fix bug

lvm_operations_tkinter.py

@@ -31,8 +31,9 @@ class LvmOperations:
             else:
                 result = subprocess.run(
                     ["sudo"] + command_list if root_privilege else command_list,
-                    capture_output=True, text=True, check=True,
-                    input=input_data
+                    stdout=subprocess.PIPE, stderr=subprocess.PIPE, encoding='utf-8', check=True,
+                    input=input_data,
+                    stdin=subprocess.PIPE if input_data else None
                 )
                 stdout = result.stdout
                 stderr = result.stderr