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Re: No success repairing my ext4 file system so far, PLEASE HELP!

From Harry <simonsharry@gmail.com>
Newsgroups comp.os.linux.setup
Subject Re: No success repairing my ext4 file system so far, PLEASE HELP!
Date 2012-04-19 06:43 -0700
Organization http://groups.google.com
Message-ID <8829037.2106.1334843028094.JavaMail.geo-discussion-forums@pbcqs8> (permalink)
References <81fb3fa8-62ab-43be-9974-9cdb0df10197@h4g2000pbe.googlegroups.com>

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On Thursday, April 12, 2012 3:59:52 PM UTC+5:30, Harry wrote:
> Hello,
> I posted my question to superuser.com (http://superuser.com/questions/
> 410796/unable-to-repair-an-ext4-filesystem-with-bad-superblock) but
> haven't got any response yet.
> 
> In summary, not realizing what I was doing, I overwrote the first 446
> bytes of MBR via the DD command. Would greatly, *GREATLY* appreciate
> if someone could help me salvage my disk!
> 
> 
> =================
> Details of what I did:
> =================
> 
> Using the `dd` command, I was hoping that I would be able to copy over
> the first 446 bytes from Disk B (250GB) to Disk A (80GB), in order to
> make Disk A bootable just like Disk B. I issued the command:
> 
>     dd if=/dev/sdb of=/dev/sda bs=446 count=1
> 
> But when I could not boot up from `sda`, I rebooted from `sdb` to see
> what was going on. To my horror, `sda` was being reported to have a
> bad superblock, now.
> 
> Worse, I was **unable** to repair it via the backup superblocks stored
> on the ext4 filesystem. This is what I did. I first got the backup
> superblock addresses, like so:
> 
> 	[root@localhost liveuser]# mke2fs -n /dev/sda
> 	mke2fs 1.41.14 (22-Dec-2010)
> 	/dev/sda is entire device, not just one partition!
> 	Proceed anyway? (y,n) y
> 	Filesystem label=
> 	OS type: Linux
> 	Block size=4096 (log=2)
> 	Fragment size=4096 (log=2)
> 	Stride=0 blocks, Stripe width=0 blocks
> 	4890624 inodes, 19537686 blocks
> 	976884 blocks (5.00%) reserved for the super user
> 	First data block=0
> 	Maximum filesystem blocks=0
> 	597 block groups
> 	32768 blocks per group, 32768 fragments per group
> 	8192 inodes per group
> 	Superblock backups stored on blocks:
> 		32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632,
> 2654208,
> 		4096000, 7962624, 11239424
> 
> Then, I used `e2fsck -b SUPERBLOCK /dev/sda`, with each of the
> `SUPERBLOCK` values listed above, like so:
> 
>         [root@localhost liveuser]# e2fsck -b 32768 /dev/sda
> 	e2fsck 1.41.14 (22-Dec-2010)
> 	e2fsck: Bad magic number in super-block while trying to open /dev/sda
> 
> 	The superblock could not be read or does not describe a correct ext2
> 	filesystem.  If the device is valid and it really contains an ext2
> 	filesystem (and not swap or ufs or something else), then the
> superblock
> 	is corrupt, and you might try running e2fsck with an alternate
> superblock:
> 	    e2fsck -b 8193 <device>
> 
> I tried every single value, but each gave the above message!
> 
> **Is there anything that I could do NOW to salvage my precious disk?**
> This is an 80G disk with 2 partitions. The `/dev/sda1` partition is
> clean and is mountable; it is the `/dev/sda2` partition that is
> failing to work with commands like `mount`, `debugfs`, `dumpe2fs`,
> etc.
> 
> Running `mke2fs -n` for the individual partitions gave me this (notice
> how the **First Data Block** and **Maximum filesystem blocks** both
> show **0** as their value):
> 
> 	[root@localhost liveuser]# mke2fs -n /dev/sda1
> 	mke2fs 1.41.14 (22-Dec-2010)
> 	Filesystem label=
> 	OS type: Linux
> 	Block size=1024 (log=0)
> 	Fragment size=1024 (log=0)
> 	Stride=0 blocks, Stripe width=0 blocks
> 	128016 inodes, 512000 blocks
> 	25600 blocks (5.00%) reserved for the super user
> 	First data block=1
> 	Maximum filesystem blocks=67633152
> 	63 block groups
> 	8192 blocks per group, 8192 fragments per group
> 	2032 inodes per group
> 	Superblock backups stored on blocks:
> 		8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409
> 
> 	[root@localhost liveuser]# mke2fs -n /dev/sda2
> 	mke2fs 1.41.14 (22-Dec-2010)
> 	Filesystem label=
> 	OS type: Linux
> 	Block size=4096 (log=2)
> 	Fragment size=4096 (log=2)
> 	Stride=0 blocks, Stripe width=0 blocks
> 	4857856 inodes, 19409408 blocks
> 	970470 blocks (5.00%) reserved for the super user
> 	First data block=0
> 	Maximum filesystem blocks=0
> 	593 block groups
> 	32768 blocks per group, 32768 fragments per group
> 	8192 inodes per group
> 	Superblock backups stored on blocks:
> 		32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632,
> 2654208,
> 		4096000, 7962624, 11239424
> 
> I still don't know what was wrong in my `dd` command that corrupted my
> ext4 superblock. You cannot imagine how happy I will be if someone
> could help me recover my disk back... since, except fo this bad
> superblock, all the data is just sitting right there!
> 
> PLEASE HELP, my soul is crying as I write this :-((
> 
> PS: If I can get a response faster/better from another forum on the
> Net, please do point me to it.

