Linux Kernel Virtual Machine is a virtualization system (VM)

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OSX + X11 + KVM keyboard mapping

I'm ssh -Xing from my macbook air into a remote linux machine, on which I'm running virtual machines with kvm. Somewhere along the way, something is lost--it says I can press ctrl+alt to release the ...
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Better use XEN or KVM? [closed]

I have read a lot about XEN and KVM (best documents I read where from phoronix.com and major.io) and would like to know which one is really better. The thing is, that according to the stuff I read ...
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Cannot create a virtual machine on Fedora: Activation of org.freedesktop.machine1 timed out

I am trying to create a new VM within Fedora using virt-manager. However, I get the following error: Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line ...
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27 views

What happens when KVM virtual machines try to use the same core of a processor?

I have many virtual machines hosted with KVM on a single server. The problem(?) is there are now more machines then cores of the processor. From what I found I cannot use more RAM then I have but can ...
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66 views

kvm+vfio+vga passthrough, got “root.1” not found

I have a 64bit windows VM using KVM. I want to try VGA passthrough. I started my VM with: qemu-system-x86_64\ -monitor stdio\ -enable-kvm -m 2048 -no-fd-bootchk -localtime -M q35\ -bios ...
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Centos install using KVM stuck on trying to access install.img

Greeting Folks, I am trying to install Guest or DOMU on a remote server and every time I try is get stuck at Retrieving /install.img. I believe its a network setting but am not entrely sure. Here is ...
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61 views

Getting an already installed Android x86 partition to run on KVM

I have Android installed on sda3, and it boots fine when loaded from Grub with the following commands: set root='(hd0,3)' search --no-floppy --fs-uuid --set=root 977083a6-5762-4064-b860-39429b9e0cf8 ...
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25 views

I can't see apache, nginx process while using “top” command

As the title said: "I can't see apache or nginx process while I'm using top command" I'm using CentOS 6.5 and of course I already installed it on my server. I run them as a service by using these ...
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34 views

Correct location to configure a bridge using iproute2

I'm setting up a server for KVM virtualization and having a play with linux networking while I'm at it. Initially I'm aiming for a very simple bridged network set up where eth0 is enslaved to the ...
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18 views

I want to start VM for specific time

I am designing a system in which lot of VMs are there which run on KVM. My physical resources are limited, that is why I want to allow some of the VMs to run for some specific time(say Every Wednesday ...
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66 views

Install ubuntu on kvm in console

I use the following command to install Ubuntu server on KVM in a remote server using SSH console. But it seems that it does not recognize the iso image I provided as (a) it does not install without ...
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42 views

Unable to start VM from php

From a php page I am trying to start Virtual Machine using virsh tool on KVM hypervisor but I am getting this error. error: Failed to connect socket to '@/var/www/.libvirt/libvirt-sock': Connection ...
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178 views

is 3d acceleration possible in a win7 kvm guest? (host is debian 7)

I wonder if I can setup a windows 7 (64bit) kvm guest. I have only found some links for 3d acceleration in virtualbox guests, but nothing for KVM. Note that the host is a headless debian server and ...
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78 views

Why is [ssh,scp,rsync,etc] so slow, from a VM to another local machine on my gigabit local network?

I have a VM A running the latest archlinux with QEMU, KVM and a Virtio network card. It is a buildbot and it needs to drop the result on another machine B on the local network. The VM is started with ...
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52 views

Wrong modification times when saving on Samba share

I have a kvm virtual machine with Windows 8.1 with main purpose for Word/Excel and a bit of PowerPoint. Sometimes I save the virtual machine state and when turning it on again, the date and time of it ...
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187 views

KVM bridged networking issues

newbie warning: I'm completely new to virtualization so there might be an ridiculously simple solution to this... I'm trying to run a virtual machine with KVM on Ubuntu 14.04.1 LTS as host. For ease ...
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83 views

What's wrong with RHEL 6.5 on POWER in a PowerKVM guest?

