Linux Kernel Virtual Machine is a virtualization system (VM)

learn more… | top users | synonyms

2
votes
0answers
250 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 ...
2
votes
0answers
1k views

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 ...
2
votes
0answers
147 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 ...
1
vote
0answers
104 views

virt-install Centos 6.6 - No option 'boot.iso' in section 'images-x6_64'

I'm having trouble using kickstart to set up a VM in kickstart for the first time. I've copied the files off a mounted Centos 6.6 minimal iso to a local ftp server: ftp: //198.162.1.161/pub/inst/ My ...
1
vote
0answers
169 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 ...
1
vote
0answers
162 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. ...
1
vote
0answers
144 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 ...
1
vote
0answers
708 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 ...
1
vote
0answers
98 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, ...
1
vote
0answers
218 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. ...
1
vote
0answers
239 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 ...
1
vote
0answers
364 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 ...
1
vote
0answers
126 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 ...
1
vote
0answers
279 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 ...
1
vote
0answers
386 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 ...
1
vote
0answers
431 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 ...
1
vote
0answers
141 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 ...
1
vote
0answers
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 ...
1
vote
0answers
473 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 ...
1
vote
0answers
682 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 ...
0
votes
0answers
20 views

linux KVM Virtualization: USB cameras and nvidia graphics cards with dual display

I wonder if is possible to create with KVM guest machines (Windows and Linux) they can use 2 monitors (in desktop extension), USB cameras and graphics cards like Nvidia
0
votes
0answers
9 views

guestfs-xxxxxx VMs appearing in LibVirt (virt-manager)

I have a KVM+LibVirt based hypervisor running on Fedora 22. I use virt-manager for managing the VMs over SSH. For some reason I see "guestfs-00kxipwaewnkoq92" VMs appearing and disappearing at ...
0
votes
0answers
10 views

KVM - let the guest listen on a port

I've set up a KVM virtual machine via a VNC connection. It has a "virtual" (?) IP address like 192.168.122.65. This VM runs an SSH server, and obviously, I'd like to be able to log in to it via SSH ...
0
votes
0answers
18 views

Installing KVM virtual machine hangs at “connecting to graphical console for guest”

I am using KVM to install a virtual machine on RHEL 7.0, but the installing hangs, and displays "connecting to graphical console for guest": The terminal log is like this: [167804.496139] ...
0
votes
0answers
16 views

KVM inserts CD ROM at reboot even if kickstart has “reboot --eject”

When installing a VM on KVM host with a kcikstart profile that specifies "reboot --eject" option, on one specific host in our lab, the CD is re-mounted and the installation starts again. For another ...
0
votes
0answers
26 views

How do I replace the dump of my USB recovery media with a more simple EFI partition in this situation?

The situation is as follows: this is a new Dell Precision M3800; it comes with a Windows 8.1 pro version and a USB recovery medium; the machine uses UEFI; I immediately scratched Windows and ...
0
votes
0answers
10 views

What is the page replacement policy in KVM?

I found this picture explaining how Disk I/O is done in KVM. A the image is on http://i.stack.imgur.com/ijd8m.png So, does it use shadow page table or makes two copies of the page when a page ...
0
votes
0answers
32 views

Guest DHCP server

I have a host (CentOS 7 with kvm/libvirt). There are 2 network interfaces on this host. eth0 and eth1. eth1 has no IP address but instead has subinterfaces for each VLAN it is connected to. An example ...
0
votes
0answers
70 views

Can we use Ceph or Gluster FS to avoid IO bottleneck to start many VMs?

AIM: I want to start 50s of VM on s single server or on a set of PCs. Scenerio: I tried to boot 15 VM on a single server with enough computing power(processor) and RAM but disk is a bottleneck in ...
0
votes
0answers
65 views

Use libvirt to configure KVM guest with user defined tap device

As far as I know, if we set up kvm guest OS with libvirt, it will automatically create bridge device virbr0, and tap device vnet0 which represents VM guest nic (and of course vnet0 is attached to ...
0
votes
0answers
16 views

CentOS 7 how to set guest port to jumbo packet automatically

I'm running libvirt on CentOS7. I have an internal virtual bridge setup. Only the guest virtual ports are members of the virtual bridge, and no physical ports are members of the virtual bridge. By ...
0
votes
0answers
147 views

kvm-qemu debian 7 pci passthrough Digium Wildcard TDM410 AMD M5A97

I am attempting to run a Digium TDM410 PCI card in a Debian 7 KVM Virtual machine. So I can have it connect to my analog phone lines 4 FXO and answer calls through my Asterisk PBX phone system I am ...
0
votes
0answers
43 views

touchscreen passthrough for windows 8.1 qemu slave

I have a windows 8.1 vm running via kvm/qemu on an ubuntu 14.04 touchscreen laptop host. I can pass use my touchscreen as a regular mouse pointer if i pass through -usb -usbdevice tablet in the qemu ...
0
votes
0answers
45 views

How can I have different ip address on qemu vm with wireless host machine?

Because wireless doesn't support network bridge, I can't use bridged networking like virtualbox do. I'm running on arch linux with NetworkManager managing connection. Almost every possible way that I ...
0
votes
0answers
89 views

Linux (Mint 17.1) Video card's (R9 270x) sound is claimed by pci stub but the GPU isn't

So I'm trying to setup a gaming VM with on Linux Mint via KVM and VFIO. I've added the ID's of both the sound and the actual GPU but only the sound is getting claimed by stub. When I run dmesg | grep ...
0
votes
0answers
53 views

KVM live migration i/o error

I have three Ubuntu Server 14.04 trusty with KVM. Two of them are HP servers and one is Dell. Both brands run fine the KVM virtual servers, and I can do live migration between the HPs. But I get I/O ...
0
votes
0answers
13 views

KVM accessibility from host machine

We have a KVM Host machine running multiple VMs. I am now tasked to create an instance with very sensitive data. Setting firewall and other OS specific settings is not the problem. Question is: can, ...
0
votes
0answers
63 views

Unable to get the Full screen in KVM

I installed CentOS 6.4 in KVM (Kernel-based Virtual Machine), My base machine is Scientific Linux 6.4. I am unable to get the full screen in KVM, In virt-manager if I select full screen also both ...
0
votes
0answers
159 views

Control fan speed under linux without nvidia drivers

I have quemu-kvm configuration like this - IGP on host (linux) and Nvidia on guest (windows). I blacklist nvidia drivers under linux (arch dist.). Is there a way to set GPU fan speed under linux ...
0
votes
0answers
114 views

No outgoing traffic through passthrough network adapter (NIC ) on KVM guest

I have KVM host operated under CentOS 7 and guest with Windows 7 on it. Host NIC is passed to the guest as PCI device passthrough (not bridge, not NAT). Guest detects the NIC (drivers, cable plug, ...
0
votes
0answers
82 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 ...
0
votes
0answers
130 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 ...
0
votes
0answers
150 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 ...
0
votes
0answers
119 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 ...
0
votes
0answers
331 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 ...
0
votes
0answers
115 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 ...
0
votes
0answers
105 views

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), ...
0
votes
0answers
118 views

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 ...
0
votes
0answers
636 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 ...
0
votes
0answers
501 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, ...