The Xen® Hypervisor, is an open source virtualization platform that powers the world's largest clouds in production and is the foundation of many commercial products.

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How to boot xen guest with efi?

I am using Xen 4.4. My dom0 is the latest Gentoo, with grub-EFI booting. I want to create a Windows hvm. Currently, the vm I created can boot from an ISO and install windows. But if I point the disk ...
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1answer
42 views

I/O Crash Error in XenServer VM. What to do?

I just installed XenServer 6.2 and installed XenCenter in my own Windows and everything were set ok. I have 2TB 5400rpm SATA Hard Disk Drive, and I am trying to run 32 VMs at once using Xen ...
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7 views

What is the best Xen Hypervisor setup for my system [closed]

I am new to XEN, I have a Asus X99 deluxe, i7-5820K 16gb DDR4 and I want to run VM's just for personal use. I would like to know what distro/setup should I use, I know a bit of Debian and Ubuntu but I ...
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3 views

How to emulate a usb device from usb dd image for Xen HVM?

I want to use Xen HVM to create a windows VM. My installation file is on a USB disk DD dump. I could just dump the image back to a usb disk and pass the usb device to my vm, but it takes a long time. ...
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19 views

grub2-mkconfig on Gentoo cannot create xen entry

My Gentoo system is up to date, and I have added xen use flag to grub2 package. I saw there is a /etc/grub.d/20_linux_xen file. But when I ran grub2-mkconfig, no xen entry is created. According to the ...
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12 views

Xen with dual-graphic card on Dell laptop?

My Dell laptop has dual graphic card. It is really difficult to configure the discrete card to work with Linux, and I don't want to use things like bumblebee. So I am thinking if I can use VGA ...
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17 views

Is it harder to configure PCIe passtrough with a motherboard equiped with a PLX bridge?

im about to make my next computer, but the last piece i need to choose is the motherboard. Most of the high end motherboard are equiped with PLX chip, to get more x16 PCIe. I want to use xen, to run ...
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29 views

Xen on ARM Cortex A9

I see that there is a version of the Xen hypervisor for ARM CPUs. However, most ARM CPUs appear not to have virtualisation extensions (and are not otherwise efficiently virtualisable). Hence I looked ...
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7 views

Xen 4.2.xx compatibility with Fedora 17

I know that Fedora 17 ships with Xen 4.1.xx, but is it compatible with Xen 4.2.xx and later versions? I have searched online and found nothing either supporting or denying the fact. If it is ...
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22 views

Xen E820 memory map for domU kernels

How does xen handle E820 memory map for domU kernels? In my specific problem I am trying to map Non-Volatile RAM to domU kernels. The dom0 memory map returns the following relevant parts. ...
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39 views

XENSERVER: setup a routed network

I have a Ubuntu Server which supposed to be host to 3 virtual machines (Windows 7 Pro). The questions is: How do I set them so up that the other the virtual computers have the ip address in the same ...
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1answer
69 views

Can I avoid losing three IPs per network on a bridged Xen networking setup?

About a month ago, I asked this question on Superuser. The answer given there certainly works, but I've run into an issue I haven't thought of before. The setup I had running (based on the previously ...
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1answer
58 views

Xen reports that “Host does not support virtualization type 'hvm'”

[root@www www]# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Pentium(R) Dual-Core CPU E5500 @ 2.80GHz stepping : 10 cpu MHz ...
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1answer
41 views

Command parameter autocompletion like “xe”

I noticed today, when working with XenServer's CLI, that the xe command allows autocompletion with the 'tab' character not only for files, but for parameters too! For example if I write xe vm-[tab] ...
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26 views

Shrink XenServer partitions manually to create multiboot virtualization test server

I would like to test XenServer features in comparison to Xen(xl) and Xen(xm). I already have a dualboot Xen Host for that task, but would like to add a XenServer partition additinally now. As I found ...
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49 views

Citrix Xen Server VDI does not exist after VM reboots

I installed Citrix Xen Server on machine and Xen Center console on my windows box. I made some virtual machines on the server but for some reason when I reboot the VM, it would become unavailable. I ...
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55 views

Measurable impact of difference between type-1 and type-2 hypervisor

Is there something I can do to or run on a VM or (in the case of a type-2 hypervisor) that would demonstrate, objectively, that there is a difference between type-1 and type-2 hypervisors? I assume ...
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49 views

How is a wireless network presented to an operating system?

