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Linux Data Loss Caused by Block Group Descriptor

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linux-howto

http://www.ubuntux.org – Ext3 is the most commonly used and stable file system of Linux operating system. This journaled Linux file system divides hard drive space into blocks. These blocks are managed in block groups. Every block group is defined by an individual data structure, which stores critical information, known as Group Block Descriptor. Every block group is assigned data structure to access it. The data structure is also useful because it contains inode table, inode bitmap, and location information of block bitmap. The group descriptors are arranged sequentially and together create group descripto (Distributions)