Qemu is a cross-platform processor Emulator.

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38
votes
3answers
88k views

“autoreconf: not found” error during making qemu-1.4.0

I was ./configure'd the qemu-1.4.0 and during make it cause: (cd /home/amin/Simulate/qemu-1.4.0/pixman; autoreconf -v --install) /bin/sh: 1: autoreconf: not found make: *** [/home/amin/Simulate/qemu-...
28
votes
4answers
90k views

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 ...
27
votes
3answers
18k views

How can I ctrl-alt-f# to get to a TTY in a QEMU session?

I'm doing an install via testdrive using QEMU/KVM and I would like to check the log files during the installation, however I can't figure out a way to send Ctrl-Alt-F1 and other F keys to the ...
18
votes
5answers
46k views

How to resize virtual machine disk?

Is there anyway to resize a virtual machine's disk? Say increasing the disk size from 32GB to 64GB. I am running KVM/Qemu on Ubuntu server 11.10 64bit. Thanks.
16
votes
1answer
10k views

What are practical advantages of using linux-image-virtual kernel?

Ubuntu provides an alternative kernel package - linux-image-virtual, that is supposed to be optimized for use in virtual machines. What are actual optimizations and how much faster/smaller/better is ...
14
votes
4answers
28k views

How do I mount a qcow2 disk image?

I have a QEMU virtual machine that uses a qcow2 disk image. How can I mount its filesystem without powering on the virtual machine?
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 ...
9
votes
2answers
4k views

Is my VM using KVM or QEMU?

After installing Ubuntu 11.10 and copying my KVM images which were created on Ubuntu 11.04 over to the new system, I notice that Virt-manager says it's using QEMU and not KVM. Also when running virsh ...
9
votes
1answer
2k views

How do I deploy a virtualized server on a headless machine running 12.04 Server?

There is so much different information out there about setting up a virtual machine but I'm at a lost where to start. My fundamental question is: How do I virtually deploy a web server (complete with ...
7
votes
2answers
12k views

Qemu KVM VNC Support

Do I need to install a special package to get the VNC support ? I installed: sudo apt-get install kvm qemu-kvm qemu-kvm-extras Everything works fine, I only get no VNC server up and running, ...
6
votes
3answers
13k views

How do I run qemu with 64bit processor on a 64bit machine?

I'm running Ubuntu 11.04 64 bit and recently installed qemu-kvm. Now I want to start a 64bit live CD using qemu -m 512 -boot d -cdrom archlinux-2010.05-netinstall-x86_64.iso This loads the image and I ...
6
votes
2answers
11k views

KVM kernel module error

I just installed qemu and ran qemu-system-i386 -hda ubuntu32 -cdrom ~/Downloads/ubuntu-12.04-desktop-i386.iso -m 1024 -boot d and got some errors Could not access KVM kernel module: No such file ...
6
votes
2answers
4k 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: ...
5
votes
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 ...
5
votes
2answers
1k views

How can I run Unity 11.04 in qemu? [closed]

I want to try Ubuntu Natty with the Unity Desktop and the Compiz Support from the PPA in qemu. But I can't get the Graphic Support to run Unity. Is it possible to get compositing running with qemu?
5
votes
1answer
4k 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 begins(...
5
votes
1answer
493 views

How to create and export a vmware image using vmbuilder

I've been using vmbuilder to build kvm images as such: vmbuilder kvm ubuntu \ -v \ --suite=precise \ --libvirt=qemu:///system \ --arch=amd64 \ --cpus=2 \ --mem=1024 \ --...
5
votes
2answers
1k 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 ...
4
votes
1answer
8k views

Is there any prebuilt QEMU Ubuntu image(32bit) online?

I am playing with QEMU. Here I found some prebuilt OS images: http://docs.openstack.org/trunk/openstack-compute/admin/content/starting-images.html But they are all for 64 bit system while my system ...
4
votes
3answers
8k views

libvirt with SPICE on 12.04 amd64

I'm using 12.04 LTS amd64 as a KVM host + desktop. I have a Windows 7 ultimate 64bit guest on this host. The installation worked perfect with the default (VNC display) settings. Everything also works ...
4
votes
1answer
568 views

Can I run Ubuntu in JavaScript (Linux emulator)?

