Search for: virtualbox guest

E_INVALIDARG 0x80070057 Cannot register the DVD image ‘/usr/share/virtualbox/VBoxGuestAdditions.iso’ {b058bc48-c451-4cff-9db0-d01c70e99c28} because a CD/DVD image ‘/usr/share/virtualbox/VBoxGuestAdditions.iso’ with UUID {bb9b13c5-f90f-4589-b212-8b9e01f118f5} already exists. Solution: open the .VBOX file with wordpad: […] <DVDImages> <Image uuid=”{b058bc48-c451-4cff-9db0-d01c70e99c28}” location=”/usr/share/virtualbox/VBoxGuestAdditions.iso”/> […] Delete all entries between <DVDImages> and </DVDImages> lines. After deleting […]

0. linux headers (optional?) apt-get install linux-headers-$(uname -r|sed ‘s,[^-]*-[^-]*-,,’) virtualbox; # get sources for compilation Debian 8 “Jessie” VirtualBox 4.3.18 is packaged for Debian 8 “Jessie”. The virtualbox-* packages were moved to contrib at VirtualBox 4.2, as a non-free compiler […]

this happened while migrating an important VM from Windows Host to Linux host. What i did was i created a new VM with WinXP SP3 properties and manually added the harddisk of the VM that was moved between hosts. Make […]

# delete old vitualbox install package apt-get purge virtualbox # install & download package wget –no-check-certificate https://www.virtualbox.org/download/oracle_vbox.asc apt-key add oracle_vbox.asc echo “deb http://download.virtualbox.org/virtualbox/debian wheezy contrib” >> /etc/apt/sources.list apt-get update apt-get install virtualbox-4.2 dkms # you might also want the guest […]

in short: the nice fact is that citrix xen and virtualbox can use the same/similar PIIX3 controler, which makes moving VMs between them a matter of “how to copy the harddisk sector wise”. (MAKE SHURE VIRTUALBOX IS USING THIS CONTROLER […]

update 2022: next to the good old (non-destructive if used correctly) “dd” is still the way to go for benchmarking harddisks under GNU Linux. a simpler one is “gnome-disk-utility” also interesting but not very simple in installation & usage (complicated! […]

update: 2020-05: printer works – with ubuntu 12 as virtualbox 6.1 vm (should also work with ubuntu 16, untested) with printers and GNU Linux it is usually like this: plug & print … 3 days later, it actually printed a […]

if the user wants to take GNU Debian Linux (MATE Gnome2 Desktop) for a USB-Stick or VirtualBox test drive, check out the video instructions! pros: kind of easy to use (completely redone gui needs re-learning for all that were used […]

A complete set of elements: (a lot of software) apt-get install lxde A complete Debian LXDE desktop environment (starting from Debian 7.0 “Wheezy”): apt-get install task-lxde-desktop (also a lot of software… why do i need the open-jdk?) apt-get install lxde-common; […]

snapshots are stored inside the qcow2 harddisk file of the vm, which is good in terms of “simple”, just one file, where in virtualbox there is the disk.vdi and snapshots are stored in a separate folder as separate files. when […]

running esxi inside virtualbox vm is just a test, to play with it, unfortunately one will not be able to start vms on it, because of the lack of nested virtualization. (could/should work nested inside quemu-kvm?) the problem: should have […]

update: 2021-03 as the admin-users might have got to know. RedHat canceled long term support for CentOS8, and wants to go with CentOS8stream. so the repo for CentOS8Stream is https://ftp.halifax.rwth-aachen.de/centos/8-stream/BaseOS/x86_64/os/ (https should work, double check for typos) Phase1 setup of […]

problem: manually changing uuids is tidious and might not yield the result you want. unfortunately have not succeeded yet with integrating an old harddisk.vdi (same uuids) back into the template vm (same uuids) – so the recommendation is: reinstall os […]

Update: 2019.10 Zombieload is back. “This time a new variant (v2) of the data-leaking side-channel vulnerability also affects the most recent Intel CPUs, including the latest Cascade Lake, which are otherwise resistant against attacks like Meltdown, Foreshadow and other MDS […]

who is who? concepts: docker is written in Google Go by Docker Inc, SanFrancisco because it does not emulate any hardware – it is a linux container / sandbox or jail like Free BSD Jail or Solaris Zones or OpenVZ so […]

update: gaming inside kvm vm on GNU Linux host? YES! but TWO (2x) GPUs / dedicated grafix cards are needed! (or one one onboard gpu and one PCIE dedicated GPU card) “QEMU/KVM VGA PCI Pass-Through of a dedicated AMD Radeon […]

The good news is: It supports OSX and Linux now. Windows & Linux Servers Microsoft Exchange, Microsoft SQL, SharePoint & Active Directory Microsoft Azure & Amazon EC2 cloud workloads Adding a machine running Windows Adding a machine running Linux Adding […]

“XFS is a high performance journaling filesystem which originated on the SGI IRIX platform.” SGI (Silicon Graphics) is out of business since 2009. “The addition of 3D graphic capabilities to PCs, and the ability of clusters of Linux– and BSD-based […]

smart first: one might want to check the SMART status of one’s harddisks to make sure, they are running under normal conditions and do not show signs of failure. pre-benchmark preparations: halt as much programs as possible: one SHOULD suspend […]

Wussten Sie dass die innovative und kostenlose Virtualisierungs-Software VirtualBox ursprünglich aus Deutschland, Weinstadt stammt? … bevor Sie von Oracle 2002 aufgekauft wurde. Logo of VirtualBox OSE, 2007-2010 VirtualBox was initially offered by innotek GmbH under a proprietary software license, making one version […]

Virtualization is a must, if you want to have 50x mail servers, 20x windows servers and 10x linux servers on the same machine 😉 meaning: if your requirements reach a certain complexity, you will not be able to get all […]