[CentOS] Drive recovery?

Steve Clark sclark at netwolves.com
Tue May 10 18:28:55 UTC 2011


On 05/10/2011 02:24 PM, Ashley M. Kirchner wrote:
>       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?
Have you tried using an alternate superblock?

-- 
Stephen Clark
*NetWolves*
Sr. Software Engineer III
Phone: 813-579-3200
Fax: 813-882-0209
Email: steve.clark at netwolves.com
http://www.netwolves.com
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