Hello, Hope you will forgive me for asking some very simple question about e2fsprogs. I am very new to the kernel as well as file system programming. My task is to collect superblock, inode, bitmap ( or free list) information from ext2/ext3 filesysteam. After searching the google, I came to know about e2fsprogs, which I was able to install and use at least "dumpe2fs" utility. This utility do not provide timestamp of each allocated inode and I am thinking of modifying source code of e2fsprogs. My two questions are: 1. Is it correct to use "dumpe2fs" program and modify for timestamp ? 2. I could not understand the main purpose of e2fsprogs. Am I correct to assume that this program extract information from the existing ext2/ext3 filesystem. Why there are ext2_inode datastructure defined in these programs ? Why couldn't these programs read existing datastructures of inode ? 3. Are these user level or kernel level programs ? 4. I want to have my own policies of allocatiing datablocks in some cylinder group instead of using ext2 default policy ? What should I do for that ? I know, these must be silly questions, but I will learn from your response. Mir.