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A DIY solution to an invalid node structure problem
Authored by: dkiechle on Feb 15, '07 01:51:21PM

I have no doubt that this worked for you, and I fully agree that Dr. Smoke rocks, but Disk Warrior would have solved your problem much more quickly -- this time and whenever you run into disk problems again. Believe me, you're not doing yourself any favors by not purchasing a vital utility like that. Isn't your time worth more than that?

Oh yes, one more thing: I have a full duplicate of all my disk partitions, inlcuding the boot partition, done with Retrospect Express to an external drive, so I can easily boot off my external drive, reformat my boot partition on the internal hard disk, then restore everything. I would no more think of using my main Mac without stuff like this than I would think of driving without seatbelts or insurance.

Daniel



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Seconded
Authored by: gidds on Feb 15, '07 03:23:29PM
Daniel puts things a bit strongly, but I'd agree with all he says.

DiskWarrior isn't particularly cheap, but it's a very important tool to have. It complements Disk First Aid/fsck, which can spot all sorts of problems quickly, and fix many. DiskWarrior uses a completely different method, so it can recover data and fix problems that nothing else can -- and in doing so, it'll optimise the directory, fix minor issues you'd never notice, and generally give your disk a bit of a spring clean. It's a really good thing to turn to when you're in trouble.

Also, I hope I don't have to tell everyone here that BACKUPS ARE A GOOD IDEA! HDs fail, apps crash, files get deleted by mistake, and if you're able to avoid several weeks' worth of work re-ripping all your CDs, typing in financial data, or crying over irreplaceable family photos, then you'll consider the time and money spent on backing up well worth it.

I too have an external FireWire drive which contains a clone of each of my drives. It's bootable, too; being able to boot from it has saved my bacon more than once. I used to use Carbon Copy Cloner, but now use SuperDuper! as it preserves the most data. (CCC doesn't do BSD flags, locked flag, creation date, HFS+ extended attributes, or ACLs. For lots more info and detailed comparisons of all the major backup tools, go to http://blog.plasticsfuture.org/2006/04/23/mac-backup-software-harmful/)

But whatever you use, make sure you've thought through what might happen, and worked out how much (or how little) preventative action it's worth you taking.

---
Andy/

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