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I'm using Kubuntu 15.04, VirtualBox 4.3.26 This assumes that the sd card device is /dev/mmcbl0 , and the output .vdk will be sd-card.vmk : sudo VBoxManage internalcommands createrawvmdk -filename ./sd-card.vmdk -rawdisk /dev/mmcblk0 Not sure this is the best way to fix permissions, but it worked: sudo chmod 777 /dev/mmcblk0 sudo chmod 777 ./sd-card.vmdk ...


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The reason why it doesnt work, is that the virtual machine is using a generic virtual CD/DVD ROM driver. The actual hardware is abstracted from the VM and all it knows is that there is a CD/DVD ROM device is present. The reality is, there might not actually be hardware there. It could just be an .ISO or even another virtual drive. Does this mean it cant ...


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What you might consider, is looking at a DigitalOcean container. Containers are a form of a Virtual Machine, but the kernel is on the host of the VM, which means that the size of the container and the resource usage is lower. There are a lot of other container providing services, so do some research on that.



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