Hass OS not showing up as boot option

hello,

Im trying to install homeassistant OS on my old laptop but after imaging it on the SSD it does not show op as a boot option. I followd all the steps in the generic x86-64 instalation guide, i got uefi and secureboot is turnd off. when i install ubuntu it just works but hassOS does not boot it directly goes to the bios.

I dont know if i am missing somthing or if sombody knows how to fix this?