XEN is a hypervisor based virtualization technique.

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How to bridge a VM to public IP

I wish to to assign the IP from my eth1:2 to a VM; I also have no use of this IP for the host, it would be desirable to be exclusive to the VM. I've ended up with a setup just like this (eth1:1, eth1:...
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Xen and Networking

I'm using Xen 4.1 I have a (debian) host with 1 ethernet adapter on 172.16.1.0/24 range, static configuration. I want to have various (centOS) guests, that will be on a different network: 192.168.0....
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Xen and traffic shaping

I want to limit the incoming and outgoing traffic for a guest machine on a Xen Host. There is a total of 1000Mbit/s available on the host. The guest machine has its own interface, let's say vif1.0 ...
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Xen domU sort of ignores /etc/network/interfaces

I have a Debian based Linux installation, that gets around: It started out on a physical system, then I moved the OS into a VMware container and then into a Xen container. As physical and VMware ...
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302 views

host only network xen 4.4

I have one IP address (ipv4) and I am trying to install a domU (debian stable) on a dom0 which runs the latest xen 4.4.1 on debian testing. I have created xenbr0 bridge and it is mapped to my eth0. ...
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452 views

Xen boots old kernel after upgrading

I've upgraded linux kernel from 3.2.0 to 3.16.3. Now Xen boots the old one (3.2.0) instead of 3.16.3. Is there any way to force Xen to find that a newer linux kernel version is available? Or am I ...
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How to regenerate an initramfs with ash built-in shell?

I foolishly edited my /etc/mkinitcpio.conf and now my computer won't boot. It drops down to (initramfs). It claims it cannot find the root device. However, cat /proc/cmdline shows the correct UUID of ...
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zpool mount issues on boot

Looking for help with errors I'm encountering with ZFS. Firstly, the main issue is that I can't get my zpool to mount at boot, but there are obviously other problems I would like to sort out (see ...
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Prevent dom0 IGP from being VGA-passed-through to HVM host with Xen4.4

Usually people want to VGA-passthrough their IGP, and there are a lot of documentation out there. However I don't want my IGP passed-through to the domU as it serves my dom0, only my secondary card (...
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Setting up VGA Passthrough on Ubuntu with KVM : error no iommu_group for device qemu-system-x86_64

I'm trying to configure the VGA Passthrough on the Debian SID because I want to use Debian on the first monitor and Windows 7/8 on the other one. I have tried with XEN and with KVM but in both case I ...
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736 views

Grub not Recognizing XEN Kernel on Boot

We are able to successfully install and boot to a XEN kernel on 5 of our 7 eucalyptus node controllers. The last two are having the same problems despite running an identical installation process. I'...
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427 views

Cant detach/ kill xm console on node server

please advice, why I cant attach console from xm command? [root@vm ~]# xm console vm104 Another console has already been attached to guest
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568 views

xentop gives static info about memory usage

I am using CentOS 6.5 and Xen 4.2.4-30 xentop does not change MEM(%) at all. NAME STATE CPU(sec) CPU(%) MEM(k) MEM(%) MAXMEM(k) MAXMEM(%) VCPUS NETS NETTX(k) NETRX(k) VBDS VBD_OO ...
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1answer
671 views

XEN stop all virtual machine when shutdown

I am using XEN on CentOS 6.5 64 I want a way to stop all virtual machine when XEN server shutdown I build service call in stop xm shutdown -a but not working #!/bin/bash # chkconfig: 2345 95 20 # ...
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Global IP on DomU in XEN, using Ubuntu

Can a DomU have a global IP in Xen? I see that DomU's are connected to Dom0 and then physical ethernet using xenbridges, so is it technically possible in Xen to assign global IPs to DomU so it can be ...
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3k 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: fe80::a00:...
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My Atheros Ethernet network drive is not working with Xen Redhat client

First I am a beginner in use Linux operating system, and I am not familiar with the error messages I have TOSHIBA Satellite laptop Intel (R) Core (TM) i5-4200m CPU I have installed Red Hat Enterprise ...
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367 views

