E2UNDO(8)		    System Manager's Manual		     E2UNDO(8)



NAME
       e2undo - Replay an undo log for an ext2/ext3/ext4 filesystem

SYNOPSIS
       e2undo [ -f ] [ -h ] [ -n ] [ -v ] undo_log device

DESCRIPTION
       e2undo will replay the undo log undo_log for an ext2/ext3/ext4 filesys-
       tem found on device.  This can be used to undo a failed operation by an
       e2fsprogs program.

OPTIONS
       -f     Normally,	 e2undo	 will  check the filesystem superblock to make
	      sure the undo log matches with the filesystem on the device.  If
	      they do not match, e2undo will refuse to apply the undo log as a
	      safety mechanism.	 The -f option disables this safety mechanism.

       -h     Display a usage message.

       -n     Dry-run; do not actually write blocks back to the filesystem.

       -o offset
	      Specify the filesystem's offset (in bytes) from the beginning of
	      the device or file.

       -v     Report which block we're currently replaying.

AUTHOR
       e2undo	    was	      written	   by	   Aneesh      Kumar	  K.V.
       (aneesh.kumar@linux.vnet.ibm.com)

AVAILABILITY
       e2undo  is  part	 of  the  e2fsprogs  package  and  is  available  from
       http://e2fsprogs.sourceforge.net.

SEE ALSO
       mke2fs(8), tune2fs(8)




E2fsprogs version 1.43.5	  August 2017			     E2UNDO(8)