I am wondering how is a wireless network presented to an operating system. If I'm not mistaken, Wi-Fi (802.11) is only the Physical layer of the OSI model. This means that, one layer up, we're ...
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1answer
47 views

Can I run my desktop on a bare-metal VM layer to swap between operating systems?

I'm running CentOS as my primary desktop, but I need to be able to use Windows and Ubuntu from time to time to test things on those. As I don't have any extra hardware immediately available, I could ...
2
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1answer
203 views

How should I configure Xen to allow multiple different IP ranges in the domUs?

I'm trying to get Xen running in a setup where the domUs have a completely different IP than the dom0 (not in the same network range). This answer got everything working within the same /24 range, but ...
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1answer
113 views

How should I configure my interfaces with multiple IPs for Xen to use?

I have a server which has a number of IPs assigned to it. I would like to set it up as a Xen hypervisor so that each VM has its own dedicated IP. The way I have my multiple IPs setup right now is: ...
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17 views

Virtual Windows on top of hidden linux

My end goal is to have a machine that is running Linux but automatically starts up a virtualization application (Xen looks the best right now) and boots Windows. At a glance I know this will require ...
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15 views

Unable to browse to certain sites

I have a few guests on a XenServer host, and some sites ( both SSL and non SSL ) cannot be accessed by the XenHost and the Guests. Other machines on the same network can access these sites just fine, ...
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47 views

xen tool xl not available

I am running debian wheezy I have already run apt-get install xen-tools $ sudo apt-get install xen-tools sudo: unable to resolve host wheezy-xen Reading package lists... Done Building dependency ...
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1answer
68 views

Xen and Windows 7 domU, can't find CD/DVD drivers

Simple question. When installing Windows 7 under Xen as domU with Fedora 20 dom0, it stops before installing asking for the CD/DVD drivers. I just can't get it past this point. KVM does it too through ...
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86 views

XenServer 6.2 guest networking

None of VMs I tried to install can't reach internet. I have Xensever 6.2 installed on a server with single NIC, which can be accessed via 2 public IPs. XenServer can ping google.com and seems to be ...
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1answer
37 views

Which XEN IOMMU features are min needed for VGA passthru?

To run HVM (Hardware-assisted virtualization) the CPU must support this by having IO-MMU feature (Intel calls this VT-X). I have an Intel Core 2 Quad Q8400 CPU which support the virutalization ...
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82 views

Xen PV machine fails to connect to console

I recently installed a PV virtual machine under xen 4.4. I'm using XL toolstack. below is the configuration file of the PV machine. kernel = "/var/lib/xen/images/ubuntu-netboot/vmlinuz" ramdisk = ...
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38 views

Xen credit scheduler, equal distribution?

Does Xen's credit scheduler assign an equal fraction of processor resources to each guest OS? I know the distrobution can be altered with weights, but, by default, is it equal? ...
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47 views

Using Xen paravirtualization, run Windows in Dom0

This documentation describes how Xen is accomodating Windows by virtue of 'Xen Windows GpIPv'. http://wiki.xenproject.org/wiki/XenWindowsGplPv But what I can't determine is wether or not, by dint of ...
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53 views

virsh - Failed to detach disk

I'm getting the following error when trying to detach a disk in virsh: virsh # detach-disk svr21 xvdb --persistent error: Failed to detach disk error: Requested operation is not valid: Xm driver only ...
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518 views

Xen fails creating VMs using xl toolstack

Ever since xen 4.4 has been rendered obsolete; I tried to switch from xm toolstack to xl. This wasn't really turn to be a simple task though. I've been getting errors, libxl wasn't able to work around ...
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1answer
26 views

networking in virtualization

I have a redhat9 as guest and a fedora18 as host. the guest is connected to network but I'm not sure through bridge or nat. I just know that other machines can't ssh or ping it. because they are not ...
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102 views

Private network configuration for Xen guest operation systems

I've been working around with Xen. I managed to bring up 2 virtual machines; 1: Windows Server 2008, 2: Ubuntu desktop 12.04 LTS. Here is my question. I created a bridge called sw0(up and running) ...
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3answers
1k views

bridge does not forwarding packets centos

I am using CentOS 6.5 64 and use xen to create a virtual machine (CentOS) ifconfig [root@CentOS ~]# ifconfig eth0 Link encap:Ethernet HWaddr 08:00:27:54:B3:FA inet6 addr: ...
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1answer
412 views

How do I get Xen domU guests to have internet access?

