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DUMPE2FS(8)?? ??? ??? ??? ??? ??? ??? ??? DUMPE2FS(8)



NAME
?????? dumpe2fs - dump ext2/ext3/ext4 filesystem information

SYNOPSIS
?????? dumpe2fs [ -bfhixV ] [ -o superblock=superblock ] [ -o blocksize=block-
?????? size ] 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.

?????? -o superblock=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.

?????? -o blocksize=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 1.41.12?? ??? May 2010?? ??? ??? ??? DUMPE2FS(8)

轉載于:https://my.oschina.net/vimer/blog/134395

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