Program to copy data from a bad disk?

[LI Xin]

Maxim Sobolev wrote:
> LI Xin wrote:
>> Hi,
>>
>> Recently my hard drive goes bad again, which has a lot of bad sectors 
>> for unknown reasons.  I am looking for some software that is capable 
>> of doing a sector-to-sector copy of the hard drive.
>>
>> I have tried dd but with conv=noerror,sync it would just fill 0's for 
>> the whole block size (say, in order to get best speed you will want 
>> bs=128k or even larger, but that means that you will lose data  when 1 
>> of these 256 sectors is bad).  Is there any program that is smarter 
>> which do a sector-to-sector copy for these failed blocks and use 
>> larger transfer buffer for others?
> 
> The src/tools/tools/recoverdisk does exactly that.

Ah, great, and especially it's available from LiveFS disc as 
/usr/sbin/recoverdisk!

Cheers,
-- 
Xin LI <delphij at delphij.net>	http://www.delphij.net/
FreeBSD - The Power to Serve!

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