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Questions tagged [virtualbox]

An x86 virtualization software package developed by Oracle (which bought Sun, which bought Innotek).

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Using a bridge, an LXC container can't ping router, but the host OS can

I've got a virtual machine running under virtualbox, and in that virtual machine I've got an LXC container I'm trying to bridge to virtualbox's NAT interface: ------------- ----------- -----...
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578 views

Increasing serial baud rate within Ubuntu under VirtualBox

I'm debugging a kernel module under VirtualBox with a guest and host OS as Ubuntu 10.10. I'm using the virtualbox serial port but I'm maxing out at the baudrate 115200. My grub config looks like this.....
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254 views

Logitech controller not passing into Centos virtual machine as joystick

I have a Logitech Dual Action Controller that I am trying to use in a Centos virtual machine (using VirtualBox). The controller is in "D" mode (according to the switch on the back of the controller) ...
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198 views

How to tell virsh: save state of VM and vdisk, but not attached disk?

I installed a fresh CentOS 7.2 guest (babybrighton) on my host (brighton), and then did this from brighton (where /dev/sdb is a physical device connected to brighton): virsh attach-disk --...
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725 views

perf cycles not supported

I am trying to use perf for profiling in a Linux virtual machine. However, I am receiving the following output: [vagrant@localhost ~]$ perf stat -d ls / bin boot dev etc home lib lib64 lost+...
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“xrandr: Failed to get size of gamma for output default” for Guest CENTOS 6.6, HOST OS Windows 7 enterprise

I am getting the following errors: xrandr: Failed to get size of gamma for output default Screen 0: minimum 640 x 480, current 1024 x 768, maximum 1024 x 768 default connected 1024x768+0+0 0mm ...
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434 views

Can I exclude some key bindings in VirtualBox?

I am running Ubuntu 14.10 as my host system. Then I have Virtualbox with Windows 8.1 as guest OS. I am using workspaces in Ubuntu and I want to run Virtualbox in fullscreen in one workspace and at the ...
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221 views

sharing folders in virtual box

I'm trying to run a Linux Mint guest inside a Linux Mint host(both 64-bit). I've installed Guest Additions etc. But I'm not able to access the shared folder. sudo mount -t vboxsf kernel /media/...
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11k views

vboxpci: IOMMU not found (not registered)

I'm running Arch with 3.6.10 kernel, When vboxpci module is loaded, it tells me vboxpci: IOMMU not found (not registered), But I checked my kernel config, I have the INTEL_IOMMU set already (I uses ...
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37 views

Sending all network traffic from a VM?

One VM is set the network card as internal in Vbox. I'm trying to send all it's network traffic to another VM with same internal card, transparently. Can iptables help? Here is the internal network ...
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VirtualBox Guest Additions installation on Kali Linux problem

I've installed Kali Linux on VirtualBox, host is MacOS. When i'm trying to execute ./VBoxLinuxAdditions.run command I get the following text: Verifying archive integrity... All good. ...
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653 views

How can I mount a VDI with snapshot?

Working on Linux Mint 18.1, VirtualBox 5.0.40_Ubuntu. I have a VDI file from a VirtualBox VM: ~/VirtualBox\ VMs/Win10x64/Win10x64.vdi I've taken a Snapshot: ~/VirtualBox\ VMs/Win10x64/Snapshots/{...
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402 views

How to run kernel in debug mode and wait for KGDB with Virtualbox and Kali Linux?

I am trying to debug a Linux kernel using Virtualbox, but I cannot get it working. Here is what I've done. Compile Kernel with the following configuration CONFIG_HAVE_ARCH_KGDB=y CONFIG_KGDB=y ...
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479 views

*REAL* zerofree equivalent for btrfs

is there any zerofree equivalent for btrfs ? and please don't give me sfill or cat /dev/zero >/tmp/file, this is not the same thing at all, be cause Zerofree finds the unallocated, non-zeroed blocks, ...
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83 views

VirtualBox keeps on giving me errors!