Is it possible to run Ubuntu in JSLinux ? Here is today's Slashdot post about JSLinux.
4
votes
1answer
5k views

Convert dd image file to iso

I've a disk dump image (.dd) of an old version of X-Linux (X-Linux R41). Is there any chance to successfully convert this .dd image to a .iso? I've tried this conversion through a forensic tool, but ...
4
votes
1answer
12k 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 ...
4
votes
2answers
807 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: ...
4
votes
1answer
1k views

KVM or QEMU_KVM or QEMU_SYSTEM_x86_64 on Ubuntu 13.04

I have a clean fresh updated install of 13.04 server with no graphical display just CLI. I want to run a couple of Windows and Linux guests so did some research and it looked like KVM was the way to ...
4
votes
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....
3
votes
1answer
13k views

“ERROR: zlib check failed” while compiling Qemu

I recently formatted my PC and reinstalled Ubuntu 13.04 via Wubi in Windows. And after updates I'm getting this error: basel@ubuntu:~/Desktop/qemu-1.6-test$ ./configure --cross-prefix=i586-...
3
votes
1answer
1k views

How can I run qemu with KVM over ssh?

When I run qemu -cpu kvm64 -snapshot -hda binary.img at a local console, the image boots and runs as I expect. However, when I log in via ssh -C -X, I see: $ qemu -cpu kvm64 -snapshot -hda binary.img ...
3
votes
1answer
781 views

kqemu ppa for 10.04

Where is a good (working, no dependency issues) PPA for qemu-kqemu and the kqemu module builder for Ubuntu 10.04? A good PPA from which to obtain kqemu for 10.04 from would be one that has a working ...
3
votes
2answers
1k views

Running 64 bit Ubuntu distribution from 32 bit Ubuntu

Related to this question How do I run qemu with 64bit processor on a 64bit machine?, I'm trying to run latest ubuntu 11.10 64bit distribution under Ubuntu 11.04 32 bit using qemu on a core2duo (64 bit ...
3
votes
1answer
2k views

Portable virtual machine with preinstalled Ubuntu for Windows?

I download "Damn Small Linux (DSL)" distribution from (http://ftp.belnet.be/packages/damnsmalllinux/current/dsl-4.4.10-embedded.zip) and this distribution has a very interesting version called "...
3
votes
1answer
4k views

How do I connect to my running VM via virsh?

My VM has already been started via virsh start chameleon.ootbdev. When I do a virsh console chameleon.ootbdev I get the following output: Connected to domain chameleon.ootbdev Escape character is ^] ...
3
votes
1answer
5k views

Which is best to use on a HEADLESS Server that is going to be use as virtualization host? KVM / XEN / QEMU?

Okay, The main purpose is to learn about virtualization and play around with it. However, I have a problem of determining which is best for a headless server. I want to run several Linux distributions ...
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 ...
3
votes
1answer
5k views

How to troubleshoot a macvtap network in kvm/virt-manager

I have a virtual machine running under qemu-kvm, on a 13.10 host. I am using virt-manager to define the machine, and I have added a virtual NIC, using the new macvtap driver. I have the following ...
3
votes
0answers
342 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 ...
2
votes
1answer
4k 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 ...
2
votes
2answers
6k views

Update Qemu on Ubuntu 12.04

Currently Ubuntu 12.04 comes with Qemu 1.0, 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 > 1.0 ...
2
votes
1answer
2k views

How to remove QEMU completely

I installed QEMU from software center but removed latter (using software center). But updates are recommended to QEMU (see screen shot). That means QEMU is not uninstalled properly. How can I ...
2
votes
1answer
4k 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 qemu-...
2
votes
1answer
149 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 -...
2
votes
1answer
3k views

Compiling qemu with spice support

I am trying to compile qemu 1.3 with ubuntu 12.04 with spice enabled, I get this error: ERROR ERROR: User requested feature spice ERROR: configure was not able to find it ERROR I have read around ...
2
votes
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. ...
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 ...
2
votes
1answer
649 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 ...
2
votes
0answers
146 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 ...
2
votes
0answers
534 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 ...
2
votes
1answer
4k 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 /sys/bus/pci/...
2
votes
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 ...
2
votes
0answers
176 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 ...