You may be regular user of Mac system and it may be you save your valuable data on the Mac hard drive. But Do you anxious aboutthe safety of your valuable data? If you are agree with my words then you should create an image of the hard drive for the regular backup purposes. As you know that backup is the process in which your data is saved and it prevents from data loss situations. In Mac OS X you ca easily create the disk image of the hard disk which works as a safeguard for your valuable data against all types of data loss situations.
Disk image is nothing but a file which contains files, directories, and even structure of the hard drive. In this file the entire copy of your files are saved sector by sector. So it is the easiest way to create backup of your critical data which are stored on the Mac hard drive. In the case of MacBook hard drive the situation is same. There are various file formats that you can use to create the disk image..DMG file is one of them which enable you to have file compression and password protection to serve both security and file distribution functions.
This disk image of MacBook files may be important for you. If you face any data loss situation like accidental deletion or any other else the disk image helps you to fix hard drive related errors. It works even in the case of damaged MacBook hard drive and helps you to repair Mac OS X. But sometimes disk image cannot detect and prompts and error messages:-
"Disk Utility stopped repairing permissions on '(volume name)' because the following error was encountered: No valid packages"
OR
"Verify volume failed with error could not unmount disk"
In this condition the disk image not able to repair the hard disk and you are not allowed to access data stored on that.In such a case you should use a Data Recovery tool specially for Mac system.
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