Search for: virtualbox guest

Update: as of 2019-01 and CentOS 7.6 the below setup may fail by now, for those reasons… BUT you CAN compile the latest kernel and all modules yourself (DON’T BE SHOCKED! YOU CAN DO IT! IT’S NOT ROCKET SIENCE!… just […]

update: 2019-01 if you are having trouble getting VirtualBox Additions to run on your guest vm, you might want to checkout this article and compile your own kernel. how to compile latest kernel under debian: https://dwaves.de/2017/06/28/debian-compiling-the-latest-kernel-compile-customize-kernel-download-install-linux-kernel-headers/ it is a little […]

VirtualBox Fenster – Scaling deaktivieren Wenn der Fensterinhalt einer Virtualbox Instanz plötzlich unscharf angezeigt wird, liegt dies an dem aktivierten Skalierungsmodus. Gar nicht so einfach zu finden, wenn man die Menüleiste innerhalb des Virtualbox Fensters deaktiviert hat. Problem: Darstellung des […]

ubuntu 10.12’s unity 3d desktop performes rather slow on my QuadCore Xeon OSX 10.6.8, so i thought i try to improve performance by properly installing the guest additions: open a terminal in ubuntu: 1. optional, but i recommend it because […]

make sure guest additions are installed (on the guest vm) it is a simple matter of the user not being in group “vboxsf” and thus denied usage of vbox filesystem service (fs) lsb_release -a; # tested on guest Description: Debian […]

right away… as you can see in the logs… it kind of get’s stuck during 00:00:00.810858 Audio: Initializing PulseAudio driver so it has something to do with the Audio-translation from Windows-Guest to Linux-Host. This could also have to do with […]

If you get this error: “VERR_PDM_NO_USB_PORTS” it might be MISSING DRIVERS ON THE GUEST SIDE! 😀 (do NOT blame Oracle or Virtualbox for that) this is how one might get one’s USB Devices to be detected by the Windows Guest […]

Ctrl+F1….7 (7 beeing grafical output)

in theory it should work like that: (extension pack is now free for non-commercial use btw!) Short answer: Execute sudo adduser YOURUSERNAME vboxusers, log out and log in again. Long Answer: Close virtualbox Execute in bash: sudo adduser YOURUSERNAME vboxusers […]

first you have to share a folder with the VM:  reboot the VM on the linux-guest open up a terminal: 2. check out what your user id is (uid) cat /etc/passwd|grep YourUsername 3. become root & mount mount -t vboxsf […]

before upgrading virtualbox additions, one might need to uninstall the old version (this should actually happen automatically, when VBoxLinuxAdditions.run of new new version is run) (actually this script will do it automatically for you, if you want to upgrade) # […]

to find out what version of the guest additions are installed on your linux guest, open up terminal type in: modinfo vboxguest filename: /lib/modules/3.2.0-4-amd64/updates/dkms/vboxguest.ko version: 4.1.18_Debian license: GPL description: Oracle VM VirtualBox Guest Additions for Linux Module author: Oracle Corporation srcversion: […]

Hi all, if you are using a Mac OSX as your Virtualbox host-system you might have had problems with the host not beeing able to pass the USB-Device to the (Windows or other) Guest. 1. shutdown the VM 2. plugin the […]

  if your debian-lxde is stuck to a fixed resolution…   make shure that: LXDE auto resize screen VirtualBox Package Installation After setting up your new Lubuntu VM you’ll need to update the sources.list and install several components. Lubuntu doesn’t […]

This feature seems broken under vboxmanage -v VirtualBox 5.1.8r111374 atleast it does not display anything in my installation… (even with VM having Guest-Additions installed) get a list of all resource usage under Linux: Open Up a Terminal, you could hit […]

there are bugs in cpus! so don’t always say “the problem sits in front of the computer” – that’s simply not always true – if the hardware and software leaves the factory – with problems “preinstalled”. the problem started with […]

