i didn't save the file with the force option :|

src/functions/partition.rs

@@ -102,11 +102,11 @@ pub fn partition(device: &str, mode: &str, efi: bool) {
 fn part_nvme(device: &str, efi: bool) {
     if efi {
         exec_eval(
-            exec("mkfs.vfat", vec!["-f".to_string(), format!("{}p1", device)]),
+            exec("mkfs.vfat", vec![format!("{}p1", device)]),
             format!("format {}p1 as fat32", device).as_str(),
         );
         exec_eval(
-            exec("mkfs.btrfs", vec![format!("{}p2", device)]),
+            exec("mkfs.btrfs", vec!["-f".to_string(), format!("{}p2", device)]),
             format!("format {}p2 as btrfs", device).as_str(),
         );
         mount(format!("{}p2", device).as_str(), "/mnt", "");
@@ -154,7 +154,7 @@ fn part_nvme(device: &str, efi: bool) {
             format!("format {}p1 as ext4", device).as_str(),
         );
         exec_eval(
-            exec("mkfs.btrfs", vec![format!("{}p2", device)]),
+            exec("mkfs.btrfs", vec!["-f".to_string(), format!("{}p2", device)]),
             format!("format {}p2 as btrfs", device).as_str(),
         );
         mount(format!("{}p2", device).as_str(), "/mnt/", "");