Theodore Ts'o | a418d3a | 1997-04-26 14:00:26 +0000 | [diff] [blame] | 1 | .\" -*- nroff -*- |
| 2 | .\" Copyright 1993, 1994, 1995 by Theodore Ts'o. All Rights Reserved. |
| 3 | .\" This file may be copied under the terms of the GNU Public License. |
| 4 | .\" |
Theodore Ts'o | 74becf3 | 1997-04-26 14:37:06 +0000 | [diff] [blame] | 5 | .TH DUMPE2FS 8 "@E2FSPROGS_MONTH@ @E2FSPROGS_YEAR@" "E2fsprogs version @E2FSPROGS_VERSION@" |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 6 | .SH NAME |
Theodore Ts'o | 4f85854 | 2009-05-30 12:34:28 -0400 | [diff] [blame] | 7 | dumpe2fs \- dump ext2/ext3/ext4 filesystem information |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 8 | .SH SYNOPSIS |
| 9 | .B dumpe2fs |
Theodore Ts'o | 5c57647 | 1997-04-29 15:29:49 +0000 | [diff] [blame] | 10 | [ |
Theodore Ts'o | 348e43d | 2001-05-03 14:43:43 +0000 | [diff] [blame] | 11 | .B \-bfhixV |
Theodore Ts'o | 5c57647 | 1997-04-29 15:29:49 +0000 | [diff] [blame] | 12 | ] |
| 13 | [ |
Theodore Ts'o | db197a8 | 2008-02-26 19:05:33 -0500 | [diff] [blame] | 14 | .B \-o superblock=\fIsuperblock |
Theodore Ts'o | 02e7dd9 | 1999-06-18 00:48:41 +0000 | [diff] [blame] | 15 | ] |
| 16 | [ |
Theodore Ts'o | db197a8 | 2008-02-26 19:05:33 -0500 | [diff] [blame] | 17 | .B \-o blocksize=\fIblocksize |
Theodore Ts'o | 02e7dd9 | 1999-06-18 00:48:41 +0000 | [diff] [blame] | 18 | ] |
Theodore Ts'o | caf8ce4 | 1999-10-21 19:56:34 +0000 | [diff] [blame] | 19 | .I device |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 20 | .SH DESCRIPTION |
Theodore Ts'o | caf8ce4 | 1999-10-21 19:56:34 +0000 | [diff] [blame] | 21 | .B dumpe2fs |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 22 | prints the super block and blocks group information for the filesystem |
| 23 | present on |
| 24 | .I device. |
| 25 | .PP |
JP Abgrall | e0ed740 | 2014-03-19 19:08:39 -0700 | [diff] [blame] | 26 | .B Note: |
| 27 | When used with a mounted filesystem, the printed |
| 28 | information may be old or inconsistent. |
Theodore Ts'o | 5c57647 | 1997-04-29 15:29:49 +0000 | [diff] [blame] | 29 | .SH OPTIONS |
| 30 | .TP |
Theodore Ts'o | caf8ce4 | 1999-10-21 19:56:34 +0000 | [diff] [blame] | 31 | .B \-b |
Theodore Ts'o | 5c57647 | 1997-04-29 15:29:49 +0000 | [diff] [blame] | 32 | print the blocks which are reserved as bad in the filesystem. |
| 33 | .TP |
Theodore Ts'o | db197a8 | 2008-02-26 19:05:33 -0500 | [diff] [blame] | 34 | .B \-o superblock=\fIsuperblock |
Theodore Ts'o | caf8ce4 | 1999-10-21 19:56:34 +0000 | [diff] [blame] | 35 | use the block |
| 36 | .I superblock |
| 37 | when examining the filesystem. |
Theodore Ts'o | 02e7dd9 | 1999-06-18 00:48:41 +0000 | [diff] [blame] | 38 | This option is not usually needed except by a filesystem wizard who |
Theodore Ts'o | 8139367 | 2005-04-16 14:05:09 -0400 | [diff] [blame] | 39 | is examining the remains of a very badly corrupted filesystem. |
Theodore Ts'o | 02e7dd9 | 1999-06-18 00:48:41 +0000 | [diff] [blame] | 40 | .TP |
