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You must have a USB key or installation CD's.

I bought the new hard drive, installed it, but now it won't boot up to OS Mountain lion(dvd) I downloaded from Apple .

Do I have to format disk first, if so, how do I do that?
 
WRONG. Absolutely completely WRONG. You should NEVER trust the cloud as the only storage location for your data.

Store your data on your local disks, and BACK UP to the cloud, or to other local disks. Anything in the cloud can go away any time and there's absolutely nothing you can do about it. Look at Geocities, MobileMe, and other cloud services that have shut down over the years.

Trusting the cloud is the worst thing anyone can do if they care about your data. It's actually worse than storing your data on a single hard drive with no backups.

Luckily with iCloud (which granted, has little space), backs up to each computer you're signed on with.

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I bought the new hard drive, installed it, but now it won't boot up to OS Mountain lion(dvd) I downloaded from Apple .

Do I have to format disk first, if so, how do I do that?

Put the DVD in the drive, hold down "C" while booting up.

Once it's done booting, it'll automatically open the installer application (there's no finder, but whatever).

The menubar on the top of the screen should have a "Utilities" or "tools" menu, look for Disk Utility. Go into that program, use it to format your new drive, and then go back into the installer.

The installer should recognize your new drive as a candidate for installation.
 
is there a different purpose for time machine i'm not aware of? Not that i use it.

No. It seems to fail on files after say 10 hours with no indication of what file it was it could not read. I stopped using it as it was too maddening. All manner of backups from Macbook's to Mac Pro's. Granted they may have fixed it's earlier iterations but I lost faith in it. Way better faster options out there. I only suggest TM if you need versioning. You can be back up and running in an hour with an image or 5-10 hours with Time Machine. I needed speedy restores.
 
Try an external enclosure for the hard drive and connect it to the iMac. It should show in finder if you can access the files and then you can just copy over the files you need. I hope it goes that smoothly for you, anyway.

It was already recommended, thus why do you register here to just resurrect an older thread? I guess, you will not answer anyway.
 
You actually have recovered from a Time Machine backup? lol.

Yes. When an update killed one of the Mac Pro's here I simply rolled it back to an hour before said update and everything was fine. Took about 30 minutes.
 
HD Security format, Data Rescue

Olá,
I formatted my HD, security format, in my mac with mac os 10.6.8. I'm trying to recover data with Data Rescue3. These data are extremely important. What are my recovery rates?
 
really ?

you want to recover data from a non-working hard disk but don't even know how to format a hard disk ? I'd contact a data recovery company, in your position, as it appears that you may be out of your depth.
 
You can find Data Rescue 3 here:

http://www.prosofteng.com

It is not free, but will let you see what it can recover and will recover one test file without a purchase.

As for firewire target disk mode, the hard drive should show up as if it were an external hard drive on the other Mac, with or without any data recovery software. You may even be able to copy the files over directly, and not bother with the recover software.
 
Indeed. I love storing all of my stuff on unencrypted cloudy storage platforms. In addition, uploading TBs of data is so quick that it's really convenient.

/sarcasm.

There is a solution that addresses the concerns over cloud based storage - Arq from Haystacksoftware (www.haystacksoftware.com/arq/index.php)

- Backs up to Amazon S3/Glacier (Amazon will be around for a while I think)
- Encrypts with AES before leaving your machine (Secure in the cloud)
- Agent runs in background on machine, backs up differentially after initial backup completed

Support has been excellent and this provides me with my cloud based backup for 2.5TB of source video files, in addition to my offsite disk copy.

It took me a while to find this product, but works very well.
 
I just used the built in drive recovery method, of course it is hard to do, cryptic, and a PIA.

But it allowed me to rebuilt the drive long enough to get all the data off it.

Ran into the all the spare block being consumed and the drive platter material disintegrating and losing blocks every day.

Of course it was nice of the Apple tech to replace the drive based on a 3rd party app showing the drive smart check failing and why, while their software considered it good.
 
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