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

0
votes
0answers
10 views

Xen hypervisor setup | Enthusiast | Access VM on host | Sugesstions

Planning to use Xen in a small project to learn about virtualisation, and have selected CentOS as host (previous attempts with Debian failed). Would be installing Xen on a Laptop (ASUS X550LD). Is it ...
1
vote
1answer
3k views

Xenserver 6.2 has trouble booting Linux live discs

I recently installed Xencenter 6.2. I was able to install and configure a Windows VM. However, whenever I boot different Linux distros after the boot menu (syslinux or whatever) the disc always locks ...
0
votes
0answers
6 views

Handling /etc/fstab when upgrading linode from Xen to KVM?

I have a linode that is currently on one of Linode's Xen servers. I see that I am eligible to upgrade to a KVM linode. One thing that concerns me is that Linode's upgrade guide says block devices ...
1
vote
0answers
17 views

Cannot boot migrated Ubuntu VM on fresh XenServer install

It's been a tough couple of days. My server configuration went crazy after a power outage, and now I'm trying to get my VMs back up and running. I reinstalled XenServer to a new SSD in the same box. ...
1
vote
0answers
44 views

really check if password has been changed

On a non-critical server (Debian 7, kernel 3.2.65 x86_64) running under a Xen VM framework, it's a system I log on once a month under "user1". Today I: - cannot log as user1 via ssh+password - can ...
1
vote
1answer
150 views

Xen Hypervisor with linux host and Win7 guest - gaming

I'm a bit of a newbie in the linux community, and especially in virtualization. I discarded Windows a while back and moved to linux, mainly because my university uses Ubuntu on their computers, and ...
2
votes
2answers
191 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
0answers
7 views

is it possible to paravirtualize 32 bit linux kernel on x64 xen hypervisor

If I have a 64 bit Xen kernel (hypervisor) can I run paravirtualized x86 linux guests or does it need to be fully virtualized, just like windows? I would like to install all small memory guests as ...
0
votes
0answers
57 views

Backup Windows 2008 R2 Server to a ISO file

I want to virtualize a Windows 2008 R2 Server system for testing. At the moment the system in question is installed in a server and I want to make a copy of everything to an ISO file to then ...
1
vote
1answer
41 views

Is it possible to stealthy boot into a Xen virtual machine? i.e. so no one sees Xen

Since Xen is a type-1 hypervisor and not a type-2, is it possible to boot into a Xen virtual machine seamlessly as if it there was no hypervisor underneath it? I'm talking about it being such that all ...
2
votes
3answers
3k views

How to tell if I am on a XEN or KVM Server?

Is there a way to tell if I am on a XEN or KVM linux server? Reason I asked is nothing is on top yet I am seeing load averages high well after I do tasks and I am getting hangs/spikes when I do simple ...
0
votes
1answer
171 views

Script to monitor realtime CPU & Bandwidth usage in xen live migration

I need to write a script (bash or python or ??) to perform live migration of a VM in xen, and to simultaneously log and extract the CPU & bandwidth usage of the Domain-0 AND write the output into ...
0
votes
1answer
29 views

Setting up OpenStack environment on virtual machines

I am learning OpenStack for almost a week. After reading most of OpenStack wiki, my mind still blurry at some point. However it is said OpenStack nodes could be installed on virtual machines (VMs) for ...
0
votes
0answers
20 views

Memory not releasing after shutting down vm in Xen-4.5

I installed Xen-4.5.0 on a server with CentOS 6.5(v3.2.30 kernel). All works well except when I shutdown a vm, then xl li shows that the vm's memory is not released and physical memory becomes less ...
3
votes
2answers
764 views

Xen on bare metal, multiple guest OSes — is 3D acceleration on each OS possible?

I have a desktop PC (Athlon 64, 2 cores). I want: to run Windows (Vista most likely) with full 3D support for video games and Youtube, to also run Debian GNU/Linux with 3D support for work, maybe ...
3
votes
0answers
123 views

Xen VPS with 2 IPs from 2 different subnets

I am new to Xen and I am trying to understand how to add 2 different IPs on the same guest VPS. First, I am going to explain my node setup, which is a physical server with 32GB RAM and 2 NICs on it. ...
1
vote
0answers
172 views

KVM or Xen for VGA Pass-through

I'm in the planning phase of setting up a personal virtualization server. One of the virtual machines I want to setup is a Windows box with Steam. Ideally, I want to stream higher-end games to my ...
1
vote
0answers
27 views

Export from xen to azure

I want to move a Ubuntu Server VM from Xen to Azure Cloud. I exported the VM to a xva format. I converted it to ovf using Citrix XenConvertor and I obtained the vhd file. In Azure I created a disk ...
4
votes
2answers
5k views

Is it possible to run windows under Paravirtualized Xen?

