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

learn more… | top users | synonyms

0
votes
0answers
6 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 ...
3
votes
1answer
13 views

virt-manager: is it possible to assign specific IP addresses to certains VMs via the virtual DHCP?

using virt-manager quite successfully. I am wondering if it's possible to specify in the virtual DHCP server, that some virtual machines will have a specific IP address (maybe via MAC address ...
0
votes
1answer
18 views

No network interface in QEMU

My network interfaces never shows up in my guest computer. I'm compiling a linux kernel (3.3 I think) from scratch with default settings + Symbol: NE2K_PCI [=y] Type : tristate Prompt: PCI NE2000 ...
3
votes
0answers
14 views

Why does saving a KVM-QEMU VM requires additional memory?

I have three VMs running on Red Hat Enterprise Linux with 8 GB RAM, each of the VMs has 3 GB allocated, and I also run a 512 MB VM. If we also consider the guest OS's memory usage (usually 1.5 GB due ...
0
votes
0answers
31 views

Adding QEMU/KVM option to virsh VM starting script

I use libvirt to manage a QEMU/KVM system. Starting a VM only by using virsh start vmname What I want to know is how to add an option to virsh starting script, in my case I want to add QEMU ...
2
votes
1answer
86 views

Getting an already installed Android x86 partition to run on KVM

(Originally posted on SuperUser here, but posted here due to lack of responses.) I have Android installed on sda3, and it boots fine when loaded from Grub with the following commands: set ...
1
vote
2answers
63 views

how to pass Ctrl-C in qemu

I configured Qemu's grub the following way: GRUB_TERMINAL="serial console" GRUB_SERIAL_COMMAND="serial" GRUB_CMDLINE_LINUX="..console=ttyS0" and run the Qemu process with "-nographic" command line ...
2
votes
1answer
205 views

Install Solaris 8 on Qemu-SPARC

I've been struggling with installing Solaris 8 Sparc-32bit on Qemu for a while. So far I've viewed several sites with instructions on how to install Solaris-sparc32bit on Qemu. But only yesterday was ...
1
vote
1answer
40 views

qemu hangs on loading Fedora 20 guest

I launch Qemu in test console: % qemu-system-x86_64 -cpu host -boot c -hda fedora.qcow2 -snapshot -m 1024 --enable-kvm -name vm0 -curses -pidfile /var/run/vm0.pid -net none -netdev ...
2
votes
0answers
187 views

Shared folder between QEMU Windows guest and Linux host

In the past I have used Virtual Box which has very good support for sharing a folder on the host with a Windows guest. I am looking for similar functionality for QEMU. The documentation suggests to ...
1
vote
1answer
46 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' ...
2
votes
0answers
70 views

USB ethernet device not working in VM

I'm having trouble getting a USB ethernet device working in a qemu-kvm/libvirt VM. The problem is that even though the guest OS sees the USB device just fine it can't mount it. lsusb on the guest ...
3
votes
0answers
37 views

Booting a GRUB2 image directly in QEMU

I have an image file that the Linux file utility says is an ELF image. If I create either an GRUB2 based ISO file or a qcow2 file QEMU is able to boot it successfully. For example qemu-system-i386 ...
1
vote
1answer
88 views

Place grub on virtual disk

To learn about Linux startup process I placed grub in a disk image file and tried to boot using qemu. I currently has not put any kernel image into the drive just grub. I installed grub using kpartx ...
1
vote
1answer
298 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 ...
0
votes
2answers
122 views

running qemu on Fedora20

With Fedora20 and built from sources qemu-2.1.1, I'm experiencing issues to run qemu with non-root privileges: % qemu-system-x86_64 -hda vdisk.img -m 512M -netdev ...
1
vote
0answers
74 views

qemu-img: invalid file format 'raw' [closed]

