{ ... }: { # Don't use the systemd-boot EFI boot loader. # Necessary for dual boot Windows boot.loader.systemd-boot.enable = false; boot.loader = { efi = { canTouchEfiVariables = true; efiSysMountPoint = "/boot"; }; grub = { enable = true; devices = [ "nodev" ]; efiSupport = true; extraEntries = '' menuentry "Windows" { insmod part_gpt insmod fat insmod search_fs_uuid insmod chain search --fs-uuid --set=root FE74-E293 chainloader /EFI/Microsoft/Boot/bootmgfw.efi } ''; }; }; }