Questions tagged [kvm-virtualization]

This tag refers to Kernel-based Virtual Machines; for questions about KVM switches, use the [kvm-switch] tag instead

Filter by
Sorted by
Tagged with
-1 votes
0 answers
37 views

Are there any guest drivers for KVM virtualization when runing Ubuntu?

I'm testing QEMU/KVM virtualization and using the virtio VGA type. Unfortunately the screen seems slightly slower, using more CPU than VirtualBox when moving windows around and or playing videos, ...
Emanuele's user avatar
  • 634
0 votes
0 answers
41 views

Is it possible to reload kernel with new settings (currently configured in grub) without a full reboot?

I setup Ubuntu 20.04 awhile back with two main use cases: Run calculations on eGPU using cuda on the host. This is configured in /etc/default/grub with the default line: GRUB_CMDLINE_LINUX_DEFAULT=&...
user2561747's user avatar
0 votes
0 answers
130 views

2024 Your CPU does not support KVM extensions - Virtualization is On

I am trying to use KVM using VirtualBox running an Ubuntu 20.04.06 focal ISO image. When I enter the command kvm-ok it shows me this output: INFO: Your CPU does not support KVM extensions KVM ...
Christian P's user avatar
0 votes
1 answer
23 views

install 22.04.3 server offline - no network access

Ubuntu 20.04 host running multiple ubuntu guest servers I'm trying to install a new 22.04.3 server, but the install insists on a network connection. Because I have non-standard MTU settings, I need to ...
David's user avatar
  • 119
0 votes
0 answers
22 views

Create a guest with kvmtool

I want to boot a standalone application (I have the .elf file) on a KVM guest in an UltraScale platform. I am new with KVM and I'm using kvmtool, but I don't know how can I run a guest running my elf ...
Sara Alonso's user avatar
0 votes
0 answers
61 views

AMD 7800XT GPU passthru Virt-manager Ubuntu 22.04LTS dont properly work

Intro: Hello, I have two GPUs, one NVIDIA 3060 and a AMD 7800XT. I would like to have the nvidia to the host itself, and passthru the amd GPU to a W11 VM in virt-manager. I have already did the ...
cookiemonster's user avatar
1 vote
1 answer
145 views

NAT to Guest VM not working

Port forwarding to my guest VM (Ubuntu 22.04.3 LTS) from my Host system (Ubuntu 22.04.3 LTS) works fine. Solution found. More details at the end. I am quite new to Linux and this routing problem is ...
Be Nce's user avatar
  • 21
0 votes
1 answer
175 views

Trying to share a directory, that is located in another hard drive connected to my computer, with a Windows 10 guest on QEMU/KVM

I'm using Ubuntu 23.10 and Virtual Machine Manager 4.1.0. When I try to add the directory that is located on another hard drive in Virtual Machine Manger, I get the following error: "Error ...
Wolf's user avatar
  • 11
0 votes
1 answer
111 views

kvm exiting hardware virtualization

I used to encounter this error when I want to turn off or reboot my system.
amirali nabizadeh's user avatar
0 votes
1 answer
278 views

Docker Desktop Linux crashing & KVM not loading

I have installed Docker Desktop Linux on Ubuntu 22.04.3 LTS. After I start it and wait for some seconds, it throws this error: Something went wrong Waiting for qemu process: exit status 1 I assume ...
Kobi's user avatar
  • 1
0 votes
0 answers
30 views

Docker Desktop - VM doesn't start due to "[FAIL] DD0017: can a VM be started? vm has not started"

I have a problem with Docker Desktop - it stopped working when I tried to move Docker.raw file location with Docker Desktop GUI. The processes of Docker Desktop start, but there's no UI, Docker ...
Łukasz Sypniewski's user avatar
0 votes
0 answers
31 views

Got on trouble Vlan VM need help. (VLAN, KVM-VM)

I want to create a vlan on ubuntu server and want to create a ubuntu server vm mit kvm but I have not enough lan ports so I want to create a van to create the vm that uses the vlan to get an private ...
user21196187's user avatar
1 vote
1 answer
262 views