After about 70 posts in this thread by some very helpful and knowledgeable members of this forum, I managed to run into this article:

    http://www.microdevsys.com/WordPress/2011/09/19/linux-lvm-recovering-a-lost-volume/

Though the specifics of my situation and the causes leading to it were different from the author's, I did manage to notice the 'vgcfgrestore' command that had been missing all along in all the various suggestions made. I decided to give it a try  - and lo and behold -  it worked!

While I'm VERY happy now at the prospect of a full data recovery (assuming no data was lost due to e2fsck's fixes), I'd still like to seek some final help from you folks in reconstructing the 'crime scene': basically, deducing from the following sequence of steps of the solution as to what must have gotten corrupted and how and why. I have already told my story enough number times in this thread and on superuser.com, but does it corroborate with these additional data points of the solution?

================
Solution:
================

a) I noticed that in the image of the partition, the string /dev/sda2 was written. Even though the LVM backup file said 

    device = "/dev/sda2"  # Hint only
    
, I decided to be a little *superstitious* and switched the data cables in my system once again so that the messed up disk once again became /dev/sda.

    $ fdisk -l               
    Disk /dev/sda: 80.0 GB, 80026361856 bytes
    255 heads, 63 sectors/track, 9729 cylinders, total 156301488 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00000000

       Device Boot      Start         End      Blocks   Id  System
    /dev/sda1   *        2048     1026047      512000   83  Linux
    /dev/sda2         1026048   156301311    77637632   8e  Linux LVM

b) I then restored the /etc/lvm directory.

    $ mv /etc/lvm.off /etc/lvm
    $ ls -l /etc/lvm/backup/
    total 4
    -rw-------. 1 root root 1456 Apr 19 09:16 vg_XYZ

c) I then issued an `lvm vgcfgrestore` and -- wow, unlike for the author of the above article -- the command worked for me!

    $ lvm vgcfgrestore vg_XYZ    
      Restored volume group vg_XYZ

    $ lvm vgscan
      Reading all physical volumes.  This may take a while...
      Found volume group "vg_XYZ" using metadata type lvm2

    $ lvm pvscan
      PV /dev/sda2   VG vg_XYZ   lvm2 [74.03 GiB / 0    free]
      Total: 1 [74.03 GiB] / in use: 1 [74.03 GiB] / in no VG: 0 [0   ]

    $ lvm vgchange -a y vg_XYZ
      2 logical volume(s) in volume group "vg_XYZ" now active

    $ lvm pvs
      PV         VG     Fmt  Attr PSize  PFree
      /dev/sda2  vg_XYZ lvm2 a--  74.03g    0 

    $ lvm vgs
      VG     #PV #LV #SN Attr   VSize  VFree
      vg_XYZ   1   2   0 wz--n- 74.03g    0 

