image.img base-image.qcow2 i have several problems: qemu-img process never stops by itself and i can ...
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2answers
5k 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 046d:...
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37 views

Running Ubuntu 16.04 (ARM) in Qemu

My goal is to run Ubuntu 16.04 (ARM) in Qemu (on Ubuntu 16.04 x64 host). I tried to follow this -old- tutorial without success: Home directory not accessible: Permission denied pulseaudio: ...
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20 views

Ubuntu Server won't work in QEMU: KERNEL PANIC

I tried to install ubuntu-16.04-server-amd64.iso in QEMU as a virtual machine. This was my command to generate the image file: qemu-img create -f qcow2 confImage 100G After creating the image file ...
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1answer
6k 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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1answer
344 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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15 views

Error on librados when trying to install qemu-kvm [duplicate]

I am trying to install kvm on Kubuntu 16.04 64-bit. I am following this documentation. When I try to install qemu-kvm with the following command given in the documentation: sudo apt-get install qemu-...
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1answer
157 views

Ubuntu 14.04 GPU passthrough problem with IOMMU

I have a problem with my GPU passthrough on Ubuntu 14.04, i checked my hard ware and my CPU is i7-2600 which supports VT-x in KVM and i try to passthrough my GTX 960. I did everything exactly as in ...
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0answers
25 views

Passing a physical USB port to QEMU

I currently use a shell script to start my KVM accelerated QEMU vm. My current QEMU line is this: QEMU_AUDIO_DRV=pa qemu-system-x86_64 -enable-kvm -nodefaults \ -machine pc,accel=kvm \ -bios /usr/...
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1answer
64 views

Warnings and errors when updating Aptitude with multiple architectures enabled

I have an Odroid XU3 with Ubuntu installed on it. I recently installed qemu-user-static for the purpose of running i386 binaries. Part of this process was adding the URLs of a repository I can ...
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1answer
349 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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0answers
15 views

KVM quest lost network connectivity

I have problem: lost network conectivity in guest (2-3 days after start). Host: Linux host 4.2.0-36-generic #42~14.04.1-Ubuntu SMP Fri May 13 17:27:22 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux Guest: ...
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1answer
995 views

libvirt: Configure guest to share host audio

For the past days I've been trying to get a x64 Windows 8.1 VM's audio mixed with the host audio with mixed success. The solution which kind of works for me right now is using Spice for audio, and ...
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19 views

How does passthrough mode work in 9p (libvirt/QEMU)?

9p docs at QEMU wiki say that in passthrough mode files on host filesystem are created with guest access credentials. How is that possible? Suppose my guest has user vagrant:vagrant and host doesn't ...
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55 views

Ubuntu 14 KVM host, Ubuntu 16 guest sound battle

I am attempting to get audio fixed on my machine. I am not sure exactly what caused the issue but I now have a battle. I can't get the guest and host sound to work at the same time. The host system ...
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1answer
69 views

9p (libvirt/QEMU) share modes

Can anybody explain what share modes - default, mapped, passthough, squashed - mean in libvirt/QEMU configuration? I've got this share in passthrough mode. I see that inside VM it is owned by ...
0
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1answer
61 views

How to fully remove QEMU?

I have QEMU installed but as I don't really use it and it's recently had lots of security vulnerabilities discovered in it so I would like to fully remove it. I installed it with sudo apt-get install ...
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0answers
39 views

How do I create a bridged network for QEMU?

I bought a new server 1 day ago and this is my first time with Qemu. Can anyone tell me how to create a bridged network for Qemu? I bought 6 IPs on my company. How can I use those for my VPSs? ...
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66 views

how do I install qemu on my bq Aquaris M10?

I am trying to install scrivener (windows, or Linux) on my bq Aquaris m10 tablet. The problem is that scrivener is only written for amd/x86 hardware, and my tablet is arm. The good news is that this ...
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40 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. ...
0
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1answer
32 views

Setting up hard drive in QEMU+KVM?

I'm running Ubuntu 16.04 LTS and I am using QEMU+KVM+OVMF for a Windows VM. Is there a way to mount physical hard drives to the VM only without using a container, as well as keep the data that is ...
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2answers
322 views

qemu not working after installation in ubuntu

I intstalled qemu in ubuntu to execute a kernel .bin file using it. It installed properly. After that when i type qemu -kernel kernel.bin It shows qemu not found.
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32 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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1answer
48 views

Mac boots into Ubuntu on HDD with rEFInd installed and USB selected

My Setup: Mac mini with rEFInd installed; Dual boot System: Ubuntu 15.10 and Mac OS X El Capitan; When I try to boot from an USB-Stick (live disk), which has a Linux distro on it - currently Arch ...
0
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1answer
413 views

How to install “qemu-img” and use it to convert a “qcow2” image to a Virtual Box one?

I have been asked to do some debugging work with gnome-continuous, but as this only comes in qcow2 format for qemu and I do not want to install qemu at this time so this may be slightly problematic, ...
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22 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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4answers
17k views

How do I convert a multiple-part VMDK disk image to qcow2?

I have a VMDK disk image that exists as multiple files: 2.0G guest-s001.vmdk 1.8G guest-s003.vmdk 128K guest-s005.vmdk 2.0G guest-s002.vmdk 1.7G guest-s004.vmdk 4.0K guest.vmdk When running ...
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100 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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0answers
31 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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0answers
534 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 alexhoppus@10.0.2....
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214 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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164 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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1answer
291 views

How can I get a mouse cursor in qemu?

I am using 14.04 on an AMD64 compatible system. Inside this system I am trying to run a virtual machine also with 14.04. I start qemu with this command: qemu-system-x86_64 -cdrom ubuntu-14.04.3-...
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0answers
100 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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4answers
31k views

virt-manager can't connect to libvirt

I'm running Ubuntu 12.04.2 32 bits. The error doesn't show up if I start gksudo virt-manager. libvirt-bin is installed. I don't know how to check for the daemon. I am a member of libvirtd. Output ...
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2answers
418 views

Gracefully shut down QEMU/KVM on host shutdown

I start a QEMU/KVM Ubuntu 15.10 virtual machine on boot and let it run in the background (as webserver). What happens now if I shut down the host (also 15.10)? Will it kill the VM and result in a ...
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0answers
51 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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0answers
75 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
27 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/ ...
3
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1answer
3k 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 ...