diff --git a/install.json b/install.json
index de10585..f906be5 100644
--- a/install.json
+++ b/install.json
@@ -1,7 +1,7 @@
 {
-  "audio": null,
+  "audio": "none",
 
-  "bootloader": "grub",
+  "bootloader": "grub-install",
 
   "custom-commands": [
     "cd /home/junikim; git clone https://git.junickim.me/junikimm717/arch_rice.git",
@@ -15,9 +15,9 @@
 
   "filesystem": "ext4",
 
-  "harddrive": {
-    "path": "/dev/vda"
-  },
+  "gfx_driver": "All open-source (default)",
+
+  "harddrives": ["/dev/vda"],
 
   "hostname": "archlinux1-kvm",