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Setup VirtualBox and create new Linux VM

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My Host is Windows 10. Here's the step to install VirtualBox and setup a CentOS VM. 1. Download VirtualBox and install. Download link : https://www.virtualbox.org/wiki/Downloads 2. Download Linux. My default choice always CentOS. Download link : https://www.centos.org/download/ I am choosing CentOS 7, as this round, I intend to setup TripleO to perform my OpenStack "lab". My CL210 subscription ended before the Support could fix the lab issue. Yes, this is not related to this article, but just my ranting. 3. Launch VirtualBox, and create new VM. There's no CentOS selection, so I am choosing Redhat as the closest option. Choose the right RAM size for your VM. Create new virtual hard disk. I normally use the default settings. This round I am using fixed-size. Pick your disk size. Hit the create button. 4. Network settings Click on the Settings icon of your VM. Go to Network. The NAT by default is setup. We will not touch it. This is the