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Damage to Hard drive hangs drive repair apps
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Mac Elite
Join Date: Jan 2004
Status:
Offline
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I'm looking at a damaged internal hard drive in an intel iMac. I know that the drive is bad but via FW target mode I can get it to show up in disk utility. However DU only shows the drive, not the volume. On the face of it this looks like a case for DiskWarrior, however...
When I launch DiskWarrior the app hangs every time at the scanning for disks stage. Tech Tool Pro does the same. It can see the drive but as soon as I click on the volumes tab, it just hangs.
I've had a good google but can't find any info on why DiskWarrior should be hanging on a task that it seems ideally suited to.
Any comments/ideas?
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Administrator  Join Date: May 2000
Location: California
Status:
Offline
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Use the DiskWarrior CD (or TechTool Pro CD) to boot the Intel iMac. Basic disk repair can work fine over firewire, but I've had a few problems too where you needed to work through a native interface.
If they can't boot, use an external drive attached to the iMac. Boot the iMac from install DVD, install OSX to the external drive. Reboot from it, install DW and TTP, then use them to repair the internal drive.
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Moderator  Join Date: Apr 2001
Location: Wasilla, Alaska
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With certain types of drive failure, DiskWarrior can take a long time to "find" the drive. Let it sit for a good long time.
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Moderator  Join Date: May 2001
Location: Hilbert space
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If you mean `the hardware is bad' when you say your drive is bad, Disk Warrior or any other software is going to do zilch. Is the drive physically ok?
If the hardware is faulty, get a replacement now. Stop using the faulty drive for anything. You'll need the time for recovering data.
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I don't suffer from insanity, I enjoy every minute of it.
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Posting Junkie
Join Date: Dec 2000
Status:
Offline
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Sounds like the drive's got bad sectors, which is going to cause problems for any disk repair utility (even DiskWarrior).
If you've got another hard drive that's larger than the damaged one, the easiest way to get your data back is to image it to the larger drive by using the dd tool with the raw device (whichever /dev/rdiskX corresponds to your drive - you can find out which it is in Disk Utility), using the conv=noerror,sync option. Then you can mount the disk image using the hdiutil command with the -nomount flag, and fix it with DiskWarrior there, which should hopefully get it to be mountable, so you can get your data off.
You might also look into Data Rescue, which might also be able to help.
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