On Fri, 2023-09-22 at 02:48 +0200, Wolfgang Pfeiffer wrote:
You have to find out what your "F" key is to enter your BIOS/UEFI boot menu - on my machine (Dell/Alienware) the key for that menu is F12 - you have to be very quick to press that key after powering on your computer - see your hardware manual - on- or offline - which F-Key you need ...
My UEFI configuration options allow me to set a timeout. It'll show a boot menu for so-many seconds before automatically carrying on booting the default choice. This is a "what to do now" choice, as opposed to making a permanent setting.
Bill, this is the configuration controls built into the motherboard, what people used to call BIOS settings, but often with a fancier interface. You get to choose your defaults, and which choices will appear, and a timeout period. You may even be able to put in more useful names, such as Fedora rather than drive 0, etc.
This is all before GRUB gets involved. When the motherboard's firmware boots Fedora (as opposed to any other choice), that's when it hands over to GRUB and the GRUB menu.
It's a bit of a pass-the-baton relay race.