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.

learn more… | top users | synonyms

1
vote
0answers
11 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 ...
0
votes
0answers
18 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 ...
1
vote
1answer
71 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 ...
2
votes
0answers
26 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 ...
0
votes
0answers
13 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. ...
0
votes
0answers
35 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 ...
0
votes
0answers
16 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 ...
0
votes
0answers
21 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 ...
0
votes
0answers
51 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 ...
0
votes
0answers
9 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 ...
0
votes
0answers
26 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. ...
0
votes
0answers
40 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 ...
1
vote
1answer
86 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 ...
-1
votes
1answer
86 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 ...
1
vote
1answer
46 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] ...
0
votes
0answers
34 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 ...
0
votes
0answers
52 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 ...
0
votes
0answers
70 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 ...
1
vote
0answers
50 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 ...
0
votes
1answer
57 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
votes
1answer
241 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 ...
1
vote
1answer
137 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: ...
0
votes
0answers
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 ...
2
votes
0answers
16 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, ...
0
votes
0answers
58 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 ...
0
votes
1answer
81 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 ...
0
votes
0answers
91 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 ...
0
votes
1answer
48 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 ...
0
votes
0answers
91 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 = ...
0
votes
0answers
39 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? ...
0
votes
0answers
65 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 ...
0
votes
0answers
71 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 ...
0
votes
0answers
568 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 ...
-1
votes
1answer
27 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 ...
0
votes
0answers
129 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) ...
3
votes
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: ...
1
vote
1answer
487 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
votes
0answers
88 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 ...
0
votes
1answer
36 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, ...
0
votes
1answer
69 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 ...
0
votes
0answers
81 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 ...
0
votes
0answers
36 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 ...
1
vote
1answer
1k 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? ...
0
votes
0answers
18 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 ...
1
vote
0answers
81 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 ...
2
votes
0answers
96 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
votes
1answer
87 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) ...
1
vote
0answers
97 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 ...
1
vote
0answers
88 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 ...
1
vote
0answers
119 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 ...