DUMPE2FS

dumpe2fs − dump filesystem information

dumpe2fs [ −bfhV ] [ −ob superblock ] [ −oB blocksize ] device

dumpe2fs prints the super block and blocks group information for the filesystem present on device.

dumpe2fs is similar to Berkeley’s dumpfs program for the BSD Fast File System.

−b

print the blocks which are reserved as bad in the filesystem.

−ob superblock

use the block superblock when examining the filesystem. This option is not usually needed except by a filesystem wizard who is examining the remains of a very badly corupted filesystem.

−oB blocksize

use blocks of blocksize bytes when examining the filesystem. This option is not usually needed except by a filesystem wizard who is examining the remains of a very badly corupted filesystem.

−f

force dumpe2fs to display a filesystem even though it may have some filesystem feature flags which dumpe2fs may not understand (and which can cause some of dumpe2fs’s display to be suspect).

−h

only display the superblock information and not any of the block group descriptor detail information.

−V

print the version number of dumpe2fs and exit.

You need to know the physical filesystem structure to understand the output.

dumpe2fs was written by Remy Card <card@masi.ibp.fr>, the developer and maintainer of the ext2 fs.

dumpe2fs is part of the e2fsprogs package and is available for anonymous ftp from tsx-11.mit.edu in /pub/linux/packages/ext2fs.

e2fsck(8), mke2fs(8), tune2fs(8)