Finally gotten to the point where I am putting OSes on my new build (took 6 months to build - don’t ask; stressful work/life balance, and home life is difficult to say the least - politics; consistent consumption of QAnon videos, by someone in my house, with no areas available to build away from that person - had to build in the middle of the night after work).
Anyway, I am dual-booting Windows 10 and Linux Mint 20.2 but I don’t like the grub2 interface, I prefer a GUI so I installed rEFInd. That’s working fine; I can boot into both the Windows bootloader and grub from rEFInd. My questions start with cleaning up rEFInd. I know I can use pre-made themes, but the theme’s pre-included refind config files are definitely going to need to by modified. Does anybody know of a thorough guide on what settings do what?
Secondly, to prevent me needing to double select my Mint install (once in refind and then again in grub), how do I pre-select Mint in grub and auto boot after a 2 second delay?
Thirdly, when I boot into Windows using grub I get an Asus logo (my motherboard) above the spinning Windows loading icon. When I boot from the Windows option in refind, I get the Windows logo above the spinning loading icon. I’m assuming grub is somehow passing off a parameter to the Windows bootloader to get the Asus logo? What parameters would I need to pass via refind to do the same.
Fourthly, I would like to dive more deeply into the inner working of (U)EFI; does anyone know of guides online or books heavily devoted to the topic?