Group Descriptors corruption in Linux – cause and solution

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http://i486.net – Linux ext2 and ext3 file system area is classified into blocks, which are groups organized by category. It is of particular data structure of each group that defines and contains valuable information, call the group descriptor blocks. Data structure is assigned to each block groups to access it and even inode bitmap, inode table and block bitmap of location information. The task of the descriptions in the group takes places in a row and together form the group descriptor table. If there is a distortion of the descriptors for the group, the entire file system is as corrupt. Corrupt (General)