Chris Green composed on 2024-11-04 12:36 (UTC):

> This continues from my "Failed Debian 12 install..." thread earlier
> today.

> I can't get the USB Installation stick to boot into the Debian
> installation process when I load it in UEFI mode.  If I boot the USB
> stick in UEFI mode it just takes me to the grub prompt.

> I suspect that this is why, when I boot from the USB stick in BIOS
> compatibility mode the resulting installation doesn't work.

> Any ideas what I need to do to get the USB stick to boot properly in
> USB mode? 

This has never happened to me, so I can do no more than speculate why.

How did you make that stick? If it contains Ventoy, try making a normal stick 
with
only the Bookworm .iso.

You might try pre-partitioning the NVME in GPT mode with ESP partition instead 
of
the current MBR mode.

It may be necessary to force UEFI boot mode by using the BBS hotkey during POST,
to get a list of devices from which to boot, and select a UEFI option matching
your USB device. It might be necessary to disable CSM for this to work.

Is a BIOS update available?

https://www.debian.org/releases/stable/amd64/ch03s06.en.html#boot-dev-select-x86
contains other options for booting an ornery UEFI BIOS. (I didn't read it 
through
to end before first send of this message.)

> The hardware is a Fujitsu Esprimo Q957 system with a 2Gb NVME disk
> drive.  Installation on a quite similar Fujitsu Esprimo Q556 system
> goes without a hitch (though that only has SATA drives).
-- 
Evolution as taught in public schools is, like religion,
        based on faith, not based on science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata

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