I am building an Oracle Virtual Box VM on a laptop. I have set the storage on the hard drive to 32 GB fixed. I run through the install to the reboot. When it comes back up it wants to reinstall CentOS 8 again and in the Installation Destination window the disc is still 32 GB but only about 1 MB is available. What am I doing wrong? I follow the book and videos to a tee but no beans. And why do I need to reinstall CentOS? I have set up VMs in VMWare just fine. I am new to Virtual Box. Can you help? thanks.