Theodore Ts'o | db197a8 | 2008-02-26 19:05:33 -0500 | [diff] [blame] | 41 | .B \-o blocksize=\fIblocksize |
Theodore Ts'o | caf8ce4 | 1999-10-21 19:56:34 +0000 | [diff] [blame] | 42 | use blocks of |
| 43 | .I blocksize |
| 44 | bytes when examining the filesystem. |
Theodore Ts'o | 02e7dd9 | 1999-06-18 00:48:41 +0000 | [diff] [blame] | 45 | This option is not usually needed except by a filesystem wizard who |
Theodore Ts'o | 8139367 | 2005-04-16 14:05:09 -0400 | [diff] [blame] | 46 | is examining the remains of a very badly corrupted filesystem. |
Theodore Ts'o | 02e7dd9 | 1999-06-18 00:48:41 +0000 | [diff] [blame] | 47 | .TP |
Theodore Ts'o | caf8ce4 | 1999-10-21 19:56:34 +0000 | [diff] [blame] | 48 | .B \-f |
Theodore Ts'o | 2740156 | 1999-09-14 20:11:19 +0000 | [diff] [blame] | 49 | force dumpe2fs to display a filesystem even though it may have some |
| 50 | filesystem feature flags which dumpe2fs may not understand (and which |
| 51 | can cause some of dumpe2fs's display to be suspect). |
| 52 | .TP |
Theodore Ts'o | caf8ce4 | 1999-10-21 19:56:34 +0000 | [diff] [blame] | 53 | .B \-h |
Theodore Ts'o | 2740156 | 1999-09-14 20:11:19 +0000 | [diff] [blame] | 54 | only display the superblock information and not any of the block |
| 55 | group descriptor detail information. |
| 56 | .TP |
Theodore Ts'o | 348e43d | 2001-05-03 14:43:43 +0000 | [diff] [blame] | 57 | .B \-i |
| 58 | display the filesystem data from an image file created by |
| 59 | .BR e2image , |
| 60 | using |
| 61 | .I device |
| 62 | as the pathname to the image file. |
| 63 | .TP |
Theodore Ts'o | 80c22c9 | 2000-08-14 15:32:11 +0000 | [diff] [blame] | 64 | .B \-x |
| 65 | print the detailed group information block numbers in hexadecimal format |
| 66 | .TP |
Theodore Ts'o | caf8ce4 | 1999-10-21 19:56:34 +0000 | [diff] [blame] | 67 | .B \-V |
Theodore Ts'o | 583ccdc | 1997-05-09 03:06:31 +0000 | [diff] [blame] | 68 | print the version number of |
| 69 | .B dumpe2fs |
| 70 | and exit. |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 71 | .SH BUGS |
| 72 | You need to know the physical filesystem structure to understand the |
| 73 | output. |
| 74 | .SH AUTHOR |
| 75 | .B dumpe2fs |
Theodore Ts'o | 2e5a1b9 | 2004-01-31 20:27:36 -0500 | [diff] [blame] | 76 | was written by Remy Card <Remy.Card@linux.org>. It is currently being |
| 77 | maintained by Theodore Ts'o <tytso@alum.mit.edu>. |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 78 | .SH AVAILABILITY |
| 79 | .B dumpe2fs |
Theodore Ts'o | 12da49c | 2001-05-12 15:49:17 +0000 | [diff] [blame] | 80 | is part of the e2fsprogs package and is available from |
Theodore Ts'o | 348e43d | 2001-05-03 14:43:43 +0000 | [diff] [blame] | 81 | http://e2fsprogs.sourceforge.net. |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 82 | .SH SEE ALSO |
| 83 | .BR e2fsck (8), |
| 84 | .BR mke2fs (8), |
JP Abgrall | e0ed740 | 2014-03-19 19:08:39 -0700 | [diff] [blame] | 85 | .BR tune2fs (8). |
| 86 | .BR ext4 (5) |
Theodore Ts'o | 348e43d | 2001-05-03 14:43:43 +0000 | [diff] [blame] | 87 | |