we want to narrow down the stdout vs stderr

storage/badblocks.py

@@ -50,8 +50,9 @@ def chkDisk(disk):
              '-t', 'long',
              '-d', 'sat',
              disk]
+    with open(os.devnull, 'w') as DEVNULL:
         for c in (bb, smctl):
-        subprocess.run(c)
+            subprocess.run(c, stdout = DEVNULL)
     return()
 
 def main():