add some more error handling

src/main.rs

@@ -42,7 +42,14 @@ fn init_rootfs() {
     for (src, target, fstype, flags, data) in args {
         match system::syscall::mount(src, target, fstype, flags, Some(data)) {
             Ok(())=> eprintln!("Mounted {target}"),
-            Err(e)=> eprintln!("Bad mount: {e}"),
+            Err(e)=> {
+                eprintln!("Error: {e}");
+                let mut opt = Some(&e as &dyn std::error::Error);
+                while let Some(current_source) = opt {
+                    eprintln!("Caused by: {current_source}");
+                    opt = current_source.source();
+                }
+            },
         }
     }
 }
@@ -52,7 +59,7 @@ fn init() -> Result<()> {
 
     init_rootfs();
 
-    init_console();
+    init_console()?;
 
     platform::aws::Aws.init().unwrap();
     std::thread::sleep(std::time::Duration::from_secs(500));