Software⏱️ 4 min read📅 2026-06-11

How to Fix: Testdisk: How to recover from "Partition: Read error"

Testdisk recovery issue with Seagate 6TB HDD and exFAT partition.

Quick Answer: Try re-running Quick Search and Analysis, then attempt to mount the disk again.

📋 Table of Contents

  1. ⚠️ Common Causes
  2. 🚀 How to Resolve This Issue
  3. 🎯 Final Words

The 'Partition: Read error' issue with Testdisk can be frustrating, especially when dealing with large volumes of data. This guide is designed to help you recover from this error and regain access to your Seagate 6TB HDD.

In this guide, we will walk you through the steps to fix the 'Partition: Read error' issue using Testdisk, and provide alternative methods in case the primary method does not work.

⚠️ Common Causes

  • The primary reason for the 'Partition: Read error' issue is due to the EFI partition being corrupted or damaged. This can happen when the HDD is not ejected properly, causing data corruption.
  • Another possible cause is the use of Testdisk without proper configuration or understanding of its options. This can lead to further damage to the partition table and make it difficult to recover data.

🚀 How to Resolve This Issue

Using Testdisk with Deep Search

  1. Step 1: Stop any ongoing file copying operations and ensure the HDD is disconnected from your Mac.
  2. Step 2: Open a terminal window and run the command `sudo testdisk /dev/disk2` (replace `/dev/disk2` with the actual device name of your Seagate 6TB HDD).
  3. Step 3: Select the partition table type as 'EFI GPT' and click 'Continue'.
  4. Step 4: Choose the option to perform a deep search on the EFI partition. This may take several hours or overnight, depending on the size of the partition.
  5. Step 5: Once the search is complete, look for any errors or warnings displayed by Testdisk. If you see an error message stating 'something != 1', it means the partition table is corrupted and further recovery may be difficult.

Using Testdisk with Quick Search

  1. Step 1: Stop any ongoing file copying operations and ensure the HDD is disconnected from your Mac.
  2. Step 2: Open a terminal window and run the command `sudo testdisk /dev/disk2` (replace `/dev/disk2` with the actual device name of your Seagate 6TB HDD).
  3. Step 3: Select the option to perform a quick search on the EFI partition. This will display two partitions: 'EFI' and 'MS Data'.
  4. Step 4: Choose the partition type as 'EFI' or 'MS Data', depending on which one is displayed. If you see an error message stating 'D(deleted)', it means the partition table is corrupted and further recovery may be difficult.
  5. Step 5: Confirm that all files are present on the HDD by typing 'P' and pressing Enter. Then, type 'Write' to overwrite the damaged partition table.

🎯 Final Words

If you have followed these steps and were unable to recover from the 'Partition: Read error' issue using Testdisk, it may be necessary to seek professional help or consider alternative recovery methods. Remember to always back up your data regularly to prevent similar issues in the future.

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