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#Os x disk repair software#

#Os x disk repair software#

Use the fsck command again until it says, “The volume appears to be OK.”Īlso Read: List of Top 5 Mac Hard Disk Drive Repair Software 2.

If you receive the message “File system was modified”, 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 –h 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.įile system space, thus crippling drive access.įile-system formatted storage drive are as follows: The storage drive’s file system, which may not get fixed with Disk Utility’sįile 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 APFSĬontainer. The drive and its stored data inaccessible on Mac. This logical damage of the external hard drive makes Why Mac External Hard Drive TurnsĬorrupts the partition table, EFI partition, or APFS/HFS file system of the MacĮxternal 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. Don’t worry, you can use alternative methods to repair your Mac external hard drive in case Disk Utility doesn’t work. But sometimes, Disk Utility’s First Aid fails to repair your external hard drive and the drive’s data remains inaccessible. Recover Inaccessible Data Using Mac Data Recovery Softwareĭisk 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 Driveģ. Use FSCK Command in Terminal to Repair External Hard DriveĢ. Summary: In this blog, we’ll share a variety of alternative methods to repair your Mac external hard drive in case Disk Utility fails to fix the drive.ĭownload the free-to-try Mac data recovery tool to recover data from an external hard drive.