SOLVED On Mon, Sep 3, 2012 at 8:48 PM, Arun Khan <[email protected]> wrote: > The unthinkable happened. > > One of my junior engineer did a > > dd_rescue <some_iso_image> /dev/sdc > > (instead of /dev/sdd) in a moment of haste > > /dev/sdc happens to be a 1TB HDD that held an ext4 partition and all > my archives (~650GB) were on it.
> > Any other suggestions welcome. > Thanks to all those who responded with suggestions. Unfortunately, after a week of several tries, the suggested tools were unable to recover anything intelligible. I sent the disk to a "data recovery service." They kept the disk for about 12 days trying their software based tools and were not meeting with much success. When I told them to return the disk back, they asked for 2 more days; apparently they a few more "ace" tools in their toolbox. A couple of days later I got a call that they had been able to recover 560GB of data. From what they reported it ran for a long time (they would not disclose the exact duration). When I visited their lab to verify the recovered data, the disk was connected to a "special" card [1] running on a Windows 7 desktop. I guess the hardware/software combo went down to the sector level and re-assembled the files. Pretty much all the files (from what I could recall) were there. I got the files back on a NTFS formatted disk. The cost was Rs. 12K. [1] The only thing the lab technician was ready to disclose - that the hardware had been imported card at considerable cost (Rs. 5 lacs) and it came only with Windows drivers. Lesson learnt: Tread with extreme caution when you are using disk and filesystem utility tools like dd, dd_rescue, fdisk, mkfs etc. Review and confirm the "target" location *before* hitting the return key! -- Arun Khan _______________________________________________ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
