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Data recovery help needed

post #1 of 3
Thread Starter 
So I currently have a couple drives that have failed miserably. I am just trying to verify and possibly restore data. I know my likelihood of doing so already are pretty slim.

Anyways, right now... I have:
/dev/sda1: LABEL="root" UUID="no-not-for-you" TYPE="ext4"

So if I mount the drive:
root@server:~# mount -t ext4 /dev/sda1 /media/2tmp/
mount: wrong fs type, bad option, bad superblock on /dev/sda1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

dmesgoutput 150k .zip file

So at this point, I am not sure what do, there is a large amount of corruption, that is evident. If I use grubmount, the drive is mountable, but, I can't read anything or list anything. I have 3 other drives, that are exactly like this or have worse corruption, so I would appreciate any help you can give me.


I haven't cloned the drive yet, but I the time it takes for me to clone the drive, and the lag that I get while doing this removelt y makes this a problem, as this machine is no where near me, so I would really appreciate any commands you coould give me to help this process go by faster.
Edited by Lige - 9/22/13 at 2:31pm
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AMD Phenom II X6 1090T Crosshair IV Formula GTX 560 GTX 580 
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CoolingOSMonitorMonitor
Corsair H70 Windows 7 Professional x64 ASUS VH242H 23" Monitor ASUS VH242H 23" Monitor 
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post #2 of 3
Don't mount the drive, just run fsck against that unmounted device.
post #3 of 3
Thread Starter 
fsck was already run on the drive while it was unmounted (just cloned it over to /dev/sdf1)
oot@server:~# fsck -yft ext4 /dev/sdf1
fsck from util-linux 2.20.1
e2fsck 1.42.5 (29-Jul-2012)
ext2fs_open2: Bad magic number in super-block
fsck.ext4: Superblock invalid, trying backup blocks...
fsck.ext4: Bad magic number in super-block while trying to open /dev/sdf1

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

root@server:~# dumpe2fs /dev/sdf1
dumpe2fs 1.42.5 (29-Jul-2012)
dumpe2fs: Bad magic number in super-block while trying to open /dev/sdf1
Couldn't find valid filesystem superblock.


Even if I specify alternative superblocks, the same resutls are experienced.
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CPUMotherboardGraphicsGraphics
AMD Phenom II X6 1090T Crosshair IV Formula GTX 560 GTX 580 
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G. Skill F3-12800CL6D-4GBPI G. Skill F3-12800CL6D-4GBPI G. Skill F3-12800CL6D-4GBPI  G. Skill F3-12800CL6D-4GBPI 
Hard DriveHard DriveHard DriveOptical Drive
Seagate Hard Drive Seagate Hard Drive Crucial M4 SSD Sony Optiarc 
CoolingOSMonitorMonitor
Corsair H70 Windows 7 Professional x64 ASUS VH242H 23" Monitor ASUS VH242H 23" Monitor 
MonitorKeyboardPowerCase
Samsung SyncMaster 906BW 19" Monitor Logitech G15 Corsair 1K PSU Lian-Li 70A 
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G. Skill F3-12800CL6D-4GBPI G. Skill F3-12800CL6D-4GBPI G. Skill F3-12800CL6D-4GBPI  G. Skill F3-12800CL6D-4GBPI 
Hard DriveHard DriveHard DriveOptical Drive
Seagate Hard Drive Seagate Hard Drive Crucial M4 SSD Sony Optiarc 
CoolingOSMonitorMonitor
Corsair H70 Windows 7 Professional x64 ASUS VH242H 23" Monitor ASUS VH242H 23" Monitor 
MonitorKeyboardPowerCase
Samsung SyncMaster 906BW 19" Monitor Logitech G15 Corsair 1K PSU Lian-Li 70A 
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