How do I get Xen domU guests to have internet access? What tools can I use to diagnose the problem? Are there log files I can examine? (I'm new linux and networking and VMs. Please execuse me if I ...
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0answers
83 views

Archipel / Xen Orchestra

I'm hoping you can help me to get my head around this! We want to start using virtualisation. We intend to rent a large server in a datacentre and use this. I was excited to see that XenServer is ...
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1answer
35 views

Can I give the partitions in my xen guests friendly names?

I've got a bunch of LVM logical volumes on a machine running Xen, with descriptive names like "photos". When I attach them to a Xen guest, the standard is to give them unmemorable names like xvda1, ...
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1answer
59 views

Xen: graphics passthrough. How it looks from the host?

I'm starting to think to install Xen as a main hypervisor; and I need to have a single Win7 client with access to (primary, single) physical GPU with accelerated graphics support. Now, am I right ...
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69 views

Ubuntu XenServer / XenCenter brp5p1 vs xenbr0 bridges

I'm new to virtualization. Looking to put my toe in the water with a very simple Xen setup. I roughly followed the recipe here using: ubutu 13.10 dom0 Xen 4.3.0 Xen Center 6.2 So far, everything ...
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32 views

Is it possible to a Xen guest to automatically grow or shrink (ballooning) its own assigned memory?

I know it is possible to change the amount of memory allocated to a Xen PVM guest on-the-fly, but this must be done outside the guest, at dom0. Is it possible to configure the PVM guest to ...
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1answer
926 views

Difference between Xen hypervisor and Xen server

Like title suggests...something is not very clear to me. I am used to virtualbox and vmware, now I'd like to use xen but...I find two different websites, hypervisor and server. What's the difference? ...
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17 views

XCP guest migration to another host

I have a question regarding XCP guest migration, I want to migrate guest systems between two different physical machines in different locations. I have found this article which relates to migration of ...
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72 views

Is it possible to use bare-metal XenServer's virtual machines on the same computer and how?

Can I install XenServer on a machine as a bare-metal installation and create and use its virtual machines on the same machine or I need to use the VMs with XenClient over a network connection? I mean ...
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92 views

How do different virtual machines handle CPU scheduling?

When you give a guest multiple virtual CPUs (vCPU) the virtual machine has to assign them to physical CPUs (pCPU). I'm can't find any info on how most VMs handle this. There are 2 broad categories: ...
3
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1answer
80 views

Mount volume group(OnApp)

I am attempting to get OnApp setup in a lab using the following documents: OnApp Installation Guide I am one step away from success and to my knowledge based on the information given and my(limited) ...
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0answers
93 views

How to configure Open vSwitch bridge to make all ports trunked?

I am trying to configure open vSwitch on a XenServer install to trunk all ports with VLANs. How would I make it so that whenever a new VM is added the port that is connected to it is automatically ...
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82 views

Two different GPUs, one [virtual] monitor on windows 7

i have two GPUs on my windows 7 guest configuration, one is virtual, but looks like a real one for windows (Cirrus VGA from qemu/XEN setup), and one is fully real, Radeon HD7870, which is dedicated ...
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105 views

Customizing XenServer partitions

I wanted to install XenServer onto a hard disk with existing data on it, by customizing the partitioning and LVM volumes, but I found that the Anaconda installer does not seem to provide any options ...
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141 views

Running Xen with Virtualbox

I am researching building a new machine for software development. My requirements: Linux base OS Windows 7 VM for Photoshop CS5 Various Linux VMs for DB server, application server, etc No gaming ...