QEMU and KVM

VirtualBox is all well and good, but there are other options. Some people don’t like using Oracle software, and in the past the guest extensions (which enabled graphics acceleration and shared clipboards) were not freely licensed, meaning they couldn’t be bundled by distros and had to be installed separately.

This is no longer the case and most distros now ship with the required host and guest modules – but occasionally, host and guest modules become mismatched (if a guest distro includes older modules than the host is running, for example) and they must be installed manually. These can be installed – on all platforms – in a running VM by selecting Install Guest Additions from the Devices