Questions tagged [xen]

Questions related to Xen Project, which creates a hypervisor or Virtual Machine Monitor (VMM). A hypervisor allows one machine to run multiple virtual guest operating systems simultaneously.

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Gnome Desktop is not working after install Xen(20.04)

I install Xen hypervisor using next guide. https://help.ubuntu.com/community/Xen This is my /etc/default/grub. GRUB_DEFAULT="Xen 4.11-amd64" GRUB_TIMEOUT_STYLE=hidden GRUB_TIMEOUT=0 ...
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Recompiling PV kernel: unable to get domain type for domid=4

After a few attempts I have managed to get Xen up and running on my device, with an Ubuntu focal dom-0. I set up a PV guest ubuntu-focal instance, and am able to use it as expected. I'd like to ...
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3answers
485 views

Unable to add disk devices for domU after kernel update 5.4.0-67

Running Ubuntu 20.04.2 LTS with xen 4.11 After the last kernel update 5.4.0-67 and a server restart none of the guests were started. Trying to start a domU manually I got the following error message: ...
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Xen Hypervisor boots to a black screen after installation

I wanted to try virtualization so I went with Xen and followed this guide: https://help.ubuntu.com/community/Xen I got to the second command which says Now reboot: $ sudo reboot During rebot, grub ...
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1answer
382 views

Xen not in grub menu after do-release-upgrade to 20.04

I have a server on which I run a number of Xen VMs. I recently upgraded from 16.04 through to 20.04. Unfortunately, Xen is no longer showing up in grub as a boot option. I only see: Ubuntu Advanced ...
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1answer
148 views

How to add space disk to VM Ubuntu 16.04 on Xen server

I have an Ubuntu 16.04 VM on Xenserver. I add a disk extension to it to increase its storage capacity. I added a disk on Xen, but the problem is that the Ubuntu VM does not detect the added disk ...
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121 views

Ubuntu 18 Grub problem (on Xen virtual machine)

I have a couple Xen of Ubuntu virtual machines, different distributions - two of them have Ubuntu 18 LTS onboard (created by command: "xen-create-image --pygrub --dist=bionic --image=full"). ...
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547 views

Ubuntu 20.04 with xen 4.11 domU panic with pci passthrough

I started to upgrade my server from Ubuntu 18.04 to 20.04. After reinstalling xen / qemu in the dom0 XEN cannot start domains after upgrading from 18.04 to 20.04 dom0 and all domU instances worked as ...
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0answers
651 views

Ubuntu 20.04 with ZFS root fails to boot after installing xen

I did some Google searches but failed to find anything for this problem. After installing 20.04 using the ZFS root option I installed Xen. When it rebooted it failed in initramfs with the error "...
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343 views

Why can't I book xen hypervisor on Ubuntu 20.04.1? panic on cpu 0 timer doesn't work!

As the subject says I simply cannot boot into the hypervisor. I'm able to install it just fine though, it says something about the CPU when I try to boot and quickly just reboots. I have ...
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90 views

xen and the support for spice GL

To make a long story short,I tried to pass through my two kinect 2 devices from ubuntu 20.04 to a two qemu / kvm virtual machines,where on the first one I have also passed through my RTX 2080 ti and ...
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190 views

libxenlight state driver is not active

I'm trying to create a new xen connection with virt-manager. At the beginning it didn't work because this error : "failed to connect socket to '/var/run/libvirt/-virtxend-sock. file or directory ...
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1answer
596 views

socket to '/var/run/libvirt/virtxend-sock': File o directory not found

I'm running xen on ubuntu 20.04 and I'm trying to create a new xen connection with virt-manager,but it does not work,because the error : "failed to connect socket to '/var/run/libvirt/-virtxend-...
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0answers
63 views

Furher help on Xen and USB passthrough

I know that this is a long-shot, but I have not been able to obtain any help from the Xen community so I wondered if anyone in Ask Ubuntu may be able to help? I have manged to get Xen installed and ...
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1answer
692 views

Upgraded from Ubuntu 18.04 to 20.04. Xen now has problems with hvm VMs

Problem 1: pv VMs running Ubuntu Linux would run but not connect through bridging until I added net.ipv4.ip_forward=1 to sysctl.conf (and rebooted). Unsure why I now need this but looking at issues ...
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4answers
814 views

XEN cannot start domains after upgrading from 18.04 to 20.04

Dom0 wrong xl list Name ID Mem VCPUs State Time(s) (null) 0 31898 8 r----- 27.7 starting of ...
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132 views

Installed Xen and now computer won't boot

I recently installed Xen on Ubuntu 19.10. When I rebooted my computer to use it Grub automatically booted as usual, but this time I got the error code on my main Samsung 1TB hard drive that the ...
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1answer
120 views

how to check if Xen support hardware virtualization?

