

Under Controller click on the optical disk icon to add a new disk image and choose the CentOS iso file. Choose the virtual machine you just created and click on the Settings (gear) icon.


Click on the “New” button to create a new machine. Now we have to set up VirtualBox so that we can run CentOS. Select your desired mirror link to download the file to your machine. Now, we will need the img file of CentOS to install it on our Virtual Machine.
