Xen is a hypervisor based virtualization. It supports x86, AMD64, IA64, ARM and other CPU types, and Linux, Windows, Solaris and *BSD guest operating systems.

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Issues with Xen Kernel and Debian

My Xen installation has gone weird on me and I am trying to get back to normal. I overflowed the base partition and in my haste to delete unused files I think I deleted something important, so now ...
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62 views

Xen domU sees 35MB less than assigned

I am using ubuntu precise 12.04 and I am booting a paravirtualized ubuntu 12.04 domU, all being 64 bits. The VM has memory=1024 assigned and xentop at the host correctly shows 1024MB, but htop in the ...
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241 views

Migrate Windows XP to Xen HVM

I want to migrate a Windows XP machine to a Xen 4.1 HVM virtual machine with Windows XP installed (the custom software will only work with XP). The software is custom made, and needs to be migrated ...
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1answer
395 views

Use SSHFS on XenServer 6.1

On Xen Server 6.1, to backup my VMs, I use a script based on the following tools: xe vm-list to build a list of the VMs to backup xe vm-snapshot to take a snapshot of the VMs xe template-param-set ...
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2answers
2k views

CentOS 6 Xen guest fails to boot after 'yum update'. Kernel?

I Seem to be having an issue with a Xen guest not booting after a yum update. DomU Configuration: #kernel = '/boot/solus-vmlinuz' #ramdisk = '/boot/solus-initrd.img' bootloader = ...
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1answer
64 views

Always use Xen? [closed]

I'm installing the usual bunch of servers for general office stuff, a mixture of Windows/Sharepoint and Linux Since none of these need direct access to the hardware, fancy graphics or are really ...
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1answer
387 views

Unable to run libvirt with xen on Centos 6. Fails with ioctl 3166208

As per subject. Xen 4.2.1 libvirt 0.10.2-18.el6 Linux gatto.example.com 3.8.3-1.el6xen.x86_64 #1 SMP Sat Mar 16 15:16:57 EST 2013 x86_64 x86_64 x86_64 GNU/Linux I followed the instructions given ...
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1answer
29 views

start xen vm using cli, without creating configuration files

Is it possible to start virtal machine without creating configuration files? Only by specifying all configuration parameters through command line, like QEMU. Can you give some references or examples?
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1answer
290 views

Xen XCP: Route failover IP to Guest

I have two hosts, which I installed XCP 1.6 on. The machines are hosted at Hetzner. Each host currently has a public IP and an additional IP assigned. There is a guest on each of the hosts which ...
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1answer
448 views

Cannot give more than 32GB of RAM to a Debian squeeze under Xen 6.1

Under XEN 6.1, I tried to give a debian squeeze VM more than 32GB of RAM. But the Xen Center gave me this: "The amount of physical memory allocated to this VM is greater than the total memory of its ...
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1answer
485 views

Dom0 not forwarding to DomU

The situation: DomU: Debian SID /etc/network/interfaces auto eth0 iface eth0 inet static address x.x.x.55 gateway x.x.x.49 netmask 255.255.255.255 pointopoint x.x.x.49 Ping DomU -> x.x.x.49 ...
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2answers
579 views

Why does my server boot the old debian kernel?

I got a vServer with Debian installed (important because I have no idea of how Debian was installed and/or built). Output of ~# uname -r: 2.6.26-2-xen-amd64. After execution of (first some other ...
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3answers
367 views

hypervisor performance when running from USB

Just wondering if there is any performance impact / degradation when running from USB key I'm planning on using KVM or xen, since my servers doesn't have on board raid controller, I'm planning on ...
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1answer
238 views

Network Script broken with recent XEN update in Debian Squeeze

Today I applied the most recent xen update for Debian Squeeze from [Security]. The package version is now 4.0.1-5.8. After that, xend began to behave weird (aka. wrong): root@root:~# sudo service ...
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3answers
117 views

Is there any server virtualization software supports subdomains? [closed]

I installed openvz in my server but to create more virtual machines I need more than one ip address. But my service provider can only give one ip address for my server. Is there any software that ...
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4answers
2k views

Boot Clonezilla with XenServer VM

I'm currently trying to move a RHEL based server to Citrix XenServer (5.6) VM. My plan was to use Clonezilla LIVE CD, which i have had good suceess with to clone physical to physical before. So i ...
2
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1answer
382 views

Why is LVS dropping packets?

