diff --git a/bsp_q7s/fs/SdCardManager.cpp b/bsp_q7s/fs/SdCardManager.cpp
index 9e5d05bc..f8da9bee 100644
--- a/bsp_q7s/fs/SdCardManager.cpp
+++ b/bsp_q7s/fs/SdCardManager.cpp
@@ -508,9 +508,9 @@ bool SdCardManager::isSdCardUsable(std::optional<sd::SdCard> sdCard) {
 ReturnValue_t SdCardManager::isSdCardMountedReadOnly(sd::SdCard sdcard, bool& readOnly) {
   std::ostringstream command;
   if (sdcard == sd::SdCard::SLOT_0) {
-    command << "grep -q '" << config::SD_0_MOUNT_POINT << " ext4 ro,' /proc/mounts";
+    command << "grep -q '" << config::SD_0_MOUNT_POINT << " ext4 rw,' /proc/mounts";
   } else if (sdcard == sd::SdCard::SLOT_1) {
-    command << "grep -q '" << config::SD_1_MOUNT_POINT << " ext4 ro,' /proc/mounts";
+    command << "grep -q '" << config::SD_1_MOUNT_POINT << " ext4 rw,' /proc/mounts";
   } else {
     return returnvalue::FAILED;
   }
@@ -519,18 +519,9 @@ ReturnValue_t SdCardManager::isSdCardMountedReadOnly(sd::SdCard sdcard, bool& re
     return result;
   }
   result = cmdExecutor.execute();
-  if (result != returnvalue::OK) {
-    int exitStatus = cmdExecutor.getLastError();
-    if (exitStatus == 1) {
-      readOnly = false;
-      return returnvalue::OK;
-    }
-    return result;
-  }
-  auto& readVec = cmdExecutor.getReadVector();
-  size_t readLen = strnlen(readVec.data(), readVec.size());
-  if (readLen == 0) {
+  if (result == returnvalue::OK) {
     readOnly = false;
+    return result;
   }
   readOnly = true;
   return returnvalue::OK;