An utility to undelete files from an ext3 or ext4 partition
Why use extundelete?
If you have deleted files from an ext4 file system, the choice is easy: extundelete is the first and only program able to restore both the contents and the file name of a deleted file. If the partition you have deleted files from is an ext3 file system, extundelete still has several advantages over ext3grep. extundelete is able to restore a file immediately after parsing the journal file. ext3grep parses the entire hard drive before it begins to restore files from the hard disk.
The ext3grep method is efficient for restoring many files from a small partition. extundelete is designed to be faster if you need to restore files from a large partition. Also, because extundelete uses the ext2fs library, many features of the ext3 or ext4 filesystems will be automatically supported by extundelete if it is compiled and run with a version of the ext2fs library that supports those features.