fatutils

Two tools for reading FAT filesystem images:

• fatinfo.pl - a rather old tool, written in perl
• fatdump.py - a newer tool, written in python.

Both have a similar functionality.

I use these so i don't have to actually mount a filesystem image in order to see what is inside. Note: you can also do this using (7zip)[https://www.7-zip.org/].

fatinfo

Usage: perl fatinfo.pl [options]  fatfilesystemimage
   -f DIRECTORY  : save files to DIRECTORY
   -d            : save deleted files
   -c            : save unused clusters
   -u            : save unlinked cluster chains
   -l            : save data from unused cluster space
   -o OFFSET     : offset to FAT bootsector
   -v            : be verbose
   -r            : repair incorrect filesize (only rootdir entries)

for example to print info on the xda-ii extended rom image:

    perl fatinfo.pl -o 0x70040 ms_.nbf

fatdump

usage: fatdump.py [-h] [--verbose] [--offset OFFSET] [--recurse] [--skiplinks] [--listfiles] [--badblocks BADBLOCKS] [--blocksize BLOCKSIZE] [--cat CAT] [--debug] FILES [FILES ...]

fatdump

positional arguments:
  FILES                 Files or URLs

optional arguments:
  -h, --help            show this help message and exit
  --verbose, -v
  --offset OFFSET, -o OFFSET
  --recurse, -r         recurse into directories, when finding disk images
  --skiplinks, -L       ignore symlinks
  --listfiles, -l       list files
  --badblocks BADBLOCKS
                        bad sector nrs
  --blocksize BLOCKSIZE
                        the blocksize
  --cat CAT, -c CAT     cat a file to stdout
  --debug

AUTHOR

Willem Hengeveld itsme@xs4all.nl