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Questions tagged [virtualization]

Questions about Virtualizing Ubuntu or virtualizing other operating systems within Ubuntu.

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"apt upgrade" on aarch64 reports "No VM guests are running outdated hypervisor (qemu) binaries on this host"

Every apt upgrade show this error/warning message - Scanning processes... Scanning candidates... Scanning processor microcode... Scanning linux images... Running kernel seems to be up-to-date. ...
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1 answer
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memory usage is wrong and diagree between gnome-system-monitor and htop (22.04)

I'm having a RAM problem where my RAM is full but there's nothing consuming al of it. The sudo htop commands shows my real memory usage, while sudo gnome-system-monitor shows the memory full. It ...
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  • 157
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0 answers
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'canberra-gtk-play' is not recognized as an internal or external command

"'canberra-gtk-play' is not recognized as an internal or external command, operable program or batch file". I don't know why this error appears. pls help me fix this bug
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Ubuntu 22.04 on Hyper-V: missing RAM

I'm running Ubuntu servers on Hyper-V (W10 and 2019) and have assigned them static memory, say 1GiB. Hyper-V Manager confirms that and the host actually uses 1GiB of RAM. But inside the Ubuntu VM free ...
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Network Issues: Ubuntu 20.04 VM on Hyper-V with VPN

I faced the systematic network issues on my Hyper-V Vm with Ubuntu 20.04: I've lost connection when I'd turned on Global Protect VPN on my host machine (Win 10). This is my netplan config: version: ...
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Oracle VM VirtualBox, unable to interact after user login

I have been using Oracle VM VirtualBox for years with an Ubuntu version. Today, after some months without using it I booted it and the screen size was small, looking like I had to install again Guest ...
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Virt-manager filesystem passthrough not working

I'm new to the ubuntu/linux environment so I don't have a lot of knowledge before hand. I'm currently trying to set up a filesystem passthrough between my host (Ubuntu 22.04 LTS) and my vm (Ubuntu 16....
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1 answer
423 views

Ubuntu 22.04 GPU passthrough (QEMU)

I have found a guide that tells me to do the following to get GPU pass through working on 20.04 apt install qemu-kvm libvirt-clients libvirt-daemon-system bridge-utils virt-manager ovmf lspci -nn ...
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How do I install extra kernel modules in a KVM kernel?

I have an Ubuntu VM built from the focal-server-cloudimg-amd64-disk-kvm.img image. The problem is that I am trying to install a package that requires kernel modules not included. Specifically, I ...
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running make with 22.04 LTS on Postgis , errror message flex is missing, although flex is installed

Underneath some feedback from the make process, in the last line the feedback from the flex (re)install suggests flex is already installed ( could see it also in the /usr/bin folder ). I pulled the ...
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6 votes
3 answers
3k views

Install Ubuntu Desktop 22.04 ARM64 on macOS Apple Silicon (M1/Pro/Max) in Parallels

There's no direct download of Ubuntu Desktop 22.04 for ARM64 yet, how do you install it?
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1 answer
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Can anyone provide me with a working example of ubuntu-cloud-init.cfg for an Impish kvm/qemu host?

I've been pulling my hair out for two days trying to get a working cloud init config for 21.10 guest VMs on a 21.10 host. The problem is authentication. No user can authenticate to the VM using virsh ...
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1 answer
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kcore file on /proc/ 128tb

my vm with windows with shared folders and my ubuntu showing the file on KDE Dolphin /proc/kcore - 128TB a link to the file ok, i creating a project in a Windows VM, the Linux+Windows, copying my host ...
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3 votes
2 answers
2k views

Unable to install Ubuntu 22.04 LTS on virtualbox

As the title say I'm unable to install 22.04 LTS on virtualbox as I get past the installation phase and I reboot as needed. Then I don't see anything but Ubuntu logo. (I followed the tutorial in the ...
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1 answer
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Getting the error 0x80370102 when trying to run WSL on Windows 11 on Mac

I installed Windows 11 on my Mac (M1) using Parallels, and on the windows machine I tried installing the Ubuntu subsystem to run Docker, so I downloaded Ubuntu (Ubuntu2004-220404) and installed it. ...
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GNS3 Ubuntu VM has no network connectivity, even after trying to set static IP

GNS3 Version: GNS3 v2.2.9 Operating System: Windows 10 VirtualBox 6.1.32 Ubuntu 20.04 LTS GNS3 setup: https://i.imgur.com/bmuM7l2.jpg Right now I am literally just trying to get pings going between ...
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1 answer
20 views

