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Solution that Works Step-by-Step Troubleshooting
Fix File System Check Exit Code 8 on External Hard Drive
Fix File System Check Exit Code 8 on Macintosh HD

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"What is the reason for 'File System Check Exit Code Is 8'?"

Have you recently encountered the error File system check exit code is 8 on your system? To understand this error, it's essential to know what a File System Check is. A File System Check aims to prevent or stop small, undetected issues from worsening and can occur automatically during system boot-up.

One of the most important repair tools for macOS is Disk Utility's “First Aid.” You can access it to fix minor disk issues. However, in some cases, users receive an error message during the system check. The external hard drive or the Macintosh HD shows "File System Check exit code 8."

The error "File System Check Exit Code 8" can be caused by several factors. Here are some possible reasons:

    • ❌ Incorrect System Configuration: Sometimes, the cause of the issue is incorrect configuration. In such cases, you can recheck your settings and make the necessary adjustments.
    • ? Malware or Virus Infection: A virus attack can also lead to file corruption, resulting in this error message.
    • ? Outdated Drivers: Incompatibility between drivers and the system is another reason for this error to occur.
    • ? Bad Sectors on the Storage Disk: If there are bad sectors or unreadable portions on the disk, it will lead to the "File system check exit code is 8" error.
    • ? Damaged or Corrupted File Directory: Damage within the file directory on the drive can also trigger this error.

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How to Recover Data from a Storage Drive Using Software

Scared of data loss after encountering the “Repairing filesystem check exit code is 8” error? Well, data loss can indeed happen in certain situations. But don't worry. You can retrieve your lost data with the help of professional data recovery software.

You can easily recover your data using the Mac Data Recovery Wizard tool. This tool helps restore various types of data, such as music files, videos, emails, photos, documents, and more. It also enables data recovery from different Mac-based devices, including SSDs, HDDs, memory cards, fusion drives, and so on.

With the Data Recovery Wizard for Mac tool, you can recover lost data in various scenarios, including deletion, partition loss, formatting, repartitioning, system crash, virus attack, and more.

Ready to give Data Recovery Wizard for Mac a try? Follow these simple steps:

Step 1: Select the location to scan

Run the Mac Data Recovery Wizard and select the hard drive, SSD, SD card, USB flash drive, or TF card from which you've lost files. Click “Search for Lost Files” to start scanning.

Note: Before data recovery, it's better to click “Disk Backup” from the left sidebar and create a backup for your Mac to prevent further data loss. After the backup, the software can recover data from the Mac backup, and your computer can write new data again.

Select the location, and then click “Find Lost Files”. Select the location, and then click “Find Lost Files”

Step 2: Filter Lost Mac Data

The software will automatically scan for lost data on your MacBook/iMac. Once the scan is complete, you can filter out the required data using the “Type” and “Path” buttons.

Filter lost files by type

Step 3: Recover Lost Data or Files

Double-click a file to preview it, and then click the “Recover” button to restore your lost data to another location.

Click on the “Recover” button to retrieve the lost data.

Resolving the file system check exit code 8 issue on an external hard drive

If you encounter this file system check issue on an external hard drive, there are three methods to fix the error. Read on for more information, and feel free to share the tutorial on social media:

1. Run First Aid in Recovery Mode to fix the file system check exit code 8 issue

The "First Aid" feature can help you fix errors related to Mac disk formatting and directory structure in Disk Utility. You can run First Aid on an external hard drive to address the issue of "File System Check exit code is 8." Here are the steps you should follow:

Step 1: Open the Applications folder.

Step 2: Click the “Utilities” folder.

Open the Utilities folder on your Mac

Step 3: Select Disk Utility.

Open the Disk Utility app

Step 4: Select the damaged disk.

Step Five: Choose first aid.

Select First Aid

Step 6. Click Finish.

Step 7. Restart your MacBook Pro or Air. You can also open Disk Utility from Recovery Mode:

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2. Update outdated apps to fix file system check errors

Updating outdated applications is crucial to fixing the "file system check exit code 8" error. To address this issue, follow these steps:

Step 1: Click the Apple menu.

Step 2: Tap the App Store.

Mac App Store

Step 3: Choose “Update.”

Step 4: Check for available updates.

Step 5: Select the updates you want, or click the "Install All" button.

Update macOS Apps

If you're wondering how to update your Mac, check out this tutorial:

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Format the external hard drive to resolve the file system check exit code 8 issue

Erasing or reformatting the external hard drive is a good way to resolve this issue. To do so, follow these steps:

Step 1: Open Disk Utility

Step 2: Choose the external drive you want to use.

Step 3. Tap the “Erase” button.

Use the Disk Utility options to erase the disk

Step 4: Enter a label for the partition and the file system type.

Step 5: Select “Erase.” If you accidentally erased the wrong drive on your Mac, check out this article to fix the problem:

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Resolving a File System Check Exit Code 8 issue on Macintosh HD

If you're encountering a problem with file system check exit on your Mac startup disk, you can fix the error with any of these five methods:

1. Troubleshoot by Restarting Your Mac

The first is to restart your system, which deletes temporary files, caches, and preferences that macOS generates, and allows the system to reset. Hopefully, the error will be resolved simply by restarting. To do this, follow these steps:

Step 1: Click the Apple menu.

Step 2. Choose “Restart” from the drop-down menu to restart your MacBook Air.

Restart MacBook

Step 3: Wait for your system to shut down and restart. Check now to see if the error persists.

2. Fixing the File System Check Exit Code 8 in Safe Mode

In this solution, you need to boot your Mac into Safe Mode on Mac. It's important to understand that the steps differ depending on the model. Let's take a look:

For Macs with Apple chips:

Step 1: Power down the system.

Step 2: Hold down the Power button until you see the startup options.

