[CentOS] Drive recovery?

Ashley M. Kirchner ashley at pcraft.com
Tue May 10 18:24:00 UTC 2011


     I have a CentOS 5.6 system (recently installed) that, for some 
reason, has decided to mangle one of its drives, specifically /dev/hde1 
...  No errors anywhere, just rebooted the machine over the weekend and 
it's gone.  Up till the reboot, the drive was fine, I was writing to it 
without a problem.

     fdisk tells me:

----------
# fdisk -l /dev/hde

Disk /dev/hde: 160.0 GB, 160041885696 bytes
240 heads, 63 sectors/track, 20673 cylinders
Units = cylinders of 15120 * 512 = 7741440 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/hde1   *           1       20673   156287848+  83  Linux
----------

     There are no hardware errors in the boot log (dmesg).  The only 
error is that it can't find the ext3 fs that was on that drive.  
Unfortunately, it's not a drive I can simply reformat and call it a 
day.  There's data on it I need.

     When I try to mount it, I get: hfs: unable to find HFS+ 
superblock.  Obviously that's not right as the drive was formatted as an 
ext3.  So if I force it, I get this:

----------
mount -t ext3 /dev/hde1 /mnt/hde1
mount: wrong fs type, bad option, bad superblock on /dev/hde1,
        missing codepage or other error
        In some cases useful info is found in syslog - try
        dmesg | tail  or so
----------

     So, is this just an indication that the partition table is hosed?  
Is there anything, any tool, any way of reading the data off of this 
drive and put it elsewhere?



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