Mac OS X drives are subject to different types of directory corruption. Data loss due to directory corruption can be prevented by repairing the disk using Apple's Disk Utility. If you have overlapped files or extents, you may lose some of your precious data while performing a disk repair. These problems are usually triggered by various unforeseen or unexpected situations, such as power outages, hardware failures, bad programming, improper shutdowns, and the like. You may notice signs of corruption when a few of the files stored on your hard drive fail to open or the system becomes unresponsive. To resolve directory corruption and other startup issues, you can perform repair through Apple's Disk Utility.
For resolving all possible file system issues, you can run Disk Utility using an Installation disc as follows:
In case you get the message 'The underlying task reported failure' and see error '-9972' in the Disk Utility log, Disk Utility failed to repair the selected volume. In such situation, you can try the following resolutions:
For resolving all possible file system issues, you can run Disk Utility using an Installation disc as follows:
- Boot your Mac through Mac OS X Install disc.
- Once the boot process is completed, select 'Disk Utility' on the 'Installer' menu.
- Select the 'First Aid' tab. You will see a list of hard disk volumes and partitions in the left pane.
- Choose the Mac OS X volume and click 'Repair'.
- Disk Utility will verify the volume for error and repair them.
In case you get the message 'The underlying task reported failure' and see error '-9972' in the Disk Utility log, Disk Utility failed to repair the selected volume. In such situation, you can try the following resolutions:
- Try booting from a different volume prior to verifying and repairing.
- Run 'FSCK' command in single user mode to repair the volume.
- Back up all your data to a different disk and carry out an 'Erase and Install' installation of Mac OS X on the damaged volume.
This is done to erase the selected volume completely and install a new copy of the operating system.
If you are confronted with more problems related to disk corruption, you should take help of professional Mac file recovery software to recover all lost or inaccessible data. These software comprehensively scan your hard drive to recover every piece of lost, deleted, or inaccessible information. With the help of these tools, you can preview files, photos, images, etc. and save the recovered items at any desired location in the system. They support recovery from both Intel based Mac and Power PCs. Moreover, these tools are compatible with the latest Mac OS X 10.7 Lion and all lower versions.
If you are confronted with more problems related to disk corruption, you should take help of professional Mac file recovery software to recover all lost or inaccessible data. These software comprehensively scan your hard drive to recover every piece of lost, deleted, or inaccessible information. With the help of these tools, you can preview files, photos, images, etc. and save the recovered items at any desired location in the system. They support recovery from both Intel based Mac and Power PCs. Moreover, these tools are compatible with the latest Mac OS X 10.7 Lion and all lower versions.
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