Startup Options

Step 3: Choose the boot disk.

Step 4: Now, hold down the Shift key.

Step 5: Click Continue in Safe Mode.

For Intel-based Mac computers:

Step one: Power down the system.

Step two, open it.

Step 3. Hold down the Shift key.

Step 4: Release the key when you see the login screen.

Boot into Safe Mode to check your hard drive. This can take a while, but if the error remains after the check is finished, you'll know it's probably not the hard drive. If your Mac won't successfully boot into Safe Mode, try the steps in this article:

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3. Run First Aid in Recovery Mode to Fix Disk Utility Errors

Recovery Mode allows you to access your system even when there's a problem. You can run First Aid from here to fix the error. Here's how:

Step 1. Boot into macOS Recovery Mode.

Step 2: Wait for the “Utilities” window to appear.

Step 3: Choose Disk Utility.

Select Disk Utility. ![Select Disk Utility](/images/zh/screenshot/data-recovery-mac/disk-utility-macos.jpg)

Step 4: Select the disk that contains the error.

Step 5: Click the “First Aid” button.

Select First Aid

Step 6: Click Finish.

Run First Aid

Step 7: Restart your system.

4. Run the FSCK Command to Fix File System Check Exit Code 8 Issues

If First Aid fails to fix the issue, you can run the FSCK command. For that, you'll need to enter Single User Mode. Check the steps to follow:

Step 2. As you hear the startup sound, press the Command and S keys. You'll be dropped into Single User Mode.

Step 3: Type in fsck -fy.

If you see a message about the file system being modified, enter that command again.

Step 5: You should see the message “The volume (name) appears to be OK.”

Step 6 Type reboot

Step 7: Boot up as normal.

5. Reinstall macOS to resolve this error.

One reason for the "File system check exit code 8" message is damage or corruption to system files. In such cases, reinstalling macOS might be helpful. Please follow these steps:

Step 1: Restart your system in macOS Recovery mode.

Step 2: In the Utilities window, choose Reinstall macOS.

Reinstall macOS

Third, follow the instructions on the screen.

After you finish installing macOS, see if the issue is resolved. If you still need help, contact Apple Support.

How to avoid a file system check exit code of 8

Encountering the "File System Check Exit Code 8" error can be frustrating, especially for new Mac users. However, there are various preventive measures you can take to avoid this error from occurring.

First, make sure the system is never without power. To guard against unexpected power outages, the Mac should be shut down properly. If you don't already have antivirus software installed, get it now. This is an important step to protect your system from malicious attacks.

Regularly check for and fix small issues before they escalate into bigger ones. Also, ensure that you update your apps when new versions are released. Remember, data loss can happen anytime. The best solution is to back up critical data.

Bottom line

Some Mac users have reported encountering the "File System Check Exit Code 8" error. While this can be frustrating, there are several reasons why this might occur. It could be due to a virus, a corrupted file system, outdated drivers, and more. Fortunately, there are several solutions you can try.

You can run First Aid or update apps on an external drive. For Macintosh HD, users can restart the system, run First Aid, run the FSCK command, and so on. Also, it must be understood that data loss can happen. In such a case, it's a good idea to opt for a tool like Data Recovery Wizard for Mac!

Try Data Recovery Wizard for Mac now!

"Frequently Asked Questions About 'File System Check Exit Code 8'" 1. **What is fsck?** fsck, or File System Check, is a utility used to detect and fix errors in a file system. It's typically run at boot time or manually in Linux and Unix-like operating systems. 2. **What does exit code 8 mean?** In fsck, exit code 8 signifies severe errors that might not be automatically repairable. This often implies corruption within the file system that requires attention. 3. **Why do I get a File System Check exit code 8?** This could be due to power failures, improper shutdowns, hardware issues, or damage to the file system. Disk errors, inode corruption, or data consistency problems can also cause this error. 4. **How do I fix it?** Try running fsck with more aggressive options like `fsck -f` or `fsck -y`, which might allow fsck to fix more errors automatically. If the issue persists, you may need specialized data recovery tools or services, or reformatting and recovering your data. 5. **Should I fix it right away?** Yes, it's crucial to address this issue promptly as unresolved file system errors can lead to data loss, system instability, or inability to boot. 6. **Can I prevent this?** Regular file system backups, stable power supply, proper shutdowns, and performing routine maintenance tasks (like fsck) can help prevent such issues. 7. **Can I fix file system errors while the system is running?** In most cases, you shouldn't run fsck on the root file system while the system is running. It's best done at boot time or in a separate rescue mode. 8. **Should I contact technical support?** If you're unsure how to resolve the issue or it persists, reaching out to experienced technical support or professional IT services is advisable. They can provide specific guidance and solutions.

For more information about the error "File system check exit code is 8," refer to the questions and answers listed below:

How do I fix a damaged hard drive on a Mac?

To fix a damaged hard drive on a Mac, open the Disk Utility app and select the volume. Click the "First Aid" button, then click "Run" and follow the on-screen instructions.

How do I fix the file system check exit code 8 issue?

To repair the file system, check that the exit code was 8, then restart your system. Run First Aid from Recovery mode. Erase the disk and reinstall macOS from the Utilities window.

Why am I encountering a file system check exit code 8 issue?

An error with an exit code of 8 during a file system check could be caused by various issues. This might be due to a malware attack or outdated drivers. Other reasons can include incorrect system settings, bad sectors on the storage space, and more.

How can I recover lost files after a file system check exits with code 8?

If the file system check exit code 8 led to lost files and you have backups, you can restore them through your backup. But if you don't have a backup, you'll need to opt for professional data recovery software. In this case, you can choose tools like Data Recovery Wizard for Mac. This software can quickly recover lost files after fixing the file system check exit code 8 issue.