HFS is the most important file system of Mac and its corruption makes Mac OS X hard drive volume un-mountable hence it cannot be accessed using normal methods. The file system corruption might be indicated by various symptoms, which include an error message that pops up when you try to mount the disk volume.
The error occurs every time you try to mount the disk volume. In order to sort out this problem with your Mac machine, you need to find out the root of this issue and then fix it using HFS recovery solutions.
Reason
As stated above, the problem occurs due to corruption or other internal problems with Mac OS X file system. File system may face inconsistencies due to a wide range of issues
Solution
The error occurs every time you try to mount the disk volume. In order to sort out this problem with your Mac machine, you need to find out the root of this issue and then fix it using HFS recovery solutions.
Reason
As stated above, the problem occurs due to corruption or other internal problems with Mac OS X file system. File system may face inconsistencies due to a wide range of issues
Solution
In order to recover Mac data in such cases, try out any of the below methods-
Try repairing the affected Mac OS X hard drive volume using Disk Utility. It is an inbuilt tool that helps you fix minor disk problems.
Try repairing the affected Mac OS X hard drive volume using Disk Utility. It is an inbuilt tool that helps you fix minor disk problems.
Run FSCK command on Terminal in single user mode. It is the command-based version of Disk Utility.
Format the hard drive and reinstall OS. You must use this option as a last resort only as it removes your precious data from the hard drive and cause further data loss.
Recover lost data using Mac file recovery software. The applications are particularly designed to extract lost data in all data loss situations.
