| .\" -*- nroff -*- |
| .\" Copyright 1993, 1994, 1995 by Theodore Ts'o. All Rights Reserved. |
| .\" This file may be copied under the terms of the GNU Public License. |
| .\" |
| .TH DUMPE2FS 8 "@E2FSPROGS_MONTH@ @E2FSPROGS_YEAR@" "E2fsprogs version @E2FSPROGS_VERSION@" |
| .SH NAME |
| dumpe2fs \- dump ext2/ext3 filesystem information |
| .SH SYNOPSIS |
| .B dumpe2fs |
| [ |
| .B \-bfhixV |
| ] |
| [ |
| .B \-o superblock=\fIsuperblock |
| ] |
| [ |
| .B \-o blocksize=\fIblocksize |
| ] |
| .I device |
| .SH DESCRIPTION |
| .B dumpe2fs |
| prints the super block and blocks group information for the filesystem |
| present on |
| .I device. |
| .PP |
| .B dumpe2fs |
| is similar to Berkeley's |
| .B dumpfs |
| program for the BSD Fast File System. |
| .SH OPTIONS |
| .TP |
| .B \-b |
| print the blocks which are reserved as bad in the filesystem. |
| .TP |
| .B \-o superblock=\fIsuperblock |
| use the block |
| .I 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. |
| .TP |
| .B \-o blocksize=\fIblocksize |
| use blocks of |
| .I 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. |
| .TP |
| .B \-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). |
| .TP |
| .B \-h |
| only display the superblock information and not any of the block |
| group descriptor detail information. |
| .TP |
| .B \-i |
| display the filesystem data from an image file created by |
| .BR e2image , |
| using |
| .I device |
| as the pathname to the image file. |
| .TP |
| .B \-x |
| print the detailed group information block numbers in hexadecimal format |
| .TP |
| .B \-V |
| print the version number of |
| .B dumpe2fs |
| and exit. |
| .SH BUGS |
| You need to know the physical filesystem structure to understand the |
| output. |
| .SH AUTHOR |
| .B dumpe2fs |
| was written by Remy Card <Remy.Card@linux.org>. It is currently being |
| maintained by Theodore Ts'o <tytso@alum.mit.edu>. |
| .SH AVAILABILITY |
| .B dumpe2fs |
| is part of the e2fsprogs package and is available from |
| http://e2fsprogs.sourceforge.net. |
| .SH SEE ALSO |
| .BR e2fsck (8), |
| .BR mke2fs (8), |
| .BR tune2fs (8) |
| |