Is it possible to run windows under paravirtualized xen? Linux is possible because you can modify it. If you cannot run windows then what are the other alternatives to improve I/O performance?
0
votes
1answer
190 views

VPN remote access to lan

I am rather new to this. I have done some it/cyber defense competitions in the past and have some knowledge. I am trying to set up a group of about 5-6 xenserver boxes. I want to use xencenter to ...
0
votes
0answers
22 views

Can Windows run a Xen DomU guest image?

I have a number of XEN guest Domu images. Can I run these directly on Windows?
2
votes
1answer
108 views

How to get cpu cores utilizations in xen?

I have installed xen as hypervisor and there are dom0 and some paravirtualized machins as domu VMs on it. I know xentop is used for checking the performance of system and virtual machines, But, it ...
3
votes
0answers
175 views

How do different virtual machines handle CPU scheduling? [closed]

When you give a guest OS multiple virtual CPUs (vCPU), the virtual machine has to assign them to physical CPUs (pCPU). I can't find any info on how most VMs handle this. There are 2 broad categories: ...
0
votes
1answer
215 views

Can KVM run on top of host OS?

I was interested in experimenting with Xen until I discovered that it has to be installed bare metal. Hence, if I have a Linux machine and want to use it to run a Xen hypervisor, I have to install the ...
0
votes
0answers
146 views

Obtain list of all VMs on Xen server with tags

I am trying to compile a list of VMs across our 12 Xen Servers. We use the 'tag' functionality extensively and I would like for the tags to be exported along with the VM names. E.g. Xen Server ...
0
votes
0answers
43 views

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 ...
1
vote
0answers
217 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 ...
1
vote
0answers
69 views

In XEN how can I check if guest is HVM or PVH?

Xen supports various visualizations e.g. para virtualizastion and full hardware visualization. How can I know the type of visualization for running guest?
1
vote
1answer
267 views

Why I can boot various kerel versions but not XEN kernel in grub2

I have successfully compiled XEN usigng following steps: wget http://bits.xensource.com/oss-xen/release/4.4.1/xen-4.4.1.tar.gz tar xzvf xen-4.4.1.tar.gz cd ./xen-4.4.1 export ...
0
votes
0answers
39 views

XEN Guest cannot open display error

My setup is : [XEN - dom0] installed directly on hardware [ubuntu 12.04.5 server x64bit] , using it on CLI Mode - no GUI installed [domU - guest] HVM guest created via configuration file, I ...
2
votes
1answer
7k 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
19 views

Windows 8 and W2012 Reboot Resets Network

I have Windows 8.1 and Windows Server 2012 running in separate virtual machines on an Xen server. I have had a problem for a while on the 2012 machine, more recent on the W8 machine where every time I ...
3
votes
4answers
4k 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
0answers
137 views

Xen Bridge Configuration do not bridge eth1 to xenbr0

I am new on Para-Virtualization. I used Xen Beginners Guide to install Xen and configure dom0 it works correctly but i cant configured bridge network for domU. I created debian image like that. ...
2
votes
0answers
313 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 ...
0
votes
0answers
89 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 ...
0
votes
1answer
109 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 ...
0
votes
1answer
231 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 ...
0
votes
1answer
271 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 ...
0
votes
0answers
72 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 ...
1
vote
0answers
223 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 ...
0
votes
2answers
2k views

How to install Xen (XCP-XAPI) on Ubuntu 12.04 LTS Server?

How to install Xen (XCP-XAPI) on Ubuntu 12.04 LTS Server in a cross platform approach (Windows and Linux users)? I need a complete and comprehensive guide on the subject covering all steps necessary ...
4
votes
2answers
154 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 ...
1
vote
1answer
896 views

'skb rides the rocket' in a Xen guest

I've just set up Ubuntu 13.10 server as a VM on my Ubuntu/Xen server, and I'm getting these weird lines in my guest's syslog. Nov 12 10:26:32 human kernel: [130782.315333] xennet: skb rides the ...
1
vote
1answer
483 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 ...
1
vote
2answers
1k views

Xen: Is it possible to run an installed Windows inside Xen?

Is it possible to run an already-installed Windows inside Xen, similar to how Parallels Desktop and VMware Fusion can run a bootcamp Windows as a VM on Mac OS? My plan is, in a few weeks when Windows ...
1
vote
0answers
102 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 ...
1
vote
0answers
266 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 ...
1
vote
0answers
200 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 ...
1
vote
1answer
252 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 ...