Platform: Distro SNG7-FPBX-64bit-1707-1 with FreePBX 14 and Asterisk 14 as Standard Installation
Hardware: Lenovo IdeaCentre Q180 with 4GB RAM and 500GB HDD and Intel Atom D2700 @ 2.13 Ghz
Issue: System wont boot or display any error but simply seen cursor blinking after the BIOS lenovo logo. System boots normally without any key press or intervention if the USB memory stick used for installing the system is plugged-in.
There were no installation time errors and everything finished smoothly.
I know in Ubuntu it asks you which drive to install the bootloader (Grub) to. However, I’m not sure what CentOS uses for a bootloader off the top of my head. I too did an install of FreePBX from USB but I didn’t encounter your issue.
There are more manual options to choose during the install for setting up the various disk partitions. I would start looking around there.