diff --git a/szl/src/main.rs b/szl/src/main.rs
index 669a29c..7c4abcc 100644
--- a/szl/src/main.rs
+++ b/szl/src/main.rs
@@ -7,6 +7,7 @@ extern crate log;
 mod netboot;
 
 use alloc::rc::Rc;
+use libboard_zynq::sdio::sd_card::CardInitializationError;
 use core::mem;
 use core::ptr::{addr_of_mut, addr_of};
 use libboard_zynq::{
@@ -78,7 +79,7 @@ pub fn main_core0() {
                  (C) 2020-2022 M-Labs
 "#
     );
-    info!("Simple Zynq Loader starting...");
+    info!("Modified Simple Zynq Loader starting...");
 
     #[cfg(not(any(feature = "target_kasli_soc", feature = "target_ebaz4205")))]
     const CPU_FREQ: u32 = 800_000_000;
@@ -99,7 +100,11 @@ pub fn main_core0() {
     let sdio0 = sdio::Sdio::sdio0(true);
     let fs = if sdio0.is_card_inserted() {
         info!("Card inserted. Mounting file system.");
-        let sd = sdio::sd_card::SdCard::from_sdio(sdio0).unwrap();
+        let sd = match sdio::sd_card::SdCard::from_sdio(sdio0) {
+            Ok(sd) => sd,
+            Err(_) => { debug!("failed to get sd card"); panic!() }
+        }
+        debug!("got sd card");
         let reader = sd_reader::SdReader::new(sd);
         reader
             .mount_fatfs(sd_reader::PartitionEntry::Entry1)