Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [virtual-machine]

A virtual machine (VM) is a guest Operating System running in a completely isolated environment within a normal host operating system. Modern virtual machines are implemented with either software emulation or hardware virtualization or (in most cases) both together.

0
votes
1answer
13 views

RHEL KVM stuck when trying to create VM under VMware Fusion

I am trying to use KVM on RHEL 7 VM but after I try to create a new VM it goes well until I click Finish button, at that moment the window stuck and does not respond anymore, so I can't create a VM! ...
0
votes
0answers
24 views

What Hypervisor can Access my GPU on Arch? [on hold]

I am about to get a fairly capable laptop (lots of ram and cpu) which will be running (Arch) Linux and I want to be able to run a Windows virtual machine for the purpose of playing games. For that ...
0
votes
1answer
15 views

How can I get the windows installation in a virtualbox in ubuntu host to have full resolution as the original monitor?

I've installed virtualbox with the following command $ apt install virtualbox Then I installed Windows 7 in the virtualbox. But I notice that even though there are very high resolution options in ...
0
votes
0answers
14 views

Failed to create pipeline: no element “autoaudiosink”

I have windows 10 vm running on kvm on an Arch Linux installation. When I run view it with virt-viewer and I try to watch youtube in a browser, it shuts virt-viewer down with the error: GSpice-...
1
vote
0answers
23 views

How to start X server in Debian Wheezy mips running on qemu?

I created a debian mips virtual machine by downloading qcow2 images from here. I then started the virtual machine by qemu-system-mips \ -m 256 \ -M malta \ -kernel vmlinux-3.2.0-4-4kc-malta \ -hda ...
0
votes
2answers
30 views

Can't install windows guest on virt-manager

I can't seem get a windows guest installed on virt-manager. When I start the machine before the install cd loads I get a blue screen with code SYSTEM THREAD EXCEPTION NOT HANDLED. Here's the logfile ...
1
vote
0answers
11 views

CentOS 7 KVM host with two bridges

I currently have a CentOS 7 host with a single NIC and would like to be able to use this NIC for two different types of bridges. The host (CentOS) machine currently is currently pulling DHCP from my ...
0
votes
0answers
16 views

Bluetooth Speaker not recognized via USB

I want to update the firmware of my Anker Soundcore 2 Bluetooth speaker. The required software can be downloaded from: https://www.anker.com/update-firmware As the software is not available for Linux,...
0
votes
0answers
17 views

yocto Xen-Guest-Image-Minimal filesystem setup question

I have used poky/yocto project to create a xen-guest-image-minimal for Xen 4.9.0 (Ubuntu Server 18.04) running on a Xeon i586 processor. I am now preparing to create config file for the guest... and ...
1
vote
0answers
24 views

Possible limiting factor during upgrade of Fedora VM - not disk or cpu or network? [duplicate]

I'm upgrading a VM from Fedora 29 to Fedora 30. I triggered the update from inside GNOME Software. It downloaded the upgrade, and asked to reboot. It started installing... atop shows the qemu ...
0
votes
2answers
90 views

Virtual Machine Linux OS

I have a few Linux virtual machines running on this computer, and if I look at cat /proc/cpuinfo It is able to tell me the model name for the host system. Will this affect the performance of the "...
1
vote
1answer
40 views

Trying to SSH to remote server from VM Ubuntu

I need to ssh into a remote server. I set up a fresh Ubuntu install in VirtualBox for that purpose. First of all I generated my public key: ssh-keygen -b -4096 Then tried to ssh: ssh remote_user@...
0
votes
0answers
38 views

qemu-system-x86 --enable-kvm Windows 2k12 R2 stuck at windows logo

I am having an issue with kvm-qemu. Host: Ubuntu Guest OS is win2k12 R2. When the VM is booted, some times it get stuck at windows log or it pass the windows log & get stuck at a black screen. I ...
0
votes
2answers
38 views

virsh preboot script

I am running a virtual machine that requires vfio access to a PCI card. Using this script I am able to successfully bind the PCI device and its iommu group to vfio-pci, which then lets me boot up the ...
2
votes
0answers
33 views

What virtualization platform does provide dynamic memory allocation?

I need a virtualization platform for Linux host that supports Dynamic Memory Allocation. By Dynamic Memory Allocation I don't mean Memory Ballooning where we can request memory from a running VM (...
2
votes
0answers
87 views

How to route traffic through VPN only accessible within VM (without a bridged adapter)?

