Install CentOS on MBP 2019 I am trying to install CentOS  8 on my 2019 MacBook Pro 2019 with Catalina 10.15.4. I want to dual boot either with Catalina and CentOS.

Steps so far:


Partition with 500GB for CentOS 
Created a bootable USB Stick with CentOS 
Installed rEFInd


When I press the ⌥ Option while restarting, I can choose between my normal start volume and the USB Stick.

When I choose the USB,  I receive the message: "That start volume is not verified."

How can I get it to boot CentOS?
You can not install CentOS on the internal drive because CentOS does not have a driver needed to access the internal drive. AFAIK, drivers only exists for macOS and Windows. The Windows driver is part of the Window Support Software which can be downloaded from Apple by using the Boot Camp Assistant. The startup manager rEFInd is an exception, because rEFInd uses UEFI based drivers.

You could try installing CentOS to an external drive.