Not Bootable USB

[Aber56]

Good morning Mr Geckolinux,
I'll start by saying that I'm a complete Linux novice, but I've started trying some distros linux. Thanks to YouTube I got to know Spirallinux: I've never found such a refined and effective distribution. Thanks for your work.
Now the question: having several generations of notebooks, I'm led to try all the configurations to find the most suitable one. Even though I tried ISO Image with Rufus, Balena, Linuxmint SW, Ventoy, the KDE spiralinux images, Cinnamon Gecko are rejected as Not bootable, while Spiral Cinnamon and Mate, and Gecko Patheon normally work: where am I wrong!
Thank you for your attention and I wish you a good holiday
Aber

[geckolinux]

Hi there, please note that GeckoLinux and SpiralLinux are different projects.

Please use one of the following recommended tools to create the bootable USB:
https://github.com/geckolinux/geckolinux-project/wiki#how-to-create-a-bootable-geckolinux-usb-stick

If there are still problems with booting, please include a detailed description of the error.