I have an interesting situation where I have a corporate VPN that can only connect through a specific (outdated) version of Ubuntu (and/or Windows) using a vendor-supplied client that creates a VPN ...
0
votes
0answers
11 views

Booting Android-x86 thru KVM while on a Pendrive-installed Debian 9

short version: Tried running KVM on a pendrive-installed Debian 9. All attempts result in the virtual machine running slowly if at all. long version: I'm currently running a pendrive-installed ...
0
votes
0answers
26 views

“Disk I/O error” when trying to run OS via QEMU on Pi

I am trying to run Windows 98 on QEMU on my Pi using a project I found here: https://www.hackster.io/314reactor/windows-98-wrist-watch-15ecfd . When I run qemu-system-i386 -localtime -cpu 486 -m 96 -...
0
votes
1answer
64 views

Is there something which a container can't be used for while a Linux virtual machine can?

When would you choose to use a Linux virtual machine instead of a docker container? Is there something which a docker container can't be used for while a Linux virtual machine can? Is it correct ...
-7
votes
1answer
63 views

Is chroot an example of application virtualization in Linux?

I am not very certain about the concept of Application/Process Virtualization. To help with that, what are some examples of application virtualization in Linux? (https://en.wikipedia.org/wiki/...
2
votes
4answers
186 views

Lightweight desktop environments to replace GNOME for CentOS?

For a project I need to write and execute Ansible scripts in a Linux environment (CentOS). Though using the command line and vi is interesting, I need to use graphical file explorer and Visual ...
1
vote
1answer
23 views

Virt-viewer fullscreen with 2 monitors in dwm or i3

Is there a way to start virt-viewer -f domain in DWM or i3 so it automatically fills all (2 of) my monitors as it does in gnome? When I try now virt-viewer open both screens on 1 monitor on top of ...
2
votes
1answer
368 views

VirtualBox Error : Kernel Driver not installed(rc=-1908)

I am currently using Ubuntu 18.04 and VirtualBox GUI Version 5.2.18 and I faced the following bug: Kernel driver not installed (rc=-1908) The VirtualBox Linux kernel driver (vboxdrv) is either ...
4
votes
1answer
63 views

Virtualbox: install a x64 Windows OS from Ubuntu?

I was thinking about making a Virtual Machine, but the description of VirtualBox from the Software installer say: VirtualBox is a free x86 virtualization solution allowing a wide range of x86 ...
-3
votes
1answer
39 views

Can the virtual machines created by Docker be used in a standalone way without Docker?

Docker can creat virtual machines to be used as nodes in swarms. Can the virtual machines created by Docker be used in a standalone way without Docker, or are they only usable by Docker? For ...
-7
votes
1answer
71 views

Does Docker work with VirtualBox but not with KVM/QEMU?

Docker can creat virtual machines to be used as nodes in swarms. The machine drivers contains VirualBox but no KVM/QEMU. Does it mean that virtual machines created by KVM/QEMU can't be used as ...
1
vote
0answers
31 views

How can I use multiple mounted folders in KVM?

I have a KVM-guest, where 5 folders should be also accessible on the host machine under a single folder. How can I do that with a single mount point? The folders on the vm are: /var/log/apache2 /var/...
2
votes
0answers
41 views

Compress VirtualBox Linux Virtual Machine

I am trying to create a VirtualBox linux virtual machine on which I want to mainly run Wine to install a windows application. I managed to install Lubuntu 18.04.2, since it is the lightest Ubuntu ...
0
votes
1answer
82 views

ssh asking for a password but not accepting it

I'm trying to scp through a virtual machine but when the guest terminal asks for my host user password it simply does not accept my real user password. Is the machine asking for another entry? The ...
1
vote
2answers
35 views

Change CPU count on live Linux VM

Is it possible to change the number of VCPUs on a KVM virtual machine on Linux without stopping it first? The Linux kernel has calls for addition and removal of CPUs (CPU hotplug in the Kernel) for ...
0
votes
1answer
80 views

Cursor jumps to left corner (windows 10 vm - kvm)

So I have a Windows 10 VM running on Arch Linux and it is working fine with 1 Display. When I add the second video tag with virsh edit VM-name, and get the two displays, the mouse starts moving around ...
1
vote
1answer
78 views

How do I shut down detected virtual machines on Mac OS?

