Activate the tftp server on your Mac: To change the properties, edit the file /System/Library/LaunchDaemons/tftp.plist The default directory is /private/tftpboot. Make this directory accessible for everybody. sudo chmod 777 /private/tftpboot…

Keep one of these keys pressed at system start: ⌘ Command key ⌃ Control key ⌥ Option key ⇧ Shift Key ⇪ Caps Lock fn Function Key   C Boots…