Hello after recent upgrade [2025.5.1 ] I rebooted my NUC and on boot it stays with black screen. No Grub, nothing. It is installed on WD SSD disk. All data seems to be on disk. I tried this disk on another NUC, but it seems same. Is thee any chance to repair boot? I coppied backups, unfortunately I am not sure if I set encryption on them or not 
Is there any repair tool for HAOS?
Issue was solved by reinstalling system and backup recover. Now I do not know if I should try again update