Kali Linux not in BIOS Menu on Acer Aspire 3-a315
 

Another OS reset the nvram of my computer and now i cant find Kali Linux in the BIOS Menu where i can choose my OS to boot, i am still able to boot into kali using the grub of my external ssd though.
Is there a way for Kali to write itself into the BIOS again or can the BIOS auto-detect OSs somehow?

I have a Acer Aspire 3-a315-42 Laptop running Windows 11, Ubuntu LTS 22 and Kali of my internal SSD and another Backup Ubuntu LTS 22 on a external SSD

You need to use efibootmgr to reset the boot sequence in nvram.