I haven't used VirtualBox probably since 2016 and today I dusted it off and of course I needed to install an updated version, but I soon got this message: The installer has detected running virtual ...
0
votes
0answers
23 views

1 NFC Device found but won't list it

I am running a VM of Kali Linux. I have an ACR122U NFC Card Reader. One problem I have been having is that when I attach the NFC reader to my PC and run nfc-scan-device -v, it returns "1 NFC device ...
0
votes
0answers
33 views

Qubes-OS transfer files from and to HVM

I can't find in the documentation how to transfer data from and to the HVM in Qubes-OS. When a normal AppVM is created, it has the Qubes Tools installed so easy copy and paste, and transferring files ...
0
votes
0answers
90 views

Xrandr increase resolution black screen

When I try to increase the resolution in my virtual machine (Xen), running a debian distribution (Kali/Parrot in this case), I get a black screen. I use xrandr, because in the GUI, the max resolution ...
0
votes
0answers
90 views

Qubes-OS install Qubes support tools in HVM to fix screen resolution and copy paste

I want to install a fully virtualized machine (HVM) with Kali Linux in Qubes-OS. The installation itself was a bit bumpy but I managed to install it correctly. Now, the issue is that I want to ...
0
votes
0answers
24 views

Unable to uncapture the mouse pointer in QEMU KVM on CentOS 7

I am unable to see the mouse pointer on the console while on KVM Virtualization. I have tried the Ctrl-L+Alt-L but that does not work.
0
votes
1answer
71 views

How does Docker run GUIs?

I wrote some Java desktop applications and thought I'd run them with Docker to learn about containers. I got the Java applications into a Docker container with an ubuntu image. And that's when I ...
0
votes
0answers
13 views

Diskimage (qcow2) size on NFS in the context of virtualization

We are running a KVM virtualization platform with NFS as storage backend. The disk images are qcow2 files (This is "as-is" and we cannot change the setup). Now we need to move a rather large VM with ...
0
votes
1answer
32 views

During automated RHHI installation, what do they mean with 'Virtual Machine Mac address'

When I want to run the ansible scripts for automatically installing RHHI on my physical (RHEL+KVM based) hosts. They ask to edit a json file in which I am required to give the FQDN and MAC address of ...
0
votes
1answer
44 views

Fedora 29 qemu time problem

Since i upgraded my workstation from fedora28 to fedora29 i encountered a problem with my virtual machine which is running on my workstation. I am using this virtual machine for browsing in the ...
1
vote
1answer
55 views

CPU usage increases on all guests if 1 guest has high usage (QEMU-KVM) [closed]

The point is that if I utilize the CPU on 1 guest, all the other guests see increase in CPU usage. I'm testing with stress-ng, but it's visible with normal workload as well. I really don't know if ...
0
votes
0answers
111 views

After installing Clear Linux on VMware Player 15, it launches the installer again

I'm trying to download clear linux on my VMware player 15. I got windows 10. But each time I press "install", it installs the files of the OS, and then I press "Reboot" when it's finished, but it ...
0
votes
1answer
265 views

Why is a machine of type i440fx created when I specify q35 and how do I get q35 to work?

I need to create a Windows VM with a Q35 machine type. However, in spite of specifying q35, and i440fx machine is created. created with: sudo virt-install \ --name wintest \ --boot uefi \ --ram ...
1
vote
1answer
26 views

C-state in VM: needed or no?

Would it cause any difference if the cstate is enabled or not on a VM? cat /sys/module/*_idle/parameters/max_cstate So not on the hypervisor, rather on a VM. Any virtualization, question in ...
1
vote
0answers
36 views

VMware Workstation guests NAT adapters always got the same IP address

I'm on Windows and created three Ubuntu 18.04 Desktop virtual machines using VMware Workstation. This is my NAT and custom host-only network configuration. This is my guest VM's network adapters. As ...
0
votes
1answer
61 views

Can I run a .vdi file for Windows 8.1. virtual machine in KVM/QEMU or VMM?

Can I run a .vdi file for Windows 8.1. virtual machine in KVM/QEMU or VMM? Do I need to convert the file from .vdi to some format familiar to KVM/QEMU? What are the steps, if possible? I have ...
-1
votes
1answer
24 views

What are the processes started for running a virtual machine under Virtual Machine Manager?

I am trying to figure out what processes are run when I start a KVM virtual machine under Virtual Machine Manager. Are these all the processes started for that purpose? What do they do respectively? $...
-1
votes
1answer
151 views

What is the relation between Virtual Machine Manager and KVM/QEMU?

What is the relation between Virtual Machine Manager and KVM/QEMU? The Wikipedia links says In computing, the Red Hat Virtual Machine Manager, also known as virt-manager, is a desktop virtual ...
0
votes
1answer
188 views

virsh: Connected to domain <name> Escape character is ^]

I'm having an issue with viewing output from a virtual machine installed via virt-install. I first used this method, but it left me with the following immediately after running: Starting install... ...