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Linux EXT3 superblock recovery

 
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# 6  
Old 08-28-2008
Quote:
Originally Posted by lochraven
I let the fsck continue, answering 'y' to everything.
When it was finished I was able to mount the filesystem as ext2 and all data was still there.
Great! Now you want to go back and re-create the journal. Do a man on tune2fs. It helps if you have a spare partition, but it is not necessary. You want to do something like:
Code:
tune2fs -j /dev/hdc

To enable the hdc with journaling.
Last edited by Yogesh Sawant; 03-01-2011 at 06:21 AM.. Reason: added code tags
 
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LEARN ABOUT CENTOS

dumpe2fs

DUMPE2FS(8)						      System Manager's Manual						       DUMPE2FS(8)

NAME

       dumpe2fs - dump ext2/ext3/ext4 filesystem information

SYNOPSIS

       dumpe2fs [ -bfhixV ] [ -o superblock=superblock ] [ -o blocksize=blocksize ] device

DESCRIPTION

       dumpe2fs prints the super block and blocks group information for the filesystem present on device.

       Note: When used with a mounted filesystem, the printed information may be old or inconsistent.

OPTIONS

       -b     print the blocks which are reserved as bad in the filesystem.

       -o superblock=superblock
	      use  the	block  superblock  when  examining the filesystem.  This option is not usually needed except by a filesystem wizard who is
	      examining the remains of a very badly corrupted filesystem.

       -o blocksize=blocksize
	      use blocks of blocksize bytes when examining the filesystem.  This option is not usually needed except by a filesystem wizard who is
	      examining the remains of a very badly corrupted filesystem.

       -f     force  dumpe2fs to display a filesystem even though it may have some filesystem feature flags which dumpe2fs may not understand (and
	      which can cause some of dumpe2fs's display to be suspect).

       -h     only display the superblock information and not any of the block group descriptor detail information.

       -i     display the filesystem data from an image file created by e2image, using device as the pathname to the image file.

       -x     print the detailed group information block numbers in hexadecimal format

       -V     print the version number of dumpe2fs and exit.

BUGS

       You need to know the physical filesystem structure to understand the output.

AUTHOR

       dumpe2fs was written by Remy Card <Remy.Card@linux.org>.  It is currently being maintained by Theodore Ts'o <tytso@alum.mit.edu>.

AVAILABILITY

       dumpe2fs is part of the e2fsprogs package and is available from http://e2fsprogs.sourceforge.net.

SEE ALSO

       e2fsck(8), mke2fs(8), tune2fs(8).  ext4(5)

E2fsprogs version 1.42.9					   December 2013						       DUMPE2FS(8)