On Sun, Sep 19, 2004 at 10:58:51PM +0100, Jonathon McKitrick wrote: > When I boot up, the drive makes clanking sounds I've never heard before, and > never finishes the load. I'm going to make a rescue disk, but does anyone > have a strategy for how I could handle the delicate job of getting my > updated data off the drive without making matters worse? So far, I figure I > will boot the rescue disk and try to mount the filesystems.
'Clanking noises' -- that's either the bearings on the spindle worn loose or the mechanism that moves the heads out of alignment. In either case, I'd say your drive is not so much dying, as dead. About the only thing you can do is boot up from alternate media and see if anything can be read from the old drive -- don't get too hopeful though. dd(1)-ing the partitions from the dead drive into files on some other machine and then turning each of those into a file backed md(4) device which you then fsck(1) into some sort of order might get you further than most other strategies, as it allows you to scan sequentially across the drive Failing that, it should be possible for a data recovery company to read much of the disk contents using what is a essentially an electron microsope with a few modifications. About the only thing that can't deal with is a head crash so bad it scrapes away large chunks of disk surface -- even so, it would be able to read most of the rest of the drive. Only problem is such services are quite expensive... Cheers, Matthew -- Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks Savill Way PGP: http://www.infracaninophile.co.uk/pgpkey Marlow Tel: +44 1628 476614 Bucks., SL7 1TH UK
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