System administration command. Provide direct access to data structure of an ext2 or ext3 filesystem in order to debug problems with the device. device is the special file corresponding to the device containing the filesystem (e.g., /dev/hda3). debugfs may be used on a mounted filesystem device.
Use the specified blocksize for the filesystem.
Catastrophic mode. Open the filesystem in read-only mode; do not read the inode and group bitmaps initially.
Read commands from file. Exit when done executing commands.
Specify filesystem device is an ext2 image file created by e2image.
Read the superblock from the specified block.
Open the filesystem in read-write mode.
Execute the given request (see list below), then exit.
Print version number, then exit.
Given the logicalblock of inode file, print the corresponding physical block.
Dump the contents of an inode to standard output.
Change the current working directory to directory.
Change the root directory to be the specified inode.
Close the currently open filesystem.
Clear the contents of the inode corresponding to file.
Dump the contents of inode file to out_file. Change ownership and permissions of out_file to match file if -p is specified.
Set filesystem feature listed on the command line, then print ...