Re: Unable to boot UEFI laptop from Debian 11 Live USB stick
Hi,
this problem is probably better served on debian-live@lists.debian.org
(or on debian-cd@lists.debian.org if you tried also a Debian installation
ISO).
Whatever:
Flacusbigotis wrote:
> The debian instructions basically say to do a normal cp of the hybrid iso
> unto the raw USB device as follows (assume USB stick is on /dev/sdf):
> cp debian11_hybrid.iso /dev/sdf
This is the currently advised method, indeed.
> In contrast, I am able to create the same for
> Knoppix 9.1 following their instructions.
Did you do the same as with the Debian ISO or did you use "flash-knoppix"
to install the ISO onto the stick ?
> BTW, in that laptop setup screen I see a note that says that Legacy Boot
> mode is not supported on the laptop.
Does this note appear unconditionally or does it show up only if the Debian
USB stick is present ?
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Far fetched idea:
What happens if you replace the partition table on the USB stick by a
GPT which marks only the small EFI partition ?
I.e. print the partition table of the USB stick, delete it, create a
new partition table as GPT and add a partition of the type for EFI
with start and size as printed from the original table.
(The way to express the EFI partition type differs from partition editor
to partition editor. See for example
https://wiki.archlinux.org/title/EFI_system_partition#GPT_partitioned_disks
)
The big partition of Debian ISOs encloses the small one, which is not
allowed in GPT. But the big one exists only to protect the ISO 9660
filesystem from partition editors. It is not needed for booting.
Have a nice day :)
Thomas
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