Climate Change is affecting all of us. http://www.climateprediction.net/ https://youtu.be/vrYEh81O-Vs?t=552 -> “How do we get more detailed information?” Computer Simulation -> http://www.ipcc-data.org/ Projects Since Climateprediction.net was launched the combined computing power of its users has allowed scientists to carry out […]
before i watch windows boot… i rather watch trees grow….did i mention that lxde can boot up in 10seconds? but does it work? With XP no… multiple crashes etc. pp.
i have the following problem… since i updated VirtualBox to 4.3.30, using USB 2.0 will make the VM crash. so i thought, maybe i should update the “extension pack” responsible for giving the VM USB 2.0 support also an upgrade […]
usually it works like this… the user sets upa Template (like basic WindowsXXX or Linux installation) and clone this template for various purposes (spezialize on…). in KVM it looks like this: su – root virt-clone –connect=qemu:///system –original CloneThisVM –name NameOfClone […]
“Error starting domain: internal error Network ‘default’ is not active.” how to permanently fix it: su – root; # become root virsh net-start default virsh net-autostart default Details: Error starting domain: Requested operation is not valid: network ‘default’ is not […]
Posted on October 4, 2014 by Dan Nanni Leave a comment source: http://ask.xmodulo.com/change-default-location-libvirt-vm-images.html Question: I am using libvirt and virt-manager to create VMs on my Linux system. I noticed that the VM images are stored in /var/lib/libvirt/images directory. Is there […]
gui-way: DO NOT USE ANY OTHER HARDDISK FORMAT THAN THE DEFAULT QCOW2!!! with VirtualBox it’s the same. THEORETICALLY they support Micro$oft’$ HYPER_V_DISK_IMAGE.VHD BUT PRACTICALLY THINGS WILL FALL APART QUICKLY! (broken/corrupted disk image) So just stick to the defaults and you […]
Ctrl+F1….7 (7 beeing grafical output)
You can not have VirtualBox and KVM running on the same host at once. If you want to do Android App development on Linux (which uses KVM for running the Emulator) then you have a problem 😀 KVM seems to […]
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 […]
Qubes OS Applications running in different security domains From Wikipedia, the free encyclopedia For other uses, see Qubes (disambiguation). Qubes OS Developer Invisible Things Lab OS family Unix-like Working state Current Source model Open source (except for Windows Support Tools)[1] […]
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 […]
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 […]
# 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 […]
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 […]
Houston… we have a problem… 1x cpu core are not enough… how do we poweroff the VM at midnight, increase the cpu cores 1->2, and power on that box, script-wise?
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 […]
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 […]
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 […]
Source: https://en.wikipedia.org/wiki/RAID#RAID_5_in_enterprise_environments “RAID 5 is seriously affected by the general trends regarding array rebuild time and chance of failure during rebuild.[56] In August 2012, Dell posted an advisory against the use of RAID 5 in any configuration and of RAID 50 with “Class […]
after win7 installation (copying files) has completed, win7 restarts displaying an ugly error with code: 0xc0000225 – means: Boot selection failed because a required device is inaccessible. [youtube=http://www.youtube.com/watch?v=UKO2QlU4he0] PLEASE MAKE SHURE THAT IO APIC is enabled!
THIS IS A WINDOWS exportVMs.cmd SCRIPT, BUT CAN BE EASILY ADAPTED TO WORK UNDER LINUX: you will have to make an entry for every vm. PRINCIPLE: 1. SAVE STATE (PAUSE VM) 2. CLONE TO BACKUP DIRECTORY (preferable on a NAS […]
can be done from gui. but forget about the “import/export appliance” stuff. it might work. it might fail. (thats the last time i tested it) since then fancy stuff like “screenrecording” has been integrated… but the core-basic problems… seem unfixed […]
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 […]
my windows 7 VMs in virtualbox had TERRIBLE, TERRIBLE network performance… … the prolem seemed to be ip6 + virtio drivers. if you want to use virtio drivers… disbale ipv6 in windows 7. also try disable tcp auto tuning: netsh […]
when using virtualbox, you sooner or later come to ask “what harddisk format should i choose?” SHORT: GO FOR VDI! EVERYTHING ELSE IS NOT PROPERLY SUPPORTED! Want to know why? Keep on reading: vmdk: is the VMWare “default” vdi: […]
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 […]
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 […]