I'm trying to convert an image using qemu-img but I'm getting an error: qwmu-img: Invalid options for file format 'raw' Here's what I'm doing in the terminal qemu-img convert ...
0
votes
0answers
45 views

vdi image wont boot after converting from raw format

I created a virtual disk from a live archlinux instance following this article which is bootable and works. to summarize: > fallocate -l 4G archlinux.raw > mkfs.ext4 -F archlinux.raw > ...
1
vote
1answer
77 views

Establish connection between Qemu Raspbian machine and Host

Objective: I would like to install several virtual (emulated) Raspberry machines on the laptop, connect them to each other and to the laptop. Afterwards I would like to send tcp packets from virtual ...
5
votes
1answer
316 views

Emulate RaspberryPi using QEMU

I would like to run a RaspberryPi system on my MacOSX using QEMU. I tried the following, using this tutorial: ./qemu-system-arm -M versatilepb -cpu arm1176 -m 256 -hda ArchLinuxARM-2014.06-rpi.img ...
1
vote
1answer
502 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 ...
0
votes
0answers
109 views

QEMU fullscreen mode on external monitor

I recently purchased an external monitor which I succesfully connected to my Lenovo Thinkpad and the accompanying Lenovo Advanced Dock via a DVI-D cable and it works fine so far. Unfortunately, I'd ...
1
vote
2answers
68 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 > ...
2
votes
1answer
67 views

How does chroot's use of qemu for cross compile environments work?

To be able to do cross compiling there's a trick where you copy a static qemu binary into your <different-arch-root-to-be>/usr/bin and when you chroot into that filesystem, which has non-native ...
1
vote
1answer
321 views

How to migrate from Proxmox to VMWare?

I am wondering how it is possible to migrate a full hardware VM in Proxmox (qemu) to a full hardware VM in VMWare (vmdk). I have been searching all over the place, and it seems almost impossible to ...
0
votes
1answer
76 views

qemu can't run linux kernel

I saw this question and I did pretty much the same but I enabled initrd in configuration to use temporary root file system and no other modification but I still get this error on: qemu -kernel ...
2
votes
0answers
117 views

persistent network interface naming and kvm

I wonder why my network interface is still named eth0 in my kvm guests. udevadm just outputs # udevadm test-builtin net_id /sys/class/net/eth0 2> /dev/null ID_NET_NAME_MAC=enxc2184ae7ab3f I ...
0
votes
0answers
38 views

Error Restoring Virtual Machine

I've gotten an error restoring a virtual machine. How should I resolve / troubleshoot this error: Error restoring domain: internal error Device 001:004 is already in use
1
vote
2answers
73 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 ...
0
votes
0answers
51 views

Bridge-utils installed on ubuntu 13.04 but unable to start the service

I upgraded my laptop Ubuntu 12.04 to 13.04. Before upgraded to Ubuntu 13.04, I installed qemu-kvm, bridge-utils, libvirt-bin & ubuntu-vm-builder. There its worked properly, After upgraded to ...
2
votes
1answer
2k views

Arch Linux in Qemu : Failed to access perfctr msr error

I got the Arch Linux (march build) iso file through bittorrent lately. I tried to run it in VM, but it only gets up to the main screen (The screen where you select what you want to do) shown below: ...
5
votes
1answer
266 views

Retrieve serial port information of a libvirt domain?

I'm trying to retrieve the serial port information, aka Source Path of a libvirt domain (using qemu/KVM machine): Serial Device 1 (Primary Console) Device type: pty Source path: /dev/pts/2 But ...
6
votes
1answer
230 views

kvm killed by oomkiller

kvm version: QEMU emulator version 1.1.2 (qemu-kvm-1.1.2+dfsg-6+deb7u3, Debian), Copyright (c) 2003-2008 Fabrice Bellard libvirtd version: libvirtd (libvirt) 0.9.12.3 debian version: 7.5 I'm running ...
2
votes
1answer
413 views

virt-install cpu0 unhandled rdmsr

I'm trying to install a guest VM using KVM on a partition. I use virt-install. I call the following command: virt-install -n centos --ram=1536 --vcpus=1 ...
4
votes
1answer
89 views

