diff --git a/.config/linux/system/host/fsight/Configuration.nix b/.config/linux/system/host/fsight/Configuration.nix
index 048afcc..f6be877 100644
--- a/.config/linux/system/host/fsight/Configuration.nix
+++ b/.config/linux/system/host/fsight/Configuration.nix
@@ -5,6 +5,13 @@
 		./HardwareConfiguration.nix
 	];
 
+	# Grub.
+	boot.loader.systemd-boot.enable      = lib.mkForce false;
+	boot.loader.efi.canTouchEfiVariables = lib.mkForce false;
+	boot.loader.grub.enable      = true;
+	boot.loader.grub.device      = "/dev/sda";
+	boot.loader.grub.useOSProber = true;
+
 	# Root password.
 	users.users.root.hashedPassword = lib.mkForce "$y$j9T$d4HfwutZr.eNHuLJYRuro/$7swZfgCNS6jEXHFCxsW5um/68jX9BRiiZD1BYcm/gD/";