How to Fix a Corrupted Hard Drive Using CMD

If you suspect that your hard drive has become corrupted, it's essential to verify this suspicion and take immediate action to prevent further damage. In this article, we will guide you through the steps to fix a corrupted hard drive using the Command Line Interface (CLI) on your Mac.

Step 1: Verify Your Hard Drive Corruption

The first thing you should do is to scan your hard disk for errors using the built-in tool, `diskutil`. To start, open the Terminal app located in the Utilities folder. Once opened, paste in the following command: `diskutil list`. This will display a list of all your hard drives and their individual partitions.

Look at the size of each partition and use it to find the one you want to verify. Take note of its identifier as you will need it in the next step.

Step 3: Use DiskUtil to Repair the Hard Disk

Once you have identified the corrupted hard drive, you can use `diskutil` to repair it. The good news is that all the tools you need are already present on your Mac. To start the repair process, launch Terminal and paste in the following command: `sudo fsck_hfs /dev/diskXsY`, replacing `X` with the identifier of your hard drive and `Y` with the partition number.

This will scan your hard disk for errors and attempt to fix any issues it finds. If you are prompted to enter your administrator password, do so to continue the repair process.

Step 4: Fix File System Consistency with FSCK

If the previous step fails to resolve the issue, you can try using `fsck` to fix file system consistency. This command will scan your hard disk for errors and attempt to fix any issues it finds.

To use `fsck`, open Terminal and paste in the following command: `sudo fsck -fy /dev/diskXsY`, replacing `X` with the identifier of your hard drive and `Y` with the partition number.

Step 5: Recovery Your Files with Disk Drill

If none of the above steps resolve the issue, you may need to recover your files using a third-party tool such as Disk Drill. This tool can help you recover lost data from your corrupted hard drive.

In conclusion, fixing a corrupted hard drive on your Mac is a relatively straightforward process that requires some basic knowledge of the Command Line Interface (CLI). By following these steps, you should be able to verify and repair your hard drive corruption using `diskutil`, `fsck`, and other built-in tools. Always remember to back up your data regularly to prevent data loss in case of any unexpected issues with your hard drive.

How to fix a corrupted hard drive cmd