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external hard drive won't mount

I have an external hard drive that i was using last week to back up iphoto, now can't be mounted. I have gone into disk utility and both verified and repaired the drive but it won't let me mount it. I am using Mac OSX 10.7.2.


I am not sure what else to do without reformatting the drive and losing all the data.

AppleTV 2, Mac OS X (10.6.8)

Posted on Jan 2, 2012 10:44 AM

Reply
9 replies

Jan 3, 2012 8:53 AM in response to CaseyKT

Hi All,


Lot's of people are looking but no replies yet!!


I hope someone can provide me with some guidance on how to mount the device, and if not, what can i do with the external drive to ensure I get the data from it. Is it possible to copy it from the external drive, through disk utility to my iMac, or can i take it somewhere to be recovered?


Thanks.

Nov 21, 2012 1:53 PM in response to CaseyKT

Hi Casey. I have the same problem. My external hd, formated for mac os journaled, used exclusively as a time machine backup drive will not mount. The drive is visable in disk utility and verifys and repairs ok. For reasons unknown the drive will not mount. I tried the drive on two other macs and found the same result, appears in disk utility and will not mount.


Did you find a solution?

Nov 21, 2012 2:24 PM in response to lbernstein821

I never found a direct solution...I was able to copy the bulk of the contents of the drive to my iMac using disk utility. From there I was able to check and see what I was able to recover on my own and luckily the bulk of the data was there. I did lose some info, but not the important stuff, my iphoto library was there. If this had not worked I was going to go to a disk recover centre and pay a lot of money to them to recover all the lost data for me.


after the data was recovered I was able to reformat the hard drive and it has been working fine ever since, I just don't trust any important data back ups on that one.

Jun 27, 2014 7:11 PM in response to minia623

One option that I have seen work in some cases, is to create an image (.dmg) from the disk using Disk Utility, instead of trying to mounting it. Unix dd command can be an option, which is available in MAC OS X Terminal.


If the drive is damaged at hardware level, YMMV.


You can also search for HFS+ filesystem corruption issues if you need details of possible issues in your favorite search engine.

external hard drive won't mount

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