I am try to check if xen in ubuntu 18.04 support virtualization. By following this comand: $ xm info | grep caps I am follow step 5 of this tutorial: Check virtualization capabilities The output ...
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1answer
140 views

Directory 'mc/etc' does not exist

I am try to configure gateway. I am follow step 4 of this https://trueconf.com/blog/knowledge-base/configure-xen-hypervisor-ubuntu-server-14-4-05.html When I open to edit mc/etc/sysctl.conf file I ...
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2answers
78 views

Problem with creating a PV-ubuntu-guest with Xen on slackware

I don't know if I'm in the right place but: i have Xen installed on slackware and i wanted to create an Ubuntu-Guest-Domain. I created the xen-config-file(attached) manually and created a new guest ...
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40 views

Sharing internet between Host and guest xen

I am using Ubuntu 14.04 as host machine,want to create bridge so that guest OS can access the WiFi Internet access. If a have understood correctly brctl utility is used to create bridge for Ethernet ...
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1k views

New Ubuntu 18.04 xen 4.9 VM will not boot (LUKS setup) - fails back to initramfs

On a fresh Ubuntu install with Xen (learning Xen, proficient with Ubuntu), I try to create a domU PV VM with LUKS encryption, the whole setup procedure goes smoothly, including creating, unlocking the ...
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1answer
1k views

Install Ubuntu 18.04 LTS on Xen hypervisor with linux kernel 3.18

Is it possible to install Ubuntu 18.04 LTS on a xen hypervisor platform with a 3.18 kernel? Does the xen hypervisor's kernel need to be the same or higher then the installed guest? Thank you in ...
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1answer
223 views

Pass-through of Marvell 88SE9230 to Xen guest with AMD-V iommu

I have a Gigabyte GA-970A-DS3P board with a AMD FX(tm)-8350 cpu. I have IOMMU enabled in the BIOS. For the non-XEN linux boot I pass iommu=pt amd_iommu_dump as a kernel argument and can verify that ...
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1answer
816 views

Help please with XEN PCI-device passthough

I have problem with PCI passthough in XEN. kernel: 4.15.0-23-generic CPU: Intel Core i7 - saw specifications on Intel website: it supports VT-d, VT-x and all other technologies! Checking XEN is ...
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1answer
2k views

Unable to change display resolution Ubuntu 18.04 on Xenserver VM

I'm using Dell T410 server with Free version of Xenserver 7.4, i installed Ubuntu 18.04 VM all went well but i'm unable to adjust the resolution from ubuntu settings, showing just 800X600, see ...
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1answer
873 views

Xen boot fails on HP Z8

I followed the instructions in https://help.ubuntu.com/community/Xen. Well, the first two steps. After the reboot, I am presented with: Loading Xen 4.9-amd_64 ... WARNING: no console will be ...
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1answer
7k views

Installation of 18.04 Bionic fails on XenServer7

I tried to install Bionic server as a guest on XenServer 7.0. After booting the iso I get a black terminal saying: vbd vbd-5696: 19 xenbus_dev_probe on device/vbd/5696 And that's it. Did anyone ...
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1answer
208 views

Qemu vs. Xen(Qemu): virsh can't find qemu

Im running following setup build from source: libvirt Xen(quemu was part of Xen build process) virsh vol-create qcow2 Responds to me: No qemu installd, only raw possible. Every solution pointet out ...
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1answer
5k views

Why is having an error initializing AMD-Vi?

I have a Ryzen 5 1600x CPU with a MSI X370 Gaming Pro Carbon motherboard, which 100% supports I/O virtualization. When I boot in Ubuntu without Xen I can see: me:~$ dmesg | grep IOMMU [ 1.074675] ...
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1answer
90 views

Xen DomU with > 520GB memory

i am currently trying to assign 750GB Ram to a DOMU running on our Xen server. Even though the overview states that the DOMU has 750GB RAM, inside the Guest there are only around 520 GB available. ...
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576 views

Booting of Xen Hypervisor on ubuntu 16.04.03 got stuck

we have installed the Xen Software and changed the GRUB configuration, following the standard guide on ubuntu forums. While rebooting the server, hypervisor and server did not come up and no error ...
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67 views

connect to windows 10 VM through xen

I created win10 VM on my Ubuntu 16.04 OS. i already download all the relevant packages for ssh . i started the ssh service and i got this ssh's status when i tried to connect the vm i got ...
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523 views