I am currently trying to get down to the core of a problem where my LVS-director seems to drop a packet coming from a client from time to time. We have this problem on our production systems and can ...
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2answers
732 views

Changing XEN VM configuration

What is the correct way to update a XEN VM configuration? In this case I want a specific domain to stop using /dev/emcpowerg and use /dev/emcpowerh in stead. I have ensured that the two devices have ...
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3answers
522 views

Why is Qemu Virtual CPU on my kvm guests [closed]

can some one please clarify this. I am new to kvm and created two guest instances one linux and one windows. On both Guests, CPU is showing as QEMU virtual CPU,why is it so? if kvm utilizes ...
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1answer
688 views

Install Ubuntu Desktop from ISO on XEN

I've got XEN Hypervisor running on Debian as my base system. I understand VNC and conceptually installing PV based systems on my hypervisor but I'm getting stuck starting from scratch on a ISO-based ...
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1answer
343 views

How do I change a xen vm storage from hda to sda?

I am trying to import an ovf appliance created for VMWare into our Xen infrastructure. The imported image uses hda rather than sda, and the appliance has some hard references that appear to be ...
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1answer
548 views

I can't mount a LVM snapshot on a XEN host

I'd like to backup my XEN VMs by copying-rsyncing a LVM snapshot. I'm trying to mount a snapshot that contains a XEN guest's virtual disk (ext4). Below are all the steps I follow. I can't mount the ...
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1answer
88 views

How to exit xen domu when using linux terminal

I usually use putty to connect on a xen domus. To exit domus after using "xm console", it's ctrl + 5 But how can I exit vm console on linux terminal?
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1answer
163 views

Best way to move one VPS from one provider to another? [closed]

I have a VPS server (Xen based) purchased from one provider, now I want to move the server to another (kvm based) What are the best way to do so? I really don't want to re-install the whole system, ...
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57 views

Domus Memory Used Issue With Xen On CentOS

Anyone know why I'm receiving this error? I compiled latest libvirt from source, I also tried with various rpm. I would like to get memory used by domus and it looks like it's not working with Xen 3 ...
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1answer
442 views

How do I transfer a Windows XP/Vista/7 partition into Xen?

Good morning Server Fault, I have several hard disks with installations of Windows XP, Vista, and 7. I do not want to (or rather can no longer) reinstall these Windows installations so I want to ...
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1answer
237 views

How to change upstart order, Start network after fstab?

In ubuntu 12.04, I want to change order; I want to mount all from fstab before running network (i have /etc/network/interfaces on other partition). How to do it? This is my fstab: # <file ...
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1answer
211 views

mkfs.xfs on EBS volume as non-root user on AWS

I've set up a udev rule to attach a particular EBS volume as owned by a user, and this works. Here are the permissions on the device node after the volume has been attached: brw-rw---- 1 myuser ...
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1answer
106 views

Xen DomU (Guest) OS on different hard disk to Dom0?

I have followed the guide provided on the Ubuntu Community Documentation for Xen and I have successfully installed eight guest OS's on a different machine. In the guide, I use the command: sudo ...
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1answer
113 views

How can I configure a Xen image to run on EC2 with different drive names?

I'm in the process of creating a number of Amazon Machine Images (AMIs) that will be uploaded and run on the basis of our Xen images. However, I'm running into problems with some platforms where the ...
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0answers
62 views

OSPF on XEN host running several VMs

Is it possible to set OSPFs areas in a XEN environment to setup a virtual cluster? Main intention is to avoid a external router since all VMs will run inside the same machine.
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1answer
286 views

Pacemaker cluster: Xen RA vs libvirt RA

Building a pacemaker cluster to manage Xen domU virtual machines the sysadm can choose between to different resource agents: the dedicated Xen resource agent (ocf:heartbeat:Xen) the libvirt based ...
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83 views

Two Xen hosts with a crossover between and failover public IP between them both. configuration?

I have two servers with Ganeti installed (Xen) I want to be able to migrate the instance between the two servers so the instance's network configuration needs to be host agnostic. The datacenter that ...
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1answer
2k views

How to migrate from Xen to XCP?

