All the files in a Linux system are arranged in the form of a tree, all rooted at '/'. To attach the file system of some device to the file tree, you need to use mount command. But, sometimes you find that the command fails to do the specified task. This might occur if the file system is corrupted and thereby, you cannot access the stored data. In order to solve such problems, you might need to reinstall the system and restore from backup. However, if you face any backup related concerns, use Linux Recovery software. For example, when you try to mount a Linux partition, it might return you an error message stating that you need to specify a file system type: "mount: you must specify the filesystem type" Cause There can be variety of reasons causing the above error to occur. Some of them are listed below: 1. Linux maintains a file called fstab that lists all the available disks and partitions and their initialization information. The file is used by mount command to determine the required options. The above error might occur if you have recently made some changes in fstab file that are preventing the partition to mount. 2. You haven't created any file system on the partition 3. File system is corrupted due to superblock damage like reasons. Superblock is the metadata structure that maintains all critical information about the file system like its type, size etc. Solution To solve the error stated above, you need to follow these steps: 1. Try to mount the file system using -t switch in the mount command. For example: mount -t type device dir Using this command allows you to attach the file system of device with type type at dir directory 2. Make sure that you have correctly specified the drive entries in fstab file 3. You can create the file system by executing the following command: mkfs.ext3 /dev/hdXX 4. Make use of fsck command to repair file system inconsistencies. 5. If data still remains inaccessible due to file system corruption issues, run Linux Data Recovery tools for successfully extracting the lost information. Linux Recovery software employ powerful scanning algorithms to extract lost data while providing you self-descriptive interface. Linux Data Recovery is a fully-featured recovery product designed for Ext2, Ext3 and ReiserFS file system drives. The application uses effective scanning algorithms and is competent to recover from all Linux distributions including Fedora, Ubuntu, SlackWare, Turbo Linux and others. It is a read-only Linux Data Recovery tool that serves as a comprehensive tool to recover all the lost data.
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