Questions tagged [virtualbox]

VirtualBox is a platform-independent open-source virtualization software available for Linux, OS X, Solaris and Windows hosts. Guest additions need to be installed to automatically adjust the guest screen resolution. USB is supported through a proprietary extension.

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usb 3.0 (xHCI) Controller choice produce “Failed to open a session”

i am using ubuntu version : NAME="Ubuntu" VERSION="20.04.2 LTS (Focal Fossa)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 20.04.2 LTS" VERSION_ID="20.04" ...
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How do I resize/re-partition my hard disk after deleting Oracle Virtual box?

I downloaded Virtual box, installed Windows 10 pro on the virtual machine I had allocated 100GBs of disk space to. When going to disks > highlighting the UBUNTU partition (1TB) clicking on the cogs ...
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Cannot enable second monitor on virtualbox

I'm trying to set a second monitor on a windows host, ubuntu 20.04 virtual machine, the second monitor is created but I cannot enable it its always disabled nad in the ubuntu host there is no second ...
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How do I make 1920x1080 screen resolution permanent? Lubuntu 20.04 Virtualbox Windows host

I found this: xrandr --newmode "1920x1080" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync xrandr --addmode Virtual1 1920x1080 xrandr --output Virtual1 --mode 1920x1080 Gets ...
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How do I write to solve the shared folder permission denied Lubuntu 20.04 to Windows 10 [duplicate]

I find many solutions but I don't know enough Linux to understand what to write specifically for my own machine. That is why I wrote the question so specifically because I don't know how to write in ...
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Unable to install Guest additions in VBox 6.1

Linux newbie here. Host OS is Ubuntu 21.04. I want the Guest OS to be Kubuntu 21.04 but when I try to install Kubuntu into VBox, the screen is chopped off and I can’t resize it to see all the buttons ...
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I wanted to try Lubuntu but can't install guest additions

I get this error "can't find guest additions try installing them manually." Manually? What does that mean? Why can't it find the guest addition it's right there in the optical drive. I see ...
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Unable to resize my hardrive in Ubuntu [duplicate]

I am using virtual box and my Host Device is : Windows 10 Guest Device is : Ubuntu 21.04 I am new to Ubuntu and i have recently installed oracle virtualbox and used Ubuntu as my guest device. At the ...
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Virtual Machine Middle Mouse Click

I have tried searching and cannot find a definitive answer. The base problem is that when running ubuntu on a virtual machine, I cannot find a way to get the middle mouse button to work while using a ...
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1answer
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install ubuntu on VM

Hello I was trying to install ubuntu on my VM and when I got to the installation type I saw that everyone choose "erase disk and install ubuntu" but I wasn't sure what it is going to erase, ...
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Segmentation fault while installing ubuntu-20.04.2.0-desktop-amd64.iso

While installing ubuntu-20.04.2.0-desktop-amd64.iso in Oracle VirtualBox, got the below error, I have 140GB free disk memory in my laptop. Why is this error coming often, tried installing multiple ...
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VirtualBox VM black screen after disk resize

My VM was running out of space (I use Virtualbox) thats why I decided to inrease the storage size resize So I resized it using this screen but after that I couldn't fully boot up my VM again. What ...
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Run vagrant up with VirtualBox gives “VirtualBox is complaining that the installation is incomplete” in GitHub Codespaces

I am trying to spin up a vagrant VM to use as the working environment. When I try to spin up the machine, it keeps throwing me the error: The provider 'virtualbox' that was requested to back the ...
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Audio crackles when I run VirtualBox

Recently I'm having an issue for which audio crackles when I run VirtualBox in Ubuntu 20.04. If I then execute pulseaudio -k it does fix it (upon restarting programs), but still this workaround is not ...
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configuring two network interfaces on ubuntu 20.04

First a bit of background on the problem, I'm trying to create a dynamic malware analysis lab so I'm running inetsim on this ubuntu vm and I have a couple of other vm's on the internal network ...
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How to convert a large dynamic virtualbox VDI image to a small image file to write it into a USB drive as a portable installation?

I have a VirtualBox dynamic image of Xubuntu 20.04 of maximum size 70 GB. The current size of the image is 9 GB. When I try to convert it to a .img file with the command VBoxManage clonehd 'xubuntu....
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Black screen problem while using ubuntu on virtual box

I have been using ubuntu on a virtual box for a few months now. I wanted to increase the hard disk size for my virtual machine. So I changed it from 50 Gb to 130 Gb inside the Virtual Media Manager. ...
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How can I access the Internet from VirtualBox via mobile hotspot?