Gentoo XEN host + EFI + MDADM + IMSM RAID5

I have a workstation with a working Gentoo setup. It uses IMSM FakeRAID (level 5) with 4 disks. Booting done without bootloader using Linux kernel EFI STUB. System works fine. Now I need to setup XEN ...
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8k views

device mapper on RHEL6 unable to create devs for LVM logical volume

I have XEN guest running RHEL6, and it has a LUN presented from the Dom0. This contains an LVM volume groups called vg_ALHINT (INT for Integration and ALH is an abbreviation of its Oracle database ...
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172 views

Why do I get dropped into a GRUB rescue console? [duplicate]

I've been setting up my environment on a fedora 20 64bit, the last week. After a restart tonight I am unable to boot into my system. It boots into this terminal/prompt and it says: [ Minimal bash-...
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Citrix XenServer, all packages appear to be 32bit

I'm hoping to use Citrix XenServer for a group of 4/5 machines. One of these machines has 18TB of storage (after RAID5 is taken into account). I've installed XenServer and mkfs.ext3 is the only option....
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795 views

Change screen resolution of Xenserver Console for a CentOS VM

I need to increase screen resolution to 1024x800 for my XEN console. I tried to place vga=791 at the end of kernel line the file /boot/grub/grub.conf but it seems that most of the boot arguments ...
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Can VirtualBox run under Xen Dom0?

I'd like to turn my Linux Mint desktop into Xen host. Will I be able to use VirtualBox inside Dom0, just like without Xen? What the limitations would be (if any)? I believe, that this might not be ...
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835 views

xe sr-create type=ext results in backend failure

I'm trying to create an ext based storage repository: xe sr-create content-type="local SR" \ host-uuid=c7030a1f-15e3-7e7d-2932-b30200a15917 type=ext \ device-config-device=/dev/sdb1 \ shared=...
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1k views

Creating a private network for internal VMs

I am trying to configure a private network for use with my Xen VMs, in addition to the public network in use by another of the VMs (VM1, which has its own public IP). So far, I have the public side ...
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1answer
597 views

No usable clock interface found

I just finished installing a paravirtualized archlinux guest on xen. I get the following error when my guest boots: [1.185226] i8042: No controller found [1.1247134] drivers/rtc/hctosys.c: ...
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High ping/latency on Xen box

I am having problems with my Xen box. Once in a while it has too high ping/latency and it is very annoying. It does not matter if I am pinging server from outer network (LAN0) or inner network (LAN1)...
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159 views

Limit CPU cycles inside of Xen

I'd like to run some minimum-expectation benchmarks on EC2, but I'm having an issue of high variability in my output data. Specifically, they keep giving me more CPU than I'm minimally entitled to, ...
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1answer
2k views

Adding wlan0 to xenbr0

I'm setting up xen on debian to do some testing and having problems with the bridge. I would like to use wlan0 as the bridge, but can't seem to get this working. Currently I have tried this: # This ...
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264 views

How to find out which virtualisation technology is used on Linux VPS server? [duplicate]

I have access to some Debian Linux vps servers, however I cannot access their controls panel directly: only server administrator himself can do that. Is there any way to find out what visualization ...
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2k views

Measuring CPU %steal on VMware and Hyper-V hypervisors

For Xen Linux guests, %steal time is readily available via top and other utilities. Is it possible to get this and related metrics from within a Linux guest when running a non-Xen hypervisor such as ...
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replace xen kernel with non xen kernel

I have a virtual appliance in Xen format (XVA) that I wish run to on another hypervisor (MS Hyper-V). What have I done so far: I have converted the XVA to OVF using XenConvert, this resulted in a vhd ...
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Xen HW virtualization on Power architecture?

https://en.wikipedia.org/wiki/Xen#Hardware-assisted_virtualization.2C_allowing_for_unmodified_guests The wikipedia page says Xen has HW virtualization for Intel and AMD CPU's. Q: Does Xen supports ...
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Mounting LVM2 volume gives me 'mount: you must specify the filesystem type'

I have a LVM2 Volume Group 'vgXEN' with a Logical Volume in it called 'test-disk'. This is the output of lvdisplay: --- Logical volume --- LV Path /dev/vgXEN/test-disk LV Name ...
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1answer
1k views

