people who know something about hardware 7 replies, 17381 views

Tim E. Husk
9/11/2012 12:16:00 PM

External HD apparently has a few bad blocks, which affect a very small portion of the total files stored on it, but they are important nonetheless. They cannot be transfered from the Ex HD to the HD on my laptop or desktop running Linux (Ubuntu, Debian) and Windows 7. This part is simple enough - it gives an I/O error.


Since the problem appears to be physical (i.e., it's not a FAT32/NTFS formatting problem with Windows or Linux, and my EXT4 on Linux is just fine; drive has been defragged and scanned; Linux scan revealed a few bad blocks), is there any way to recover these files for transfer to an internal HD?

9/11/2012 12:29:00 PM
i suggest trying virtuallab: click here for link
9/11/2012 12:30:00 PM
in my experience, you'll be lucky to recover it.
Tim E. Husk
9/11/2012 12:39:00 PM
Thanks, I'll check it out.

One thing that just occurred to me, at least for the PDF files, is to try printing them to file as PDFs to the internal HD. Probably the same rules apply to that process, but it would be creating the file anew rather than just copying it.
9/11/2012 12:51:00 PM
whats the actual monetary value of these files to you? its fairly unlikely that any of the "recovery" software tools you may come across will do the trick if what you already tried hasn't worked, so you may want to send it off somewhere.

i had a bad drive that could not be mounted from mac, windows, or linux in any way. i sent it to OnTrack and it actually ended up being destroyed beyond repair due to basically being melted (it was in an older macbook, terrible ventilation and a shitty/dead fan) and the spindle hit the platters and broke shit.

i paid like $50 for the evaluation, then was told it was over from there. the initial call quoted $600-1000 to do a clean-room transfer of the platters into a rebuilt filesystem...or something. they're probably the best company out there for this type of thing.
Tim E. Husk
9/11/2012 12:56:00 PM
Ouch. As far as I can tell, the affected files are mostly PDFs and document files from translations I have done and could, if I had loads of extra time, redo with no problem. Probably not worth $600-1000.
Tim E. Husk
9/11/2012 1:27:00 PM
Sweet Jesus, my last desperate trick worked. I split the PDFs into a few separate chunks and saved each one on my desktop. It worked, and now all I have to do is reattach them.
9/11/2012 1:31:00 PM