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.
5 .TH E2FSCK 8 "@E2FSPROGS_MONTH@ @E2FSPROGS_YEAR@" "E2fsprogs version @E2FSPROGS_VERSION@"
7 e2fsck \- check a Linux second extended file system
28 is used to check a Linux second extended file system.
31 is the special file corresponding to the device (e.g /dev/hdXX).
35 This option does the same thing as the
37 option. It is provided for backwards compatibility only; it is
38 suggested that people use
40 option whenever possible.
43 Instead of using the normal superblock, use the alternative superblock
50 will search for the superblock at various different
51 block sizes in an attempt to find the appropriate block size.
52 This search can be fooled in some cases. This option forces
54 to only try locating the superblock at a particular blocksize.
55 If the superblock is not found,
57 will terminate with a fatal error.
64 program to find any blocks which are bad on the filesystem,
65 and then marks them as bad by adding them to the bad block inode.
68 Print debugging output (useless unless you are debugging
72 Force checking even if the file system seems clean.
75 Flush the filesystem device's buffer caches before beginning. Only
76 really useful for doing
81 Add the blocks listed in the file specified by
83 to the list of bad blocks.
86 Set the bad blocks list to be the list of blocks specified by
88 (This option is the same as the
90 option, except the bad blocks list is cleared before the blocks listed
91 in the file are added to the bad blocks list.)
94 Open the filesystem read-only, and assume an answer of ``no'' to all
97 to be used non-interactively. (Note: if the
102 options are specified in addition to the
104 option, then the filesystem will be opened read-write, to permit the
105 bad-blocks list to be updated. However, no other changes will be made
109 Automatically repair ("preen") the file system without any questions.
112 This option does nothing at all; it is provided only for backwards
116 This option will byte-swap the filesystem so that it is using the normalized,
117 standard byte-order (which is i386 or little endian). If the filesystem is
118 already in the standard byte-order,
123 This option will byte-swap the filesystem, regardless of its current
127 Print timing statistics for
129 If this option is used twice, additional timing statistics are printed
130 on a pass by pass basis.
136 Print version information and exit.
139 Assume an answer of ``yes'' to all questions; allows
141 to be used non-interactively.
143 The exit code returned by
145 is the sum of the following conditions:
149 \ 1\ \-\ File system errors corrected
151 \ 2\ \-\ File system errors corrected, system should
153 \ \ \ \ be rebooted if file system was mounted
155 \ 4\ \-\ File system errors left uncorrected
157 \ 8\ \-\ Operational error
159 \ 16\ \-\ Usage or syntax error
161 \ 128\ \-\ Shared library error
164 Almost any piece of software will have bugs. If you manage to find a
165 filesystem which causes
169 is unable to repair, please report it to the author.
171 Please include as much information as possible in your bug report.
172 Ideally, include a complete transcript of the
174 run, so I can see exactly what error messages are displayed. If you
175 have a writeable filesystem where the transcript can be stored, the
177 program is a handy way to save the output of
181 It is also useful to send the output of
183 If a specific inode or inodes seems to be giving
185 trouble, try running the
187 command and send the output of the
189 command run on the relevant inode(s). If the inode is a directory, the
192 command will allow you to extract the contents of the directory inode,
193 which can sent to me after being first run through
196 Always include the full version string which
198 displays when it is run, so I know which version you are running.
202 was written by Theodore Ts'o <tytso@mit.edu>.