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Error - The Disk Is Unreadable and Mac Recovery Solution

by tompatrick

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Error - The Disk Is Unreadable and Mac Data Recovery Solution

Sometimes, after an sudden shut-down of your Mac system, your Mac OS X based hard drive becomes unreadable leaving all your valuable data in it completely inaccessible. The reason behind such a problem can be the corruption of the file system, damage to the logical structure of the hard drive, operating system malfunction, boot sector virus infection, application contradiction etc. However, with the help of advanced Mac file recovery solution, all your lost or inaccessible data can be recovered back.

For instance, while trying to access any Mac OS X based volume in your Mac hard drive, you may encounter an error message after which the hard drive stops responding. The same error occurs every time you try to access the drive/volume. The error message can be read as below:

"The disk is unreadable: Do you want to initialize it now?"

In Mac Os X, there is an in-built disk repair utility called 'Disk Utility'. After the above error, if you try to analyze the disk/volume for any possible error and repair it using 'Disk Utility', then, you may further receive another long error message as follows:

"Verify and Repair volume "disk1d4"
Checking Journaled HFS Plus volume.
Invalid node structure
Invalid B-tree node size
Invalid node structure
Invalid B-tree node size
Volume check failed.
Error: File system verify or repair failed."


The occurrence of the above error can be due to a possible iNode corruption or damage to the file system.


Though you have failed to resolve the issue with 'Disk Utility', still you can try with the command-line utility, 'fsck', which scans the Mac volumes for any file system errors and fixes the same.

However, if you also fail with 'fsck', you have to make a fresh installation of the operating system using the 'Erase and Install' option. In this process, all you data from the Mac hard drive will get erased and you need to restore them from a valid backup, failing to which, you are left with the only reliable option, any Mac recovery software to recover back your formatted data.

Stellar Phoenix Macintosh Data Recovery is one of mostly used risk-free Mac recovery software of the current time. The software is capable of recovering all your lost, deleted, formatted or inaccessible data from HFS, HFS Wrapper, HFS plus and FAT file system based volumes. Moreover, this reliable Mac recovery utility is compatible with Mac OS X 10.3.9, 20.5, 10.4, 10.6 and with rich graphical user interface, can be used even by the non-technical users.

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