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Fix No Mountable File System Error in Mac OS X to Prevent Data Loss

Like other operating systems, occurrences of error messages are quite common in Mac OS. While working users receive different types of error messages due to which it becomes quite difficult to access the files and handle your task easily. It is really very irritating when you encounter with no mountable file system error in Mac OS X. Usually, users create backup of the file system by creating DMG files. The DMG files are created with the help of Disk Utility. It is actually an image of the entire contents of the hard drive, CD, DVD, floppy disk etc which acts as backup of file system stored in the drive. This file format can be easily compressed and password protected which offers security to your data and can be easily used for distribution purpose.

Users can easily mount the DMG files in order to access the stored contents. But sometimes there comes a scenario when you attempt to open the DMG files it remain unopened and you come across below error message:

No Mountable File System

As a result of above error message Mac OS unable to mount the DMG image and you are unable to access the files. The file gets damaged due to some unavoidable reasons like improper shut down of system, power failure, damaged file headers and virus infections etc due to which you receive the above error message. When DMG file gets corrupted Mac OS unable to get the proper format of the file system so that it could mount the file. This is the reason why you are unable to access the disk image. It is essential to resolve this error immediately because at times it also leads to data loss situations.

In order to fix no mountable file system error in Mac OS you need to run Disk Utility which will check the integrity of file system and repair damaged files. Even if you are getting similar error message while opening Dmg files then it is required to use any third-party Mac Data Recovery Software with the help of which you can easily retrieve the damaged files.