Questions tagged [virtualization]

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

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Move existing Ubuntu 13.04 to a virtual machine on Windows 8

I currently have dual boot Windows 8 and Ubuntu 13.04 on a Dell XPS 13 laptop. Ubuntu has a major problem with display drivers (screen backlight) that I haven't been able to solve, so I'm looking for ...
Christopher Gillis's user avatar
2 votes
1 answer
4k views

How can I share the host's network interface with virtual machines so that they appear on the same subnet and use the same DHCP?

I am moving my virtual machines from Hyper-V on Windows Server 2012 R2 to KVM/libvirt/etc on Ubuntu 20.04, and I need to recreate the network configuration I had before. I have had no problems ...
Brandon Staggs's user avatar
1 vote
1 answer
29k views

ubuntu on 14.04 hyper-v connection problem

I recently download the new disk of 13.04 of 32bit. I have Hyper-v on windows 8 64bit. I try to operate 13.04 on hyper-v but I can't connect to the network. I have already set at hyper-v manager that ...
Tal's user avatar
  • 394
1 vote
1 answer
2k views

19.10 Ubuntu host entirely freezes during Windows 10 qemu install

On Ubuntu 19.10 as a host, I'm trying to do GPU passthrough to Windows 10 as guest. I successfully isolated my GTX 1060 and passed to the insides of a VM in virt-manager (libvirt doc) (home page). ...
Guerlando OCs's user avatar
1 vote
2 answers
2k views

How to start GNOME session from chainroot?

I have used cowbuilder to set-up a chainroot with ubuntu+1 (essentially minimal ubuntu installation in a sub-folder, which you can "change" into, for example for building packages in a clean ...
Dima's user avatar
  • 9,817
1 vote
1 answer
1k views

How do I add space to LVM's root partition without shutting down my VM?

I'm using vmware and want to add space to a VM without shutting down the system by simply adding space to the existing drive. How can I accomplish that?
flickerfly's user avatar
  • 7,279
1 vote
2 answers
21k views

How to enable virtualization on booting? (Ubuntu 13.10) [duplicate]

I want to use VirtualBox but it is giving me the error VT-x/AMD-V hardware acceleration is not available on your system. And in the virtual box settings, I am not able to open accelerator tab as it's ...
Confuse's user avatar
  • 131
0 votes
1 answer
229 views

launch a VM on Ubuntu

On Ubuntu 14.04, I installed VirtualBox on which I have created 2 Ubuntu virtual machines. Does Ubuntu provide a way to launch the virtual machine I want at a particual moment ? Is there any ...
NiceMan's user avatar
0 votes
1 answer
589 views

Problem with VM on macOS Monterey 12.4

I'm trying to install a Linux virtual machine on a macOS Monterey 12.4 to take some courses on Udemy and I'm having a problem. I leave a link with a series of images (they may or may not be useful, ...
Bruno Lopes's user avatar
0 votes
2 answers
8k views

Unable to connect to libvirt. (xubuntu)

Error message while opening VMM: Unable to connect to libvirt. You need to install openssh-askpass or similar to connect to this host.
sneaky's user avatar
  • 151
-3 votes
1 answer
2k views

Will Ubuntu use my full RAM in dual boot? [duplicate]

When I run Ubuntu in dual boot will I still be able to use my full 4 GB RAM if I am not running Win 7 at the same time?
USER_James_bond's user avatar
97 votes
11 answers
261k views

How do I unmaximize full screen view in virt-manager?

After activating full screen view for a virtual machine in virt-manager there is no obvious way to un-full screen. Any ideas?
Anders Wallenquist's user avatar
43 votes
2 answers
83k views

What is the "/dev/xvda1" device?

When I type mount on the root of my Ubuntu system I get the output /dev/xvdal on / type ext4 (rw,noatime) I want to know what is the meaning of /dev/xvdal in this?
Gaurav Agarwal's user avatar
35 votes
1 answer
188k views

What is IOMMU and will it improve my VM performance?

My Motherboard's chipset supports this feature IOMMU, i've read (but not really understand) that it improves the VM performance by letting the VM make use of the actual physical hardware instead of ...
Uri Herrera's user avatar
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27 votes
6 answers
90k views

Ubuntu Hyper-V Guest Display Resolution

Good afternoon, I am trying to set up an Ubuntu guest on a Hyper-V server. I am relatively new to Linux so please bear with me, the VM is a test machine to get the hang of things and give Ubuntu a ...
user221048's user avatar
26 votes
5 answers
81k views

How to resize virtual machine disk?

Is there anyway to resize a virtual machine's disk? Say increasing the disk size from 32GB to 64GB. I am running KVM/Qemu on Ubuntu server 11.10 64bit. Thanks.
Tong Wang's user avatar
  • 443
26 votes
5 answers
41k views

Extra mouse buttons not working in virtualization (VMware/VirtualBox, ubuntu host)

I'm trying to run VMware Workstation and/or VirtualBox on Ubuntu. The virtual machines are working perfectly in both applications, except for the extra mouse buttons (forward/backward). In Ubuntu the ...
mika209's user avatar
  • 263
21 votes
4 answers
102k views

How do I enable multiple cores in my virtual enviroment?

