need help to recover data from damaged hdd

[Alexander Appel]

Jeff Vian schrieb:
> 
> 
> Alexander Appel wrote:
> 
>> =========================Original message text=========================
>> While booted in knoppix or 'linux rescue' upon booting the fc1 disk1 
>> cd try using these options in your mount command:
>> -o ro,errors=continue
>>
>> Hopefully you will then be able to read most of your files, depending 
>> on what was in the bad sectors.
>> =======================End of original message text====================
>>
>> I tried to mount the hdd with the options above but got only another 
>> error message:
>> "wrong filesystem, illegal options, superblock of /dev/hdb1 is damaged 
>> or too many filesystems mounted"
>> (I'm not sure if I've translated the error messages allright - using a 
>> German system)
>> I'm pretty sure it is not the "wrong filesystem" because I used -t 
>> ext2 and there aren't too many filesystems mounted. The whole command 
>> I'm trying to use is:
>> "mount -t ext2 -o ro,errors=continue /dev/hdb1 ~/mnt/tmp"
>>
> You previously said the partition indicates a problem and you are unable 
> to even run fsck on it.
> If the superblock is damaged you can use fsck and tell it to use one of 
> the backup superblocks from the partition to  do its checks.  Man fsck 
> for more information on how to do that.  Doing it this way also fixes 
> the corrupt superblock.

I successfully (at least I can mount it again) did this with one of the 
partitions (hdb1). Sadly this is the least important partition on the 
drive. When I'm trying fsck on the other partitions I get either:
"attempt to read block from filesystem resulted in short read" or
"bad magic number in superblock"