diff --git a/libconfig/src/sd_reader.rs b/libconfig/src/sd_reader.rs
index 6a11ea9..0b6c23d 100644
--- a/libconfig/src/sd_reader.rs
+++ b/libconfig/src/sd_reader.rs
@@ -93,6 +93,7 @@ pub enum PartitionEntry {
 impl SdReader {
     /// Create SdReader from SdCard
     pub fn new(sd: SdCard) -> SdReader {
+        debug!("creating new sd reader from sd card");
         let mut vec: Vec<u8> = Vec::with_capacity(BLOCK_SIZE);
         unsafe {
             vec.set_len(vec.capacity());
@@ -186,6 +187,7 @@ impl SdReader {
         mut self,
         entry: PartitionEntry,
     ) -> Result<fatfs::FileSystem<Self>, fatfs::Error<Error>> {
+        debug!("mounting fatfs");
         let mut buffer: [u8; 4] = [0; 4];
         self.seek(SeekFrom::Start(0x1FE))?;
         self.read_exact(&mut buffer[..2])?;