I am seeing errors on two PowerKVM (Ver 2.1 SP1) systems on booting to the console of the form: irq: irq 4110 on host null mapped to virtual irq 27 BUG: Bad page state in process vballoon ...
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893 views

How to mount KVM virtual machine image to VirtualBox?

I have received a .img file of a server which is a Virtual Machine running in a KVM environment. The Virtual Machine has Ubuntu installed. I would now like to take this .img file and "emulate" the ...
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I wish to automate VM installation in KVM how do I?

I wish to automate VM installation in KVM. How do I do it? My setup is as follows: Host server: Ubuntu 12.04 64 bit RAM: 48 GB HDD: 800 GB CPU: 24 I wish to install Virtual machines using ...
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129 views

Enabling Intel VT-x on Vagrant guest

I'm running OSX Mavericks, and I know hardware virtualization is enabled. I have a debian VM in Vagrant with a virtual CPU that has support for hardware virtualization, but the vmx flag is disabled. ...
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qemu: How to use resolutions > 1024x768 in Windows 8(.1)?

In previous Windows versions, I was able to get higher resolutions in qemu/qemu-kvm by passing the -vga std or -vga vmware command line parameters. However, when I try the same for Windows 8 (and ...
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Virtual machines on Secure Boot

I have Fedora 20 installed with Secure Boot. I've been trying to make a virtual machine using OracleVM VirtualBox and VMware Workstation, but none of them work (vmmon couldn't be started). After ...
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How do I migrate a virtual machine using LVM from VirtualBox to KVM?

I have a virtual machine running CentOS on VirtualBox with a drive that uses LVM for partitioning / volume management. I need to migrate the vm to a linux-kvm host machine. Here's the steps I've ...
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Virtual machine - Sleep seems too long

I run a loop that does nothing except sleep for 1 ms and count the number of time it loops. In a KVM virtual machine, I get 500 loops per second, where I expect to have 1,000 loops. That happens with ...
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81 views

Weird output from linux `top` command

I got a weird output from command top, which shows the summation of the RES column is greater than my physical memory. For instance, I have a host with 64G physical memory and the swap partition has ...
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401 views

why do i get swapping even if i set vm.swappiness to 0?

I have a couple centos 6.5 x64 servers with 64GB ram running lots of kvm vps's. some of these servers have no swap usage at all and some do. I've set swappiness to zero. However some still swap even ...
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CentOS bridged adapter

I am looking for a way to have a bridged adapter that can also forward ports to different IPs for my virtual machines. For example: 192.168.1.101:3391 192.168.1.102:3392 192.168.1.103:3393 Does ...
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2k views

Mirror Port via iptables

I have a dedicated Linux (Debian 7.5) root server, with a number of guests set up. The guests are KVM instances, and get network access via bridge-utils (NAT, internal IPs, use the host as a gateway). ...
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Create new VM based on existing .vhd with command line

I created an Ubuntu Server .vhd with Virtualbox and would like to boot it on another Ubuntu Server instance using kvm. How can I boot the .vhd and have it used bridged networking?
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245 views

Define new VM with virsh create (error: Failed to create domain from)?

On debian 7.3 I install KVM for virtualization. I have a VM on an other machine and try to clone it by virt-clone on LVM disk and then dd that disk to a file for moving to this machine. In target ...
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Improve the screen resolution in a virtual machine

I installed Windows Server 2012 Trial in virt-manager/qemu-kvm. When I look at the display settings, the screen resolution is limited to 1024x768 and there is only one Generic Non-Pnp Monitor in the ...
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KVM Arch install - no network

I often use KVM to try out various Linux distros. All I have tried so far get an automatic network, Red Hat and Debian have all connected out of the box, no problem. Makes installations very easy. ...
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Adding a disk fails - how to troubleshoot?

I'm utilizing the KVM API by POST-ing the following payload <disk> <name>bond-104_Disk0</name> <storage_domains> <storage_domain> ...
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What's the diffrence between snapshot-create and snapshot-create-as in virsh kvm?

