Re: disk recovery

[Thomas Cameron <thomas cameron camerontech com>]

On Thu, 2005-05-26 at 17:58 -0500, Magee, Fred (MRC) wrote:
> Good afternoon.
> 
>  
> 
> Due to various reasons we have a classified system with no backup
> mechanism and have a hard drive with critical user data that has
> become corrupted.  Does anyone out there know of any software
> available that can go in and repair directories and other files?  We
> have 1000’s of hours of critical user data I need to recover and we
> cannot remove the disk from it’s location so sending it to a data
> recovery company is not possible.
> 
>  
> 
> When I do an ls –l on the old /home partition I see things like this:
> 
>  
> 
>             ?rwxr-xr-x    52 username1   username1 48621462 1657991535
> 15628596 May 26 15:56 username1/
> 
>             ?rwxr-xr-x    52 username2   username2 48621462 1657991535
> 15628596 May 26 15:56 username2/
> 
>             ?rwxr-xr-x    52 username3   username3 48621462 1657991535
> 15628596 May 26 15:56 username3/
> 
>             drwxr-xr-x      3 username4   username4 4096 May 23 13:45
> username4
> 
>  
> 
> The large numbers are different for each of the usernames but the
> basic structure looks to be similar.  Is there a way to force an fsck
> against this partition to see if it can recover anything?  We have
> done a dd if=/dev/sda of /dev/hdd bs= 32768 so I have an “exact” copy
> of the disk.  
> 
>  
> 
> Thanks for any information anyone can provide. 

I assume you've already tried fsck?

Thomas