MacVTap in KVM not getting IP address from Local Network DHCP

Trying to create a KVM with MacVTap interface, but there is no ip assigned to it Referring to these docs to create the kvm. Followed the creation of network properly, i.e added interface in the ...
swastik sarkar's user avatar
0 votes
0 answers
41 views

Confusion in Hypervisor type 1 resource management

I'm new to Proxmox and virtualization in general. I've been learning about Type 1 and Type 2 hypervisors. Type 2 hypervisors, are deployed on the host OS, meaning they rely on the host operating ...
Peace Mode's user avatar
0 votes
0 answers
48 views

setting nested virtualization in ubuntu

I am using Ubuntu as my host machine and using KVM. In my KVM machine (windows guest) I have installed Vmware. Is it possible to run machines inside the windows guest (in the vmware) I know is it ...
nvmkxa's user avatar
  • 1
0 votes
1 answer
313 views

Can I passthrough GPU into kvm without using vfio/iommu?

Most of the tutorials I have seen are based on IOMMU to implement GPU passthrough. However, is there a way to bypass the IOMMU? My kernel is 5.15.126 Update 1: From libvirt.org I found that a <...
Jason Lee's user avatar
0 votes
0 answers
82 views

GPU Passthrough in kvm, but dmesg reports arm-smmu-v3 CMD_SYNC timeout on host

For some reason I can only use iommu.passthrough to enable iommu on my arm64 borad. It seems I successfuly passthrough a Tesla P4 into my guest machine. But after installing the Nvidia vgpu driver, ...
Jason Lee's user avatar
0 votes
0 answers
63 views

Ubuntu 22.04.3: error when exec virsh sysinfo command: unsupported configuration: Host SMBIOS information is not available

I installed KVM on Ubuntu 22.04.3 Desktop on Lenovo ThinkSystem SR550. My command I used to install KVM was: sudo apt update sudo apt upgrade sudo apt install qemu-kvm libvirt-daemon-system libvirt-...
Bonavadeur's user avatar
0 votes
1 answer
24 views

Small window starts to appear after boot up

It starts to appear after boot. I did feel a bit of slowness when I use the machine. Using Lunar, any idea how to check it, remove it, fix whatever is going on.
Hao's user avatar
  • 227
3 votes
2 answers
962 views

KVM. kvm-ok not found error

Ubuntu 22.04 I'm trying to set up KVM by following this guide https://help.ubuntu.com/community/KVM/Installation and unfortunately Im getting the following error when I run kvm-ok Command 'kvm-ok' not ...
Artillery's user avatar
  • 326
0 votes
1 answer
77 views

How can I resize partitions using command line in my KVM [duplicate]

I only have access to the server via a terminal and I can't use graphical tools. I want to extend my /vda/vda3 from all free space of 150G. NAME MAJ:MIN RM SIZE RO TYPE ...
Tong DpOiJaInNo's user avatar
0 votes
0 answers
30 views

How to virtualize snapshot clone fast ubuntu iso files to test if bugs are gone? What is lightest container app?

How to virtualize snapshot clone fast ubuntu iso files to test if bugs are gone? What is lightest container app? I want to fast load in ubuntu and windows an iso of ubuntu to test bugs. What is best ...
Kangarooo's user avatar
  • 5,055
1 vote
0 answers
86 views

How can I run a windows VM on an machine running Ubuntu that I have remote access to?

The situation is that I have remote access to a machine running Ubuntu 20.04.5. This is brand new with nothing setup. I want to setup a windows VM on this remote machine, and ideally have some client ...
Varun Desai's user avatar
0 votes
1 answer
127 views

How to add code to .bashrc without causing errors?

I'm learning how to passthrough my NIC to my KVM. This guide says to add the following code to the file ~/.bashrc #!/bin/bash # change the 999 if needed shopt -s nullglob for d in /sys/kernel/...
user1416486's user avatar
0 votes
0 answers
320 views

Ubuntu-22.04.3-desktop-amd64.iso with virt-manager-4.1.0.tar.gz install possible?