So I installed VirtualBox and used this guide After I followed this at the end I got some errors (xenial)cloud@localhost:~$ virtualbox WARNING: The vboxdrv kernel module is not loaded. ...
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Enable touch screen on CentOS 7

I have CentOS 7 installed as a guest OS inside VirtualBox running in a Windows 8.1 host machine. The host is a notebook computer with a touch screen. The windows host can accept touch screen ...
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651 views

Can't connect to Virtualbox VM's static IP which is in a different subnet from the hosts's IP, but statically routed to the host HW addr

I have a physical server running Ubuntu Trusty (14.04) at a data centre where they assigned one IP address, as well as a /28 block (16 IP addresses, 14 usable) from a different subnet. They said that ...
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1k views

Virtualbox and GPU Pass-trough: Device with host PCI address already attached to this VM

I have server with several GPUs. My idea is to attach them to different VMs in order to use that VMs in CUDA (or OpenCL) calculations. My setup: CPU: Intel Xeon E5-2670 GPUs: 1 x Radeon HD 7970 $ ...
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3k views

VirtualBox guest machine as a nginx host

I have VirtualBox 4.3.12 with Fedora 20 and nginx 1.4.7 installed. Machine has Bridged Network interface and pings can be done both ways: from host machine (Windows 7) using ping 192.168.0.15 (...
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713 views

Why doesn't ufw enforce firewall rules for traffic coming from Virtualbox VM

I've been running Linux Mint 17 on my laptop for a while and thought I had it locked down to not allow any incoming traffic through "Firewall Configuration" (ufw GUI)—I have also validated this from ...
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Oracle VirtualBox on Linux host with Windows guest running terribly slow

I recently got myself a new, more powerful workstation. With Linux Mint (now in version 19.1) as my main system and some programs (that my business depends on) only running on Windows, I also ...
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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 ...
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39 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 ...
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903 views

Issue while booting Kubuntu on VirtualBox: drm vmw_host_log vmwgfx error failed to send log

I have installed Kubbuntu as guest one virtualbox on Windows 10 and now when I want to boot it take a long time showing this message: [drm:vmw_host_log [vmwgfx]] ERROR Failed to send log What is ...
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Very slow login + very slow response - dbus error? - Ubuntu 18.04.1 LTS - on Virtualbox 5.2.18 r124319 (Qt5.6.3) - on MacOS High Sierra 10.13.6

This looks similar to dbus errors I see reported, but they are supposed to be fixed. The system is extremely slow performance, particularly at logon - even the console logon is very slow. There are ...
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461 views

osx virtualbox seamless mode

I have been trying to get virtualbox seamless mode working and am not getting adequate results. Background info: host: Mac OS "Kernel Version 17.6.0" virtualbox: "Version 5.2.12 r122591 (Qt5....
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438 views

Parrot OS: “Failed to start Light Display Manager”

i have recently installed Parrot OS on virtualBox, the installation was successful but as the system started booting, it stopped showing "Failed to start Light Display Manager". here is the systemctl ...
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2k views

VirtualBox iGPU Passthrough

I followed this quick guide to enable PCI passthrough using KVM on Fedora, the main steps are: Enable IOMMU and Virtualization on the motherboard Prevent my device from being grabbed by a module ...
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504 views

TL-WN722N with Oracle VirtualBox on Ubuntu 16.04

I am trying to setup the TL-WN722N connection over Ubuntu running in a Virtual Box. The later idea is to interface TL-WN722N with a cyclone V SoC running a lightweight Linux - Angstrom. Right now, I ...
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56 views

Adjusting gamma in VirtualBox guest (debian)

Using Kgamma5 in plasma5, I attempted to adjust the gamma of my debian guest OS inside virtualbox. My white levels seem too bright. No effect. I looked around, and while I found no specific info about ...
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440 views

cURL and wget cannot resolve hosts, but apt-get works

I've installed Ubuntu server 16.04 in a VirtualBox. If I try to install software with apt-get it works fine, but curl test.de or wget get.typo3.org/8.4.0 shows me that the host could not be resolved. ...
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299 views

gnome-shell crashes

since shortly my gnome shell crashes. All running applications were closed, for a short time the screen is black and I return to the login shell. I have no idea what program causes this error as it ...
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2k views

Arch Linux guest (VirtualBox): cannot configure X

I'm trying to install and configure Xorg on my Arch Linux virtual machine. I can start the X server with startx but when I try to generate the configuration file /etc/X11/xorg.conf with the command ...
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Kernel issue whilst installing VirtualBox

On my Fedora 24, after installing and running VirtualBox (from the VB repository) with this command : # dnf install VirtualBox-5.1-5.1.4_110228_fedora24-1.x86_64 $ virtualbox A pop-up window shows ...
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Genymotion suddenly stops with Segmentation fault (Core Dumped)

I am running Arch Linux (4.6.3-1-ARCH) with GNOME 3.20 . I installed genymotion from the AUR : https://aur.archlinux.org/packages/genymotion/ , Whenever I launch the application , After 2-3 minutes, ...
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140 views

Can you set an initial size to a Virtualbox Dynamically Allocated Storage Drive?

