In Macbook or Mac OS X, DMG (which stands for Disk Mounted Graphics) are considered as real disks for storing data. DMG files are known to store information in mounted form for easily accessing data. This file format allows you to compress the files and also enables the users to secure password. And as a result it serves both security and file distribution functions. It is easy to create DMG files by using Disk Utility in Macbook or Mac OS X 10.3 and its later versions. Mounting is a process which makes the Macbook file system easily usable. On mounting the DMG data or drive, one can access all its contents without any difficulty. Thus it can be said this process which makes accessing the DMG files much easier. Unfortunately, in some situations it is not possible to mount those files and thus making it difficult to access data from it.
Sometimes, it occurs that when a user tries to mount the DMG file on hard drive with the help of finder and access data from the file, he might get the following error message:
"No mountable File System" error
No mountable file system is a very common error related with DMG files. On getting this error, file gets inaccessible thereby making all the data inaccessible. For making the data accessible, you will have to find the cause of this error message.This problem occurs because the operating system fails to get the file system in appropriate format in order to mount the images. It occurs due to various reasons like incorrect file system format, corrupted file system, virus attack, application malfunctioning etc. It may also occur in situations if the file system is missing or damaged. As a result, DMG files get unusable and might result in severe data loss consequences.
In such situations you may take the help of Disk Utility which is used for checking the integrity of file. It verifies the file system for all types of errors on getting the error it resolves the error. But Disk Utility is not always capable of resolving this problem, which makes it necessary for you to use third-party Mac data recovery tools. These tools are built with powerful scanning techniques for performing deep scanning. It efficiently extracts all inaccessible, missing and lost data from it and saves the integrity of your crucial data.
Processor: Intel Power PC (G4 or later)
Operating System: OS X 10.6 Snow Leopard, 10.5 Leopard, 10.4 Tiger, and 10.3.9 Panther
Memory: 256 MB
Hard Disk: 40Mb