    $ lvm lvs
      LV      VG     Attr   LSize  Origin Snap%  Move Log Copy%  Convert
      lv_root vg_XYZ -wi-a- 70.09g                                      
      lv_swap vg_XYZ -wi-a-  3.94g                                      

    $ mount /dev/vg_XYZ/lv_root /mnt/x/
    mount: you must specify the filesystem type

    $ mount -vvvvvv /dev/vg_XYZ/lv_root /mnt/x 
    mount: fstab path: "/etc/fstab"
    mount: mtab path:  "/etc/mtab"
    mount: lock path:  "/etc/mtab~"
    mount: temp path:  "/etc/mtab.tmp"
    mount: UID:        0
    mount: eUID:       0
    mount: spec:  "/dev/mapper/vg_XYZ-lv_root"
    mount: node:  "/mnt/x"
    mount: types: "(null)"
    mount: opts:  "(null)"
    mount: you didn't specify a filesystem type for /dev/mapper/vg_XYZ-lv_root
           I will try all types mentioned in /etc/filesystems or /proc/filesystems
    Trying ext4
    mount: mount(2) syscall: source: "/dev/mapper/vg_XYZ-lv_root", target: "/mnt/x", filesystemtype: "ext4", mountflags: -1058209792, data: (null)
    Trying ext3
    mount: mount(2) syscall: source: "/dev/mapper/vg_XYZ-lv_root", target: "/mnt/x", filesystemtype: "ext3", mountflags: -1058209792, data: (null)
    Trying ext2
    mount: mount(2) syscall: source: "/dev/mapper/vg_XYZ-lv_root", target: "/mnt/x", filesystemtype: "ext2", mountflags: -1058209792, data: (null)
    Trying iso9660
    mount: mount(2) syscall: source: "/dev/mapper/vg_XYZ-lv_root", target: "/mnt/x", filesystemtype: "iso9660", mountflags: -1058209792, data: (null)
    Trying vfat
    mount: mount(2) syscall: source: "/dev/mapper/vg_XYZ-lv_root", target: "/mnt/x", filesystemtype: "vfat", mountflags: -1058209792, data: (null)
    Trying hfs
    mount: mount(2) syscall: source: "/dev/mapper/vg_XYZ-lv_root", target: "/mnt/x", filesystemtype: "hfs", mountflags: -1058209792, data: (null)
    Trying hfsplus
    mount: mount(2) syscall: source: "/dev/mapper/vg_XYZ-lv_root", target: "/mnt/x", filesystemtype: "hfsplus", mountflags: -1058209792, data: (null)
    mount: you must specify the filesystem type


d) At this point, I decide to repair the filesystem relying on the strength of my backed up image of the messed up disk. In other words, even if my e2fsck'ing were to wreak further havoc on the disk, I could always return to Step (c) above.

    $ e2fsck /dev/mapper/vg_XYZ-lv_root
    
I had to say 'y' to so many tons and tons of 

    Directories count wrong for group #<NNN>
    
prompts that I had almost given up hope.

e) Verification if the partition was clean.

    $ e2fsck /dev/mapper/vg_XYZ-lv_root 
    e2fsck 1.41.14 (22-Dec-2010)
    /dev/mapper/vg_XYZ-lv_root: clean, 912765/4595712 files, 14271569/18374656 blocks

f) Mounting.