I have no Internet until I install a KVM router. Therefore, I think I need Ubuntu-22.04.3-desktop-amd64.iso to install from USB, with enough packages/libraries so that virt-manager-4.1.0.tar.gz will ...
user1416486's user avatar
0 votes
1 answer
345 views

Recent minor upgrade on 22.04.1 results in breaking QEMU binaries for gemu-kvm

Prior to a recent minor upgrade to Ubuntu 22.04.1, I had a working qemu-kvm virtual machine. I have Windows 10 installed in Virtual Machine Manager. After the upgrade, I get errors when trying to ...
Scott's user avatar
  • 101
2 votes
0 answers
2k views

KVM is not enabled in host Error required compatibility check Virtualization Support

I'm using Ubuntu 22.04.3-amd64 in an Oracle VM. I followed the instructions in Install Docker Engine on Ubuntu and ran the command: sudo apt install ./docker-desktop-4.22.1-amd64.deb Everything ...
alexis ibarra's user avatar
0 votes
1 answer
86 views

How to list the guest machines inside a host machine in OpenStack?

I have a background in KVMs but I am new to cloud. In KVM, you can list the guest machines that are inside a host machine by running virsh list --all in the host machine. How do you do that in ...
Noob_Guy's user avatar
  • 101
0 votes
0 answers
86 views

stuck at shutdown: Running guests on default URI, no running guests

I have Ubuntu 22.04. Almost every time I shut down my PC, this happens. I can press CTRL+ALT+F1, to switch to tty1, and then the system will immediately shutdown, but how to solve it permanently?
Mohammad Mostafa Dastjerdi's user avatar
0 votes
0 answers
178 views

Booting ubuntu 22.04 cloud image in rockylinux 9.2 failed

I have downloaded ubuntu 22.04 cloud image from below link and converted the same to qcow2 to be used in cockpit in Rockylinux. I have resized the disk size to 100GB as shown in below picture. https://...
codingfreak's user avatar
1 vote
0 answers
439 views

AppArmor issues with Libvirt

I have a fresh Ubuntu Server 22.04.3 and Debian 12.1.0 installed and updated. Along with Cockpit and Cockpit virtual machines on both tests machines. I am getting the following errors and warning when ...
Johannes's user avatar
0 votes
2 answers
5k views

UBUNTU shutdown prevent : kvm exiting hardware virtualization

i hope you are doing well. this problem has been quite a while but i have been researching a lot and i don't know what else to do. Ubuntu doesn't shutdown but keeps getting stopped at message: kvm ...
user1722185's user avatar
0 votes
0 answers
155 views

Guest VM with window OS failed to installed on ubuntu 22.04 host

I am trying to create VM with window OS on ubuntu 22.04 host. My installation crashed with blue screen and the error is "system exception thread not handled". VM created successfully on ...
Nitendra's user avatar
  • 101
1 vote
1 answer
2k views

How to install Ubuntu 22.04 as GUEST in KVM

I need to install the latest LTS Ubuntu (22.04) in KVM. Few years ago I installed 18.04 in this way and it worked: sudo virt-install --name new_server --ram=2048 --vcpus=1 --cpu host --hvm --disk path=...
user12125591's user avatar
0 votes
0 answers
216 views

How to properly set up a KVM bridge?

I had a big problem, no matter how I set up the bridge for KVM, the network constantly drops until I return everything as it was. I don't know what I'm doing wrong, so I'm turning to you. I tried ...
Yan Belogorodov's user avatar
0 votes
0 answers
457 views

Soundless QEMU/VM win11

I'm pretty much a novice when it comes to using LiGNUx and I've just gone through a painstaking process in order to get a Windows 11 virtual machine working with a totally legit ISO file without ...
Fleckens Teleworm's user avatar
0 votes
0 answers
17 views

How to create guests VMs from different disk in ubuntu server

this is my disk layout loop2 7:2 0 49.9M 1 loop /snap/snapd/18357 sda 8:0 0 223.6G 0 disk ├─sda1 8:1 0 1M 0 part ├─...
Elvin Jafarov's user avatar
0 votes
0 answers
12 views

How is the host WAN connecting WAN traffic to the host bridge WAN?