I wanted to use photoshop on this virtual machine… some photoshop filters need grafic card accleration. what i did was go into safe-mode (F8 on startup of windows) increase the Video Memory from 128MB to 256MB… and the damn thing […]

if the spice tools are installed, clipboard sharing between host and guest (copy & pasting text and even images (!)) should (!) work 😀 What is not working virtualbox-easy-style (yet) is easy-host-to-guest-and-vice-versa-file-transfer (which IS VERY ANNOYING (RedHat are you listening? […]

first off the praise: kvm-qemu is a high performance nicely scriptable virtualization system if it works, it can do pretty things 🙂 IN CONTRAST TO iESXI SH** WARE CLONING A VM IS A EASY AS: virt-clone –original debian12 –name debian12-clone […]

a bit of a warning: the NAT fowarding script is a bit of hardcore kvm “hack” that might not work (kvm is under development), wish to kvm and virsh-manager developers: please please integrate an easy way (like in virtualbox) for […]

the error message basically means: the VM’s screen can not be auto-resized because the VBoxGuestAdditions kernel module drivers software was not properly build & installed. the solution: rebuild & reinstall the VBoxGuestAdditions (kernel module) properly: hostnamectl; # tested on guest […]

so RedHat developed the virsh manager, but not qemu itself. https://stackoverflow.com/questions/43704856/what-are-the-differences-between-qemu-and-virtualbox QEMU is a generic and open source machine emulator and virtualizer. When used as a machine emulator, QEMU can run OSes and programs made for one machine (e.g. an […]

got the server cheap from ebay. has unfortunately only 4x 2.5″ SAS (3.5″ would be better = more storage) one SAS drive already faulty. using the native Hardware RAID10 (4x 75GByte Hitachi HGST Ultrastar C10K600 450GB (HUC106045CSS600) 2,5″ SAS2 64MB […]

tested on: Operating System: CentOS Linux 7 (Core) CPE OS Name: cpe:/o:centos:centos:7 Kernel: Linux 4.15.9 Architecture: x86-64 # using vboxmanage –version 5.2.6r120293 ah lovely isn’t it? BSOD Win98 style… errors were NOT the exception, they were THE NORM (and still […]

usually host-shared-folder get auto-mounted during boot via vboxsf kernel module. symptoms: # manually mounting the by-host-shared-folder “projects” # as user with uid 1000 and groupid 1000, results in: mount -t vboxsf -o uid=1000,gid=1000 projects /media/sf_projects # also try: mount -t […]

this is a very very basic sequential harddisk write test performed on host and guest. there are multiple ways, how you could improve the performance: Use fixed size disks Allocate RAM and CPUs wisely Install the Guest Additions enable host […]

https://youtu.be/LC0aSk6HEsw first of all: i (still) love VirtualBox. The ability to migrate VMs between Windows and Linux servers is really cool, and it is still free to use. NO other Virtualization software can do that! 🙂 and that is exactly […]

WARNING! WARNING! WARNING! BACKUP BEFORE UPDATING ANYTHING! it is also recommended, to do extensive testing of updates on a 1:1 test-system before updating production! while security is important so is speed/availability/uptime/downtime. upgrades especially of kernel and virtualbox need to be […]

host: hostnamectl Static hostname: CentOS1.localdomain Operating System: CentOS Linux 7 (Core) CPE OS Name: cpe:/o:centos:centos:7 Kernel: Linux 4.14.12 Architecture: x86-64 vboxmanage -v 5.2.6r120293 1. shutdown the guest VM (Windows 7 64Bit) 2. make sure in the settings you have usb […]

the best about samba: thanks for samba, it provides users with a fast (of course depends also on harddisk speed) rock-solid no-limit-to-maximum-users file-server for maximum file-transfer-and-sharing-and-storage productivity (and they will USE that T: temp drive for EVERYTHING! prepare for TERRABYTES […]