debugfs An interactive ext2/ext3/ext4 filesystem debugger. Open the filesystem in read only mode: debugfs {{/dev/sdXN}} Open the filesystem in read write mode: debugfs -w {{/dev/sdXN}} Read commands from a specified file, execute them and then exit: debugfs -f {{path/to/cmd_file}} {{/dev/sdXN}} View the filesystem stats in debugfs console: stats Close the filesystem: close -a List all available commands: lr