Upgrading a Mac Mini Detection System ISO
Use the following procedure to upgrade the Mac OSX Detection System ISO.
Copy the bootable image to a USB drive; Kingston USB flash drives are recommended.
Insert the USB drive into the MAC.
Connect the HDMI console to a Windows system.
Reboot the Mac Mini system from the console using the CLI
'reboot'
command.Hold down the keyboard "Alt" key after hearing the Mac’s startup chime.
Choose option 2 when prompted to make a choice.
Hold down the keyboard 'C' key to directly boot the image from the USB drive.
Note:
The upgrade process will take approximately 15-20 minutes.