On my virtualization system there are some VMs. One of them was aimed for testing some services on it. So in this case I need to have the first state of that VM. I searched for a solution found the ...
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698 views

Unable to get folder sharing to work under KVM Virtual Machine Manager

I've created an Ubuntu VM inside my Ubuntu using Virtual Machine Manager. I'm trying to mount a host directory in guest OS but it's not working. I used the instructions provided here: ...
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Qemu and KVM error in my system

Whenever I execute virsh version or qemu version I got this error qemu: symbol lookup error: qemu: undefined symbol: rbd_aio_discard I am unable to create the virtual machine in virtual machine ...
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521 views

nova-compute libvirt x86_64 emulator Error

I was trying to install openstackin Ubuntu12.04 server. I find that Nova-compute is not getting started and the error is the below. I followed some of the suggestions in various forums, but nothing ...
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Is Flash hardware acceleration assignable to a given GPU?

On a KVM Windows guest with VGA passthrough, Flash hardware acceleration is not working, e.g. it shows a green screen for youtube videos. The GPU (AMD) is working well and has the latest drivers, ...
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can't connect to kvm rhel guest from fedora host over any port other than 22 (ssh)

I have a kvm guest running Red Hat Linux in a Fedora 19 host. Running a ruby app in the guest on port 3000. I can ping the guest, and ssh into it from the host, but I cannot access the app itself. ...
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Finding Storage pool/volume path using virsh

I have a few questions about storage pools and volumes in KVM. Is there a way to get storage volumes' paths via virsh? How do I associate a storage pool to the path it is located in? virsh ...
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175 views

VPN access kvm guests

OpenVPN is installed on my host system running kvm as virtualization and I've several guests with static/public (Bridged) and private IPs (NAT), every guest uses Samba to share some folders. how can ...
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KVM images not reading from custom location

In CentOS linux server I have a disk scenario as , A LV with vg0 in it and in that I have created a directory with intention as KVM have to read the images from this location. I have set KVM to read ...
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79 views

Virtual machine internal network - same host

If I have 2 VMs (web server + db server) on same physical host, how can they communicate? Being on the same host what speed can expect? Its CentOS KVM. What is the situation with SmartOS Zones where ...
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560 views

How do I convert my windows partition to a kvm virtual machine on Fedora?

I have a single hard drive with a windows partition and a fedora 19 partition. Is it possible to use a tool (e.g. virt-p2v) to convert the windows installation into a virtual machine on Fedora? Disk ...
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Why is my cloned kvm VM smaller than my original vm?

The order of each VMs life was: f20-openstack.img f20-openstack-clone.img f20-openstack-preinst.img f20-openstack-postinst.img -rw-r--r--. 1 root root 878M Mar 5 13:45 ...
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How to install KVM and VMWare side by side on Fedora 20 x86_64?

I use Fedora 20 x86_64, and I have KVM installed. However, for a course assignment, I have to install VMWare (to be exact, VMWare Workstation 10). Yes, I have to use VMWare. However, (as expected ...
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Ubuntu KVM failed to set up

I'm trying to set up a VM with KVM on my Ubuntu 12.04 machine (64 bit). I followed the installation instructions to the letter at http://www.howtoforge.com/virtualization-with-kvm-on-ubuntu-12.04-lts ...
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201 views

Thin provisioning disk space in KVM

I have a couple of KVM nodes with 4xSATA drives in RAID10, which I am using as a VPS node. I have a LVM set up, and I am using SolusVM for the nodes. There's already 30 VPSes each on the nodes, so I ...
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No connectivity in virtual machine (kvm)

I have installed virtual machine using kvm. But i cant access network . My ifconfig shows the following [root@server recorder]# ifconfig br0 Link encap:Ethernet HWaddr E0:CB:4E:DD:88:CF ...
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82 views

One speaker set for two computers

In my case, i have a setup of a linux host machine and a windows virtual machine, i have a soundblaster dedicated sound card and an intergrated intel hd soundcard. I was thinking i want to use the ...