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Setting up our VM
Now that we have our media and VirtualBox is installed, it's time to run through manually provisioning (technical term) our machine and installing CentOS.
In this section, we will be provisioning a small VM, but even that will come with the cost of processing power, memory, and disk space. Always ensure that you have the appropriate resources available for the machine you're trying to create. In this case, at least 50 GB of free drive space and a minimum of 8 GB of memory is advisable.