    $ mount /dev/mapper/vg_XYZ-lv_root /mnt/x
    
    $ ls -l /mnt/x
    total 144
    dr-xr-xr-x.   2 root root  4096 Apr  8 09:39 bin
    drwxr-xr-x.   2 root root  4096 Oct 25 18:30 boot
    drwxr-xr-x.   2 root root  4096 Mar  3  2011 cgroup
    drwxr-xr-x.   2 root root  4096 Oct 25 18:30 dev
    drwxr-xr-x. 189 root root 12288 Apr 10 12:44 etc
    drwxr-xr-x.   8 root root  4096 Jan  5 10:11 home
    dr-xr-xr-x.  23 root root 12288 Mar 14 03:23 lib
    drwx------.   2 root root 16384 Oct 25 18:30 lost+found
    drwxr-xr-x.   2 root root  4096 Jul 29  2011 media
    drwxr-xr-x.   3 root root  4096 Jul 29  2011 mnt
    drwxr-xr-x.   5 root root  4096 Jan 30 22:00 opt
    drwxr-xr-x.   2 root root  4096 Oct 25 18:30 proc
    dr-xr-x---.  25 root root  4096 Apr 10 12:43 root
    drwxr-xr-x.  36 root root  4096 Nov 20 09:09 run
    dr-xr-xr-x.   2 root root 12288 Mar 13 06:32 sbin
    drwxr-xr-x.   2 root root  4096 Dec 31 08:29 selinux
    drwxr-xr-x.   2 root root  4096 Jul 29  2011 srv
    drwxr-xr-x.   2 root root  4096 Oct 25 18:30 sys
    drwxrwxrwt.  49 root root 28672 Apr 10 12:44 tmp
    drwxr-xr-x.  12 root root  4096 Nov 20 07:18 usr
    drwxr-xr-x.  22 root root  4096 Jan  4 10:15 var

