So I want to install Debian 12 on my machine, and the installer just -kind of- worked. I couldn’t use the live USB with all the cool UI stuff, I had to use the normal installer without the whole DE. But that worked. I have Debian 12 now on my SSD. I can even access it through the “rescue mode” using the Debian USB as shown in the first picture. But actually booting from it is a whole other story. I can select it as a boot option, but it says that this drive doesn’t have an operating system on it. It can be seen in the second picture.

https://lemmy.blahaj.zone/pictrs/image/45b0bbef-6d3b-42be-a15e-7ad1cf9485c4.jpeg

Has anyone an idea on what could be going on here?