Can someone help me understand how the WAN enp3s0 connects in Ubuntu on my virtual setup? I just set up my desktop with a VM router. Just trying to map the topology. I can see and map the LAN traffic, ...
user1416486's user avatar
0 votes
0 answers
995 views

QEMU/KVM virt-manager Unable to GPU Passthrough: Group not viable

My computer specs: Fresh Ubuntu 22.04.2 LTS install AMD Ryzen 5 5600x 32GB RAM 2TB NVME Radeon rx 6500 xt & Radeon rx 5700 MSI B450 Pro Carbon motherboard Guides attempted: Mathias Hueber Pavol ...
Chloe's user avatar
  • 1
0 votes
0 answers
129 views

How to create virtual network bridge in KVM of Ubuntu 22.04

I am using Ubuntu 22.04 LTS desktop, I have configured KVM and how to create bridge where I want to communicate between vm & Host machine through the bridge.
N.Chowdhury's user avatar
0 votes
1 answer
77 views

Can't use --mode in virsh shutdown

Any mode gives me: error: unsupported flags (0x4) in function qemuDomainShutdownFlags Is there a package I'm missing?
rory toma's user avatar
  • 347
-1 votes
1 answer
464 views

How do I configure libvirt-guests on Ubuntu 22.04

In RH-based distros, this seems to be in /etc/sysconfig. It appears it has moved in Ubuntu, but to where?
rory toma's user avatar
  • 347
0 votes
0 answers
199 views

Ping Ubuntu 22.04 Desktop to Virtual Machine Manager 4.0.0 VM Destination Host Unreachable

Goal: Host machine running Virtual Machine Manager to have guest vm router on the LAN. Host Ubuntu 22.04 Desktop 192.168.1.120 pinging VM router pfSense 192.168.1.1 error: Destination Host Unreachable....
user1416486's user avatar
1 vote
1 answer
352 views

Stuck on the 'Try or Install Ubuntu' screen when booting Ubuntu in qemu emulator on Linux server. How do I troubleshoot?

I am unable to boot ubuntu ISO Image from qemu on Linux Server. Aim : I am trying to boot a ubuntu virtual machine from qemu emulator on Linux server. I tried the following commands. qemu-img create -...
PODILI CHAITANYA AKHIL KUMAR's user avatar
0 votes
0 answers
195 views

Gnome boxes wont load Ubuntu 23.04

I am recently shifted from KDE neon to Ubuntu 23.04. I am running clean ubuntu, without any dualbooting. I have installed my windows OS on gnome boxes, sometime after reboot gnome boxes are not ...
Sairam Gudiputi's user avatar
0 votes
0 answers
69 views

Autoinstall is failing for Ubuntu Server IoT 20.04

I am trying to automate Ubuntu Server 20.04 IoT. First thing is it doesn't generate autoinstall-user-data file for some reason. Then i used a very basic user-data(added below). It starts installation ...
techipank's user avatar
  • 101
0 votes
0 answers
81 views

virt-install doesn't create .img file on Ubuntu 22.04

In Ubuntu 14.04 virt-install of kvm ISO used to create .img automatically in location /var/lib/libvirt/images/ but in Ubuntu 22.04 even though vm installation was successful, the .img file didn't get ...
abhishek shrivastava's user avatar
0 votes
0 answers
33 views

What's wrong with my netplan?

I'm running opnsense in virtualbox on my ubuntu host and although it's working well, it has cut my network throughput by 75%, so I'd like to try and move to KVM on the host. With virtualbox it was ...
Ken Vermillion's user avatar
0 votes
1 answer
237 views

Invalid YAML: inconsistent indentation: addresses: [192.168.1.120/24]

In my host Ubuntu 22.04 Desktop, I'm creating 2 bridges for eth0-br0 and eth1-br1. br1 needs LAN access from the host machine 192.168.1.120/24 to the guest machine 192.168.1.1/24. I haven't been able ...
user1416486's user avatar
0 votes
0 answers
42 views

Different behavior of KVM running status on physical KVM host and VM based KVM host

I have an automation script that checks the running status of a KVM and does some action based on it. When I installed KVM using virt-install on a physical host the initial status of KVM ("...
abhishek shrivastava's user avatar

1
2 3 4 5
23