First up, let me clarify that I have gone through similar questions on the forum, but none appeared to address my problem. (I must confess, however, that not being familiar with the technical language ...
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Serial connection between 2 guest virtual box VMs using vagrant

I am currently testing the kernel inside the Master VM(Virtual Box) and I am looking for a way to establish a serial connection in order to redirect the dmesgs between the Master and the Slave(which ...
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/dev/input/mouse0: is not an evdev device

I have been trying to set up a QEMU + KVM configuration to run a couple of VMs on Ubuntu as the host. I even have been able to passthrough a GPU successfully to the guests. However, there seems to be ...
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Ubuntu PXE Setup On Virtual VM hosted in Virtual Box

I am trying to install a PXE setup in Oracle VM manager VM in ubuntu 20.4 Focal, but am facing two issues generally: The Copy Paste does not work in Ubuntu, so I'm unable to copy the yaml file Unable ...
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Ubuntu no longer works after VirtualBox update

I just updated my VirutalBox to the latest software, and since then I cannot get Ubuntu to load. It black screens on the login screen. I've tried several fixes other forums have mentioned such as the ...
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Apache2 - .app virtual hosting error

I am trying to host a xyz.app URL on Apache. I've configured everything on my server, but I am not even receiving anything on access.log. On the same server, I am already hosting .com website which is ...
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Internet connection suddenly down? Ubuntu 20.04 LTS

appreciate if anyone could help me. I install VMware workstation and oracle virtual box last week with each having the same ubuntu 20.04 LTS VM in it. It work well with internet connection via NAT (I ...
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How can I understand why an app is draining computer resources?

I’ve being using a VirtualBox Ubuntu 18.04 VM on a a MacBook Pro (MacOS Big Sur - 11.4) without any perfomance problem. Lately I’ve installed an application (Rabix composer), which gave me no problem ...
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Running Virtualbox 6.1.22 on Ubunti 21.04, I get 'Effective UID is not root' every time it try to start a VM

I'm running Ubuntu 21.04 with the default Virtualbox that comes with Ubuntu. VirtualBox Graphical User Interface Version 6.1.22_Ubuntu r144080 . It starts up fine, but when I try to start a VM, I get: ...
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ubuntu 20.04 does not start up properly in virtual box

Virtual Box is the latest version. I have windows 10. I setup ubuntu 64-bit and make everything as recommended, RAM, memory allocation. When I install ubuntu, the screen shows up, but no application. ...
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Ubuntu 20.04.2 on Virtual Box (Mac) - Flashing white screen, but no XOrg option

I recently installed Virtual Box running Ubunto. I'm on Mac, running the latest OS. However, once I log in, my screen flashes white, especially when I move the mouse cursor around. From Googling, it ...
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VirtualBox: Black blinking screen after detaching and re-attaching the VDI

I've been trying to solve a disk space issue, and one thing I did was detach my disk from within Virtual box settings, I then tried to re-attach the same vdi file but now when I boot the machine it ...
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How to enable copy-and-paste of a Ubuntu VirtualMachine running on MacOS host?

I am running a VirtualMachine (6.0.14) on MacOS 14.10.6, with Ubuntu 20.04 installed in the VM. I think I have installed the Guest Additions, and under Settings -> General -> Advanced I did ...
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Autorestart of VM in Virtual Box

I am unable to autostart my Ubuntu 20.04 VM. I followed the instructions on the VirtualBox website. The VM boots without issue if I use the VirtualBox app. Any ideas on how to proceed? I also have ...
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Ubuntu Server crashing inside virtualbox

I am running a Ubuntu Server guest on a Windows 10 host in Virtualbox. 2048MB Ram (host has 32GB) 4 CPUs (host has 4 cores, 8 threads) PAE/NX, VT-x/AMD-V enabled 128MB VRAM 10GB VDI disk Bridged ...
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I can't start a VirtualBox machine from a physical hard drive

I have a hard drive with an installed XUbuntu. I need to launch it in a virtual machine. I have followed this tutorial: https://www.serverwatch.com/guides/using-a-physical-hard-drive-with-a-virtualbox-...
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Error message: An error occurred in the underlying SSH library that Vagrant uses

The below error message is seen while running a playbook that uses a Vagrant environment to log in to the machine. An error occurred in the underlying SSH library that Vagrant uses. The error message ...
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Can't boot because root volume out of space (virtualbox)

Virtualbox hangs with a black screen while booting Ubuntu. I was running out of space on the root volume and needed to backup files to a shared drive on the host OS, but got an error that I didn't ...
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How to set up folder sharing with Lubuntu guest and Ubuntu host?

