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Practices will lessen the chances of file system corruption:Р”В®xternal disk when your Mac is low in battery. Restore the recovered data to the newly formatted external hard drive. Utility to erase the external hard drive, and recreate a new file system.

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Or partition table is lost, deleted, or damaged.Р”Р‡ree download the *trial version of Stellar Data Recovery Professional for Mac. Recover the inaccessible data from the drive whose file system, EFI partition, Succeed to repair the external hard drive, use a Mac data recovery software to

On the prompt, type fsck_hfs РІР‚вЂњy /dev/disk4s1 and hit Return.Р”Р‡sck command.

Promptly press and hold Command + S keys. Mode to repair the file system corruption issue on your Mac external hard drive.Р”Вrive by using single-user mode are as follows: Use FSCK Command in Single-User Mode to Fix External Drive

Use the fsck command again until it says, РІР‚СљThe volume appears to be OK.РІР‚СњР”Р„lso Read: List of Top 5 Mac Hard Disk Drive Repair Software 2.

If you receive the message РІР‚СљFile system was modifiedРІР‚Сњ, re-run the above fsck command.

The parameter -y repairs any damage that is found. If the external storage drive is in the apfs format, use fsck_apfs instead of fsck_hfs. The fsck_hfs verifies and repairs hfs containers and volumes.

Type fsck_hfs -y /dev/disk4s1 and hit Return.

This command unmounts the external drive.

Type unmount /dev/disk4s1 and hit Return.

Note down the file system identifier of the external hard drive, say /dev/disk4s1.

In the Terminal window, type df РІР‚вЂњh and hit Return.

Go to Finder > Applications > Utilities > Terminal.

System consistency check) command in the macOS Terminal. The file system corruption issue on your Mac external hard drive, run the fsck (file

Use FSCK Command in Terminal to Repair External Hard Drive To repair Mac storage drive without Disk Utility. The next sections describe numerous methods Not un-mount due to running programs that are accessing the drive, forced Storage drive without proper un-mounting may result in an incomplete write Results in non-syncing of information to the file system, which results in its System of the drive turns bad, then the storage drive fails.Р”Р‡ile system space, thus crippling drive access.Р”Р‡ile-system formatted storage drive are as follows: The storage driveРІР‚в„ўs file system, which may not get fixed with Disk UtilityРІР‚в„ўsР”Р‡ile system thereby causing corruption on the disk. Storage and retrieval of data to and from the storage drive. Have multiple volumes with their file systems. Space manager area, and storage for objects and file data. The APFS container comprises Container superblock, Checkpoint area, Reserved space for GUID Partition Table, EFI System Partition, and APFSР”В¬ontainer. The drive and its stored data inaccessible on Mac. This logical damage of the external hard drive makes Why Mac External Hard Drive TurnsР”В¬orrupts the partition table, EFI partition, or APFS/HFS file system of the MacР”В®xternal storage drive. The Mac file system and its importance, and learn the reasons that lead to file Recovery methods, know why a Mac external hard drive turns inaccessible, appreciate Also, you can recover data from a corrupt external drive on Mac. DonРІР‚в„ўt worry, you can use alternative methods to repair your Mac external hard drive in case Disk Utility doesnРІР‚в„ўt work. But sometimes, Disk UtilityРІР‚в„ўs First Aid fails to repair your external hard drive and the driveРІР‚в„ўs data remains inaccessible. Recover Inaccessible Data Using Mac Data Recovery SoftwareР”Вisk Utility is a useful storage drive management software that allows you to perform the external hard drive repair task with ease by using First Aid. Use FSCK Command in Single-User Mode to Fix External DriveР”Р€. Use FSCK Command in Terminal to Repair External Hard DriveР”Сћ. Summary: In this blog, weРІР‚в„ўll share a variety of alternative methods to repair your Mac external hard drive in case Disk Utility fails to fix the drive.Р”Вownload the free-to-try Mac data recovery tool to recover data from an external hard drive.