Sharing partitions in qemu

Apart from networking and partition sharing I've made qemu work pretty much like I want it to. I've got a bit of a special setup, I need to pass through /dev/sda, /dev/sda1 and /dev/sda2. (Is it ...
0
votes
0answers
251 views

SOLVED: KVM Can't Read Keymap File on Ubuntu 14.04

When I try to create a KVM domain with virt-install on Ubuntu 14.04, I get the following message: ERROR internal error: process exited while connecting to monitor: Could not read keymap file: ...
2
votes
1answer
147 views

connect two VMs and one VM to the internet

Disclaimer: My knowledge about networking as well as qemu is little to none. I'm using QEMU to run a Debian VM that runs an application. For testing purposes I now want to create a second VM running ...
1
vote
0answers
766 views

Cannot Start KVM VM Because Missing BIOS

Whenever I attempt to start a KVM VM on Ubuntu 14.04 with the "kvm" command, I get the following error: qemu: could not load PC BIOS 'bios-256k.bin' I have searched for this file and found it ...
0
votes
0answers
27 views

booting freezes after used scheduler greatest stack depth error

I have built the linux kernel 3.14 with debug info. When I tried to boot it gives following error and after that booting freezes. Can somebody tell me how to fix this ? Linux Version : Slitaz in ...
1
vote
1answer
486 views

Qemu 2.0 Windows guest - mouse stops working (vnc) when using usb-passthrough

I have installed Qemu 2.0 on an Ubuntu Server 14.04 LTS computer. I use Qemu to run multiple virtual machines. One of them is using Windows 8.1 Pro (x64) and is used for back-ups. The guest runs fine ...
0
votes
0answers
20 views

TightVNC shows the window cropped

I am running debian live cd in qemu (kvm), and when I connect to VNC via vncviewer localhost:5900 the window is cropped to some static width and height combination. Making window fullscreen or ...
3
votes
1answer
151 views

Backtrace of “git clone” running inside qemu-user-emulation based arm-chroot

I'm running a wheezy:armhf chroot using qemu user emulation on my jessie:x86_64 system. Somehow, a git clone on a particular private repository will hang inside the chroot, while succeed natively. ...
0
votes
1answer
372 views

Solaris 10 installation on KVM constantly reboot

Successfully installed Solaris 10 sparc on KVM. However when I restarted the VM it doesn't go to login screen but just constantly reboots. I've read different documents link1 link2 link3 but none of ...
0
votes
1answer
80 views

Secondary bridge only working at random in debian wheezy

We are currently migrating from vmware server to kvm. So far everything works smooth, with the exception of the secondary bridge. Our network layout is as follows: Firewall with 3 ports eth0 Public ...
2
votes
1answer
321 views

Qemu Backing Files Question

If I'm creating a new.qcow2 qcow2 image based on a backing file (called base.qcow2) and the backing file is located on an nfs share. What happens if someone tries to modify, replace, or delete the ...
3
votes
0answers
114 views

Migrate a qcow2 image between storage pools

I have 2 storage pools. host_images (directory storage pool) remote_images (nfs storage pool) How do I copy qcow images from remote_images to host_images using libvirt APIs? I've tried using the ...
3
votes
1answer
72 views

filesystem that works under qemu and I can mount on my host

I'm using qemu for different kind of tasks, I would like to pick a filesystem that is both qemu-compatible and easy to mount under my host. I already discarded both qcow and qcow2 because apparently ...
0
votes
0answers
132 views

How to install Ubuntu 13.10 virtual machine on top of KVM running on Ubuntu 13.10

When I try to install LUbuntu 13.10 as a virtual machine using Qemu-KVM running on Lubuntu 13.10, I get a garbled screen when I start the virtual machine and/or when I start the installation process. ...
5
votes
2answers
4k views

ssh from host to guest using qemu

How do I setup ssh from the host to the guest using qemu? I am able to use port redirection when I boot the VM without any special parameters, as follows: /usr/bin/qemu-system-x86_64 -hda ubuntu1204 ...
1
vote
2answers
282 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 ...