dumpe2fs



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 corrupted 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 corrupted 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 <Remy.Card@linux.org>.  It is cur-
       rently being maintained by Theodore Ts’o <tytso@alum.mit.edu>.


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 1.38             June 2005                       DUMPE2FS(8)

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