

sudo nano /etc/default/grubGRUB_ENABLE_BLSCFG=true to the bottomsudo grub2-mkconfig -o /etc/grub2-efi.cfg into the terminal and it should remove the duplicate entries






sudo nano /etc/default/grubGRUB_ENABLE_BLSCFG=truesudo grub2-mkconfig -o /etc/grub2-efi.cfg