Developer's Daily | Unix by Example |
main | java | perl | unix | dev directory | web log |
dumpe2fs ? dump filesystem information |
dumpe2fs [ ?bfhV ] [ ?ob superblock ] [ ?oB 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. |
?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 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. |
||
?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 <card@masi.ibp.fr>, the developer and maintainer of the ext2 fs. |
dumpe2fs is part of the e2fsprogs package and is available for anonymous ftp from tsx-11.mit.edu in /pub/linux/packages/ext2fs. |
e2fsck(8), mke2fs(8), tune2fs(8) |