| .\" -*- nroff -*- | |
| .\" Copyright 2008 by Theodore Ts'o. All Rights Reserved. | |
| .\" This file may be copied under the terms of the GNU Public License. | |
| .\" | |
| .TH E2UNDO 8 "@E2FSPROGS_MONTH@ @E2FSPROGS_YEAR@" "E2fsprogs version @E2FSPROGS_VERSION@" | |
| .SH NAME | |
| e2undo \- Replay an undo log for an ext2/ext3/ext4 filesystem | |
| .SH SYNOPSIS | |
| .B e2undo | |
| [ | |
| .B \-f | |
| ] | |
| [ | |
| .B \-h | |
| ] | |
| [ | |
| .B \-n | |
| ] | |
| [ | |
| .B \-v | |
| ] | |
| .I undo_log device | |
| .SH DESCRIPTION | |
| .B e2undo | |
| will replay the undo log | |
| .I undo_log | |
| for an ext2/ext3/ext4 filesystem found on | |
| .IR device . | |
| This can be | |
| used to undo a failed operation by an e2fsprogs program. | |
| .SH OPTIONS | |
| .TP | |
| .B \-f | |
| Normally, | |
| .B e2undo | |
| will check the filesystem superblock to make sure the undo log matches | |
| with the filesystem on the device. If they do not match, | |
| .B e2undo | |
| will refuse to apply the undo log as a safety mechanism. The | |
| .B \-f | |
| option disables this safety mechanism. | |
| .TP | |
| .B \-h | |
| Display a usage message. | |
| .TP | |
| .B \-n | |
| Dry-run; do not actually write blocks back to the filesystem. | |
| .TP | |
| .BI \-o " offset" | |
| Specify the filesystem's | |
| .I offset | |
| (in bytes) from the beginning of the device or file. | |
| .TP | |
| .B \-v | |
| Report which block we're currently replaying. | |
| .SH AUTHOR | |
| .B e2undo | |
| was written by Aneesh Kumar K.V. (aneesh.kumar@linux.vnet.ibm.com) | |
| .SH AVAILABILITY | |
| .B e2undo | |
| is part of the e2fsprogs package and is available from | |
| http://e2fsprogs.sourceforge.net. | |
| .SH SEE ALSO | |
| .BR mke2fs (8), | |
| .BR tune2fs (8) | |