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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XEN boot error on Ubuntu Server 12.04

I am trying to boot to xen-hypervisor-4.1-amd64 package following the guide from official Ubuntu website, But whenever i reboot and try to boot into XEN (holding shift on grub and choosing xen ) i get ...
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27 views

Where are Xen guest config files stored?

I'm new to Xen stuff. I have a XenServer 6.5 running, with XenCenter and a Debian installed as a PV VM. I'm trying to setup the extra security now so I don't have to learn about it after I've been ...
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23 views

Backup Xen VM without snapshot

I have a VM in a small XenServer 6.2 and I would like to back-up it before performing an upgrade. The current storage doesn't have enough space to do a snapshot, so I cannot export it. Is there any ...
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1answer
45 views

Can I add a Hypervisor to my Windows Desktop and still use the consoles?

I am running Windows 7 Ultimate (for business) and would like to slip Xen or free ESXi (vSphere Hypervisor) in between my current Windows image, and the hardware layer, and still be able to use my ...
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1answer
56 views

Relationship between OpenStack and Xen

Xen is an open source virtualization platform that allows you to install a bare metal hypervisor on a machine, which turns it into a host for other guest VMs. I can't really understand what ...
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12 views

Xen Virtualization Types by Example

Please note: I first tried searching for an SE site where virtualization-centric questions were directly on topic. I found Virtualization, Cloud and Grid Computing, but to my surprise and dismay, see ...
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19 views

How to “sandbox boot” an operating system in a Hypervisor without a full blown host OS?

I was wondering how I could setup a Hypervisor environment that boots an operating system in in a sandboxed¹ mode, without relying on a (full blown) host (Dom0) operating system. The target ...
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78 views

Getting a 4TB USB drive (4k native sector size) to work with Xen and Windows 2008 guest

I am trying to get a new 4TB Seagate USB drive to work with Xen 6.2 and a Windows 2008 R2 virtual guest. The Xen host sees the drive fine, fdisk -l lists it with the correct capacity, etc. I can ...
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1answer
63 views

How do I get the system-serial-number for Xen Server?

I would like to find out how could I be able to retrieve the system-serial-number of virtual machines installed on Citrix XenServer. I had referred to ...
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2answers
76 views

Transfer VM without shutting it down?

Is it possible to transfer a VirtualBox VM from one server to another without shutting it down? Is there any way to achive this? Does this technology have a name to identify it? As far as I know Xen ...
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55 views

XEN HVM: GUI rendering artifacts on VNC

I'm facing a strange issue running Xubuntu (tried Ubuntu also, same problem with Unity, but no problem with Metacity) on Xen HVM while connecting to it via XEN's builtin VNC. Some parts of the user ...
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57 views

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
212 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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61 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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29 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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34 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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75 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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15 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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42 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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62 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
130 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
120 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
51 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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64 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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66 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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89 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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56 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
86 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
346 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
183 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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20 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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17 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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68 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
109 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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102 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
77 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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121 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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44 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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137 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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139 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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730 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
29 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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177 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
2k 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
682 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 ...
2
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0answers
110 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
41 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
77 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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1answer
3k 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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127 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 ...