On Mon, Nov 04, 2024 at 11:19:50AM -0500, Stefan Monnier wrote: > > If I boot from the USB stick (isohybrid image) in Legacy mode then it > > all **appears** to work, installation completes, but then the system > > won't boot. > > What kind of boot loader did you install? `grub-efi`, `grub-pc`, > something else?
I'm not given a choice, it just installs whatever it thinks is right (I assume). > Does your Debian install's boot fail in exactly the same way if you ask > your firmware to boot using legacy BIOS? > Yes, I just tried that, set 'Legacy only' in the BIOS and I get to the same non-working, blank screen. > > I don't see how I can opt to either "Always boot using legacy BIOS > > mode" or "Always boot using UEFI". > > In my firmware, I can/could choose which boot mode to activate. > So on the Debian side I installed `grub-pc` and on the firmware side > I activated the legacy mode. That made it boot successfully using > legacy BIOS mode. > Yes, I can select 'legacy only' in the BIOS but I don't see anwhere that I can select `grub-pc` to install. > > How would I "Boot the install using legacy BIOS, then manually change > > the install to use grub-efi", I can't see anywhere in the installation > > process that would allow me to do this. > > That's why I said "manually". > > > Stefan > > -- Chris Green