I want to set the drive so it acts as a fixed drive up until a certain size and dynamically resizes after that point. For example, set the device so that it has 8GB to start with, and once it hits 8GB ...
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440 views

Mouse auto-scroll (VirtualBox)

Problem: I am looking to add auto-scrolling--the function of panning a window after pressing the middle-mouse button--to my environment and all user applications. The best solution I've found is ...
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110 views

virtio network interface stops after wake

I'm running vagrant with the Virtualbox provider on my laptop and use the virtio network interface to mitigate super slow DNS lookups with the standard network device used by Virtualbox. Now putting ...
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265 views

Broken behavior when checking “3D acceleration”

I have installed Ubuntu 15.10 in a VirtualBox on a Windows 7 host. I have tried installing the Guest Additions both from the provided VirtualBox ISO as well as sudo apt-get install virtualbox-guest-...
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661 views

Using raw physical hard disk in virtual machine, with smart capability and true model number seen

Is it possible to add an entire physical hard disk to a VM, and inside the VM see the hard disk for what it truly is? In VMware Workstation 11.1, if I add a hard disk choosing SCSI, with "Use a ...
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2k views

Centos 6.6 not booting on Virtualbox on Windows host

I downloaded the QuickStart VM from Cloudera that has preinstalled Spark/Hadoop etc. I have been working on that for the last 4-5 weeks and it was running absolutely fine, but recently I had to ...
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0answers
950 views

How to update ip in hosts file automatically from a VirtualBox guest?

I have a VirtualBox guest running Debian with Bridged Adapter. The host is running on Windows 8. I would like to connect from the host to the guest through a specific port. I came up with the ...
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333 views

Automate a gratuitous ARP every x seconds

There may be another issue here, so any other questions or comments are welcome. I have a CentOS 6.6 VM running under VirtualBox. It is connected to a GNS3 topology using a UDPTunnel. Everything ...
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962 views

Virtualbox guest responding really slow over SSH, VBoxHeadLess stuck in 99.9% system time

I've been using Vagrant/virtualbox on a relatively new laptop with decent specs (16GB memory, Intel i7 4710HQ cpu, dual m-sata SSD). So far, with every guest I run, I encounter really high latency, ...
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52 views

guest owns NIC, host and other guests access via NAT

OK, this is a bit complicated. On my host OS, when Guest1 is running, I want any incoming connections to go to guest1. So from the outside the system looks like guest1. But I still need to access ...
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121 views

Keyboard error in Fedora 20 (virtualbox)

When I press the ALT key it also presses the CTRL key in the guest machine (Fedora 20). This prevents me from typing [ ] { } ~ ... and so forth. My current workaround is: After I press ALT I press ...
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477 views

Configuring default static routes with RIPv2

I am currently working on an assignment managing a smaller virtual network with virtual box and tiny core Linux. (Using quagga) I am supposed to let RIP handle the default routing, though I cannot ...
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0answers
2k views

virtualbox mail server postfix+dovecot

I'm setting up a mail server(ubuntu14.4 serverX64) for development/testing purposes (using virtualBox bridged-mode) and I just finished this tutorial and everything seams to work. Now I'm not able ...
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0answers
535 views

DNS works half of the time in Oracle VirtualBox and I can't even maintain /etc/hosts file

I have installed three Linuxes on same laptop and same VirtualBox and this is my success ratio with DNS: HortonWorks & CentOS. Worked for 5 minutes and never after that again. VM image ...
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0answers
521 views

Debian 64-bit sees less than 4GB of RAM

I have a Debian wheezy (7.4) amd64 virtual machine running under VirtualBox 4.3.10 on a Win7 x64 host with AMD A10-5700 processor. The virtual machine is configured with 16GB of memory (the host has ...