When running "efibootmgr -v" I get
Boot0008* proxmox HD(2,GPT,8e487f4f-e967-470e-bd3f-18cf38e33ea7,0x800,0x200000)/File(\EFI\proxmox\shimx64.efi)
Where do I have to edit GRUB boot options, opening /etc/default/grub is not the file I need to process the name change on the boot drive, I...