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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Question about Xen-Server

I just installed Xen-Server to an Ubuntu Server 22.04, but I can't find documentation on how to administer, does anybody know where I can get that? By the way, I use apt to install it, not a third ...
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ubuntu 20.04 with kernel 5.4.0-117 and Xen 4.11 opnsense domu unusable

After upgrading ubuntu server 20.04 from kernel 5.4.0-113 to kernel 5.4.0-117 the opnsense domU (OPNsense 22.1.8_1-amd64) is unusable. The domU is started, but watching the console the startup is very,...
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How to create and start Xen guest VM by qemu-system-x86_64 command

I have built & installed Xen 4.15 onto my Ubuntu20.04 platform successfully according to https://wiki.xenproject.org/wiki/Compiling_Xen_From_Source After reboot, I entered Domain 0 successfully. ...
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ubuntu 20.04 with Xen 4.11 DOMU crash PCI pass-through issue on Supermicro with motherboard is X12SAE and Intel® W480

I am facing a crash when I launch DOMU. Hardware: Supermicro with motherboard is X12SAE and Intel® W480 OS: Ubuntu-20.04 $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu ...
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Ubuntu Server 20.04 Crashes when using premade MBR partitons

I'm attempting to install Ubuntu on 150GB MBR disk with 3 partitions /boot 1GiB swap 8GiB / 140.9GiB The moment the installer starts the format it crashes. Does anyone know what might be the ...
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Cannot boot Xen: secureboot forbids loading multiboot2 module

I've installed xen-hypervisor-4.11-amd64, now I wish to boot Xen. I can't. When I choose corresponding entry from grub I receive following message: Loading Xen 4.11-amd64 error: Secure boot ...
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Is the "linux-firmware" package actually required on a XEN VPS?

This package is half a gigabyte so I'd like to determine if it's truly needed. I'm having trouble understanding why it would actually be required on a VPS, and no other packages depend on it, however, ...
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ERROR: Can't find hypervisor information in sysfs!

Following an update, I can no long boot any of my VMs. xl create lv-vm-debian01.cfg gives the error ERROR: Can't find hypervisor information in sysfs! I tried mv /etc/grub.d/10_linux /etc/grub.d/...
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How to stop loading Xen 4.9-amd64 on boot

I installed xen on ubuntu following this question. Now, when I boot ubuntu 18.04, it takes ages and it says in the beginning: Loading Xen 4.9-amd64 ... WARNING: no console will be available to OS ...
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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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