I've been using VirtualBox, currently at VirtualBox Graphical User Interface Version 6.1.16_Ubuntu r140961, for a while with several iterations of Ubuntu, currently using 20.04 as the host and two ...
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How do I make Ubuntu Linux full screen in Oracle Virtual Machine

I have installed Ubuntu in a virtual machine by following this article. I called the VM "myLinux", I succeeded to install it, but linux is not in full screen. I made some searches and tried ...
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I have removed VirtualBox but I forgot to remove VirtualBox extensions & guest additions

I removed VirtualBox from Ubuntu 20.04.2 but I had forgot to remove the VirtualBox extensions & guest additions before removing the VirtualBox packages. I have deleted the virtual machine and also ...
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What to do with the signed kernel modules after removing VirtualBox from Ubuntu 20.04?

I have removed VirtualBox because it makes python2 default in Ubuntu 20.04. But for running VirtualBox I signed some kernel modules. Now what to do with those?
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wpa supplicant daemon failed to start

I have installed Gorrilla Ubuntu on virtual box and I have a Ralink5370. I tried running: ifup wlan0 It returned this error How can I bring up the interface and allow devices to connect to the AP?
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Screen reader support during Ubuntu 20.04 server installation

I'm attempting to install ubuntu server 20.04 in VirtualBox on my Windows 10 host system. I managed to configure VirtualBox such that the virtual machine boots using the .iso file provided on the ...
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Need Help with VM Software

I am using Ubuntu 20.04 LTS I have been trying all day to set a VM software on my Ubuntu system, but it seems like no matter what I do, Virtualbox nor VMWare are working! I've given it my all, but can'...
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run VirtualBox with Kernel

I am on an unfortunate text adventure getting to run VirtualBox 6.1.22 under Ubuntu MATE 20.04 LTS. My key problem is, that I had to upgrade my (shiny new) machine to Kernel 12.4 (shiny new graphics ...
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Need to passthrough 2xGTX1660Super from Ubuntu host to Windows guest

I'm very new to Linux- I have the virtual machine up and running in virtualbox, but I can't find anything specific to getting the gpu's recognized by windows so I can install drivers- can anyone help ...
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Create bootable Ubuntu ISO from bootable USB?

I'm looking for help. Basically I have a bootable USB drive that has Ubuntu in it. The USB stick looks like this: USB folder I want to create a bootable ISO file from this USB, so that I can boot from ...
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I'm creating a Pass-trough GPU in Virtual Macine, need to understand what is “ dracut ”

@Hello , I'm studing to how to create the Pass-trough GPU in the Virtual Machine enviroment on Ubuntu 21.04. Following the steps on it, it tells to create in /etc/dracut.conf.d/ the file vfio.conf ...
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How to ssh onto a VirtualBox VM from a different computer within the same network?

I have two VMs on two different computers at home. On one of them (let's call it comp1; comp1 has a Windows 10 host with an Ubuntu virtual machine), I already set up the virtual machine's network such ...
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Oracle VirtualBox problem

I use Ubuntu-Studio 20.04.2 LTS. I installed Oracle VirtualBox 6.1 and, inside that VM, I installed MS-Windows XP-SP3 (directly from the original installation DVD). That VM worked so fine until... I ...
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1answer
159 views

How to setup the netplan for Ubuntu Server 20.04 for bridged connection running as VM?

I want to setup the netplan for a bridged network adapter in Ubuntu Server 20.04 running as a guest on a Windows 10 Desktop. The network adapter is currently not working as expected, it doesn't use an ...
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Ubuntu operating 18.04 but stored and named 1404- problem of increasing size of ubuntu on virtual box

I opened virtual media manager to increase size of my ubuntu because it doesn't want to open, but as I move the scroll to a higher value, it says failed to increase size, error message: Resizing to ...

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