From: Kan-Ru Chen Subject: Recover damaged ext4 volume Date: Wed, 15 Apr 2009 13:18:26 +0800 Message-ID: <87iql6lci5.fsf@kawa.kanru.info> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha1; protocol="application/pgp-signature" To: linux-ext4@vger.kernel.org Return-path: Received: from main.gmane.org ([80.91.229.2]:47836 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753985AbZDOFfI (ORCPT ); Wed, 15 Apr 2009 01:35:08 -0400 Received: from root by ciao.gmane.org with local (Exim 4.43) id 1Ltxm2-0003dp-S1 for linux-ext4@vger.kernel.org; Wed, 15 Apr 2009 05:35:02 +0000 Received: from 61-228-157-41.dynamic.hinet.net ([61.228.157.41]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 15 Apr 2009 05:35:02 +0000 Received: from ckanru by 61-228-157-41.dynamic.hinet.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 15 Apr 2009 05:35:02 +0000 Sender: linux-ext4-owner@vger.kernel.org List-ID: --=-=-= Content-Transfer-Encoding: quoted-printable Hi, It was a LVM lv formated to ext4 that can't mount anymore after resize. Both e2fsck and dumpe2fs can not find valid superblock or backup superblock. However, I can still read and recognize some data from the volume using hd. Is there any chance that I can get my files back? Following is the output of findsuper, lines with wrong mount time are stripped: byte_offset byte_start byte_end fs_blocks blksz grp last_mount_time= sb_uuid label 21140751872 21140750848 29059596800 1933312 4096 0 Mon Dec 8 18:2= 7:59 2008 f4890ad8=20 21188896256 21188895232 29107741184 1933312 4096 0 Mon Dec 8 18:2= 7:59 2008 f4890ad8=20 32368412672 32368411648 96792921088 15728640 4096 0 Thu Dec 11 22:5= 7:22 2008 bd5e4f31=20 45592096256 45592095232 45847046656 248976 1024 0 Tue Dec 9 20:1= 6:51 2008 931b7f03=20 =2D Kan --=-=-= Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAknlbnMACgkQmNgFODcAfIm19wCffxekf8IRM+CCGi5Jf/w5HW+x eQEAn0KrIaPsl1wB3h7x2cffCMCYMZkl =GX5W -----END PGP SIGNATURE----- --=-=-=--