Tootfinder

Successfully got the openSUSE Pi5 abomination booting off a WD VelociRaptor 10kRPM SATA hard drive that uses more power than the entire rest of the computer!
Things are different in openSUSE-aarch64 land compared to Raspbian:
1. videocore loads a grub executable, so it feels like a PC when it boots
2. there's no /boot/cmdline.txt (on mmcblk0p1 or elsewhere)
3. the usual `grub2-mkconfig -o /boot/grub2/grub.cfg` / update-grub command autodetects current root and silen…