Linux Community Magazine

UnionFS is a Linux file system service that allows users to have the union mount for other Linux file systems. The union mount is the procedure of mounting several Linux file systems simultaneously. All these mounted file systems would then work as a solitary file system. The function of UnionFS is to enable files and directories of different Linux file systems to work as a single logical file system. These directories and files are called branches. When you merge the branches, a virtual file system is created. In virtual file system, the contents of directories that have same file path within branches are seen together. When the branches are mounted, priority of branches is specified over one another. These mounted braches could be either read-write or read-only file systems. It sets the status of file system as readable or writeable. Using UnionFS is very useful. It allows users to modify any file on the system. It could also be used for creating a single common outline for several file systems or for security purpose. In this way, you can see that using UnionFS is extremely helpful for Linux users to complete several operations easily but sometimes it could create severe situations. You may face Linux data loss in following situations:If you modify any UnionFS branch directly, when it is in mounted state, it could result into serious data loss.In UnionFS merged branches, after switch-root or pivot-root, if you set '/' to new point in existing file system hierarchy, you may face file system corruption and thus data loss. In both of these situations, you need to opt for Data Recovery linux to get your data back. It is potential through powerful and advanced Linux Recovery software. These software are very easy to use and thus allow you to have quick and straightforward Data Recovery Linux. Stellar Phoenix Linux Data Recovery is a result oriented and fully automated Linux Recovery software that s capable of handling each and every logical da ta loss situation. It supports Linux Data Recovery from Ext2, Ext3 and ReiserFS file systems. Phoenix Linux Recovery is compatible with most of the Linux distributions.