GNU/Linux man pages
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GNU/Linux |
Debian 6.0.5(Squeeze) |
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dumpe2fs(8) |
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dumpe2fs − dump ext2/ext3/ext4 filesystem information
dumpe2fs [ −bfhixV ] [ −o superblock=superblock ] [ −o blocksize=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.
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−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 filesystem.
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−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). | ||
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−h |
only display the superblock information and not any of the block group descriptor detail information. | ||
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−i |
display the filesystem data from an image file created by e2image, using device as the pathname to the image file. | ||
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−x |
print the detailed group information block numbers in hexadecimal format | ||
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−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>. It is currently being maintained by Theodore Ts’o <tytso@alum.mit.edu>.
dumpe2fs is part of the e2fsprogs package and is available from http://e2fsprogs.sourceforge.net.
e2fsck(8), mke2fs(8), tune2fs(8)
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dumpe2fs(8) | |