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diff --git a/misc/dumpe2fs.8.in b/misc/dumpe2fs.8.in new file mode 100644 index 0000000..dd27804 --- /dev/null +++ b/misc/dumpe2fs.8.in @@ -0,0 +1,115 @@ +.\" -*- 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/ext4 file system information +.SH SYNOPSIS +.B dumpe2fs +[ +.B \-bfghixV +] +[ +.B \-o superblock=\fIsuperblock +] +[ +.B \-o blocksize=\fIblocksize +] +.I device +.SH DESCRIPTION +.B dumpe2fs +prints the super block and blocks group information for the file system +present on +.I device. +.PP +.B Note: +When used with a mounted file system, the printed +information may be old or inconsistent. +.SH OPTIONS +.TP +.B \-b +print the blocks which are reserved as bad in the file system. +.TP +.B \-o superblock=\fIsuperblock +use the block +.I superblock +when examining the file system. +This option is not usually needed except by a file system wizard who +is examining the remains of a very badly corrupted file system. +.TP +.B \-o blocksize=\fIblocksize +use blocks of +.I blocksize +bytes when examining the file system. +This option is not usually needed except by a file system wizard who +is examining the remains of a very badly corrupted file system. +.TP +.B \-f +force dumpe2fs to display a file system even though it may have some +file system feature flags which dumpe2fs may not understand (and which +can cause some of dumpe2fs's display to be suspect). +.TP +.B \-g +display the group descriptor information in a machine readable colon-separated +value format. The fields displayed are the group number; the number of the +first block in the group; the superblock location (or -1 if not present); the +range of blocks used by the group descriptors (or -1 if not present); the block +bitmap location; the inode bitmap location; and the range of blocks used by the +inode table. +.TP +.B \-h +only display the superblock information and not any of the block +group descriptor detail information. +.TP +.B \-i +display the file system data from an image file created by +.BR e2image , +using +.I device +as the pathname to the image file. +.TP +.B \-m +If the +.B mmp +feature is enabled on the file system, check if +.I device +is in use by another node, see +.BR e2mmpstatus (8) +for full details. If used together with the +.B \-i +option, only the MMP block information is printed. +.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 EXIT CODE +.B dumpe2fs +exits with a return code of 0 if the operation completed without errors. +It will exit with a non-zero return code if there are any errors, such +as problems reading a valid superblock, bad checksums, or if the device +is in use by another node and +.B -m +is specified. +.SH BUGS +You may need to know the physical file system 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 e2mmpstatus (8), +.BR mke2fs (8), +.BR tune2fs (8). +.BR ext4 (5) + |