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


       dumpe2fs prints the super block and blocks group  informa­
       tion 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

       -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.

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

       -x     print  the detailed group information block numbers
              in hexadecimal format

       -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 <Remy.Card@linux.org>.





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