When I was working at my first ext2 driver implementation, I found myself short of documentation on the subject. It wasn't so much the information not being available as of it not being available all in one place.

This project tries to fix this, by bringing in one single place all the useful information in one easy to understand package. I try to not tie the documentation to any particular operating system, so that it may be useful to the widest audience.

Change Log

Added a note to .i_blocks and .i_dtime

Updated the values of EXT2_S_IFLNK and EXT2_S_IFSOCK as noted by Jeremy Stanley of AccessData Inc

Added a note about the reserved inode entries

Fixed the 0 and 1 definitions for the block and inode bitmaps.

Cleared up the confusion about the location of the group descriptors in section 'Group Descriptor'

Added the description of EXT2_INDEX_FL (Hash Indexed Directory)

Fixed many table layouts

Added the Indexed Directory Format

Added .i_flags descriptions

Added a collaborator section and a credits appendix

Added some notes for compat/incompat features

Completed the inode chapter

Added extended attributes