DUMPE2FS linux command manual

DUMPE2FS(8)                                                    DUMPE2FS(8)



NAME
       dumpe2fs - dump ext2/ext3 filesystem information

SYNOPSIS
       dumpe2fs [ -bfhixV ] [ -ob superblock ] [ -oB blocksize ] device

DESCRIPTION
       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.

OPTIONS
       -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 filesys-
              tem.

       -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.

       -i     display the filesystem data  from  an  image  file  created  by
              e2image, using device as the pathname to the image file.

       -x     print the detailed group information block numbers in hexadeci-
              mal format

       -V     print the version number of dumpe2fs and exit.

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

AUTHOR
       dumpe2fs  was  written by Remy Card .  It is cur-
       rently being maintained by Theodore Ts'o .

AVAILABILITY
       dumpe2fs is part of  the  e2fsprogs  package  and  is  available  from
       http://e2fsprogs.sourceforge.net.

SEE ALSO
       e2fsck(8), mke2fs(8), tune2fs(8)




E2fsprogs version 1.35          February 2004                     DUMPE2FS(8)