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Thread

No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-12 03:29 -0700
  Re: No success repairing my ext4 file system so far, PLEASE HELP! Richard Kettlewell <rjk@greenend.org.uk> - 2012-04-12 11:46 +0100
    Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-12 04:08 -0700
      Re: No success repairing my ext4 file system so far, PLEASE HELP! Richard Kettlewell <rjk@greenend.org.uk> - 2012-04-12 12:36 +0100
        Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-12 05:25 -0700
          Re: No success repairing my ext4 file system so far, PLEASE HELP! Richard Kettlewell <rjk@greenend.org.uk> - 2012-04-12 13:49 +0100
            Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-12 06:09 -0700
              Re: No success repairing my ext4 file system so far, PLEASE HELP! Richard Kettlewell <rjk@greenend.org.uk> - 2012-04-12 19:18 +0100
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-12 11:49 -0700
              Re: No success repairing my ext4 file system so far, PLEASE HELP! Doug Freyburger <dfreybur@yahoo.com> - 2012-04-12 18:27 +0000
              Re: No success repairing my ext4 file system so far, PLEASE HELP! Doug Freyburger <dfreybur@yahoo.com> - 2012-04-12 18:51 +0000
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-12 12:12 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2012-04-12 17:15 -0400
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-12 20:30 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-13 06:58 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-13 07:13 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Robert Nichols <SEE_SIGNATURE@localhost.localdomain.invalid> - 2012-04-13 19:29 -0500
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-13 21:27 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Robert Nichols <SEE_SIGNATURE@localhost.localdomain.invalid> - 2012-04-14 07:58 -0500
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-14 06:35 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Robert Nichols <SEE_SIGNATURE@localhost.localdomain.invalid> - 2012-04-14 19:59 -0500
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-14 19:58 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-14 20:13 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Robert Nichols <SEE_SIGNATURE@localhost.localdomain.invalid> - 2012-04-15 15:14 -0500
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-16 02:39 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Robert Nichols <SEE_SIGNATURE@localhost.localdomain.invalid> - 2012-04-16 08:50 -0500
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-16 08:02 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-16 10:39 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-16 11:08 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Robert Nichols <SEE_SIGNATURE@localhost.localdomain.invalid> - 2012-04-16 15:58 -0500
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-16 23:02 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Robert Nichols <SEE_SIGNATURE@localhost.localdomain.invalid> - 2012-04-17 10:58 -0500
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-18 21:53 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Doug Freyburger <dfreybur@yahoo.com> - 2012-04-19 16:45 +0000
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-19 18:34 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Doug Freyburger <dfreybur@yahoo.com> - 2012-04-20 17:19 +0000
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-21 20:37 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Doug Freyburger <dfreybur@yahoo.com> - 2012-04-25 16:01 +0000
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-28 16:32 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Doug Freyburger <dfreybur@yahoo.com> - 2012-04-16 19:15 +0000
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-16 21:20 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-13 21:40 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-13 21:56 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Doug Freyburger <dfreybur@yahoo.com> - 2012-04-16 18:47 +0000
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-16 20:19 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! unruh <unruh@invalid.ca> - 2012-04-13 15:22 +0000
                Re: No success repairing my ext4 file system so far, PLEASE HELP! J G Miller <miller@yoyo.ORG> - 2012-04-13 17:13 +0000
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-13 21:58 -0700
          Re: No success repairing my ext4 file system so far, PLEASE HELP! unruh <unruh@invalid.ca> - 2012-04-12 15:50 +0000
            Re: No success repairing my ext4 file system so far, PLEASE HELP! The Natural Philosopher <tnp@invalid.invalid> - 2012-04-12 21:37 +0100
      Re: No success repairing my ext4 file system so far, PLEASE HELP! unruh <unruh@invalid.ca> - 2012-04-12 15:46 +0000
        Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-12 09:35 -0700
          Re: No success repairing my ext4 file system so far, PLEASE HELP! unruh <unruh@invalid.ca> - 2012-04-12 18:57 +0000
  Re: No success repairing my ext4 file system so far, PLEASE HELP! Doug Freyburger <dfreybur@yahoo.com> - 2012-04-12 15:59 +0000
    Re: No success repairing my ext4 file system so far, PLEASE HELP! unruh <unruh@invalid.ca> - 2012-04-12 16:39 +0000
      Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-12 09:53 -0700
        Re: No success repairing my ext4 file system so far, PLEASE HELP! unruh <unruh@invalid.ca> - 2012-04-12 19:03 +0000
    Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-12 09:48 -0700
      Re: No success repairing my ext4 file system so far, PLEASE HELP! unruh <unruh@invalid.ca> - 2012-04-12 19:07 +0000
    Re: No success repairing my ext4 file system so far, PLEASE HELP! Richard Kettlewell <rjk@greenend.org.uk> - 2012-04-12 18:43 +0100
      Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-12 10:55 -0700
      Re: No success repairing my ext4 file system so far, PLEASE HELP! Doug Freyburger <dfreybur@yahoo.com> - 2012-04-12 18:07 +0000
        Re: No success repairing my ext4 file system so far, PLEASE HELP! Richard Kettlewell <rjk@greenend.org.uk> - 2012-04-12 19:20 +0100
          Re: No success repairing my ext4 file system so far, PLEASE HELP! unruh <unruh@invalid.ca> - 2012-04-12 19:11 +0000
            Re: No success repairing my ext4 file system so far, PLEASE HELP! Richard Kettlewell <rjk@greenend.org.uk> - 2012-04-12 20:39 +0100
              Re: No success repairing my ext4 file system so far, PLEASE HELP! Doug Freyburger <dfreybur@yahoo.com> - 2012-04-13 16:50 +0000
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-13 21:24 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Doug Freyburger <dfreybur@yahoo.com> - 2012-04-16 19:04 +0000
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-16 21:44 -0700
                Re: No success repairing my ext4 file system so far, PLEASE HELP! unruh <unruh@invalid.ca> - 2012-04-17 17:18 +0000
                Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-17 18:41 -0700
      Re: No success repairing my ext4 file system so far, PLEASE HELP! unruh <unruh@invalid.ca> - 2012-04-12 19:09 +0000
    Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-12 10:46 -0700
      Re: No success repairing my ext4 file system so far, PLEASE HELP! unruh <unruh@invalid.ca> - 2012-04-12 19:13 +0000
        Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-12 12:21 -0700
          Re: No success repairing my ext4 file system so far, PLEASE HELP! unruh <unruh@invalid.ca> - 2012-04-12 20:12 +0000
  Re: No success repairing my ext4 file system so far, PLEASE HELP! g.fink@gmx.net (Gernot Fink) - 2012-04-12 18:20 +0000
  Re: No success repairing my ext4 file system so far, PLEASE HELP! The Natural Philosopher <tnp@invalid.invalid> - 2012-04-12 21:35 +0100
  Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-19 06:43 -0700
    Re: No success repairing my ext4 file system so far, PLEASE HELP! Bob <SEE_SIGNATURE@localhost.localdomain.invalid> - 2012-04-19 11:29 -0500
      Re: No success repairing my ext4 file system so far, PLEASE HELP! Harry <simonsharry@gmail.com> - 2012-04-19 18:50 -0700

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