I am running a Ubuntu Server with Xen 4.1 installed. All VMs are running on that server with one or more virtual disks stored in qcow2 format. These VMs are managed by 'xl' toolstack. One VM is ...
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1answer
523 views

How can the root password on FreeBSD 9.1 be changed for the system for the purposes of root logins?

I've never encountered this before when using FreeBSD, but I recently got a new BSD VPS, and when I logged in as a wheel user and su to root, I used "passwd" to change the root password, but this only ...
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1answer
236 views

Xen: iSCSI initiator in dom0 VS in domU with BCM5709 ethernet cards

In the future we'll move from local storage for our VMs to an iSCSI-based solution. Our server vendor supports Broadcom NetXtreme II 5709 cards with dual gigabit ports and TOE + iSCSI acceleration. ...
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2answers
864 views

XEN kernel shows less memory 32g

I have installed Oracle Enterprise Linux 64bit on the server with 64g of RAM. But the system detects just 32b of memory, here are the details: [root@oracle-node2 ~]# uname -a Linux ...
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2answers
2k views

Xen Paravirtualized Guest - Invalid Kernel

I have set up xen on ubuntu server 12.04 LTS. I have tried installing a guest to an lvm I created called xen-lvm The virt-install script: sudo virt-install \ --name client2-ubuntu-server \ --ram 512 ...
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215 views

Resize LVM partition DomU Windows

I have a xen DomU running with Windows Server 2003 on a lvm partition has 10GB but i need more. if a Linux partition, I would do: # umount # lvextend -L +10G /dev/<VG>/<LV> # resize2fs ...
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1answer
84 views

Outbound traffic from domU shows dom0 IP address

I am having a problem with Xen where all outbound traffic from domU's are showing up as if it was coming from the dom0. Traffic passes both ways without a problem. I do not have NAT enabled. I am ...
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1answer
84 views

saving loaded kernel modules

I did the following in command line: modprobe ipt_LOG modprobe ipt_multiport modprobe ipt_state modprobe ipt_limit modprobe ipt_recent modprobe ipt_owner modprobe iptable_nat modprobe tun/tap ...
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51 views

enabling modules for a kernel

I have a KVM/XEN VPS and would like to enable the following modules: ipt_LOG ipt_multiport ipt_state ipt_limit ipt_recent ipt_owner iptable_nat tun/tap iptable_nat ipt_MASQUERADE ipt_POSTROUTING PPTP ...
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1answer
1k views

How access a VM console in XCP?

I installed xcp-xapi package in Ubuntu 12.10. I have already created a PV VM in XenCenter, but I cannot access it's console -- when I choose the Console tab in XenCenter, I just got a blank page. I ...
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1answer
928 views

xen Dom0 network setup on ubuntu 12.04.1 LTS

I read a lot of tutorials (or at least try to be) but none is able to explain well how to configure networks for xen host. my Dom0 has two interfaces eth0 (real interfaces) and virbr0 (I guess was ...
3
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1answer
860 views

AppArmor - root: “You do not have enough privilege to read the profile set.”

I'm trying to use AppArmor on a remote hosted Xen server with a custom built kernel. AppArmor appears to be running, but not correctly. For example if I run the following command as root: # ...
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0answers
84 views

how to setup VM with debootstrap

I'm having problems to configure a virtual machine with xen server. following tutorial I made this steps: make the lvm partitions (root, swap) on my host and format mount root partition on /mnt ...
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1answer
236 views

Thin clients over WAN - Capacity planning [duplicate]

Possible Duplicate: Can you help me with my capacity planning? How reliable is it to run thin clients such as Citrix XenDesktop over the WAN. I am designing an IT solution where the client ...
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2answers
193 views

No PV option for xapi?

I have installed xcp-xapi on my Dom0 server. When I tried to create a VM, I found there are no options for me to create a PV VM based on existed kernel, initrd image and qcow2 disk image! Anyone can ...
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3answers
386 views

Opening a Qemu/Xen file based VM Image (won't boot after upgrade)

Apart from one Virtual Host still running Xen/RHEL5, all our virtual capability is hosted on KVM hosts with LVM storage devices. I've stupidly attempted an Ubuntu full release upgrade on a guest ...
4
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1answer
303 views

How do I make all Xen guests use their host clock value?

I've set up Xen server under Linux with several guests running, and all was well. After some time I've noticed the clock on the server drifted away, so I installed 'ntpd', and the clock was back to ...