Booting from ISO in Xen Paravirtualized Environment

Specifically, Citrix XenServer 5.6. I can map the an ISO from a Storage Repository with no issues and mount it inside the OS but I can't boot from the DVD drive without converting it to HVM, which ...
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1answer
181 views

Xen crashes when loading X

I installed debian-7.1.0-i386-kde then apt-get install various Xen stuff. After updating Grub I found it boots up using Xen however at the point where it tries to draw my desktop (KDE) I get a bunch ...
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benchmarking ftp in 3 methods of virtualization

My Bachelor Final Project is about benchmarking visualization methods with ftp, web and mysql services: installing Debian on xen (para-visualization) kvm and lxc with equal resources config (equal ...
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Allocated Memory difference in xen guests after using Linux 3+ kernel [closed]

Can someone explain to me why there is a memory difference in Guests with the same configuration? Hypervisor: xen 4.2 64 bit VM1: Centos 5.7 with 2.6.18-274.el5xen Assigned memory from xen is ...
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1answer
479 views

Open luks-encrypted partition from virtual DomU LVM disk containing another LVM

I've gotten myself in a bit of a bind, here. A while ago I set up an encrypted Unbuntu 13.04 under Xen. It's virtual disk is an LVM LV. This LV was presented to the DomU as a (whole) physical disk ...
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2answers
276 views

Moving a Xen DomU to a new block device

I am busy replacing the (SAN attached) storage configured for this XEN host. Is there some way to "move" the domU from one block device to another on the same host, possibly something similar to live ...
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1answer
1k views

libvirt daemon doesn't start on Gentoo [closed]

I'm trying to use Xen with virt-manager on Gentoo system and I have some troubles with libvirt daemon. When it starts: Starting libvirtd ... /usr/sbin/libvirtd: error: Unable to initialize ...
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2answers
2k views

Linux-distro with built-in Xen?

Are there any Linux-distros with Xen "built-in" and ready to act as host for virtual-computer out-of-the-box? Alternatively, distros where you can easily select "Xen-host" as an install option? I'm ...
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170 views

Scrambled Xen Console on dom0

I installed Xen using the recommended procedure on Ubuntu's site using motherboard Supermicro X7SBL-LN2 and Ubuntu 13.04 amd64. After the installing it and rebooting my console looks like this: https:/...
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ext3 root filesystems goes read-only with aborted journal even after repairs

Short version: ext3 root filesystem on rackspace (xen) VM detects aborted journal on boot and mounts read-only. I've attempted to repair this from a rescue environment with tune2fs and e2fsck as ...
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Crash analysis and 4 levels of page table

I am having xen 3.4.2 running with 15 vm (pv+hvm) on a host with 256 Gb RAM and 96 core CPU. But recently my host crashed on debug log its showing translating ffff83183fcb0000 with CR3 100ae42000 ...
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BUG: soft lockup - CPU# stuck for x seconds

I've seen a few bug reports and questions (on stackexchange and elsewhere) regarding a nagging "BUG: soft lockup - CPU#<n> stuck for <dt>s!". So far, I haven't found any clue as to what ...
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Horrible situation - file systems mounted simultaneously by multiple independent OS instances

How do I get out of this situation safely? Details are as follow: A xen server has got block devices allocated to VMs. But these devices have also been mounted inside Xen. In fact 44 of these ...
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Xen: Migrating LVM-based machines from Xen Opensource to Xen Cloud Platform

we have several LVM-based VMs running on a Xen Opensource host. "LVM-based", in our case, means that there's a LVM volume for the root partition and another volume for the swap partition. The kernel ...
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Use dd to backup disk image within an OpenVZ container

I want to use dd to backup the disk of an OpenVZ VPS in addition to traditional cold tar backups. Because I may need to migrate to a different VPS provider. From end user point of view, OpenVZ ...
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Xen is unable to use URL's to install CentOS

I can't seem to use URL's when using the netinstall for CentOS, I'm installing CentOS on a Xen VPS. I keep getting this error in the terminal window, when I use the URL: ┌────────────────┤...