![]() $ VBoxManage storagectl "clone1" -name "sata1" -add sata $ VBoxManage modifyvm "clone1" -nic1 hostonly -hostonlyadapter1 "vboxnet0" ![]() Settings file: '/home/fboender/VirtualBox VMs/clone1/clone1.vbox' Virtual machine 'clone1' is created and registered. Next, I created a new Virtual Machine: $ VBoxManage createvm -name "clone1" -ostype Debian_64 -register Once the VM was all set up, I shut it down, and cloned its harddisk: $ VBoxManage clonehd ~/VirtualBox\ VMs// ~/base.vdi Turns out it is possible to do just that! I had some problems with the steps in that article though, so here’s how I did it.įirst, I created a new Virtual Machine and installed it like I always do. Why couldn’t I just use a single base image for each Virtual Machine, and have VirtualBox perform copy-on-write whenever it made changes? That way, only the changes to the base image would have to be stored separately for each clone, saving lots of disk space. It always struck me as a waste that I’d have to clone an entire HD image whenever I needed a fresh install of a machine. Such an image will be magnified if the position of the object is within twice the focal length, or else the image will be reduced if the object is further than twice the focal length.Multiple VirtualBox VMs using one base image (copy-on-write)Īs a developer and systems administrator, I use VirtualBox a lot for building binaries, testing upgrades, etc. In contrast, an object placed in front of a converging lens or concave mirror at a position beyond the focal length produces a real image. A converging lens (one that is thicker in the middle than at the edges) or a concave mirror is also capable of producing a virtual image if the object is within the focal length. Such an image is reduced in size when compared to the original object.
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