Gnome Boxes: Ubuntu host crashed, Windows guest not restarting

I'm running Gnome Boxes 40.3 on Ubuntu 21.10. I'm searching online for an appropriate forum to ask this question. The Gnome Boxes docs are not covering my problem and I haven't yet found a forum run ...
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22 views

KVM virtual Guest Server not reaching internet Guest Desktop does

100% new to Linux/Ubuntu Have set-up a physical machine with Desktop and installed KVM. I have two NICs in the physcial machine. Secondary NIC is assigned to the KVM virtual network and is turned off ...
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QEMU Doesn't Install In My WSL 2 [duplicate]

I have downloaded tried qemu for my os and bootloader development workspace, but it just won't download, i tried using sudo apt and sudo apt-get to install it but nothing seems to work. Here is the ...
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Does Gnome Boxes support stretching guess screen to fit the window?

I tried to install Gnome Boxes on Ubuntu 22.04 (beta). The default one was Snap, but after downloading an OS image, it failed to start the guest. So, I uninstalled it and installed the package version ...
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Can I configure multipass to use an existing network bridge?

I already have br0 configured on my physical host and would prefer to have all my multipass VMs use this bridge. Is there a way to do this? multipass get local.driver confirms I have the libvirt ...
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0 answers
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about virtualization technology intel i3 core

I use virtualization technology for bluestacks and when I go to bios setting and I enable virtualization technology then after few days its disabled automatically what should I do??
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2 answers
155 views

Unable to add virtiofs filesystem to QEMU VM in Ubuntu Server 20.04 due to incomplete feature support

I am having difficulties adding a shared folder on my host Ubuntu Server 20.04 for exchanging data with my Linux VM using virtiofs. Inside my <domain/> I have added <memoryBacking> <...
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125 views

unable to start android emulator due to kvm error code:0x80000021

I would want to run android emulator inside a virtual machine and below are the system (host and guest) details. When I start the emulator, it crashes immediately with the error message "KVM: ...
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23 views

Ubuntu 20.04.2 as VM autologin hangs

I have an Ubuntu 20.04.2 Desktop with KVM installed. I then installed Ubuntu 20.04.2 Desktop as VM. I have it setup, so that an auto login on tty6 starts. It kinda of works. The VM boots and stays on ...
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1 answer
203 views

Ubuntu 20.04, Hyper-V problem with network connection with private switch type

I have created Ubuntu 20.04 VM on my Hyper-V. I added there 2 network switches: external for internet connection private for isolated network The problem is that this VM cannot connect with private ...
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1 vote
0 answers
67 views

Cross Compile QEMU from Ubuntu to Windows 10

For several days I have been stuck trying to cross compile QEMU for windows 10 x64. I am not familiar with minwg at all. I read a lot of pages but most of time it seems to be to old or or to not use ...
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Connection Details is greyed out in Virt-Manager | KVM

I'm trying to edit my connections and Connection Details is greyed out in Virt-Manager. Does anyone know why? I've never encountered this before. This is happening on Ubuntu 21 most updated version on ...
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42 views

qemu virtualisation: import NFS share?

An old friend with somewhat "personal" opinions and habits requested me to set up a virtual Win XP machine on his Ubuntu. The reason for wanting this very antiquated O/S needs not be ...
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0 answers
29 views

Installation of Ubuntu 20.04 does not complete in Virtual Machine inside VirtualBox

I am trying to install Ubunutu 20.04 desktop image in Virtual Machine inside VirtualBox. Ubuntu installation gets stuck at 'Who are you?' dialog screen not allowing to enter name, computer name, ...
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1 answer
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kernel panic not syncing : Attempted to kill the idle task. I got this error while plugging Ubuntu virtual machine

Error image is clearly specifying the message.
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0 answers
32 views

is it possible to pool together several ubuntu servers in a sort of cloud system?

Maybe it is a stupid question. But I have been thinking I've got several old computers, just lying around. would it be possible to pool together those computers in to a single "hardware pool"...
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0 answers
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How do I set up internet connectivity from an Ubuntu Server Windows VM?

I was doing this Uni lab in the PCs there with VMWare running an Ubuntu Server 21.10 VM and had to set a static IP to connect to another server via SSH and do other stuff. However, we were all on the ...
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0 answers
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I cannot increase a .vdi container size using Virtual Media Manager. Do you know why?

