| .\" -*- 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) |
| |
