Qemu is a cross-platform processor Emulator.

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1answer
5k 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 ...
1
vote
1answer
329 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; ...
0
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0answers
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-...
0
votes
1answer
114 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 ...
0
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0answers
19 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/...
0
votes
1answer
52 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 ...
1
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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:...
1
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1answer
330 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
13 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: ...
1
vote
1answer
851 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 ...
0
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1answer
73 views

Issues with QEMU GPU passthrough on ubuntu 14.04 LTS

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 links to the tutorials https://www.youtube.com/watch?v=w-hOr44oBAI https://www.pugetsystems....
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0answers
17 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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0answers
24 views

How to install KVM-QEMU on my ubunt?

I am having hard time to set up KVM. I installed virtual machine manager for QEMU-KVM and I am trying to run it but when I do the network setting, my host machine disconnected of the internet. I am ...
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0answers
51 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 ...
1
vote
1answer
55 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
45 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
36 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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0answers
58 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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0answers
29 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
28 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 ...
0
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2answers
310 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.
2
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0answers
27 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. ...
0
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1answer
42 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
256 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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0answers
20 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 ...
5
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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 ...
0
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0answers
91 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
30 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 -...
4
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0answers
516 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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0answers
199 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 ...
2
votes
1answer
661 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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0answers
143 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 ...
0
votes
1answer
236 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
91 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 ...
10
votes
4answers
30k 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 ...
1
vote
2answers
373 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 ...
0
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0answers
47 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 ...
2
votes
0answers
70 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 ...
0
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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
votes
1answer
2k 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 ...
1
vote
1answer
177 views

QEMU VM reboots host upon running

I am trying to run virt-install on Ubuntu Server 14.04.3 in order to install a QEMU VM from a qcow2 image. Running virt-install, I get no errors. $ virt-install ... starting install... ... virsh --...
0
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0answers
160 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
147 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: ...
1
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2answers
6k 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 ./...
0
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0answers
22 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 ...
0
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0answers
199 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 2....
0
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0answers
59 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.. ...
1
vote
1answer
915 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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vote
2answers
298 views

Cant unbind or blacklist driver

Hello I want to unbind or blacklist my graphicscard driver. Currently it uses the noveau driver but I cant blacklist it when I type blacklist noveau in /etc/modprobe.d/blacklist.conf and then reboot, ...
0
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2answers
670 views

Unbind Radeon > hand over to VFIO-PCI

i have two Radeon GPUs (AMD R9 290 and AMD HD7870) i want to unbind the R9 290 from the radeon driver and hand over it to QEMUs VFIO-PCI driver. I'm using these commands: echo 0000:06:00.0 > /sys/...