I get message: Result Code: VBOX_E_NOT_SUPPORTED (0x80BB0009) Component: Resizing to new size 96306790400 is not yet supported for medium 'D:\VirtualBox_VMs\Ub_20.04.01\Ub_20.04.vdi'.
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0 votes
1 answer
19 views

KVM Virtual Machine Webcam Permissions

Host is Ubuntu 20.04, guest is Ubuntu 20.04. I have added the host integrated webcam through the Virtual Machine Manager's "Add Hardware" button. An error message appears while attempting ...
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2 votes
1 answer
813 views

How do I install swtpm on Ubuntu 21.10?

I added the virtual tpm2.0 to the machine but it keeps giving me this error? I'm using Ubuntu 21.10. It's saying now Unable to find 'swtpm_setup' binary in $PATH no such file or directory I did ...
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0 answers
75 views

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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1 vote
0 answers
626 views

Unable to connect to libvirt qemu://system

I am trying to setup a GPU passthrough for KVM but I've been facing this egregious problem the whole time. Basically, it's telling me to verify whether libvirt is running or not. Unable to connect to ...
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0 answers
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All RAM is used by virtualbox after launching ubuntu 20.04

I have Oracle Virtualbox on my windows 11. I configured instance to have 20GB RAM, use 8 CPUs and to have 100GB memory. I installed there ubuntu 20.04 LTS. The problem is, that I can't use it, as it's ...
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How do you enable VFIO / Ubuntu 21.10

I'm trying to get my GPU to run through a VM I created on Virtual Machine Manager. All the tutorials on this either make the GPU run specifically on the VM, are for Ubuntu 20.04, or are just really ...
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0 votes
0 answers
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Install package libvirt-dev? [duplicate]

I want to install the package libvirt-dev but it depends on a specific version of libvirt0, how can I switch back to version 6.0.0-0ubuntu8.14? ~> sudo apt -y install libvirt-dev Reading package ...
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0 answers
150 views

Virt-Manager NAT network interfaces stop working if host connection is restarted

I'm running Ubuntu (Mate) 20.04 on a workstation and I often use virt-manager to host various virtual machines for testing purposes (not for production VMs). I have found that if networking on my ...
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2 votes
1 answer
155 views

Boinc keeps getting an error/notice saying "virtual box is not installed" on Ubuntu

Trying to crunch some work units from Atlas/LHC@Home, and I keep getting the "virtual box is not installed" error. In Ubuntu 18.04, I installed the following packages that were in the Ubuntu ...
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1 vote
0 answers
160 views

Does Waydroid run in a virtual machine? [closed]

I haven't found information regarding VM-support in Waydroid, but there's at least a related Github pull request. I don't currently run Ubuntu or any of its derivatives on my main machine. I have ...
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0 votes
1 answer
38 views

Ubuntu qemu Display output to logfile

we install our Ubuntu 20.04.3 with packer and qemu. Since we are working without a display output, the question now is whether it would be possible to put the output into a log file. We activated the ...
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-2 votes
1 answer
116 views

VBS(Virtualization Based Security) on Linux, Kernel protection using hardware based virtualization. Is it planned to be embedded in a distro?

https://www.linux-kvm.org/images/4/40/01x05-Jun_Nakajima-Kernel_Protection_Using_Hardware-Based_Virtualization.pdf We have already VBS(Virtualization Based Security) in Windows 11. I do need that ...
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0 votes
1 answer
136 views

Gnome Boxes, why does the Next button not appear when creating a VM?

I've used VirtualBox in the past, but I'm trying to migrate to Linux-native applications as much as possible. My host system is running Ubuntu 21.10, and I have installed Gnome Boxes 40.3. I want to ...
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2 votes
1 answer
524 views

Which Android emulators or Android virtual machines run well on Ubuntu 18.04 and 20.04 or later?

BlueStacks is a really easy-to-use (and freeware, apparently) Android emulator that runs well on Windows or Mac, but isn't made for Linux. I was able to get it to run in Ubuntu here by running it ...
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0 votes
0 answers
29 views

inodes become overwritten, fsck required many reboots on Ubuntu Server (ProxMox)

I'm using a 4TB WD Red (WD40EFAX) HDD for the main storage on my ProxMox instance, which runs a few Ubuntu Server 20.04.3 VMs. After writing anywhere from 5-500GB of data to this drive, eventually a ...
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0 votes
1 answer
216 views

Poor performance of virtualization on ubuntu 21.10 (virt-manager)

just by switching from 20.04 to 21.10 I get a poor performance on virt-manager, and sometimes it freezes. Just by moving a window around I can see that it lags a lot. I tried many times to move to ...
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