A kernel panic in Mac OS X operating system occurs under three circumstances. First, when the kernel of Mac OS X operating system receives the instructions in an improper format. Second, when Mac OS X is unable to recover from file system corruption issue. Third, when the user installs a damaged or incompatible software on his/her Mac OS X machine. To overcome kernel panic caused due to file system damage, a Mac user needs to run ‘Disk Utility’. While almost all the file system problems are resolved by using the above utility, there are still some that are beyond the repairing capabilities of this utility. For such situations, the user needs to opt for ‘FSCK’ command to repair corrupt file system. But, if this command also fails, then the user needs to search for a third-party Mac Data Recovery application, in case no backup is available.

Consider a practical case, wherein you encounter a kernel panic due to file system damage. To overcome the situation, when you run the ‘Disk Utility’ command, you encounter the underneath error message:

“Volume Header needs minor repair

The volume Macintosh hd needs to be repaired.

Error: The underlying task reported failure on exit

Disk Utility stopped verifying “Macintosh hd” because the following error was encountered:

The underlying task reported failure on exit

1 HFS volume checked

Volume needs repair”

After the above error message appears, the data saved in your Mac hard drive becomes inaccessible.

Cause:

The above error message pops up when the ‘Disk Utility’ fails to repair the corrupted file system.

Resolution:

To resolve the above error message and file system damage, you need to run a repair utility named ‘FSCK’. However, if the above utility fails to repair the corrupted file system and your data remains inaccessible, then you will need to use a commercial Mac Data Recovery application to recover data. Such Mac File Recovery tools are built with interactive user-interface and perform complete recovery of lost data post any logical damage, including file system damage.

Stellar Phoenix Macintosh Data Recovery overcomes all logical damage situations and recoups almost all inaccessible files and folders from HFS, HFS+, HFSX, HFS Wrapper, and FAT file systems volumes. Compatible with Mac OS X 10.3.9 and above operating systems, the File recovery Mac tool allows even a novice user to perform recovery.