Linux Kernel Virtual Machine is a virtualization system (VM)

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Implementing PCI-Passthrough with Linux-KVM on Debian

I am attempting to use PCI-Passthrough to attach an old video card (Radeon 4770) to a virtual machine. I am using Linux-KVM to run my virtual machines on a Debian Linux (Wheezy, 3.2.0-4-amd64) host. ...
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118 views

Mouse movement in KVM is much slower than VirtualBox, any work arounds?

I'm running KVM in latest Ubuntu, mouse seems pretty slow compared to host machine, the cursor looks "heavy" to me, Anyone know what could possibly wrong ? I use a wireless mouse that connects ...
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158 views

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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55 views

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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106 views

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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525 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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81 views

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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151 views

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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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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273 views

How to set up a VM gateway/DHCP and virtual network in CentOS KVM?

Today I have a working setup where the physical host runs W2k3. It has 2 physical NIC's. It runs Vmware server and I have a ClearOS VM installed acting as a FW/DHCP/DNS for both the host and all the ...
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95 views

Unknown OS hostname and product in virt-manager

I'm using libvirt on a Fedora 19 host, running various Linux guests with QEMU and KVM hypervisors. Using the virt-manager GUI, when I look at the guest Overview screen, in the Operating System ...
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pulseaudio, in a KVM virtual machine (as root) and your desktop (not root) playing audio at the same time?

How do you get pulseaudio to play sound in a KVM virtual machine (running as root) and your desktop apps (not running as root) at the same time? It seems that by default, it will only play sound for ...
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219 views

How to improve graphical performance of Windows 8 on KVM?

I installed Windows 8 on KVM. But its graphical performance is less than desirable. First I tried to use SPICE protocol to solve this problem, but it doesn't support Windows 8. Next I tried to use ...
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345 views

KVM USB Passthrough and Zydas usb wireless adapter: device or resource busy

i'm tring to setup a kernel testing virtualmachine for a 80211 module. i start my machine with this command: kvm -m 512 -net nic -net vde -usb -usbdevice host:0ace:1215 ktesting.img i set up a ...
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370 views

Virtual Machine Got Frozen on start of installing FreeBSD, on CentOS6.3 KVM

Problem description: In the installation section, after I entered the virt-install command with proper arguments(shown below) to build the virtual hardware configuration, and connected to the vm ...
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119 views

Guest slow after being idle for awhile

I've been playing with ESXi and Linux KVM to try to find out which one best suits our needs. With both of these solutions I've run into the same situation. After a guest has been idle for some time ...
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27 views

Windows 7 Enterprise under virtualization has no networking until login

I created a Windows 7 image to run under KVM based virtualiztion, but the networking for the image will not start until I login. I'm not very familiar with Windows, but it seems as though there is ...
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415 views

How to set up linux watchdog daemon with Intel 6300esb

I've been searching for this on Google for sometime now and I have yet to find proper documentation on how to connect the kernel driver for my 6300esb watchdog timer to /dev/watchdog and ensure that ...
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569 views

Virtualized guest vs host CPU usage

I am using qemu with kvm as my hypervisor. I am running a gentoo guest on an ubuntu host. The guest is being given a single processor. When I run a compute intensive job (say empty-loop) I get almost ...
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4 views

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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17 views

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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70 views

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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64 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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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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184 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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53 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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54 views

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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25 views

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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90 views

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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46 views

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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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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32 views

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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68 views

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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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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41 views

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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50 views

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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18 views

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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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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120 views

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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203 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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53 views

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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49 views

VPN across three VPS's

I have three servers running on virtual machines. The gateway is 192.168.0.1, and the hosts are the numbers 2,3 and 4. The first host is serving a PHP script which outputs the visitor IP ...
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Virtual machines using wrong IP addresses

I have a host computer (A), running three virtual machines: X,Y and Z. They're under a NAT layer, in which the Host A is the gateway (192.168.0.1/16), and the VM's are respectively 192.168.0.2 (X), ...
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407 views

Why gnome-terminal does not show prompt in vnc running on a guest in kvm?

I use KVM to host vm (ubuntu). Then I started vnc4server on the vm. The content of ~/.vnc/xstartup is shown below. gnome-terminal in vnc does not show the prompt and doesn't accept any keyboard ...
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How to access CD-ROM inside kvm guest machine?

I am using KVM in Scientific Linux 6.4 Inside that KVM again I installed Scientific Linux 6.4 as a guest. Now I want to access CD-ROM from that guest machine. In the command prompt it not showing any ...
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159 views

Is there a GUI tool or API for remote KVM management for headless machines

I like virt-manager but I have alot of headless hypervisor. I'm curious if there is a GUI tool that is libvirt based that will allow me to connect to the hypervisors and pullup/monitor/manage VM ...
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523 views

Nested kvm virtualization not working

I am trying to run a Ubuntu VM on Fedora 18 host. Now, my processor supports VT, so I have kvm installed and it's working. I launched the machine (Ubuntu 12.04 LTS) and installed kvm inside it. But ...
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466 views

High performance desktop virtulization / multithreading on the guest with linux 64 bit host

For over 3 years I have been trying to get similar guest performance in 64 bit windows as I have on my i7 870 at work in the tasks I do at work. My requirements are pretty taxing. I need fast CPU, ...
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627 views

Networked Parallel Port in Linux / KVM / QEMU

What I want to use is the "-parallel" tcp or udp option from KVM / QEMU, but I don't seem to find any server for this client. I don't serve a printer but a hardware dongle. I checked ser2net, which ...