I've installed Ubuntu in a virtual environment using Oracle VM VirtualBox Manager and it works great. However I'd like to enable multiple cores - as seen in the image below my Windows machine has 2 ...
Hasse Andersen's user avatar
20 votes
3 answers
101k views

Add physical disk to KVM virtual machine

I'm setting up a file server (nas4free) as a KVM virtual machine on a Ubuntu Server 12.04 system. How do I add physical hard drives directly to the VM so they can be used by the guest (nas4free), but ...
evan's user avatar
  • 201
18 votes
4 answers
44k views

Group 'libvirtd' does not exist while installing QEMU-KVM

I am using Ubuntu 17.04 and linux kernel 4.11.3 on a server. The system operates on x86-64 architecture. I was using the Ubuntu documentation to install KVM linked here Install KVM. I have ...
Arnabjyoti Kalita's user avatar
15 votes
4 answers
40k views

How to share a VirtualBox virtual machine with users of the computer

I have a computer with Ubuntu 14.04, with several user accounts. In one of those accounts, I have a virtual machine in VirtualBox. I would like to share that virtual machine with the other users of ...
user246185's user avatar
  • 1,047
12 votes
1 answer
74k views

vmware network interface not detected

I installed ubuntu server 14.04 LTS on a virtual machine (vmware, win host). The VM has internet access (given a port-id, adaptertype E1000E and a MAC). Sadly ubuntu was not able to detect the device ...
NaN's user avatar
  • 1,415
12 votes
5 answers
82k views

Virtual Audio Cable For Ubuntu

I am looking for a Virtual Audio Cable program to pipe audio through. Surely there must be a Linux version or something similar to these awesome Windows programs... http://software.muzychenko.net/...
Buford T. Justice's user avatar
12 votes
5 answers
66k views

KVM Virt-Manager Error: No active connection to Installed on

When I tried to install new virtual machine in virt-manager, virtualization - localhost (QEMU) is not connected. It shows Error: No active connection to installed on. How to fix this problem.
aditya's user avatar
  • 121
11 votes
6 answers
48k views

No sound in 12.04 on VirtualBox

No sound when installed in VirtualBox. When I boot from the live CD in Windows, sound works fine on my speakers. When in boot the live CD in VirtualBox it does not see my speakers. In sound properties ...
john crisp's user avatar
11 votes
1 answer
30k views

Why am I getting a black screen when booting VM using qemu?

When I try to boot a virtual machine using: qemu-system-x86_64 -m 1024 -cdrom /host/iso/ubuntu-13.10-desktop-amd64.iso -name mac -hda ~/ubuntu Iget a black screen just after the installation begins(...
Sagar Patni's user avatar
11 votes
5 answers
11k views

Best virtualization solution for running Windows 7 as a guest?

I depend upon Ubuntu for most of my work but I still need Windows 7 for some applications such as Office 2010 Casual Gaming Adobe CS4 and other windows softwares that are not available on Ubuntu ...
gkt's user avatar
  • 255
11 votes
2 answers
48k views

How to properly configure Virt-Manager (QEMU/KVM) with Windows guest

I'm currently switching to Virt-Manager (QEMU/KVM) and leave VirtualBox behind (as it is slow), but I find Virt-Manager hard to configure. In VBox and VMware, all you have to do is install the guest ...
Küroro's user avatar
  • 235
11 votes
3 answers
51k views

Is there a way to create a Windows virtual machine on Ubuntu Server?

When I look for documentation about how to create a Windows VM on an Ubuntu host, the only articles I can find are articles about Ubuntu Desktop, not Ubuntu Server. Is there a way to create a Windows ...
Phil's user avatar
  • 301
10 votes
2 answers
14k views

9p (libvirt/QEMU) share modes

Can anybody explain what share modes - default, mapped, passthough, squashed - mean in libvirt/QEMU configuration? I've got this share in passthrough mode. I see that inside VM it is owned by vagrant:...
anatoly techtonik's user avatar
9 votes
3 answers
6k views

Can I virtualize a pre-installed Windows 7?

I am considering buying a new computer with Windows 7 (64-bit) pre-installed. Would it be possible to install Ubuntu (preferably 64-bit) dual-boot on such a machine, and then, using VirtualBox / ...
SpashHit's user avatar
  • 1,456
9 votes
1 answer
6k views

Is there any "Ubuntu touch" vmdk/iso for trying on VirtualBox?

I have Genymotion and VirtualBox installed on my Ubuntu 15.10 with which I can explore almost-all the mobile android Operating Systems. I am very much exited to try out Ubuntu touch in the same way ...
Severus Tux's user avatar
  • 9,856
9 votes
6 answers
82k views

Is there an open source alternative to Vmware vSphere Server? Like a Ubuntu or similar Distro with virtualization hosting built in?