How to import Xen XVA files into KVM/QEMU

I am looking at powering down some Citrix XEN systems as part of an infrastructure upgrade and I was looking into using KVM/QEMU as the hypervisor instead of Xen. My XEN backup files are in XVA ...
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1answer
974 views

I installed xen-hypervisor and it breaks bootup

I ran some aptitude install commands for xen and xen tools and its broken grub, it hangs indefinitely when I boot. This unanswered question happens. booting xen hypervisor on ubuntu14.04 stuck at ...
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2answers
29k views

How to install Xen-Tools on Ubuntu Server LTS 16.04 with Xenserver 7?

I tried several methods. sudo apt-get install xen-tools is installing at least two packages but cannot configure / start them for unknown reason. Source Using the iso provided by Xencenter (...
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0answers
331 views

Kernel panic rebooting - Xenserver Tools

Topic edited, see revs for more information. I've an Ubuntu Server 14.04 running on AWS that reboots every 5 minutes. I found this message when accessing the console's panel: I'm now trying to log ...
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41 views

Bandwith monitoring in a network

We have a Internal lab system with some four physical machines. In four physical machines we have three machines with XenServer installed which is have XenVms and One Machine with Virtual box ...
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0answers
165 views

ubuntu 16.04 32bit boot crash when memory is 4GB on Xen

I've install ubuntu 16.04 32bit on Xen platform, it boot OK when memory is less than 4GB, but when i set the memory to 4GB, it will crash when the system is booting. The call trace is like: [ 2....
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1answer
99 views

How to compile and configure zen 4.2 from source code?

I have downloaded Xen 4.2 source code from GIT. Now I want to compile Xen from the source code on ubuntu 12 or 14. I have followed all these steps in the following link (https://wiki.xenproject.org/...
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1answer
262 views

Unable to open config file: /etc/xen/guest4.cfg

I have installed XEN hypervisor on VirtualBox. I want to create virtual machine. I have followed all the steps but when finally I try to use the final step for creation VM: root@ubuntu:~# sudo xm ...
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1answer
881 views

Xen vs dual-boot for games

friends! I'm using Ubuntu for making games, browsing net and anything I could ever do and I really like it. However, there is a little problem. My favourite game series Resident Evil doesn't run well ...
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1answer
6k views

How to fix error 'libxenlight failed to create a new domain'?

Using Virt-Manager 1.2.1 on 14.04. / Xen 4.4 from repos. Cannot create VM machine because this error crops up on virt-manager. This is after editing /etc/xen/xend-config.sxp to allow virt-manager to ...
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0answers
2k views

Convert Ubuntu 16.04 to PV domU on XenServer 6.5

Until recently, I've used templates from stacklet.com to create my virtual machines on XenServer, but they haven't released one for Xenial yet, and now it looks like they may have ceased operations ...
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1answer
1k views

Xen VM - Ubuntu fails to boot, how can I enter recovery mode?

I have a Ubuntu 14.04 VM that failed. It could not red/write, so I rebooted. It now loads as far as this: ------ * Starting userspace bootsplash [ OK ] ...
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1answer
231 views

network setting with xen hypervisor

I have installed xen on my ubuntu 14.04 by following the instructions at here: http://ubuntuforums.org/showthread.php?t=2008795 However, after the reboot, on the logo screen (still no desktop), it ...
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1answer
117 views

Xen domu apache

This is a Xen bridge issue. I have a web server guest. When people click on a web page, the apache logs show the IP of the bridge, not the persons IP who clicked on the page. The bridge should be ...
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1answer
2k views

Xen uninstallation

I have tried to install Xen on my ubuntu 14.04 system but I got an error while rebooting " error while mounting /proc/xen. Now i want to remove xen packages completely from my system. I have tried ...
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1answer
3k views

Running VirtualBox in a Xen environment fails

So, virtualbox does not get along with xen. How do I kill/uninstall/remove xen from the terminal so that DKMS process succeeds? aborns@nautilus:~$ sudo apt-get remove xen-hypervisor-4.5-amd64 Reading ...
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1answer
646 views

Web-based Xen hypervisor

I want to make users able to create and manage virtual machines from a web-based interface. I have installed Xen hypervisor on my Ubuntu machine I have installed Apache webserver and all the other ...