Hard Drive will not Mount

I have a Seagate Barracuda 1.5 Gig installed in a MacPro as an additional drive and as of today the drive will not mount. Yersterday I noticed it ejected itself; I immediately rebooted and started to download the data to another drive but it ejected itself again after about 25% complete copy. I attempted to "verify drive" with Disk Utility but it was not listed. This morning it will will not mount. The drive is still under warranty so replacement is not an issue. Where I am at a loss is recovering the data. I fired up time machine and there was no data from this drive backed up (Bay 2). I checked the preferrences and the drive was not "excluded". So, I'm at a loss as to how or if I can recovery any data. I removed the drive from the MacPro and fired it up in a docking station (SATA) without results; still will not mount. Is recovering my data beyond hope? Any ideas or tips would be appreciated.
Thanks,
Koyangie

Hatter,
Tried Recovery Mode without success. Although the drive appears in Disk Utility I get an error after selecting Restore! If I click on the Image icon it will not list the contents.
There is perhaps .6 TB on this driver (images). After I posted and received yourt reply I took another look at my Time Machine and found all my data under Shared. What a relief.
Thanks for your advice. I'll return the drive to Seagate for a replacement. Hopefull I will be able to format it before sending it back.
Koyangie

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I have an external drive with a bootable OS X 10.6.8. I was in a transition between building up a SSD swapped drive. The SSD is installed in the CPU box but I have my old installation running from an external.
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This drive has USB 3.0 and I see everything through USB that I see through Firewire. Connecting the other way did not get around the problem.
Of course I will buy an AC adapter for every external drive and never run them using Firewire again but the horse is out of the barn.
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I took the problematic hard drive and installed it in my Mac Mini so I could attempt a Safe Boot and then Archive and Install if necessary.
Safe Mode didn't work. The drive produced the circle with a slash symbol.
I reset the PRAM which was part of a list of steps to work through I found created by Apple Support.
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I attempted Archive and Install however when it went to show what target drives were available it was a blank box and all buttons were grayed out.
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Hello Everyone!
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Owners Enabled : - Used : -
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You may believe this is Apple's problem but I just like Baltwo have had absolutely no problems with any of my Firewire drives in Lion. So unless you can come up with much stronger evidence to the contrary, I doubt that your feeling are going to carry any weight at all.
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Hard drive will not mount - SMART STATUS "not supported"

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If you are hearing noises from the HD, then I suggest that oyou start backing up.
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Need this info so that the knowledgeable users can provide you with the proper troubleshooting solution(s).
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I recently had a similar issue (different conditions, same issue) and here is what I posted, maybe it can help you:
http://discussions.apple.com/thread.jspa?threadID=1638087&tstart=0
I didn't mention another possible solution mentioned somewhere else: replace certain kernel extensions in your 10.4.10 or 11 installation with those present in 10.4.9: "IOHIDFamily.kext", "IOUSBFamily.kext" and "IOUSBMassStorageClass.kext" (using Pacifist).
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HARD DRIVES WILL NOT MOUNT AT ALL

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Philip,
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My external hard drive will not mount on the desktop?

My external hard drive no longer mounts on my desktop, the hard drive has been checked & is working-has anyone ideas?

Hello cuckoo55,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
Mac OS X v10.6: How to show your hard drive icon on the desktop
http://support.apple.com/kb/HT3746
In the Finder, choose Preferences from the Finder menu.
Click the General icon on the toolbar.
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Thank you for your suggestions and your continuing interest in trying to solve my problem. I rebooted with CMD + S and got the black screen with white text. Unfortunately I could not type anything on it. I typed /sbin/fsck -y and hit return. Nothing showed on the screen. I waited awhile in case this was one of those situations where it is hidden. But nothing happened. I tried the whole sequence a couple more times and same thing: I was unable to type anything that would show up on the screen.
Am I missing something here? I tried typing holding down various keys and could not get anything to register.
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I am right now installing system X.4 onto an external HD. If I can get that to boot and work OK, I can just use that for awhile until I get the internal either replaced or repaired.
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Power Mac Dual 450 Mac OS X (10.4)
Power Mac Dual 450 Mac OS X (10.4)

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FileSalvage
VirtualLab
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Hi, hjbugs, and welcome to Apple Discussions. Disconnecting the drive while your Powerbook was accessing it probably caused your problem. It may be repairable using DiskWarrior or TechTool Pro, but if you don't have access to one of those and aren't going to buy one, reformatting the drive with Disk Utility may be the only other way to make it usable again. If it contains data you need to recover first (i.e., data that isn't also stored on your internal HD or other storage media), download the free demo version of one of the data recovery utilities mentioned in this thread and use it to see what is recoverable. If the files you need are recoverable, buy the full version of one of the utilities and recover them.

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Hard Drive will not Mount

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