I am looking at turning my old Dell 2650 and 2950 servers into Vmware vSphere Servers, however vSphere is very very expensive. Is there an open source alternative that provides the same performance ...
Strago's user avatar
  • 141
9 votes
2 answers
20k views

Libvirt Qemu password

I have Ubuntu 16.04 installed as command line and a week or two ago wanted to try using KVM. As a part of the KVM install using sudo apt-get install qemu-kvm libvirt-bin virtinst bridge-utils cpu-...
jb61264's user avatar
  • 481
9 votes
3 answers
21k 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 ...
Elka's user avatar
  • 93
9 votes
3 answers
27k views

IPv6 does not work over bridge

I installed Ubuntu 14.04 server a week ago. I use it as a virtual machine host (tasksel installed). meaning am running it with kvm + libvirt. I have set up the same bridge I had in 13.10. auto p4p1 ...
Niklas Hagman's user avatar
9 votes
2 answers
7k views

How to run Ubuntu 16.04 ARM in QEMU?

My goal is to run Ubuntu 16.04 (ARM) in Qemu (on Ubuntu 16.04 x64 host). I tried to follow this -old- tutorial without success: Home directory not accessible: Permission denied pulseaudio: ...
lepe's user avatar
  • 1,406
8 votes
4 answers
22k views

VirtualBox stuck on "Starting Virtual Machine"

I just got a new work laptop but I am having a lot of difficulty getting VirtualBox to run on it. It basically fails to start the virtual machine when I try boot it and remains stuck on "Starting ...
Michael Aquilina's user avatar
8 votes
2 answers
16k views

Ubuntu Server 18.04 LTS cannot change resolution in Hyper-V

I am testing Ubuntu Server 18.04 LTS using a Hyper-V VM running from Windows 10 1709, but so far I have been unable to change the console resolution. I have already installed the virtual services, ...
badger_8007's user avatar
7 votes
3 answers
20k views

KVM: High host CPU load after upgrading VM to windows 10 1803

I'm running an Ubuntu 16.04 server with KVM/libvirt/qemu and Windows 10 virtual machine. After upgrading Windows 10 to the latest 1803 version (April 2018 Update), i noticed a slowdown in the VM ...
giox069's user avatar
  • 271
7 votes
1 answer
43k views

KVM - Create a virtual machine with 2 bridges interfaces

Can someone please let me know to create a VM using KVM with 2 bridged interfaces? I have a server that has Eth0 and Eth1 configured and connects to 2 separate networks. I'd like to create a VM within ...
Shailan's user avatar
  • 73
7 votes
3 answers
24k views

How do I boot Ubuntu Cloud images in vmware?

I want to run an Ubuntu cloud image on on VMWare. I just need to know how to set the OVF properties in a way that VMWare understands in order to pass parameters to cloud-init. What I've done ...
Graham's user avatar
  • 614
6 votes
1 answer
6k views

How to install Kubernetes Locally via Minikube

Trying to learn more about Kubernetes I tried to install a standalone instance. If you try to run minikube terminal? suggest installing it through snap. sudo snap install minikube kubectl snap info ...
Pablo Bianchi's user avatar
6 votes
2 answers
16k views

grub rescue / move folder

I made a really silly sudo mv /* /some_folder move command on my remote server vm ubuntu 12.04 that moved my boot folder to /home/.../somefolder/boot I can access this folder via a ...
Alexphys's user avatar
  • 241
6 votes
4 answers
13k views

moving windows 7 to a virtual machine

Ive decided to switch from my existing dual boot solution, to just running ubuntu and having windows 7 in a virtual machine for those times that it absolutely has to be windows. Ive been looking at ...
richzilla's user avatar
  • 12k
6 votes
4 answers
12k views

How to run libguestfs-tools tools such as virt-make-fs without sudo?

The project page http://libguestfs.org/ claims that we can do operations without sudo, which is awesome. However, if I try it out: sudo apt-get install libguestfs-tools mkdir sysroot # Just a test ...
Ciro Santilli OurBigBook.com's user avatar
5 votes
3 answers
18k views

What is the best type-2 hypervisor in Ubuntu (14.04) to run a mix of Windows and Linux VMs? [closed]

I need to create lab contains Windows 2008R2 domain controller with Linux servers and workstations with different roles installed. Hence I need a hypervisor (type 2) for the same. My laptop does ...
Kuntal K. Basu's user avatar
5 votes
1 answer
6k views

How do I scroll-back in a virt-manager virtual machine console?

I have been using virt-manager to manage a few KVM guests fruitfully on my computer so far. It's simple and quite viable. Nevertheless, up to now, I haven't found a way to scroll back lines ...
user183394's user avatar
5 votes
1 answer
5k 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 ...
Gabriel Staples's user avatar
4 votes
2 answers
24k views

KVM GPU passthrough: group 15 is not viable. Please ensure all devices within the iommu_group are bound to their vfio bus driver.'

I followed https://mathiashueber.com/windows-virtual-machine-gpu-passthrough-ubuntu/. However, there's just one thing I did not follow: I left noveau instead of the official driver, because if I do as ...
Guerlando OCs's user avatar